Context:
package com.defano.wyldcard.parts.model;

import com.defano.wyldcard.WyldCard;
import com.defano.wyldcard.parts.Messagable;
import com.defano.wyldcard.parts.button.ButtonModel;
import com.defano.wyldcard.parts.card.CardLayer;
import com.defano.wyldcard.parts.field.FieldModel;
import com.defano.wyldcard.parts.stack.StackModel;
import com.defano.wyldcard.runtime.context.ExecutionContext;
import com.defano.wyldcard.runtime.interpreter.CompilationUnit;
import com.defano.wyldcard.runtime.interpreter.Interpreter;
import com.defano.wyldcard.util.ThreadUtils;
import com.defano.wyldcard.window.WindowBuilder;
import com.defano.wyldcard.window.layouts.ButtonPropertyEditor;
import com.defano.wyldcard.window.layouts.FieldPropertyEditor;
import com.defano.wyldcard.window.layouts.ScriptEditor;
import com.defano.hypertalk.ast.expressions.parts.LiteralPartExp;
import com.defano.hypertalk.ast.model.*;
import com.defano.hypertalk.ast.model.specifiers.CompositePartSpecifier;
import com.defano.hypertalk.ast.model.specifiers.PartIdSpecifier;
import com.defano.hypertalk.ast.model.specifiers.PartSpecifier;
import com.defano.hypertalk.exception.HtException;
import com.defano.hypertalk.exception.HtSemanticException;

import javax.annotation.PostConstruct;
import javax.swing.*;
import java.awt.*;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.atomic.AtomicReference;

/**
 * A base model object for all HyperCard "parts" that Defines properties common to all part objects.
 */
public abstract class PartModel extends WyldCardPropertiesModel implements Messagable {

    public static final String PROP_SCRIPT = "script";
    public static final String PROP_ID = "id";
    public static final String PROP_NUMBER = "number";
    public static final String PROP_NAME = "name";
    public static final String PROP_LEFT = "left";
    public static final String PROP_TOP = "top";
    public static final String PROP_RIGHT = "right";
    public static final String PROP_BOTTOM = "bottom";
    public static final String PROP_WIDTH = "width";
    public static final String PROP_HEIGHT = "height";
    public static final String PROP_RECT = "rect";
    public static final String PROP_RECTANGLE = "rectangle";
    public static final String PROP_TOPLEFT = "topleft";
    public static final String PROP_BOTTOMRIGHT = "bottomright";
    public static final String PROP_BOTRIGHT = "botright";
    public static final String PROP_VISIBLE = "visible";
    public static final String PROP_LOC = "loc";
    public static final String PROP_LOCATION = "location";
    public static final String PROP_CONTENTS = "contents";
    public static final String PROP_SCRIPTTEXT = "scripttext";
    public static final String PROP_BREAKPOINTS = "breakpoints";
    public static final String PROP_CHECKPOINTS = "checkpoints";

    private final PartType type;
    private Owner owner;
    private int scriptEditorCaretPosition;

    private transient PartModel parentPartModel;
    private transient Script script;

    public PartModel(PartType type, Owner owner, PartModel parentPartModel) {
        super();

        this.type = type;
        this.owner = owner;
        this.parentPartModel = parentPartModel;

        newProperty(PROP_VISIBLE, new Value(true), false);
        newProperty(PROP_SCRIPTTEXT, new Value(), false);
        newProperty(PROP_BREAKPOINTS, new Value(), false);

        initialize();
    }

    /**
     * Recursively re-establish the parent-child part model relationship. Sets the value returned by
     * {@link #getParentPartModel()} to the given part model and causes this model to invoke this method on all its
     * children.
     *

     * The relationship between a parent and it's child parts are persistent when serialized, but the reverse
     * relationship (between child and parent) is transient. This is a side effect of the serialization engine being
     * unable to deal with cycles in the model object graph (a child cannot depend on a parent that also depends on
     * it.). Thus, as a workaround, we programmatically re-establish the child-to-parent relationship after the stack
     * has completed deserializing from JSON.
     *
     * @param parentPartModel The {@link PartModel} of the parent of this part. Null for models that do not have a
     *                        parent part (i.e., stacks and the message box).
     */
    public abstract void relinkParentPartModel(PartModel parentPartModel);

    @PostConstruct
    @Override
    public void initialize() {
        super.initialize();

        // Convert rectangle (consisting of top left and bottom right coordinates) into top, left, height and width
        newComputedSetterProperty(PROP_RECT, (context, model, propertyName, value) -> {
            if (value.isRect()) {
                model.setKnownProperty(context, PROP_LEFT, value.getItemAt(context, 0));
                model.setKnownProperty(context, PROP_TOP, value.getItemAt(context, 1));
                model.setKnownProperty(context, PROP_HEIGHT, new Value(value.getItemAt(context, 3).longValue() - value.getItemAt(context, 1).longValue()));
                model.setKnownProperty(context, PROP_WIDTH, new Value(value.getItemAt(context, 2).longValue() - value.getItemAt(context, 0).longValue()));
            } else {
                throw new HtSemanticException("Expected a rectangle, but got " + value.toString());
            }
        });

        newComputedGetterProperty(PROP_RECT, (context, model, propertyName) -> {
            Value left = model.getKnownProperty(context, PROP_LEFT);
            Value top = model.getKnownProperty(context, PROP_TOP);
            Value height = model.getKnownProperty(context, PROP_HEIGHT);
            Value width = model.getKnownProperty(context, PROP_WIDTH);

            return new Value(left.integerValue(), top.integerValue(), left.integerValue() + width.integerValue(), top.integerValue() + height.integerValue());
        });

        newComputedGetterProperty(PROP_RIGHT, (context, model, propertyName) ->
                new Value(model.getKnownProperty(context, PROP_LEFT).integerValue() + model.getKnownProperty(context, PROP_WIDTH).integerValue())
        );

        newComputedSetterProperty(PROP_RIGHT, (context, model, propertyName, value) ->
                model.setKnownProperty(context, PROP_LEFT, new Value(value.integerValue() - model.getKnownProperty(context, PROP_WIDTH).integerValue()))
        );

        newComputedGetterProperty(PROP_BOTTOM, (context, model, propertyName) ->
                new Value(model.getKnownProperty(context, PROP_TOP).integerValue() + model.getKnownProperty(context, PROP_HEIGHT).integerValue())
        );

        newComputedSetterProperty(PROP_BOTTOM, (context, model, propertyName, value) ->
                model.setKnownProperty(context, PROP_TOP, new Value(value.integerValue() - model.getKnownProperty(context, PROP_HEIGHT).integerValue()))
        );

        newComputedSetterProperty(PROP_TOPLEFT, (context, model, propertyName, value) -> {
            if (value.isPoint()) {
                model.setKnownProperty(context, PROP_LEFT, value.getItemAt(context, 0));
                model.setKnownProperty(context, PROP_TOP, value.getItemAt(context, 1));
            } else {
                throw new HtSemanticException("Expected a point, but got " + value.toString());
            }
        });

        newComputedGetterProperty(PROP_TOPLEFT, (context, model, propertyName) ->
                new Value(model.getKnownProperty(context, PROP_LEFT).integerValue(), model.getKnownProperty(context, PROP_TOP).integerValue())
        );

        newComputedSetterProperty(PROP_BOTTOMRIGHT, (context, model, propertyName, value) -> {
            if (value.isPoint()) {
                model.setKnownProperty(context, PROP_LEFT, new Value(value.getItemAt(context, 0).longValue() - model.getKnownProperty(context, PROP_WIDTH).longValue()));
                model.setKnownProperty(context, PROP_TOP, new Value(value.getItemAt(context, 1).longValue() - model.getKnownProperty(context, PROP_HEIGHT).longValue()));
            } else {
                throw new HtSemanticException("Expected a point, but got " + value.toString());
            }
        });
        newPropertyAlias(PROP_BOTTOMRIGHT, PROP_BOTRIGHT);

        newComputedGetterProperty(PROP_BOTTOMRIGHT, (context, model, propertyName) ->
                new Value(
                        model.getKnownProperty(context, PROP_LEFT).integerValue() + model.getKnownProperty(context, PROP_WIDTH).integerValue(),
                        model.getKnownProperty(context, PROP_TOP).integerValue() + model.getKnownProperty(context, PROP_HEIGHT).integerValue()
                )
        );

        newPropertyAlias(PROP_LOCATION, PROP_LOC);
        newComputedGetterProperty(PROP_LOCATION, (context, model, propertyName) ->
                new Value(
                        model.getKnownProperty(context, PROP_LEFT).integerValue() + model.getKnownProperty(context, PROP_WIDTH).integerValue() / 2,
                        model.getKnownProperty(context, PROP_TOP).integerValue() + model.getKnownProperty(context, PROP_HEIGHT).integerValue() / 2
                )
        );
        newComputedSetterProperty(PROP_LOCATION, (context, model, propertyName, value) -> {
            if (value.isPoint()) {
                model.setKnownProperty(context, PROP_LEFT, new Value(value.getItemAt(context, 0).longValue() - model.getKnownProperty(context, PROP_WIDTH).longValue() / 2));
                model.setKnownProperty(context, PROP_TOP, new Value(value.getItemAt(context, 1).longValue() - model.getKnownProperty(context, PROP_HEIGHT).longValue() / 2));
            } else {
                throw new HtSemanticException("Expected a point, but got " + value.toString());
            }
        });

        newPropertyAlias(PROP_RECT, PROP_RECTANGLE);

        // When breakpoints change, automatically apply them to the script
        addPropertyChangedObserver((context, model, property, oldValue, newValue) -> {
            if (property.equalsIgnoreCase(PROP_BREAKPOINTS)) {
                getScript(context).applyBreakpoints(getBreakpoints());
            }
        });
        newPropertyAlias(PROP_BREAKPOINTS, PROP_CHECKPOINTS);

        newComputedGetterProperty(PROP_SCRIPT, (context, model, propertyName) -> model.getKnownProperty(context, PROP_SCRIPTTEXT));
        newComputedSetterProperty(PROP_SCRIPT, (context, model, propertyName, value) -> {
            model.setKnownProperty(context, PROP_SCRIPTTEXT, value);
            precompile(context);
        });

        precompile(new ExecutionContext());
    }

    /**
     * Gets the "default" adjective associated with the given property. That is, the length adjective that is
     * automatically applied when referring to a property without explicitly specifying an adjective.
     *

     * For example, 'the name of btn 1' actually refers to 'the abbreviated name' property.
     *
     * @param propertyName The name of the property whose default adjective should be returned.
     * @return The default adjective.
     */
    public LengthAdjective getDefaultAdjectiveForProperty(String propertyName) {
        return LengthAdjective.DEFAULT;
    }

    /**
     * Determines if a length adjective may be applied to the given property of this part (i.e., 'the long name').
     *
     * @param propertyName The name of the property
     * @return True if the property supports length adjectives for this part, false otherwise.
     */
    public boolean isAdjectiveSupportedProperty(String propertyName) {
        return false;
    }

    public Rectangle getRect(ExecutionContext context) {
        try {
            Rectangle rect = new Rectangle();
            rect.x = getProperty(context, PROP_LEFT).integerValue();
            rect.y = getProperty(context, PROP_TOP).integerValue();
            rect.height = getProperty(context, PROP_HEIGHT).integerValue();
            rect.width = getProperty(context, PROP_WIDTH).integerValue();

            return rect;
        } catch (Exception e) {
            throw new RuntimeException("Couldn't get geometry for part model.", e);
        }
    }

    public PartType getType() {
        return type;
    }

    private void precompile(ExecutionContext context) {
        if (hasProperty(PROP_SCRIPTTEXT)) {
            Interpreter.asyncCompile(CompilationUnit.SCRIPT, getKnownProperty(context, PROP_SCRIPTTEXT).toString(), (scriptText, compiledScript, generatedError) -> {
                if (generatedError == null) {
                    script = (Script) compiledScript;
                    script.applyBreakpoints(getBreakpoints());
                }
            });
        }
    }

