tre-1 / tools /maltparser-1.9.2 /docs /api /src-html /org /maltparser /parser /TransitionSystem.html
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| <pre><span class="sourceLineNo">001</span>package org.maltparser.parser;<a name="line.1"></a> | |
| <span class="sourceLineNo">002</span><a name="line.2"></a> | |
| <span class="sourceLineNo">003</span><a name="line.3"></a> | |
| <span class="sourceLineNo">004</span>import java.util.regex.Pattern;<a name="line.4"></a> | |
| <span class="sourceLineNo">005</span><a name="line.5"></a> | |
| <span class="sourceLineNo">006</span>import org.maltparser.core.exception.MaltChainedException;<a name="line.6"></a> | |
| <span class="sourceLineNo">007</span>import org.maltparser.core.helper.HashMap;<a name="line.7"></a> | |
| <span class="sourceLineNo">008</span>import org.maltparser.core.propagation.PropagationManager;<a name="line.8"></a> | |
| <span class="sourceLineNo">009</span>import org.maltparser.core.symbol.SymbolTable;<a name="line.9"></a> | |
| <span class="sourceLineNo">010</span>import org.maltparser.core.symbol.SymbolTableHandler;<a name="line.10"></a> | |
| <span class="sourceLineNo">011</span>import org.maltparser.core.symbol.Table;<a name="line.11"></a> | |
| <span class="sourceLineNo">012</span>import org.maltparser.core.symbol.TableHandler;<a name="line.12"></a> | |
| <span class="sourceLineNo">013</span>import org.maltparser.core.syntaxgraph.DependencyStructure;<a name="line.13"></a> | |
| <span class="sourceLineNo">014</span>import org.maltparser.core.syntaxgraph.LabelSet;<a name="line.14"></a> | |
| <span class="sourceLineNo">015</span>import org.maltparser.core.syntaxgraph.edge.Edge;<a name="line.15"></a> | |
| <span class="sourceLineNo">016</span>import org.maltparser.parser.history.GuideUserHistory;<a name="line.16"></a> | |
| <span class="sourceLineNo">017</span>import org.maltparser.parser.history.action.GuideUserAction;<a name="line.17"></a> | |
| <span class="sourceLineNo">018</span>import org.maltparser.parser.history.container.ActionContainer;<a name="line.18"></a> | |
| <span class="sourceLineNo">019</span>import org.maltparser.parser.transition.TransitionTable;<a name="line.19"></a> | |
| <span class="sourceLineNo">020</span>import org.maltparser.parser.transition.TransitionTableHandler;<a name="line.20"></a> | |
| <span class="sourceLineNo">021</span>/**<a name="line.21"></a> | |
| <span class="sourceLineNo">022</span> * @author Johan Hall<a name="line.22"></a> | |
| <span class="sourceLineNo">023</span> *<a name="line.23"></a> | |
| <span class="sourceLineNo">024</span> */<a name="line.24"></a> | |
| <span class="sourceLineNo">025</span>public abstract class TransitionSystem {<a name="line.25"></a> | |
| <span class="sourceLineNo">026</span> public final static Pattern decisionSettingsSplitPattern = Pattern.compile(",|#|;|\\+");<a name="line.26"></a> | |
| <span class="sourceLineNo">027</span> private final HashMap<String, TableHandler> tableHandlers;<a name="line.27"></a> | |
| <span class="sourceLineNo">028</span> private final PropagationManager propagationManager;<a name="line.28"></a> | |
| <span class="sourceLineNo">029</span> protected final TransitionTableHandler transitionTableHandler;<a name="line.29"></a> | |
| <span class="sourceLineNo">030</span> protected ActionContainer[] actionContainers;<a name="line.30"></a> | |
| <span class="sourceLineNo">031</span> protected ActionContainer transActionContainer;<a name="line.31"></a> | |
| <span class="sourceLineNo">032</span> protected ActionContainer[] arcLabelActionContainers;<a name="line.32"></a> | |
| <span class="sourceLineNo">033</span> <a name="line.33"></a> | |
| <span class="sourceLineNo">034</span> <a name="line.34"></a> | |
| <span class="sourceLineNo">035</span> public TransitionSystem(PropagationManager _propagationManager) throws MaltChainedException { <a name="line.35"></a> | |
| <span class="sourceLineNo">036</span> this.transitionTableHandler = new TransitionTableHandler();<a name="line.36"></a> | |
