@Override
public void map(
final NullWritable key,
final FaunusElement value,
final Mapper<NullWritable, FaunusElement, LongWritable, FaunusVertex>.Context context)
throws IOException, InterruptedException {
if (value instanceof FaunusEdge) {
final long outId = ((FaunusEdge) value).getVertexId(OUT);
final long inId = ((FaunusEdge) value).getVertexId(IN);
FaunusVertex vertex = this.map.get(outId);
if (null == vertex) {
vertex = new FaunusVertex(outId);
this.map.put(outId, vertex);
}
vertex.addEdge(OUT, (FaunusEdge) value);
this.counter++;
vertex = this.map.get(inId);
if (null == vertex) {
vertex = new FaunusVertex(inId);
this.map.put(inId, vertex);
}
vertex.addEdge(IN, (FaunusEdge) value);
context.getCounter(Counters.EDGES_PROCESSED).increment(1l);
this.counter++;
} else {
final long id = value.getIdAsLong();
FaunusVertex vertex = this.map.get(id);
if (null == vertex) {
vertex = new FaunusVertex(id);
this.map.put(id, vertex);
}
vertex.getProperties().putAll(value.getProperties());
vertex.addEdges(BOTH, (FaunusVertex) value);
this.counter++;
}
if (this.counter > MAX_MAP_SIZE) this.flush(context);
}
