List of usage examples for io.netty.channel ChannelPromise addListener
@Override
ChannelPromise addListener(GenericFutureListener<? extends Future<? super Void>> listener);
From source file:org.elasticsearch.transport.netty4.Netty4TcpChannel.java
License:Apache License
@Override public void sendMessage(BytesReference reference, ActionListener<Void> listener) { ChannelPromise writePromise = channel.newPromise(); writePromise.addListener(f -> { if (f.isSuccess()) { listener.onResponse(null);//ww w . j av a2 s . c o m } else { final Throwable cause = f.cause(); Netty4Utils.maybeDie(cause); if (cause instanceof Error) { listener.onFailure(new Exception(cause)); } else { listener.onFailure((Exception) cause); } } }); channel.writeAndFlush(Netty4Utils.toByteBuf(reference), writePromise); if (channel.eventLoop().isShutdown()) { listener.onFailure(new TransportException("Cannot send message, event loop is shutting down.")); } }
From source file:org.elasticsearch.transport.netty4.NettyTcpChannel.java
License:Apache License
@Override public void sendMessage(BytesReference reference, ActionListener<Void> listener) { ChannelPromise writePromise = channel.newPromise(); writePromise.addListener(f -> { if (f.isSuccess()) { listener.onResponse(null);//from w w w .ja v a 2 s .c o m } else { final Throwable cause = f.cause(); Netty4Utils.maybeDie(cause); assert cause instanceof Exception; listener.onFailure((Exception) cause); } }); channel.writeAndFlush(Netty4Utils.toByteBuf(reference), writePromise); if (channel.eventLoop().isShutdown()) { listener.onFailure(new TransportException("Cannot send message, event loop is shutting down.")); } }
From source file:org.graylog2.inputs.transports.netty.PromiseFailureHandler.java
License:Open Source License
@Override public void write(ChannelHandlerContext ctx, Object msg, ChannelPromise promise) throws Exception { promise.addListener(Listener.INSTANCE); super.write(ctx, msg, promise); }
From source file:org.jupiter.transport.netty.handler.IdleStateChecker.java
License:Apache License
@Override public void write(ChannelHandlerContext ctx, Object msg, ChannelPromise promise) throws Exception { if (writerIdleTimeMillis > 0 || allIdleTimeMillis > 0) { if (promise.isVoid()) { firstWriterIdleEvent = firstAllIdleEvent = true; lastWriteTime = SystemClock.millisClock().now(); // make hb for firstWriterIdleEvent and firstAllIdleEvent } else {/*from w w w .j av a 2s .co m*/ promise.addListener(writeListener); } } ctx.write(msg, promise); }
From source file:org.lanternpowered.server.network.NetworkSession.java
License:MIT License
/** * Sends a array of {@link Message}s and returns the {@link ChannelFuture}. * * @param messages The messages/* w w w .java 2 s .c o m*/ * @return The channel future */ public ChannelFuture sendWithFuture(Message... messages) { checkNotNull(messages, "messages"); checkArgument(messages.length != 0, "messages cannot be empty"); final ChannelPromise promise = this.channel.newPromise(); if (!this.channel.isActive()) { return promise; } promise.addListener(ChannelFutureListener.FIRE_EXCEPTION_ON_FAILURE); // Don't bother checking if we are in the event loop, // there is only one message. if (messages.length == 1) { this.channel.writeAndFlush(messages[0], promise); } else { final EventLoop eventLoop = this.channel.eventLoop(); final ChannelPromise voidPromise = this.channel.voidPromise(); if (eventLoop.inEventLoop()) { final int last = messages.length - 1; for (int i = 0; i < last; i++) { ReferenceCountUtil.retain(messages[i]); this.channel.writeAndFlush(messages[i], voidPromise); } ReferenceCountUtil.retain(messages[last]); this.channel.writeAndFlush(messages[last], promise); } else { // If there are more then one message, combine them inside the // event loop to reduce overhead of wakeup calls and object creation // Create a copy of the list, to avoid concurrent modifications final List<Message> messages0 = ImmutableList.copyOf(messages); messages0.forEach(ReferenceCountUtil::retain); eventLoop.submit(() -> { final Iterator<Message> it0 = messages0.iterator(); do { final Message message0 = it0.next(); // Only use a normal channel promise for the last message this.channel.writeAndFlush(message0, it0.hasNext() ? voidPromise : promise); } while (it0.hasNext()); }); } } return promise; }
From source file:org.lanternpowered.server.network.NetworkSession.java
License:MIT License
/** * Sends a iterable of {@link Message}s. * * @param messages The messages/*from w w w .j a va 2 s . co m*/ */ public ChannelFuture sendWithFuture(Iterable<Message> messages) { checkNotNull(messages, "messages"); final Iterator<Message> it = messages.iterator(); checkArgument(it.hasNext(), "messages cannot be empty"); final ChannelPromise promise = this.channel.newPromise(); if (!this.channel.isActive()) { return promise; } promise.addListener(ChannelFutureListener.FIRE_EXCEPTION_ON_FAILURE); Message message = it.next(); // Don't bother checking if we are in the event loop, // there is only one message. if (!it.hasNext()) { this.channel.writeAndFlush(message, promise); } else { final EventLoop eventLoop = this.channel.eventLoop(); final ChannelPromise voidPromise = this.channel.voidPromise(); if (eventLoop.inEventLoop()) { while (true) { final boolean