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/*
 * 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
 *
 *     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.flink.runtime.executiongraph;

import org.apache.flink.annotation.VisibleForTesting;
import org.apache.flink.runtime.clusterframework.types.ResourceID;
import org.apache.flink.runtime.io.network.partition.BlockingShuffleType;
import org.apache.flink.runtime.io.network.partition.JobMasterPartitionTracker;
import org.apache.flink.runtime.io.network.partition.ResultPartitionID;
import org.apache.flink.runtime.io.network.partition.ResultPartitionType;
import org.apache.flink.runtime.taskmanager.TaskManagerLocation;

import java.util.Collection;

import static org.apache.flink.util.Preconditions.checkNotNull;

/**
 * YarnShuffleWrapper for {@link JobMasterPartitionTracker}.
 */
public class JobMasterPartitionTrackerWrapper {

	private final BlockingShuffleType shuffleType;
	private final boolean radicalShuffleFailoverEnabled;
	private final JobMasterPartitionTracker partitionTracker;

	public JobMasterPartitionTrackerWrapper(
		JobMasterPartitionTracker jobMasterPartitionTracker,
		BlockingShuffleType shuffleType,
		boolean radicalShuffleFailoverEnabled) {

		this.partitionTracker = checkNotNull(jobMasterPartitionTracker);
		this.shuffleType = shuffleType;
		this.radicalShuffleFailoverEnabled = radicalShuffleFailoverEnabled;
	}

	public void startTrackingProducedPartitions(
		ExecutionAttemptID executionAttemptID,
		Collection intermediateResultPartitions,
		TaskManagerLocation taskManagerLocation) {

		checkNotNull(executionAttemptID);
		checkNotNull(intermediateResultPartitions);
		checkNotNull(taskManagerLocation);

		if (isRadicalShuffleFailoverEnabled()) {
			ResourceID resourceID = getResourceIDFromTaskManagerLocation(taskManagerLocation);

			for (IntermediateResultPartition resultPartition : intermediateResultPartitions) {
				if (resultPartition.getResultType() == ResultPartitionType.BLOCKING) {
					partitionTracker.startTrackingPartition(
						resourceID,
						new ResultPartitionID(resultPartition.getPartitionId(), executionAttemptID));
				}
			}
		}
	}

	public void stopTrackingProducedPartitions(
		ExecutionAttemptID executionAttemptID,
		Collection intermediateResultPartitions) {

		checkNotNull(executionAttemptID);
		checkNotNull(intermediateResultPartitions);

		if (isRadicalShuffleFailoverEnabled()) {
			for (IntermediateResultPartition resultPartition : intermediateResultPartitions) {
				partitionTracker.stopTrackingPartition(
					new ResultPartitionID(resultPartition.getPartitionId(), executionAttemptID));
			}
		}
	}

	public void markPartitionsFailedWithSameLocation(TaskManagerLocation taskManagerLocation) {
		checkNotNull(taskManagerLocation);

		if (isRadicalShuffleFailoverEnabled()) {
			ResourceID resourceID = getResourceIDFromTaskManagerLocation(taskManagerLocation);

			// mark partition failed.
			Collection resultPartitionIds = partitionTracker.getTrackedPartitions(resourceID);
			for (ResultPartitionID resultPartitionID : resultPartitionIds) {
				partitionTracker.markPartitionFailed(resultPartitionID);
			}
		}
	}

	public boolean isPartitionFailed(ResultPartitionID resultPartitionID) {
		checkNotNull(resultPartitionID);

		if (isRadicalShuffleFailoverEnabled()) {
			return partitionTracker.isPartitionFailed(resultPartitionID);
		}
		return false;
	}

	@VisibleForTesting
	public Collection getTrackedPartitionsByLocation(ResourceID resourceID) {
		return partitionTracker.getTrackedPartitions(resourceID);
	}

	@VisibleForTesting
	public boolean isRadicalShuffleFailoverEnabled() {
		return shuffleType == BlockingShuffleType.YARN && radicalShuffleFailoverEnabled;
	}

	public static ResourceID getResourceIDFromTaskManagerLocation(TaskManagerLocation location) {
		return new ResourceID(location.address().getHostAddress());
	}
}




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