Examples with FieldReadOperation io.cdap.cdap.etl.api.lineage.field.FieldReadOperation used on opensource projects

Example 6 with FieldReadOperation

use of io.cdap.cdap.etl.api.lineage.field.FieldReadOperation in project cdap by caskdata.

the class LineageOperationProcessorTest method testSameKeyAndRenameJoin.

@Test
public void testSameKeyAndRenameJoin() {
    // n1(id(key), swap1, n1same) ---------
    // |
    // JOIN  ------->(id, new_id, swap1, swap2, n1same, n2same)
    // |
    // n2(id(key), swap2, n2same)----------
    // operations (n1.id, n2.id) -> id
    // (n2.id) -> new_id
    // (n1.swap1) -> swap2
    // (n2.swap2) -> swap1
    // (n1.n1same) -> n1same
    // (n2.n2same) -> n2same
    Set<Connection> connections = new HashSet<>();
    connections.add(new Connection("n1", "n3"));
    connections.add(new Connection("n2", "n3"));
    connections.add(new Connection("n3", "n4"));
    EndPoint src1 = EndPoint.of("default", "n1");
    EndPoint src2 = EndPoint.of("default", "n2");
    EndPoint dest = EndPoint.of("default", "n4");
    Map<String, List<FieldOperation>> stageOperations = new HashMap<>();
    stageOperations.put("n1", Collections.singletonList(new FieldReadOperation("readSrc1", "read description", src1, "id", "swap1", "n1same")));
    stageOperations.put("n2", Collections.singletonList(new FieldReadOperation("readSrc2", "read description", src2, "id", "swap2", "n2same")));
    List<FieldOperation> joinOperations = stageOperations.computeIfAbsent("n3", k -> new ArrayList<>());
    joinOperations.add(new FieldTransformOperation("JoinKey", "Join Key", Arrays.asList("n1.id", "n2.id"), "id"));
    joinOperations.add(new FieldTransformOperation("RenameN2", "rename", Collections.singletonList("n2.id"), "new_id"));
    joinOperations.add(new FieldTransformOperation("swap1", "swap", Collections.singletonList("n1.swap1"), "swap2"));
    joinOperations.add(new FieldTransformOperation("swap2", "swap", Collections.singletonList("n2.swap2"), "swap1"));
    joinOperations.add(new FieldTransformOperation("unchange1", "unchange", Collections.singletonList("n1.n1same"), "n1same"));
    joinOperations.add(new FieldTransformOperation("unchange2", "unchange", Collections.singletonList("n2.n2same"), "n2same"));
    stageOperations.put("n4", Collections.singletonList(new FieldWriteOperation("Write", "write description", dest, "id", "new_id", "swap1", "swap2", "n1same", "n2same")));
    LineageOperationsProcessor processor = new LineageOperationsProcessor(connections, stageOperations, Collections.singleton("n3"));
    Set<Operation> expectedOperations = new HashSet<>();
    expectedOperations.add(new ReadOperation("n1.readSrc1", "read description", src1, "id", "swap1", "n1same"));
    expectedOperations.add(new ReadOperation("n2.readSrc2", "read description", src2, "id", "swap2", "n2same"));
    expectedOperations.add(new TransformOperation("n3.JoinKey", "Join Key", Arrays.asList(InputField.of("n1.readSrc1", "id"), InputField.of("n2.readSrc2", "id")), "id"));
    expectedOperations.add(new TransformOperation("n3.RenameN2", "rename", Collections.singletonList(InputField.of("n2.readSrc2", "id")), "new_id"));
    expectedOperations.add(new TransformOperation("n3.swap1", "swap", Collections.singletonList(InputField.of("n1.readSrc1", "swap1")), "swap2"));
    expectedOperations.add(new TransformOperation("n3.swap2", "swap", Collections.singletonList(InputField.of("n2.readSrc2", "swap2")), "swap1"));
    expectedOperations.add(new TransformOperation("n3.unchange1", "unchange", Collections.singletonList(InputField.of("n1.readSrc1", "n1same")), "n1same"));
    expectedOperations.add(new TransformOperation("n3.unchange2", "unchange", Collections.singletonList(InputField.of("n2.readSrc2", "n2same")), "n2same"));
    expectedOperations.add(new WriteOperation("n4.Write", "write description", dest, Arrays.asList(InputField.of("n3.JoinKey", "id"), InputField.of("n3.RenameN2", "new_id"), InputField.of("n3.swap2", "swap1"), InputField.of("n3.swap1", "swap2"), InputField.of("n3.unchange1", "n1same"), InputField.of("n3.unchange2", "n2same"))));
    Assert.assertEquals(expectedOperations, processor.process());
}

Example 7 with FieldReadOperation

use of io.cdap.cdap.etl.api.lineage.field.FieldReadOperation in project cdap by caskdata.

the class LineageOperationProcessorTest method testSourceWithMultipleDestinations.