Answer: public Script getScript(ExecutionContext context) {

<think>
The class defines a private precompile method that compiles the script text asynchronously and stores it in the transient 'script' field. Later in the class, other code (e.g., the property‑changed observer) calls getScript(context) to retrieve this compiled script. Therefore, after the precompile method the next logical member is the public getter for the script. The appropriate Java signature is 'public Script getScript(ExecutionContext context) {' which starts that method.
</think>
public Script getScript(ExecutionContext context) {


Context:
// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.

using System.Collections.Generic;
using System.Linq;
using Xunit;

namespace System.Collections.Tests
{
    /// <summary>
    /// Contains tests that ensure the correctness of any class that implements the generic
    /// IDictionary interface
    /// </summary>
    public abstract partial class IDictionary_Generic_Tests<TKey, TValue> : ICollection_Generic_Tests<KeyValuePair<TKey, TValue>>
    {
        #region IDictionary<TKey, TValue> Helper Methods

        /// <summary>
        /// Creates an instance of an IDictionary{TKey, TValue} that can be used for testing.
        /// </summary>
        /// <returns>An instance of an IDictionary{TKey, TValue} that can be used for testing.</returns>
        protected abstract IDictionary<TKey, TValue> GenericIDictionaryFactory();

        /// <summary>
        /// Creates an instance of an IDictionary{TKey, TValue} that can be used for testing.
        /// </summary>
        /// <param name="count">The number of items that the returned IDictionary{TKey, TValue} contains.</param>
        /// <returns>An instance of an IDictionary{TKey, TValue} that can be used for testing.</returns>
        protected virtual IDictionary<TKey, TValue> GenericIDictionaryFactory(int count)
        {
            IDictionary<TKey, TValue> collection = GenericIDictionaryFactory();
            AddToCollection(collection, count);
            return collection;
        }

        /// <summary>
        /// To be implemented in the concrete Dictionary test classes. Creates an instance of TKey that
        /// is dependent only on the seed passed as input and will return the same key on repeated
        /// calls with the same seed.
        /// </summary>
        protected abstract TKey CreateTKey(int seed);

        /// <summary>
        /// To be implemented in the concrete Dictionary test classes. Creates an instance of TValue that
        /// is dependent only on the seed passed as input and will return the same value on repeated
        /// calls with the same seed.
        /// </summary>
        protected abstract TValue CreateTValue(int seed);

        /// <summary>
        /// Helper method to get a key that doesn't already exist within the dictionary given
        /// </summary>
        protected TKey GetNewKey(IDictionary<TKey, TValue> dictionary)
        {
            int seed = 840;
            TKey missingKey = CreateTKey(seed++);
            while (dictionary.ContainsKey(missingKey) || missingKey.Equals(default(TKey)))
                missingKey = CreateTKey(seed++);
            return missingKey;
        }

        /// <summary>
        /// For a Dictionary, the key comparer is primarily important rather than the KeyValuePair. For this
        /// reason, we rely only on the KeyComparer methods instead of the GetIComparer methods.
        /// </summary>
        public virtual IEqualityComparer<TKey> GetKeyIEqualityComparer()
        {
            return EqualityComparer<TKey>.Default;
        }

        /// <summary>
        /// For a Dictionary, the key comparer is primarily important rather than the KeyValuePair. For this
        /// reason, we rely only on the KeyComparer methods instead of the GetIComparer methods.
        /// </summary>
        public virtual IComparer<TKey> GetKeyIComparer()
        {
            return Comparer<TKey>.Default;
        }

        /// <summary>
        /// Class to provide an indirection around a Key comparer. Allows us to use a key comparer as a KeyValuePair comparer
        /// by only looking at the key of a KeyValuePair.
        /// </summary>
        public class KVPComparer : IEqualityComparer<KeyValuePair<TKey, TValue>>, IComparer<KeyValuePair<TKey, TValue>>
        {
            private IComparer<TKey> _comparer;
            private IEqualityComparer<TKey> _equalityComparer;

            public KVPComparer(IComparer<TKey> comparer, IEqualityComparer<TKey> eq)
            {
                _comparer = comparer;
                _equalityComparer = eq;
            }

            public int Compare(KeyValuePair<TKey, TValue> x, KeyValuePair<TKey, TValue> y)
            {
                return _comparer.Compare(x.Key, y.Key);
            }

            public bool Equals(KeyValuePair<TKey, TValue> x, KeyValuePair<TKey, TValue> y)
            {
                return _equalityComparer.Equals(x.Key, y.Key);
            }

            public int GetHashCode(KeyValuePair<TKey, TValue> obj)
            {
                return _equalityComparer.GetHashCode(obj.Key);
            }
        }

        #endregion

        #region ICollection<KeyValuePair<TKey, TValue>> Helper Methods

        protected override ICollection<KeyValuePair<TKey, TValue>> GenericICollectionFactory()
        {
            return GenericIDictionaryFactory();
        }

        protected override ICollection<KeyValuePair<TKey, TValue>> GenericICollectionFactory(int count)
        {
            return GenericIDictionaryFactory(count);
        }

        protected override bool DefaultValueAllowed => false;

        protected override bool DuplicateValuesAllowed => false;

        protected override void AddToCollection(ICollection<KeyValuePair<TKey, TValue>> collection, int numberOfItemsToAdd)
        {
            Assert.False(IsReadOnly);
            int seed = 12353;
            IDictionary<TKey, TValue> casted = (IDictionary<TKey, TValue>)collection;
            int initialCount = casted.Count;
            while ((casted.Count - initialCount) < numberOfItemsToAdd)
            {
                KeyValuePair<TKey, TValue> toAdd = CreateT(seed++);
                while (casted.ContainsKey(toAdd.Key) || Enumerable.Contains(InvalidValues, toAdd))
                    toAdd = CreateT(seed++);
                collection.Add(toAdd);
            }
        }

        protected override IEqualityComparer<KeyValuePair<TKey, TValue>> GetIEqualityComparer()
        {
            return new KVPComparer(GetKeyIComparer(), GetKeyIEqualityComparer());
        }

        protected override IComparer<KeyValuePair<TKey, TValue>> GetIComparer()
        {
            return new KVPComparer(GetKeyIComparer(), GetKeyIEqualityComparer());
        }

        /// <summary>
        /// Returns a set of ModifyEnumerable delegates that modify the enumerable passed to them.
        /// </summary>
        protected override IEnumerable<ModifyEnumerable> GetModifyEnumerables(ModifyOperation operations)
        {
            if ((operations & ModifyOperation.Add) == ModifyOperation.Add)
            {
                yield return (IEnumerable<KeyValuePair<TKey, TValue>> enumerable) =>
                {
                    IDictionary<TKey, TValue> casted = ((IDictionary<TKey, TValue>)enumerable);
                    casted.Add(CreateTKey(12), CreateTValue(5123));
                    return true;
                };
            }
            if ((operations & ModifyOperation.Insert) == ModifyOperation.Insert)
            {
                yield return (IEnumerable<KeyValuePair<TKey, TValue>> enumerable) =>
                {
                    IDictionary<TKey, TValue> casted = ((IDictionary<TKey, TValue>)enumerable);
                    casted[CreateTKey(541)] = CreateTValue(12);
                    return true;
                };
            }
            if ((operations & ModifyOperation.Remove) == ModifyOperation.Remove)
            {
                yield return (IEnumerable<KeyValuePair<TKey, TValue>> enumerable) =>
                {
                    IDictionary<TKey, TValue> casted = ((IDictionary<TKey, TValue>)enumerable);
                    if (casted.Count() > 0)
                    {
                        var keys = casted.Keys.GetEnumerator();
                        keys.MoveNext();
                        casted.Remove(keys.Current);
                        return true;
                    }
                    return false;
                };
            }
            if ((operations & ModifyOperation.Clear) == ModifyOperation.Clear)
            {
                yield return (IEnumerable<KeyValuePair<TKey, TValue>> enumerable) =>
                {
                    IDictionary<TKey, TValue> casted = ((IDictionary<TKey, TValue>)enumerable);
                    if (casted.Count() > 0)
                    {
                        casted.Clear();
                        return true;
                    }
                    return false;
                };
            }
            //throw new InvalidOperationException(string.Format("{0:G}", operations));
        }

        /// <summary>
        /// Used in IDictionary_Generic_Values_Enumeration_ParentDictionaryModifiedInvalidates and
        /// IDictionary_Generic_Keys_Enumeration_ParentDictionaryModifiedInvalidates.
        /// Some collections (e.g. ConcurrentDictionary) do not throw an InvalidOperationException
        /// when enumerating the Keys or Values property and the parent is modified.
        /// </summary>
        protected virtual bool IDictionary_Generic_Keys_Values_Enumeration_ThrowsInvalidOperation_WhenParentModified => true;

        /// <summary>
        /// Used in IDictionary_Generic_Values_ModifyingTheDictionaryUpdatesTheCollection and
        /// IDictionary_Generic_Keys_ModifyingTheDictionaryUpdatesTheCollection.
        /// Some collections (e.g ConcurrentDictionary) use iterators in the Keys and Values properties,
        /// and do not respond to updates in the base collection.
        /// </summary>
        protected virtual bool IDictionary_Generic_Keys_Values_ModifyingTheDictionaryUpdatesTheCollection => true;

        /// <summary>
        /// Used in IDictionary_Generic_Keys_Enumeration_Reset and IDictionary_Generic_Values_Enumeration_Reset.
        /// Typically, the support for Reset in enumerators for the Keys and Values depend on the support for it
        /// in the parent dictionary. However, some collections (e.g. ConcurrentDictionary) don't.
        /// </summary>
        protected virtual bool IDictionary_Generic_Keys_Values_Enumeration_ResetImplemented => ResetImplemented;

        #endregion

        #region Item Getter

        [Theory]
        [MemberData(nameof(ValidCollectionSizes))]
        public void IDictionary_Generic_ItemGet_DefaultKey(int count)
        {
            IDictionary<TKey, TValue> dictionary = GenericIDictionaryFactory(count);
            if (!DefaultValueAllowed)
            {
                Assert.Throws<ArgumentNullException>(() => dictionary[default(TKey)]);
            }
            else
            {
                TValue value = CreateTValue(3452);
                dictionary[default(TKey)] = value;
                Assert.Equal(value, dictionary[default(TKey)]);
            }
        }

        [Theory]
        [MemberData(nameof(ValidCollectionSizes))]
        public void IDictionary_Generic_ItemGet_MissingNonDefaultKey_ThrowsKeyNotFoundException(int count)
        {
            IDictionary<TKey, TValue> dictionary = GenericIDictionaryFactory(count);
            TKey missingKey = GetNewKey(dictionary);
            Assert.Throws<KeyNotFoundException>(() => dictionary[missingKey]);
        }

        [Theory]
        [MemberData(nameof(ValidCollectionSizes))]
        public void IDictionary_Generic_ItemGet_MissingDefaultKey_ThrowsKeyNotFoundException(int count)
        {
            if (DefaultValueAllowed)
            {
                IDictionary<TKey, TValue> dictionary = GenericIDictionaryFactory(count);
                TKey missingKey = default(TKey);
                while (dictionary.ContainsKey(missingKey))
                    dictionary.Remove(missingKey);
                Assert.Throws<KeyNotFoundException>(() => dictionary[missingKey]);
            }
        }

