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<FONT color="green">001</FONT> package org.maltparser.core.syntaxgraph.feature;<a name="line.1"></a>
<FONT color="green">002</FONT> <a name="line.2"></a>
<FONT color="green">003</FONT> import java.util.LinkedHashMap;<a name="line.3"></a>
<FONT color="green">004</FONT> import java.util.Map;<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.feature.function.AddressFunction;<a name="line.7"></a>
<FONT color="green">008</FONT> import org.maltparser.core.feature.function.FeatureFunction;<a name="line.8"></a>
<FONT color="green">009</FONT> import org.maltparser.core.feature.value.AddressValue;<a name="line.9"></a>
<FONT color="green">010</FONT> import org.maltparser.core.feature.value.FeatureValue;<a name="line.10"></a>
<FONT color="green">011</FONT> import org.maltparser.core.feature.value.SingleFeatureValue;<a name="line.11"></a>
<FONT color="green">012</FONT> import org.maltparser.core.io.dataformat.ColumnDescription;<a name="line.12"></a>
<FONT color="green">013</FONT> import org.maltparser.core.symbol.SymbolTable;<a name="line.13"></a>
<FONT color="green">014</FONT> import org.maltparser.core.symbol.SymbolTableHandler;<a name="line.14"></a>
<FONT color="green">015</FONT> import org.maltparser.core.symbol.nullvalue.NullValues.NullValueId;<a name="line.15"></a>
<FONT color="green">016</FONT> import org.maltparser.core.syntaxgraph.SyntaxGraphException;<a name="line.16"></a>
<FONT color="green">017</FONT> import org.maltparser.core.syntaxgraph.node.DependencyNode;<a name="line.17"></a>
<FONT color="green">018</FONT> <a name="line.18"></a>
<FONT color="green">019</FONT> public class NumOfFeature implements FeatureFunction {<a name="line.19"></a>
<FONT color="green">020</FONT> public enum NumOfRelation {<a name="line.20"></a>
<FONT color="green">021</FONT> LDEP, RDEP, DEP<a name="line.21"></a>
<FONT color="green">022</FONT> };<a name="line.22"></a>
<FONT color="green">023</FONT> protected AddressFunction addressFunction;<a name="line.23"></a>
<FONT color="green">024</FONT> protected SymbolTableHandler tableHandler;<a name="line.24"></a>
<FONT color="green">025</FONT> protected SymbolTable table;<a name="line.25"></a>
<FONT color="green">026</FONT> protected SingleFeatureValue featureValue;<a name="line.26"></a>
<FONT color="green">027</FONT> protected NumOfRelation numOfRelation;<a name="line.27"></a>
<FONT color="green">028</FONT> protected String numOfRelationName;<a name="line.28"></a>
<FONT color="green">029</FONT> protected String normalizationString;<a name="line.29"></a>
<FONT color="green">030</FONT> protected Map<Integer,String> normalization;<a name="line.30"></a>
<FONT color="green">031</FONT> <a name="line.31"></a>
<FONT color="green">032</FONT> public NumOfFeature(SymbolTableHandler tableHandler) throws MaltChainedException {<a name="line.32"></a>
<FONT color="green">033</FONT> super();<a name="line.33"></a>
<FONT color="green">034</FONT> featureValue = new SingleFeatureValue(this);<a name="line.34"></a>
<FONT color="green">035</FONT> setTableHandler(tableHandler);<a name="line.35"></a>
<FONT color="green">036</FONT> normalization = new LinkedHashMap<Integer,String>();<a name="line.36"></a>
<FONT color="green">037</FONT> }<a name="line.37"></a>
<FONT color="green">038</FONT> <a name="line.38"></a>
<FONT color="green">039</FONT> /**<a name="line.39"></a>
<FONT color="green">040</FONT> * Initialize the distance feature function<a name="line.40"></a>
<FONT color="green">041</FONT> * <a name="line.41"></a>
<FONT color="green">042</FONT> * @param arguments an array of arguments with the type returned by getParameterTypes()<a name="line.42"></a>
