Examples with Buffer org.jgroups.util.Buffer used on opensource projects

Example 6 with Buffer

use of org.jgroups.util.Buffer in project JGroups by belaban.

the class MessageSizeTest method testMulticast.

/**
 * Tests size of a multicast message.
 * Current record: 84 bytes (March 2010)
 * Prev: 166, 109, 103, 84
 * @throws Exception
 */
public static void testMulticast() throws Exception {
    Address src = Util.createRandomAddress();
    Message msg = createMessage(null, src);
    Buffer buf = marshal(msg);
    System.out.println("buf = " + buf);
    int len = buf.getLength();
    System.out.println("len = " + len);
    assert len <= MCAST_MAX_SIZE;
    if (len < MCAST_MAX_SIZE) {
        double percentage = compute(len, MCAST_MAX_SIZE);
        System.out.printf("multicast message (%d bytes) is %.2f %% smaller than previous max size (%d bytes)\n", len, percentage, MCAST_MAX_SIZE);
    }
}

Example 7 with Buffer

use of org.jgroups.util.Buffer in project JGroups by belaban.

the class MessageSizeTest method testUnicast.

/**
 * Tests size of a unicast message.
 * Current record: 102 (March 2010)
 * Prev: 161, 127, 121, 102
 * @throws Exception
 */
public static void testUnicast() throws Exception {
    Address dest = Util.createRandomAddress();
    Address src = Util.createRandomAddress();
    Message msg = createMessage(dest, src);
    Buffer buf = marshal(msg);
    System.out.println("buf = " + buf);
    int len = buf.getLength();
    System.out.println("len = " + len);
    assert len <= UNICAST_MAX_SIZE;
    if (len < UNICAST_MAX_SIZE) {
        double percentage = compute(len, UNICAST_MAX_SIZE);
        System.out.printf("unicast message (%d bytes) is %.2f %% smaller than previous max size (%d bytes)\n", len, percentage, MCAST_MAX_SIZE);
    }
}

Example 8 with Buffer

use of org.jgroups.util.Buffer in project wildfly by wildfly.

the class CommandResponseMarshaller method objectToBuffer.

@Override
public Buffer objectToBuffer(Object object) throws Exception {
    int version = this.context.getCurrentVersion();
    ByteArrayOutputStream bytes = new ByteArrayOutputStream();
    try (DataOutputStream output = new DataOutputStream(bytes)) {
        IndexExternalizer.VARIABLE.writeData(output, version);
        try (Marshaller marshaller = this.context.createMarshaller(version)) {
            marshaller.start(Marshalling.createByteOutput(output));
            marshaller.writeObject(object);
            marshaller.flush();
        }
    }
    return new Buffer(bytes.toByteArray());
}

Example 9 with Buffer

use of org.jgroups.util.Buffer in project JGroups by belaban.

the class DynamicDiscardTest method testLeaveDuringSend.

public void testLeaveDuringSend() throws Exception {
    final JChannel[] channels = new JChannel[NUM];
    final MessageDispatcher[] dispatchers = new MessageDispatcher[NUM];
    for (int i = 0; i < NUM; i++) {
        channels[i] = new JChannel(new SHARED_LOOPBACK(), new SHARED_LOOPBACK_PING(), new MERGE3(), new FD().setValue("timeout", 1000).setValue("max_tries", 1), new NAKACK2(), new UNICAST3(), new STABLE(), new GMS(), new RSVP().setValue("ack_on_delivery", false).setValue("throw_exception_on_timeout", false));
        channels[i].setName(Character.toString((char) ('A' + i)));
        channels[i].setDiscardOwnMessages(true);
        dispatchers[i] = new MessageDispatcher(channels[i], new MyRequestHandler());
        dispatchers[i].setMembershipListener(new MyMembershipListener(channels[i]));
        channels[i].connect("DynamicDiscardTest");
        System.out.print(i + 1 + " ");
    }
    Util.waitUntilAllChannelsHaveSameView(10000, 1000, channels);
    // discard all messages (except those to self)
    DISCARD discard = new DISCARD().setDiscardAll(true);
    channels[0].getProtocolStack().insertProtocol(discard, ProtocolStack.Position.ABOVE, TP.class);
    // send a RSVP message
    byte[] data = "message2".getBytes();
    Buffer buf = new Buffer(data, 0, data.length);
    RspList<Object> rsps = dispatchers[0].castMessage(null, buf, RequestOptions.SYNC().timeout(5000).flags(Message.Flag.RSVP, Message.Flag.OOB));
    Rsp<Object> objectRsp = rsps.get(channels[1].getAddress());
    assertFalse(objectRsp.wasReceived());
    assertTrue(objectRsp.wasSuspected());
}

Example 10 with Buffer

use of org.jgroups.util.Buffer in project JGroups by belaban.

the class GroupRequestTest method _testMessageReceptionWithViewChange.

private void _testMessageReceptionWithViewChange(boolean async) throws Exception {
    List<Address> new_dests = new ArrayList<>();
    new_dests.add(a);
    new_dests.add(b);
    new_dests.add(a);
    Object[] responses = { new Message(null, (long) 1).src(a), new View(Util.createRandomAddress(), 322649, new_dests), new Message(null, (long) 2).src(b) };
    MyCorrelator corr = new MyCorrelator(async, responses, 0);
    GroupRequest<Long> req = new GroupRequest<>(corr, dests, new RequestOptions(ResponseMode.GET_ALL, 0));
    corr.setGroupRequest(req);
    RspList<Long> results = req.execute(new Buffer(buf, 0, buf.length), true);
    System.out.println("group request is " + req);
    assert req.isDone();
    Assert.assertEquals(2, results.size());
}