Java Code Examples for org.apache.qpid.proton.engine.Session#receiver()

void doOpenLinkBeforeOpenConnectionTestImpl(boolean receiverLink)
{
    MockTransportImpl transport = new MockTransportImpl();
    Connection connection = Proton.connection();
    transport.bind(connection);

    Session session = connection.session();
    session.open();

    Link link = null;
    if(receiverLink)
    {
        link = session.receiver("myReceiver");
    }
    else
    {
        link = session.sender("mySender");
    }
    link.open();

    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 0, transport.writes.size());

    // Now open the connection, expect the Open, Begin, and Attach frames
    connection.open();

    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 3, transport.writes.size());

    assertTrue("Unexpected frame type", transport.writes.get(0) instanceof Open);
    assertTrue("Unexpected frame type", transport.writes.get(1) instanceof Begin);
    assertTrue("Unexpected frame type", transport.writes.get(2) instanceof Attach);
}
 

public Receiver newIncoming(Session ssn, String remote, String local) {
    Receiver rcv = ssn.receiver(String.format("%s-%s", remote, local));
    Source src = new Source();
    src.setAddress(remote);
    rcv.setSource(src);
    Target tgt = new Target();
    tgt.setAddress(remote);
    rcv.setTarget(tgt);
    return rcv;
}
 

@Test
public void testGetTransportWithLinkContext()
{
    Transport transport = Transport.Factory.create();
    Connection connection = Connection.Factory.create();
    transport.bind(connection);

    Session session = connection.session();
    Link link = session.receiver("myReceiver");

    EventImpl event = createEvent(link, Event.Type.LINK_INIT);

    assertNotNull("No transport returned", event.getTransport());
    assertSame("Incorrect transport returned", transport, event.getTransport());
}
 

@Test
public void testReceiverFlowBeforeOpenConnection()
{
    MockTransportImpl transport = new MockTransportImpl();
    Connection connection = Proton.connection();
    transport.bind(connection);

    Session session = connection.session();
    session.open();

    Receiver reciever = session.receiver("myReceiver");
    reciever.flow(5);

    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 0, transport.writes.size());

    // Now open the connection, expect the Open and Begin frames but
    // nothing else as we haven't opened the receiver itself yet.
    connection.open();

    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 2, transport.writes.size());

    assertTrue("Unexpected frame type", transport.writes.get(0) instanceof Open);
    assertTrue("Unexpected frame type", transport.writes.get(1) instanceof Begin);
}
 

@Test
public void testMaxMessageSizeValue() throws Exception
{
    LOGGER.fine(bold("======== About to create transports"));

    Transport clientTransport = Proton.transport();
    getClient().setTransport(clientTransport);
    ProtocolTracerEnabler.setProtocolTracer(clientTransport, TestLoggingHelper.CLIENT_PREFIX);

    Transport serverTransport = Proton.transport();
    getServer().setTransport(serverTransport);
    ProtocolTracerEnabler.setProtocolTracer(serverTransport, "            " + TestLoggingHelper.SERVER_PREFIX);

    doOutputInputCycle();

    Connection clientConnection = Proton.connection();
    getClient().setConnection(clientConnection);
    clientTransport.bind(clientConnection);

    Connection serverConnection = Proton.connection();
    getServer().setConnection(serverConnection);
    serverTransport.bind(serverConnection);

    LOGGER.fine(bold("======== About to open connections"));
    clientConnection.open();
    serverConnection.open();

    doOutputInputCycle();

    LOGGER.fine(bold("======== About to open sessions"));
    Session clientSession = clientConnection.session();
    getClient().setSession(clientSession);
    clientSession.open();

    pumpClientToServer();

    Session serverSession = serverConnection.sessionHead(of(UNINITIALIZED), of(ACTIVE));
    getServer().setSession(serverSession);

    serverSession.open();

    pumpServerToClient();

    LOGGER.fine(bold("======== About to create receiver"));

    Source clientSource = new Source();
    getClient().setSource(clientSource);
    clientSource.setAddress(_sourceAddress);

    Target clientTarget = new Target();
    getClient().setTarget(clientTarget);
    clientTarget.setAddress(null);

    Receiver clientReceiver = clientSession.receiver("link1");
    getClient().setReceiver(clientReceiver);
    clientReceiver.setTarget(clientTarget);
    clientReceiver.setSource(clientSource);

    clientReceiver.setReceiverSettleMode(ReceiverSettleMode.FIRST);
    clientReceiver.setSenderSettleMode(SenderSettleMode.UNSETTLED);