<FONT color="green">043</FONT> * @throws MaltChainedException<a name="line.43"></a>
<FONT color="green">044</FONT> */<a name="line.44"></a>
<FONT color="green">045</FONT> public void initialize(Object[] arguments) throws MaltChainedException {<a name="line.45"></a>
<FONT color="green">046</FONT> if (arguments.length != 3) {<a name="line.46"></a>
<FONT color="green">047</FONT> throw new SyntaxGraphException("Could not initialize NumOfFeature: number of arguments are not correct. ");<a name="line.47"></a>
<FONT color="green">048</FONT> }<a name="line.48"></a>
<FONT color="green">049</FONT> // Checks that the two arguments are address functions<a name="line.49"></a>
<FONT color="green">050</FONT> if (!(arguments[0] instanceof AddressFunction)) {<a name="line.50"></a>
<FONT color="green">051</FONT> throw new SyntaxGraphException("Could not initialize NumOfFeature: the first argument is not an address function. ");<a name="line.51"></a>
<FONT color="green">052</FONT> }<a name="line.52"></a>
<FONT color="green">053</FONT> if (!(arguments[1] instanceof java.lang.String)) {<a name="line.53"></a>
<FONT color="green">054</FONT> throw new SyntaxGraphException("Could not initialize NumOfFeature: the second argument (relation) is not a string. ");<a name="line.54"></a>
<FONT color="green">055</FONT> }<a name="line.55"></a>
<FONT color="green">056</FONT> if (!(arguments[2] instanceof java.lang.String)) {<a name="line.56"></a>
<FONT color="green">057</FONT> throw new SyntaxGraphException("Could not initialize NumOfFeature: the third argument (normalization) is not a string. ");<a name="line.57"></a>
<FONT color="green">058</FONT> }<a name="line.58"></a>
<FONT color="green">059</FONT> setAddressFunction((AddressFunction)arguments[0]);<a name="line.59"></a>
<FONT color="green">060</FONT> setNumOfRelation((String)arguments[1]);<a name="line.60"></a>
<FONT color="green">061</FONT> <a name="line.61"></a>
<FONT color="green">062</FONT> // Creates a symbol table called "NUMOF" using one null value<a name="line.62"></a>
<FONT color="green">063</FONT> setSymbolTable(tableHandler.addSymbolTable("NUMOF", ColumnDescription.INPUT, "one"));<a name="line.63"></a>
<FONT color="green">064</FONT> normalizationString = (String)arguments[2];<a name="line.64"></a>
<FONT color="green">065</FONT> String[] items = normalizationString.split("\\|");<a name="line.65"></a>
<FONT color="green">066</FONT> <a name="line.66"></a>
<FONT color="green">067</FONT> if (items.length <= 0 || !items[0].equals("0")) {<a name="line.67"></a>
<FONT color="green">068</FONT> throw new SyntaxGraphException("Could not initialize NumOfFeature ("+this+"): the third argument (normalization) must contain a list of integer values separated with | and the first element must be 0.");<a name="line.68"></a>
<FONT color="green">069</FONT> }<a name="line.69"></a>
<FONT color="green">070</FONT> int tmp = -1;<a name="line.70"></a>
<FONT color="green">071</FONT> for (int i = 0; i < items.length; i++) {<a name="line.71"></a>
<FONT color="green">072</FONT> int v;<a name="line.72"></a>
<FONT color="green">073</FONT> try {<a name="line.73"></a>
<FONT color="green">074</FONT> v = Integer.parseInt(items[i]);<a name="line.74"></a>
<FONT color="green">075</FONT> } catch (NumberFormatException e) {<a name="line.75"></a>
<FONT color="green">076</FONT> throw new SyntaxGraphException("Could not initialize NumOfFeature ("+this+"): the third argument (normalization) must contain a sorted list of integer values separated with |", e);<a name="line.76"></a>
<FONT color="green">077</FONT> }<a name="line.77"></a>
