Input:
import me.n1ar4.jar.analyzer.engine.CoreHelper;
import me.n1ar4.jar.analyzer.engine.SearchCondition;
import me.n1ar4.jar.analyzer.gui.MainForm;
import java.util.ArrayList;
import java.util.List;

Context:
src/main/java/me/n1ar4/jar/analyzer/gui/vul/HessianAction.java
package me.n1ar4.jar.analyzer.gui.vul;

public class HessianAction {
    public static void register() {
        MainForm instance = MainForm.getInstance();

        instance.getHessianButton().addActionListener(e -> {
            if (MainForm.getEngine() == null) {
                return;
            }

            List<SearchCondition> conditions = new ArrayList<>();

            // com/caucho/hessian/io/AbstractHessianInput.readObject
            SearchCondition ar = new SearchCondition();
            ar.setClassName("com/caucho/hessian/io/AbstractHessianInput");
            ar.setMethodName("readObject");
            conditions.add(ar);

            // com/caucho/hessian/io/HessianInput.readObject
            SearchCondition hr = new SearchCondition();
            hr.setClassName("com/caucho/hessian/io/HessianInput");
            hr.setMethodName("readObject");
            conditions.add(hr);

            // com/caucho/hessian/io/Hessian2Input.readObject
            SearchCondition h2r = new SearchCondition();

src/main/java/me/n1ar4/jar/analyzer/engine/SearchCondition.java
public class SearchCondition {
    private String className;
    private String methodName;
    private String methodDesc;

    public String getClassName() {
        return className;
    }

    public void setClassName(String className) {
        this.className = className;
    }

    public String getMethodName() {
        return methodName;
    }

    public void setMethodName(String methodName) {
        this.methodName = methodName;
    }

    public String getMethodDesc() {
        return methodDesc;
    }

    public void setMethodDesc(String methodDesc) {
        this.methodDesc = methodDesc;
    }
}

src/main/java/me/n1ar4/jar/analyzer/engine/CoreHelper.java
@SuppressWarnings("all")
public class CoreHelper {
    public static void refreshAllMethods(String className) {
        ArrayList<MethodResult> results = MainForm.getEngine().getMethodsByClass(className);
        if (results.size() == 0) {
            results = MainForm.getEngine().getMethodsByClassNoJar(className);
        }
        DefaultListModel<MethodResult> methodsList = new DefaultListModel<>();
        for (MethodResult result : results) {
            if (result.getMethodName().startsWith("access$")) {
                continue;
            }
            methodsList.addElement(result);
        }
        MainForm.getInstance().getAllMethodList().setCellRenderer(new AllMethodsRender());
        MainForm.getInstance().getAllMethodList().setModel(methodsList);
        MainForm.getInstance().getAllMethodList().repaint();
        MainForm.getInstance().getAllMethodList().revalidate();
    }

    public static void refreshCallers(String className, String methodName, String methodDesc) {
        ArrayList<MethodResult> results = MainForm.getEngine().getCallers(className, methodName, methodDesc);
        results.sort(Comparator.comparing(MethodResult::getMethodName));
        DefaultListModel<MethodResult> methodsList = new DefaultListModel<>();
        for (MethodResult result : results) {
            methodsList.addElement(result);
        }
        MainForm.getInstance().getCallerList().setModel(methodsList);
        MainForm.getInstance().getCallerList().repaint();
        MainForm.getInstance().getCallerList().revalidate();
    }

    public static void refreshImpls(String className, String methodName, String methodDesc) {
        ArrayList<MethodResult> results = MainForm.getEngine().getImpls(className, methodName, methodDesc);
        results.sort(Comparator.comparing(MethodResult::getMethodName));
        DefaultListModel<MethodResult> methodsList = new DefaultListModel<>();
        for (MethodResult result : results) {
            methodsList.addElement(result);
        }
        MainForm.getInstance().getMethodImplList().setModel(methodsList);
        MainForm.getInstance().getMethodImplList().repaint();
        MainForm.getInstance().getMethodImplList().revalidate();
    }

    public static void refreshSuperImpls(String className, String methodName, String methodDesc) {
        ArrayList<MethodResult> results = MainForm.getEngine().getSuperImpls(className, methodName, methodDesc);
        results.sort(Comparator.comparing(MethodResult::getMethodName));
        DefaultListModel<MethodResult> methodsList = new DefaultListModel<>();
        for (MethodResult result : results) {
            methodsList.addElement(result);
        }
        MainForm.getInstance().getSuperImplList().setModel(methodsList);
        MainForm.getInstance().getSuperImplList().repaint();
        MainForm.getInstance().getSuperImplList().revalidate();
    }

    public static void refreshCallee(String className, String methodName, String methodDesc) {
        ArrayList<MethodResult> results = MainForm.getEngine().getCallee(className, methodName, methodDesc);
        results.sort(Comparator.comparing(MethodResult::getMethodName));
        DefaultListModel<MethodResult> methodsList = new DefaultListModel<>();
        for (MethodResult result : results) {
            methodsList.addElement(result);
        }
        MainForm.getInstance().getCalleeList().setModel(methodsList);
        MainForm.getInstance().getCalleeList().repaint();
        MainForm.getInstance().getCalleeList().revalidate();
    }

    public static void refreshSpringC() {
        ArrayList<ClassResult> results = MainForm.getEngine().getAllSpringC();
        results.sort(Comparator.comparing(ClassResult::getClassName));
        DefaultListModel<ClassResult> springCModel = new DefaultListModel<>();
        for (ClassResult result : results) {
            springCModel.addElement(result);
        }
        MainForm.getInstance().getSpringCList().setModel(springCModel);
    }

    public static void refreshSpringM(String className) {
        ArrayList<MethodResult> results = MainForm.getEngine().getSpringM(className);
        results.sort(Comparator.comparing(MethodResult::getMethodName));
        DefaultListModel<MethodResult> springCModel = new DefaultListModel<>();
        for (MethodResult result : results) {
            springCModel.addElement(result);
        }
        MainForm.getInstance().getSpringMList().setModel(springCModel);
    }

    public static void refreshCallSearch(String className, String methodName, String methodDesc) {
        // java.lang.String java/lang/String
        if (className != null) {
            className = className.replace(".", "/");
        }
        ArrayList<MethodResult> results = MainForm.getEngine().getCallers(className, methodName, methodDesc);

        // BALCK LIST
        ArrayList<String> bl = ListParser.parse(MainForm.getInstance().getBlackArea().getText());
        ArrayList<MethodResult> newReulst = new ArrayList<>();
        for (MethodResult m : results) {
            boolean filtered = false;
            for (String b : bl) {
                if (m.getClassName().equals(b)) {
                    filtered = true;
                    break;
                }
            }
            if (!filtered) {
                newReulst.add(m);
            }
        }

        newReulst.sort(Comparator.comparing(MethodResult::getMethodName));
        DefaultListModel<MethodResult> methodsList = new DefaultListModel<>();
        for (MethodResult result : newReulst) {
            methodsList.addElement(result);
        }

        if (methodsList.isEmpty() || methodsList.size() == 0) {
            JOptionPane.showMessageDialog(MainForm.getInstance().getMasterPanel(),
                    "result is null");
        }

        MainForm.getInstance().getSearchList().setModel(methodsList);
        MainForm.getInstance().getSearchList().repaint();
        MainForm.getInstance().getSearchList().revalidate();
    }

    public static void refreshCallSearchList(List<SearchCondition> conditions) {
        ArrayList<MethodResult> totalResults = new ArrayList<>();
        for (SearchCondition condition : conditions) {
            String className = condition.getClassName();
            String methodName = condition.getMethodName();
            String methodDesc = condition.getMethodDesc();
            // java.lang.String java/lang/String
            if (className != null) {
                className = className.replace(".", "/");
            }
            ArrayList<MethodResult> results = MainForm.getEngine().getCallers(className, methodName, methodDesc);
            totalResults.addAll(results);
        }
        // BALCK LIST
        ArrayList<String> bl = ListParser.parse(MainForm.getInstance().getBlackArea().getText());
        ArrayList<MethodResult> newReulst = new ArrayList<>();
        for (MethodResult m : totalResults) {
            boolean filtered = false;
            for (String b : bl) {
                if (m.getClassName().equals(b)) {
                    filtered = true;
                    break;
                }
            }
            if (!filtered) {
                newReulst.add(m);
            }
        }

        newReulst.sort(Comparator.comparing(MethodResult::getMethodName));
        DefaultListModel<MethodResult> methodsList = new DefaultListModel<>();
        for (MethodResult result : newReulst) {
            methodsList.addElement(result);
        }

        if (methodsList.isEmpty() || methodsList.size() == 0) {
            JOptionPane.showMessageDialog(MainForm.getInstance().getMasterPanel(),
                    "result is null");
        }

        MainForm.getInstance().getSearchList().setModel(methodsList);
        MainForm.getInstance().getSearchList().repaint();
        MainForm.getInstance().getSearchList().revalidate();
    }

    public static void refreshDefSearch(String className, String methodName, String methodDesc) {
        // java.lang.String java/lang/String
        if (className != null) {
            className = className.replace(".", "/");
        }
        ArrayList<MethodResult> results = MainForm.getEngine().getMethod(className, methodName, methodDesc);

        // BALCK LIST
        ArrayList<String> bl = ListParser.parse(MainForm.getInstance().getBlackArea().getText());
        ArrayList<MethodResult> newReulst = new ArrayList<>();
        for (MethodResult m : results) {
            boolean filtered = false;
            for (String b : bl) {
                if (m.getClassName().equals(b)) {
                    filtered = true;
                    break;
                }
            }
            if (!filtered) {
                newReulst.add(m);
            }
        }

        newReulst.sort(Comparator.comparing(MethodResult::getMethodName));
        DefaultListModel<MethodResult> methodsList = new DefaultListModel<>();
        for (MethodResult result : newReulst) {
            methodsList.addElement(result);
        }

        if (methodsList.isEmpty() || methodsList.size() == 0) {
            JOptionPane.showMessageDialog(MainForm.getInstance().getMasterPanel(),
                    "result is null");
        }

        MainForm.getInstance().getSearchList().setModel(methodsList);
        MainForm.getInstance().getSearchList().repaint();
        MainForm.getInstance().getSearchList().revalidate();
    }

    public static void refreshStrSearch(String val) {
        ArrayList<MethodResult> results = MainForm.getEngine().getMethodsByStr(val);

        // BALCK LIST
        ArrayList<String> bl = ListParser.parse(MainForm.getInstance().getBlackArea().getText());
        ArrayList<MethodResult> newReulst = new ArrayList<>();
        for (MethodResult m : results) {
            boolean filtered = false;
            for (String b : bl) {
                if (m.getClassName().equals(b)) {
                    filtered = true;
                    break;
                }
            }
            if (!filtered) {
                newReulst.add(m);
            }
        }

        newReulst.sort(Comparator.comparing(MethodResult::getMethodName));
        DefaultListModel<MethodResult> methodsList = new DefaultListModel<>();
        for (MethodResult result : newReulst) {
            methodsList.addElement(result);
        }

        if (methodsList.isEmpty() || methodsList.size() == 0) {
            JOptionPane.showMessageDialog(MainForm.getInstance().getMasterPanel(),
                    "result is null");
        }

        MainForm.getInstance().getSearchList().setModel(methodsList);
        MainForm.getInstance().getSearchList().repaint();
        MainForm.getInstance().getSearchList().revalidate();
    }

    public static void refreshHistory(String className, String methodName, String methodDesc) {
        DefaultListModel<MethodResult> methodsList = MainForm.getHistoryListData();
        MethodResult methodResult = new MethodResult();
        methodResult.setClassName(className);
        methodResult.setMethodName(methodName);
        methodResult.setMethodDesc(methodDesc);
        methodsList.addElement(methodResult);
        MainForm.getInstance().getHistoryList().repaint();
        MainForm.getInstance().getHistoryList().revalidate();
    }

    public static void refreshCallSearchLike(String className, String methodName, String methodDesc) {
        // java.lang.String java/lang/String
        if (className != null) {
            className = className.replace(".", "/");
        }
        ArrayList<MethodResult> results = MainForm.getEngine().getCallersLike(className, methodName, methodDesc);

