/*
* The Alluxio Open Foundation licenses this work under the Apache License, version 2.0
* (the "License"). You may not use this work except in compliance with the License, which is
* available at www.apache.org/licenses/LICENSE-2.0
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
* either express or implied, as more fully set forth in the License.
*
* See the NOTICE file distributed with this work for information regarding copyright ownership.
*/
package alluxio.worker.block;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import javax.annotation.concurrent.ThreadSafe;
/**
* Container for the delta information in each worker to master heartbeat.
*/
@ThreadSafe
public final class BlockHeartbeatReport {
/** Map of storage tier alias to a list of blocks ids added in the last heartbeat period. */
private final Map<String, List<Long>> mAddedBlocks;
/** List of block ids removed in the last heartbeat period. */
private final List<Long> mRemovedBlocks;
/**
* Creates a new instance of {@link BlockHeartbeatReport}.
*
* @param addedBlocks added blocks
* @param removedBlocks remove blocks
*/
public BlockHeartbeatReport(Map<String, List<Long>> addedBlocks, List<Long> removedBlocks) {
mAddedBlocks = addedBlocks;
mRemovedBlocks = removedBlocks;
}
/**
* Gets the list of blocks added by the worker in the heartbeat this report represents.
*
* @return a map from storage tier alias to lists of block ids added
*/
public Map<String, List<Long>> getAddedBlocks() {
return Collections.unmodifiableMap(mAddedBlocks);
}
/**
* Gets the list of blocks removed from this worker in the heartbeat this report represents.
*
* @return a list of block ids which have been removed
*/
public List<Long> getRemovedBlocks() {
return Collections.unmodifiableList(mRemovedBlocks);
}
}