@Before
@SuppressWarnings("unchecked")
public void setUp() throws IOException {
String inputFile1 = tmpDir.copyResourceFileName("set1.txt");
String inputFile2 = tmpDir.copyResourceFileName("set2.txt");
if (pipelineClass == null) {
pipeline = MemPipeline.getInstance();
} else {
pipeline = new MRPipeline(pipelineClass, tmpDir.getDefaultConfiguration());
}
PCollection<String> firstCollection =
pipeline.read(At.textFile(inputFile1, typeFamily.strings()));
PCollection<String> secondCollection =
pipeline.read(At.textFile(inputFile2, typeFamily.strings()));
LOG.info(
"Test fixture: ["
+ pipeline.getClass().getSimpleName()
+ " : "
+ typeFamily.getClass().getSimpleName()
+ "] First: "
+ Lists.newArrayList(firstCollection.materialize().iterator())
+ ", Second: "
+ Lists.newArrayList(secondCollection.materialize().iterator()));
union = secondCollection.union(firstCollection);
}
private void checkFileContents(String filePath) throws IOException {
List<String> fileContentValues =
(typeFamily != AvroTypeFamily.getInstance())
? Lists.newArrayList(
pipeline.read(At.textFile(filePath, typeFamily.strings())).materialize().iterator())
: Lists.newArrayList(
pipeline.read(At.avroFile(filePath, Avros.strings())).materialize().iterator());
Collections.sort(fileContentValues);
LOG.info("Saved Union: " + fileContentValues);
assertEquals(EXPECTED, fileContentValues);
}
@Test
public void testSignalReadyOutputView() {
Assume.assumeTrue(!Hadoop.isHadoop1());
Dataset<Record> inputDataset =
repo.create("ns", "in", new DatasetDescriptor.Builder().schema(USER_SCHEMA).build());
Dataset<Record> outputDataset =
repo.create("ns", "out", new DatasetDescriptor.Builder().schema(USER_SCHEMA).build());
writeTestUsers(inputDataset, 10);
View<Record> inputView = inputDataset.with("username", "test-8", "test-9");
View<Record> outputView = outputDataset.with("username", "test-8", "test-9");
Assert.assertEquals(2, datasetSize(inputView));
Pipeline pipeline = new MRPipeline(TestCrunchDatasets.class);
PCollection<GenericData.Record> data = pipeline.read(CrunchDatasets.asSource(inputView));
pipeline.write(data, CrunchDatasets.asTarget(outputView), Target.WriteMode.APPEND);
pipeline.run();
Assert.assertEquals(2, datasetSize(outputView));
Assert.assertFalse(
"Output dataset should not be signaled ready", ((Signalable) outputDataset).isReady());
Assert.assertTrue("Output view should be signaled ready", ((Signalable) outputView).isReady());
}
@Test
public void testTargetView() throws IOException {
PartitionStrategy partitionStrategy =
new PartitionStrategy.Builder().hash("username", 2).build();
Dataset<Record> inputDataset =
repo.create(
"ns",
"in",
new DatasetDescriptor.Builder()
.schema(USER_SCHEMA)
.partitionStrategy(partitionStrategy)
.build());
Dataset<Record> outputDataset =
repo.create(
"ns",
"out",
new DatasetDescriptor.Builder()
.schema(USER_SCHEMA)
.partitionStrategy(partitionStrategy)
.build());
writeTestUsers(inputDataset, 10);
View<Record> inputView = inputDataset.with("username", "test-0");
Assert.assertEquals(1, datasetSize(inputView));
View<Record> outputView = outputDataset.with("username", "test-0");
Pipeline pipeline = new MRPipeline(TestCrunchDatasets.class);
PCollection<GenericData.Record> data = pipeline.read(CrunchDatasets.asSource(inputView));
pipeline.write(data, CrunchDatasets.asTarget(outputView), Target.WriteMode.APPEND);
pipeline.run();
Assert.assertEquals(1, datasetSize(outputDataset));
}
@Test
public void testPartitionedSource() throws IOException {
PartitionStrategy partitionStrategy =
new PartitionStrategy.Builder().hash("username", 2).build();
Dataset<Record> inputDataset =
repo.create(
"ns",
"in",
new DatasetDescriptor.Builder()
.schema(USER_SCHEMA)
.partitionStrategy(partitionStrategy)
.build());
Dataset<Record> outputDataset =
repo.create(
"ns",
"out",
new DatasetDescriptor.Builder().schema(USER_SCHEMA).format(Formats.PARQUET).build());
writeTestUsers(inputDataset, 10);
PartitionKey key = new PartitionKey(0);
Dataset<Record> inputPart0 =
((PartitionedDataset<Record>) inputDataset).getPartition(key, false);
Pipeline pipeline = new MRPipeline(TestCrunchDatasets.class);
PCollection<GenericData.Record> data = pipeline.read(CrunchDatasets.asSource(inputPart0));
pipeline.write(data, CrunchDatasets.asTarget(outputDataset), Target.WriteMode.APPEND);
pipeline.run();
Assert.assertEquals(5, datasetSize(outputDataset));
}
@Before
public void setUp() throws IOException {
String set1InputPath = FileHelper.createTempCopyOf("set1.txt");
String set2InputPath = FileHelper.createTempCopyOf("set2.txt");
pipeline = new MRPipeline(SetTest.class);
set1 = pipeline.read(At.textFile(set1InputPath, typeFamily.strings()));
set2 = pipeline.read(At.textFile(set2InputPath, typeFamily.strings()));
}
@Test
public void testUseReaderSchema() throws IOException {
// Create a schema with only a username, so we can test reading it
// with an enhanced record structure.
