| /** |
| * 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.sqoop.mapreduce.hcat; |
| |
| import java.io.DataInput; |
| import java.io.DataOutput; |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Set; |
| |
| import org.apache.hadoop.io.Writable; |
| import org.apache.hadoop.mapreduce.InputSplit; |
| import org.apache.hive.hcatalog.mapreduce.HCatSplit; |
| |
| /** |
| * An abstraction of a combined HCatSplits. |
| * |
| */ |
| public class SqoopHCatInputSplit extends InputSplit implements Writable { |
| private List<HCatSplit> hCatSplits; |
| private String[] hCatLocations; |
| private long inputLength; |
| |
| public SqoopHCatInputSplit() { |
| } |
| |
| public SqoopHCatInputSplit(List<InputSplit> splits) { |
| hCatSplits = new ArrayList<HCatSplit>(); |
| Set<String> locations = new HashSet<String>(); |
| for (int i = 0; i < splits.size(); ++i) { |
| HCatSplit hsSplit = (HCatSplit) splits.get(i); |
| hCatSplits.add(hsSplit); |
| this.inputLength += hsSplit.getLength(); |
| locations.addAll(Arrays.asList(hsSplit.getLocations())); |
| } |
| this.hCatLocations = locations.toArray(new String[0]); |
| } |
| |
| public int length() { |
| return this.hCatSplits.size(); |
| } |
| |
| public HCatSplit get(int index) { |
| return this.hCatSplits.get(index); |
| } |
| |
| @Override |
| public long getLength() throws IOException, InterruptedException { |
| if (this.inputLength == 0L) { |
| for (HCatSplit split : this.hCatSplits) { |
| this.inputLength += split.getLength(); |
| } |
| } |
| return this.inputLength; |
| } |
| |
| @Override |
| public String[] getLocations() throws IOException, InterruptedException { |
| if (this.hCatLocations == null) { |
| Set<String> locations = new HashSet<String>(); |
| for (HCatSplit split : this.hCatSplits) { |
| locations.addAll(Arrays.asList(split.getLocations())); |
| } |
| this.hCatLocations = locations.toArray(new String[0]); |
| } |
| return this.hCatLocations; |
| } |
| |
| @Override |
| public void write(DataOutput out) throws IOException { |
| out.writeLong(this.inputLength); |
| out.writeInt(this.hCatSplits.size()); |
| for (HCatSplit split : this.hCatSplits) { |
| split.write(out); |
| } |
| } |
| |
| @Override |
| public void readFields(DataInput in) throws IOException { |
| this.inputLength = in.readLong(); |
| int size = in.readInt(); |
| this.hCatSplits = new ArrayList<HCatSplit>(size); |
| for (int i = 0; i < size; ++i) { |
| HCatSplit hs = new HCatSplit(); |
| hs.readFields(in); |
| hCatSplits.add(hs); |
| } |
| } |
| } |
| |