MastersResource.java example

Explorer
helios-master
/*-
 * -\-\-
 * Helios Services
 * --
 * Copyright (C) 2016 Spotify AB
 * --
 * 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.spotify.helios.master.resources;

import static javax.ws.rs.core.MediaType.APPLICATION_JSON;

import com.codahale.metrics.annotation.ExceptionMetered;
import com.codahale.metrics.annotation.Timed;
import com.spotify.helios.master.MasterModel;
import java.util.List;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;

@Path("/masters")
public class MastersResource {

  private final MasterModel model;

  public MastersResource(final MasterModel model) {
    this.model = model;
  }

  /**
   * Returns a list of names of running Helios masters.
   * @return The list of names.
   */
  @GET
  @Produces(APPLICATION_JSON)
  @Timed
  @ExceptionMetered
  public List<String> list() {
    return model.getRunningMasters();
  }
}