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<FONT color="green">001</FONT> package org.maltparser.core.syntaxgraph;<a name="line.1"></a>
<FONT color="green">002</FONT> <a name="line.2"></a>
<FONT color="green">003</FONT> import java.util.Observable;<a name="line.3"></a>
<FONT color="green">004</FONT> import java.util.Set;<a name="line.4"></a>
<FONT color="green">005</FONT> <a name="line.5"></a>
<FONT color="green">006</FONT> import org.maltparser.core.exception.MaltChainedException;<a name="line.6"></a>
<FONT color="green">007</FONT> import org.maltparser.core.symbol.SymbolTable;<a name="line.7"></a>
<FONT color="green">008</FONT> <a name="line.8"></a>
<FONT color="green">009</FONT> /**<a name="line.9"></a>
<FONT color="green">010</FONT> *<a name="line.10"></a>
<FONT color="green">011</FONT> *<a name="line.11"></a>
<FONT color="green">012</FONT> * @author Johan Hall<a name="line.12"></a>
<FONT color="green">013</FONT> */<a name="line.13"></a>
<FONT color="green">014</FONT> public abstract class GraphElement extends Observable implements Element {<a name="line.14"></a>
<FONT color="green">015</FONT> private SyntaxGraph belongsToGraph;<a name="line.15"></a>
<FONT color="green">016</FONT> private LabelSet labelSet;<a name="line.16"></a>
<FONT color="green">017</FONT> <a name="line.17"></a>
<FONT color="green">018</FONT> public GraphElement() {<a name="line.18"></a>
<FONT color="green">019</FONT> belongsToGraph = null;<a name="line.19"></a>
<FONT color="green">020</FONT> labelSet = null;<a name="line.20"></a>
<FONT color="green">021</FONT> }<a name="line.21"></a>
<FONT color="green">022</FONT> <a name="line.22"></a>
<FONT color="green">023</FONT> /**<a name="line.23"></a>
<FONT color="green">024</FONT> * Adds a label (a string value) to the symbol table and to the graph element. <a name="line.24"></a>
<FONT color="green">025</FONT> * <a name="line.25"></a>
<FONT color="green">026</FONT> * @param table the symbol table<a name="line.26"></a>
<FONT color="green">027</FONT> * @param symbol a label symbol<a name="line.27"></a>
<FONT color="green">028</FONT> * @throws MaltChainedException<a name="line.28"></a>
<FONT color="green">029</FONT> */<a name="line.29"></a>
<FONT color="green">030</FONT> public void addLabel(SymbolTable table, String symbol) throws MaltChainedException {<a name="line.30"></a>
<FONT color="green">031</FONT> table.addSymbol(symbol);<a name="line.31"></a>
<FONT color="green">032</FONT> addLabel(table, table.getSymbolStringToCode(symbol));<a name="line.32"></a>
<FONT color="green">033</FONT> }<a name="line.33"></a>
<FONT color="green">034</FONT> <a name="line.34"></a>
<FONT color="green">035</FONT> /**<a name="line.35"></a>
<FONT color="green">036</FONT> * Adds a label (an integer value) to the symbol table and to the graph element.<a name="line.36"></a>
<FONT color="green">037</FONT> * <a name="line.37"></a>
<FONT color="green">038</FONT> * @param table the symbol table<a name="line.38"></a>
<FONT color="green">039</FONT> * @param code a label code<a name="line.39"></a>
<FONT color="green">040</FONT> * @throws MaltChainedException<a name="line.40"></a>
<FONT color="green">041</FONT> */<a name="line.41"></a>
<FONT color="green">042</FONT> public void addLabel(SymbolTable table, int code) throws MaltChainedException {<a name="line.42"></a>
<FONT color="green">043</FONT> if (table.getSymbolCodeToString(code) != null) {<a name="line.43"></a>
<FONT color="green">044</FONT> if (labelSet == null) {<a name="line.44"></a>
