Java tutorial
/** * 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.avro.mapred; import java.io.File; import java.util.HashSet; import java.util.Set; import junit.framework.Assert; import org.apache.hadoop.fs.FileStatus; import org.apache.hadoop.fs.FileSystem; import org.apache.hadoop.fs.Path; import org.apache.hadoop.mapred.FileInputFormat; import org.apache.hadoop.mapred.JobConf; import org.junit.After; import org.junit.Before; import org.junit.Test; public class TestAvroInputFormat { private static final String TEST_DIR = System.getProperty("test.dir", ".") + File.separator + TestAvroInputFormat.class.getName(); private JobConf conf; private FileSystem fs; private Path inputDir; @Before public void setUp() throws Exception { conf = new JobConf(); fs = FileSystem.getLocal(conf); inputDir = new Path(TEST_DIR); } @After public void tearDown() throws Exception { fs.delete(inputDir, true); } @SuppressWarnings("rawtypes") @Test public void testIgnoreFilesWithoutExtension() throws Exception { fs.mkdirs(inputDir); Path avroFile = new Path(inputDir, "somefile.avro"); Path textFile = new Path(inputDir, "someotherfile.txt"); fs.create(avroFile).close(); fs.create(textFile).close(); FileInputFormat.setInputPaths(conf, inputDir); AvroInputFormat inputFormat = new AvroInputFormat(); FileStatus[] statuses = inputFormat.listStatus(conf); Assert.assertEquals(1, statuses.length); Assert.assertEquals("somefile.avro", statuses[0].getPath().getName()); conf.setBoolean(AvroInputFormat.IGNORE_FILES_WITHOUT_EXTENSION_KEY, false); statuses = inputFormat.listStatus(conf); Assert.assertEquals(2, statuses.length); Set<String> names = new HashSet<String>(); names.add(statuses[0].getPath().getName()); names.add(statuses[1].getPath().getName()); Assert.assertTrue(names.contains("somefile.avro")); Assert.assertTrue(names.contains("someotherfile.txt")); } }