@Test
public void testSourceWithMultipleDestinations() {
    // |----->n3
    // n1--->n2-----|
    // |----->n4
    // n1 => read: file -> (offset, body)
    // n2 => parse: body -> (id, name, address, zip)
    // n3 => write1: (parse.id, parse.name) -> info
    // n4 => write2: (parse.address, parse.zip) -> location
    Set<Connection> connections = new HashSet<>();
    connections.add(new Connection("n1", "n2"));
    connections.add(new Connection("n2", "n3"));
    connections.add(new Connection("n3", "n4"));
    EndPoint source = EndPoint.of("ns", "file");
    EndPoint info = EndPoint.of("ns", "info");
    EndPoint location = EndPoint.of("ns", "location");
    Map<String, List<FieldOperation>> stageOperations = new HashMap<>();
    List<FieldOperation> fieldOperations = new ArrayList<>();
    fieldOperations.add(new FieldReadOperation("read", "reading from file", source, "offset", "body"));
    stageOperations.put("n1", fieldOperations);
    fieldOperations = new ArrayList<>();
    fieldOperations.add(new FieldTransformOperation("parse", "parsing body", Collections.singletonList("body"), "id", "name", "address", "zip"));
    stageOperations.put("n2", fieldOperations);
    fieldOperations = new ArrayList<>();
    fieldOperations.add(new FieldWriteOperation("infoWrite", "writing info", info, "id", "name"));
    stageOperations.put("n3", fieldOperations);
    fieldOperations = new ArrayList<>();
    fieldOperations.add(new FieldWriteOperation("locationWrite", "writing location", location, "address", "zip"));
    stageOperations.put("n4", fieldOperations);
    LineageOperationsProcessor processor = new LineageOperationsProcessor(connections, stageOperations, Collections.emptySet());
    Set<Operation> processedOperations = processor.process();
    Set<Operation> expectedOperations = new HashSet<>();
    ReadOperation read = new ReadOperation("n1.read", "reading from file", source, "offset", "body");
    expectedOperations.add(read);
    TransformOperation parse = new TransformOperation("n2.parse", "parsing body", Collections.singletonList(InputField.of("n1.read", "body")), "id", "name", "address", "zip");
    expectedOperations.add(parse);
    WriteOperation infoWrite = new WriteOperation("n3.infoWrite", "writing info", info, InputField.of("n2.parse", "id"), InputField.of("n2.parse", "name"));
    expectedOperations.add(infoWrite);
    WriteOperation locationWrite = new WriteOperation("n4.locationWrite", "writing location", location, InputField.of("n2.parse", "address"), InputField.of("n2.parse", "zip"));
    expectedOperations.add(locationWrite);
    Assert.assertEquals(new FieldLineageInfo(expectedOperations), new FieldLineageInfo(processedOperations));
}

Example 8 with FieldReadOperation

use of io.cdap.cdap.etl.api.lineage.field.FieldReadOperation in project cdap by caskdata.

the class LineageOperationProcessorTest method testSimplePipeline.

@Test
public void testSimplePipeline() {
    // n1-->n2-->n3
    Set<Connection> connections = new HashSet<>();
    connections.add(new Connection("n1", "n2"));
    connections.add(new Connection("n2", "n3"));
    Map<String, List<FieldOperation>> stageOperations = new HashMap<>();
    List<FieldOperation> fieldOperations = new ArrayList<>();
    fieldOperations.add(new FieldReadOperation("read", "reading data", EndPoint.of("default", "file"), "offset", "body"));
    stageOperations.put("n1", fieldOperations);
    fieldOperations = new ArrayList<>();
    fieldOperations.add(new FieldTransformOperation("parse", "parsing data", Collections.singletonList("body"), Arrays.asList("name", "address", "zip")));
    stageOperations.put("n2", fieldOperations);
    fieldOperations = new ArrayList<>();
    fieldOperations.add(new FieldWriteOperation("write", "writing data", EndPoint.of("default", "file2"), "name", "address", "zip"));
    stageOperations.put("n3", fieldOperations);
    LineageOperationsProcessor processor = new LineageOperationsProcessor(connections, stageOperations, Collections.emptySet());
    Set<Operation> processedOperations = processor.process();
    Set<Operation> expected = new HashSet<>();
    expected.add(new ReadOperation("n1.read", "reading data", EndPoint.of("default", "file"), "offset", "body"));
    expected.add(new TransformOperation("n2.parse", "parsing data", Collections.singletonList(InputField.of("n1.read", "body")), "name", "address", "zip"));
    expected.add(new WriteOperation("n3.write", "writing data", EndPoint.of("default", "file2"), InputField.of("n2.parse", "name"), InputField.of("n2.parse", "address"), InputField.of("n2.parse", "zip")));
    Assert.assertEquals(new FieldLineageInfo(expected), new FieldLineageInfo(processedOperations));
}

Example 9 with FieldReadOperation

use of io.cdap.cdap.etl.api.lineage.field.FieldReadOperation in project cdap by caskdata.

the class MockSource method prepareRun.

@Override
public void prepareRun(StreamingSourceContext context) throws Exception {
    Schema schema = Schema.parseJson(conf.schema);
    if (conf.referenceName != null && conf.schema != null) {
        context.registerLineage(conf.referenceName, schema);
        Schema outputSchema = Schema.parseJson(conf.schema);
        if (outputSchema.getFields() != null) {
            outputSchema.getFields().stream().map(Schema.Field::getName).collect(Collectors.toList()).forEach(field -> context.record(Collections.singletonList(new FieldReadOperation("Read " + field, "Read from mock source", EndPoint.of(context.getNamespace(), conf.referenceName), field))));
        }
    }
}

Example 10 with FieldReadOperation

use of io.cdap.cdap.etl.api.lineage.field.FieldReadOperation in project cdap by cdapio.

the class MockSource method prepareRun.

@Override
public void prepareRun(StreamingSourceContext context) throws Exception {
    Schema schema = Schema.parseJson(conf.schema);
    if (conf.referenceName != null && conf.schema != null) {
        context.registerLineage(conf.referenceName, schema);
        Schema outputSchema = Schema.parseJson(conf.schema);
        if (outputSchema.getFields() != null) {
            outputSchema.getFields().stream().map(Schema.Field::getName).collect(Collectors.toList()).forEach(field -> context.record(Collections.singletonList(new FieldReadOperation("Read " + field, "Read from mock source", EndPoint.of(context.getNamespace(), conf.referenceName), field))));
        }
    }
}