org.apache.hadoop.fs.HdfsBlockLocation 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.hadoop.fs;
import java.io.IOException;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.hdfs.protocol.LocatedBlock;
/**
* Wrapper for {@link BlockLocation} that also includes a {@link LocatedBlock},
* allowing more detailed queries to the datanode about a block.
*
*/
@InterfaceAudience.Private
@InterfaceStability.Unstable
public class HdfsBlockLocation extends BlockLocation {
private final LocatedBlock block;
public HdfsBlockLocation(BlockLocation loc, LocatedBlock block)
throws IOException {
// Initialize with data from passed in BlockLocation
super(loc.getNames(), loc.getHosts(), loc.getTopologyPaths(),
loc.getOffset(), loc.getLength(), loc.isCorrupt());
this.block = block;
}
public LocatedBlock getLocatedBlock() {
return block;
}
}