/*
 * 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.runtime.deployment.InputChannelDeploymentDescriptor;
import org.apache.flink.runtime.jobgraph.IntermediateDataSetID;
import org.apache.flink.util.Preconditions;

import java.io.Serializable;

/**
 * Contains information where to find a partition. The partition is defined by the
 * {@link IntermediateDataSetID} and the partition location is specified by
 * {@link InputChannelDeploymentDescriptor}.
 */
public class PartitionInfo implements Serializable {

	private static final long serialVersionUID = 1724490660830968430L;

	private final IntermediateDataSetID intermediateDataSetID;
	private final InputChannelDeploymentDescriptor inputChannelDeploymentDescriptor;

	public PartitionInfo(IntermediateDataSetID intermediateResultPartitionID, InputChannelDeploymentDescriptor inputChannelDeploymentDescriptor) {
		this.intermediateDataSetID = Preconditions.checkNotNull(intermediateResultPartitionID);
		this.inputChannelDeploymentDescriptor = Preconditions.checkNotNull(inputChannelDeploymentDescriptor);
	}

	public IntermediateDataSetID getIntermediateDataSetID() {
		return intermediateDataSetID;
	}

	public InputChannelDeploymentDescriptor getInputChannelDeploymentDescriptor() {
		return inputChannelDeploymentDescriptor;
	}
}