src/main/java/org/apache/hadoop/chukwa/hicc/rest/DashboardController.java

/*
 * 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.hadoop.chukwa.hicc.rest;

import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.Consumes;
import javax.ws.rs.GET;
import javax.ws.rs.PUT;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.Response.Status;

import org.apache.hadoop.chukwa.datastore.ChukwaHBaseStore;
import org.apache.hadoop.chukwa.hicc.bean.Dashboard;
import org.apache.log4j.Logger;

import com.google.gson.Gson;

@Path("dashboard")
public class DashboardController {
  static Logger LOG = Logger.getLogger(DashboardController.class);

  @Context
  private ServletContext context;
  
  @GET
  @Path("load/{id}")
  public String load(@Context HttpServletRequest request, @PathParam("id") String id) {
    Gson gson = new Gson();
    Dashboard dash = ChukwaHBaseStore.getDashboard(id, request.getRemoteUser());
    String json = gson.toJson(dash);
    return json;
  }
  
  @PUT
  @Path("save/{id}")
  @Consumes(MediaType.APPLICATION_JSON)
  public Response save(@Context HttpServletRequest request, @PathParam("id") String id, String buffer) {
    Gson gson = new Gson();
    Dashboard dash = gson.fromJson(buffer, Dashboard.class);
    boolean result = ChukwaHBaseStore.updateDashboard(id, request.getRemoteUser(), dash);
    if(!result) {
      return Response.status(Status.BAD_REQUEST).build();
    }
    return Response.ok().build();
  }
  
  @GET
  @Path("whoami")
  public String whoami(@Context HttpServletRequest request) {
    return request.getRemoteUser();
  }
}