Package com.linkedin.helix

Source Code of com.linkedin.helix.StopServiceResource

/**
* Copyright (C) 2012 LinkedIn Inc <opensource@linkedin.com>
*
* 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.linkedin.helix;

import java.io.IOException;
import java.io.Reader;
import java.nio.ByteBuffer;
import java.nio.CharBuffer;
import java.nio.channels.ReadableByteChannel;
import java.util.List;

import org.apache.log4j.Logger;
import org.codehaus.jackson.JsonGenerationException;
import org.codehaus.jackson.map.JsonMappingException;
import org.restlet.Component;
import org.restlet.Context;
import org.restlet.data.MediaType;
import org.restlet.data.Method;
import org.restlet.data.Request;
import org.restlet.data.Response;
import org.restlet.data.Status;
import org.restlet.resource.Representation;
import org.restlet.resource.Resource;
import org.restlet.resource.ResourceException;
import org.restlet.resource.StringRepresentation;
import org.restlet.resource.Variant;

import com.linkedin.helix.tools.ClusterSetup;

public class StopServiceResource extends Resource {


  private static final Logger logger = Logger
      .getLogger(StopServiceResource.class);

  Context _context;

  public StopServiceResource(Context context,
      Request request,
      Response response)
  {
    super(context, request, response);
    getVariants().add(new Variant(MediaType.TEXT_PLAIN));
    getVariants().add(new Variant(MediaType.APPLICATION_JSON));
    _context = context;
  }

  public boolean allowGet()
  {
    System.out.println("PutResource.allowGet()");
    return true;
  }

  public boolean allowPost()
  {
    System.out.println("PutResource.allowPost()");
    return false;
  }

  public boolean allowPut()
  {
    System.out.println("PutResource.allowPut()");
    return false;
  }

  public boolean allowDelete()
  {
    return false;
  }


  class StopThread implements Runnable {

    Component _component;
    MockNode _mockNode;
   
    StopThread(Component c, MockNode m) {
      _component = c;
      _mockNode = m;
    }
   
    @Override
    public void run() {
      try {
        //sleep for 1 second, then end service
        Thread.sleep(1000);
        _component.stop();
        _mockNode.disconnect();
        System.exit(0);
      } catch (Exception e) {
        logger.error("Unable to stop service: "+e);
        e.printStackTrace();
      }
    }
   
  }
 
  //XXX: handling both gets and puts here for now
  public Representation represent(Variant variant)
  {
    System.out.println("StopServiceResource.represent()");
    StringRepresentation presentation = null;
    try
    {
      logger.debug("in represent, stopping service");
      Component component = (Component)_context.getAttributes().get(MockEspressoService.COMPONENT_NAME);
      EspressoStorageMockNode mock = (EspressoStorageMockNode)_context.getAttributes().get(MockEspressoService.CONTEXT_MOCK_NODE_NAME);
      presentation = new StringRepresentation("Stopping in 1 second", MediaType.APPLICATION_JSON);
      Thread stopper = new Thread(new StopThread(component, mock));
      stopper.start();
    }

    catch(Exception e)
    {
      String error = "Error shutting down";
      presentation = new StringRepresentation(error, MediaType.APPLICATION_JSON);       
      e.printStackTrace();
   
    return presentation;
  }

  public void storeRepresentation(Representation entity) throws ResourceException {

  }



}
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