    // Set the local link max-message-size
    assertNull("Expected no value to be set", clientReceiver.getMaxMessageSize());
    clientReceiver.setMaxMessageSize(CLIENT_MAX_MSG_SIZE);
    assertEquals("Expected value to be set", CLIENT_MAX_MSG_SIZE, clientReceiver.getMaxMessageSize());

    clientReceiver.open();
    pumpClientToServer();

    LOGGER.fine(bold("======== About to set up implicitly created sender"));

    Sender serverSender = (Sender) getServer().getConnection().linkHead(of(UNINITIALIZED), of(ACTIVE));
    getServer().setSender(serverSender);

    serverSender.setReceiverSettleMode(serverSender.getRemoteReceiverSettleMode());
    serverSender.setSenderSettleMode(serverSender.getRemoteSenderSettleMode());

    org.apache.qpid.proton.amqp.transport.Source serverRemoteSource = serverSender.getRemoteSource();
    serverSender.setSource(serverRemoteSource);

    assertEquals("Expected value to be set", CLIENT_MAX_MSG_SIZE, serverSender.getRemoteMaxMessageSize());

    // Set the local link max-message-size
    assertNull("Expected no value to be set", serverSender.getMaxMessageSize());
    serverSender.setMaxMessageSize(SERVER_MAX_MSG_SIZE);
    assertEquals("Expected value to be set", SERVER_MAX_MSG_SIZE, serverSender.getMaxMessageSize());

    serverSender.open();

    assertNull("Expected no value to be present yet", clientReceiver.getRemoteMaxMessageSize());

    pumpServerToClient();

    assertEquals("Expected value to be set", SERVER_MAX_MSG_SIZE, clientReceiver.getRemoteMaxMessageSize());
}
 

/**
 * Verify that no Disposition frame is emitted by the Transport should a Delivery
 * have disposition applied after the delivery has been settled previously.
 */
@Test
public void testNoDispositionUpdatesAfterSettlementProceessedSender()
{
    MockTransportImpl transport = new MockTransportImpl();
    Connection connection = Proton.connection();
    transport.bind(connection);

    connection.open();

    Session session = connection.session();
    session.open();

    String linkName = "myReceiver";
    Receiver receiver = session.receiver(linkName);
    receiver.flow(5);
    receiver.open();

    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 4, transport.writes.size());

    assertTrue("Unexpected frame type", transport.writes.get(0) instanceof Open);
    assertTrue("Unexpected frame type", transport.writes.get(1) instanceof Begin);
    assertTrue("Unexpected frame type", transport.writes.get(2) instanceof Attach);
    assertTrue("Unexpected frame type", transport.writes.get(3) instanceof Flow);

    Delivery delivery = receiver.current();
    assertNull("Should not yet have a delivery", delivery);

    // Send the necessary responses to open/begin/attach as well as a transfer
    transport.handleFrame(new TransportFrame(0, new Open(), null));

    Begin begin = new Begin();
    begin.setRemoteChannel(UnsignedShort.valueOf((short) 0));
    begin.setNextOutgoingId(UnsignedInteger.ONE);
    begin.setIncomingWindow(UnsignedInteger.valueOf(1024));
    begin.setOutgoingWindow(UnsignedInteger.valueOf(1024));
    transport.handleFrame(new TransportFrame(0, begin, null));

    Attach attach = new Attach();
    attach.setHandle(UnsignedInteger.ZERO);
    attach.setRole(Role.SENDER);
    attach.setName(linkName);
    attach.setInitialDeliveryCount(UnsignedInteger.ZERO);
    transport.handleFrame(new TransportFrame(0, attach, null));

    String deliveryTag = "tag1";
    String messageContent = "content1";
    handleTransfer(transport, 1, deliveryTag, messageContent);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 4, transport.writes.size());

    delivery = verifyDelivery(receiver, deliveryTag, messageContent);
    assertNotNull("Should now have a delivery", delivery);

    delivery.disposition(Accepted.getInstance());
    delivery.settle();

    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 5, transport.writes.size());
    assertTrue("Unexpected frame type", transport.writes.get(4) instanceof Disposition);

    // Should not produce any new frames being written
    delivery.disposition(Accepted.getInstance());

    connection.close();
    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 6, transport.writes.size());
    assertTrue("Unexpected frame type", transport.writes.get(5) instanceof Close);
}
 

private void doInvalidTransferProvokesDecodeErrorTestImpl(byte[] bytes, String description) {
    MockTransportImpl transport = new MockTransportImpl();
    Connection connection = Proton.connection();

    Collector collector = Collector.Factory.create();
    connection.collect(collector);

    transport.bind(connection);
    connection.open();

    Session session = connection.session();
    session.open();

    String linkName = "myReceiver";
    Receiver receiver = session.receiver(linkName);
    receiver.flow(5);
    receiver.open();

