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TIEDEMANN / uplug-main-0.3.7 / share / ext / parser / malt / docs / api / src-html / org / maltparser / core / propagation / spec / PropagationSpecsReader.html 
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<FONT color="green">001</FONT>    package org.maltparser.core.propagation.spec;<a name="line.1"></a>
<FONT color="green">002</FONT>    <a name="line.2"></a>
<FONT color="green">003</FONT>    import java.io.IOException;<a name="line.3"></a>
<FONT color="green">004</FONT>    import java.net.URL;<a name="line.4"></a>
<FONT color="green">005</FONT>    <a name="line.5"></a>
<FONT color="green">006</FONT>    import javax.xml.parsers.DocumentBuilder;<a name="line.6"></a>
<FONT color="green">007</FONT>    import javax.xml.parsers.DocumentBuilderFactory;<a name="line.7"></a>
<FONT color="green">008</FONT>    import javax.xml.parsers.ParserConfigurationException;<a name="line.8"></a>
<FONT color="green">009</FONT>    <a name="line.9"></a>
<FONT color="green">010</FONT>    import org.maltparser.core.exception.MaltChainedException;<a name="line.10"></a>
<FONT color="green">011</FONT>    import org.maltparser.core.propagation.PropagationException;<a name="line.11"></a>
<FONT color="green">012</FONT>    import org.w3c.dom.Element;<a name="line.12"></a>
<FONT color="green">013</FONT>    import org.w3c.dom.NodeList;<a name="line.13"></a>
<FONT color="green">014</FONT>    import org.xml.sax.SAXException;<a name="line.14"></a>
<FONT color="green">015</FONT>    <a name="line.15"></a>
<FONT color="green">016</FONT>    /**<a name="line.16"></a>
<FONT color="green">017</FONT>     * @author Johan Hall<a name="line.17"></a>
<FONT color="green">018</FONT>     *<a name="line.18"></a>
<FONT color="green">019</FONT>     */<a name="line.19"></a>
<FONT color="green">020</FONT>    public class PropagationSpecsReader {<a name="line.20"></a>
<FONT color="green">021</FONT>            public PropagationSpecsReader() { }<a name="line.21"></a>
<FONT color="green">022</FONT>            <a name="line.22"></a>
<FONT color="green">023</FONT>            public void load(URL url, PropagationSpecs propagationSpecs) throws MaltChainedException {<a name="line.23"></a>
<FONT color="green">024</FONT>            try {<a name="line.24"></a>
<FONT color="green">025</FONT>                DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();<a name="line.25"></a>
<FONT color="green">026</FONT>                DocumentBuilder db = dbf.newDocumentBuilder();<a name="line.26"></a>
<FONT color="green">027</FONT>                Element root = null;<a name="line.27"></a>
<FONT color="green">028</FONT>    <a name="line.28"></a>
<FONT color="green">029</FONT>                root = db.parse(url.openStream()).getDocumentElement();<a name="line.29"></a>
<FONT color="green">030</FONT>    <a name="line.30"></a>
<FONT color="green">031</FONT>                if (root == null) {<a name="line.31"></a>
<FONT color="green">032</FONT>                    throw new PropagationException("The propagation specification file '"+url.getFile()+"' cannot be found. ");<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>                readPropagationSpecs(root, propagationSpecs);<a name="line.35"></a>
<FONT color="green">036</FONT>            } catch (IOException e) {<a name="line.36"></a>
<FONT color="green">037</FONT>                    throw new PropagationException("The propagation specification file '"+url.getFile()+"' cannot be found. ", e);<a name="line.37"></a>
<FONT color="green">038</FONT>            } catch (ParserConfigurationException e) {<a name="line.38"></a>
<FONT color="green">039</FONT>                    throw new PropagationException("Problem parsing the file "+url.getFile()+". ", e);<a name="line.39"></a>
<FONT color="green">040</FONT>            } catch (SAXException e) {<a name="line.40"></a>
<FONT color="green">041</FONT>                    throw new PropagationException("Problem parsing the file "+url.getFile()+". ", e);<a name="line.41"></a>
<FONT color="green">042</FONT>            }<a name="line.42"></a>
<FONT color="green">043</FONT>            }<a name="line.43"></a>
<FONT color="green">044</FONT>            <a name="line.44"></a>
<FONT color="green">045</FONT>            private void readPropagationSpecs(Element propagations, PropagationSpecs propagationSpecs) throws MaltChainedException {<a name="line.45"></a>
<FONT color="green">046</FONT>                    NodeList propagationList = propagations.getElementsByTagName("propagation");<a name="line.46"></a>
<FONT color="green">047</FONT>                    for (int i = 0; i &lt; propagationList.getLength(); i++) {<a name="line.47"></a>
<FONT color="green">048</FONT>                            readPropagationSpec((Element)propagationList.item(i), propagationSpecs);<a name="line.48"></a>
