org.apache.flink.runtime.state.gemini.engine.snapshot.DBSnapshotMeta Maven / Gradle / Ivy
/*
* 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.state.gemini.engine.snapshot;
import java.io.Serializable;
import java.util.Arrays;
import java.util.Objects;
/**
* Encapsulates meta data for a completed DB snapshot used by backend.
* This is created by DB and returned to backend.
*/
public class DBSnapshotMeta implements Serializable{
private static final long serialVersionUID = 6595214484441644131L;
/**
* Path for DB snapshot meta.
*/
private final String snapshotMetaPath;
/**
* NameSpace for this snapshot, refer to {@link SnapshotManager#getNameSpace()}.
*/
private final String nameSpace;
/**
* ID for start region.
*/
private final int startRegionId;
/**
* ID for end region.
*/
private final int endRegionId;
/**
* The ID of the checkpoint.
*/
private final long checkpointId;
/**
* The offsets of regions.
*/
private final long[] regionOffsets;
/**
* The offset of the dfs file mapping.
*/
private final long dfsFileMappingOffset;
/**
* The offset of the local file mapping.
*/
private final long localFileMappingOffset;
/**
* Size of snapshot meta.
*/
private final long snapshotMetaSize;
/**
* Incremental size of this snapshot.
*/
private final long incrementalSize;
/**
* Full size of this snapshot.
*/
private final long fullSize;
public DBSnapshotMeta(
long checkpointId,
int startRegionId,
int endRegionId,
long[] regionOffsets,
long dfsFileMappingOffset,
long localFileMappingOffset,
long snapshotMetaSize,
long fullSize,
long incrementalSize,
String snapshotMetaPath,
String nameSpace) {
this.checkpointId = checkpointId;
this.startRegionId = startRegionId;
this.endRegionId = endRegionId;
this.regionOffsets = regionOffsets;
this.dfsFileMappingOffset = dfsFileMappingOffset;
this.localFileMappingOffset = localFileMappingOffset;
this.snapshotMetaSize = snapshotMetaSize;
this.fullSize = fullSize;
this.incrementalSize = incrementalSize;
this.snapshotMetaPath = snapshotMetaPath;
this.nameSpace = nameSpace;
}
public String getSnapshotMetaPath() {
return snapshotMetaPath;
}
public String getNameSpace() {
return nameSpace;
}
public int getStartRegionId() {
return startRegionId;
}
public int getEndRegionId() {
return endRegionId;
}
public long getCheckPointId() {
return checkpointId;
}
public long getSnapshotMetaSize() {
return snapshotMetaSize;
}
public long getFullSize() {
return fullSize;
}
public long getIncrementalSize() {
return incrementalSize;
}
public long[] getRegionOffsets() {
return regionOffsets;
}
public long getDfsFileMappingOffset() {
return dfsFileMappingOffset;
}
public long getLocalFileMappingOffset() {
return localFileMappingOffset;
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
DBSnapshotMeta that = (DBSnapshotMeta) o;
return checkpointId == that.checkpointId &&
startRegionId == that.startRegionId &&
endRegionId == that.endRegionId &&
Arrays.equals(regionOffsets, that.regionOffsets) &&
dfsFileMappingOffset == that.dfsFileMappingOffset &&
localFileMappingOffset == that.localFileMappingOffset &&
snapshotMetaSize == that.snapshotMetaSize &&
fullSize == that.fullSize &&
incrementalSize == that.incrementalSize &&
Objects.equals(snapshotMetaPath, that.snapshotMetaPath) &&
Objects.equals(nameSpace, that.nameSpace);
}
@Override
public int hashCode() {
int result = startRegionId;
result = 31 * result + endRegionId;
result = 31 * result + Arrays.hashCode(regionOffsets);
result = 31 * result + (int) (dfsFileMappingOffset ^ (dfsFileMappingOffset >>> 32));
result = 31 * result + (int) (localFileMappingOffset ^ (localFileMappingOffset >>> 32));
result = 31 * result + (int) (checkpointId ^ (checkpointId >>> 32));
result = 31 * result + (int) (snapshotMetaSize ^ (snapshotMetaSize >>> 32));
result = 31 * result + (int) (fullSize ^ (fullSize >>> 32));
result = 31 * result + (int) (incrementalSize ^ (incrementalSize >>> 32));
result = 31 * result + snapshotMetaPath.hashCode();
result = 31 * result + nameSpace.hashCode();
return result;
}
@Override
public String toString() {
return "DBSnapshotMeta{" +
"checkpointId=" + checkpointId +
", startRegionId=" + startRegionId +
", endRegionId=" + endRegionId +
", nameSpace=" + nameSpace +
", dfsFileMappingOffset=" + dfsFileMappingOffset +
", localFileMappingOffset=" + localFileMappingOffset +
", snapshotMetaSize=" + snapshotMetaSize +
", fullSize=" + fullSize +
", incrementalSize=" + incrementalSize +
", snapshotMetaPath=" + snapshotMetaPath +
'}';
}
}