<FONT color="green">078</FONT> normalization.put(v, ">="+v);<a name="line.78"></a>
<FONT color="green">079</FONT> table.addSymbol(">="+v);<a name="line.79"></a>
<FONT color="green">080</FONT> if (tmp != -1 && tmp >= v) {<a name="line.80"></a>
<FONT color="green">081</FONT> throw new SyntaxGraphException("Could not initialize NumOfFeature ("+this+"): the third argument (normalization) must contain a sorted list of integer values separated with |");<a name="line.81"></a>
<FONT color="green">082</FONT> }<a name="line.82"></a>
<FONT color="green">083</FONT> tmp = v;<a name="line.83"></a>
<FONT color="green">084</FONT> }<a name="line.84"></a>
<FONT color="green">085</FONT> }<a name="line.85"></a>
<FONT color="green">086</FONT> <a name="line.86"></a>
<FONT color="green">087</FONT> /**<a name="line.87"></a>
<FONT color="green">088</FONT> * Returns an array of class types used by the feature extraction system to invoke initialize with<a name="line.88"></a>
<FONT color="green">089</FONT> * correct arguments.<a name="line.89"></a>
<FONT color="green">090</FONT> * <a name="line.90"></a>
<FONT color="green">091</FONT> * @return an array of class types<a name="line.91"></a>
<FONT color="green">092</FONT> */<a name="line.92"></a>
<FONT color="green">093</FONT> public Class<?>[] getParameterTypes() {<a name="line.93"></a>
<FONT color="green">094</FONT> Class<?>[] paramTypes = { org.maltparser.core.feature.function.AddressFunction.class, <a name="line.94"></a>
<FONT color="green">095</FONT> java.lang.String.class,<a name="line.95"></a>
<FONT color="green">096</FONT> java.lang.String.class};<a name="line.96"></a>
<FONT color="green">097</FONT> return paramTypes; <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 string representation of the integer <code>code</code> according to the numof feature function. <a name="line.101"></a>
<FONT color="green">102</FONT> * <a name="line.102"></a>
<FONT color="green">103</FONT> * @param code the integer representation of the symbol<a name="line.103"></a>
<FONT color="green">104</FONT> * @return the string representation of the integer <code>code</code> according to the numof feature function.<a name="line.104"></a>
<FONT color="green">105</FONT> * @throws MaltChainedException<a name="line.105"></a>
<FONT color="green">106</FONT> */<a name="line.106"></a>
<FONT color="green">107</FONT> public String getSymbol(int code) throws MaltChainedException {<a name="line.107"></a>
<FONT color="green">108</FONT> return table.getSymbolCodeToString(code);<a name="line.108"></a>
<FONT color="green">109</FONT> }<a name="line.109"></a>
<FONT color="green">110</FONT> <a name="line.110"></a>
<FONT color="green">111</FONT> /**<a name="line.111"></a>
<FONT color="green">112</FONT> * Returns the integer representation of the string <code>symbol</code> according to the numof feature function.<a name="line.112"></a>
<FONT color="green">113</FONT> * <a name="line.113"></a>
<FONT color="green">114</FONT> * @param symbol the string representation of the symbol<a name="line.114"></a>
<FONT color="green">115</FONT> * @return the integer representation of the string <code>symbol</code> according to the numof feature function.<a name="line.115"></a>
<FONT color="green">116</FONT> * @throws MaltChainedException<a name="line.116"></a>
<FONT color="green">117</FONT> */<a name="line.117"></a>
<FONT color="green">118</FONT> public int getCode(String symbol) throws MaltChainedException {<a name="line.118"></a>
<FONT color="green">119</FONT> return table.getSymbolStringToCode(symbol);<a name="line.119"></a>
<FONT color="green">120</FONT> }<a name="line.120"></a>
<FONT color="green">121</FONT> <a name="line.121"></a>