<FONT color="green">045</FONT> if (belongsToGraph == null) {<a name="line.45"></a>
<FONT color="green">046</FONT> throw new SyntaxGraphException("The graph element doesn't belong to any graph. ");<a name="line.46"></a>
<FONT color="green">047</FONT> }<a name="line.47"></a>
<FONT color="green">048</FONT> labelSet = belongsToGraph.checkOutNewLabelSet();<a name="line.48"></a>
<FONT color="green">049</FONT> }<a name="line.49"></a>
<FONT color="green">050</FONT> labelSet.put(table, code);<a name="line.50"></a>
<FONT color="green">051</FONT> setChanged(); <a name="line.51"></a>
<FONT color="green">052</FONT> notifyObservers(table);<a name="line.52"></a>
<FONT color="green">053</FONT> }<a name="line.53"></a>
<FONT color="green">054</FONT> }<a name="line.54"></a>
<FONT color="green">055</FONT> <a name="line.55"></a>
<FONT color="green">056</FONT> /**<a name="line.56"></a>
<FONT color="green">057</FONT> * Adds the labels of the label set to the label set of the graph element.<a name="line.57"></a>
<FONT color="green">058</FONT> * <a name="line.58"></a>
<FONT color="green">059</FONT> * @param labels a label set.<a name="line.59"></a>
<FONT color="green">060</FONT> * @throws MaltChainedException<a name="line.60"></a>
<FONT color="green">061</FONT> */<a name="line.61"></a>
<FONT color="green">062</FONT> public void addLabel(LabelSet labels) throws MaltChainedException {<a name="line.62"></a>
<FONT color="green">063</FONT> if (labels != null) {<a name="line.63"></a>
<FONT color="green">064</FONT> for (SymbolTable table : labels.keySet()) {<a name="line.64"></a>
<FONT color="green">065</FONT> addLabel(table, labels.get(table));<a name="line.65"></a>
<FONT color="green">066</FONT> }<a name="line.66"></a>
<FONT color="green">067</FONT> }<a name="line.67"></a>
<FONT color="green">068</FONT> }<a name="line.68"></a>
<FONT color="green">069</FONT> <a name="line.69"></a>
<FONT color="green">070</FONT> /**<a name="line.70"></a>
<FONT color="green">071</FONT> * Returns <i>true</i> if the graph element has a label for the symbol table, otherwise <i>false</i>.<a name="line.71"></a>
<FONT color="green">072</FONT> * <a name="line.72"></a>
<FONT color="green">073</FONT> * @param table the symbol table<a name="line.73"></a>
<FONT color="green">074</FONT> * @return <i>true</i> if the graph element has a label for the symbol table, otherwise <i>false</i>.<a name="line.74"></a>
<FONT color="green">075</FONT> * @throws MaltChainedException<a name="line.75"></a>
<FONT color="green">076</FONT> */<a name="line.76"></a>
<FONT color="green">077</FONT> public boolean hasLabel(SymbolTable table) throws MaltChainedException {<a name="line.77"></a>
<FONT color="green">078</FONT> if (labelSet != null) {<a name="line.78"></a>
<FONT color="green">079</FONT> return labelSet.containsKey(table);<a name="line.79"></a>
<FONT color="green">080</FONT> }<a name="line.80"></a>
<FONT color="green">081</FONT> return false;<a name="line.81"></a>
<FONT color="green">082</FONT> }<a name="line.82"></a>
<FONT color="green">083</FONT> <a name="line.83"></a>
<FONT color="green">084</FONT> /**<a name="line.84"></a>
<FONT color="green">085</FONT> * Returns the label symbol(a string representation) of the symbol table if it exists, otherwise <a name="line.85"></a>
<FONT color="green">086</FONT> * an exception is thrown.<a name="line.86"></a>
<FONT color="green">087</FONT> * <a name="line.87"></a>
<FONT color="green">088</FONT> * @param table the symbol table<a name="line.88"></a>