<FONT color="green">049</FONT>                    }<a name="line.49"></a>
<FONT color="green">050</FONT>            }<a name="line.50"></a>
<FONT color="green">051</FONT>            <a name="line.51"></a>
<FONT color="green">052</FONT>            private void readPropagationSpec(Element propagation, PropagationSpecs propagationSpecs) throws MaltChainedException {<a name="line.52"></a>
<FONT color="green">053</FONT>                    int nFrom = propagation.getElementsByTagName("from").getLength();<a name="line.53"></a>
<FONT color="green">054</FONT>                    if (nFrom &lt; 1 &amp;&amp; nFrom &gt; 1) {<a name="line.54"></a>
<FONT color="green">055</FONT>                            throw new PropagationException("Propagation specification wrongly formatted: Number of 'from' elements is '"+nFrom+"', must be 1.");<a name="line.55"></a>
<FONT color="green">056</FONT>                    }<a name="line.56"></a>
<FONT color="green">057</FONT>                    <a name="line.57"></a>
<FONT color="green">058</FONT>                    int nTo = propagation.getElementsByTagName("to").getLength();<a name="line.58"></a>
<FONT color="green">059</FONT>                    if (nTo &lt; 1 &amp;&amp; nTo &gt; 1) {<a name="line.59"></a>
<FONT color="green">060</FONT>                            throw new PropagationException("Propagation specification wrongly formatted: Number of 'to' elements is '"+nTo+"', must be 1.");<a name="line.60"></a>
<FONT color="green">061</FONT>                    }<a name="line.61"></a>
<FONT color="green">062</FONT>                    <a name="line.62"></a>
<FONT color="green">063</FONT>                    int nFor = propagation.getElementsByTagName("for").getLength();<a name="line.63"></a>
<FONT color="green">064</FONT>                    if (nFor &gt; 1) {<a name="line.64"></a>
<FONT color="green">065</FONT>                            throw new PropagationException("Propagation specification wrongly formatted: Number of 'for' elements is '"+nFor+"', at most 1.");<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>                    int nOver = propagation.getElementsByTagName("over").getLength();<a name="line.68"></a>
<FONT color="green">069</FONT>                    if (nOver &gt; 1) {<a name="line.69"></a>
<FONT color="green">070</FONT>                            throw new PropagationException("Propagation specification wrongly formatted: Number of 'over' elements is '"+nOver+"',at most 1.");<a name="line.70"></a>
<FONT color="green">071</FONT>                    }<a name="line.71"></a>
<FONT color="green">072</FONT>                    String fromText = ((Element)propagation.getElementsByTagName("from").item(0)).getTextContent().trim();<a name="line.72"></a>
<FONT color="green">073</FONT>                    if (fromText.length() == 0) {<a name="line.73"></a>
<FONT color="green">074</FONT>                            throw new PropagationException("Propagation specification wrongly formatted: The 'from' element is empty");<a name="line.74"></a>
<FONT color="green">075</FONT>                    }<a name="line.75"></a>
<FONT color="green">076</FONT>                    String toText = ((Element)propagation.getElementsByTagName("to").item(0)).getTextContent().trim();<a name="line.76"></a>
<FONT color="green">077</FONT>                    if (toText.length() == 0) {<a name="line.77"></a>
<FONT color="green">078</FONT>                            throw new PropagationException("Propagation specification wrongly formatted: The 'to' element is empty");<a name="line.78"></a>
<FONT color="green">079</FONT>                    }<a name="line.79"></a>
<FONT color="green">080</FONT>                    String forText = "";<a name="line.80"></a>
<FONT color="green">081</FONT>                    if (nFor != 0) {<a name="line.81"></a>
<FONT color="green">082</FONT>                            forText = ((Element)propagation.getElementsByTagName("for").item(0)).getTextContent().trim();<a name="line.82"></a>
<FONT color="green">083</FONT>                    }<a name="line.83"></a>
<FONT color="green">084</FONT>                    String overText = "";<a name="line.84"></a>
<FONT color="green">085</FONT>                    if (nOver != 0) {<a name="line.85"></a>
<FONT color="green">086</FONT>                            overText = ((Element)propagation.getElementsByTagName("over").item(0)).getTextContent().trim();<a name="line.86"></a>
<FONT color="green">087</FONT>                    }<a name="line.87"></a>
<FONT color="green">088</FONT>                    propagationSpecs.add(new PropagationSpec(fromText, toText, forText, overText));<a name="line.88"></a>
<FONT color="green">089</FONT>            }<a name="line.89"></a>
<FONT color="green">090</FONT>    }<a name="line.90"></a>




























































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