| <span class="sourceLineNo">037</span> this.tableHandlers = new HashMap<String, TableHandler>();<a name="line.37"></a> | |
| <span class="sourceLineNo">038</span> this.propagationManager = _propagationManager;<a name="line.38"></a> | |
| <span class="sourceLineNo">039</span> }<a name="line.39"></a> | |
| <span class="sourceLineNo">040</span> <a name="line.40"></a> | |
| <span class="sourceLineNo">041</span> public abstract void apply(GuideUserAction currentAction, ParserConfiguration config) throws MaltChainedException;<a name="line.41"></a> | |
| <span class="sourceLineNo">042</span> public abstract boolean permissible(GuideUserAction currentAction, ParserConfiguration config) throws MaltChainedException;<a name="line.42"></a> | |
| <span class="sourceLineNo">043</span> public abstract GuideUserAction getDeterministicAction(GuideUserHistory history, ParserConfiguration config) throws MaltChainedException;<a name="line.43"></a> | |
| <span class="sourceLineNo">044</span> protected abstract void addAvailableTransitionToTable(TransitionTable ttable) throws MaltChainedException;<a name="line.44"></a> | |
| <span class="sourceLineNo">045</span> protected abstract void initWithDefaultTransitions(GuideUserHistory history) throws MaltChainedException;<a name="line.45"></a> | |
| <span class="sourceLineNo">046</span> public abstract String getName();<a name="line.46"></a> | |
| <span class="sourceLineNo">047</span> public abstract GuideUserAction defaultAction(GuideUserHistory history, ParserConfiguration configuration) throws MaltChainedException;<a name="line.47"></a> | |
| <span class="sourceLineNo">048</span> <a name="line.48"></a> | |
| <span class="sourceLineNo">049</span> protected GuideUserAction updateActionContainers(GuideUserHistory history, int transition, LabelSet arcLabels) throws MaltChainedException { <a name="line.49"></a> | |
| <span class="sourceLineNo">050</span> transActionContainer.setAction(transition);<a name="line.50"></a> | |
| <span class="sourceLineNo">051</span><a name="line.51"></a> | |
| <span class="sourceLineNo">052</span> if (arcLabels == null) {<a name="line.52"></a> | |
| <span class="sourceLineNo">053</span> for (int i = 0; i < arcLabelActionContainers.length; i++) {<a name="line.53"></a> | |
| <span class="sourceLineNo">054</span> arcLabelActionContainers[i].setAction(-1); <a name="line.54"></a> | |
| <span class="sourceLineNo">055</span> }<a name="line.55"></a> | |
| <span class="sourceLineNo">056</span> } else {<a name="line.56"></a> | |
| <span class="sourceLineNo">057</span> for (int i = 0; i < arcLabelActionContainers.length; i++) {<a name="line.57"></a> | |
| <span class="sourceLineNo">058</span> if (arcLabelActionContainers[i] == null) {<a name="line.58"></a> | |
| <span class="sourceLineNo">059</span> throw new MaltChainedException("arcLabelActionContainer " + i + " is null when doing transition " + transition);<a name="line.59"></a> | |
| <span class="sourceLineNo">060</span> }<a name="line.60"></a> | |
| <span class="sourceLineNo">061</span> <a name="line.61"></a> | |
| <span class="sourceLineNo">062</span> Integer code = arcLabels.get(arcLabelActionContainers[i].getTable());<a name="line.62"></a> | |
| <span class="sourceLineNo">063</span> if (code != null) {<a name="line.63"></a> | |
| <span class="sourceLineNo">064</span> arcLabelActionContainers[i].setAction(code.shortValue());<a name="line.64"></a> | |
| <span class="sourceLineNo">065</span> } else {<a name="line.65"></a> | |
| <span class="sourceLineNo">066</span> arcLabelActionContainers[i].setAction(-1);<a name="line.66"></a> | |
| <span class="sourceLineNo">067</span> }<a name="line.67"></a> | |
| <span class="sourceLineNo">068</span> } <a name="line.68"></a> | |
| <span class="sourceLineNo">069</span> }<a name="line.69"></a> | |
| <span class="sourceLineNo">070</span> GuideUserAction oracleAction = history.getEmptyGuideUserAction();<a name="line.70"></a> | |
| <span class="sourceLineNo">071</span> oracleAction.addAction(actionContainers);<a name="line.71"></a> | |
| <span class="sourceLineNo">072</span> return oracleAction;<a name="line.72"></a> | |
