001/**
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.camel.view;
018
019import java.io.File;
020import java.io.FileWriter;
021import java.io.IOException;
022import java.io.PrintWriter;
023import java.io.StringWriter;
024import java.util.HashMap;
025import java.util.List;
026import java.util.Map;
027import java.util.Set;
028
029import org.apache.camel.CamelContext;
030import org.apache.camel.model.ModelCamelContext;
031import org.apache.camel.model.RouteDefinition;
032
033/**
034 * @version 
035 */
036@Deprecated
037public abstract class GraphGeneratorSupport extends GraphSupport {
038    protected String dir;
039    protected int clusterCounter;
040    protected String extension;
041
042    private final boolean makeParentDirs = true;
043    private Map<String, List<RouteDefinition>> routeGroupMap;
044
045    protected GraphGeneratorSupport(String dir, String extension) {
046        this.dir = dir;
047        this.extension = extension;
048    }
049
050    public String getRoutesText(CamelContext context) throws IOException {
051        // used by web console
052        List<RouteDefinition> routes = ((ModelCamelContext)context).getRouteDefinitions();
053        routeGroupMap = createRouteGroupMap(routes);
054        return createRouteMapText();
055    }
056
057    private String createRouteMapText() {
058        StringWriter buffer = new StringWriter();
059        PrintWriter writer = new PrintWriter(buffer);
060        generateFile(writer, routeGroupMap);
061        writer.close();
062        return buffer.toString();
063    }
064
065    public void drawRoutes(CamelContext context) throws IOException {
066        File parent = new File(dir);
067        if (makeParentDirs) {
068            parent.mkdirs();
069        }
070        List<RouteDefinition> routes = context.getRouteDefinitions();
071        routeGroupMap = createRouteGroupMap(routes);
072
073        // generate the global file
074        generateFile(parent, "routes" + extension, routeGroupMap);
075
076        if (routeGroupMap.size() >= 1) {
077            Set<Map.Entry<String, List<RouteDefinition>>> entries = routeGroupMap.entrySet();
078            for (Map.Entry<String, List<RouteDefinition>> entry : entries) {
079
080                Map<String, List<RouteDefinition>> map = new HashMap<String, List<RouteDefinition>>();
081                String group = entry.getKey();
082                map.put(group, entry.getValue());
083
084                // generate the file containing just the routes in this group
085                generateFile(parent, group + extension, map);
086            }
087        }
088    }
089
090    private void generateFile(File parent, String fileName, Map<String, List<RouteDefinition>> map) throws IOException {
091        nodeMap.clear();
092        clusterCounter = 0;
093
094        PrintWriter writer = new PrintWriter(new FileWriter(new File(parent, fileName)));
095        try {
096            generateFile(writer, map);
097        } finally {
098            writer.close();
099        }
100    }
101
102    protected abstract void generateFile(PrintWriter writer, Map<String, List<RouteDefinition>> map);
103
104}