<FONT color="green">089</FONT> * @return the label (a string representation) of the symbol table if it exists.<a name="line.89"></a>
<FONT color="green">090</FONT> * @throws MaltChainedException<a name="line.90"></a>
<FONT color="green">091</FONT> */<a name="line.91"></a>
<FONT color="green">092</FONT> public String getLabelSymbol(SymbolTable table) throws MaltChainedException {<a name="line.92"></a>
<FONT color="green">093</FONT> Integer code = labelSet.get(table);<a name="line.93"></a>
<FONT color="green">094</FONT> if (code == null) {<a name="line.94"></a>
<FONT color="green">095</FONT> throw new SyntaxGraphException("No label symbol available for label '"+table.getName()+"'.");<a name="line.95"></a>
<FONT color="green">096</FONT> }<a name="line.96"></a>
<FONT color="green">097</FONT> return table.getSymbolCodeToString(code);<a name="line.97"></a>
<FONT color="green">098</FONT> }<a name="line.98"></a>
<FONT color="green">099</FONT> <a name="line.99"></a>
<FONT color="green">100</FONT> /**<a name="line.100"></a>
<FONT color="green">101</FONT> * Returns the label code (an integer representation) of the symbol table if it exists, otherwise <a name="line.101"></a>
<FONT color="green">102</FONT> * an exception is thrown.<a name="line.102"></a>
<FONT color="green">103</FONT> * <a name="line.103"></a>
<FONT color="green">104</FONT> * @param table the symbol table<a name="line.104"></a>
<FONT color="green">105</FONT> * @return the label code (an integer representation) of the symbol table if it exists<a name="line.105"></a>
<FONT color="green">106</FONT> * @throws MaltChainedException<a name="line.106"></a>
<FONT color="green">107</FONT> */<a name="line.107"></a>
<FONT color="green">108</FONT> public int getLabelCode(SymbolTable table) throws MaltChainedException {<a name="line.108"></a>
<FONT color="green">109</FONT> Integer code = labelSet.get(table);<a name="line.109"></a>
<FONT color="green">110</FONT> if (code == null) {<a name="line.110"></a>
<FONT color="green">111</FONT> throw new SyntaxGraphException("No label symbol available for label '"+table.getName()+"'.");<a name="line.111"></a>
<FONT color="green">112</FONT> }<a name="line.112"></a>
<FONT color="green">113</FONT> // if (code != null) {<a name="line.113"></a>
<FONT color="green">114</FONT> // return -1;<a name="line.114"></a>
<FONT color="green">115</FONT> // }<a name="line.115"></a>
<FONT color="green">116</FONT> return code.intValue();<a name="line.116"></a>
<FONT color="green">117</FONT> }<a name="line.117"></a>
<FONT color="green">118</FONT> <a name="line.118"></a>
<FONT color="green">119</FONT> /**<a name="line.119"></a>
<FONT color="green">120</FONT> * Returns <i>true</i> if the graph element has one or more labels, otherwise <i>false</i>.<a name="line.120"></a>
<FONT color="green">121</FONT> * <a name="line.121"></a>
<FONT color="green">122</FONT> * @return <i>true</i> if the graph element has one or more labels, otherwise <i>false</i>.<a name="line.122"></a>
<FONT color="green">123</FONT> */<a name="line.123"></a>
<FONT color="green">124</FONT> public boolean isLabeled() {<a name="line.124"></a>
<FONT color="green">125</FONT> if (labelSet == null) {<a name="line.125"></a>
<FONT color="green">126</FONT> return false;<a name="line.126"></a>
<FONT color="green">127</FONT> }<a name="line.127"></a>
<FONT color="green">128</FONT> return labelSet.size() > 0;<a name="line.128"></a>
<FONT color="green">129</FONT> }<a name="line.129"></a>
<FONT color="green">130</FONT> <a name="line.130"></a>