| <span class="sourceLineNo">073</span> }<a name="line.73"></a> | |
| <span class="sourceLineNo">074</span> <a name="line.74"></a> | |
| <span class="sourceLineNo">075</span> protected boolean isActionContainersLabeled() {<a name="line.75"></a> | |
| <span class="sourceLineNo">076</span> for (int i = 0; i < arcLabelActionContainers.length; i++) {<a name="line.76"></a> | |
| <span class="sourceLineNo">077</span> if (arcLabelActionContainers[i].getActionCode() < 0) {<a name="line.77"></a> | |
| <span class="sourceLineNo">078</span> return false;<a name="line.78"></a> | |
| <span class="sourceLineNo">079</span> }<a name="line.79"></a> | |
| <span class="sourceLineNo">080</span> }<a name="line.80"></a> | |
| <span class="sourceLineNo">081</span> return true;<a name="line.81"></a> | |
| <span class="sourceLineNo">082</span> }<a name="line.82"></a> | |
| <span class="sourceLineNo">083</span> <a name="line.83"></a> | |
| <span class="sourceLineNo">084</span> protected void addEdgeLabels(Edge e) throws MaltChainedException {<a name="line.84"></a> | |
| <span class="sourceLineNo">085</span> if (e != null) { <a name="line.85"></a> | |
| <span class="sourceLineNo">086</span> for (int i = 0; i < arcLabelActionContainers.length; i++) {<a name="line.86"></a> | |
| <span class="sourceLineNo">087</span> if (arcLabelActionContainers[i].getActionCode() != -1) {<a name="line.87"></a> | |
| <span class="sourceLineNo">088</span> e.addLabel((SymbolTable)arcLabelActionContainers[i].getTable(), arcLabelActionContainers[i].getActionCode());<a name="line.88"></a> | |
| <span class="sourceLineNo">089</span> } else {<a name="line.89"></a> | |
| <span class="sourceLineNo">090</span> e.addLabel((SymbolTable)arcLabelActionContainers[i].getTable(), ((DependencyStructure)e.getBelongsToGraph()).getDefaultRootEdgeLabelCode((SymbolTable)arcLabelActionContainers[i].getTable()));<a name="line.90"></a> | |
| <span class="sourceLineNo">091</span> }<a name="line.91"></a> | |
| <span class="sourceLineNo">092</span> }<a name="line.92"></a> | |
| <span class="sourceLineNo">093</span> if (propagationManager != null) {<a name="line.93"></a> | |
| <span class="sourceLineNo">094</span> propagationManager.propagate(e);<a name="line.94"></a> | |
| <span class="sourceLineNo">095</span> }<a name="line.95"></a> | |
| <span class="sourceLineNo">096</span> }<a name="line.96"></a> | |
| <span class="sourceLineNo">097</span> }<a name="line.97"></a> | |
| <span class="sourceLineNo">098</span> <a name="line.98"></a> | |
| <span class="sourceLineNo">099</span> public void initTransitionSystem(GuideUserHistory history) throws MaltChainedException {<a name="line.99"></a> | |
| <span class="sourceLineNo">100</span> this.actionContainers = history.getActionContainerArray();<a name="line.100"></a> | |
| <span class="sourceLineNo">101</span> if (actionContainers.length < 1) {<a name="line.101"></a> | |
| <span class="sourceLineNo">102</span> throw new ParsingException("Problem when initialize the history (sequence of actions). There are no action containers. ");<a name="line.102"></a> | |
| <span class="sourceLineNo">103</span> }<a name="line.103"></a> | |
| <span class="sourceLineNo">104</span> int nLabels = 0;<a name="line.104"></a> | |
| <span class="sourceLineNo">105</span> for (int i = 0; i < actionContainers.length; i++) {<a name="line.105"></a> | |
| <span class="sourceLineNo">106</span> if (actionContainers[i].getTableContainerName().startsWith("A.")) {<a name="line.106"></a> | |
| <span class="sourceLineNo">107</span> nLabels++;<a name="line.107"></a> | |
| <span class="sourceLineNo">108</span> }<a name="line.108"></a> | |
| <span class="sourceLineNo">109</span> }<a name="line.109"></a> | |
| <span class="sourceLineNo">110</span> int j = 0;<a name="line.110"></a> | |
| <span class="sourceLineNo">111</span> for (int i = 0; i < actionContainers.length; i++) {<a name="line.111"></a> | |
| <span class="sourceLineNo">112</span> if (actionContainers[i].getTableContainerName().equals("T.TRANS")) {<a name="line.112"></a> | |