Schema oldRecordSchema =
SchemaBuilder.record("org.kitesdk.data.user.OldUserRecord")
.fields()
.requiredString("username")
.endRecord();
// create the dataset
Dataset<Record> in =
repo.create("ns", "in", new DatasetDescriptor.Builder().schema(oldRecordSchema).build());
Dataset<Record> out =
repo.create("ns", "out", new DatasetDescriptor.Builder().schema(oldRecordSchema).build());
Record oldUser = new Record(oldRecordSchema);
oldUser.put("username", "user");
DatasetWriter<Record> writer = in.newWriter();
try {
writer.write(oldUser);
} finally {
writer.close();
}
Pipeline pipeline = new MRPipeline(TestCrunchDatasets.class);
// read data from updated dataset that has the new schema.
// At this point, User class has the old schema
PCollection<NewUserRecord> data =
pipeline.read(CrunchDatasets.asSource(in.getUri(), NewUserRecord.class));
PCollection<NewUserRecord> processed =
data.parallelDo(new UserRecordIdentityFn(), Avros.records(NewUserRecord.class));
pipeline.write(processed, CrunchDatasets.asTarget(out));
DatasetReader reader = out.newReader();
Assert.assertTrue("Pipeline failed.", pipeline.run().succeeded());
try {
// there should be one record that is equal to our old user generic record.
Assert.assertEquals(oldUser, reader.next());
Assert.assertFalse(reader.hasNext());
} finally {
reader.close();
}
}
@Test(expected = CrunchRuntimeException.class)
public void testWriteModeDefaultFailsWithExisting() throws IOException {
Dataset<Record> inputDataset =
repo.create("ns", "in", new DatasetDescriptor.Builder().schema(USER_SCHEMA).build());
Dataset<Record> outputDataset =
repo.create("ns", "out", new DatasetDescriptor.Builder().schema(USER_SCHEMA).build());
writeTestUsers(inputDataset, 1, 0);
writeTestUsers(outputDataset, 1, 0);
Pipeline pipeline = new MRPipeline(TestCrunchDatasets.class);
PCollection<GenericData.Record> data = pipeline.read(CrunchDatasets.asSource(inputDataset));
pipeline.write(data, CrunchDatasets.asTarget((View<Record>) outputDataset));
}
@Test
public void testGeneric() throws IOException {
Dataset<Record> inputDataset =
repo.create("ns", "in", new DatasetDescriptor.Builder().schema(USER_SCHEMA).build());
Dataset<Record> outputDataset =
repo.create("ns", "out", new DatasetDescriptor.Builder().schema(USER_SCHEMA).build());
// write two files, each of 5 records
writeTestUsers(inputDataset, 5, 0);
writeTestUsers(inputDataset, 5, 5);
Pipeline pipeline = new MRPipeline(TestCrunchDatasets.class);
PCollection<GenericData.Record> data = pipeline.read(CrunchDatasets.asSource(inputDataset));
pipeline.write(data, CrunchDatasets.asTarget(outputDataset), Target.WriteMode.APPEND);
pipeline.run();
checkTestUsers(outputDataset, 10);
}
@Test
public void testWriteModeOverwrite() throws IOException {
Dataset<Record> inputDataset =
repo.create("ns", "in", new DatasetDescriptor.Builder().schema(USER_SCHEMA).build());
Dataset<Record> outputDataset =
repo.create("ns", "out", new DatasetDescriptor.Builder().schema(USER_SCHEMA).build());
writeTestUsers(inputDataset, 1, 0);
writeTestUsers(outputDataset, 1, 1);
Pipeline pipeline = new MRPipeline(TestCrunchDatasets.class);
PCollection<GenericData.Record> data = pipeline.read(CrunchDatasets.asSource(inputDataset));
pipeline.write(
data, CrunchDatasets.asTarget((View<Record>) outputDataset), Target.WriteMode.OVERWRITE);
pipeline.run();
checkTestUsers(outputDataset, 1);
}
private void runCheckpointPipeline(View<Record> inputView, View<Record> outputView) {
Pipeline pipeline = new MRPipeline(TestCrunchDatasets.class);
PCollection<GenericData.Record> data = pipeline.read(CrunchDatasets.asSource(inputView));
pipeline.write(data, CrunchDatasets.asTarget(outputView), Target.WriteMode.CHECKPOINT);
pipeline.done();
}