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POHow do i use GraphMLReader2 in Jung?
 

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  1. POHow do i use GraphMLReader2 in Jung?
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    <p>I want to use class GraphMLReader to read a Undirected Graph from graphML with JUNG2.0.</p> <p>The code is as follow:</p> <pre><code>import edu.uci.ics.jung.io.*; import edu.uci.ics.jung.io.graphml.*; import java.io.*; import java.util.*; import org.apache.commons.collections15.Transformer; import edu.uci.ics.jung.graph.*; class Vertex{ int id; String type; String value; } class Edge{ int id ; String type; String value; } public class Loader{ static String src = "test.xsl"; public static void Main( String[] args){ Reader reader = new FileReader(src ); Transformer&lt;NodeMetadata, Vertex&gt; vtrans = new Transformer&lt;NodeMetadata,Vertex&gt;(){ public Vertex transform(NodeMetadata nmd ){ Vertex v = new Vertex() ; v.type = nmd.getProperty("type"); v.value = nmd.getProperty("value"); v.id = Integer.valueOf( nmd.getId() ); return v; } }; Transformer&lt;EdgeMetadata, Edge&gt; etrans = new Transformer&lt;EdgeMetadata,Edge&gt;(){ public Edge transform( EdgeMetadata emd ){ Edge e = new Edge() ; e.type = emd.getProperty("type"); e.value = emd.getProperty("value"); e.id = Integer.valueOf( emd.getId() ); return e; } }; Transformer&lt;HyperEdgeMetadata, Edge&gt; hetrans = new Transformer&lt;HyperEdgeMetadata,Edge&gt;(){ public Edge transform( HyperEdgeMetadata emd ){ Edge e = new Edge() ; e.type = emd.getProperty("type"); e.value = emd.getProperty("value"); e.id = Integer.valueOf( emd.getId() ); return e; } }; Transformer&lt; GraphMetadata , UndirectedSparseGraph&gt; gtrans = new Transformer&lt;GraphMetadata,UndirectedSparseGraph&gt;(){ public UndirectedSparseGraph&lt;Vertex,Edge&gt; transform( GraphMetadata gmd ){ return new UndirectedSparseGraph&lt;Vertex,Edge&gt;(); } }; GraphMLReader2&lt; UndirectedSparseGraph&lt;Vertex,Edge&gt; , Vertex , Edge&gt; gmlr = new GraphMLReader2&lt; UndirectedSparseGraph&lt;Vertex,Edge&gt; ,Vertex, Edge&gt;( reader, gtrans, vtrans, etrans, hetrans); UndirectedSparseGraph&lt;Vertex,Edge&gt; g = gmlr.readGraph(); return ; } } </code></pre> <p>However, compiler alert that:</p> <pre><code> Loader.java:60: cannot find symbol symbol : constructor GraphMLReader2(java.io.Reader,org.apache.commons.collections15.Transformer&lt;edu.uci.ics.jung.io.graphml.GraphMetadata,edu.uci.ics.jung.graph.UndirectedSparseGraph&gt;,org.apache.commons.collections15.Transformer&lt;edu.uci.ics.jung.io.graphml.NodeMetadata,Vertex&gt;,org.apache.commons.collections15.Transformer&lt;edu.uci.ics.jung.io.graphml.EdgeMetadata,Edge&gt;) location: class edu.uci.ics.jung.io.graphml.GraphMLReader2&lt;edu.uci.ics.jung.graph.UndirectedSparseGraph&lt;Vertex,Edge&gt;,Vertex,Edge&gt; new GraphMLReader2&lt; UndirectedSparseGraph&lt;Vertex,Edge&gt; ,Vertex, Edge&gt;( ^ 1 error </code></pre> <p>How can i solve this problem? Thanks.</p>
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