    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 4, transport.writes.size());
    assertTrue("Unexpected frame type", transport.writes.get(0) instanceof Open);
    assertTrue("Unexpected frame type", transport.writes.get(1) instanceof Begin);
    assertTrue("Unexpected frame type", transport.writes.get(2) instanceof Attach);
    assertTrue("Unexpected frame type", transport.writes.get(3) instanceof Flow);

    // Provide the response bytes for the header
    transport.tail().put(AmqpHeader.HEADER);
    transport.process();

    // Send the necessary response to Open/Begin/Attach
    transport.handleFrame(new TransportFrame(0, new Open(), null));

    Begin begin = new Begin();
    begin.setRemoteChannel(UnsignedShort.valueOf((short) 0));
    begin.setNextOutgoingId(UnsignedInteger.ONE);
    begin.setIncomingWindow(UnsignedInteger.valueOf(1024));
    begin.setOutgoingWindow(UnsignedInteger.valueOf(1024));
    transport.handleFrame(new TransportFrame(0, begin, null));

    Attach attach = new Attach();
    attach.setHandle(UnsignedInteger.ZERO);
    attach.setRole(Role.SENDER);
    attach.setName(linkName);
    attach.setInitialDeliveryCount(UnsignedInteger.ZERO);
    transport.handleFrame(new TransportFrame(0, attach, null));

    int capacity = transport.capacity();
    assertTrue("Unexpected transport capacity: " + capacity, capacity > bytes.length);

    transport.tail().put(bytes);
    transport.process();

    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 5, transport.writes.size());
    FrameBody frameBody = transport.writes.get(4);
    assertTrue("Unexpected frame type", frameBody instanceof Close);

    // Expect the close frame generated to contain a decode error condition referencing the missing container-id.
    ErrorCondition expectedCondition = new ErrorCondition();
    expectedCondition.setCondition(AmqpError.DECODE_ERROR);
    expectedCondition.setDescription(description);

    assertEquals("Unexpected condition", expectedCondition, ((Close) frameBody).getError());
}
 

private void doDeliveryIdThresholdsWrapsTestImpl(UnsignedInteger deliveryId1, UnsignedInteger deliveryId2, UnsignedInteger deliveryId3) {
    MockTransportImpl transport = new MockTransportImpl();
    transport.setEmitFlowEventOnSend(false);
    Connection connection = Proton.connection();
    transport.bind(connection);

    connection.open();

    Session session = connection.session();
    session.open();

    String linkName1 = "myReceiver1";
    Receiver receiver1 = session.receiver(linkName1);
    receiver1.flow(5);
    receiver1.open();

    pumpMockTransport(transport);

    final UnsignedInteger r1handle = UnsignedInteger.ZERO;

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 4, transport.writes.size());

    // Give the necessary responses to open/begin/attach
    transport.handleFrame(new TransportFrame(0, new Open(), null));

    Begin begin = new Begin();
    begin.setRemoteChannel(UnsignedShort.valueOf((short) 0));
    begin.setNextOutgoingId(UnsignedInteger.ONE);
    begin.setIncomingWindow(UnsignedInteger.valueOf(1024));
    begin.setOutgoingWindow(UnsignedInteger.valueOf(1024));
    transport.handleFrame(new TransportFrame(0, begin, null));

    Attach attach1 = new Attach();
    attach1.setHandle(r1handle);
    attach1.setRole(Role.SENDER);
    attach1.setName(linkName1);
    attach1.setInitialDeliveryCount(UnsignedInteger.ZERO);
    transport.handleFrame(new TransportFrame(0, attach1, null));

    String deliveryTag1 = "tag1";
    String deliveryTag2 = "tag2";
    String deliveryTag3 = "tag3";

    // Send deliveries with the given delivery-id
    handlePartialTransfer(transport, r1handle, deliveryId1, deliveryTag1, new byte[]{ 1 }, false);
    handlePartialTransfer(transport, r1handle, deliveryId2, deliveryTag2, new byte[]{ 2 }, false);
    handlePartialTransfer(transport, r1handle, deliveryId3, deliveryTag3, new byte[]{ 3 }, false);

    // Verify deliveries arrived with expected payload
    verifyDeliveryRawPayload(receiver1, deliveryTag1, new byte[] { 1 });
    verifyDeliveryRawPayload(receiver1, deliveryTag2, new byte[] { 2 });
    verifyDeliveryRawPayload(receiver1, deliveryTag3, new byte[] { 3 });
}
 

@Test
public void testDeliveryWithIdOmittedOnContinuationTransfers() {
    MockTransportImpl transport = new MockTransportImpl();
    transport.setEmitFlowEventOnSend(false);
    Connection connection = Proton.connection();
    transport.bind(connection);

    connection.open();