<FONT color="green">131</FONT> /**<a name="line.131"></a>
<FONT color="green">132</FONT> * Returns the number of labels of the graph element.<a name="line.132"></a>
<FONT color="green">133</FONT> * <a name="line.133"></a>
<FONT color="green">134</FONT> * @return the number of labels of the graph element.<a name="line.134"></a>
<FONT color="green">135</FONT> */<a name="line.135"></a>
<FONT color="green">136</FONT> public int nLabels() {<a name="line.136"></a>
<FONT color="green">137</FONT> if (labelSet == null) {<a name="line.137"></a>
<FONT color="green">138</FONT> return 0;<a name="line.138"></a>
<FONT color="green">139</FONT> }<a name="line.139"></a>
<FONT color="green">140</FONT> return labelSet.size();<a name="line.140"></a>
<FONT color="green">141</FONT> }<a name="line.141"></a>
<FONT color="green">142</FONT> <a name="line.142"></a>
<FONT color="green">143</FONT> /**<a name="line.143"></a>
<FONT color="green">144</FONT> * Returns a set of symbol tables (labeling functions or label types) that labels the graph element.<a name="line.144"></a>
<FONT color="green">145</FONT> * <a name="line.145"></a>
<FONT color="green">146</FONT> * @return a set of symbol tables (labeling functions or label types)<a name="line.146"></a>
<FONT color="green">147</FONT> */<a name="line.147"></a>
<FONT color="green">148</FONT> public Set<SymbolTable> getLabelTypes() {<a name="line.148"></a>
<FONT color="green">149</FONT> if (labelSet == null) {<a name="line.149"></a>
<FONT color="green">150</FONT> return null;<a name="line.150"></a>
<FONT color="green">151</FONT> }<a name="line.151"></a>
<FONT color="green">152</FONT> return labelSet.keySet();<a name="line.152"></a>
<FONT color="green">153</FONT> }<a name="line.153"></a>
<FONT color="green">154</FONT> <a name="line.154"></a>
<FONT color="green">155</FONT> /**<a name="line.155"></a>
<FONT color="green">156</FONT> * Returns the label set.<a name="line.156"></a>
<FONT color="green">157</FONT> * <a name="line.157"></a>
<FONT color="green">158</FONT> * @return the label set.<a name="line.158"></a>
<FONT color="green">159</FONT> */<a name="line.159"></a>
<FONT color="green">160</FONT> public LabelSet getLabelSet() {<a name="line.160"></a>
<FONT color="green">161</FONT> return labelSet;<a name="line.161"></a>
<FONT color="green">162</FONT> }<a name="line.162"></a>
<FONT color="green">163</FONT> <a name="line.163"></a>
<FONT color="green">164</FONT> public void removeLabel(SymbolTable table) throws MaltChainedException {<a name="line.164"></a>
<FONT color="green">165</FONT> if (labelSet != null) {<a name="line.165"></a>
<FONT color="green">166</FONT> labelSet.remove(table);<a name="line.166"></a>
<FONT color="green">167</FONT> }<a name="line.167"></a>
<FONT color="green">168</FONT> }<a name="line.168"></a>
<FONT color="green">169</FONT> <a name="line.169"></a>
<FONT color="green">170</FONT> public void removeLabels() throws MaltChainedException {<a name="line.170"></a>
<FONT color="green">171</FONT> if (labelSet != null && belongsToGraph != null) {<a name="line.171"></a>
<FONT color="green">172</FONT> belongsToGraph.checkInLabelSet(labelSet);<a name="line.172"></a>
<FONT color="green">173</FONT> }<a name="line.173"></a>
<FONT color="green">174</FONT> labelSet = null;<a name="line.174"></a>
<FONT color="green">175</FONT> }<a name="line.175"></a>
<FONT color="green">176</FONT> <a name="line.176"></a>
<FONT color="green">177</FONT> /**<a name="line.177"></a>
