package org.apache.blur.console.servlets;
/**
* 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.
*/
import org.apache.blur.console.model.User;
import org.apache.blur.console.util.HttpUtil;
import org.apache.blur.console.util.NodeUtil;
import org.codehaus.jackson.map.ObjectMapper;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
public class NodesServlet extends BaseConsoleServlet {
private static final long serialVersionUID = 6522056391102413432L;
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {
String path = req.getPathInfo();
if (path == null) {
sendNodeStatus(req, res);
} else {
sendNotFound(res, req.getRequestURI());
}
}
private void sendNodeStatus(HttpServletRequest request, HttpServletResponse response) throws IOException {
Map<String, Object> nodeData = new HashMap<String, Object>();
try {
nodeData.put("zookeepers", NodeUtil.getZookeeperStatus());
nodeData.put("controllers", NodeUtil.getControllerStatus());
nodeData.put("clusters", NodeUtil.getClusterStatus());
} catch (IOException e) {
throw new IOException(e);
} catch (Exception e) {
sendError(response, e);
return;
}
HttpUtil.sendResponse(response, new ObjectMapper().writeValueAsString(nodeData), HttpUtil.JSON);
}
}