    Session session = connection.session();
    session.open();

    String linkName1 = "myReceiver1";
    Receiver receiver1 = session.receiver(linkName1);
    receiver1.flow(5);
    receiver1.open();

    String linkName2 = "myReceiver2";
    Receiver receiver2 = session.receiver(linkName2);
    receiver2.flow(5);
    receiver2.open();

    pumpMockTransport(transport);

    final UnsignedInteger r1handle = UnsignedInteger.ZERO;
    final UnsignedInteger r2handle = UnsignedInteger.ONE;

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 6, transport.writes.size());

    // Give the necessary responses to open/begin/attach
    transport.handleFrame(new TransportFrame(0, new Open(), null));

    Begin begin = new Begin();
    begin.setRemoteChannel(UnsignedShort.valueOf((short) 0));
    begin.setNextOutgoingId(UnsignedInteger.ONE);
    begin.setIncomingWindow(UnsignedInteger.valueOf(1024));
    begin.setOutgoingWindow(UnsignedInteger.valueOf(1024));
    transport.handleFrame(new TransportFrame(0, begin, null));

    Attach attach1 = new Attach();
    attach1.setHandle(r1handle);
    attach1.setRole(Role.SENDER);
    attach1.setName(linkName1);
    attach1.setInitialDeliveryCount(UnsignedInteger.ZERO);
    transport.handleFrame(new TransportFrame(0, attach1, null));

    Attach attach2 = new Attach();
    attach2.setHandle(r2handle);
    attach2.setRole(Role.SENDER);
    attach2.setName(linkName2);
    attach2.setInitialDeliveryCount(UnsignedInteger.ZERO);
    transport.handleFrame(new TransportFrame(0, attach2, null));

    String deliveryTag1 = "tag1";
    String deliveryTag2 = "tag2";

    // Send multi-frame deliveries for each link, multiplexed together, and omit
    // the delivery-id on the continuation frames as allowed for by the spec.
    handlePartialTransfer(transport, r1handle, 1, deliveryTag1, new byte[]{ 1 }, true);
    handlePartialTransfer(transport, r2handle, 2, deliveryTag2, new byte[]{ 101 }, true);
    handlePartialTransfer(transport, r2handle, null, deliveryTag2, new byte[]{ 102 }, true);
    handlePartialTransfer(transport, r1handle, null, deliveryTag1, new byte[]{ 2 }, true);
    handlePartialTransfer(transport, r1handle, null, deliveryTag1, new byte[]{ 3 }, false);
    handlePartialTransfer(transport, r2handle, null, deliveryTag2, new byte[]{ 103 }, true);
    handlePartialTransfer(transport, r2handle, null, deliveryTag2, new byte[]{ 104 }, false);

    // Verify the transfer frames were all matched to compose the expected delivery payload.
    verifyDeliveryRawPayload(receiver1, deliveryTag1, new byte[] { 1, 2, 3 });
    verifyDeliveryRawPayload(receiver2, deliveryTag2, new byte[] { 101, 102, 103, 104 });
}
 

@Test
public void testDeliveryIdTrackingHandlesAbortedDelivery() {
    MockTransportImpl transport = new MockTransportImpl();
    transport.setEmitFlowEventOnSend(false);
    Connection connection = Proton.connection();
    transport.bind(connection);

    connection.open();

    Session session = connection.session();
    session.open();

    String linkName1 = "myReceiver1";
    Receiver receiver1 = session.receiver(linkName1);
    receiver1.flow(5);
    receiver1.open();

    pumpMockTransport(transport);

    final UnsignedInteger r1handle = UnsignedInteger.ZERO;

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 4, transport.writes.size());

    // Give the necessary responses to open/begin/attach
    transport.handleFrame(new TransportFrame(0, new Open(), null));

    Begin begin = new Begin();
    begin.setRemoteChannel(UnsignedShort.valueOf((short) 0));
    begin.setNextOutgoingId(UnsignedInteger.ONE);
    begin.setIncomingWindow(UnsignedInteger.valueOf(1024));
    begin.setOutgoingWindow(UnsignedInteger.valueOf(1024));
    transport.handleFrame(new TransportFrame(0, begin, null));

    Attach attach1 = new Attach();
    attach1.setHandle(r1handle);
    attach1.setRole(Role.SENDER);
    attach1.setName(linkName1);
    attach1.setInitialDeliveryCount(UnsignedInteger.ZERO);
    transport.handleFrame(new TransportFrame(0, attach1, null));

