| /** |
| * 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.hadoop.mapred.lib; |
| |
| import java.io.IOException; |
| |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.mapred.JobConf; |
| import org.apache.hadoop.mapred.OutputFormat; |
| import org.apache.hadoop.mapred.RecordWriter; |
| import org.apache.hadoop.mapred.Reporter; |
| import org.apache.hadoop.util.Progressable; |
| |
| /** |
| * FilterOutputFormat is a convenience class that wraps OutputFormat. |
| * @deprecated Use |
| * {@link org.apache.hadoop.mapreduce.lib.output.FilterOutputFormat} instead. |
| */ |
| @Deprecated |
| public class FilterOutputFormat<K, V> implements OutputFormat<K, V> { |
| |
| protected OutputFormat<K,V> baseOut; |
| |
| public FilterOutputFormat () { |
| this.baseOut = null; |
| } |
| |
| /** |
| * Create a FilterOutputFormat based on the supplied output format. |
| * @param out the underlying OutputFormat |
| */ |
| public FilterOutputFormat (OutputFormat<K,V> out) { |
| this.baseOut = out; |
| } |
| |
| public RecordWriter<K, V> getRecordWriter(FileSystem ignored, JobConf job, |
| String name, Progressable progress) throws IOException { |
| return getBaseOut().getRecordWriter(ignored, job, name, progress); |
| } |
| |
| public void checkOutputSpecs(FileSystem ignored, JobConf job) |
| throws IOException { |
| getBaseOut().checkOutputSpecs(ignored, job); |
| } |
| |
| private OutputFormat<K,V> getBaseOut() throws IOException { |
| if (baseOut == null) { |
| throw new IOException("Outputformat not set for FilterOutputFormat"); |
| } |
| return baseOut; |
| } |
| |
| /** |
| * <code>FilterRecordWriter</code> is a convenience wrapper |
| * class that implements {@link RecordWriter}. |
| */ |
| |
| public static class FilterRecordWriter<K,V> implements RecordWriter<K,V> { |
| |
| protected RecordWriter<K,V> rawWriter = null; |
| |
| public FilterRecordWriter() throws IOException { |
| rawWriter = null; |
| } |
| |
| public FilterRecordWriter(RecordWriter<K,V> rawWriter) throws IOException { |
| this.rawWriter = rawWriter; |
| } |
| |
| public void close(Reporter reporter) throws IOException { |
| getRawWriter().close(reporter); |
| } |
| |
| public void write(K key, V value) throws IOException { |
| getRawWriter().write(key, value); |
| } |
| |
| private RecordWriter<K,V> getRawWriter() throws IOException { |
| if (rawWriter == null) { |
| throw new IOException ("Record Writer not set for FilterRecordWriter"); |
| } |
| return rawWriter; |
| } |
| } |
| |
| } |