        [Theory]
        [MemberData(nameof(ValidCollectionSizes))]
        public void IDictionary_Generic_ItemGet_PresentKeyReturnsCorrectValue(int count)
        {
            IDictionary<TKey, TValue> dictionary = GenericIDictionaryFactory(count);
            foreach (KeyValuePair<TKey, TValue> pair in dictionary)
            {
                Assert.Equal(pair.Value, dictionary[pair.Key]);
            }
        }

        #endregion

        #region Item Setter

        [Theory]
        [MemberData(nameof(ValidCollectionSizes))]
        public void IDictionary_Generic_ItemSet_DefaultKey(int count)
        {
            IDictionary<TKey, TValue> dictionary = GenericIDictionaryFactory(count);
            if (!DefaultValueAllowed)
            {
                Assert.Throws<ArgumentNullException>(() => dictionary[default(TKey)] = CreateTValue(3));
            }
            else
            {
                TValue value = CreateTValue(3452);
                dictionary[default(TKey)] = value;
                Assert.Equal(value, dictionary[default(TKey)]);
            }
        }

        [Theory]
        [MemberData(nameof(ValidCollectionSizes))]
        public void IDictionary_Generic_ItemSet_OnReadOnlyDictionary_ThrowsNotSupportedException(int count)
        {
            if (IsReadOnly)
            {
                IDictionary<TKey, TValue> dictionary = GenericIDictionaryFactory(count);
                TKey missingKey = GetNewKey(dictionary);
                Assert.Throws<NotSupportedException>(() => dictionary[missingKey] = CreateTValue(5312));
            }
        }

        [Theory]
        [MemberData(nameof(ValidCollectionSizes))]
        public void IDictionary_Generic_ItemSet_AddsNewValueWhenNotPresent(int count)
        {
            IDictionary<TKey, TValue> dictionary = GenericIDictionaryFactory(count);
            TKey missingKey = GetNewKey(dictionary);
            dictionary[missingKey] = CreateTValue(543);
            Assert.Equal(count + 1, dictionary.Count);
        }

        [Theory]
        [MemberData(nameof(ValidCollectionSizes))]
        public void IDictionary_Generic_ItemSet_ReplacesExistingValueWhenPresent(int count)
        {
            IDictionary<TKey, TValue> dictionary = GenericIDictionaryFactory(count);
            TKey existingKey = GetNewKey(dictionary);
            dictionary.Add(existingKey, CreateTValue(5342));
            TValue newValue = CreateTValue(1234);
            dictionary[existingKey] = newValue;
            Assert.Equal(count + 1, dictionary.Count);
            Assert.Equal(newValue, dictionary[existingKey]);
        }

        #endregion

        #region Keys

        [Theory]
        [MemberData(nameof(ValidCollectionSizes))]
        public void IDictionary_Generic_Keys_ContainsAllCorrectKeys(int count)
        {
            IDictionary<TKey, TValue> dictionary = GenericIDictionaryFactory(count);
            IEnumerable<TKey> expected = dictionary.Select((pair) => pair.Key);
            Assert.True(expected.SequenceEqual(dictionary.Keys));
        }

        [Theory]
        [MemberData(nameof(ValidCollectionSizes))]
        public void IDictionary_Generic_Keys_ModifyingTheDictionaryUpdatesTheCollection(int count)
        {
            IDictionary<TKey, TValue> dictionary = GenericIDictionaryFactory(count);
            ICollection<TKey> keys = dictionary.Keys;
            int previousCount = keys.Count;
            if (count > 0)
                Assert.NotEmpty(keys);
            dictionary.Clear();
            if (IDictionary_Generic_Keys_Values_ModifyingTheDictionaryUpdatesTheCollection)
            {
                Assert.Empty(keys);
            }
            else
            {
                Assert.Equal(previousCount, keys.Count);
            }
        }

        [Theory]
        [MemberData(nameof(ValidCollectionSizes))]
        public void IDictionary_Generic_Keys_Enumeration_ParentDictionaryModifiedInvalidates(int count)
        {
            IDictionary<TKey, TValue> dictionary = GenericIDictionaryFactory(count);
            ICollection<TKey> keys = dictionary.Keys;
            IEnumerator<TKey> keysEnum = keys.GetEnumerator();
            dictionary.Add(GetNewKey(dictionary), CreateTValue(3432));
            if (IDictionary_Generic_Keys_Values_Enumeration_ThrowsInvalidOperation_WhenParentModified)
            {
                Assert.Throws<InvalidOperationException>(() => keysEnum.MoveNext());
                Assert.Throws<InvalidOperationException>(() => keysEnum.Reset());
            }
            else
            {
                keysEnum.MoveNext();
                keysEnum.Reset();
            }
            var cur = keysEnum.Current;
        }

        [Theory]
        [MemberData(nameof(ValidCollectionSizes))]
        public void IDictionary_Generic_Keys_IsReadOnly(int count)
        {
            IDictionary<TKey, TValue> dictionary = GenericIDictionaryFactory(count);
            ICollection<TKey> keys = dictionary.Keys;
            Assert.True(keys.IsReadOnly);
            Assert.Throws<NotSupportedException>(() => keys.Add(CreateTKey(11)));
            Assert.Throws<NotSupportedException>(() => keys.Clear());
            Assert.Throws<NotSupportedException>(() => keys.Remove(CreateTKey(11)));
        }

        [Theory]
        [MemberData(nameof(ValidCollectionSizes))]
        public void IDictionary_Generic_Keys_Enumeration_Reset(int count)
        {
            IDictionary<TKey, TValue> dictionary = GenericIDictionaryFactory(count);
            ICollection<TKey> keys = dictionary.Keys;
            var enumerator = keys.GetEnumerator();
            if (IDictionary_Generic_Keys_Values_Enumeration_ResetImplemented)
                enumerator.Reset();
            else
                Assert.Throws<NotSupportedException>(() => enumerator.Reset());
        }

        #endregion

        #region Values

        [Theory]
        [MemberData(nameof(ValidCollectionSizes))]
        public void IDictionary_Generic_Values_ContainsAllCorrectValues(int count)
        {
            IDictionary<TKey, TValue> dictionary = GenericIDictionaryFactory(count);
            IEnumerable<TValue> expected = dictionary.Select((pair) => pair.Value);
            Assert.True(expected.SequenceEqual(dictionary.Values));
        }

        [Theory]
        [MemberData(nameof(ValidCollectionSizes))]
        public void IDictionary_Generic_Values_IncludeDuplicatesMultipleTimes(int count)
        {

Answer: IDictionary<TKey, TValue> dictionary = GenericIDictionaryFactory(count);

<think>
The method follows the pattern of other test methods in this class, which begin by creating a dictionary instance using GenericIDictionaryFactory(count). The next line should therefore be that initialization.
</think>
IDictionary<TKey, TValue> dictionary = GenericIDictionaryFactory(count);


Context:
//------------------------------------------------------------------------------
// <license file="Token.cs">
//
//      The use and distribution terms for this software are contained in the file
//      named 'LICENSE', which can be found in the resources directory of this
//		distribution.
//
//      By using this software in any fashion, you are agreeing to be bound by the
//      terms of this license.
//
// </license>
//------------------------------------------------------------------------------

using System;

namespace EcmaScript.NET
{

    /// <summary> This class implements the JavaScript scanner.
    ///
    /// It is based on the C source files jsscan.c and jsscan.h
    /// in the jsref package.
    ///
    /// </summary>
    public class Token
    {

        // debug flags
        internal static readonly bool printTrees = false; // TODO: make me a preprocessor directive

        internal static readonly bool printICode = false; // TODO: make me a preprocessor directive

        internal static readonly bool printNames = printTrees || printICode;

        /// <summary>
        /// Token types.
        ///
        /// These values correspond to JSTokenType values in
        /// jsscan.c.
        /// </summary>
        public const int ERROR = -1;				/* well-known as the only code < EOF */
        public const int EOF = 0;					/* end of file */
        public const int EOL = 1;					/* end of line */
        public const int FIRST_BYTECODE_TOKEN = 2;
        public const int ENTERWITH = 2;
        public const int LEAVEWITH = 3;
        public const int RETURN = 4;
        public const int GOTO = 5;
        public const int IFEQ = 6;
        public const int IFNE = 7;
        public const int SETNAME = 8;
        public const int BITOR = 9;
        public const int BITXOR = 10;
        public const int BITAND = 11;
        public const int EQ = 12;
        public const int NE = 13;
        public const int LT = 14;
        public const int LE = 15;
        public const int GT = 16;
        public const int GE = 17;
        public const int LSH = 18;
        public const int RSH = 19;
        public const int URSH = 20;
        public const int ADD = 21;
        public const int SUB = 22;
        public const int MUL = 23;
        public const int DIV = 24;
        public const int MOD = 25;
        public const int NOT = 26;
        public const int BITNOT = 27;
        public const int POS = 28;
        public const int NEG = 29;
        public const int NEW = 30;
        public const int DELPROP = 31;
        public const int TYPEOF = 32;
        public const int GETPROP = 33;
        public const int SETPROP = 34;
        public const int GETELEM = 35;
        public const int SETELEM = 36;
        public const int CALL = 37;
        public const int NAME = 38;
        public const int NUMBER = 39;
        public const int STRING = 40;
        public const int NULL = 41;
        public const int THIS = 42;
        public const int FALSE = 43;
        public const int TRUE = 44;
        public const int SHEQ = 45;
        public const int SHNE = 46;
        public const int REGEXP = 47;
        public const int BINDNAME = 48;
        public const int THROW = 49;
        public const int RETHROW = 50;
        public const int IN = 51;
        public const int INSTANCEOF = 52;
        public const int LOCAL_LOAD = 53;
        public const int GETVAR = 54;
        public const int SETVAR = 55;
        public const int CATCH_SCOPE = 56;
        public const int ENUM_INIT_KEYS = 57;
        public const int ENUM_INIT_VALUES = 58;
        public const int ENUM_NEXT = 59;
        public const int ENUM_ID = 60;
        public const int THISFN = 61;
        public const int RETURN_RESULT = 62;
        public const int ARRAYLIT = 63;
        public const int OBJECTLIT = 64;
        public const int GET_REF = 65;
        public const int SET_REF = 66;
        public const int DEL_REF = 67;
        public const int REF_CALL = 68;
        public const int REF_SPECIAL = 69;
        public const int DEFAULTNAMESPACE = 70;
        public const int ESCXMLATTR = 71;
        public const int ESCXMLTEXT = 72;
        public const int REF_MEMBER = 73;
        public const int REF_NS_MEMBER = 74;
        public const int REF_NAME = 75;
        public const int REF_NS_NAME = 76; // Reference for ns::y, @ns::y@[y] etc.
        public const int SETPROP_GETTER = 77;
        public const int SETPROP_SETTER = 78;