    // Receive first transfer for a multi-frame delivery
    assertEquals("Unexpected queued count", 0, receiver1.getQueued());
    handlePartialTransfer(transport, r1handle, UnsignedInteger.ZERO, "tag1", new byte[]{ 1 }, true);
    assertEquals("Unexpected queued count", 1, receiver1.getQueued());
    // Receive second transfer for a multi-frame delivery, indicating it is aborted
    handlePartialTransfer(transport, r1handle, UnsignedInteger.ZERO, "tag1", new byte[]{ 2 }, true, true);
    assertEquals("Unexpected queued count", 1, receiver1.getQueued());

    // Receive first transfer for ANOTHER delivery, expect it not to fail, since the earlier delivery aborted
    handlePartialTransfer(transport, r1handle, UnsignedInteger.ONE, "tag2", new byte[]{ 3 }, false);
    assertEquals("Unexpected queued count", 2, receiver1.getQueued());

    receiver1.advance();
    verifyDeliveryRawPayload(receiver1, "tag2", new byte[] { 3 });
}
 

@Test
public void testMultiplexDeliveriesOnSameReceiverLinkCausesISE() {
    MockTransportImpl transport = new MockTransportImpl();
    transport.setEmitFlowEventOnSend(false);
    Connection connection = Proton.connection();
    transport.bind(connection);

    connection.open();

    Session session = connection.session();
    session.open();

    String linkName1 = "myReceiver1";
    Receiver receiver1 = session.receiver(linkName1);
    receiver1.flow(5);
    receiver1.open();

    pumpMockTransport(transport);

    final UnsignedInteger r1handle = UnsignedInteger.ZERO;

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 4, transport.writes.size());

    // Give the necessary responses to open/begin/attach
    transport.handleFrame(new TransportFrame(0, new Open(), null));

    Begin begin = new Begin();
    begin.setRemoteChannel(UnsignedShort.valueOf((short) 0));
    begin.setNextOutgoingId(UnsignedInteger.ONE);
    begin.setIncomingWindow(UnsignedInteger.valueOf(1024));
    begin.setOutgoingWindow(UnsignedInteger.valueOf(1024));
    transport.handleFrame(new TransportFrame(0, begin, null));

    Attach attach1 = new Attach();
    attach1.setHandle(r1handle);
    attach1.setRole(Role.SENDER);
    attach1.setName(linkName1);
    attach1.setInitialDeliveryCount(UnsignedInteger.ZERO);
    transport.handleFrame(new TransportFrame(0, attach1, null));

    // Receive first transfer for a multi-frame delivery
    handlePartialTransfer(transport, r1handle, 1, "tag1", new byte[]{ 1 }, true);

    // Receive first transfer for ANOTHER multi-frame delivery, expect it to fail
    // as multiplexing deliveries on a single link is forbidden by the spec.
    try {
        handlePartialTransfer(transport, r1handle, 2, "tag2", new byte[]{ 2 }, true);
        fail("Expected an ISE");
    } catch(IllegalStateException ise) {
        // Expected
        assertEquals("Unexpected message", "Illegal multiplex of deliveries on same link with delivery-id 1 and 2", ise.getMessage());
    }
}
 

@Test
public void testDeliveryIdMissingOnInitialTransferCausesISE() {
    MockTransportImpl transport = new MockTransportImpl();
    transport.setEmitFlowEventOnSend(false);
    Connection connection = Proton.connection();
    transport.bind(connection);

    connection.open();

    Session session = connection.session();
    session.open();

    String linkName1 = "myReceiver1";
    Receiver receiver1 = session.receiver(linkName1);
    receiver1.flow(5);
    receiver1.open();

    pumpMockTransport(transport);

    final UnsignedInteger r1handle = UnsignedInteger.ZERO;

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 4, transport.writes.size());

    // Give the necessary responses to open/begin/attach
    transport.handleFrame(new TransportFrame(0, new Open(), null));

    Begin begin = new Begin();
    begin.setRemoteChannel(UnsignedShort.valueOf((short) 0));
    begin.setNextOutgoingId(UnsignedInteger.ONE);
    begin.setIncomingWindow(UnsignedInteger.valueOf(1024));
    begin.setOutgoingWindow(UnsignedInteger.valueOf(1024));
    transport.handleFrame(new TransportFrame(0, begin, null));

    Attach attach1 = new Attach();
    attach1.setHandle(r1handle);
    attach1.setRole(Role.SENDER);
    attach1.setName(linkName1);
    attach1.setInitialDeliveryCount(UnsignedInteger.ZERO);
    transport.handleFrame(new TransportFrame(0, attach1, null));

