Examples with ReadInstruction com.google.api.services.dataflow.model.ReadInstruction used on opensource projects

Example 16 with ReadInstruction

use of com.google.api.services.dataflow.model.ReadInstruction in project beam by apache.

the class MapTaskToNetworkFunctionTest method testPartialGroupByKey.

@Test
public void testPartialGroupByKey() {
    // Read --> PGBK --> Write
    InstructionOutput readOutput = createInstructionOutput("Read.out");
    ParallelInstruction read = createParallelInstruction("Read", readOutput);
    read.setRead(new ReadInstruction());
    PartialGroupByKeyInstruction pgbkInstruction = new PartialGroupByKeyInstruction();
    // Read.out
    pgbkInstruction.setInput(createInstructionInput(0, 0));
    InstructionOutput pgbkOutput = createInstructionOutput("PGBK.out");
    ParallelInstruction pgbk = createParallelInstruction("PGBK", pgbkOutput);
    pgbk.setPartialGroupByKey(pgbkInstruction);
    WriteInstruction writeInstruction = new WriteInstruction();
    // PGBK.out
    writeInstruction.setInput(createInstructionInput(1, 0));
    ParallelInstruction write = createParallelInstruction("Write");
    write.setWrite(writeInstruction);
    MapTask mapTask = new MapTask();
    mapTask.setInstructions(ImmutableList.of(read, pgbk, write));
    mapTask.setFactory(Transport.getJsonFactory());
    Network<Node, Edge> network = new MapTaskToNetworkFunction(IdGenerators.decrementingLongs()).apply(mapTask);
    assertNetworkProperties(network);
    assertEquals(5, network.nodes().size());
    assertEquals(4, network.edges().size());
    ParallelInstructionNode readNode = get(network, read);
    InstructionOutputNode readOutputNode = getOnlySuccessor(network, readNode);
    assertEquals(readOutput, readOutputNode.getInstructionOutput());
    ParallelInstructionNode pgbkNode = getOnlySuccessor(network, readOutputNode);
    InstructionOutputNode pgbkOutputNode = getOnlySuccessor(network, pgbkNode);
    assertEquals(pgbkOutput, pgbkOutputNode.getInstructionOutput());
    getOnlySuccessor(network, pgbkOutputNode);
    assertNotNull(write);
}

Example 17 with ReadInstruction

use of com.google.api.services.dataflow.model.ReadInstruction in project beam by apache.

the class MapTaskToNetworkFunctionTest method testWrite.

@Test
public void testWrite() {
    InstructionOutput readOutput = createInstructionOutput("Read.out");
    ParallelInstruction read = createParallelInstruction("Read", readOutput);
    read.setRead(new ReadInstruction());
    WriteInstruction writeInstruction = new WriteInstruction();
    // Read.out
    writeInstruction.setInput(createInstructionInput(0, 0));
    ParallelInstruction write = createParallelInstruction("Write");
    write.setWrite(writeInstruction);
    MapTask mapTask = new MapTask();
    mapTask.setInstructions(ImmutableList.of(read, write));
    mapTask.setFactory(Transport.getJsonFactory());
    Network<Node, Edge> network = new MapTaskToNetworkFunction(IdGenerators.decrementingLongs()).apply(mapTask);
    assertNetworkProperties(network);
    assertEquals(3, network.nodes().size());
    assertEquals(2, network.edges().size());
    ParallelInstructionNode readNode = get(network, read);
    InstructionOutputNode readOutputNode = getOnlySuccessor(network, readNode);
    assertEquals(readOutput, readOutputNode.getInstructionOutput());
    ParallelInstructionNode writeNode = getOnlySuccessor(network, readOutputNode);
    assertNotNull(writeNode);
}

Example 18 with ReadInstruction

use of com.google.api.services.dataflow.model.ReadInstruction in project beam by apache.

the class LengthPrefixUnknownCodersTest method testLengthPrefixReadInstructionCoder.

@Test
public void testLengthPrefixReadInstructionCoder() throws Exception {
    ReadInstruction readInstruction = new ReadInstruction();
    readInstruction.setSource(new Source().setCodec(CloudObjects.asCloudObject(windowedValueCoder, /*sdkComponents=*/
    null)));
    instruction.setRead(readInstruction);
    ParallelInstruction prefixedInstruction = forParallelInstruction(instruction, false);
    assertEqualsAsJson(CloudObjects.asCloudObject(prefixedWindowedValueCoder, /*sdkComponents=*/
    null), prefixedInstruction.getRead().getSource().getCodec());
    // Should not mutate the instruction.
    assertEqualsAsJson(readInstruction.getSource().getCodec(), CloudObjects.asCloudObject(windowedValueCoder, /*sdkComponents=*/
    null));
}