package org.apache.hadoop.yarn.server.applicationhistoryservice.metrics.timeline.sink;

import org.apache.hadoop.yarn.server.applicationhistoryservice.metrics.timeline.source.InternalSourceProvider;
import org.apache.hadoop.yarn.server.applicationhistoryservice.metrics.timeline.source.InternalSourceProvider.SOURCE_NAME;

/**
 * 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
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * 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.
 */

/**
 * Configurable provider for sink classes that match the metrics sources.
 * Provider can return same sink of different sinks for each source.
 */
public interface ExternalSinkProvider {

  /**
   * Return an instance of the metrics sink for the give source
   * @return {@link ExternalMetricsSink}
   */
  ExternalMetricsSink getExternalMetricsSink(SOURCE_NAME sourceName);
}