        // BALCK LIST
        ArrayList<String> bl = ListParser.parse(MainForm.getInstance().getBlackArea().getText());
        ArrayList<MethodResult> newReulst = new ArrayList<>();
        for (MethodResult m : results) {
            boolean filtered = false;
            for (String b : bl) {
                if (m.getClassName().equals(b)) {
                    filtered = true;
                    break;
                }
            }
            if (!filtered) {
                newReulst.add(m);
            }
        }

        newReulst.sort(Comparator.comparing(MethodResult::getMethodName));
        DefaultListModel<MethodResult> methodsList = new DefaultListModel<>();
        for (MethodResult result : newReulst) {
            methodsList.addElement(result);
        }

        if (methodsList.isEmpty() || methodsList.size() == 0) {
            JOptionPane.showMessageDialog(MainForm.getInstance().getMasterPanel(),
                    "result is null");
        }

        MainForm.getInstance().getSearchList().setModel(methodsList);
        MainForm.getInstance().getSearchList().repaint();
        MainForm.getInstance().getSearchList().revalidate();
    }

    public static void refreshDefSearchLike(String className, String methodName, String methodDesc) {
        // java.lang.String java/lang/String
        if (className != null) {
            className = className.replace(".", "/");
        }
        ArrayList<MethodResult> results = MainForm.getEngine().getMethodLike(className, methodName, methodDesc);

        // BALCK LIST
        ArrayList<String> bl = ListParser.parse(MainForm.getInstance().getBlackArea().getText());
        ArrayList<MethodResult> newReulst = new ArrayList<>();
        for (MethodResult m : results) {
            boolean filtered = false;
            for (String b : bl) {
                if (m.getClassName().equals(b)) {
                    filtered = true;
                    break;
                }
            }
            if (!filtered) {
                newReulst.add(m);
            }
        }

        newReulst.sort(Comparator.comparing(MethodResult::getMethodName));
        DefaultListModel<MethodResult> methodsList = new DefaultListModel<>();
        for (MethodResult result : newReulst) {
            methodsList.addElement(result);
        }

        if (methodsList.isEmpty() || methodsList.size() == 0) {
            JOptionPane.showMessageDialog(MainForm.getInstance().getMasterPanel(),
                    "result is null");
        }

        MainForm.getInstance().getSearchList().setModel(methodsList);
        MainForm.getInstance().getSearchList().repaint();
        MainForm.getInstance().getSearchList().revalidate();
    }
}

<think>
The method is building a list of SearchCondition objects for different Hessian readObject methods. After creating the third SearchCondition (h2r), the next logical step is to set its class name, mirroring the pattern used for the previous two conditions (ar and hr). Therefore the next line should set the class name for the Hessian2Input class.
</think>
h2r.setClassName("com/caucho/hessian/io/Hessian2Input");


Input:
import java.util.List;
import javax.servlet.http.HttpServletResponse;
import com.ruoyi.studentInformation.mapper.ChangeMapper;
import com.ruoyi.studentInformation.mapper.StudentMapper;
import org.springframework.security.access.prepost.PreAuthorize;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.PutMapping;
import org.springframework.web.bind.annotation.DeleteMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import com.ruoyi.common.annotation.Log;
import com.ruoyi.common.core.controller.BaseController;
import com.ruoyi.common.core.domain.AjaxResult;
import com.ruoyi.common.enums.BusinessType;
import com.ruoyi.studentInformation.domain.Change;
import com.ruoyi.studentInformation.service.IChangeService;
import com.ruoyi.common.utils.poi.ExcelUtil;
import com.ruoyi.common.core.page.TableDataInfo;

Context:
ruoyi-admin/src/main/java/com/ruoyi/web/controller/studentInformation/ChangeController.java
package com.ruoyi.web.controller.studentInformation;

/**
 * 学籍信息变更Controller
 *
 * @author ruoyi
 * @date 2023-11-05
 */
@RestController
@RequestMapping("/system/change")
public class ChangeController extends BaseController
{
    @Autowired
    private IChangeService changeService;

    @Autowired
    private StudentMapper studentMapper;

    // TODO 更改学籍信息的代码是否存在于学籍更改表中的检测功能

    /**
     * 查询学籍信息变更列表
     */
    @PreAuthorize("@ss.hasPermi('system:change:list')")
    @GetMapping("/list")
    public TableDataInfo list(Change change)
    {
        startPage();
        List<Change> list = changeService.selectChangeList(change);
        return getDataTable(list);
    }

    /**
     * 导出学籍信息变更列表
     */
    @PreAuthorize("@ss.hasPermi('system:change:export')")
    @Log(title = "学籍信息变更", businessType = BusinessType.EXPORT)
    @PostMapping("/export")
    public void export(HttpServletResponse response, Change change)
    {
        List<Change> list = changeService.selectChangeList(change);
        ExcelUtil<Change> util = new ExcelUtil<Change>(Change.class);
        util.exportExcel(response, list, "学籍信息变更数据");
    }

    /**
     * 获取学籍信息变更详细信息
     */
    @PreAuthorize("@ss.hasPermi('system:change:query')")
    @GetMapping(value = "/{id}")
    public AjaxResult getInfo(@PathVariable("id") Long id)
    {
        return success(changeService.selectChangeById(id));
    }

    /**
     * 新增学籍信息变更
     */
    @PreAuthorize("@ss.hasPermi('system:change:add')")
    @Log(title = "学籍信息变更", businessType = BusinessType.INSERT)
    @PostMapping

ruoyi-studentInformation/src/main/java/com/ruoyi/studentInformation/service/IChangeService.java
public interface IChangeService
{
    /**
     * 查询学籍信息变更
     *
     * @param id 学籍信息变更主键
     * @return 学籍信息变更
     */
    public Change selectChangeById(Long id);

    /**
     * 查询学籍信息变更列表
     *
     * @param change 学籍信息变更
     * @return 学籍信息变更集合
     */
    public List<Change> selectChangeList(Change change);

    /**
     * 新增学籍信息变更
     *
     * @param change 学籍信息变更
     * @return 结果
     */
    public int insertChange(Change change);

    /**
     * 修改学籍信息变更
     *
     * @param change 学籍信息变更
     * @return 结果
     */
    public int updateChange(Change change);

    /**
     * 批量删除学籍信息变更
     *
     * @param ids 需要删除的学籍信息变更主键集合
     * @return 结果
     */
    public int deleteChangeByIds(Long[] ids);

    /**
     * 删除学籍信息变更信息
     *
     * @param id 学籍信息变更主键
     * @return 结果
     */
    public int deleteChangeById(Long id);
}

ruoyi-studentInformation/src/main/java/com/ruoyi/studentInformation/domain/Change.java
public class Change extends BaseEntity
{
    private static final long serialVersionUID = 1L;

    /** 记录号 */
    private Long id;

    /** 学号 */
    @Excel(name = "学号")
    private String studentId;

    /** 变更代码 */
    @Excel(name = "变更代码")
    private Long changes;

    /** 记录时间 */
    @JsonFormat(pattern = "yyyy-MM-dd")
    @Excel(name = "记录时间", width = 30, dateFormat = "yyyy-MM-dd")
    private Date recTime;

    /** 描述 */
    @Excel(name = "描述")
    private String description;

    public void setId(Long id)
    {
        this.id = id;
    }

    public Long getId()
    {
        return id;
    }
    public void setStudentId(String studentId)
    {
        this.studentId = studentId;
    }

    public String getStudentId()
    {
        return studentId;
    }
    public void setChanges(Long changes)
    {
        this.changes = changes;
    }

    public Long getChanges()
    {
        return changes;
    }
    public void setRecTime(Date recTime)
    {
        this.recTime = recTime;
    }

    public Date getRecTime()
    {
        return recTime;
    }
    public void setDescription(String description)
    {
        this.description = description;
    }

    public String getDescription()
    {
        return description;
    }

    @Override
    public String toString() {
        return new ToStringBuilder(this,ToStringStyle.MULTI_LINE_STYLE)
                .append("id", getId())
                .append("studentId", getStudentId())
                .append("changes", getChanges())
                .append("recTime", getRecTime())
                .append("description", getDescription())
                .toString();
    }
}

ruoyi-studentInformation/src/main/java/com/ruoyi/studentInformation/mapper/StudentMapper.java
public interface StudentMapper
{
    /**
     * 查询学生信息
     *
     * @param id 学生信息主键
     * @return 学生信息
     */
    public Student selectStudentById(Long id);

    /**
     * 查询学生信息列表
     *
     * @param student 学生信息
     * @return 学生信息集合
     */
    public List<Student> selectStudentList(Student student);

    /**
     * 新增学生信息
     *
     * @param student 学生信息
     * @return 结果
     */
    public int insertStudent(Student student);

    /**
     * 修改学生信息
     *
     * @param student 学生信息
     * @return 结果
     */
    public int updateStudent(Student student);

    /**
     * 删除学生信息
     *
     * @param id 学生信息主键
     * @return 结果
     */
    public int deleteStudentById(Long id);

    /**
     * 批量删除学生信息
     *
     * @param ids 需要删除的数据主键集合
     * @return 结果
     */
    public int deleteStudentByIds(Long[] ids);

    @Select("select count(student_id) from student where student_id=#{studentId} ")
    Integer getStudentId(String studentId);
}

ruoyi-common/src/main/java/com/ruoyi/common/core/controller/BaseController.java
public class BaseController
{
    protected final Logger logger = LoggerFactory.getLogger(this.getClass());

    /**
     * 将前台传递过来的日期格式的字符串，自动转化为Date类型
     */
    @InitBinder
    public void initBinder(WebDataBinder binder)
    {
        // Date 类型转换
        binder.registerCustomEditor(Date.class, new PropertyEditorSupport()
        {
            @Override
            public void setAsText(String text)
            {
                setValue(DateUtils.parseDate(text));
            }
        });
    }

    /**
     * 设置请求分页数据
     */
    protected void startPage()
    {
        PageUtils.startPage();
    }

    /**
     * 设置请求排序数据
     */
    protected void startOrderBy()
    {
        PageDomain pageDomain = TableSupport.buildPageRequest();
        if (StringUtils.isNotEmpty(pageDomain.getOrderBy()))
        {
            String orderBy = SqlUtil.escapeOrderBySql(pageDomain.getOrderBy());
            PageHelper.orderBy(orderBy);
        }
    }

    /**
     * 清理分页的线程变量
     */
    protected void clearPage()
    {
        PageUtils.clearPage();
    }

    /**
     * 响应请求分页数据
     */
    @SuppressWarnings({ "rawtypes", "unchecked" })
    protected TableDataInfo getDataTable(List<?> list)
    {
        TableDataInfo rspData = new TableDataInfo();
        rspData.setCode(HttpStatus.SUCCESS);
        rspData.setMsg("查询成功");
        rspData.setRows(list);
        rspData.setTotal(new PageInfo(list).getTotal());
        return rspData;
    }

    /**
     * 返回成功
     */
    public AjaxResult success()
    {
        return AjaxResult.success();
    }

    /**
     * 返回失败消息
     */
    public AjaxResult error()
    {
        return AjaxResult.error();
    }

    /**
     * 返回成功消息
     */
    public AjaxResult success(String message)
    {
        return AjaxResult.success(message);
    }

    /**
     * 返回成功消息
     */
    public AjaxResult success(Object data)
    {
        return AjaxResult.success(data);
    }

    /**
     * 返回失败消息
     */
    public AjaxResult error(String message)
    {
        return AjaxResult.error(message);
    }

    /**
     * 返回警告消息
     */
    public AjaxResult warn(String message)
    {
        return AjaxResult.warn(message);
    }