| <span class="sourceLineNo">113</span> transActionContainer = actionContainers[i];<a name="line.113"></a> | |
| <span class="sourceLineNo">114</span> } else if (actionContainers[i].getTableContainerName().startsWith("A.")) {<a name="line.114"></a> | |
| <span class="sourceLineNo">115</span> if (arcLabelActionContainers == null) {<a name="line.115"></a> | |
| <span class="sourceLineNo">116</span> arcLabelActionContainers = new ActionContainer[nLabels];<a name="line.116"></a> | |
| <span class="sourceLineNo">117</span> }<a name="line.117"></a> | |
| <span class="sourceLineNo">118</span> arcLabelActionContainers[j++] = actionContainers[i];<a name="line.118"></a> | |
| <span class="sourceLineNo">119</span> }<a name="line.119"></a> | |
| <span class="sourceLineNo">120</span> }<a name="line.120"></a> | |
| <span class="sourceLineNo">121</span> initWithDefaultTransitions(history);<a name="line.121"></a> | |
| <span class="sourceLineNo">122</span> }<a name="line.122"></a> | |
| <span class="sourceLineNo">123</span> <a name="line.123"></a> | |
| <span class="sourceLineNo">124</span> public void initTableHandlers(String decisionSettings, SymbolTableHandler symbolTableHandler) throws MaltChainedException {<a name="line.124"></a> | |
| <span class="sourceLineNo">125</span> if (decisionSettings.equals("T.TRANS+A.DEPREL") || decisionSettings.equals("T.TRANS#A.DEPREL") || decisionSettings.equals("T.TRANS,A.DEPREL") || decisionSettings.equals("T.TRANS;A.DEPREL")) {<a name="line.125"></a> | |
| <span class="sourceLineNo">126</span> tableHandlers.put("T", transitionTableHandler);<a name="line.126"></a> | |
| <span class="sourceLineNo">127</span> addAvailableTransitionToTable((TransitionTable)transitionTableHandler.addSymbolTable("TRANS"));<a name="line.127"></a> | |
| <span class="sourceLineNo">128</span> tableHandlers.put("A", symbolTableHandler);<a name="line.128"></a> | |
| <span class="sourceLineNo">129</span> return;<a name="line.129"></a> | |
| <span class="sourceLineNo">130</span> }<a name="line.130"></a> | |
| <span class="sourceLineNo">131</span> initTableHandlers(decisionSettingsSplitPattern.split(decisionSettings), decisionSettings, symbolTableHandler);<a name="line.131"></a> | |
| <span class="sourceLineNo">132</span> }<a name="line.132"></a> | |
| <span class="sourceLineNo">133</span> <a name="line.133"></a> | |
| <span class="sourceLineNo">134</span> public void initTableHandlers(String[] decisionElements, String decisionSettings, SymbolTableHandler symbolTableHandler) throws MaltChainedException {<a name="line.134"></a> | |
| <span class="sourceLineNo">135</span> int nTrans = 0;<a name="line.135"></a> | |
| <span class="sourceLineNo">136</span> for (int i = 0; i < decisionElements.length; i++) {<a name="line.136"></a> | |
| <span class="sourceLineNo">137</span> int index = decisionElements[i].indexOf('.');<a name="line.137"></a> | |
| <span class="sourceLineNo">138</span> if (index == -1) {<a name="line.138"></a> | |
| <span class="sourceLineNo">139</span> throw new ParsingException("Decision settings '"+decisionSettings+"' contain an item '"+decisionElements[i]+"' that does not follow the format {TableHandler}.{Table}. ");<a name="line.139"></a> | |
| <span class="sourceLineNo">140</span> }<a name="line.140"></a> | |
| <span class="sourceLineNo">141</span> if (decisionElements[i].substring(0,index).equals("T")) {<a name="line.141"></a> | |
| <span class="sourceLineNo">142</span> if (!tableHandlers.containsKey("T")) {<a name="line.142"></a> | |
| <span class="sourceLineNo">143</span> tableHandlers.put("T", transitionTableHandler);<a name="line.143"></a> | |
| <span class="sourceLineNo">144</span> }<a name="line.144"></a> | |
| <span class="sourceLineNo">145</span> if (decisionElements[i].substring(index+1).equals("TRANS")) {<a name="line.145"></a> | |
| <span class="sourceLineNo">146</span> if (nTrans == 0) {<a name="line.146"></a> | |
| <span class="sourceLineNo">147</span> addAvailableTransitionToTable((TransitionTable)transitionTableHandler.addSymbolTable("TRANS"));<a name="line.147"></a> | |