    // Receive a delivery without any delivery-id on the [first] transfer frame, expect it to fail.
    try {
        handlePartialTransfer(transport, r1handle, null, "tag1", new byte[]{ 1 }, false);
        fail("Expected an ISE");
    } catch(IllegalStateException ise) {
        // Expected
        assertEquals("Unexpected message", "No delivery-id specified on first Transfer of new delivery", ise.getMessage());
    }
}
 

@Test
public void testDeliveryIdOutOfSequenceCausesISE() {
    MockTransportImpl transport = new MockTransportImpl();
    transport.setEmitFlowEventOnSend(false);
    Connection connection = Proton.connection();
    transport.bind(connection);

    connection.open();

    Session session = connection.session();
    session.open();

    String linkName1 = "myReceiver1";
    Receiver receiver1 = session.receiver(linkName1);
    receiver1.flow(5);
    receiver1.open();

    String linkName2 = "myReceiver2";
    Receiver receiver2 = session.receiver(linkName2);
    receiver2.flow(5);
    receiver2.open();

    pumpMockTransport(transport);

    final UnsignedInteger r1handle = UnsignedInteger.ZERO;
    final UnsignedInteger r2handle = UnsignedInteger.ONE;

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 6, transport.writes.size());

    // Give the necessary responses to open/begin/attach
    transport.handleFrame(new TransportFrame(0, new Open(), null));

    Begin begin = new Begin();
    begin.setRemoteChannel(UnsignedShort.valueOf((short) 0));
    begin.setNextOutgoingId(UnsignedInteger.ONE);
    begin.setIncomingWindow(UnsignedInteger.valueOf(1024));
    begin.setOutgoingWindow(UnsignedInteger.valueOf(1024));
    transport.handleFrame(new TransportFrame(0, begin, null));

    Attach attach1 = new Attach();
    attach1.setHandle(r1handle);
    attach1.setRole(Role.SENDER);
    attach1.setName(linkName1);
    attach1.setInitialDeliveryCount(UnsignedInteger.ZERO);
    transport.handleFrame(new TransportFrame(0, attach1, null));

    Attach attach2 = new Attach();
    attach2.setHandle(r2handle);
    attach2.setRole(Role.SENDER);
    attach2.setName(linkName2);
    attach2.setInitialDeliveryCount(UnsignedInteger.ZERO);
    transport.handleFrame(new TransportFrame(0, attach2, null));

    String deliveryTag1 = "tag1";
    String deliveryTag2 = "tag2";

    handlePartialTransfer(transport, r2handle, 2, deliveryTag2, new byte[]{ 2 }, false);
    try {
        handlePartialTransfer(transport, r1handle, 1, deliveryTag1, new byte[]{ 1 }, false);
        fail("Expected an ISE");
    } catch(IllegalStateException ise) {
        // Expected
        assertTrue("Unexpected exception:" + ise, ise.getMessage().contains("Expected delivery-id 3, got 1"));
    }
}
 

/**
 * Verify that no Disposition frame is emitted by the Transport should a Delivery
 * have disposition applied after the Close frame was sent.
 */
@Test
public void testDispositionAfterCloseSent()
{
    MockTransportImpl transport = new MockTransportImpl();
    Connection connection = Proton.connection();
    transport.bind(connection);

    connection.open();

    Session session = connection.session();
    session.open();

    String linkName = "myReceiver";
    Receiver receiver = session.receiver(linkName);
    receiver.flow(5);
    receiver.open();

    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 4, transport.writes.size());

    assertTrue("Unexpected frame type", transport.writes.get(0) instanceof Open);
    assertTrue("Unexpected frame type", transport.writes.get(1) instanceof Begin);
    assertTrue("Unexpected frame type", transport.writes.get(2) instanceof Attach);
    assertTrue("Unexpected frame type", transport.writes.get(3) instanceof Flow);

    Delivery delivery = receiver.current();
    assertNull("Should not yet have a delivery", delivery);

    // Send the necessary responses to open/begin/attach as well as a transfer
    transport.handleFrame(new TransportFrame(0, new Open(), null));

    Begin begin = new Begin();
    begin.setRemoteChannel(UnsignedShort.valueOf((short) 0));
    begin.setNextOutgoingId(UnsignedInteger.ONE);
    begin.setIncomingWindow(UnsignedInteger.valueOf(1024));
    begin.setOutgoingWindow(UnsignedInteger.valueOf(1024));
    transport.handleFrame(new TransportFrame(0, begin, null));

    Attach attach = new Attach();
    attach.setHandle(UnsignedInteger.ZERO);
    attach.setRole(Role.SENDER);
    attach.setName(linkName);
    attach.setInitialDeliveryCount(UnsignedInteger.ZERO);
    transport.handleFrame(new TransportFrame(0, attach, null));

