src/main/java/org/apache/hadoop/chukwa/rest/resource/WidgetResource.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.rest.resource;

import java.util.HashMap;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.chukwa.rest.bean.CatalogBean;

import org.apache.hadoop.chukwa.rest.bean.ReturnCodeBean;
import org.apache.hadoop.chukwa.rest.bean.WidgetBean;
import org.apache.hadoop.chukwa.datastore.WidgetStore;


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.WebApplicationException;
import javax.ws.rs.core.Response;

@Path ("/widget1")
public class WidgetResource {
  private static Log log = LogFactory.getLog(WidgetResource.class);
  
  @GET
  @Path("wid/{wid}")
  public WidgetBean getProfile(@PathParam("wid") String wid) {
    HashMap<String, WidgetBean> list;
    try {
      list = WidgetStore.list();
    } catch (IllegalAccessException e) {
      throw new WebApplicationException(Response.status(Response.Status.NOT_FOUND)
          .entity("Widget does not exist.").build());
    }
    return list.get(wid);
  }
  
  @PUT
  @Consumes("application/json")
  public ReturnCodeBean saveWidget(WidgetBean widget) {
    try {
      WidgetStore ws = new WidgetStore();
      ws.set(widget);
    } catch(Exception e) {
      throw new WebApplicationException(Response.status(Response.Status.NOT_FOUND)
          .entity("Widget save failed.").build());
    }
    return new ReturnCodeBean(ReturnCodeBean.SUCCESS,"Saved");
  }
  
  @GET
  @Path("catalog")
  public CatalogBean getWidgetCatalog() {
    CatalogBean result;
    try {
      result = WidgetStore.getCatalog();
    } catch (IllegalAccessException e) {
      throw new WebApplicationException(Response.status(Response.Status.INTERNAL_SERVER_ERROR)
          .entity("No catalog exists.").build());
    }
    return result;
  }
}