<FONT color="green">122</FONT> /**<a name="line.122"></a>
<FONT color="green">123</FONT> * Cause the numof feature function to update the cardinality of the feature value.<a name="line.123"></a>
<FONT color="green">124</FONT> * <a name="line.124"></a>
<FONT color="green">125</FONT> * @throws MaltChainedException<a name="line.125"></a>
<FONT color="green">126</FONT> */<a name="line.126"></a>
<FONT color="green">127</FONT> public void updateCardinality() {<a name="line.127"></a>
<FONT color="green">128</FONT> featureValue.setCardinality(table.getValueCounter()); <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> * Cause the feature function to update the feature value.<a name="line.132"></a>
<FONT color="green">133</FONT> * <a name="line.133"></a>
<FONT color="green">134</FONT> * @throws MaltChainedException<a name="line.134"></a>
<FONT color="green">135</FONT> */<a name="line.135"></a>
<FONT color="green">136</FONT> public void update() throws MaltChainedException {<a name="line.136"></a>
<FONT color="green">137</FONT> // Retrieve the address value <a name="line.137"></a>
<FONT color="green">138</FONT> final AddressValue arg1 = addressFunction.getAddressValue();<a name="line.138"></a>
<FONT color="green">139</FONT> // if arg1 or arg2 is null, then set a NO_NODE null value as feature value<a name="line.139"></a>
<FONT color="green">140</FONT> if (arg1.getAddress() == null ) { <a name="line.140"></a>
<FONT color="green">141</FONT> featureValue.setCode(table.getNullValueCode(NullValueId.NO_NODE));<a name="line.141"></a>
<FONT color="green">142</FONT> featureValue.setSymbol(table.getNullValueSymbol(NullValueId.NO_NODE));<a name="line.142"></a>
<FONT color="green">143</FONT> featureValue.setKnown(true);<a name="line.143"></a>
<FONT color="green">144</FONT> featureValue.setNullValue(true); <a name="line.144"></a>
<FONT color="green">145</FONT> } else {<a name="line.145"></a>
<FONT color="green">146</FONT> // Unfortunately this method takes a lot of time arg1.getAddressClass().asSubclass(org.maltparser.core.syntaxgraph.node.DependencyNode.class);<a name="line.146"></a>
<FONT color="green">147</FONT> // Cast the address arguments to dependency nodes<a name="line.147"></a>
<FONT color="green">148</FONT> final DependencyNode node = (DependencyNode)arg1.getAddress();<a name="line.148"></a>
<FONT color="green">149</FONT> int numof = 0;<a name="line.149"></a>
<FONT color="green">150</FONT> if (numOfRelation == NumOfRelation.DEP) {<a name="line.150"></a>
<FONT color="green">151</FONT> numof = node.getLeftDependentCount() + node.getRightDependentCount();<a name="line.151"></a>
<FONT color="green">152</FONT> } else if (numOfRelation == NumOfRelation.LDEP) {<a name="line.152"></a>
<FONT color="green">153</FONT> numof = node.getLeftDependentCount();<a name="line.153"></a>
<FONT color="green">154</FONT> } else if (numOfRelation == NumOfRelation.RDEP) {<a name="line.154"></a>
<FONT color="green">155</FONT> numof = node.getRightDependentCount();<a name="line.155"></a>
<FONT color="green">156</FONT> } <a name="line.156"></a>
<FONT color="green">157</FONT> int lower = -1;<a name="line.157"></a>
<FONT color="green">158</FONT> boolean f = false;<a name="line.158"></a>
<FONT color="green">159</FONT> for (Integer upper : normalization.keySet()) {<a name="line.159"></a>
<FONT color="green">160</FONT> if (numof >= lower && numof < upper) {<a name="line.160"></a>
<FONT color="green">161</FONT> featureValue.setCode(table.getSymbolStringToCode(normalization.get(lower)));<a name="line.161"></a>
<FONT color="green">162</FONT> featureValue.setSymbol(normalization.get(lower));<a name="line.162"></a>