    String deliveryTag = "tag1";
    String messageContent = "content1";
    handleTransfer(transport, 1, deliveryTag, messageContent);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 4, transport.writes.size());

    delivery = verifyDelivery(receiver, deliveryTag, messageContent);
    assertNotNull("Should now have a delivery", delivery);

    // Cause the Close frame to be sent
    connection.close();
    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 5, transport.writes.size());
    assertTrue("Unexpected frame type", transport.writes.get(4) instanceof Close);

    delivery.disposition(Released.getInstance());
    delivery.settle();

    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 5, transport.writes.size());
}
 

/**
 * Verify that no Flow frame is emitted by the Transport should a Receiver
 * have pending drain when a detach is sent for that receiver.
 */
@Test
public void testNoReceiverFlowAfterDetachSentWhileDraining()
{
    MockTransportImpl transport = new MockTransportImpl();
    Connection connection = Proton.connection();
    transport.bind(connection);

    connection.open();

    Session session = connection.session();
    session.open();

    String linkName = "myReceiver";
    Receiver receiver = session.receiver(linkName);
    receiver.open();

    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 3, transport.writes.size());

    assertTrue("Unexpected frame type", transport.writes.get(0) instanceof Open);
    assertTrue("Unexpected frame type", transport.writes.get(1) instanceof Begin);
    assertTrue("Unexpected frame type", transport.writes.get(2) instanceof Attach);

    // Send the necessary responses to open/begin/attach
    transport.handleFrame(new TransportFrame(0, new Open(), null));

    Begin begin = new Begin();
    begin.setRemoteChannel(UnsignedShort.valueOf((short) 0));
    transport.handleFrame(new TransportFrame(0, begin, null));

    Attach attach = new Attach();
    attach.setHandle(UnsignedInteger.ZERO);
    attach.setRole(Role.RECEIVER);
    attach.setName(linkName);
    attach.setInitialDeliveryCount(UnsignedInteger.ZERO);
    transport.handleFrame(new TransportFrame(0, attach, null));

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 3, transport.writes.size());

    // Start a drain for the Receiver and verify the transport doesn't
    // send any Flow frame, due to the detach being initiated.
    receiver.drain(10);
    pumpMockTransport(transport);

    // Cause the Detach frame to be sent
    receiver.detach();
    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 5, transport.writes.size());
    assertTrue("Unexpected frame type", transport.writes.get(4) instanceof Detach);
}
 

/**
 * Verify that no Flow frame is emitted by the Transport should a Receiver
 * have credit added after the Close frame was sent.
 */
@Test
public void testReceiverFlowAfterCloseSent()
{
    MockTransportImpl transport = new MockTransportImpl();
    Connection connection = Proton.connection();
    transport.bind(connection);

    connection.open();

    Session session = connection.session();
    session.open();

    String linkName = "myReceiver";
    Receiver receiver = session.receiver(linkName);
    receiver.open();

    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 3, transport.writes.size());

    assertTrue("Unexpected frame type", transport.writes.get(0) instanceof Open);
    assertTrue("Unexpected frame type", transport.writes.get(1) instanceof Begin);
    assertTrue("Unexpected frame type", transport.writes.get(2) instanceof Attach);

    // Send the necessary responses to open/begin/attach
    transport.handleFrame(new TransportFrame(0, new Open(), null));

    Begin begin = new Begin();
    begin.setRemoteChannel(UnsignedShort.valueOf((short) 0));
    transport.handleFrame(new TransportFrame(0, begin, null));

    Attach attach = new Attach();
    attach.setHandle(UnsignedInteger.ZERO);
    attach.setRole(Role.RECEIVER);
    attach.setName(linkName);
    attach.setInitialDeliveryCount(UnsignedInteger.ZERO);
    transport.handleFrame(new TransportFrame(0, attach, null));

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 3, transport.writes.size());

    // Cause the Close frame to be sent
    connection.close();
    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 4, transport.writes.size());
    assertTrue("Unexpected frame type", transport.writes.get(3) instanceof Close);

    // Grant new credit for the Receiver and verify the transport doesn't
    // send any Flow frame, as a Close frame was sent already.
    receiver.flow(1);
    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 4, transport.writes.size());
}
 

void doLinkAttachAfterCloseSentTestImpl(boolean receiverLink)
{
    MockTransportImpl transport = new MockTransportImpl();
    Connection connection = Proton.connection();
    transport.bind(connection);

    connection.open();

    Session session = connection.session();
    session.open();

    Link link = null;
    if(receiverLink)
    {
        link = session.receiver("myReceiver");
    }
    else
    {
        link = session.sender("mySender");
    }

    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 2, transport.writes.size());

    assertTrue("Unexpected frame type", transport.writes.get(0) instanceof Open);
    assertTrue("Unexpected frame type", transport.writes.get(1) instanceof Begin);

