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

Example 11 with Buffer

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

the class GroupRequestTest method _testMessageReceptionWithViewChangeMemberLeft.

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

Example 12 with Buffer

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

the class GroupRequestTest method _testMessageTimeout.

/**
 * test group timeout. demonstrates that the timeout mechanism times out too
 * quickly as multiple responses are received by the GroupRequest.
 * Demonstrates by group request receiving multiple messages in a timeframe
 * less than the total timeout. the request will fail, as after each
 * received message, the request alters the total timeout.
 *
 * @throws Exception
 */
private void _testMessageTimeout(boolean async) throws Exception {
    // need multiple destinations to replicate error
    int destCount = 10;
    // total timeout to hear from all members
    final long timeout = destCount * 1000;
    // how long each destination should delay
    final long delay = 75L;
    Object[] responses = new Message[destCount];
    dests = new ArrayList<>();
    for (int i = 0; i < destCount; i++) {
        Address addr = Util.createRandomAddress();
        dests.add(addr);
        // how long does this simulated destination take to execute? the sum is just less than the total timeout
        responses[i] = new Message(null, (long) i).src(addr);
    }
    MyCorrelator corr = new MyCorrelator(async, responses, delay);
    // instantiate request with dummy correlator
    GroupRequest<Long> req = new GroupRequest<>(corr, dests, new RequestOptions(ResponseMode.GET_ALL, timeout));
    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(dests.size(), results.size());
}

Example 13 with Buffer

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

the class ChannelCommandDispatcher method executeOnGroup.

@Override
public <R> Map<Node, CompletionStage<R>> executeOnGroup(Command<R, ? super CC> command, Node... excludedMembers) throws CommandDispatcherException {
    Set<Node> excluded = (excludedMembers != null) ? new HashSet<>(Arrays.asList(excludedMembers)) : Collections.emptySet();
    Map<Node, CompletionStage<R>> results = new ConcurrentHashMap<>();
    Buffer buffer = this.createBuffer(command);
    for (Node member : this.group.getMembership().getMembers()) {
        if (!excluded.contains(member)) {
            Address address = this.group.getAddress(member);
            if (this.localAddress.equals(address)) {
                results.put(member, this.localDispatcher.executeOnMember(command, member));
            } else {
                try {
                    ServiceRequest<R, MC> request = new ServiceRequest<>(this.dispatcher.getCorrelator(), this.group.getAddress(member), this.options, this.context);
                    CompletionStage<R> future = request.send(buffer);
                    results.put(member, future);
                    future.whenComplete(new PruneCancellationTask<>(results, member));
                } catch (CommandDispatcherException e) {
                    // Cancel previously dispatched messages
                    for (CompletionStage<R> result : results.values()) {
                        result.toCompletableFuture().cancel(true);
                    }
                    throw e;
                }
            }
        }
    }
    return results;
}

Example 14 with Buffer

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

the class ChannelCommandDispatcher method executeOnMember.

@Override
public <R> CompletionStage<R> executeOnMember(Command<R, ? super CC> command, Node member) throws CommandDispatcherException {
    // Bypass MessageDispatcher if target node is local
    Address address = this.group.getAddress(member);
    if (this.localAddress.equals(address)) {
        return this.localDispatcher.executeOnMember(command, member);
    }
    Buffer buffer = this.createBuffer(command);
    ServiceRequest<R, MC> request = new ServiceRequest<>(this.dispatcher.getCorrelator(), this.group.getAddress(member), this.options, this.context);
    return request.send(buffer);
}