lang/java/mapred/src/test/java/org/apache/avro/mapred/TestAvroInputFormat.java

/**
 * 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"));
  }
}