<FONT color="green">178</FONT> * Returns the graph (structure) in which the graph element belongs to. <a name="line.178"></a>
<FONT color="green">179</FONT> * <a name="line.179"></a>
<FONT color="green">180</FONT> * @return the graph (structure) in which the graph element belongs to. <a name="line.180"></a>
<FONT color="green">181</FONT> */<a name="line.181"></a>
<FONT color="green">182</FONT> public SyntaxGraph getBelongsToGraph() {<a name="line.182"></a>
<FONT color="green">183</FONT> return belongsToGraph;<a name="line.183"></a>
<FONT color="green">184</FONT> }<a name="line.184"></a>
<FONT color="green">185</FONT> <a name="line.185"></a>
<FONT color="green">186</FONT> /**<a name="line.186"></a>
<FONT color="green">187</FONT> * Sets the graph (structure) in which the graph element belongs to. <a name="line.187"></a>
<FONT color="green">188</FONT> * <a name="line.188"></a>
<FONT color="green">189</FONT> * @param belongsToGraph a graph (structure).<a name="line.189"></a>
<FONT color="green">190</FONT> */<a name="line.190"></a>
<FONT color="green">191</FONT> public void setBelongsToGraph(SyntaxGraph belongsToGraph) {<a name="line.191"></a>
<FONT color="green">192</FONT> this.belongsToGraph = belongsToGraph;<a name="line.192"></a>
<FONT color="green">193</FONT> addObserver(belongsToGraph);<a name="line.193"></a>
<FONT color="green">194</FONT> }<a name="line.194"></a>
<FONT color="green">195</FONT> <a name="line.195"></a>
<FONT color="green">196</FONT> <a name="line.196"></a>
<FONT color="green">197</FONT> /**<a name="line.197"></a>
<FONT color="green">198</FONT> * Resets the graph element.<a name="line.198"></a>
<FONT color="green">199</FONT> * <a name="line.199"></a>
<FONT color="green">200</FONT> * @throws MaltChainedException<a name="line.200"></a>
<FONT color="green">201</FONT> */<a name="line.201"></a>
<FONT color="green">202</FONT> public void clear() throws MaltChainedException {<a name="line.202"></a>
<FONT color="green">203</FONT> if (labelSet != null && belongsToGraph != null) {<a name="line.203"></a>
<FONT color="green">204</FONT> belongsToGraph.checkInLabelSet(labelSet);<a name="line.204"></a>
<FONT color="green">205</FONT> }<a name="line.205"></a>
<FONT color="green">206</FONT> labelSet = null;<a name="line.206"></a>
<FONT color="green">207</FONT> deleteObserver(belongsToGraph);<a name="line.207"></a>
<FONT color="green">208</FONT> belongsToGraph = null;<a name="line.208"></a>
<FONT color="green">209</FONT> }<a name="line.209"></a>
<FONT color="green">210</FONT> <a name="line.210"></a>
<FONT color="green">211</FONT> public boolean equals(Object obj) {<a name="line.211"></a>
<FONT color="green">212</FONT> GraphElement ge = (GraphElement)obj;<a name="line.212"></a>
<FONT color="green">213</FONT> return belongsToGraph == ge.getBelongsToGraph() && labelSet == null ? ge.getLabelSet() == null : labelSet.equals(ge.getLabelSet()); <a name="line.213"></a>
<FONT color="green">214</FONT> }<a name="line.214"></a>
<FONT color="green">215</FONT> <a name="line.215"></a>
<FONT color="green">216</FONT> public int hashCode() {<a name="line.216"></a>
<FONT color="green">217</FONT> int hash = 7;<a name="line.217"></a>
<FONT color="green">218</FONT> hash = 31 * hash + (null == belongsToGraph ? 0 : belongsToGraph.hashCode());<a name="line.218"></a>
<FONT color="green">219</FONT> return 31 * hash + (null == labelSet ? 0 : labelSet.hashCode());<a name="line.219"></a>
<FONT color="green">220</FONT> }<a name="line.220"></a>
<FONT color="green">221</FONT> <a name="line.221"></a>