        // End of interpreter bytecodes
        public const int LAST_BYTECODE_TOKEN = SETPROP_SETTER;

        public const int TRY = LAST_BYTECODE_TOKEN + 1;
        public const int SEMI = LAST_BYTECODE_TOKEN + 2;
        public const int LB = LAST_BYTECODE_TOKEN + 3;
        public const int RB = LAST_BYTECODE_TOKEN + 4;
        public const int LC = LAST_BYTECODE_TOKEN + 5;
        public const int RC = LAST_BYTECODE_TOKEN + 6;
        public const int LP = LAST_BYTECODE_TOKEN + 7;
        public const int RP = LAST_BYTECODE_TOKEN + 8;
        public const int COMMA = LAST_BYTECODE_TOKEN + 9;
        public const int ASSIGN = LAST_BYTECODE_TOKEN + 10;
        public const int ASSIGN_BITOR = LAST_BYTECODE_TOKEN + 11;
        public const int ASSIGN_BITXOR = LAST_BYTECODE_TOKEN + 12;
        public const int ASSIGN_BITAND = LAST_BYTECODE_TOKEN + 13;
        public const int ASSIGN_LSH = LAST_BYTECODE_TOKEN + 14;
        public const int ASSIGN_RSH = LAST_BYTECODE_TOKEN + 15;
        public const int ASSIGN_URSH = LAST_BYTECODE_TOKEN + 16;
        public const int ASSIGN_ADD = LAST_BYTECODE_TOKEN + 17;
        public const int ASSIGN_SUB = LAST_BYTECODE_TOKEN + 18;
        public const int ASSIGN_MUL = LAST_BYTECODE_TOKEN + 19;
        public const int ASSIGN_DIV = LAST_BYTECODE_TOKEN + 20;
        public const int ASSIGN_MOD = LAST_BYTECODE_TOKEN + 21; // %=

        public const int FIRST_ASSIGN = ASSIGN;
        public const int LAST_ASSIGN = ASSIGN_MOD;

        public const int HOOK = LAST_BYTECODE_TOKEN + 22;
        public const int COLON = LAST_BYTECODE_TOKEN + 23;
        public const int OR = LAST_BYTECODE_TOKEN + 24;
        public const int AND = LAST_BYTECODE_TOKEN + 25;
        public const int INC = LAST_BYTECODE_TOKEN + 26;
        public const int DEC = LAST_BYTECODE_TOKEN + 27;
        public const int DOT = LAST_BYTECODE_TOKEN + 28;
        public const int FUNCTION = LAST_BYTECODE_TOKEN + 29;
        public const int EXPORT = LAST_BYTECODE_TOKEN + 30;
        public const int IMPORT = LAST_BYTECODE_TOKEN + 31;
        public const int IF = LAST_BYTECODE_TOKEN + 32;

Answer: public const int ELSE = LAST_BYTECODE_TOKEN + 33;

<think>
The code is defining a series of integer constants for token types, each offset from LAST_BYTECODE_TOKEN. The last defined constant is IF = LAST_BYTECODE_TOKEN + 32. The next logical token in a JavaScript lexer is the ELSE keyword, which should follow IF and be assigned the next sequential value (+33). Therefore the next line should declare the ELSE constant with that value.
</think>
public const int ELSE = LAST_BYTECODE_TOKEN + 33;


Context:
namespace StockSharp.Algo.Storages.Csv
{
	using System;
	using System.Collections;
	using System.Collections.Generic;
	using System.ComponentModel;
	using System.Globalization;
	using System.IO;
	using System.Linq;
	using System.Text;
	using System.Threading;

	using Ecng.Collections;
	using Ecng.Common;
	using Ecng.Serialization;

	using MoreLinq;

	using StockSharp.BusinessEntities;
	using StockSharp.Localization;
	using StockSharp.Logging;
	using StockSharp.Messages;

	/// <summary>
	/// The CSV storage of trading objects.
	/// </summary>
	public class CsvEntityRegistry : IEntityRegistry
	{
		private class FakeStorage : IStorage
		{
			private readonly CsvEntityRegistry _registry;

			public FakeStorage(CsvEntityRegistry registry)
			{
				_registry = registry;
			}

			public long GetCount<TEntity>()
			{
				return 0;
			}

			public TEntity Add<TEntity>(TEntity entity)
			{
				Added?.Invoke(entity);
				return entity;
			}

			public TEntity GetBy<TEntity>(SerializationItemCollection by)
			{
				return _registry.Securities.ReadById(by[0].Value).To<TEntity>();
				//throw new NotSupportedException();
			}

			public TEntity GetById<TEntity>(object id)
			{
				throw new NotSupportedException();
			}

			public IEnumerable<TEntity> GetGroup<TEntity>(long startIndex, long count, Field orderBy, ListSortDirection direction)
			{
				throw new NotSupportedException();
			}

			public TEntity Update<TEntity>(TEntity entity)
			{
				Updated?.Invoke(entity);
				return entity;
			}

			public void Remove<TEntity>(TEntity entity)
			{
				Removed?.Invoke(entity);
			}

			public void Clear<TEntity>()
			{
			}

			public void ClearCache()
			{
			}

			public BatchContext BeginBatch()
			{
				return new BatchContext(this);
			}

			public void CommitBatch()
			{
			}

			public void EndBatch()
			{
			}

			public event Action<object> Added;

			public event Action<object> Updated;

			public event Action<object> Removed;
		}

		sealed class ExchangeCsvList : CsvEntityList<Exchange>
		{
			public ExchangeCsvList(CsvEntityRegistry registry)
				: base(registry, "exchange.csv", Encoding.UTF8)
			{
			}

			protected override object GetKey(Exchange item)
			{
				return item.Name;
			}

			protected override Exchange Read(FastCsvReader reader)
			{
				var board = new Exchange
				{
					Name = reader.ReadString(),
					CountryCode = reader.ReadNullableEnum<CountryCodes>(),
					EngName = reader.ReadString(),
					RusName = reader.ReadString(),
					//ExtensionInfo = Deserialize<Dictionary<object, object>>(reader.ReadString())
				};

				return board;
			}

			protected override void Write(CsvFileWriter writer, Exchange data)
			{
				writer.WriteRow(new[]
				{
					data.Name,
					data.CountryCode.To<string>(),
					data.EngName,
					data.RusName,
					//Serialize(data.ExtensionInfo)
				});
			}
		}

		sealed class ExchangeBoardCsvList : CsvEntityList<ExchangeBoard>
		{
			public ExchangeBoardCsvList(CsvEntityRegistry registry)
				: base(registry, "exchangeboard.csv", Encoding.UTF8)
			{
			}

			protected override object GetKey(ExchangeBoard item)
			{
				return item.Code;
			}

			private Exchange GetExchange(string exchangeCode)
			{
				var exchange = Registry.Exchanges.ReadById(exchangeCode);

				if (exchange == null)
					throw new InvalidOperationException(LocalizedStrings.Str1217Params.Put(exchangeCode));

				return exchange;
			}

			protected override ExchangeBoard Read(FastCsvReader reader)
			{
				var board = new ExchangeBoard
				{
					Code = reader.ReadString(),
					Exchange = GetExchange(reader.ReadString()),
					ExpiryTime = reader.ReadString().ToTime(),
					//IsSupportAtomicReRegister = reader.ReadBool(),
					//IsSupportMarketOrders = reader.ReadBool(),
					TimeZone = TimeZoneInfo.FindSystemTimeZoneById(reader.ReadString()),
					WorkingTime =
					{
						Periods = Deserialize<List<WorkingTimePeriod>>(reader.ReadString()),
						SpecialWorkingDays = Deserialize<List<DateTime>>(reader.ReadString()),
						SpecialHolidays = Deserialize<List<DateTime>>(reader.ReadString())
					},
					//ExtensionInfo = Deserialize<Dictionary<object, object>>(reader.ReadString())
				};

				return board;
			}

			protected override void Write(CsvFileWriter writer, ExchangeBoard data)
			{
				writer.WriteRow(new[]
				{
					data.Code,
					data.Exchange.Name,
					data.ExpiryTime.WriteTime(),
					//data.IsSupportAtomicReRegister.To<string>(),
					//data.IsSupportMarketOrders.To<string>(),
					data.TimeZone.Id,
					Serialize(data.WorkingTime.Periods),
					Serialize(data.WorkingTime.SpecialWorkingDays),
					Serialize(data.WorkingTime.SpecialHolidays),
					//Serialize(data.ExtensionInfo)
				});
			}

			private readonly SynchronizedDictionary<object, object> _serializers = new SynchronizedDictionary<object, object>();

			private string Serialize<TItem>(TItem item)
			{
				if (item == null)
					return null;

				var serializer = (XmlSerializer<TItem>)_serializers.SafeAdd(typeof(TItem), k => new XmlSerializer<TItem>());

				using (var stream = new MemoryStream())
				{
					serializer.Serialize(item, stream);
					return Encoding.UTF8.GetString(stream.ToArray()).Remove(Environment.NewLine).Replace("\"", "'");
				}
			}

			private TItem Deserialize<TItem>(string value)
				where TItem : class
			{
				if (value.IsEmpty())
					return null;

				var serializer = (XmlSerializer<TItem>)_serializers.SafeAdd(typeof(TItem), k => new XmlSerializer<TItem>());
				var bytes = Encoding.UTF8.GetBytes(value.Replace("'", "\""));

				using (var stream = new MemoryStream(bytes))
					return serializer.Deserialize(stream);
			}
		}

		sealed class SecurityCsvList : CsvEntityList<Security>, IStorageSecurityList
		{
			public SecurityCsvList(CsvEntityRegistry registry)
				: base(registry, "security.csv", Encoding.UTF8)
			{
				((ICollectionEx<Security>)this).AddedRange += s => _added?.Invoke(s);
				((ICollectionEx<Security>)this).RemovedRange += s => _removed?.Invoke(s);
			}

			#region IStorageSecurityList

			public void Dispose()
			{
			}

			private Action<IEnumerable<Security>> _added;

			event Action<IEnumerable<Security>> ISecurityProvider.Added
			{
				add { _added += value; }
				remove { _added -= value; }
			}

			private Action<IEnumerable<Security>> _removed;

			event Action<IEnumerable<Security>> ISecurityProvider.Removed
			{
				add { _removed += value; }
				remove { _removed -= value; }
			}

			public IEnumerable<Security> Lookup(Security criteria)
			{
				if (criteria.IsLookupAll())
					return ToArray();

				if (criteria.Id.IsEmpty())
					return this.Filter(criteria);

				var security = ((IStorageSecurityList)this).ReadById(criteria.Id);
				return security == null ? Enumerable.Empty<Security>() : new[] { security };
			}

			public void Delete(Security security)
			{
				Remove(security);
			}

			public void DeleteBy(Security criteria)
			{
				this.Filter(criteria).ForEach(s => Remove(s));
			}

			public IEnumerable<string> GetSecurityIds()
			{
				return this.Select(s => s.Id);
			}

