private FigureMovableImpl createFigure(InputStream is) throws Exception {
FigureType figureType = unmarshall(is);
Map<String, Vertex> vertices = new HashMap<String, Vertex>();
for (VertexType vertexType : figureType.getVertices()) {
vertices.put(vertexType.getName(), createVertexFrom(vertexType));
}
Map<String, Edge> edges = new HashMap<String, Edge>();
Map<Vertex, Set<Edge>> verticesEdges = new HashMap<Vertex, Set<Edge>>();
for (EdgeType edgeType : figureType.getEdges()) {
Edge edge = createEdgeFrom(edgeType, vertices);
putEdgeIntoVerticesEdgesMap(verticesEdges, edge.getA(), edge);
putEdgeIntoVerticesEdgesMap(verticesEdges, edge.getB(), edge);
edges.put(edgeType.getName(), edge);
}
Map<String, Face> faces = new HashMap<String, Face>();
for (FaceType faceType : figureType.getFaces()) {
faces.put(faceType.getName(), createFaceFrom(faceType, edges, vertices, verticesEdges));
}
Double givenPrecision = figureType.getPrecision();
double precision = (givenPrecision != null) ? givenPrecision : Pointable.PRECISION;
return new FigureMovableImpl(
new HashSet<Face>(faces.values()), new HashSet<Edge>(edges.values()), precision);
}
private Face createFaceFrom(
FaceType faceType,
Map<String, Edge> edgesMap,
Map<String, Vertex> vertices,
Map<Vertex, Set<Edge>> verticesEdges) {
Set<Edge> edges = new HashSet<Edge>();
String edgesAttr = faceType.getEdges();
String verticesAttr = faceType.getVertices();
if (edgesAttr != null) {
String[] arrEdges = edgesAttr.split(",");
for (int i = 0; i < arrEdges.length; i++) {
String adgeName = arrEdges[i].trim();
Edge edge = edgesMap.get(adgeName);
if (edge == null) {
throw new IllegalArgumentException("No such edge defined - " + adgeName + ".");
}
edges.add(edge);
}
} else if (verticesAttr != null) {
String[] arrVertexNames = verticesAttr.split(",");
Vertex[] arrVertices = new Vertex[arrVertexNames.length];
for (int i = 0; i < arrVertexNames.length; i++) {
String vertexName = arrVertexNames[i].trim();
Vertex vertex = vertices.get(vertexName);
if (vertex == null) {
throw new IllegalArgumentException("No such vertex defined - " + vertexName + ".");
}
arrVertices[i] = vertex;
}
for (int i = 0; i < arrVertices.length; i++) {
Vertex v1 = arrVertices[i];
for (int j = (i + 1); j < arrVertices.length; j++) {
Vertex v2 = arrVertices[j];
Set<Edge> edgeV1 = new HashSet<Edge>(verticesEdges.get(v1));
edgeV1.retainAll(verticesEdges.get(v2));
int size = edgeV1.size();
if (size == 1) {
edges.add(edgeV1.iterator().next());
} else if (size > 1) {
throw new IllegalArgumentException(
"Between two vertices cannot be more than one edge.");
}
}
}
} else {
throw new IllegalArgumentException(
"Either 'edges' or 'vertices' attribute should be defined.");
}
return new Face(edges);
}