<FONT color="green">163</FONT> f = true;<a name="line.163"></a>
<FONT color="green">164</FONT> break;<a name="line.164"></a>
<FONT color="green">165</FONT> }<a name="line.165"></a>
<FONT color="green">166</FONT> lower = upper;<a name="line.166"></a>
<FONT color="green">167</FONT> }<a name="line.167"></a>
<FONT color="green">168</FONT> if (f == false) {<a name="line.168"></a>
<FONT color="green">169</FONT> featureValue.setCode(table.getSymbolStringToCode(normalization.get(lower)));<a name="line.169"></a>
<FONT color="green">170</FONT> featureValue.setSymbol(normalization.get(lower));<a name="line.170"></a>
<FONT color="green">171</FONT> }<a name="line.171"></a>
<FONT color="green">172</FONT> // Tells the feature value that the feature is known and is not a null value<a name="line.172"></a>
<FONT color="green">173</FONT> featureValue.setKnown(true);<a name="line.173"></a>
<FONT color="green">174</FONT> featureValue.setNullValue(false);<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> public void setNumOfRelation(String numOfRelationName) {<a name="line.178"></a>
<FONT color="green">179</FONT> this.numOfRelationName = numOfRelationName;<a name="line.179"></a>
<FONT color="green">180</FONT> numOfRelation = NumOfRelation.valueOf(numOfRelationName.toUpperCase());<a name="line.180"></a>
<FONT color="green">181</FONT> }<a name="line.181"></a>
<FONT color="green">182</FONT> <a name="line.182"></a>
<FONT color="green">183</FONT> public NumOfRelation getNumOfRelation() {<a name="line.183"></a>
<FONT color="green">184</FONT> return numOfRelation;<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> /**<a name="line.187"></a>
<FONT color="green">188</FONT> * Returns the feature value<a name="line.188"></a>
<FONT color="green">189</FONT> * <a name="line.189"></a>
<FONT color="green">190</FONT> * @return the feature value<a name="line.190"></a>
<FONT color="green">191</FONT> */<a name="line.191"></a>
<FONT color="green">192</FONT> public FeatureValue getFeatureValue() {<a name="line.192"></a>
<FONT color="green">193</FONT> return featureValue;<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> * Returns the symbol table used by the numof feature function<a name="line.197"></a>
<FONT color="green">198</FONT> * <a name="line.198"></a>
<FONT color="green">199</FONT> * @return the symbol table used by the numof feature function<a name="line.199"></a>
<FONT color="green">200</FONT> */<a name="line.200"></a>
<FONT color="green">201</FONT> public SymbolTable getSymbolTable() {<a name="line.201"></a>
<FONT color="green">202</FONT> return table;<a name="line.202"></a>
<FONT color="green">203</FONT> }<a name="line.203"></a>
<FONT color="green">204</FONT> <a name="line.204"></a>
<FONT color="green">205</FONT> /**<a name="line.205"></a>
<FONT color="green">206</FONT> * Returns the address function <a name="line.206"></a>
<FONT color="green">207</FONT> * <a name="line.207"></a>
<FONT color="green">208</FONT> * @return the address function <a name="line.208"></a>
<FONT color="green">209</FONT> */<a name="line.209"></a>
<FONT color="green">210</FONT> public AddressFunction getAddressFunction() {<a name="line.210"></a>
<FONT color="green">211</FONT> return addressFunction;<a name="line.211"></a>
<FONT color="green">212</FONT> }<a name="line.212"></a>
<FONT color="green">213</FONT> <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> * Sets the address function <a name="line.216"></a>
<FONT color="green">217</FONT> * <a name="line.217"></a>
<FONT color="green">218</FONT> * @param addressFunction a address function <a name="line.218"></a>
<FONT color="green">219</FONT> */<a name="line.219"></a>
