/**
* Constructs a new JGraph model adapter for the specified JGraphT graph.
*
* @param jGraphTGraph the JGraphT graph for which JGraph model adapter to be created. <code>null
* </code> is NOT permitted.
* @param defaultVertexAttributes a default map of JGraph attributes to format vertices. <code>
* null</code> is NOT permitted.
* @param defaultEdgeAttributes a default map of JGraph attributes to format edges. <code>null
* </code> is NOT permitted.
* @param cellFactory a {@link CellFactory} to be used to create the JGraph cells. <code>null
* </code> is NOT permitted.
* @throws IllegalArgumentException
*/
public JGraphModelAdapter(
Graph<V, E> jGraphTGraph,
AttributeMap defaultVertexAttributes,
AttributeMap defaultEdgeAttributes,
CellFactory<V, E> cellFactory) {
super();
if ((jGraphTGraph == null)
|| (defaultVertexAttributes == null)
|| (defaultEdgeAttributes == null)
|| (cellFactory == null)) {
throw new IllegalArgumentException("null is NOT permitted");
}
jtGraph = new ShieldedGraph(jGraphTGraph);
setDefaultVertexAttributes(defaultVertexAttributes);
setDefaultEdgeAttributes(defaultEdgeAttributes);
this.cellFactory = cellFactory;
if (jGraphTGraph instanceof ListenableGraph<?, ?>) {
ListenableGraph<V, E> g = (ListenableGraph<V, E>) jGraphTGraph;
g.addGraphListener(new JGraphTListener());
}
for (Iterator<V> i = jGraphTGraph.vertexSet().iterator(); i.hasNext(); ) {
handleJGraphTAddedVertex(i.next());
}
for (Iterator<E> i = jGraphTGraph.edgeSet().iterator(); i.hasNext(); ) {
handleJGraphTAddedEdge(i.next());
}
this.addGraphModelListener(new JGraphListener());
}
/**
* Creates a new iterator for the specified graph. Iteration will start at the specified start
* vertex. If the specified start vertex is <code>
* null</code>, Iteration will start at an arbitrary graph vertex.
*
* @param g the graph to be iterated.
* @param startVertex the vertex iteration to be started.
* @throws IllegalArgumentException if <code>g==null</code> or does not contain <code>startVertex
* </code>
*/
public CrossComponentIterator(Graph<V, E> g, V startVertex) {
super();
if (g == null) {
throw new IllegalArgumentException("graph must not be null");
}
graph = g;
specifics = createGraphSpecifics(g);
vertexIterator = g.vertexSet().iterator();
setCrossComponentTraversal(startVertex == null);
reusableEdgeEvent = new FlyweightEdgeEvent<V, E>(this, null);
reusableVertexEvent = new FlyweightVertexEvent<V>(this, null);
if (startVertex == null) {
// pick a start vertex if graph not empty
if (vertexIterator.hasNext()) {
this.startVertex = vertexIterator.next();
} else {
this.startVertex = null;
}
} else if (g.containsVertex(startVertex)) {
this.startVertex = startVertex;
} else {
throw new IllegalArgumentException("graph must contain the start vertex");
}
}
E addEdge(V jtSource, V jtTarget) {
E jtEdge = graph.getEdgeFactory().createEdge(jtSource, jtTarget);
jtElementsBeingAdded.add(jtEdge);
boolean added = graph.addEdge(jtSource, jtTarget, jtEdge);
jtElementsBeingAdded.remove(jtEdge);
return added ? jtEdge : null;
}
void removeVertex(V jtVertex) {
jtElementsBeingRemoved.add(jtVertex);
graph.removeVertex(jtVertex);
jtElementsBeingRemoved.remove(jtVertex);
}
void removeEdge(E jtEdge) {
jtElementsBeingRemoved.add(jtEdge);
graph.removeEdge(jtEdge);
jtElementsBeingRemoved.remove(jtEdge);
}
boolean removeAllEdges(Collection<E> edges) {
return graph.removeAllEdges(edges);
}
Set<E> edgesOf(V vertex) {
return graph.edgesOf(vertex);
}
void addVertex(V jtVertex) {
jtElementsBeingAdded.add(jtVertex);
graph.addVertex(jtVertex);
jtElementsBeingAdded.remove(jtVertex);
}
V getEdgeTarget(E e) {
return graph.getEdgeTarget(e);
}
V getEdgeSource(E e) {
return graph.getEdgeSource(e);
}
/** @see CrossComponentIterator.Specifics#edgesOf(Object) */
public Set<EE> edgesOf(VV vertex) {
return graph.edgesOf(vertex);
}