org.apache.hadoop.hive.hbase.PutWritable Maven / Gradle / Ivy
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* 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,
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*/
package org.apache.hadoop.hive.hbase;
import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;
import org.apache.hadoop.hbase.Cell;
import org.apache.hadoop.hbase.CellScanner;
import org.apache.hadoop.hbase.CellUtil;
import org.apache.hadoop.hbase.KeyValue;
import org.apache.hadoop.hbase.KeyValueUtil;
import org.apache.hadoop.hbase.client.Put;
import org.apache.hadoop.hbase.protobuf.ProtobufUtil;
import org.apache.hadoop.hbase.protobuf.generated.ClientProtos;
import org.apache.hadoop.hbase.protobuf.generated.ClientProtos.MutationProto.MutationType;
import org.apache.hadoop.io.Writable;
public class PutWritable implements Writable {
private Put put;
public PutWritable() {
}
public PutWritable(Put put) {
this.put = put;
}
public Put getPut() {
return put;
}
@Override
public void readFields(final DataInput in)
throws IOException {
ClientProtos.MutationProto putProto = ClientProtos.MutationProto.parseDelimitedFrom(DataInputInputStream.from(in));
int size = in.readInt();
if(size < 0) {
throw new IOException("Invalid size " + size);
}
Cell[] kvs = new Cell[size];
for (int i = 0; i < kvs.length; i++) {
kvs[i] = KeyValue.create(in);
}
put = ProtobufUtil.toPut(putProto, CellUtil.createCellScanner(kvs));
}
@Override
public void write(final DataOutput out)
throws IOException {
ProtobufUtil.toMutationNoData(MutationType.PUT, put).writeDelimitedTo(DataOutputOutputStream.from(out));
out.writeInt(put.size());
CellScanner scanner = put.cellScanner();
while(scanner.advance()) {
KeyValue kv = KeyValueUtil.ensureKeyValue(scanner.current());
KeyValue.write(kv, out);
}
}
}