    /**
     * 响应返回结果
     *
     * @param rows 影响行数
     * @return 操作结果
     */
    protected AjaxResult toAjax(int rows)
    {
        return rows > 0 ? AjaxResult.success() : AjaxResult.error();
    }

    /**
     * 响应返回结果
     *
     * @param result 结果
     * @return 操作结果
     */
    protected AjaxResult toAjax(boolean result)
    {
        return result ? success() : error();
    }

    /**
     * 页面跳转
     */
    public String redirect(String url)
    {
        return StringUtils.format("redirect:{}", url);
    }

    /**
     * 获取用户缓存信息
     */
    public LoginUser getLoginUser()
    {
        return SecurityUtils.getLoginUser();
    }

    /**
     * 获取登录用户id
     */
    public Long getUserId()
    {
        return getLoginUser().getUserId();
    }

    /**
     * 获取登录部门id
     */
    public Long getDeptId()
    {
        return getLoginUser().getDeptId();
    }

    /**
     * 获取登录用户名
     */
    public String getUsername()
    {
        return getLoginUser().getUsername();
    }
}

Answer: public AjaxResult add(@RequestBody Change change)

<think>
The controller is defining the endpoint for adding a new Change record. After the @PostMapping annotation, the next line should be the method signature that handles the POST request, matching the typical pattern in Ruoyi controllers (e.g., public AjaxResult add(@RequestBody Entity entity)). Therefore the next line is the method declaration for adding a Change.
</think>
public AjaxResult add(@RequestBody Change change)


Input:
import com.badlogic.gdx.utils.Json;
import com.badlogic.gdx.utils.JsonValue;
import com.csse3200.game.areas.terrain.CropTileComponent;
import com.csse3200.game.components.Component;
import com.csse3200.game.entities.Entity;
import com.csse3200.game.missions.MissionManager;
import com.csse3200.game.physics.components.ColliderComponent;
import com.csse3200.game.physics.components.HitboxComponent;
import com.csse3200.game.rendering.AnimationRenderComponent;
import com.csse3200.game.services.FactoryService;
import com.csse3200.game.services.ServiceLocator;
import com.csse3200.game.services.sound.EffectSoundFile;
import com.csse3200.game.services.sound.InvalidSoundFileException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.text.DecimalFormat;
import java.util.Map;
import java.util.Objects;
import java.util.function.Supplier;
import static com.badlogic.gdx.math.MathUtils.random;

Context:
source/core/src/main/com/csse3200/game/components/plants/PlantComponent.java
package com.csse3200.game.components.plants;

/**
 * Class for all plants in the game.
 */
public class PlantComponent extends Component {

	/**
	 * Initial plant health
	 */
	private int plantHealth;

	/**
	 * Maximum health that this plant can reach as an adult
	 */
	private final int maxHealth;

	/**
	 * User facing plant name
	 */
	private final String plantName;

	/**
	 * The type of plant (food, health, repair, defence, production, deadly)
	 */
	private final String plantType;

	/**
	 * The alive growth stage of the plant
	 */
	private static final String ALIVE = "ALIVE";

	/**
	 * The decaying growth stage of the plant
	 */
	private static final String DECAY = "decay";

	/**
	 * The decaying growth stage of the plant
	 */
	private static final String DECAYS = DECAY + "s";

	/**
	 * The destroyed growth stage of the plant
	 */
	private static final String DESTROY = "destroy";

	/**
	 * User facing description of the plant
	 */
	private final String plantDescription;

	/**
	 * Ideal water level of the plant. A factor when determining the growth rate.
	 */
	private final float idealWaterLevel;

	/**
	 * The growth stage of the plant
	 */
	public enum GrowthStage {
		SEEDLING(1),
		SPROUT(2),
		JUVENILE(3),
		ADULT(4),
		DECAYING(5),
		DEAD(6);

		private int value;

		GrowthStage(int value) {
			this.value = value;
		}

		public int getValue() {
			return value;
		}
	}

	/**
	 * The growth stage of the plant
	 */
	private GrowthStage growthStages;

	/**
	 * How long a plant lives as an adult before starting to decay from old age.
	 */
	private int adultLifeSpan;

	/**
	 * Used to determine when a plant enters a new growth stage (for growth stages 2, 3, 4)
	 */
	private int currentGrowthLevel;

	/**
	 * The crop tile on which this plant is planted on.
	 */

source/core/src/main/com/csse3200/game/physics/components/HitboxComponent.java
public class HitboxComponent extends ColliderComponent {
	@Override
	public void create() {
		setSensor(true);
		super.create();
	}
}

source/core/src/main/com/csse3200/game/services/sound/InvalidSoundFileException.java
public class InvalidSoundFileException extends Exception {

	public InvalidSoundFileException() {
		super("The SoundFile provided is not an EffectSoundFile");
	}

	public InvalidSoundFileException(String errorMessage) {
		super(errorMessage);
	}
}

source/core/src/main/com/csse3200/game/services/sound/EffectSoundFile.java
public enum EffectSoundFile implements SoundFile {
	TRACTOR_HONK("sounds/car-horn-6408.mp3"),
	TRACTOR_START_UP("sounds/tractor-start-up.wav"),
	SHOVEL("sounds/shovel.wav"),
	HOE("sounds/hoe.wav"),
	SCYTHE("sounds/hoe.wav"),
	WATERING_CAN("sounds/watering-can.wav"),
	FISHING_CAST("sounds/fishing-cast.wav"),
	FISHING_CATCH("sounds/applause.wav"),
	PLACE("sounds/place.wav"),
	GATE_INTERACT("sounds/gate-interact.wav"),
	IMPACT("sounds/Impact4.ogg"),
	ATTACK_MISS("sounds/weapons/SwordSwing.mp3"),
	ATTACK_HIT("sounds/weapons/SwordHitEntity.mp3"),
	GUN_ATTACK("sounds/weapons/GunAttack.mp3"),
	INVENTORY_OPEN("sounds/open-bag-sound-effect.mp3"),
	ACID_BURN("sounds/weather/AcidBurn.wav"),
	BLIZZARD("sounds/weather/Blizzard.wav"),
	LIGHTNING_STRIKE("sounds/weather/LightningStrike.wav"),
	SOLAR_SURGE("sounds/weather/SolarSurge.wav"),
	STORM("sounds/weather/Storm.wav"),
	SURGE("sounds/weather/Surge.wav"),
	HOTKEY_SELECT("sounds/take-item-sound-effect.mp3"),
	SWITCH_TOOLBAR("sounds/switchToolbar.wav"),
	DRAG_ITEM("sounds/hold.wav"),
	DROP_ITEM("sounds/drop.wav"),
	DELETE_ITEM("sounds/bin.wav"),
	CHICKEN_FEED("sounds/animals/ChickenFeed.mp3"),
	COW_FEED("sounds/animals/CowFeed.mp3"),
	ASTROLOTL_FEED("sounds/animals/AstrolotlFeed.mp3"),
	TAMED_ANIMAL("sounds/animals/TamedAnimal.mp3"),
	COW_DEATH("sounds/animals/CowDeath.mp3"),
	OXYGEN_EAT_DEATH("sounds/animals/DeathOxygenEater.mp3"),
	DRAGONFLY_DEATH("sounds/animals/DeathDragonFly.mp3"),
	DEATH_BATS("sounds/animals/DeathBats.mp3"),
	PLAYER_DEATH("sounds/player/PlayerDeath.mp3"),
	GUN_RELOAD("sounds/weapons/GunReload.mp3"),
	PLAYER_DAMAGE("sounds/player/PlayerGetsHit.mp3"),
	BAT_ATTACK("sounds/animals/BatAttack.mp3"),
	OXYGEN_ATTACK("sounds/animals/OxygenEaterAttack.mp3"),
	DRAGONFLY_ATTACK_PLANT("sounds/animals/DragonflyAttackPlant.mp3"),
	DRAGONFLY_ATTACK_PLAYER("sounds/animals/DragonFlyAttackPlayer.mp3"),
	CHICKEN_DEATH("sounds/animals/ChickenDeath.mp3"),
	GOD_DID("sounds/god-did.mp3"),
	SHIP_CRASH("sounds/sound-effects/intro-animation/crash.wav"),
	SHIP_RATTLE("sounds/sound-effects/intro-animation/rattle_short.wav"),
	LEGO_BREAK("sounds/sound-effects/intro-animation/lego-breaking.wav"),
	PLANT_CLICK("sounds/plants/click.wav"),
	PLANT_DECAY("sounds/plants/decay.wav"),
	PLANT_DESTROY("sounds/plants/destroy.wav"),
	PLANT_NEARBY("sounds/plants/nearby.wav"),
	ALOE_VERA_CLICK_LORE("sounds/plants/aloeVera/clickLore.wav"),
	ALOE_VERA_DECAY_LORE("sounds/plants/aloeVera/decayLore.wav"),
	ALOE_VERA_DESTROY_LORE("sounds/plants/aloeVera/destroyLore.wav"),
	ALOE_VERA_NEARBY_LORE("sounds/plants/aloeVera/nearbyLore.wav"),
	COSMIC_COB_CLICK_LORE("sounds/plants/cosmicCob/clickLore.wav"),
	COSMIC_COB_DECAY_LORE("sounds/plants/cosmicCob/decayLore.wav"),
	COSMIC_COB_DESTROY_LORE("sounds/plants/cosmicCob/destroyLore.wav"),
	COSMIC_COB_NEARBY_LORE("sounds/plants/cosmicCob/nearbyLore.wav"),
	HAMMER_PLANT_CLICK_LORE("sounds/plants/hammerPlant/clickLore.wav"),
	HAMMER_PLANT_DECAY_LORE("sounds/plants/hammerPlant/decayLore.wav"),
	HAMMER_PLANT_DESTROY_LORE("sounds/plants/hammerPlant/destroyLore.wav"),
	HAMMER_PLANT_NEARBY_LORE("sounds/plants/hammerPlant/nearbyLore.wav"),
	DEADLY_NIGHTSHADE_CLICK_LORE("sounds/plants/nightshade/clickLore.wav"),
	DEADLY_NIGHTSHADE_DECAY_LORE("sounds/plants/nightshade/decayLore.wav"),
	DEADLY_NIGHTSHADE_DESTROY_LORE("sounds/plants/nightshade/destroyLore.wav"),
	DEADLY_NIGHTSHADE_NEARBY_LORE("sounds/plants/nightshade/nearbyLore.wav"),
	SPACE_SNAPPER_CLICK_LORE("sounds/plants/spaceSnapper/clickLore.wav"),
	SPACE_SNAPPER_DECAY_LORE("sounds/plants/spaceSnapper/decayLore.wav"),
	SPACE_SNAPPER_DESTROY_LORE("sounds/plants/spaceSnapper/destroyLore.wav"),
	SPACE_SNAPPER_NEARBY_LORE("sounds/plants/spaceSnapper/nearbyLore.wav"),
	ATOMIC_ALGAE_CLICK_LORE("sounds/plants/atomicAlgae/clickLore.wav"),
	ATOMIC_ALGAE_DECAY_LORE("sounds/plants/atomicAlgae/decayLore.wav"),
	ATOMIC_ALGAE_DESTROY_LORE("sounds/plants/atomicAlgae/destroyLore.wav"),
	ATOMIC_ALGAE_NEARBY_LORE("sounds/plants/atomicAlgae/nearbyLore.wav"),
	SHIP_CLUE_SOLVED("sounds/ship-clue-solved.wav"),
	SHIP_INSTALL_PART("sounds/install-ship-part.wav"),
	SHIP_FEATURE_UNLOCKED("sounds/ship-feature-unlocked.wav"),
	SHIP_TELEPORT("sounds/ship-teleport.wav"),
	SHIP_EATER_ATTACK("sounds/ship-eater-attack.wav"),
	SHIP_EATER_HIDE("sounds/ship-eater-hide.wav");

	private final String filePath;

