com.github.dryangkun.hbase.tidx.hive.ResultWritable.java Source code

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Here is the source code for com.github.dryangkun.hbase.tidx.hive.ResultWritable.java

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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 com.github.dryangkun.hbase.tidx.hive;

import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;

import org.apache.hadoop.hbase.Cell;
import org.apache.hadoop.hbase.CellUtil;
import org.apache.hadoop.hbase.KeyValue;
import org.apache.hadoop.hbase.client.Result;
import org.apache.hadoop.hbase.protobuf.ProtobufUtil;
import org.apache.hadoop.hbase.protobuf.generated.ClientProtos;
import org.apache.hadoop.io.Writable;

public class ResultWritable implements Writable {

    private Result result;

    public ResultWritable() {

    }

    public ResultWritable(Result result) {
        this.result = result;
    }

    public Result getResult() {
        return result;
    }

    public void setResult(Result result) {
        this.result = result;
    }

    @Override
    public void readFields(final DataInput in) throws IOException {
        ClientProtos.Result protosResult = ClientProtos.Result.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);
        }
        result = ProtobufUtil.toResult(protosResult, CellUtil.createCellScanner(kvs));
    }

    @Override
    public void write(final DataOutput out) throws IOException {
        ProtobufUtil.toResultNoData(result).writeDelimitedTo(DataOutputOutputStream.from(out));
        out.writeInt(result.size());
        for (KeyValue kv : result.list()) {
            KeyValue.write(kv, out);
        }
    }

}