/*
 * 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 org.apache.hadoop.hive.llap.tezplugins.scheduler;

import java.util.concurrent.CancellationException;

import com.google.common.util.concurrent.FutureCallback;
import org.slf4j.Logger;

public final class LoggingFutureCallback implements FutureCallback<Void> {
  private final String componentName;
  private final Logger LOG;

  public LoggingFutureCallback(String componentName, Logger log) {
    this.componentName = componentName;
    LOG = log;
  }

  @Override
  public void onSuccess(Void result) {
    LOG.info("{} exited", componentName);
  }

  @Override
  public void onFailure(Throwable t) {
    if (t instanceof CancellationException) {
      LOG.info("{} was cancelled", componentName, t.getMessage());
    } else {
      LOG.warn("{} exited with error", componentName, t);
    }
  }
}