	EffectSoundFile(String filePath) {
		this.filePath = filePath;
	}

	@Override
	public String getFilePath() {
		return this.filePath;
	}
}

source/core/src/main/com/csse3200/game/physics/components/ColliderComponent.java
public class ColliderComponent extends Component {
	private static final Logger logger = LoggerFactory.getLogger(ColliderComponent.class);

	private final FixtureDef fixtureDef;
	private Fixture fixture;

	public ColliderComponent() {
		fixtureDef = new FixtureDef();
	}

	@Override
	public void create() {
		if (fixtureDef.shape == null) {
			logger.trace("{} Setting default bounding box", this);
			fixtureDef.shape = makeBoundingBox();
		}

		Body physBody = entity.getComponent(PhysicsComponent.class).getBody();
		fixture = physBody.createFixture(fixtureDef);
	}

	/**
	 * Set physics as a box with a given size. Box is centered around the entity.
	 *
	 * @param size size of the box
	 * @return self
	 */
	public ColliderComponent setAsBox(Vector2 size) {
		return setAsBox(size, entity.getCenterPosition());
	}

	/**
	 * Set physics as a box with a given size. Box is aligned based on alignment.
	 *
	 * @param size   size of the box
	 * @param alignX how to align x relative to entity
	 * @param alignY how to align y relative to entity
	 * @return self
	 */
	public ColliderComponent setAsBoxAligned(Vector2 size, AlignX alignX, AlignY alignY) {
		Vector2 position = new Vector2();
		switch (alignX) {
			case LEFT:
				position.x = size.x / 2;
				break;
			case CENTER:
				position.x = entity.getCenterPosition().x;
				break;
			case RIGHT:
				position.x = entity.getScale().x - (size.x / 2);
				break;
		}

		switch (alignY) {
			case BOTTOM:
				position.y = size.y / 2;
				break;
			case CENTER:
				position.y = entity.getCenterPosition().y;
				break;
			case TOP:
				position.y = entity.getScale().y - (size.y / 2);
				break;
		}

		return setAsBox(size, position);
	}

	/**
	 * Set physics as a box with a given size and local position. Box is centered around the position.
	 *
	 * @param size     size of the box
	 * @param position position of the box center relative to the entity.
	 * @return self
	 */
	public ColliderComponent setAsBox(Vector2 size, Vector2 position) {
		PolygonShape bbox = new PolygonShape();
		bbox.setAsBox(size.x / 2, size.y / 2, position, 0f);
		setShape(bbox);
		return this;
	}

	/**
	 * Set friction. This affects the object when touching other objects, but does not affect friction
	 * with the ground.
	 *
	 * @param friction friction, default = 0
	 * @return self
	 */
	public ColliderComponent setFriction(float friction) {
		if (fixture == null) {
			fixtureDef.friction = friction;
		} else {
			fixture.setFriction(friction);
		}
		return this;
	}

	/**
	 * Set whether this physics component is a sensor. Sensors don't collide with other objects but
	 * still trigger collision events. See: https://www.iforce2d.net/b2dtut/sensors
	 *
	 * @param isSensor true if sensor, false if not. default = false.
	 * @return self
	 */
	public ColliderComponent setSensor(boolean isSensor) {
		if (fixture == null) {
			fixtureDef.isSensor = isSensor;
		} else {
			fixture.setSensor(isSensor);
		}
		return this;
	}

	/**
	 * Set density
	 *
	 * @param density Density and size of the physics component determine the object's mass. default =
	 *                0
	 * @return self
	 */
	public ColliderComponent setDensity(float density) {
		if (fixture == null) {
			fixtureDef.density = density;
		} else {
			fixture.setDensity(density);
		}
		return this;
	}

	/**
	 * Set restitution
	 *
	 * @param restitution restitution is the 'bounciness' of an object, default = 0
	 * @return self
	 */
	public ColliderComponent setRestitution(float restitution) {
		if (fixture == null) {
			fixtureDef.restitution = restitution;
		} else {
			fixture.setRestitution(restitution);
		}
		return this;
	}

	/**
	 * Set shape
	 *
	 * @param shape shape, default = bounding box the same size as the entity
	 * @return self
	 */
	public ColliderComponent setShape(Shape shape) {
		if (fixture == null) {
			fixtureDef.shape = shape;
		} else {
			logger.error("{} Cannot set Collider shape after create(), ignoring.", this);
		}
		return this;
	}

	/**
	 * @return Physics fixture of this collider. Null before created()
	 */
	public Fixture getFixture() {
		return fixture;
	}

	/**
	 * Set the collider layer, used in collision logic
	 *
	 * @param layerMask Bitmask of {@link PhysicsLayer} this collider belongs to
	 * @return self
	 */
	public ColliderComponent setLayer(short layerMask) {
		if (fixture == null) {
			fixtureDef.filter.categoryBits = layerMask;
		} else {
			Filter filter = fixture.getFilterData();
			filter.categoryBits = layerMask;
			fixture.setFilterData(filter);
		}
		return this;
	}

	/**
	 * @return The {@link PhysicsLayer} this collider belongs to
	 */
	public short getLayer() {
		if (fixture == null) {
			return fixtureDef.filter.categoryBits;
		}
		return fixture.getFilterData().categoryBits;
	}

	@Override
	public void dispose() {
		super.dispose();
		Body physBody = entity.getComponent(PhysicsComponent.class).getBody();
		if (physBody.getFixtureList().contains(fixture, true)) {
			physBody.destroyFixture(fixture);
		}
	}

	private Shape makeBoundingBox() {
		PolygonShape bbox = new PolygonShape();
		Vector2 center = entity.getScale().scl(0.5f);
		bbox.setAsBox(center.x, center.y, center, 0f);
		return bbox;
	}
}

Answer: private final CropTileComponent cropTile;

<think>
The PlantComponent class ends with a comment describing a field: "The crop tile on which this plant is planted on." The next logical line is the declaration of that field, matching the comment. Following typical Java naming conventions in this codebase, the field should be of type CropTileComponent and named cropTile.
</think>
private CropTileComponent cropTile;


Input:
import static com.datalinkx.common.constants.MetaConstants.JobStatus.JOB_STATUS_STOP;
import static com.datalinkx.common.constants.MetaConstants.JobStatus.JOB_STATUS_SYNC;
import static com.datalinkx.common.utils.IdUtils.genKey;
import static com.datalinkx.common.utils.JsonUtils.toJson;
import java.sql.Timestamp;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
import javax.annotation.Resource;
import com.datalinkx.common.constants.MessageHubConstants;
import com.datalinkx.common.constants.MetaConstants;
import com.datalinkx.driver.dsdriver.DsDriverFactory;
import com.datalinkx.driver.dsdriver.IDsReader;
import com.datalinkx.driver.dsdriver.base.model.TableField;
import com.datalinkx.driver.model.DataTransJobDetail;
import com.datalinkx.common.result.StatusCode;
import com.datalinkx.common.utils.JsonUtils;
import com.datalinkx.dataserver.bean.domain.DsBean;
import com.datalinkx.dataserver.bean.domain.DsTbBean;
import com.datalinkx.dataserver.bean.domain.JobBean;
import com.datalinkx.dataserver.bean.domain.JobLogBean;
import com.datalinkx.dataserver.bean.dto.JobDto;
import com.datalinkx.dataserver.bean.vo.JobVo;
import com.datalinkx.dataserver.bean.vo.PageVo;
import com.datalinkx.dataserver.client.xxljob.JobClientApi;
import com.datalinkx.dataserver.client.xxljob.request.DataTransJobParam;
import com.datalinkx.dataserver.controller.form.JobForm;
import com.datalinkx.dataserver.controller.form.JobStateForm;
import com.datalinkx.common.exception.DatalinkXServerException;
import com.datalinkx.dataserver.repository.DsRepository;
import com.datalinkx.dataserver.repository.DsTbRepository;
import com.datalinkx.dataserver.repository.JobLogRepository;
import com.datalinkx.dataserver.repository.JobRepository;
import com.datalinkx.dataserver.service.DtsJobService;
import com.datalinkx.messagehub.bean.form.ProducerAdapterForm;
import com.datalinkx.messagehub.service.MessageHubService;
import lombok.SneakyThrows;
import lombok.extern.log4j.Log4j2;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.ObjectUtils;

Context:
datalinkx-server/src/main/java/com/datalinkx/dataserver/service/impl/JobService.java
package com.datalinkx.dataserver.service.impl;

@Component
@Service
@Log4j2
public class JobService implements DtsJobService {
	private static final int FAILED = 3;
	private static final int SUCCESS = 2;

	@Autowired
	private JobRepository jobRepository;

	@Autowired
	DsService dsService;

	@Autowired
	DsRepository dsRepository;

	@Autowired
	DsTbRepository dsTbRepository;

	@Autowired
	JobLogRepository jobLogRepository;

	@Autowired
	JobClientApi jobClientApi;

	@Resource(name = "messageHubServiceImpl")
	MessageHubService messageHubService;

	@Transactional(rollbackFor = Exception.class)
	public String jobCreate(JobForm.JobCreateForm form) {
		this.validJobForm(form);
		String jobId = genKey("job");
		JobBean jobBean = new JobBean();
		jobBean.setJobId(jobId);

		jobBean.setReaderDsId(form.getFromDsId());
		jobBean.setWriterDsId(form.getToDsId());

		jobBean.setConfig(toJson(form.getFieldMappings()));
		jobBean.setFromTbId(getXtbId(form.getFromTbName(), form.getFromDsId()));
		jobBean.setToTbId(getXtbId(form.getToTbName(), form.getFromDsId()));
		jobBean.setStatus(MetaConstants.JobStatus.JOB_TABLE_CREATE);
		jobBean.setCrontab(form.getSchedulerConf());
		jobBean.setSyncMode(JsonUtils.toJson(form.getSyncMode()));

		// 创建 xxljob
		String xxlJobId = jobClientApi.add(jobId, form.getSchedulerConf(), DataTransJobParam.builder().jobId(jobId).build());

		jobBean.setXxlId(xxlJobId);
		jobRepository.save(jobBean);
		return jobId;
	}

	public String jobModify(JobForm.JobModifyForm form) {
		this.validJobForm(form);
		JobBean jobBean = jobRepository.findByJobId(form.getJobId()).orElseThrow(() -> new DatalinkXServerException(StatusCode.JOB_NOT_EXISTS, "job not exist"));
		jobBean.setReaderDsId(form.getFromDsId());
		jobBean.setWriterDsId(form.getToDsId());
		jobBean.setConfig(toJson(form.getFieldMappings()));
		jobBean.setFromTbId(getXtbId(form.getFromTbName(), form.getFromDsId()));
		jobBean.setToTbId(getXtbId(form.getToTbName(), form.getFromDsId()));
		jobBean.setCrontab(form.getSchedulerConf());
		jobBean.setSyncMode(JsonUtils.toJson(form.getSyncMode()));
		jobRepository.save(jobBean);
		return form.getJobId();
	}

	private void validJobForm(JobForm.JobCreateForm form) {
		DsBean fromDsBean = dsRepository.findByDsId(form.getFromDsId()).orElseThrow(() -> new DatalinkXServerException(StatusCode.DS_NOT_EXISTS, "来源数据源不存在"));
		DsBean toBean = dsRepository.findByDsId(form.getToDsId()).orElseThrow(() -> new DatalinkXServerException(StatusCode.DS_NOT_EXISTS, "目标数据源不存在"));

		if (MetaConstants.JobSyncMode.INCREMENT_MODE.equals(form.getSyncMode().getMode()) && ObjectUtils.isEmpty(form.getSyncMode().getIncreateField())) {
			throw new DatalinkXServerException(StatusCode.JOB_CONFIG_ERROR, "增量模式必须指定增量字段");
		}

		if (MetaConstants.JobSyncMode.INCREMENT_MODE.equals(form.getSyncMode().getMode())) {
			try {
				IDsReader dsReader = DsDriverFactory.getDsReader(dsService.getConnectId(fromDsBean));
				Boolean isIncremental = dsReader.judgeIncrementalField(fromDsBean.getDatabase(), fromDsBean.getSchema(), form.getFromTbName(), form.getSyncMode().getIncreateField());
				if (!isIncremental) {
					throw new DatalinkXServerException(StatusCode.JOB_CONFIG_ERROR, "增量字段必须是日期或数值类型");
				}
			} catch (Exception e) {

