samza-hdfs/src/test/java/org/apache/samza/system/hdfs/partitioner/TestHdfsFileSystemAdapter.java

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package org.apache.samza.system.hdfs.partitioner;

import java.net.URL;
import java.util.List;
import java.util.Map;

import org.apache.samza.Partition;
import org.apache.samza.system.SystemStreamMetadata;
import org.junit.Assert;
import org.junit.Test;


public class TestHdfsFileSystemAdapter {

  @Test
  public void testGetAllFiles()
    throws Exception {
    URL url = this.getClass().getResource("/partitioner");
    FileSystemAdapter adapter = new HdfsFileSystemAdapter();
    List<FileSystemAdapter.FileMetadata> result =
      adapter.getAllFiles(url.getPath());
    Assert.assertEquals(3, result.size());
  }

  @Test
  public void testIntegrationWithPartitioner() throws Exception {
    URL url = this.getClass().getResource("/partitioner");
    String whiteList = ".*";
    String blackList = ".*02";
    String groupPattern = "";
    String streamName = String.format(url.getPath());
    DirectoryPartitioner directoryPartitioner =
      new DirectoryPartitioner(whiteList, blackList, groupPattern, new HdfsFileSystemAdapter());
    Map<Partition, SystemStreamMetadata.SystemStreamPartitionMetadata> metadataMap = directoryPartitioner.getPartitionMetadataMap(streamName, null);
    Assert.assertEquals(1, metadataMap.size());
    Map<Partition, List<String>> descriporMap = directoryPartitioner.getPartitionDescriptor(streamName);
    Assert.assertEquals(1, descriporMap.values().size());
    Assert.assertTrue(descriporMap.get(new Partition(0)).get(0).endsWith("testfile01"));
  }
}