| /* |
| * Copyright 2009-2013 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.hyracks.hdfs.lib; |
| |
| import java.io.DataOutput; |
| |
| import edu.uci.ics.hyracks.api.context.IHyracksTaskContext; |
| import edu.uci.ics.hyracks.api.exceptions.HyracksDataException; |
| import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference; |
| import edu.uci.ics.hyracks.hdfs.api.ITupleWriter; |
| import edu.uci.ics.hyracks.hdfs.api.ITupleWriterFactory; |
| |
| public class TextTupleWriterFactory implements ITupleWriterFactory { |
| private static final long serialVersionUID = 1L; |
| |
| @Override |
| public ITupleWriter getTupleWriter(IHyracksTaskContext ctx) { |
| return new ITupleWriter() { |
| private byte newLine = "\n".getBytes()[0]; |
| |
| @Override |
| public void open(DataOutput output) { |
| |
| } |
| |
| @Override |
| public void write(DataOutput output, ITupleReference tuple) throws HyracksDataException { |
| byte[] data = tuple.getFieldData(0); |
| int start = tuple.getFieldStart(0); |
| int len = tuple.getFieldLength(0); |
| try { |
| output.write(data, start, len); |
| output.writeByte(newLine); |
| } catch (Exception e) { |
| throw new HyracksDataException(e); |
| } |
| } |
| |
| @Override |
| public void close(DataOutput output) { |
| |
| } |
| |
| }; |
| } |
| |
| } |