			#endregion

			#region CsvEntityList

			protected override object GetKey(Security item)
			{
				return item.Id;
			}

			private ExchangeBoard GetBoard(string boardCode)
			{
				var board = Registry.ExchangeBoards.ReadById(boardCode);

				if (board == null)
					throw new InvalidOperationException(LocalizedStrings.Str1217Params.Put(boardCode));

				return board;
			}

			protected override Security Read(FastCsvReader reader)
			{
				var security = new Security
				{
					Id = reader.ReadString(),
					Name = reader.ReadString(),
					Code = reader.ReadString(),
					Class = reader.ReadString(),
					ShortName = reader.ReadString(),
					Board = GetBoard(reader.ReadString()),
					UnderlyingSecurityId = reader.ReadString(),
					PriceStep = reader.ReadNullableDecimal(),
					VolumeStep = reader.ReadNullableDecimal(),
					Multiplier = reader.ReadNullableDecimal(),
					Decimals = reader.ReadNullableInt(),
					Type = reader.ReadNullableEnum<SecurityTypes>(),
					ExpiryDate = ReadNullableDateTime(reader),
					SettlementDate = ReadNullableDateTime(reader),
					Strike = reader.ReadNullableDecimal(),
					OptionType = reader.ReadNullableEnum<OptionTypes>(),
					Currency = reader.ReadNullableEnum<CurrencyTypes>(),
					ExternalId = new SecurityExternalId
					{
						Sedol = reader.ReadString(),
						Cusip = reader.ReadString(),
						Isin = reader.ReadString(),
						Ric = reader.ReadString(),
						Bloomberg = reader.ReadString(),
						IQFeed = reader.ReadString(),
						InteractiveBrokers = reader.ReadNullableInt(),
						Plaza = reader.ReadString()
					},
					//ExtensionInfo = Deserialize<Dictionary<object, object>>(reader.ReadString())
				};

				return security;
			}

			protected override void Write(CsvFileWriter writer, Security data)
			{
				writer.WriteRow(new[]
				{
					data.Id,
					data.Name,
					data.Code,
					data.Class,
					data.ShortName,
					data.Board.Code,
					data.UnderlyingSecurityId,
					data.PriceStep.To<string>(),
					data.VolumeStep.To<string>(),
					data.Multiplier.To<string>(),
					data.Decimals.To<string>(),
					data.Type.To<string>(),
					data.ExpiryDate?.UtcDateTime.ToString(_dateTimeFormat),
					data.SettlementDate?.UtcDateTime.ToString(_dateTimeFormat),
					data.Strike.To<string>(),
					data.OptionType.To<string>(),
					data.Currency.To<string>(),
					data.ExternalId.Sedol,
					data.ExternalId.Cusip,
					data.ExternalId.Isin,
					data.ExternalId.Ric,
					data.ExternalId.Bloomberg,
					data.ExternalId.IQFeed,
					data.ExternalId.InteractiveBrokers.To<string>(),
					data.ExternalId.Plaza,
					//Serialize(data.ExtensionInfo)
				});
			}

			#endregion
		}

		sealed class PortfolioCsvList : CsvEntityList<Portfolio>
		{
			public PortfolioCsvList(CsvEntityRegistry registry)
				: base(registry, "portfolio.csv", Encoding.UTF8)
			{
			}

			protected override object GetKey(Portfolio item)
			{
				return item.Name;
			}

			protected override Portfolio Read(FastCsvReader reader)
			{
				var portfolio = new Portfolio
				{
					Name = reader.ReadString(),
					Board = GetBoard(reader.ReadString()),
					Leverage = reader.ReadNullableDecimal(),
					BeginValue = reader.ReadNullableDecimal(),
					CurrentValue = reader.ReadNullableDecimal(),
					BlockedValue = reader.ReadNullableDecimal(),
					VariationMargin = reader.ReadNullableDecimal(),
					Commission = reader.ReadNullableDecimal(),
					Currency = reader.ReadNullableEnum<CurrencyTypes>(),
					State = reader.ReadNullableEnum<PortfolioStates>(),
					Description = reader.ReadString(),
					LastChangeTime = _dateTimeParser.Parse(reader.ReadString()).ChangeKind(DateTimeKind.Utc),
					LocalTime = _dateTimeParser.Parse(reader.ReadString()).ChangeKind(DateTimeKind.Utc)
				};

				return portfolio;
			}

			private ExchangeBoard GetBoard(string boardCode)
			{
				if (boardCode.IsEmpty())
					return null;

				var board = Registry.ExchangeBoards.ReadById(boardCode);

				if (board == null)
					throw new InvalidOperationException(LocalizedStrings.Str1217Params.Put(boardCode));

				return board;
			}

			protected override void Write(CsvFileWriter writer, Portfolio data)
			{
				writer.WriteRow(new[]
				{
					data.Name,
					data.Board?.Code,
					data.Leverage.To<string>(),
					data.BeginValue.To<string>(),
					data.CurrentValue.To<string>(),
					data.BlockedValue.To<string>(),
					data.VariationMargin.To<string>(),
					data.Commission.To<string>(),
					data.Currency.To<string>(),
					data.State.To<string>(),
					data.Description,
					data.LastChangeTime.UtcDateTime.ToString(_dateTimeFormat),
					data.LocalTime.UtcDateTime.ToString(_dateTimeFormat)
				});
			}
		}

		sealed class PositionCsvList : CsvEntityList<Position>, IStoragePositionList
		{
			public PositionCsvList(CsvEntityRegistry registry)
				: base(registry, "position.csv", Encoding.UTF8)
			{
			}

			protected override object GetKey(Position item)
			{
				return Tuple.Create(item.Portfolio, item.Security);
			}

			private Portfolio GetPortfolio(string id)
			{
				var portfolio = Registry.Portfolios.ReadById(id);

				if (portfolio == null)
					throw new InvalidOperationException(LocalizedStrings.Str3622Params.Put(id));

				return portfolio;
			}

			private Security GetSecurity(string id)
			{
				var security = Registry.Securities.ReadById(id);

				if (security == null)
					throw new InvalidOperationException(LocalizedStrings.Str704Params.Put(id));

				return security;
			}

Answer: protected override Position Read(FastCsvReader reader)

<think>
The PositionCsvList class defines helper methods GetPortfolio and GetSecurity. Following the pattern of other CsvEntityList subclasses, after these helpers the class provides the overridden Read method to deserialize a Position from CSV. Therefore the next line should start that method definition.
</think>
protected override Position Read(FastCsvReader reader)


Context:
package org.ovirt.engine.ui.uicommonweb.models.clusters;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.ovirt.engine.core.common.action.AddVdsActionParameters;
import org.ovirt.engine.core.common.action.VdcActionParametersBase;
import org.ovirt.engine.core.common.action.VdcActionType;
import org.ovirt.engine.core.common.action.VdcReturnValueBase;
import org.ovirt.engine.core.common.action.gluster.GlusterServiceParameters;
import org.ovirt.engine.core.common.action.gluster.RemoveGlusterServerParameters;
import org.ovirt.engine.core.common.businessentities.MigrateOnErrorOptions;
import org.ovirt.engine.core.common.businessentities.VDS;
import org.ovirt.engine.core.common.businessentities.VDSGroup;
import org.ovirt.engine.core.common.businessentities.gluster.GlusterClusterService;
import org.ovirt.engine.core.common.businessentities.gluster.GlusterServerService;
import org.ovirt.engine.core.common.businessentities.gluster.GlusterServiceStatus;
import org.ovirt.engine.core.common.businessentities.gluster.GlusterStatus;
import org.ovirt.engine.core.common.businessentities.gluster.GlusterVolumeEntity;
import org.ovirt.engine.core.common.businessentities.gluster.ServiceType;
import org.ovirt.engine.core.common.queries.IdQueryParameters;
import org.ovirt.engine.core.common.queries.VdcQueryReturnValue;
import org.ovirt.engine.core.common.queries.VdcQueryType;
import org.ovirt.engine.core.common.utils.ObjectUtils;
import org.ovirt.engine.core.compat.Guid;
import org.ovirt.engine.ui.frontend.AsyncQuery;
import org.ovirt.engine.ui.frontend.Frontend;
import org.ovirt.engine.ui.frontend.INewAsyncCallback;
import org.ovirt.engine.ui.uicommonweb.UICommand;
import org.ovirt.engine.ui.uicommonweb.dataprovider.AsyncDataProvider;
import org.ovirt.engine.ui.uicommonweb.help.HelpTag;
import org.ovirt.engine.ui.uicommonweb.models.EntityModel;
import org.ovirt.engine.ui.uicommonweb.models.gluster.DetachGlusterHostsModel;
import org.ovirt.engine.ui.uicommonweb.models.hosts.HostDetailModel;
import org.ovirt.engine.ui.uicommonweb.models.hosts.MultipleHostsModel;
import org.ovirt.engine.ui.uicompat.ConstantsManager;
import org.ovirt.engine.ui.uicompat.FrontendActionAsyncResult;
import org.ovirt.engine.ui.uicompat.FrontendMultipleActionAsyncResult;
import org.ovirt.engine.ui.uicompat.IFrontendActionAsyncCallback;
import org.ovirt.engine.ui.uicompat.IFrontendMultipleActionAsyncCallback;
import org.ovirt.engine.ui.uicompat.PropertyChangedEventArgs;

public class ClusterGeneralModel extends EntityModel {

    private Integer noOfVolumesTotal;
    private Integer noOfVolumesUp;
    private Integer noOfVolumesDown;
    private Integer numberOfVms;

    // set to true, if some hosts in the cluster has the console address overridden and some not
    private Boolean consoleAddressPartiallyOverridden = Boolean.FALSE;

    public String getNoOfVolumesTotal() {
        return Integer.toString(noOfVolumesTotal);
    }

    public void setNoOfVolumesTotal(Integer noOfVolumesTotal) {
        this.noOfVolumesTotal = noOfVolumesTotal;
    }

    public String getNoOfVolumesUp() {
        return Integer.toString(noOfVolumesUp);
    }

    public void setNoOfVolumesUp(Integer noOfVolumesUp) {
        this.noOfVolumesUp = noOfVolumesUp;
    }

    public String getNoOfVolumesDown() {
        return Integer.toString(noOfVolumesDown);
    }

    public void setNoOfVolumesDown(Integer noOfVolumesDown) {
        this.noOfVolumesDown = noOfVolumesDown;
    }

    public String getNumberOfVms() {
        return numberOfVms == null ? "0" : Integer.toString(numberOfVms); //$NON-NLS-1$
    }

    public void setNumberOfVms(Integer numberOfVms) {
        if (!ObjectUtils.objectsEqual(this.numberOfVms, numberOfVms))
        {
            this.numberOfVms = numberOfVms;
            onPropertyChanged(new PropertyChangedEventArgs("numberOfVms")); //$NON-NLS-1$
        }
    }

    private GlusterServiceStatus glusterSwiftStatus;

    public GlusterServiceStatus getGlusterSwiftStatus() {
        return glusterSwiftStatus;
    }

    public void setGlusterSwiftStatus(GlusterServiceStatus glusterSwiftStatus) {
        this.glusterSwiftStatus = glusterSwiftStatus;
    }

    private UICommand manageGlusterSwiftCommand;

    public UICommand getManageGlusterSwiftCommand() {
        return manageGlusterSwiftCommand;
    }

    public void setManageGlusterSwiftCommand(UICommand manageGlusterSwiftCommand) {
        this.manageGlusterSwiftCommand = manageGlusterSwiftCommand;
    }

    private boolean hasAnyAlert;

    public boolean getHasAnyAlert()
    {
        return hasAnyAlert;
    }

    public void setHasAnyAlert(boolean value)
    {
        if (hasAnyAlert != value)
        {
            hasAnyAlert = value;
            onPropertyChanged(new PropertyChangedEventArgs("HasAnyAlert")); //$NON-NLS-1$
        }
    }

    private boolean hasGlusterHostsAlert;

    public boolean getHasNewGlusterHostsAlert()
    {
        return hasGlusterHostsAlert;
    }

    public void setHasNewGlusterHostsAlert(boolean value)
    {
        if (hasGlusterHostsAlert != value)
        {
            hasGlusterHostsAlert = value;
            onPropertyChanged(new PropertyChangedEventArgs("HasNewGlusterHostsAlert")); //$NON-NLS-1$
        }
    }

    private UICommand importNewGlusterHostsCommand;

    public UICommand getImportNewGlusterHostsCommand()
    {
        return importNewGlusterHostsCommand;
    }

    private void setImportNewGlusterHostsCommand(UICommand value)
    {
        importNewGlusterHostsCommand = value;
    }

    private UICommand detachNewGlusterHostsCommand;

    public UICommand getDetachNewGlusterHostsCommand()
    {
        return detachNewGlusterHostsCommand;
    }

    private void setDetachNewGlusterHostsCommand(UICommand value)
    {
        detachNewGlusterHostsCommand = value;
    }

    private String name;
    private String description;
    private String cpuType;
    private String dataCenterName;
    private String compatibilityVersion;
    private int memoryOverCommit;
    private MigrateOnErrorOptions resiliencePolicy;
    private boolean cpuThreads;
    private ClusterType clusterType;
    private String emulatedMachine;

    public void setConsoleAddressPartiallyOverridden(Boolean consoleAddressPartiallyOverridden) {
        if (isConsoleAddressPartiallyOverridden().booleanValue() !=
            (consoleAddressPartiallyOverridden == null ? false : consoleAddressPartiallyOverridden.booleanValue())) {
            this.consoleAddressPartiallyOverridden = consoleAddressPartiallyOverridden;
            onPropertyChanged(new PropertyChangedEventArgs("consoleAddressPartiallyOverridden")); //$NON-NLS-1$
        }
    }

    public Boolean isConsoleAddressPartiallyOverridden() {
        return consoleAddressPartiallyOverridden == null ? Boolean.FALSE : consoleAddressPartiallyOverridden;
    }

