@Override
protected void map(UndirectedEdgeWithDegrees edgeWithDegrees, Object value, Context ctx)
throws IOException, InterruptedException {
Vertex firstVertex = edgeWithDegrees.getFirstVertexWithDegree().getVertex();
Vertex secondVertex = edgeWithDegrees.getSecondVertexWithDegree().getVertex();
ctx.write(new JoinableUndirectedEdge(firstVertex, secondVertex, true), VertexOrMarker.MARKER);
}
@Override
protected void map(UndirectedEdgeWithDegrees edge, Object value, Context ctx)
throws IOException, InterruptedException {
VertexWithDegree first = edge.getFirstVertexWithDegree();
VertexWithDegree second = edge.getSecondVertexWithDegree();
if (first.getDegree() < second.getDegree()) {
ctx.write(first.getVertex(), second.getVertex());
} else {
ctx.write(second.getVertex(), first.getVertex());
}
}