<FONT color="green">220</FONT> public void setAddressFunction(AddressFunction addressFunction) {<a name="line.220"></a>
<FONT color="green">221</FONT> this.addressFunction = addressFunction;<a name="line.221"></a>
<FONT color="green">222</FONT> }<a name="line.222"></a>
<FONT color="green">223</FONT> <a name="line.223"></a>
<FONT color="green">224</FONT> /**<a name="line.224"></a>
<FONT color="green">225</FONT> * Sets the symbol table handler<a name="line.225"></a>
<FONT color="green">226</FONT> * <a name="line.226"></a>
<FONT color="green">227</FONT> * @param tableHandler a symbol table handler<a name="line.227"></a>
<FONT color="green">228</FONT> */<a name="line.228"></a>
<FONT color="green">229</FONT> public void setTableHandler(SymbolTableHandler tableHandler) {<a name="line.229"></a>
<FONT color="green">230</FONT> this.tableHandler = tableHandler;<a name="line.230"></a>
<FONT color="green">231</FONT> }<a name="line.231"></a>
<FONT color="green">232</FONT> <a name="line.232"></a>
<FONT color="green">233</FONT> /**<a name="line.233"></a>
<FONT color="green">234</FONT> * Sets the symbol table used by the numof feature function<a name="line.234"></a>
<FONT color="green">235</FONT> * <a name="line.235"></a>
<FONT color="green">236</FONT> * @param table<a name="line.236"></a>
<FONT color="green">237</FONT> */<a name="line.237"></a>
<FONT color="green">238</FONT> public void setSymbolTable(SymbolTable table) {<a name="line.238"></a>
<FONT color="green">239</FONT> this.table = table;<a name="line.239"></a>
<FONT color="green">240</FONT> }<a name="line.240"></a>
<FONT color="green">241</FONT> <a name="line.241"></a>
<FONT color="green">242</FONT> public boolean equals(Object obj) {<a name="line.242"></a>
<FONT color="green">243</FONT> if (this == obj)<a name="line.243"></a>
<FONT color="green">244</FONT> return true;<a name="line.244"></a>
<FONT color="green">245</FONT> if (obj == null)<a name="line.245"></a>
<FONT color="green">246</FONT> return false;<a name="line.246"></a>
<FONT color="green">247</FONT> if (getClass() != obj.getClass())<a name="line.247"></a>
<FONT color="green">248</FONT> return false;<a name="line.248"></a>
<FONT color="green">249</FONT> return obj.toString().equals(this.toString());<a name="line.249"></a>
<FONT color="green">250</FONT> }<a name="line.250"></a>
<FONT color="green">251</FONT> <a name="line.251"></a>
<FONT color="green">252</FONT> public int hashCode() {<a name="line.252"></a>
<FONT color="green">253</FONT> return 217 + (null == toString() ? 0 : toString().hashCode());<a name="line.253"></a>
<FONT color="green">254</FONT> }<a name="line.254"></a>
<FONT color="green">255</FONT> <a name="line.255"></a>
<FONT color="green">256</FONT> public String toString() {<a name="line.256"></a>
<FONT color="green">257</FONT> final StringBuilder sb = new StringBuilder();<a name="line.257"></a>
<FONT color="green">258</FONT> sb.append("NumOf(");<a name="line.258"></a>
<FONT color="green">259</FONT> sb.append(addressFunction.toString());<a name="line.259"></a>
<FONT color="green">260</FONT> sb.append(", ");<a name="line.260"></a>
<FONT color="green">261</FONT> sb.append(numOfRelationName);<a name="line.261"></a>
<FONT color="green">262</FONT> sb.append(", ");<a name="line.262"></a>
<FONT color="green">263</FONT> sb.append(normalizationString);<a name="line.263"></a>
<FONT color="green">264</FONT> sb.append(')');<a name="line.264"></a>
<FONT color="green">265</FONT> return sb.toString();<a name="line.265"></a>
<FONT color="green">266</FONT> }<a name="line.266"></a>
<FONT color="green">267</FONT> }<a name="line.267"></a>
</PRE>
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