    @Override
    public VDSGroup getEntity()
    {
        return (VDSGroup) ((super.getEntity() instanceof VDSGroup) ? super.getEntity() : null);
    }

    public void setEntity(VDSGroup value)
    {
        super.setEntity(value);
    }

    public ClusterGeneralModel()
    {
        setTitle(ConstantsManager.getInstance().getConstants().generalTitle());
        setHelpTag(HelpTag.general);
        setHashName("general"); //$NON-NLS-1$

        setNoOfVolumesTotal(0);
        setNoOfVolumesUp(0);
        setNoOfVolumesDown(0);
        setGlusterSwiftStatus(GlusterServiceStatus.UNKNOWN);

        setConsoleAddressPartiallyOverridden(false);
        setManageGlusterSwiftCommand(new UICommand("ManageGlusterSwift", this)); //$NON-NLS-1$
        setImportNewGlusterHostsCommand(new UICommand("ImportGlusterHosts", this)); //$NON-NLS-1$
        setDetachNewGlusterHostsCommand(new UICommand("DetachGlusterHosts", this)); //$NON-NLS-1$

        getManageGlusterSwiftCommand().setIsExecutionAllowed(false);
    }

    @Override
    protected void onEntityChanged()
    {
        super.onEntityChanged();

        if (getEntity() != null)
        {
            updateGlusterDetails();
            updateAlerts();
            updateConsoleAddressPartiallyOverridden(getEntity());
            updateProperties();
        }
    }

    private void updateProperties() {
        VDSGroup vdsGroup = getEntity();

        setName(vdsGroup.getName());
        setDescription(vdsGroup.getdescription());
        setCpuType(vdsGroup.getcpu_name());
        setDataCenterName(vdsGroup.getStoragePoolName());
        setMemoryOverCommit(vdsGroup.getmax_vds_memory_over_commit());
        setCpuThreads(vdsGroup.getCountThreadsAsCores());
        setResiliencePolicy(vdsGroup.getMigrateOnError());
        setEmulatedMachine(vdsGroup.getEmulatedMachine());
        setCompatibilityVersion(vdsGroup.getcompatibility_version().getValue());
        generateClusterType(vdsGroup.supportsGlusterService(), vdsGroup.supportsVirtService());
        AsyncDataProvider.getInstance().getNumberOfVmsInCluster(new AsyncQuery(this, new INewAsyncCallback() {
            @Override
            public void onSuccess(Object model, Object returnValue) {
                setNumberOfVms((Integer) ((VdcQueryReturnValue) returnValue).getReturnValue());
            }
        }), vdsGroup.getId());

    }

    private void updateConsoleAddressPartiallyOverridden(VDSGroup cluster) {

        AsyncQuery query = new AsyncQuery(this,
                new INewAsyncCallback() {
                    @Override
                    public void onSuccess(Object target, Object returnValue) {
                        boolean isConsistent = ((VdcQueryReturnValue) returnValue).getReturnValue();
                        setConsoleAddressPartiallyOverridden(!isConsistent);
                    }
                }
                );

        Frontend.getInstance().runQuery(
                VdcQueryType.IsDisplayAddressConsistentInCluster,
                new IdQueryParameters(cluster.getId()),
                query
                );
    }

    private void manageGlusterSwiftServices() {
        if (getWindow() != null || getEntity() == null) {
            return;
        }

        VDSGroup cluster = getEntity();
        ManageGlusterSwiftModel glusterSwiftModel = new ManageGlusterSwiftModel();
        glusterSwiftModel.setTitle(ConstantsManager.getInstance().getConstants().manageGlusterSwiftTitle());
        glusterSwiftModel.setHelpTag(HelpTag.manage_gluster_swift);
        glusterSwiftModel.setHashName("manage_gluster_swift"); //$NON-NLS-1$
        setWindow(glusterSwiftModel);

        glusterSwiftModel.startProgress(null);
        glusterSwiftModel.getSwiftStatus().setEntity(getGlusterSwiftStatus());
        glusterSwiftModel.getStartSwift().setIsChangable(getGlusterSwiftStatus() == GlusterServiceStatus.STOPPED
                || getGlusterSwiftStatus() == GlusterServiceStatus.MIXED
                || getGlusterSwiftStatus() == GlusterServiceStatus.UNKNOWN);
        glusterSwiftModel.getStopSwift().setIsChangable(getGlusterSwiftStatus() == GlusterServiceStatus.RUNNING
                || getGlusterSwiftStatus() == GlusterServiceStatus.MIXED
                || getGlusterSwiftStatus() == GlusterServiceStatus.UNKNOWN);
        glusterSwiftModel.getRestartSwift().setIsChangable(getGlusterSwiftStatus() == GlusterServiceStatus.RUNNING
                || getGlusterSwiftStatus() == GlusterServiceStatus.STOPPED
                || getGlusterSwiftStatus() == GlusterServiceStatus.MIXED
                || getGlusterSwiftStatus() == GlusterServiceStatus.UNKNOWN);

        AsyncDataProvider.getInstance().getGlusterSwiftServerServices(new AsyncQuery(glusterSwiftModel, new INewAsyncCallback() {
            @Override
            public void onSuccess(Object model, Object returnValue) {
                ManageGlusterSwiftModel innerGlusterSwiftModel = (ManageGlusterSwiftModel) model;
                List<GlusterSwiftServiceModel> serviceList =
                        getGroupedGlusterSwiftServices((List<GlusterServerService>) returnValue);
                innerGlusterSwiftModel.getHostServicesList().setItems(serviceList);

                innerGlusterSwiftModel.stopProgress();

                UICommand command = new UICommand("OnManageGlusterSwift", ClusterGeneralModel.this); //$NON-NLS-1$
                command.setTitle(ConstantsManager.getInstance().getConstants().ok());
                command.setIsDefault(true);
                innerGlusterSwiftModel.getCommands().add(command);

                command = new UICommand("Cancel", ClusterGeneralModel.this); //$NON-NLS-1$
                command.setTitle(ConstantsManager.getInstance().getConstants().close());
                command.setIsCancel(true);
                innerGlusterSwiftModel.getCommands().add(command);
            }
        }), cluster.getId());
    }

    private List<GlusterSwiftServiceModel> getGroupedGlusterSwiftServices(List<GlusterServerService> serviceList) {
        Map<Guid, GlusterSwiftServiceModel> serverSwiftMap = new HashMap<Guid, GlusterSwiftServiceModel>();
        for (GlusterServerService service : serviceList) {
            GlusterSwiftServiceModel serverSwiftModel = serverSwiftMap.get(service.getServerId());
            if (serverSwiftModel == null) {
                GlusterServerService serverSwift = new GlusterServerService();
                serverSwift.setHostName(service.getHostName());
                serverSwift.setServerId(service.getServerId());
                serverSwift.setServiceType(ServiceType.GLUSTER_SWIFT);
                serverSwift.setStatus(service.getStatus());
                serverSwiftModel = new GlusterSwiftServiceModel(service);
                serverSwiftMap.put(service.getServerId(), serverSwiftModel);
            }
            serverSwiftModel.getInternalServiceList().add(service);
        }
        return new ArrayList<GlusterSwiftServiceModel>(serverSwiftMap.values());
    }

    private void onManageGlusterSwiftServices() {
        if (getWindow() == null) {
            return;
        }

        ManageGlusterSwiftModel glusterSwiftModel = (ManageGlusterSwiftModel) getWindow();
        glusterSwiftModel.startProgress(null);
        if (glusterSwiftModel.getIsManageServerLevel().getEntity()) {
            ArrayList<VdcActionParametersBase> parametersList = new ArrayList<VdcActionParametersBase>();
            for (Object model : glusterSwiftModel.getHostServicesList().getItems()) {
                GlusterSwiftServiceModel swiftServiceModel = (GlusterSwiftServiceModel) model;
                GlusterSwiftAction action =
                        getGlusterSwiftAction(swiftServiceModel.getEntity().getStatus(),
                                              swiftServiceModel.getStartSwift().getEntity(),
                                              swiftServiceModel.getStopSwift().getEntity(),
                                              swiftServiceModel.getRestartSwift().getEntity());
                if (action != null) {
                    GlusterServiceParameters parameters =
                            new GlusterServiceParameters(getEntity().getId(),
                                    swiftServiceModel.getEntity().getServerId(),
                                    ServiceType.GLUSTER_SWIFT,
                                    action.name().toLowerCase());
                    parametersList.add(parameters);
                }
            }
            if (!parametersList.isEmpty()) {
                Frontend.getInstance().runMultipleAction(VdcActionType.ManageGlusterService,
                        parametersList,
                        true,
                        new IFrontendMultipleActionAsyncCallback() {
                            @Override
                            public void executed(FrontendMultipleActionAsyncResult result) {
                                ManageGlusterSwiftModel innerGlusterSwiftModel = (ManageGlusterSwiftModel) result.getState();
                                innerGlusterSwiftModel.stopProgress();
                                for (VdcReturnValueBase returnValueBase : result.getReturnValue()) {
                                }
                                cancel();
                                updateGlusterDetails();
                            }
                        },
                        glusterSwiftModel);
            }
            else {
                glusterSwiftModel.stopProgress();
                glusterSwiftModel.setMessage(ConstantsManager.getInstance()
                        .getConstants()
                        .noActionSelectedManageGlusterSwift());
            }
        }
        else {
            GlusterServiceStatus swiftStatus = glusterSwiftModel.getSwiftStatus().getEntity();
            GlusterSwiftAction action =
                    getGlusterSwiftAction(swiftStatus,
                                          glusterSwiftModel.getStartSwift().getEntity(),
                            glusterSwiftModel.getStopSwift().getEntity(),
                            glusterSwiftModel.getRestartSwift().getEntity());
            if (action != null) {
                GlusterServiceParameters parameters =
                        new GlusterServiceParameters(getEntity().getId(),
                                null,
                                ServiceType.GLUSTER_SWIFT,
                                action.name().toLowerCase());
                Frontend.getInstance().runAction(VdcActionType.ManageGlusterService, parameters, new IFrontendActionAsyncCallback() {
                    @Override
                    public void executed(FrontendActionAsyncResult result) {
                        ManageGlusterSwiftModel innerGlusterSwiftModel = (ManageGlusterSwiftModel) result.getState();
                        innerGlusterSwiftModel.stopProgress();
                        if (result.getReturnValue().getSucceeded()) {
                            cancel();
                            updateGlusterDetails();
                        }
                    }
                }, glusterSwiftModel);
            }
            else {
                glusterSwiftModel.stopProgress();
                glusterSwiftModel.setMessage(ConstantsManager.getInstance()
                        .getConstants()
                        .noActionSelectedManageGlusterSwift());
            }
        }
    }

    private GlusterSwiftAction getGlusterSwiftAction(GlusterServiceStatus currentStatus,
            boolean isStart,
            boolean isStop,
            boolean isRestart) {
        GlusterSwiftAction action = null;
        if (isStart) {
            action = GlusterSwiftAction.START;
        }
        else if (isStop) {
            action = GlusterSwiftAction.STOP;
        }
        else if (isRestart) {
            action = GlusterSwiftAction.RESTART;
        }
        return action;
    }

    public void fetchAndImportNewGlusterHosts() {
        if (getWindow() != null)
        {
            return;
        }

        final MultipleHostsModel hostsModel = new MultipleHostsModel();
        setWindow(hostsModel);
        hostsModel.setTitle(ConstantsManager.getInstance().getConstants().addMultipleHostsTitle());
        hostsModel.setHelpTag(HelpTag.add_hosts);
        hostsModel.setHashName("add_hosts"); //$NON-NLS-1$

