// Copyright 2011 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.appengine.tools.pipeline.impl.servlets;
import com.google.appengine.tools.pipeline.impl.PipelineManager;
import com.google.appengine.tools.pipeline.impl.model.PipelineObjects;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* @author rudominer@google.com (Mitch Rudominer
*/
public class JsonHandler {
public static final String PATH_COMPONENT = "rpc/tree";
private static final String ROOT_PIPELINE_ID = "root_pipeline_id";
public static void doGet(HttpServletRequest req, HttpServletResponse resp)
throws ServletException {
String rootJobHandle = req.getParameter(ROOT_PIPELINE_ID);
if (null == rootJobHandle) {
throw new ServletException(ROOT_PIPELINE_ID + " parameter not found.");
}
PipelineObjects pipelineObjects = PipelineManager.queryFullPipeline(rootJobHandle);
JsonGenerator generator = new JsonGenerator(pipelineObjects);
try {
resp.getWriter().write(generator.getJson());
} catch (IOException e) {
throw new ServletException(e);
}
}
}