| /* |
| * Copyright 2009-2010 by The Regents of the University of California |
| * 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 from |
| * |
| * 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 edu.uci.ics.pregelix.api.io; |
| |
| import java.io.DataInput; |
| import java.io.DataOutput; |
| import java.io.IOException; |
| import java.io.Serializable; |
| |
| import org.apache.hadoop.io.Writable; |
| import org.apache.hadoop.mapreduce.lib.input.FileSplit; |
| |
| /** |
| * This InputSplit will not give any ordering or location data. It is used |
| * internally by BspInputFormat (which determines how many tasks to run the |
| * application on). Users should not use this directly. |
| */ |
| public class BasicGenInputSplit extends FileSplit implements Writable, |
| Serializable { |
| private static final long serialVersionUID = 1L; |
| /** Number of splits */ |
| private int numSplits = -1; |
| /** Split index */ |
| private int splitIndex = -1; |
| |
| public BasicGenInputSplit() { |
| super(null, 0, 0, null); |
| } |
| |
| public BasicGenInputSplit(int splitIndex, int numSplits) { |
| super(null, 0, 0, null); |
| this.splitIndex = splitIndex; |
| this.numSplits = numSplits; |
| } |
| |
| @Override |
| public long getLength() { |
| return 0; |
| } |
| |
| @Override |
| public String[] getLocations() throws IOException { |
| return new String[] {}; |
| } |
| |
| @Override |
| public void readFields(DataInput in) throws IOException { |
| splitIndex = in.readInt(); |
| numSplits = in.readInt(); |
| } |
| |
| @Override |
| public void write(DataOutput out) throws IOException { |
| out.writeInt(splitIndex); |
| out.writeInt(numSplits); |
| } |
| |
| public int getSplitIndex() { |
| return splitIndex; |
| } |
| |
| public int getNumSplits() { |
| return numSplits; |
| } |
| |
| @Override |
| public String toString() { |
| return "'" + getClass().getCanonicalName() + ", index=" |
| + getSplitIndex() + ", num=" + getNumSplits(); |
| } |
| } |