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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.hadoop.hbase.regionserver.compactions;
import static org.apache.hadoop.hbase.regionserver.Store.NO_PRIORITY;
import java.util.Collection;
import java.util.Collections;
import java.util.stream.Collectors;
import org.apache.hadoop.hbase.regionserver.HStoreFile;
import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;
import org.apache.hadoop.util.StringUtils.TraditionalBinaryPrefix;
import org.apache.yetus.audience.InterfaceAudience;
import org.apache.hbase.thirdparty.com.google.common.base.Preconditions;
/**
* This class holds all logical details necessary to run a compaction.
*/
@InterfaceAudience.Private
public class CompactionRequestImpl implements CompactionRequest {
// was this compaction promoted to an off-peak
private boolean isOffPeak = false;
private enum DisplayCompactionType { MINOR, ALL_FILES, MAJOR }
private DisplayCompactionType isMajor = DisplayCompactionType.MINOR;
private int priority = NO_PRIORITY;
private Collection filesToCompact;
private boolean isAfterSplit = false;
// CompactRequest object creation time.
private long selectionTime;
private String regionName = "";
private String storeName = "";
private long totalSize = -1L;
private CompactionLifeCycleTracker tracker = CompactionLifeCycleTracker.DUMMY;
public CompactionRequestImpl(Collection files) {
this.selectionTime = EnvironmentEdgeManager.currentTime();
this.filesToCompact = Preconditions.checkNotNull(files, "files for compaction can not null");
recalculateSize();
}
public void updateFiles(Collection files) {
this.filesToCompact = Preconditions.checkNotNull(files, "files for compaction can not null");
recalculateSize();
}
@Override
public Collection getFiles() {
return Collections.unmodifiableCollection(this.filesToCompact);
}
/**
* Sets the region/store name, for logging.
*/
public void setDescription(String regionName, String storeName) {
this.regionName = regionName;
this.storeName = storeName;
}
/** Gets the total size of all StoreFiles in compaction */
@Override
public long getSize() {
return totalSize;
}
@Override
public boolean isAllFiles() {
return this.isMajor == DisplayCompactionType.MAJOR
|| this.isMajor == DisplayCompactionType.ALL_FILES;
}
@Override
public boolean isMajor() {
return this.isMajor == DisplayCompactionType.MAJOR;
}
/** Gets the priority for the request */
@Override
public int getPriority() {
return priority;
}
/** Sets the priority for the request */
public void setPriority(int p) {
this.priority = p;
}
@Override
public boolean isOffPeak() {
return this.isOffPeak;
}
public void setOffPeak(boolean value) {
this.isOffPeak = value;
}
@Override
public long getSelectionTime() {
return this.selectionTime;
}
/**
* Specify if this compaction should be a major compaction based on the state of the store
* @param isMajor true if the system determines that this compaction should be a major
* compaction
*/
public void setIsMajor(boolean isMajor, boolean isAllFiles) {
assert isAllFiles || !isMajor;
this.isMajor = !isAllFiles ? DisplayCompactionType.MINOR
: (isMajor ? DisplayCompactionType.MAJOR : DisplayCompactionType.ALL_FILES);
}
public void setTracker(CompactionLifeCycleTracker tracker) {
this.tracker = tracker;
}
public CompactionLifeCycleTracker getTracker() {
return tracker;
}
public boolean isAfterSplit() {
return isAfterSplit;
}
public void setAfterSplit(boolean afterSplit) {
isAfterSplit = afterSplit;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((filesToCompact == null) ? 0 : filesToCompact.hashCode());
result = prime * result + ((isMajor == null) ? 0 : isMajor.hashCode());
result = prime * result + (isOffPeak ? 1231 : 1237);
result = prime * result + priority;
result = prime * result + ((regionName == null) ? 0 : regionName.hashCode());
result = prime * result + (int) (selectionTime ^ (selectionTime >>> 32));
result = prime * result + ((storeName == null) ? 0 : storeName.hashCode());
result = prime * result + (int) (totalSize ^ (totalSize >>> 32));
result = prime * result + ((tracker == null) ? 0 : tracker.hashCode());
result = prime * result + (isAfterSplit ? 1231 : 1237);
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
CompactionRequestImpl other = (CompactionRequestImpl) obj;
if (filesToCompact == null) {
if (other.filesToCompact != null) {
return false;
}
} else if (!filesToCompact.equals(other.filesToCompact)) {
return false;
}
if (isMajor != other.isMajor) {
return false;
}
if (isOffPeak != other.isOffPeak) {
return false;
}
if (priority != other.priority) {
return false;
}
if (regionName == null) {
if (other.regionName != null) {
return false;
}
} else if (!regionName.equals(other.regionName)) {
return false;
}
if (selectionTime != other.selectionTime) {
return false;
}
if (storeName == null) {
if (other.storeName != null) {
return false;
}
} else if (!storeName.equals(other.storeName)) {
return false;
}
if (totalSize != other.totalSize) {
return false;
}
if (isAfterSplit != other.isAfterSplit) {
return false;
}
if (tracker == null) {
if (other.tracker != null) {
return false;
}
} else if (!tracker.equals(other.tracker)) {
return false;
}
return true;
}
@Override
public String toString() {
String fsList = filesToCompact.stream().filter(f -> f.getReader() != null)
.map(f -> TraditionalBinaryPrefix.long2String(f.getReader().length(), "", 1))
.collect(Collectors.joining(", "));
return "regionName=" + regionName + ", storeName=" + storeName + ", fileCount=" +
this.getFiles().size() + ", fileSize=" +
TraditionalBinaryPrefix.long2String(totalSize, "", 1) +
((fsList.isEmpty()) ? "" : " (" + fsList + ")") + ", priority=" + priority + ", time=" +
selectionTime;
}
/**
* Recalculate the size of the compaction based on current files.
*/
private void recalculateSize() {
this.totalSize = filesToCompact.stream().map(HStoreFile::getReader)
.mapToLong(r -> r != null ? r.length() : 0L).sum();
}
}