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The Core Camel Java DSL based router
/**
* 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.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import org.apache.camel.CamelContext;
import org.apache.camel.model.ModelCamelContext;
import org.apache.camel.model.RouteDefinition;
/**
* @version
*/
@Deprecated
public abstract class GraphGeneratorSupport extends GraphSupport {
protected String dir;
protected int clusterCounter;
protected String extension;
private final boolean makeParentDirs = true;
private Map> routeGroupMap;
protected GraphGeneratorSupport(String dir, String extension) {
this.dir = dir;
this.extension = extension;
}
public String getRoutesText(CamelContext context) throws IOException {
// used by web console
List routes = ((ModelCamelContext)context).getRouteDefinitions();
routeGroupMap = createRouteGroupMap(routes);
return createRouteMapText();
}
private String createRouteMapText() {
StringWriter buffer = new StringWriter();
PrintWriter writer = new PrintWriter(buffer);
generateFile(writer, routeGroupMap);
writer.close();
return buffer.toString();
}
public void drawRoutes(CamelContext context) throws IOException {
File parent = new File(dir);
if (makeParentDirs) {
parent.mkdirs();
}
List routes = context.getRouteDefinitions();
routeGroupMap = createRouteGroupMap(routes);
// generate the global file
generateFile(parent, "routes" + extension, routeGroupMap);
if (routeGroupMap.size() >= 1) {
Set>> entries = routeGroupMap.entrySet();
for (Map.Entry> entry : entries) {
Map> map = new HashMap>();
String group = entry.getKey();
map.put(group, entry.getValue());
// generate the file containing just the routes in this group
generateFile(parent, group + extension, map);
}
}
}
private void generateFile(File parent, String fileName, Map> map) throws IOException {
nodeMap.clear();
clusterCounter = 0;
PrintWriter writer = new PrintWriter(new FileWriter(new File(parent, fileName)));
try {
generateFile(writer, map);
} finally {
writer.close();
}
}
protected abstract void generateFile(PrintWriter writer, Map> map);
}