BrokersResource.java

/**
 * Copyright 2015 Confluent Inc.
 *
 * 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 io.confluent.kafkarest.resources;

import javax.validation.Valid;
import javax.ws.rs.Consumes;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;

import io.confluent.kafkarest.Context;
import io.confluent.kafkarest.Versions;
import io.confluent.kafkarest.entities.BrokerList;
import io.confluent.rest.annotations.PerformanceMetric;

/**
 * Resource representing the collection of all available brokers.
 */
@Path("/brokers")
@Produces({Versions.KAFKA_V1_JSON_WEIGHTED, Versions.KAFKA_DEFAULT_JSON_WEIGHTED,
           Versions.JSON_WEIGHTED, Versions.KAFKA_V2_JSON_WEIGHTED})
@Consumes()
public class BrokersResource {

  private final Context ctx;

  public BrokersResource(Context ctx) {
    this.ctx = ctx;
  }

  @GET
  @Valid
  @PerformanceMetric("brokers.list")
  public BrokerList list() {
    return new BrokerList(ctx.getMetadataObserver().getBrokerIds());
  }
}