datalinkx-common/src/main/java/com/datalinkx/common/constants/MetaConstants.java
public final class MetaConstants {
    private MetaConstants() {
    }
    /**
     * 数据源类型管理
     */
    public static class DsType {
        // 数据源类型
        public static final Integer MYSQL = 1;
        public static final Integer ELASTICSEARCH = 2;
    }

    public static class JobStatus {
        public static final int JOB_TABLE_CREATE = 0;
        public static final int JOB_TABLE_SYNCING = 1;
        public static final int JOB_TABLE_NORMAL = 2;
        public static final int JOB_TABLE_ERROR = 3;
        public static final int JOB_TABLE_QUEUE = 4;
        public static final int JOB_TABLE_STOP = 5;

        public static final int JOB_STATUS_CREATE = 0;
        public static final int JOB_STATUS_SYNC = 1;
        public static final int JOB_STATUS_SUCCESS = 2;
        public static final int JOB_STATUS_ERROR = 3;
        public static final int JOB_STATUS_QUEUE = 4;
        public static final int JOB_STATUS_STOP = 5;

        public static final String SSE_JOB_STATUS = "jobList";
    }

    public static class JobSyncMode {
        public static final String INCREMENT_MODE = "increment";
        public static final String OVERWRITE_MODE = "overwrite";
    }

    public static class CommonConstant {
        public static final String TRACE_ID = "trace_id";
    }
}

datalinkx-server/src/main/java/com/datalinkx/dataserver/bean/vo/PageVo.java
@Data
@Builder
@NoArgsConstructor
@AllArgsConstructor
public class PageVo<T> {
	//当前查询的页码
	private Integer pageNo;
	//每页条数
	private Integer pageSize;
	//总数据量
	private Long total;

	private Integer totalPage;

	private T data;

}

datalinkx-common/src/main/java/com/datalinkx/common/utils/JsonUtils.java
public final class JsonUtils {
	private static final ObjectMapper OBJECT_MAPPER = new ObjectMapper();
	static {
		OBJECT_MAPPER.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
	}

	/**
	 * 防止反射调用构造器创建对象
	 */
	private JsonUtils() {
		throw new AssertionError();
	}

	/**
	 * 自定义日期反序列化处理类
	 * LocalDate
	 * jdk8 support
	 */
	public static class JsonLocalDateDeserializer extends JsonDeserializer<LocalDate> {
		@Override
		public LocalDate deserialize(JsonParser jsonParser, DeserializationContext deserializationContext) throws IOException {
			String str = jsonParser.getText().trim();
			return LocalDate.parse(str, DateTimeFormatter.ISO_DATE);
		}
	}

	/**
	 * 自定义日期序列化类
	 * LocalDate
	 * jdk8 support
	 */
	public static class JsonLocalDateSerializer extends JsonSerializer<LocalDate> {
		@Override
		public void serialize(LocalDate localDate, JsonGenerator jsonGenerator, SerializerProvider serializerProvider) throws IOException {
			String localdateStr = localDate.format(DateTimeFormatter.ISO_DATE);
			jsonGenerator.writeString(localdateStr);
		}
	}

	/**
	 * json数据转pojo
	 *
	 * @param jsonStr json字符串
	 * @param cls     映射类型
	 * @param <T>     推导类型
	 * @return 推导类型json对象
	 */
	public static <T> T toObject(String jsonStr, Class<T> cls) {
		T object = null;
		try {
			if (StringUtils.isEmpty(jsonStr)) {
				return cls.newInstance();
			}
			object = OBJECT_MAPPER.readValue(jsonStr, cls);
		} catch (Exception e) {
			throw new RuntimeException(e);
		}
		return object;
	}

	/**
	 * json数据转PojoList
	 *
	 * @param jsonArray json数据
	 * @param cls     类型
	 * @param <T>     推导类型
	 * @return pojoList
	 */
	public static <T> List<T> toList(String jsonArray, Class<T> cls) {
		List<T> pojoList = null;
		try {
			CollectionType listType = OBJECT_MAPPER.getTypeFactory().constructCollectionType(List.class, cls);
			pojoList = OBJECT_MAPPER.readValue(jsonArray, listType);
		} catch (IOException e) {
			throw new RuntimeException(e);
		}
		return pojoList;
	}

	/**
	 * pojo转json
	 *
	 * @param obj pojo
	 * @return json字符串
	 */
	public static String toJson(Object obj) {
		String jsonStr = "";
		try {
			jsonStr = OBJECT_MAPPER.writeValueAsString(obj);
		} catch (JsonProcessingException e) {
			throw new RuntimeException(e);
		}
		return jsonStr;
	}

	/**
	 * json转listMap
	 *
	 * @param jsonArray jsonArray字符串
	 * @return Listmap对象
	 */
	public static List<Map<String, Object>> toListMap(String jsonArray) {
		List<Map<String, Object>> convertedListMap = null;
		try {
			convertedListMap = OBJECT_MAPPER.readValue(jsonArray, new TypeReference<List<Map<String, Object>>>() {
			});
		} catch (IOException e) {
			throw new RuntimeException(e);
		}
		return convertedListMap;
	}

	/**
	 * json转map
	 *
	 * @param json json字符串
	 * @return map对象
	 */
	public static Map<Integer, Map<String, Object>> toInnerMap(String json) {
		Map<Integer, Map<String, Object>> convertedMap = null;
		try {
			convertedMap = OBJECT_MAPPER.readValue(json, new TypeReference<Map<Integer, Map<String, Object>>>() {
			});
		} catch (IOException e) {
			throw new RuntimeException(e);
		}
		return convertedMap;
	}

	/**
	 * json转map
	 *
	 * @param json json字符串
	 * @return map对象
	 */
	public static Map<String, Object> json2Map(String json) {
		Map<String, Object> convertedMap = null;
		try {
			convertedMap = OBJECT_MAPPER.readValue(json, new TypeReference<Map<String, Object>>() {
			});
		} catch (IOException e) {
			e.printStackTrace();
		}
		return convertedMap;
	}

	/**
	 * json转map
	 *
	 * @param json json字符串
	 * @return map对象
	 */
	public static Map<Integer, Map<String, Object>> json2MapMap(String json) {
		Map<Integer, Map<String, Object>> convertedMap = null;
		try {
			convertedMap = OBJECT_MAPPER.readValue(json, new TypeReference<Map<Integer, Map<String, Object>>>() {
			});
		} catch (IOException e) {
			e.printStackTrace();
		}
		return convertedMap;
	}

	/**
	 * listMap转json
	 *
	 * @param listMap listMap
	 * @return
	 */
	public static String listMap2JsonArray(List<Map<String, Object>> listMap) {
		String jsonStr = "";
		try {
			jsonStr = OBJECT_MAPPER.writeValueAsString(listMap);
		} catch (JsonProcessingException e) {
			throw new RuntimeException(e);
		}
		return jsonStr;
	}

	/**
	 * 将json转为JsonNode对象
	 * @param json
	 * @return
	 */
	public static JsonNode toJsonNode(String json) {
		JsonNode jsonNode = null;
		try {
			jsonNode = OBJECT_MAPPER.readTree(json);
		} catch (JsonProcessingException e) {
			throw new RuntimeException(e);
		}

		return jsonNode;
	}

	/**
	 * 获取 ObjectNode
	 * @return
	 */
	public static ObjectNode getObjectNode() {
		return OBJECT_MAPPER.createObjectNode();
	}

	/**
	 * 获取 ArrayNode
	 * @return
	 */
	public static ArrayNode getArrayNode() {
		return OBJECT_MAPPER.createArrayNode();
	}

	public static String map2Json(Map<String, Object> map) {
		String jsonStr = "";
		try {
			jsonStr = OBJECT_MAPPER.writeValueAsString(map);
		} catch (JsonProcessingException e) {
			e.printStackTrace();
		}
		return jsonStr;
	}

	public static String list2Json(List<?> list) {
		String jsonStr = "";
		try {
			jsonStr = OBJECT_MAPPER.writeValueAsString(list);
		} catch (JsonProcessingException e) {
			e.printStackTrace();
		}
		return jsonStr;
	}

	public static <T> List<T> json2List(String json) {
		List<T> convertedList = null;
		try {
			convertedList = OBJECT_MAPPER.readValue(json, new TypeReference<List<T>>() {
			});
		} catch (IOException e) {
			e.printStackTrace();
		}
		return convertedList;
	}
}

Answer: throw new DatalinkXServerException(StatusCode.JOB_CONFIG_ERROR, e.getMessage());

<think>
The method validJobForm validates job creation parameters. Inside the increment mode block, it tries to check the incremental field using a DsReader. If any exception occurs, the method should abort validation by throwing a DatalinkXServerException with an appropriate error code. The imports already include DatalinkXServerException and StatusCode, so the next line after the opening catch block should be a throw statement that wraps the caught exception.
</think>
throw new DatalinkXServerException(StatusCode.JOB_CONFIG_ERROR, e.getMessage());


Input:
import com.amazonaws.services.dynamodbv2.model.LockCurrentlyUnavailableException;
import com.amazonaws.services.dynamodbv2.model.LockNotGrantedException;
import com.amazonaws.services.dynamodbv2.util.LockClientUtils;
import momento.lock.client.LockItemUtils;
import momento.lock.client.LockStorage;
import momento.lock.client.MomentoDynamoDBLockClientOptions;
import momento.lock.client.MomentoLockClient;
import momento.lock.client.MomentoLockClientHeartbeatHandler;
import momento.lock.client.MomentoLockItem;
import momento.lock.client.NoopDynamoDbClient;
import momento.lock.client.model.MomentoClientException;
import momento.sdk.CacheClient;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import software.amazon.awssdk.core.exception.SdkClientException;
import java.io.Closeable;
import java.io.IOException;
import java.time.Duration;
import java.util.Objects;
import java.util.Optional;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ScheduledFuture;
import java.util.concurrent.ScheduledThreadPoolExecutor;
import java.util.concurrent.ThreadFactory;
import java.util.concurrent.TimeUnit;
import java.util.function.Function;
import java.util.stream.Stream;

Context:
src/main/java/com/amazonaws/services/dynamodbv2/MomentoDynamoDBLockClient.java
/*
 * This Java source file was generated by the Gradle 'init' task.
 */
package com.amazonaws.services.dynamodbv2;

/**
 *

 * Provides a simple library for using DynamoDB's consistent read/write feature to use it for managing distributed locks.
 *

 *

 * In order to use this library, the client must create a cache in Momento, although the library provides a convenience method
 * for creating that cache (createLockCache.)
 *

 *

 * Here is some example code for how to use the lock client for leader election to work on a resource called "host-2" (it
 * assumes you already have a Momento cache named lockCache, which can be created with the
 * {@code createLockCache} helper method):
 *

 *

 * {@code
 *  AmazonDynamoDBLockClient lockClient = new MomentoDynamoDBLockClient(
 *      MomentoDynamoDBLockClientOptions.builder(dynamoDBClient, "lockTable").build();
 *  try {
 *      // Attempt to acquire the lock indefinitely, polling Momento every 2 seconds for the lock
 *      LockItem lockItem = lockClient.acquireLock(
 *          AcquireLockOptions.builder("host-2")
 *              .withRefreshPeriod(120L)
 *              .withAdditionalTimeToWaitForLock(Long.MAX_VALUE / 2L)
 *              .withTimeUnit(TimeUnit.MILLISECONDS)
 *              .build());
 *      if (!lockItem.isExpired()) {
 *          // do business logic, you can call lockItem.isExpired() to periodically check to make sure you still have the lock
 *          // the background thread will keep the lock valid for you by sending heartbeats (default is every 5 seconds)
 *      }
 *  } catch (LockNotGrantedException x) {
 *      // Should only be thrown if the lock could not be acquired for Long.MAX_VALUE / 2L milliseconds.
 *  }
 * }
 *