    // Send the necessary responses to open/begin
    transport.handleFrame(new TransportFrame(0, new Open(), null));

    Begin begin = new Begin();
    begin.setRemoteChannel(UnsignedShort.valueOf((short) 0));
    transport.handleFrame(new TransportFrame(0, begin, null));

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 2, transport.writes.size());

    // Cause a Close frame to be sent
    connection.close();
    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 3, transport.writes.size());
    assertTrue("Unexpected frame type", transport.writes.get(2) instanceof Close);

    // Open the link and verify the transport doesn't
    // send any Attach frame, as a Close frame was sent already.
    link.open();
    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 3, transport.writes.size());
}
 

void doLinkDetachAfterEndSentTestImpl(boolean receiverLink)
{
    MockTransportImpl transport = new MockTransportImpl();
    Connection connection = Proton.connection();
    transport.bind(connection);

    connection.open();

    Session session = connection.session();
    session.open();

    Link link = null;
    if(receiverLink)
    {
        link = session.receiver("myReceiver");
    }
    else
    {
        link = session.sender("mySender");
    }
    link.open();

    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 3, transport.writes.size());

    assertTrue("Unexpected frame type", transport.writes.get(0) instanceof Open);
    assertTrue("Unexpected frame type", transport.writes.get(1) instanceof Begin);
    assertTrue("Unexpected frame type", transport.writes.get(2) instanceof Attach);

    // Send the necessary responses to open/begin
    transport.handleFrame(new TransportFrame(0, new Open(), null));

    Begin begin = new Begin();
    begin.setRemoteChannel(UnsignedShort.valueOf((short) 0));
    transport.handleFrame(new TransportFrame(0, begin, null));

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 3, transport.writes.size());

    // Cause an End frame to be sent
    session.close();
    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 4, transport.writes.size());
    assertTrue("Unexpected frame type", transport.writes.get(3) instanceof End);

    // Close the link and verify the transport doesn't
    // send any Detach frame, as an End frame was sent already.
    link.close();
    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 4, transport.writes.size());
}
 

void doLinkAttachAfterEndSentTestImpl(boolean receiverLink)
{
    MockTransportImpl transport = new MockTransportImpl();
    Connection connection = Proton.connection();
    transport.bind(connection);

    connection.open();

    Session session = connection.session();
    session.open();

    Link link = null;
    if(receiverLink)
    {
        link = session.receiver("myReceiver");
    }
    else
    {
        link = session.sender("mySender");
    }

    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 2, transport.writes.size());

    assertTrue("Unexpected frame type", transport.writes.get(0) instanceof Open);
    assertTrue("Unexpected frame type", transport.writes.get(1) instanceof Begin);

    // Send the necessary responses to open/begin
    transport.handleFrame(new TransportFrame(0, new Open(), null));

    Begin begin = new Begin();
    begin.setRemoteChannel(UnsignedShort.valueOf((short) 0));
    transport.handleFrame(new TransportFrame(0, begin, null));

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 2, transport.writes.size());

    // Cause a End frame to be sent
    session.close();
    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 3, transport.writes.size());
    assertTrue("Unexpected frame type", transport.writes.get(2) instanceof End);

    // Open the link and verify the transport doesn't
    // send any Attach frame, as an End frame was sent already.
    link.open();
    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 3, transport.writes.size());
}
 

void doOpenLinkBeforeOpenSessionTestImpl(boolean receiverLink)
{
    MockTransportImpl transport = new MockTransportImpl();
    Connection connection = Proton.connection();
    transport.bind(connection);

    // Open the connection
    connection.open();

    // Create but don't open the session
    Session session = connection.session();

    // Open the link
    Link link = null;
    if(receiverLink)
    {
        link = session.receiver("myReceiver");
    }
    else
    {
        link = session.sender("mySender");
    }
    link.open();

    pumpMockTransport(transport);

    // Expect only an Open frame, no attach should be sent as the session isn't open
    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 1, transport.writes.size());
    assertTrue("Unexpected frame type", transport.writes.get(0) instanceof Open);

    // Now open the session, expect the Begin
    session.open();

    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 2, transport.writes.size());
    assertTrue("Unexpected frame type", transport.writes.get(0) instanceof Open);
    assertTrue("Unexpected frame type", transport.writes.get(1) instanceof Begin);
    // Note: an Attach wasn't sent because link is no longer 'modified' after earlier pump. It
    // could easily be argued it should, given how the engine generally handles things. Seems
    // unlikely to be of much real world concern.
    //assertTrue("Unexpected frame type", transport.writes.get(2) instanceof Attach);
}