| /* |
| * 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.phoenix.mapreduce; |
| |
| import java.io.DataInput; |
| import java.io.DataOutput; |
| import java.io.IOException; |
| import java.util.List; |
| |
| import org.apache.hadoop.hbase.client.Scan; |
| import org.apache.hadoop.hbase.protobuf.ProtobufUtil; |
| import org.apache.hadoop.hbase.protobuf.generated.ClientProtos; |
| import org.apache.hadoop.io.Writable; |
| import org.apache.hadoop.io.WritableUtils; |
| import org.apache.hadoop.mapreduce.InputSplit; |
| import org.apache.phoenix.query.KeyRange; |
| |
| import com.google.common.base.Preconditions; |
| import com.google.common.collect.Lists; |
| |
| /** |
| * Input split class to hold the lower and upper bound range. {@link KeyRange} |
| */ |
| public class PhoenixInputSplit extends InputSplit implements Writable { |
| |
| private List<Scan> scans; |
| private KeyRange keyRange; |
| private String regionLocation = null; |
| private long regionSize = 0; |
| |
| /** |
| * No Arg constructor |
| */ |
| public PhoenixInputSplit() { |
| } |
| |
| /** |
| * |
| * @param keyRange |
| */ |
| public PhoenixInputSplit(final List<Scan> scans) { |
| this(scans, 0, null); |
| } |
| |
| public PhoenixInputSplit(final List<Scan> scans, long regionSize, String regionLocation) { |
| Preconditions.checkNotNull(scans); |
| Preconditions.checkState(!scans.isEmpty()); |
| this.scans = scans; |
| this.regionSize = regionSize; |
| this.regionLocation = regionLocation; |
| init(); |
| } |
| |
| public List<Scan> getScans() { |
| return scans; |
| } |
| |
| public KeyRange getKeyRange() { |
| return keyRange; |
| } |
| |
| private void init() { |
| this.keyRange = KeyRange.getKeyRange(scans.get(0).getStartRow(), scans.get(scans.size()-1).getStopRow()); |
| } |
| |
| @Override |
| public void readFields(DataInput input) throws IOException { |
| regionLocation = WritableUtils.readString(input); |
| regionSize = WritableUtils.readVLong(input); |
| int count = WritableUtils.readVInt(input); |
| scans = Lists.newArrayListWithExpectedSize(count); |
| for (int i = 0; i < count; i++) { |
| byte[] protoScanBytes = new byte[WritableUtils.readVInt(input)]; |
| input.readFully(protoScanBytes); |
| ClientProtos.Scan protoScan = ClientProtos.Scan.parseFrom(protoScanBytes); |
| Scan scan = ProtobufUtil.toScan(protoScan); |
| scans.add(scan); |
| } |
| init(); |
| } |
| |
| @Override |
| public void write(DataOutput output) throws IOException { |
| WritableUtils.writeString(output, regionLocation); |
| WritableUtils.writeVLong(output, regionSize); |
| |
| Preconditions.checkNotNull(scans); |
| WritableUtils.writeVInt(output, scans.size()); |
| for (Scan scan : scans) { |
| ClientProtos.Scan protoScan = ProtobufUtil.toScan(scan); |
| byte[] protoScanBytes = protoScan.toByteArray(); |
| WritableUtils.writeVInt(output, protoScanBytes.length); |
| output.write(protoScanBytes); |
| } |
| } |
| |
| @Override |
| public long getLength() throws IOException, InterruptedException { |
| return regionSize; |
| } |
| |
| @Override |
| public String[] getLocations() throws IOException, InterruptedException { |
| if(regionLocation == null) { |
| return new String[]{}; |
| } |
| else { |
| return new String[]{regionLocation}; |
| } |
| } |
| |
| @Override |
| public int hashCode() { |
| final int prime = 31; |
| int result = 1; |
| result = prime * result + keyRange.hashCode(); |
| return result; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) { return true; } |
| if (obj == null) { return false; } |
| if (!(obj instanceof PhoenixInputSplit)) { return false; } |
| PhoenixInputSplit other = (PhoenixInputSplit)obj; |
| if (keyRange == null) { |
| if (other.keyRange != null) { return false; } |
| } else if (!keyRange.equals(other.keyRange)) { return false; } |
| return true; |
| } |
| |
| } |