 */
public class MomentoDynamoDBLockClient extends AmazonDynamoDBLockClient implements Closeable  {
    private static final Log logger = LogFactory.getLog(MomentoDynamoDBLockClient.class);

    private final String lockCacheName;
    private final CacheClient cacheClient;
    private static final long DEFAULT_BUFFER_MS = 1000;
    private static final int TTL_GRACE_MILLIS = 200;

    private final long leaseDurationMillis;
    private final long heartbeatPeriodInMilliseconds;
    private final String owner;
    private final ConcurrentHashMap<String, Thread> sessionMonitors;
    private final LockStorage lockStorage;
    private final Function<String, ThreadFactory> namedThreadCreator;

    private ScheduledExecutorService heartbeatExecutor;
    private MomentoLockClientHeartbeatHandler heartbeatHandler;

    private final MomentoLockClient momentoLockClient;
    private final Boolean holdLockOnServiceUnavailable;

    private final ScheduledExecutorService executorService;

src/main/java/momento/lock/client/model/MomentoClientException.java
public class MomentoClientException extends RuntimeException {
    public MomentoClientException(String message) {
        super(message);
    }

    public MomentoClientException(String message, Throwable t) {
        super(message, t);
    }
}

src/main/java/momento/lock/client/MomentoLockClient.java
public class MomentoLockClient {

    private final CacheClient client;
    private final String cacheName;
    private static final Duration MOMENTO_TIMEOUT = Duration.ofSeconds(10);

    public MomentoLockClient(final CacheClient client,
                             final String cacheName) {
        this.client = client;
        this.cacheName = cacheName;
    }

    public Optional<MomentoLockItem> getLockFromMomento(final String cacheKey) {
        try {
            final GetResponse getResponse = this.client.get(this.cacheName, cacheKey)
                    .get(MOMENTO_TIMEOUT.getSeconds(), TimeUnit.SECONDS);
            if (getResponse instanceof GetResponse.Hit) {
                final MomentoLockItem momentoLockItem = LockItemUtils.deserialize(((GetResponse.Hit) getResponse).valueByteArray());
                return Optional.of(momentoLockItem);
            }
        } catch (TimeoutException e) {
            throw new MomentoClientException("Exceeded client side timeout of 10 seconds while retrieving from Momento " +
                    "for cache key " + cacheKey);
        } catch (InterruptedException | ExecutionException e) {
            throw new MomentoClientException("Caught unexpected exception while retrieving from Momento " +
                    "for cache key " + cacheKey);
        }
        return Optional.empty();
    }

    public boolean acquireLockInMomento(final MomentoLockItem lockItem) {

        try {
            final SetIfNotExistsResponse response = this.client.setIfNotExists(this.cacheName, lockItem.getCacheKey(),
                    LockItemUtils.serialize(lockItem)).get(MOMENTO_TIMEOUT.getSeconds(), TimeUnit.SECONDS);

            if (response instanceof SetIfNotExistsResponse.Stored) {
                return true;
            } else if (response instanceof SetIfNotExistsResponse.Error) {
                throw new MomentoClientException(((SetIfNotExistsResponse.Error) response).getMessage(),
                        ((SetIfNotExistsResponse.Error) response).getCause());
            }
        } catch (TimeoutException e) {
            throw new MomentoClientException("Exceeded client side timeout of 10 seconds while retrieving from Momento " +
                    "for cache key " + lockItem.getCacheKey());
        } catch (InterruptedException | ExecutionException e) {
            throw new MomentoClientException("Caught unexpected exception while retrieving from Momento " +
                    "for cache key " + lockItem.getCacheKey());
        }

        return false;
    }

    public boolean deleteLockFromMomento(final MomentoLockItem lockItem) {

        try {
            final DeleteResponse response = this.client.delete(this.cacheName, lockItem.getCacheKey())
                    .get(MOMENTO_TIMEOUT.getSeconds(), TimeUnit.SECONDS);

            if (response instanceof DeleteResponse.Success) {
                return true;
            } else if (response instanceof DeleteResponse.Error) {
                throw new MomentoClientException(((DeleteResponse.Error) response).getMessage(),
                        ((DeleteResponse.Error) response).getCause());
            }
        } catch (TimeoutException e) {
            throw new MomentoClientException("Exceeded client side timeout of 10 seconds while retrieving from Momento " +
                    "for cache key " + lockItem.getCacheKey());
        } catch (InterruptedException | ExecutionException e) {
            throw new MomentoClientException("Caught unexpected exception while retrieving from Momento " +
                    "for cache key " + lockItem.getCacheKey());
        }

        return false;
    }

    public Long getLockRemainingTtl(final MomentoLockItem momentoLockItem) {

        try {
            final ItemGetTtlResponse itemGetTtlResponse =
                    this.client.itemGetTtl(cacheName, momentoLockItem.getCacheKey())
                            .get(MOMENTO_TIMEOUT.getSeconds(), TimeUnit.SECONDS);

            // check remaining ttl more than window; this gives another item exists semantics
            if (itemGetTtlResponse instanceof ItemGetTtlResponse.Hit) {
                return ((ItemGetTtlResponse.Hit) itemGetTtlResponse).remainingTtlMillis();
            } else if (itemGetTtlResponse instanceof ItemGetTtlResponse.Error) {
                throw new MomentoClientException(((ItemGetTtlResponse.Error) itemGetTtlResponse).getMessage(),
                        ((ItemGetTtlResponse.Error) itemGetTtlResponse).getCause());
            }

        } catch (TimeoutException e) {
            throw new MomentoClientException("Exceeded client side timeout of 10 seconds while retrieving from Momento " +
                    "for cache key " + momentoLockItem.getCacheKey());
        } catch (InterruptedException | ExecutionException e) {
            throw new MomentoClientException("Caught unexpected exception while retrieving from Momento " +
                    "for cache key " + momentoLockItem.getCacheKey());
        }

        return null;
    }

    public boolean createLockCache(final String cacheName) {
        try {
            final CacheCreateResponse createResponse = this.client.createCache(cacheName)
                    .get(MOMENTO_TIMEOUT.getSeconds(), TimeUnit.SECONDS);

            if (createResponse instanceof CacheCreateResponse.Error) {
                return false;
            }
        } catch (TimeoutException e) {
            throw new MomentoClientException("Exceeded client side timeout of 10 seconds while creating cache in Momento " +
                    "for cache name " + cacheName);
        } catch (InterruptedException | ExecutionException e) {
            throw new MomentoClientException("Caught unexpected exception while while creating cache in Momento " +
                    "for cache name " + cacheName);
        }

        return true;
    }

    public boolean lockCacheExists(final String cacheName) {
        try {
            final CacheListResponse response = this.client.listCaches()
                    .get(MOMENTO_TIMEOUT.getSeconds(), TimeUnit.SECONDS);

            if (response instanceof CacheListResponse.Success) {
                List<CacheInfo> cacheInfoList = ((CacheListResponse.Success) response).getCaches();
                return cacheInfoList.stream().map(CacheInfo::name).anyMatch(name -> name.equals(cacheName));
            } else if (response instanceof CacheListResponse.Error) {
                throw new MomentoClientException(((CacheListResponse.Error) response).getMessage(),
                        ((CacheListResponse.Error) response).getCause());
            }
        } catch (TimeoutException e) {
            throw new MomentoClientException("Exceeded client side timeout of 10 seconds while checking cache existence in Momento " +
                    "for cache name " + cacheName);
        } catch (InterruptedException | ExecutionException e) {
            throw new MomentoClientException("Caught unexpected exception while while checking cache existence in Momento " +
                    "for cache name " + cacheName);
        }

        return false;
    }
}

Answer: public MomentoDynamoDBLockClient(final MomentoDynamoDBLockClientOptions lockClientOptions) {

<think>
After the import statements, the next logical element in a Java class is typically a constructor or method definition. The class MomentoDynamoDBLockClient extends AmazonDynamoDBLockClient and is used via a builder pattern shown in the documentation comment, which creates an instance with MomentoDynamoDBLockClientOptions. Therefore, the next line should be the public constructor that accepts a MomentoDynamoDBLockClientOptions argument.
</think>
public MomentoDynamoDBLockClient(MomentoDynamoDBLockClientOptions options) {


Input:
from asgiref.sync import async_to_sync
from django.contrib.contenttypes.models import ContentType
from django.db.models.deletion import ProtectedError
from django.views.generic import TemplateView
from django.views.decorators.cache import never_cache
from dramatiq_abort import abort
from rest_framework import status
from rest_framework.exceptions import APIException
from rest_framework.exceptions import NotFound
from rest_framework.exceptions import ValidationError as DRFValidationError
from rest_framework.decorators import action
from rest_framework.permissions import IsAuthenticated
from rest_framework.response import Response
from slugify import slugify
from .bootstrap import fetch_and_store_block, update_blockchain_progress
from .exceptions import UpdateBlockchainProgressError
from .helpers import get_filter_backends, load_data_from_redis
from .filters import (
    BlockFilter,
    CustomBlockSearchFilter,
    NodeFilter,
    NodeGroupFilter,
)
from .mixins import CustomModelViewSet
from .models import Blockchain, Block, Reorg, Node, NodeGroup, DramatiqTask
from .serializers import (
    BlockchainSerializer,
    BlockchainExtendedSerializer,
    BlockSerializer,
    BlockDetailSerializer,
    NodeSerializer,
    NodeGroupSerializer,
    DramatiqTaskSerializer,
)
from .tasks import bootstrap_blockchain, delete_blockchain
import channels
import logging
import pytz

Context:
backend/api/views.py

logger = logging.getLogger(__name__)

# Serve Vue Application
index_view = never_cache(TemplateView.as_view(template_name='index.html'))

class NodeGroupViewSet(CustomModelViewSet):
    """API endpoint for NodeGroup."""
    queryset = NodeGroup.objects.all()
    filterset_class = NodeGroupFilter
    serializer_class = NodeGroupSerializer
    lookup_field = 'slug'
    permission_classes = [IsAuthenticated]

    def create(self, request, *args, **kwargs):
        slug = request.data.get('slug')
        if not slug:
            request.data['slug'] = slugify(request.data['name'], to_lower=True)
        return super().create(request, *args, **kwargs)

    def destroy(self, request, *args, **kwargs):
        try:
            return super().destroy(request, *args, **kwargs)
        except ProtectedError as e:
            raise DRFValidationError(
                detail='Node group is related to nodes, delete them first')

class NodeViewSet(CustomModelViewSet):
    """API endpoint for Node."""
    queryset = Node.objects.all()
    filterset_class = NodeFilter
    serializer_class = NodeSerializer
    # currently all node views require authentication
    permission_classes = [IsAuthenticated]
    lookup_field = 'slug'

    def create(self, request, *args, **kwargs):
        slug = request.data.get('slug')
        if not slug:
            request.data['slug'] = slugify(request.data['name'], to_lower=True)
        request.data['group'] = NodeGroup.objects.get(slug=request.data['group']).pk
        return super().create(request, *args, **kwargs)

    def update(self, request, *args, **kwargs):
        # NOTE: super().partial_update calls update(..., partial=True)
        if not kwargs.get('partial'):
            # we don't allow full updates - aka PUT
            raise DRFPermissionDenied()
        return super().update(request, *args, **kwargs)

    def partial_update(self, request, slug=None):
        request.data['group'] = NodeGroup.objects.get(slug=request.data['group']).pk
        return super().partial_update(request, slug=slug)

    @action(detail=True, methods=['get'])
    def reachable(self, request, slug=None):
        node = self.get_object()
        try:
            res = node.is_reachable()
        except Exception as e:
            logger.exception('Unreachable node')
            res = False
        return Response(res, status=status.HTTP_200_OK)

    def destroy(self, request, *args, **kwargs):
        try:
            return super().destroy(request, *args, **kwargs)
        except ProtectedError as e:
            raise DRFValidationError(
                detail='Node is related to blockchains, delete them first')

class BlockchainViewSet(CustomModelViewSet):
    """API endpoint for Blockchain."""

backend/api/bootstrap.py
def update_blockchain_progress(blockchain):
    try:
        start_height, end_height = blockchain.get_bootstrap_heights()
    except Exception as e:
        logger.warning(
            'Failed to get bootstrap heights',
            extra={ 'blockchain': blockchain.slug },
        )
        raise UpdateBlockchainProgressError(blockchain.slug)
    expected_heights = set(range(start_height, end_height + 1))
    existing_heights = set(list(
        blockchain.blocks\
            .filter(reorg__isnull=True)\
            .values_list('height', flat=True)
    ))
    missing_heights = expected_heights - existing_heights
    update_load_progress(
        blockchain,
        len(missing_heights),
        end_height - start_height + 1,
        1,
        1,
        2,
        verbose=True
    )

backend/api/helpers.py
def get_filter_backends(replacements):
    """
    Returns a tuple of filter backends where default ones, from DefaultMixin,
    are replaced with the given replacements.

