| /** |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.camel.view; |
| |
| import java.io.PrintWriter; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| |
| import org.apache.camel.model.FromDefinition; |
| import org.apache.camel.model.MulticastDefinition; |
| import org.apache.camel.model.PipelineDefinition; |
| import org.apache.camel.model.ProcessorDefinition; |
| import org.apache.camel.model.RouteDefinition; |
| import org.apache.camel.model.ToDefinition; |
| |
| import static org.apache.camel.util.ObjectHelper.isNotEmpty; |
| /** |
| * A <a href="http://www.graphviz.org/">DOT</a> file creator plugin which |
| * creates a DOT file showing the current routes |
| * |
| * @version |
| */ |
| public class RouteDotGenerator extends GraphGeneratorSupport { |
| |
| public RouteDotGenerator(String dir) { |
| super(dir, ".dot"); |
| } |
| |
| // Implementation methods |
| //------------------------------------------------------------------------- |
| |
| protected void printRoutes(PrintWriter writer, Map<String, List<RouteDefinition>> map) { |
| Set<Map.Entry<String, List<RouteDefinition>>> entries = map.entrySet(); |
| for (Map.Entry<String, List<RouteDefinition>> entry : entries) { |
| String group = entry.getKey(); |
| printRoutes(writer, group, entry.getValue()); |
| } |
| } |
| |
| protected void printRoutes(PrintWriter writer, String group, List<RouteDefinition> routes) { |
| if (group != null) { |
| writer.println("subgraph cluster_" + (clusterCounter++) + " {"); |
| writer.println("label = \"" + group + "\";"); |
| writer.println("color = grey;"); |
| writer.println("style = \"dashed\";"); |
| writer.println("URL = \"" + group + ".html\";"); |
| writer.println(); |
| } |
| for (RouteDefinition route : routes) { |
| List<FromDefinition> inputs = route.getInputs(); |
| for (FromDefinition input : inputs) { |
| printRoute(writer, route, input); |
| } |
| writer.println(); |
| } |
| if (group != null) { |
| writer.println("}"); |
| writer.println(); |
| } |
| } |
| |
| protected void printRoute(PrintWriter writer, final RouteDefinition route, FromDefinition input) { |
| NodeData nodeData = getNodeData(input); |
| |
| printNode(writer, nodeData); |
| |
| NodeData from = nodeData; |
| for (ProcessorDefinition<?> output : route.getOutputs()) { |
| NodeData newData = printNode(writer, from, output); |
| from = newData; |
| } |
| } |
| |
| @SuppressWarnings("unchecked") |
| protected NodeData printNode(PrintWriter writer, NodeData fromData, ProcessorDefinition node) { |
| if (node instanceof MulticastDefinition) { |
| // no need for a multicast or interceptor node |
| List<ProcessorDefinition> outputs = node.getOutputs(); |
| boolean isPipeline = isPipeline(node); |
| for (ProcessorDefinition output : outputs) { |
| NodeData out = printNode(writer, fromData, output); |
| // if in pipeline then we should move the from node to the next in the pipeline |
| if (isPipeline) { |
| fromData = out; |
| } |
| } |
| return fromData; |
| } |
| NodeData toData = getNodeData(node); |
| |
| printNode(writer, toData); |
| |
| if (fromData != null) { |
| writer.print(fromData.id); |
| writer.print(" -> "); |
| writer.print(toData.id); |
| writer.println(" ["); |
| |
| String label = fromData.edgeLabel; |
| if (isNotEmpty(label)) { |
| writer.println("label = \"" + label + "\""); |
| } |
| writer.println("];"); |
| } |
| |
| // now lets write any children |
| List<ProcessorDefinition> outputs = toData.outputs; |
| if (outputs != null) { |
| for (ProcessorDefinition output : outputs) { |
| NodeData newData = printNode(writer, toData, output); |
| if (!isMulticastNode(node)) { |
| toData = newData; |
| } |
| } |
| } |
| return toData; |
| } |
| |
| protected void printNode(PrintWriter writer, NodeData data) { |
| if (!data.nodeWritten) { |
| data.nodeWritten = true; |
| |
| writer.println(); |
| writer.print(data.id); |
| writer.println(" ["); |
| writer.println("label = \"" + data.label + "\""); |
| writer.println("tooltip = \"" + data.tooltop + "\""); |
| if (data.url != null) { |
| writer.println("URL = \"" + data.url + "\""); |
| } |
| |
| String image = data.image; |
| if (image != null) { |
| writer.println("shapefile = \"" + image + "\""); |
| writer.println("peripheries=0"); |
| } |
| String shape = data.shape; |
| if (shape == null && image != null) { |
| shape = "custom"; |
| } |
| if (shape != null) { |
| writer.println("shape = \"" + shape + "\""); |
| } |
| writer.println("];"); |
| writer.println(); |
| } |
| } |
| |
| protected void generateFile(PrintWriter writer, Map<String, List<RouteDefinition>> map) { |
| writer.println("digraph CamelRoutes {"); |
| writer.println(); |
| |
| writer.println("node [style = \"rounded,filled\", fillcolor = yellow, " |
| + "fontname=\"Helvetica-Oblique\"];"); |
| writer.println(); |
| printRoutes(writer, map); |
| |
| writer.println("}"); |
| } |
| |
| |
| } |