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/*
* Copyright (c) 2010-2015 Pivotal Software, Inc. All rights reserved.
*
* Licensed 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. See accompanying
* LICENSE file.
*/
package com.gemstone.gemfire.cache.hdfs.internal.hoplog.mapreduce;
import java.io.IOException;
import com.gemstone.gemfire.cache.hdfs.internal.PersistedEventImpl;
import com.gemstone.gemfire.cache.hdfs.internal.SortedHDFSQueuePersistedEvent;
import com.gemstone.gemfire.cache.hdfs.internal.hoplog.AbstractHoplog;
import com.gemstone.gemfire.cache.hdfs.internal.hoplog.HFileSortedOplog;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hbase.regionserver.metrics.SchemaMetrics;
/**
* An iterator that iterates over a split in a read/write hoplog
* @author dsmith
*/
public class RWSplitIterator extends HDFSSplitIterator {
public RWSplitIterator(FileSystem fs, Path[] path, long[] start, long[] len, long startTime, long endTime) throws IOException {
super(fs, path, start, len, startTime, endTime);
}
@Override
protected AbstractHoplog getHoplog(FileSystem fs, Path path) throws IOException {
SchemaMetrics.configureGlobally(fs.getConf());
return HFileSortedOplog.getHoplogForLoner(fs, path);
}
public PersistedEventImpl getDeserializedValue() throws ClassNotFoundException, IOException {
return SortedHDFSQueuePersistedEvent.fromBytes(iterator.getValue());
}
}