| /** |
| * Copyright (C) 2008 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.google.inject.grapher.graphviz; |
| |
| import com.google.inject.Inject; |
| import com.google.inject.grapher.DependencyEdge; |
| import com.google.inject.internal.ImmutableList; |
| import com.google.inject.spi.InjectionPoint; |
| |
| /** |
| * Graphviz-specific implementation of {@link DependencyEdge.Factory}. Uses a |
| * {@link GraphvizEdgeAdaptor} to delegate to a {@link GraphvizEdge}. |
| * |
| * @author phopkins@gmail.com (Pete Hopkins) |
| */ |
| public class DependencyEdgeFactory |
| implements DependencyEdge.Factory<String, DependencyEdge<String>> { |
| private final GraphvizRenderer renderer; |
| private final PortIdFactory portIdFactory; |
| |
| @Inject |
| public DependencyEdgeFactory(GraphvizRenderer renderer, PortIdFactory portIdFactory) { |
| this.renderer = renderer; |
| this.portIdFactory = portIdFactory; |
| } |
| |
| public DependencyEdge<String> newDependencyEdge(String fromId, |
| InjectionPoint fromPoint, String toId) { |
| GraphvizEdge edge = new GraphvizEdge(fromId, toId); |
| |
| if (fromPoint == null) { |
| edge.setTailPortId("header"); |
| } else { |
| edge.setTailPortId(portIdFactory.getPortId(fromPoint.getMember())); |
| } |
| |
| renderer.addEdge(edge); |
| return newAdaptor(edge); |
| } |
| |
| protected GraphvizEdgeAdaptor newAdaptor(GraphvizEdge edge) { |
| return new GraphvizEdgeAdaptor(edge); |
| } |
| |
| /** |
| * Adaptor class that converts {@link DependencyEdge} methods to display |
| * operations on a {@link GraphvizEdge}. |
| */ |
| protected class GraphvizEdgeAdaptor implements DependencyEdge<String> { |
| protected final GraphvizEdge edge; |
| |
| public GraphvizEdgeAdaptor(GraphvizEdge edge) { |
| this.edge = edge; |
| |
| this.edge.setArrowHead(ImmutableList.of(ArrowType.NORMAL)); |
| this.edge.setTailCompassPoint(CompassPoint.EAST); |
| } |
| } |
| } |