<FONT color="green">222</FONT> public int compareTo(GraphElement o) {<a name="line.222"></a>
<FONT color="green">223</FONT> final int BEFORE = -1;<a name="line.223"></a>
<FONT color="green">224</FONT> final int EQUAL = 0;<a name="line.224"></a>
<FONT color="green">225</FONT> final int AFTER = 1;<a name="line.225"></a>
<FONT color="green">226</FONT> if ( this == o ) return EQUAL;<a name="line.226"></a>
<FONT color="green">227</FONT> <a name="line.227"></a>
<FONT color="green">228</FONT> if (this.labelSet == null && o.labelSet != null) return BEFORE;<a name="line.228"></a>
<FONT color="green">229</FONT> if (this.labelSet != null && o.labelSet == null) return AFTER;<a name="line.229"></a>
<FONT color="green">230</FONT> if (this.labelSet == null && o.labelSet == null) return EQUAL;<a name="line.230"></a>
<FONT color="green">231</FONT> <a name="line.231"></a>
<FONT color="green">232</FONT> int comparison = EQUAL;<a name="line.232"></a>
<FONT color="green">233</FONT> for (SymbolTable table : labelSet.keySet()) {<a name="line.233"></a>
<FONT color="green">234</FONT> Integer ocode = o.labelSet.get(table);<a name="line.234"></a>
<FONT color="green">235</FONT> Integer tcode = labelSet.get(table);<a name="line.235"></a>
<FONT color="green">236</FONT> if (ocode != null && tcode != null) {<a name="line.236"></a>
<FONT color="green">237</FONT> if (!ocode.equals(tcode)) {<a name="line.237"></a>
<FONT color="green">238</FONT> try {<a name="line.238"></a>
<FONT color="green">239</FONT> comparison = table.getSymbolCodeToString(tcode).compareTo(table.getSymbolCodeToString(ocode));<a name="line.239"></a>
<FONT color="green">240</FONT> if ( comparison != EQUAL ) return comparison;<a name="line.240"></a>
<FONT color="green">241</FONT> } catch (MaltChainedException e) { }<a name="line.241"></a>
<FONT color="green">242</FONT> }<a name="line.242"></a>
<FONT color="green">243</FONT> }<a name="line.243"></a>
<FONT color="green">244</FONT> }<a name="line.244"></a>
<FONT color="green">245</FONT> return EQUAL;<a name="line.245"></a>
<FONT color="green">246</FONT> }<a name="line.246"></a>
<FONT color="green">247</FONT> <a name="line.247"></a>
<FONT color="green">248</FONT> public String toString() {<a name="line.248"></a>
<FONT color="green">249</FONT> final StringBuilder sb = new StringBuilder();<a name="line.249"></a>
<FONT color="green">250</FONT> if (labelSet != null) {<a name="line.250"></a>
<FONT color="green">251</FONT> for (SymbolTable table : labelSet.keySet()) {<a name="line.251"></a>
<FONT color="green">252</FONT> try {<a name="line.252"></a>
<FONT color="green">253</FONT> sb.append(table.getName());<a name="line.253"></a>
<FONT color="green">254</FONT> sb.append(':');<a name="line.254"></a>
<FONT color="green">255</FONT> sb.append(getLabelSymbol(table));<a name="line.255"></a>
<FONT color="green">256</FONT> } catch (MaltChainedException e) {<a name="line.256"></a>
<FONT color="green">257</FONT> System.err.println("Print error : "+e.getMessageChain());<a name="line.257"></a>
<FONT color="green">258</FONT> }<a name="line.258"></a>
<FONT color="green">259</FONT> sb.append(' ');<a name="line.259"></a>
<FONT color="green">260</FONT> }<a name="line.260"></a>
<FONT color="green">261</FONT> }<a name="line.261"></a>
<FONT color="green">262</FONT> return sb.toString();<a name="line.262"></a>
<FONT color="green">263</FONT> }<a name="line.263"></a>
<FONT color="green">264</FONT> }<a name="line.264"></a>
</PRE>
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