    Args:
        replacements: dict where key is an existing filter backend class's
        __name__ and value is its replacement filter backend class
    """
    current_filters = DefaultMixin.filter_backends
    return tuple([
        filter if filter.__name__ not in replacements else replacements[filter.__name__]
        for filter in list(current_filters)
    ])

backend/api/serializers.py
class DramatiqTaskSerializer(serializers.ModelSerializer):
    content_object = serializers.SerializerMethodField()

    class Meta:
        model = DramatiqTask
        fields = (
            'id',
            'message_id',
            'type',
            'status',
            'failure_reason',
            'content_object',
        )

    def get_content_object(self, task):
        from .serializers import BlockchainSerializer
        serializer_mapper = {
            'Blockchain': BlockchainSerializer,
        }
        klass = task.content_object.__class__
        return {
            'model': klass._meta.model_name,
            'data': serializer_mapper[klass.__name__](task.content_object).data,
        }

backend/api/serializers.py
class BlockchainSerializer(serializers.ModelSerializer):
    node = serializers.PrimaryKeyRelatedField(queryset=Node.objects.all(), write_only=True)

    class Meta:
        model = Blockchain
        fields = ('name', 'slug', 'default', 'node', 'load_progress', 'fetch_price')

backend/api/tasks.py
@dramatiq.actor(max_retries=0, time_limit=float("inf"))
def delete_blockchain(blockchain_slug):
    # import here to avoid cyclic import
    from .models import Blockchain
    Blockchain.objects.get(slug=blockchain_slug).delete()
    async_to_sync(get_channel_layer().group_send)(
        'admin_group',
        {
            'type': 'blockchain_deleted',
            'message': {
                'slug': blockchain_slug,
            },
        }
    )

backend/api/serializers.py
class BlockchainExtendedSerializer(serializers.ModelSerializer):
    tasks = serializers.SerializerMethodField()

    class Meta:
        model = Blockchain
        fields = ('name', 'slug', 'node', 'default', 'load_progress', 'fetch_price', 'tasks')

    def to_representation(self, obj):
        self.fields['node'] = NodeSerializer()
        return super().to_representation(obj)

    def get_tasks(self, blockchain):
        content_type = ContentType.objects.get_for_model(blockchain)
        tasks = DramatiqTask.objects.filter(
            content_type=content_type,
            object_id=blockchain.id,
        )
        return DramatiqTaskSimpleSerializer(tasks, many=True).data

backend/api/models.py
class NodeGroup(models.Model):
    """
    NodeGroup represents a group of nodes. These nodes should be on the same
    network.:
    """
    id = models.BigAutoField(primary_key=True)
    # name is probably mainnet, testnet or smth similar
    name = models.CharField(max_length=255, unique=True)
    # by default that's slug of the name
    slug = models.SlugField(max_length=255, unique=True)

    def __str__(self):
        return self.name

    def save(self, *args, **kwargs):
        if not self.slug:
            self.slug = slugify(self.name, to_lower=True)
        else:
            self.slug = self.slug.lower()
        self.full_clean()
        return super().save(*args, **kwargs)

backend/api/models.py
class Reorg(TimeStampedModel):
    id = models.BigAutoField(primary_key=True)
    blockchain = models.ForeignKey(
        Blockchain, related_name='reorgs', on_delete=models.CASCADE)
    # start_reorg_block and end_reorg_block define starting and ending block,
    # which were reorged
    start_reorg_block = models.ForeignKey(
        Block, related_name='start_reorgs', on_delete=models.CASCADE)
    end_reorg_block = models.ForeignKey(
        Block, related_name='end_reorgs', on_delete=models.CASCADE)
    # start_main_block defines starting block which is the new start of the main
    # chain - the block that replaced start_reorg_block. We usually don't know
    # which the ending block is when we spot the reorg, so we don't store it
    # (we don't even have it in DB at that time yet since we usually get them
    # incrementally in the order they're accepted).
    start_main_block = models.ForeignKey(
        Block, related_name='start_mains', on_delete=models.CASCADE)

    def __str__(self):
        return '{}: start: {}, end: {}'.format(
            self.blockchain.slug, self.start_reorg_block, self.end_reorg_block)

backend/api/filters.py
class CustomBlockSearchFilter(DRFfilters.SearchFilter):
    """
    Alongside the given search_fields this filter filters also by:
    -  keyword 'reorgs' --> return only blocks where reorgs happened
    -  ['inputs', 'outputs', 'kernels'] ['=', '<', '>', '<=', '>='] [value] -->
       return only blocks matching this computation, eg: 'inputs > 2'
    You cannot combine different types of search (eg. 'reorgs' + 'computation')
    """

    def filter_queryset(self, request, queryset, view):
        queryset = super().filter_queryset(request, queryset, view)
        blockchain_slug = view.kwargs['blockchain_slug']
        original_search_terms = self.get_search_terms(request)
        search_terms = self._get_normalized_search_terms(original_search_terms)
        if len(search_terms) == 0:
            # searches:
            # - height --> add filter reorg=None
            # - hash --> nothing to add
            # - outputhash --> add filter reorg=None
            # - block-detail --> nothing to add
            # - block-list --> add filter reorg=None
            if len(original_search_terms) > 1:
                raise APIException('Too many standard search terms')
            if not original_search_terms:
                # it's either an unfiltered block-list or block-detail
                if view.action == 'list':
                    queryset = queryset.filter(reorg=None)
            else:
                # there's only 1 original search term, figure out which one
                if len(original_search_terms[0]) != 64:
                    # it's not block hash but either block height or output hash
                    # in both cases we need to filter out reorgs
                    queryset = queryset.filter(reorg=None)
            return queryset
        searched_types = set(map(lambda x: x['type'], search_terms))
        if len(searched_types) > 1:
            raise APIException('Cannot combine different types of searches')
        if searched_types == { 'reorgs' }:
            return self._get_reorgs_qs(blockchain_slug)
        elif searched_types == { 'computation' }:
            return self._get_computations_qs(search_terms, blockchain_slug)
        elif searched_types == { 'hash' }:
            return self._get_hash_qs(search_terms[0]['value'], blockchain_slug, queryset)
        elif searched_types == { 'height' }:
            return self._get_height_qs(search_terms[0]['value'], blockchain_slug)
        elif searched_types == { 'kernel_or_output' }:
            return self._get_kernel_or_output_qs(
                search_terms[0]['value'], blockchain_slug)
        else:
            logger.exception(
                'Invalid search terms',
                exc_info=e,
                extra={'search_terms': search_terms}
            )
            raise APIException('Invalid search terms')

    def _get_normalized_search_terms(self, search_terms):
        """
        Search terms of format ['outputs>1'] are not supported. Instead, the
        operators should be surrounded by spaces, eg. ['outputs', '>', '1'].
        Supported operators are ['=', '>', '<', '<=', '>=']
        """
        supported_operators = ['=', '>', '<', '<=', '>=']
        normalized_terms = []
        i = 0
        while i <= len(search_terms) - 1:
            if isinstance(search_terms[i], str) and search_terms[i].lower() in ['inputs', 'outputs', 'kernels']:
                operator = search_terms[i+1]
                if operator not in supported_operators:
                    raise APIException('Invalid search operator')
                value = int(search_terms[i+2])
                if value < 0:
                    raise APIException('Invalid search computation')
                normalized_terms.append({
                    'type': 'computation',
                    'source': search_terms[i],
                    'op': operator,
                    'value': value,
                })
                i += 3
            elif isinstance(search_terms[i], str) and search_terms[i].lower() == 'reorgs':
                normalized_terms.append({ 'type': 'reorgs' })
                i += 1
            elif len(search_terms[i]) == 64:
                # hash
                normalized_terms.append({
                    'type': 'hash',
                    'value': search_terms[i],
                })
                i += 1
            elif len(search_terms[i]) == 66:
                # kernel excess or output commitment
                normalized_terms.append({
                    'type': 'kernel_or_output',
                    'value': search_terms[i],
                })
                i += 1
            else:
                try:
                    value = int(search_terms[i])
                except ValueError:
                    value = None
                if value >= 0:
                    normalized_terms.append({
                        'type': 'height',
                        'value': value,
                    })
                    i += 1
                else:
                    # term which is not for this custom search, eg. block hash
                    i += 1
        return normalized_terms

    def _get_reorgs_qs(self, blockchain_slug):
        # NOTE: we first filter, then calculate reorg_len on filtered data and
        # then filter on annotated data that we've calculated
        reorg_heights = list(Reorg.objects\
            .select_related('start_main_block')\
            .filter(
                blockchain__slug=blockchain_slug,
                start_main_block__reorg=None,
            )\
            .annotate(reorg_len=F('end_reorg_block__height') - F('start_reorg_block__height') + 1)\
            .filter(reorg_len__gte=settings.MIN_REORG_LEN)\
            .values_list('start_main_block__height', flat=True)
        )
        queryset = Block.objects\
            .filter(
                blockchain__slug=blockchain_slug,
                reorg=None,
                height__in=reorg_heights,
            )\
            .order_by('-height')
        return queryset

    def _get_hash_qs(self, hash, blockchain_slug, queryset):
        return queryset.filter(
            blockchain__slug=blockchain_slug,
            hash=hash,
        )

    def _get_height_qs(self, height, blockchain_slug):
        return Block.objects.filter(
            blockchain__slug=blockchain_slug,
            height=height,
        )

    def _get_kernel_or_output_qs(self, kernel_or_output, blockchain_slug):
        kernel = Kernel.objects.filter(
            excess=kernel_or_output,
            block__blockchain__slug=blockchain_slug,
        ).first()
        if kernel:
            return Block.objects.filter(hash=kernel.block.hash)
        output = Output.objects.filter(
            commitment=kernel_or_output,
            block__blockchain__slug=blockchain_slug,
        ).first()
        if output:
            return Block.objects.filter(hash=output.block.hash)
        return Block.objects.none()

    def _get_computations_qs(self, search_terms, blockchain_slug):
        operator_mapping = {
            '=': '',
            '>': '__gt',
            '<': '__lt',
            '<=': '__lte',
            '>=': '__gte',
        }
        possible_sources = ['inputs', 'outputs', 'kernels']
        searched_sources = set(map(lambda x: x['source'], search_terms))
        op_searched_types = set(possible_sources) & set(searched_sources)
        op_qs = Blockchain.objects.get(slug=blockchain_slug).blocks.all()
        for search_term in search_terms:
            filters = {
                'blockchain__slug': blockchain_slug,
                'reorg': None,
            }
            op_map = operator_mapping[search_term['op']]
            filters[f'nr_{search_term["source"]}{op_map}'] = search_term['value']
            op_qs = op_qs.filter(**filters).order_by('-height')
        return op_qs

Answer: queryset = Blockchain.objects.all()

<think>
The file defines a BlockchainViewSet class earlier with only a docstring. After the import block, the next logical line is to start filling in that class's attributes. Following the pattern of other viewsets, the first attribute should be the queryset for the viewset, i.e., all Blockchain objects.
</think>
queryset = Blockchain.objects.all()