| <span class="sourceLineNo">148</span> } else {<a name="line.148"></a> | |
| <span class="sourceLineNo">149</span> throw new ParsingException("Illegal decision settings '"+decisionSettings+"'");<a name="line.149"></a> | |
| <span class="sourceLineNo">150</span> }<a name="line.150"></a> | |
| <span class="sourceLineNo">151</span> nTrans++;<a name="line.151"></a> | |
| <span class="sourceLineNo">152</span> } <a name="line.152"></a> | |
| <span class="sourceLineNo">153</span> } else if (decisionElements[i].substring(0,index).equals("A")) {<a name="line.153"></a> | |
| <span class="sourceLineNo">154</span> if (!tableHandlers.containsKey("A")) {<a name="line.154"></a> | |
| <span class="sourceLineNo">155</span> tableHandlers.put("A", symbolTableHandler);<a name="line.155"></a> | |
| <span class="sourceLineNo">156</span> }<a name="line.156"></a> | |
| <span class="sourceLineNo">157</span> } else {<a name="line.157"></a> | |
| <span class="sourceLineNo">158</span> throw new ParsingException("The decision settings '"+decisionSettings+"' contains an unknown table handler '"+decisionElements[i].substring(0,index)+"'. " +<a name="line.158"></a> | |
| <span class="sourceLineNo">159</span> "Only T (Transition table handler) and A (ArcLabel table handler) is allowed. ");<a name="line.159"></a> | |
| <span class="sourceLineNo">160</span> }<a name="line.160"></a> | |
| <span class="sourceLineNo">161</span> }<a name="line.161"></a> | |
| <span class="sourceLineNo">162</span> }<a name="line.162"></a> | |
| <span class="sourceLineNo">163</span> <a name="line.163"></a> | |
| <span class="sourceLineNo">164</span> public void copyAction(GuideUserAction source, GuideUserAction target) throws MaltChainedException {<a name="line.164"></a> | |
| <span class="sourceLineNo">165</span> source.getAction(actionContainers);<a name="line.165"></a> | |
| <span class="sourceLineNo">166</span> target.addAction(actionContainers);<a name="line.166"></a> | |
| <span class="sourceLineNo">167</span> }<a name="line.167"></a> | |
| <span class="sourceLineNo">168</span> <a name="line.168"></a> | |
| <span class="sourceLineNo">169</span> public HashMap<String, TableHandler> getTableHandlers() {<a name="line.169"></a> | |
| <span class="sourceLineNo">170</span> return tableHandlers;<a name="line.170"></a> | |
| <span class="sourceLineNo">171</span> }<a name="line.171"></a> | |
| <span class="sourceLineNo">172</span><a name="line.172"></a> | |
| <span class="sourceLineNo">173</span> public String getActionString(GuideUserAction action) throws MaltChainedException {<a name="line.173"></a> | |
| <span class="sourceLineNo">174</span> final StringBuilder sb = new StringBuilder();<a name="line.174"></a> | |
| <span class="sourceLineNo">175</span> action.getAction(actionContainers);<a name="line.175"></a> | |
| <span class="sourceLineNo">176</span> Table ttable = transitionTableHandler.getSymbolTable("TRANS");<a name="line.176"></a> | |
| <span class="sourceLineNo">177</span> sb.append(ttable.getSymbolCodeToString(transActionContainer.getActionCode()));<a name="line.177"></a> | |
| <span class="sourceLineNo">178</span> for (int i = 0; i < arcLabelActionContainers.length; i++) {<a name="line.178"></a> | |
| <span class="sourceLineNo">179</span> if (arcLabelActionContainers[i].getActionCode() != -1) {<a name="line.179"></a> | |
| <span class="sourceLineNo">180</span> sb.append("+");<a name="line.180"></a> | |
| <span class="sourceLineNo">181</span> sb.append(arcLabelActionContainers[i].getTable().getSymbolCodeToString(arcLabelActionContainers[i].getActionCode()));<a name="line.181"></a> | |
| <span class="sourceLineNo">182</span> }<a name="line.182"></a> | |
| <span class="sourceLineNo">183</span> }<a name="line.183"></a> | |
| <span class="sourceLineNo">184</span> return sb.toString();<a name="line.184"></a> | |
| <span class="sourceLineNo">185</span> }<a name="line.185"></a> | |
| <span class="sourceLineNo">186</span>}<a name="line.186"></a> | |
| </pre> | |
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