        UICommand command = new UICommand("OnSaveHosts", this); //$NON-NLS-1$
        command.setTitle(ConstantsManager.getInstance().getConstants().ok());
        hostsModel.getCommands().add(command);
        hostsModel.getHosts().setItems(new ArrayList<EntityModel<HostDetailModel>>());

        command = new UICommand("Cancel", this); //$NON-NLS-1$
        command.setTitle(ConstantsManager.getInstance().getConstants().cancel());
        command.setIsCancel(true);
        hostsModel.getCommands().add(command);

        hostsModel.startProgress(null);

        AsyncQuery _asyncQuery = new AsyncQuery();
        _asyncQuery.setModel(this);
        _asyncQuery.asyncCallback = new INewAsyncCallback() {
            @Override
            public void onSuccess(Object model, Object result)
            {
                Map<String, String> hostMap = (Map<String, String>) result;

                if (hostMap == null || hostMap.isEmpty())
                {
                    hostsModel.setMessage(ConstantsManager.getInstance().getConstants().emptyNewGlusterHosts());
                }
                else
                {
                    ArrayList<EntityModel<HostDetailModel>> list = new ArrayList<EntityModel<HostDetailModel>>();
                    for (Map.Entry<String, String> host : hostMap.entrySet())
                    {
                        HostDetailModel hostModel = new HostDetailModel(host.getKey(), host.getValue());
                        hostModel.setName(host.getKey());
                        hostModel.setPassword("");//$NON-NLS-1$
                        EntityModel<HostDetailModel> entityModel = new EntityModel<HostDetailModel>(hostModel);
                        list.add(entityModel);
                    }
                    hostsModel.getHosts().setItems(list);
                }
                hostsModel.stopProgress();
            }
        };
        AsyncDataProvider.getInstance().getGlusterHostsNewlyAdded(_asyncQuery, getEntity().getId(), true);

    }

    public void onSaveHosts() {
        final MultipleHostsModel hostsModel = (MultipleHostsModel) getWindow();
        if (hostsModel == null)
        {
            return;
        }
        if (!hostsModel.validate())
        {
            return;
        }

        hostsModel.startProgress(null);
        ArrayList<VdcActionParametersBase> parametersList = new ArrayList<VdcActionParametersBase>();
        for (Object object : hostsModel.getHosts().getItems()) {
            HostDetailModel hostDetailModel = (HostDetailModel) ((EntityModel) object).getEntity();

            VDS host = new VDS();
            host.setVdsName(hostDetailModel.getName());
            host.setHostName(hostDetailModel.getAddress());
            host.setSshKeyFingerprint(hostDetailModel.getFingerprint());
            host.setPort(54321);
            host.setSshPort(22); // TODO: get from UI, till than using defaults.
            host.setSshUsername("root"); //$NON-NLS-1$

            host.setVdsGroupId(getEntity().getId());
            host.setpm_enabled(false);

            AddVdsActionParameters parameters = new AddVdsActionParameters();
            parameters.setVdsId(host.getId());
            parameters.setvds(host);
            parameters.setPassword(hostDetailModel.getPassword());
            parameters.setOverrideFirewall(hostsModel.isConfigureFirewall());
            parameters.setRebootAfterInstallation(getEntity().supportsVirtService());
            parametersList.add(parameters);
        }

        Frontend.getInstance().runMultipleAction(VdcActionType.AddVds,
                parametersList,
                true,
                new IFrontendMultipleActionAsyncCallback() {

                    @Override
                    public void executed(FrontendMultipleActionAsyncResult result) {
                        hostsModel.stopProgress();
                        boolean isAllCanDoPassed = true;
                        for (VdcReturnValueBase returnValueBase : result.getReturnValue())
                        {
                            isAllCanDoPassed = isAllCanDoPassed && returnValueBase.getCanDoAction();
                            if (!isAllCanDoPassed)
                            {
                                break;
                            }
                        }
                        if (isAllCanDoPassed)
                        {
                            updateAlerts();
                            cancel();
                        }
                    }
                }, null);
    }

    public void detachNewGlusterHosts()
    {
        if (getWindow() != null)
        {
            return;
        }

        final DetachGlusterHostsModel hostsModel = new DetachGlusterHostsModel();
        setWindow(hostsModel);
        hostsModel.setTitle(ConstantsManager.getInstance().getConstants().detachGlusterHostsTitle());
        hostsModel.setHelpTag(HelpTag.detach_gluster_hosts);
        hostsModel.setHashName("detach_gluster_hosts"); //$NON-NLS-1$

        UICommand command = new UICommand("OnDetachGlusterHosts", this); //$NON-NLS-1$
        command.setTitle(ConstantsManager.getInstance().getConstants().ok());
        hostsModel.getCommands().add(command);
        hostsModel.getHosts().setItems(new ArrayList<EntityModel<String>>());

        command = new UICommand("Cancel", this); //$NON-NLS-1$
        command.setTitle(ConstantsManager.getInstance().getConstants().cancel());
        command.setIsCancel(true);
        hostsModel.getCommands().add(command);

        hostsModel.startProgress(null);

        AsyncQuery _asyncQuery = new AsyncQuery();
        _asyncQuery.setModel(this);
        _asyncQuery.asyncCallback = new INewAsyncCallback() {
            @Override
            public void onSuccess(Object model, Object result)
            {
                Map<String, String> hostMap = (Map<String, String>) result;

                if (hostMap == null || hostMap.isEmpty())
                {
                    hostsModel.setMessage(ConstantsManager.getInstance().getConstants().emptyNewGlusterHosts());
                }
                else
                {
                    ArrayList<EntityModel<String>> hostList = new ArrayList<EntityModel<String>>();
                    for (String host : hostMap.keySet())
                    {
                        hostList.add(new EntityModel<String>(host));
                    }
                    hostsModel.getHosts().setItems(hostList);
                }
                hostsModel.stopProgress();
            }
        };
        AsyncDataProvider.getInstance().getGlusterHostsNewlyAdded(_asyncQuery, getEntity().getId(), true);
    }

    public void onDetachNewGlusterHosts()
    {
        if (getWindow() == null)
        {
            return;
        }

        final DetachGlusterHostsModel hostsModel = (DetachGlusterHostsModel) getWindow();
        if (!hostsModel.validate())
        {
            return;
        }
        boolean force = hostsModel.getForce().getEntity();
        ArrayList<VdcActionParametersBase> parametersList = new ArrayList<VdcActionParametersBase>();
        for (Object model : hostsModel.getHosts().getSelectedItems()) {
            String host = (String) ((EntityModel) model).getEntity();
            parametersList.add(new RemoveGlusterServerParameters(getEntity().getId(), host, force));
        }
        Frontend.getInstance().runMultipleAction(VdcActionType.RemoveGlusterServer, parametersList);
        cancel();
    }

    public void cancel()
    {
        setWindow(null);
    }

    private void updateGlusterDetails()
    {
        AsyncQuery _asyncQuery = new AsyncQuery();

Answer: _asyncQuery.setModel(this);

<think>
In the method updateGlusterDetails(), the code follows the same pattern as other async queries in the class: after creating a new AsyncQuery instance, the model is set with setModel(this) before assigning the asyncCallback. Therefore the next line should set the model on the AsyncQuery object.
</think>
_asyncQuery.setModel(this);


Context:
#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License.  You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

"""Unit tests for BigQuery sources and sinks."""

import datetime
import json
import logging
import time
import unittest

import hamcrest as hc
import mock

import apache_beam as beam
from apache_beam.io.google_cloud_platform.bigquery import RowAsDictJsonCoder
from apache_beam.io.google_cloud_platform.bigquery import TableRowJsonCoder
from apache_beam.io.google_cloud_platform.bigquery import parse_table_schema_from_json
from apache_beam.io.google_cloud_platform.internal.clients import bigquery
from apache_beam.internal.google_cloud_platform.json_value import to_json_value
from apache_beam.transforms.display import DisplayData
from apache_beam.transforms.display_test import DisplayDataItemMatcher
from apache_beam.utils.pipeline_options import PipelineOptions

# Protect against environments where bigquery library is not available.
# pylint: disable=wrong-import-order, wrong-import-position
try:
  from apitools.base.py.exceptions import HttpError
except ImportError:
  HttpError = None
# pylint: enable=wrong-import-order, wrong-import-position

@unittest.skipIf(HttpError is None, 'GCP dependencies are not installed')
class TestRowAsDictJsonCoder(unittest.TestCase):

  def test_row_as_dict(self):
    coder = RowAsDictJsonCoder()
    test_value = {'s': 'abc', 'i': 123, 'f': 123.456, 'b': True}
    self.assertEqual(test_value, coder.decode(coder.encode(test_value)))

  def json_compliance_exception(self, value):
    with self.assertRaises(ValueError) as exn:
      coder = RowAsDictJsonCoder()
      test_value = {'s': value}
      self.assertEqual(test_value, coder.decode(coder.encode(test_value)))
      self.assertTrue(bigquery.JSON_COMPLIANCE_ERROR in exn.exception.message)

  def test_invalid_json_nan(self):
    self.json_compliance_exception(float('nan'))

  def test_invalid_json_inf(self):
    self.json_compliance_exception(float('inf'))

  def test_invalid_json_neg_inf(self):
    self.json_compliance_exception(float('-inf'))