next = it.hasNext(); // Only use a normal channel promise for the last message this.channel.writeAndFlush(message, next ? voidPromise : promise); if (!next) { break; } message = it.next(); ReferenceCountUtil.retain(message); } } else { // If there are more then one message, combine them inside the // event loop to reduce overhead of wakeup calls and object creation // Create a copy of the list, to avoid concurrent modifications final List<Message> messages0 = ImmutableList.copyOf(messages); messages0.forEach(ReferenceCountUtil::retain); eventLoop.submit(() -> { final Iterator<Message> it0 = messages0.iterator(); do { final Message message0 = it0.next(); // Only use a normal channel promise for the last message this.channel.writeAndFlush(message0, it0.hasNext() ? voidPromise : promise); } while (it0.hasNext()); }); } } return promise; }
From source file:org.opendaylight.controller.netconf.nettyutil.handler.ssh.SshHandler.java
License:Open Source License
@Override public void connect(final ChannelHandlerContext ctx, SocketAddress remoteAddress, SocketAddress localAddress, ChannelPromise promise) { ctx.connect(remoteAddress, localAddress, promise); promise.addListener(new ChannelFutureListener() { public void operationComplete(ChannelFuture channelFuture) { sshClientAdapter.start(ctx); }/*from w ww . j a va 2s . com*/ }); }
From source file:org.opendaylight.controller.netconf.util.handler.ssh.SshHandler.java
License:Open Source License
@Override public void connect(final ChannelHandlerContext ctx, SocketAddress remoteAddress, SocketAddress localAddress, ChannelPromise promise) throws Exception { ctx.connect(remoteAddress, localAddress, promise); promise.addListener(new ChannelFutureListener() { public void operationComplete(ChannelFuture channelFuture) throws Exception { sshClientAdapter.start(ctx); }//w w w .j a va 2 s. co m }); }
From source file:org.opendaylight.netconf.client.TcpClientChannelInitializer.java
License:Open Source License
@Override public void initialize(final Channel ch, final Promise<NetconfClientSession> promise) { final Future<NetconfClientSession> negotiationFuture = promise; //We have to add this channel outbound handler to channel pipeline, in order //to get notifications from netconf negotiatior. Set connection promise to //success only after successful negotiation. ch.pipeline().addFirst(new ChannelOutboundHandlerAdapter() { ChannelPromise connectPromise;//ww w . j a va 2s .c o m GenericFutureListener<Future<NetconfClientSession>> negotiationFutureListener; @Override public void connect(final ChannelHandlerContext ctx, final SocketAddress remoteAddress, final SocketAddress localAddress, final ChannelPromise channelPromise) throws Exception { connectPromise = channelPromise; ChannelPromise tcpConnectFuture = new DefaultChannelPromise(ch); negotiationFutureListener = new GenericFutureListener<Future<NetconfClientSession>>() { @Override public void operationComplete(final Future<NetconfClientSession> future) throws Exception { if (future.isSuccess()) { connectPromise.setSuccess(); } } }; tcpConnectFuture.addListener(new GenericFutureListener<Future<? super Void>>() { @Override public void operationComplete(final Future<? super Void> future) throws Exception { if (future.isSuccess()) { //complete connection promise with netconf negotiation future negotiationFuture.addListener(negotiationFutureListener); } else { connectPromise.setFailure(future.cause()); } } }); ctx.connect(remoteAddress, localAddress, tcpConnectFuture); } @Override public void disconnect(final ChannelHandlerContext ctx, final ChannelPromise promise) throws Exception { // If we have already succeeded and the session was dropped after, we need to fire inactive to notify reconnect logic if (connectPromise.isSuccess()) { ctx.fireChannelInactive(); } //If connection promise is not already set, it means negotiation failed //we must set connection promise to failure if (!connectPromise.isDone()) { connectPromise.setFailure(new IllegalStateException("Negotiation failed")); } //Remove listener from negotiation future, we don't want notifications //from negotiation anymore negotiationFuture.removeListener(negotiationFutureListener); super.disconnect(ctx, promise); promise.setSuccess(); } }); super.initialize(ch, promise); }
From source file:org.teiid.transport.PgBackendProtocol.java
License:Open Source License
@Override public void sendSslResponse() { SSLEngine engine = null;//from w w w . j av a 2 s. c o m try { if (config != null) { engine = config.getServerSSLEngine(); } } catch (IOException e) { LogManager.logError(LogConstants.CTX_ODBC, e, RuntimePlugin.Util .gs(secureData() ? RuntimePlugin.Event.TEIID40122 : RuntimePlugin.Event.TEIID40016)); } catch (GeneralSecurityException e) { LogManager.logError(LogConstants.CTX_ODBC, e, RuntimePlugin.Util .gs(secureData() ? RuntimePlugin.Event.TEIID40122 : RuntimePlugin.Event.TEIID40016)); } ByteBuf buffer = Unpooled.buffer(1); ChannelPromise promise = this.ctx.newPromise(); if (engine == null) { if (secureData()) { sendErrorResponse(RuntimePlugin.Util.gs(RuntimePlugin.Event.TEIID40124)); return; } buffer.writeByte('N'); } else { promise.addListener(new SSLEnabler(engine)); buffer.writeByte('S'); } this.ctx.writeAndFlush(buffer, promise); }