Input:
import random
import copy
import sys
import os
import bitsandbytes as bnb
import torch.nn as nn
import transformers
import torch
from macro_gpt.ft_gpt.config_macrogpt_1b3_float32 import CUDA_VISIBLE_DEVICES, USE_TORCH, CPU_NUMS  # from config
from transformers.models.auto.modeling_auto import MODEL_FOR_CAUSAL_LM_MAPPING_NAMES
from peft import (get_peft_model_state_dict, get_peft_model, LoraConfig)
from transformers import AutoModelForCausalLM, AutoTokenizer
from transformers.modeling_utils import unwrap_model
from tensorboardX import SummaryWriter
from datasets import load_dataset
from macro_gpt.models.llama.modeling_llama import LlamaForCausalLM as LLMForCausalLM
from macro_gpt.models.llama.tokenization_llama import LlamaTokenizer as LLMTokenizer
from macro_gpt.models.llama.modeling_llama import LlamaConfig as LLMConfig
from macro_gpt.ft_gpt.config_macrogpt_1b3_float32 import PATH_MODEL_PRETRAIN, DATA_PATH, MODEL_SAVE_DIR, REPO_ID
from macro_gpt.ft_gpt.config_macrogpt_1b3_float32 import MICRO_BATCH_SIZE, BATCH_SIZE, GRADIENT_ACCUMULATION_STEPS
from macro_gpt.ft_gpt.config_macrogpt_1b3_float32 import LEARNING_RATE, EPOCHS, SAVE_STEPS, VAL_SET_SIZE, TARGET_MODULES
from macro_gpt.ft_gpt.config_macrogpt_1b3_float32 import IS_PARALLELIZABLE, MODEL_PARALLEL, USE_CACHE
from macro_gpt.ft_gpt.config_macrogpt_1b3_float32 import MAX_LENGTH_Q, MAX_LENGTH_A, MAX_LENGTH_QA
from macro_gpt.ft_gpt.config_macrogpt_1b3_float32 import LORA_DROPOUT, LORA_ALPHA, LORA_R
from macro_gpt.ft_gpt.config_macrogpt_1b3_float32 import PATH_MODEL_CONFIG, PATH_TOKENIZER_PRETRAIN

Context:
macro_gpt/ft_gpt/train.pt.py
# !/usr/bin/python
# -*- coding: utf-8 -*-
# @time    : 2023/3/5 21:04
# @author  : Mo
# @function: macro-gpt

path_root = os.path.abspath(os.path.join(os.path.dirname(__file__), "../.."))
sys.path.append(path_root)
os.environ["PYTORCH_CUDA_ALLOC_CONF"] = "max_split_size_mb:3072"

macro_gpt/ft_gpt/config_macrogpt_1b3_float32.py
MODEL_PARALLEL = False

macro_gpt/ft_gpt/config_macrogpt_1b3_float32.py
LORA_DROPOUT = 0.05

macro_gpt/ft_gpt/config_macrogpt_1b3_float32.py
MODEL_SAVE_DIR = "model_macrogpt_1b3_float32"

macro_gpt/ft_gpt/config_macrogpt_1b3_float32.py
TARGET_MODULES = ["query_key_value"]

macro_gpt/ft_gpt/config_macrogpt_1b3_float32.py
CPU_NUMS = "9"

macro_gpt/ft_gpt/config_macrogpt_1b3_float32.py
MAX_LENGTH_Q = 1024 - 2  # default=128 - 2

macro_gpt/ft_gpt/config_macrogpt_1b3_float32.py
PATH_TOKENIZER_PRETRAIN = REPO_ID or "./macrogpt.model"

macro_gpt/ft_gpt/config_macrogpt_1b3_float32.py
MICRO_BATCH_SIZE = 4  # default=4  # this could actually be 5 but i like powers of 2

macro_gpt/ft_gpt/config_macrogpt_1b3_float32.py
MAX_LENGTH_QA = MAX_LENGTH_Q + MAX_LENGTH_A + 4

macro_gpt/ft_gpt/config_macrogpt_1b3_float32.py
LORA_R = 8

macro_gpt/ft_gpt/config_macrogpt_1b3_float32.py
LORA_ALPHA = 16

macro_gpt/ft_gpt/config_macrogpt_1b3_float32.py
MAX_LENGTH_A = 1024 - 2  # default=128 - 2

macro_gpt/ft_gpt/config_macrogpt_1b3_float32.py
CUDA_VISIBLE_DEVICES = "0"

macro_gpt/ft_gpt/config_macrogpt_1b3_float32.py
SAVE_STEPS = 384

macro_gpt/ft_gpt/config_macrogpt_1b3_float32.py
USE_CACHE = False

macro_gpt/ft_gpt/config_macrogpt_1b3_float32.py
LEARNING_RATE = 3e-4  # default=3e-4  # the Karpathy constant

macro_gpt/ft_gpt/config_macrogpt_1b3_float32.py
PATH_MODEL_PRETRAIN = ""

macro_gpt/ft_gpt/config_macrogpt_1b3_float32.py
BATCH_SIZE = 128

macro_gpt/models/llama/modeling_llama.py
class LlamaForCausalLM(LlamaPreTrainedModel):
    _tied_weights_keys = ["lm_head.weight"]

    def __init__(self, config):
        super().__init__(config)
        self.model = LlamaModel(config)
        self.vocab_size = config.vocab_size
        self.lm_head = nn.Linear(config.hidden_size, config.vocab_size, bias=False)
        # Initialize weights and apply final processing
        self.post_init()

    def get_input_embeddings(self):
        return self.model.embed_tokens

    def set_input_embeddings(self, value):
        self.model.embed_tokens = value

    def get_output_embeddings(self):
        return self.lm_head

    def set_output_embeddings(self, new_embeddings):
        self.lm_head = new_embeddings

    def set_decoder(self, decoder):
        self.model = decoder

    def get_decoder(self):
        return self.model

    @add_start_docstrings_to_model_forward(LLAMA_INPUTS_DOCSTRING)
    @replace_return_docstrings(output_type=CausalLMOutputWithPast, config_class=_CONFIG_FOR_DOC)
    def forward(
        self,
        input_ids: torch.LongTensor = None,
        attention_mask: Optional[torch.Tensor] = None,
        position_ids: Optional[torch.LongTensor] = None,
        past_key_values: Optional[List[torch.FloatTensor]] = None,
        inputs_embeds: Optional[torch.FloatTensor] = None,
        labels: Optional[torch.LongTensor] = None,
        use_cache: Optional[bool] = None,
        output_attentions: Optional[bool] = None,
        output_hidden_states: Optional[bool] = None,
        return_dict: Optional[bool] = None,
    ) -> Union[Tuple, CausalLMOutputWithPast]:
        r"""
        Args:
            labels (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*):
                Labels for computing the masked language modeling loss. Indices should either be in `[0, ...,
                config.vocab_size]` or -100 (see `input_ids` docstring). Tokens with indices set to `-100` are ignored
                (masked), the loss is only computed for the tokens with labels in `[0, ..., config.vocab_size]`.

        Returns:

        Example:

        ```python
        >>> from transformers import AutoTokenizer, LlamaForCausalLM

        >>> model = LlamaForCausalLM.from_pretrained(PATH_TO_CONVERTED_WEIGHTS)
        >>> tokenizer = AutoTokenizer.from_pretrained(PATH_TO_CONVERTED_TOKENIZER)

        >>> prompt = "Hey, are you conscious? Can you talk to me?"
        >>> inputs = tokenizer(prompt, return_tensors="pt")

        >>> # Generate
        >>> generate_ids = model.generate(inputs.input_ids, max_length=30)
        >>> tokenizer.batch_decode(generate_ids, skip_special_tokens=True, clean_up_tokenization_spaces=False)[0]
        "Hey, are you conscious? Can you talk to me?\nI'm not conscious, but I can talk to you."
        ```"""

        output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions
        output_hidden_states = (
            output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
        )
        return_dict = return_dict if return_dict is not None else self.config.use_return_dict

        # decoder outputs consists of (dec_features, layer_state, dec_hidden, dec_attn)
        outputs = self.model(
            input_ids=input_ids,
            attention_mask=attention_mask,
            position_ids=position_ids,
            past_key_values=past_key_values,
            inputs_embeds=inputs_embeds,
            use_cache=use_cache,
            output_attentions=output_attentions,
            output_hidden_states=output_hidden_states,
            return_dict=return_dict,
        )

        hidden_states = outputs[0]
        if self.config.pretraining_tp > 1:
            lm_head_slices = self.lm_head.weight.split(self.vocab_size // self.config.pretraining_tp, dim=0)
            logits = [F.linear(hidden_states, lm_head_slices[i]) for i in range(self.config.pretraining_tp)]
            logits = torch.cat(logits, dim=-1)
        else:
            # logits = self.lm_head(hidden_states)
            logits = self.lm_head(hidden_states.to(self.lm_head.weight.dtype))
        logits = logits.float()

        loss = None
        if labels is not None:
            # Shift so that tokens < n predict n
            shift_logits = logits[..., :-1, :].contiguous()
            shift_labels = labels[..., 1:].contiguous()
            # Flatten the tokens
            loss_fct = CrossEntropyLoss()
            shift_logits = shift_logits.view(-1, self.config.vocab_size)
            shift_labels = shift_labels.view(-1)
            # Enable model parallelism
            shift_labels = shift_labels.to(shift_logits.device)
            loss = loss_fct(shift_logits, shift_labels)

        if not return_dict:
            output = (logits,) + outputs[1:]
            return (loss,) + output if loss is not None else output

        return CausalLMOutputWithPast(
            loss=loss,
            logits=logits,
            past_key_values=outputs.past_key_values,
            hidden_states=outputs.hidden_states,
            attentions=outputs.attentions,
        )

    def prepare_inputs_for_generation(
        self, input_ids, past_key_values=None, attention_mask=None, inputs_embeds=None, **kwargs
    ):
        if past_key_values is not None:
            past_length = past_key_values[0][0].shape[2]

            # Some generation methods already pass only the last input ID
            if input_ids.shape[1] > past_length:
                remove_prefix_length = past_length
            else:
                # Default to old behavior: keep only final ID
                remove_prefix_length = input_ids.shape[1] - 1

            input_ids = input_ids[:, remove_prefix_length:]

        position_ids = kwargs.get("position_ids", None)
        if attention_mask is not None and position_ids is None:
            # create position_ids on the fly for batch generation
            position_ids = attention_mask.long().cumsum(-1) - 1
            position_ids.masked_fill_(attention_mask == 0, 1)
            if past_key_values:
                position_ids = position_ids[:, -input_ids.shape[1] :]

        # if `inputs_embeds` are passed, we only want to use them in the 1st generation step
        if inputs_embeds is not None and past_key_values is None:
            model_inputs = {"inputs_embeds": inputs_embeds}
        else:
            model_inputs = {"input_ids": input_ids}

        model_inputs.update(
            {
                "position_ids": position_ids,
                "past_key_values": past_key_values,
                "use_cache": kwargs.get("use_cache"),
                "attention_mask": attention_mask,
            }
        )
        return model_inputs

    @staticmethod
    def _reorder_cache(past_key_values, beam_idx):
        reordered_past = ()
        for layer_past in past_key_values:
            reordered_past += (
                tuple(past_state.index_select(0, beam_idx.to(past_state.device)) for past_state in layer_past),
            )
        return reordered_past

Answer: os.environ["CUDA_VISIBLE_DEVICES"] = CUDA_VISIBLE_DEVICES

<think>
The script has just imported CUDA_VISIBLE_DEVICES from the config file. In many training scripts the next step is to set the CUDA_VISIBLE_DEVICES environment variable so that only the specified GPUs are visible to PyTorch. Therefore the appropriate next line is assigning the imported value to the environment variable.
</think>
os.environ["CUDA_VISIBLE_DEVICES"] = CUDA_VISIBLE_DEVICES