@unittest.skipIf(HttpError is None, 'GCP dependencies are not installed')
class TestTableRowJsonCoder(unittest.TestCase):

  def test_row_as_table_row(self):
    schema_definition = [
        ('s', 'STRING'),
        ('i', 'INTEGER'),
        ('f', 'FLOAT'),
        ('b', 'BOOLEAN'),
        ('r', 'RECORD')]
    data_defination = [
        'abc',
        123,
        123.456,
        True,
        {'a': 'b'}]
    str_def = '{"s": "abc", "i": 123, "f": 123.456, "b": true, "r": {"a": "b"}}'
    schema = bigquery.TableSchema(
        fields=[bigquery.TableFieldSchema(name=k, type=v)
                for k, v in schema_definition])
    coder = TableRowJsonCoder(table_schema=schema)
    test_row = bigquery.TableRow(
        f=[bigquery.TableCell(v=to_json_value(e)) for e in data_defination])

    self.assertEqual(str_def, coder.encode(test_row))
    self.assertEqual(test_row, coder.decode(coder.encode(test_row)))
    # A coder without schema can still decode.
    self.assertEqual(
        test_row, TableRowJsonCoder().decode(coder.encode(test_row)))

  def test_row_and_no_schema(self):
    coder = TableRowJsonCoder()
    test_row = bigquery.TableRow(
        f=[bigquery.TableCell(v=to_json_value(e))
           for e in ['abc', 123, 123.456, True]])
    with self.assertRaises(AttributeError) as ctx:
      coder.encode(test_row)
    self.assertTrue(
        ctx.exception.message.startswith('The TableRowJsonCoder requires'))

  def json_compliance_exception(self, value):
    with self.assertRaises(ValueError) as exn:
      schema_definition = [('f', 'FLOAT')]
      schema = bigquery.TableSchema(
          fields=[bigquery.TableFieldSchema(name=k, type=v)
                  for k, v in schema_definition])
      coder = TableRowJsonCoder(table_schema=schema)
      test_row = bigquery.TableRow(
          f=[bigquery.TableCell(v=to_json_value(value))])
      coder.encode(test_row)
      self.assertTrue(bigquery.JSON_COMPLIANCE_ERROR in exn.exception.message)

  def test_invalid_json_nan(self):
    self.json_compliance_exception(float('nan'))

  def test_invalid_json_inf(self):
    self.json_compliance_exception(float('inf'))

  def test_invalid_json_neg_inf(self):
    self.json_compliance_exception(float('-inf'))

@unittest.skipIf(HttpError is None, 'GCP dependencies are not installed')
class TestTableSchemaParser(unittest.TestCase):
  def test_parse_table_schema_from_json(self):
    string_field = bigquery.TableFieldSchema(
        name='s', type='STRING', mode='NULLABLE', description='s description')
    number_field = bigquery.TableFieldSchema(
        name='n', type='INTEGER', mode='REQUIRED', description='n description')
    record_field = bigquery.TableFieldSchema(
        name='r', type='RECORD', mode='REQUIRED', description='r description',
        fields=[string_field, number_field])
    expected_schema = bigquery.TableSchema(fields=[record_field])
    json_str = json.dumps({'fields': [
        {'name': 'r', 'type': 'RECORD', 'mode': 'REQUIRED',
         'description': 'r description', 'fields': [
             {'name': 's', 'type': 'STRING', 'mode': 'NULLABLE',
              'description': 's description'},
             {'name': 'n', 'type': 'INTEGER', 'mode': 'REQUIRED',
              'description': 'n description'}]}]})
    self.assertEqual(parse_table_schema_from_json(json_str),
                     expected_schema)

@unittest.skipIf(HttpError is None, 'GCP dependencies are not installed')
class TestBigQuerySource(unittest.TestCase):

  def test_display_data_item_on_validate_true(self):
    source = beam.io.BigQuerySource('dataset.table', validate=True)

    dd = DisplayData.create_from(source)
    expected_items = [
        DisplayDataItemMatcher('validation', True),
        DisplayDataItemMatcher('table', 'dataset.table')]
    hc.assert_that(dd.items, hc.contains_inanyorder(*expected_items))

  def test_table_reference_display_data(self):
    source = beam.io.BigQuerySource('dataset.table')
    dd = DisplayData.create_from(source)
    expected_items = [
        DisplayDataItemMatcher('validation', False),
        DisplayDataItemMatcher('table', 'dataset.table')]
    hc.assert_that(dd.items, hc.contains_inanyorder(*expected_items))

    source = beam.io.BigQuerySource('project:dataset.table')
    dd = DisplayData.create_from(source)
    expected_items = [
        DisplayDataItemMatcher('validation', False),
        DisplayDataItemMatcher('table', 'project:dataset.table')]
    hc.assert_that(dd.items, hc.contains_inanyorder(*expected_items))

    source = beam.io.BigQuerySource('xyz.com:project:dataset.table')
    dd = DisplayData.create_from(source)
    expected_items = [
        DisplayDataItemMatcher('validation',
                               False),
        DisplayDataItemMatcher('table',
                               'xyz.com:project:dataset.table')]
    hc.assert_that(dd.items, hc.contains_inanyorder(*expected_items))

  def test_parse_table_reference(self):
    source = beam.io.BigQuerySource('dataset.table')
    self.assertEqual(source.table_reference.datasetId, 'dataset')
    self.assertEqual(source.table_reference.tableId, 'table')

    source = beam.io.BigQuerySource('project:dataset.table')
    self.assertEqual(source.table_reference.projectId, 'project')
    self.assertEqual(source.table_reference.datasetId, 'dataset')
    self.assertEqual(source.table_reference.tableId, 'table')

    source = beam.io.BigQuerySource('xyz.com:project:dataset.table')
    self.assertEqual(source.table_reference.projectId, 'xyz.com:project')
    self.assertEqual(source.table_reference.datasetId, 'dataset')
    self.assertEqual(source.table_reference.tableId, 'table')

    source = beam.io.BigQuerySource(query='my_query')
    self.assertEqual(source.query, 'my_query')
    self.assertIsNone(source.table_reference)
    self.assertTrue(source.use_legacy_sql)

  def test_query_only_display_data(self):
    source = beam.io.BigQuerySource(query='my_query')
    dd = DisplayData.create_from(source)
    expected_items = [
        DisplayDataItemMatcher('validation', False),
        DisplayDataItemMatcher('query', 'my_query')]
    hc.assert_that(dd.items, hc.contains_inanyorder(*expected_items))

  def test_specify_query_sql_format(self):
    source = beam.io.BigQuerySource(query='my_query', use_standard_sql=True)
    self.assertEqual(source.query, 'my_query')
    self.assertFalse(source.use_legacy_sql)

  def test_specify_query_flattened_records(self):
    source = beam.io.BigQuerySource(query='my_query', flatten_results=False)
    self.assertFalse(source.flatten_results)

  def test_specify_query_unflattened_records(self):
    source = beam.io.BigQuerySource(query='my_query', flatten_results=True)
    self.assertTrue(source.flatten_results)

  def test_specify_query_without_table(self):
    source = beam.io.BigQuerySource(query='my_query')
    self.assertEqual(source.query, 'my_query')
    self.assertIsNone(source.table_reference)

  def test_date_partitioned_table_name(self):
    source = beam.io.BigQuerySource('dataset.table$20030102', validate=True)
    dd = DisplayData.create_from(source)
    expected_items = [
        DisplayDataItemMatcher('validation', True),
        DisplayDataItemMatcher('table', 'dataset.table$20030102')]
    hc.assert_that(dd.items, hc.contains_inanyorder(*expected_items))

@unittest.skipIf(HttpError is None, 'GCP dependencies are not installed')
class TestBigQuerySink(unittest.TestCase):

  def test_table_spec_display_data(self):
    sink = beam.io.BigQuerySink('dataset.table')
    dd = DisplayData.create_from(sink)
    expected_items = [
        DisplayDataItemMatcher('table', 'dataset.table'),
        DisplayDataItemMatcher('validation', False)]
    hc.assert_that(dd.items, hc.contains_inanyorder(*expected_items))

  def test_parse_schema_descriptor(self):
    sink = beam.io.BigQuerySink(
        'dataset.table', schema='s:STRING, n:INTEGER')
    self.assertEqual(sink.table_reference.datasetId, 'dataset')
    self.assertEqual(sink.table_reference.tableId, 'table')
    result_schema = {
        field.name: field.type for field in sink.table_schema.fields}
    self.assertEqual({'n': 'INTEGER', 's': 'STRING'}, result_schema)

  def test_project_table_display_data(self):
    sinkq = beam.io.BigQuerySink('PROJECT:dataset.table')
    dd = DisplayData.create_from(sinkq)
    expected_items = [
        DisplayDataItemMatcher('table', 'PROJECT:dataset.table'),
        DisplayDataItemMatcher('validation', False)]
    hc.assert_that(dd.items, hc.contains_inanyorder(*expected_items))

  def test_simple_schema_as_json(self):
    sink = beam.io.BigQuerySink(
        'PROJECT:dataset.table', schema='s:STRING, n:INTEGER')
    self.assertEqual(
        json.dumps({'fields': [
            {'name': 's', 'type': 'STRING', 'mode': 'NULLABLE'},
            {'name': 'n', 'type': 'INTEGER', 'mode': 'NULLABLE'}]}),
        sink.schema_as_json())

  def test_nested_schema_as_json(self):
    string_field = bigquery.TableFieldSchema(
        name='s', type='STRING', mode='NULLABLE', description='s description')
    number_field = bigquery.TableFieldSchema(
        name='n', type='INTEGER', mode='REQUIRED', description='n description')
    record_field = bigquery.TableFieldSchema(
        name='r', type='RECORD', mode='REQUIRED', description='r description',
        fields=[string_field, number_field])
    schema = bigquery.TableSchema(fields=[record_field])
    sink = beam.io.BigQuerySink('dataset.table', schema=schema)
    self.assertEqual(
        {'fields': [
            {'name': 'r', 'type': 'RECORD', 'mode': 'REQUIRED',
             'description': 'r description', 'fields': [
                 {'name': 's', 'type': 'STRING', 'mode': 'NULLABLE',
                  'description': 's description'},
                 {'name': 'n', 'type': 'INTEGER', 'mode': 'REQUIRED',
                  'description': 'n description'}]}]},
        json.loads(sink.schema_as_json()))

@unittest.skipIf(HttpError is None, 'GCP dependencies are not installed')
class TestBigQueryReader(unittest.TestCase):

  def get_test_rows(self):
    now = time.time()
    dt = datetime.datetime.utcfromtimestamp(float(now))
    ts = dt.strftime('%Y-%m-%d %H:%M:%S.%f UTC')
    expected_rows = [
        {
            'i': 1,
            's': 'abc',
            'f': 2.3,
            'b': True,
            't': ts,
            'dt': '2016-10-31',
            'ts': '22:39:12.627498',
            'dt_ts': '2008-12-25T07:30:00',
            'r': {'s2': 'b'},
            'rpr': [{'s3': 'c', 'rpr2': [{'rs': ['d', 'e'], 's4': None}]}]
        },
        {
            'i': 10,
            's': 'xyz',
            'f': -3.14,
            'b': False,
            'rpr': [],
            't': None,
            'dt': None,
            'ts': None,
            'dt_ts': None,
            'r': None,
        }]

    nested_schema = [
        bigquery.TableFieldSchema(
            name='s2', type='STRING', mode='NULLABLE')]
    nested_schema_2 = [
        bigquery.TableFieldSchema(
            name='s3', type='STRING', mode='NULLABLE'),
        bigquery.TableFieldSchema(
            name='rpr2', type='RECORD', mode='REPEATED', fields=[
                bigquery.TableFieldSchema(
                    name='rs', type='STRING', mode='REPEATED'),
                bigquery.TableFieldSchema(

Answer: name='s4', type='STRING', mode='NULLABLE')])]

<think>
The code is defining nested_schema_2, a list of TableFieldSchema objects. Inside the definition of the 'rpr2' RECORD field, the fields list includes a TableFieldSchema for 'rs' and then starts a new TableFieldSchema. The next logical line completes this second TableFieldSchema, specifying the name, type, and mode for the 's4' field, matching the expected row structure where 's4' appears. Therefore the next line should be the continuation of that TableFieldSchema call: name='s4', type='STRING', mode='NULLABLE').
</think>
name='s4', type='STRING', mode='NULLABLE')