/** {@inheritDoc} */
@Override
public CGraph transform(final LGraph inputGraph) {
layeredGraph = inputGraph;
// checking if the graph has edges and possibly prohibiting vertical compaction
hasEdges =
layeredGraph
.getLayers()
.stream()
.flatMap(l -> l.getNodes().stream())
.anyMatch(n -> !Iterables.isEmpty(n.getConnectedEdges()));
EnumSet<Direction> supportedDirections =
EnumSet.of(Direction.UNDEFINED, Direction.LEFT, Direction.RIGHT);
if (!hasEdges) {
supportedDirections.add(Direction.UP);
supportedDirections.add(Direction.DOWN);
}
// initializing fields
cGraph = new CGraph(supportedDirections);
// importing LGraphElements into CNodes
readNodes();
return cGraph;
}
