How to use

addPartition

method

in

co.cask.cdap.api.dataset.lib.PartitionedFileSet

 @Override
 public void run() {
  pfs.addPartition(KEY_4, path3);
 }
});

 @Override
 public void run() {
  pfs.addPartition(KEY_1, path3);
 }
});

 @Override
 public void run() {
  pfs.addPartition(KEY_3, path3);
  throw new RuntimeException("fail the tx");
 }
});

 @Override
 public void apply() throws Exception {
  Assert.assertTrue(pfsBaseLocation.exists());
  // attempt to write a new partition - should fail
  try {
   pfs.getPartitionOutput(PARTITION_KEY);
   Assert.fail("External partitioned file set should not allow writing files");
  } catch (UnsupportedOperationException e) {
   // expected
  }
  // create an external file and add it as a partition
  File someFile = new File(absolutePath, "some.file");
  OutputStream out = new FileOutputStream(someFile);
  out.close();
  Assert.assertTrue(someFile.exists());
  pfs.addPartition(PARTITION_KEY, "some.file");
  Assert.assertNotNull(pfs.getPartition(PARTITION_KEY));
  Assert.assertTrue(pfs.getPartition(PARTITION_KEY).getLocation().exists());
  // now drop the partition and validate the file is still there
  pfs.dropPartition(PARTITION_KEY);
  Assert.assertNull(pfs.getPartition(PARTITION_KEY));
  Assert.assertTrue(someFile.exists());
 }
});

 writer.write("2,2\n");
pfs.addPartition(KEY_2, path2);

 writer.write("1,x\n");
pfs.get().addPartition(PartitionKey.builder().addStringField("x", "1").build(), "some/path");
pfs.flush();

 pfs.addPartition(
  PartitionKey.builder().addField("i", 1).addField("l", "2").addField("s", "a").build(),
  "some/location");
 pfs.addPartition(
  PartitionKey.builder().addField("i", 1).addField("l", 2L).addField("s", "a").addField("x", "x").build(),
  "some/location", ImmutableMap.of("a", "b"));
pfs.addPartition(
 PartitionKey.builder().addField("i", 1).addField("l", 2L).addField("s", "a").build(),
 "some/location", ImmutableMap.of("a", "b"));