com.spotify.helios.master.resources.MastersResource Maven / Gradle / Ivy

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/*
 * Copyright (c) 2014 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 com.spotify.helios.master.MasterModel;
import com.codahale.metrics.annotation.ExceptionMetered;
import com.codahale.metrics.annotation.Timed;

import java.util.List;

import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;

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

@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 list() {
    return model.getRunningMasters();
  }
}