public Iterable<Edge> getEdges(final Direction direction, final String... labels) {
final List<List<Edge>> edgeLists = new ArrayList<List<Edge>>();
if (direction.equals(OUT) || direction.equals(BOTH)) {
if (null == labels || labels.length == 0) {
for (final List<Edge> temp : this.outEdges.values()) {
edgeLists.add(temp);
}
} else {
for (final String label : labels) {
final List<Edge> temp = this.outEdges.get(label);
if (null != temp) edgeLists.add(temp);
}
}
}
if (direction.equals(IN) || direction.equals(BOTH)) {
if (null == labels || labels.length == 0) {
for (final List<Edge> temp : this.inEdges.values()) {
edgeLists.add(temp);
}
} else {
for (final String label : labels) {
final List<Edge> temp = this.inEdges.get(label);
if (null != temp) edgeLists.add(temp);
}
}
}
return new EdgeList(edgeLists);
}
public Vertex getVertex(final Direction direction) {
this.graph.autoStartTransaction();
if (direction.equals(Direction.OUT))
return new Neo4j2Vertex(((Relationship) this.rawElement).getStartNode(), this.graph);
else if (direction.equals(Direction.IN))
return new Neo4j2Vertex(((Relationship) this.rawElement).getEndNode(), this.graph);
else throw ExceptionFactory.bothIsNotSupported();
}
public Set<String> getEdgeLabels(final Direction direction) {
if (direction.equals(Direction.OUT)) return this.outEdges.keySet();
else if (direction.equals(Direction.IN)) return this.inEdges.keySet();
else {
final Set<String> labels = new HashSet<String>();
labels.addAll(this.outEdges.keySet());
labels.addAll(this.inEdges.keySet());
return labels;
}
}
public void addEdges(final Direction direction, final FaunusVertex vertex) {
if (direction.equals(OUT) || direction.equals(BOTH)) {
for (final String label : vertex.getEdgeLabels(OUT)) {
this.addEdges(OUT, label, (List) vertex.getEdges(OUT, label));
}
}
if (direction.equals(IN) || direction.equals(BOTH)) {
for (final String label : vertex.getEdgeLabels(IN)) {
this.addEdges(IN, label, (List) vertex.getEdges(IN, label));
}
}
}
private void addEdges(
final Direction direction, final String label, final List<FaunusEdge> edges) {
List<Edge> list;
if (direction.equals(OUT)) list = this.outEdges.get(label);
else if (direction.equals(IN)) list = this.inEdges.get(label);
else throw ExceptionFactory.bothIsNotSupported();
if (null == list) {
list = new ArrayList<Edge>();
if (direction.equals(OUT)) this.outEdges.put(label, list);
else this.inEdges.put(label, list);
}
list.addAll(edges);
}
public void removeEdges(
final Tokens.Action action, final Direction direction, final String... labels) {
if (action.equals(Tokens.Action.KEEP)) {
final Set<String> keep = new HashSet<String>(Arrays.asList(labels));
if (direction.equals(BOTH) || direction.equals(OUT)) {
if (labels.length > 0) {
for (final String label : new ArrayList<String>(this.outEdges.keySet())) {
if (!keep.contains(label)) this.outEdges.remove(label);
}
}
}
if (direction.equals(BOTH) || direction.equals(IN)) {
if (labels.length > 0) {
for (final String label : new ArrayList<String>(this.inEdges.keySet())) {
if (!keep.contains(label)) this.inEdges.remove(label);
}
}
}
} else {
if (direction.equals(BOTH) || direction.equals(OUT)) {
if (labels.length == 0) {
this.outEdges.clear();
} else {
for (final String label : labels) {
this.outEdges.remove(label);
}
}
}
if (direction.equals(BOTH) || direction.equals(IN)) {
if (labels.length == 0) {
this.inEdges.clear();
} else {
for (final String label : labels) {
this.inEdges.remove(label);
}
}
}
}
}
public static Map<String, List<FaunusEdge>> readFields(
final DataInput in, final Direction idToRead, final long otherId) throws IOException {
final Map<String, List<FaunusEdge>> edges = new HashMap<String, List<FaunusEdge>>();
int edgeTypes = in.readShort();
for (int i = 0; i < edgeTypes; i++) {
final String label = in.readUTF();
final int size = WritableUtils.readVInt(in);
final List<FaunusEdge> temp = new ArrayList<FaunusEdge>(size);
for (int j = 0; j < size; j++) {
final FaunusEdge edge = new FaunusEdge();
edge.readFieldsCompressed(in, idToRead);
edge.setLabel(label);
if (idToRead.equals(Direction.OUT)) edge.inVertex = otherId;
else edge.outVertex = otherId;
temp.add(edge);
}
edges.put(label, temp);
}
return edges;
}
public Vertex getVertex(final Direction direction) {
if (direction.equals(Direction.OUT)) return outVertex;
else if (direction.equals(Direction.IN)) return inVertex;
else throw Edge.Exceptions.bothIsNotSupported();
}