@Override
public void close() throws IOException {
if (closed) {
return;
}
synchronized (lock) {
if (closed) {
return;
}
closed = true;
// Don't allow any new request
channelAssociation.shutdown();
// First close the channel and connection
if (strategy != null) {
StreamUtils.safeClose(strategy);
strategy = null;
}
// Cancel all still active operations
channelAssociation.shutdownNow();
try {
channelAssociation.awaitCompletion(1, TimeUnit.SECONDS);
} catch (InterruptedException ignore) {
Thread.currentThread().interrupt();
}
lock.notifyAll();
}
}
/**
* Create the protocol client to talk to the remote controller.
*
* @param channel the remoting channel
* @return the client
* @throws Exception
*/
TransactionalProtocolClient createClient(final Channel channel) {
channels.add(channel);
final ManagementChannelHandler channelAssociation =
new ManagementChannelHandler(channel, clientExecutor);
final TransactionalProtocolClient client =
TransactionalProtocolHandlers.createClient(channelAssociation);
channel.addCloseHandler(channelAssociation);
channel.receiveMessage(channelAssociation.getReceiver());
return client;
}
@Override
public ProxyController serverCommunicationRegistered(
final String serverProcessName, final ManagementChannelHandler channelAssociation) {
if (shutdown || connectionFinished) {
throw HostControllerMessages.MESSAGES.hostAlreadyShutdown();
}
final String serverName = ManagedServer.getServerName(serverProcessName);
final ManagedServer server = servers.get(serverName);
if (server == null) {
ROOT_LOGGER.noServerAvailable(serverName);
return null;
}
try {
final TransactionalProtocolClient client = server.channelRegistered(channelAssociation);
final Channel channel = channelAssociation.getChannel();
channel.addCloseHandler(
new CloseHandler<Channel>() {
public void handleClose(final Channel closed, final IOException exception) {
final boolean shuttingDown = shutdown || connectionFinished;
// Unregister right away
if (server.callbackUnregistered(client, shuttingDown)) {
domainController.unregisterRunningServer(server.getServerName());
}
}
});
return server.getProxyController();
} catch (IOException e) {
throw new RuntimeException(e);
}
}
@Override
protected ProxyController createProxyController(
final ModelController proxiedController, final PathAddress proxyNodeAddress) {
try {
channels = new RemoteChannelPairSetup();
channels.setupRemoting(
new ManagementChannelInitialization() {
@Override
public ManagementChannelHandler startReceiving(Channel channel) {
final ManagementChannelHandler support =
new ManagementChannelHandler(channel, channels.getExecutorService());
support.addHandlerFactory(
new TransactionalProtocolOperationHandler(proxiedController, support));
channel.addCloseHandler(
new CloseHandler<Channel>() {
@Override
public void handleClose(Channel closed, IOException exception) {
support.shutdownNow();
}
});
channel.receiveMessage(support.getReceiver());
return support;
}
});
channels.startClientConnetion();
} catch (Exception e) {
throw new RuntimeException(e);
}
final Channel clientChannel = channels.getClientChannel();
final ManagementChannelHandler support =
new ManagementChannelHandler(clientChannel, channels.getExecutorService());
final RemoteProxyController proxyController =
RemoteProxyController.create(
support, proxyNodeAddress, ProxyOperationAddressTranslator.SERVER);
clientChannel.addCloseHandler(
new CloseHandler<Channel>() {
@Override
public void handleClose(Channel closed, IOException exception) {
support.shutdownNow();
}
});
clientChannel.receiveMessage(support.getReceiver());
return proxyController;
}
@Override
public void connectionOpened(final Connection connection) throws IOException {
final Channel channel =
openChannel(connection, CHANNEL_SERVICE_TYPE, configuration.getOptionMap());
if (setChannel(channel)) {
channel.receiveMessage(channelHandler.getReceiver());
channel.addCloseHandler(channelHandler);
try {
// Start the registration process
channelHandler.executeRequest(new RegisterHostControllerRequest(), null).getResult().get();
} catch (Exception e) {
if (e.getCause() instanceof IOException) {
throw (IOException) e.getCause();
}
throw new IOException(e);
}
// Registered
registered();
} else {
channel.closeAsync();
}
}
@Override
public Channel.Key startReceiving(final Channel channel) {
final ManagementChannelHandler handler =
new ManagementChannelHandler(
ManagementClientChannelStrategy.create(channel), getExecutor());
// Assemble the request handlers for the domain channel
handler.addHandlerFactory(
new HostControllerRegistrationHandler(handler, getController(), domainController));
handler.addHandlerFactory(new ModelControllerClientOperationHandler(getController(), handler));
handler.addHandlerFactory(new MasterDomainControllerOperationHandlerImpl(domainController));
final Channel.Key key =
channel.addCloseHandler(
new CloseHandler<Channel>() {
@Override
public void handleClose(Channel closed, IOException exception) {
handler.shutdown();
boolean interrupted = false;
try {
if (!handler.awaitCompletion(CHANNEL_SHUTDOWN_TIMEOUT, TimeUnit.MILLISECONDS)) {
ROOT_LOGGER.gracefulManagementChannelHandlerShutdownTimedOut(
CHANNEL_SHUTDOWN_TIMEOUT);
}
} catch (InterruptedException e) {
interrupted = true;
ROOT_LOGGER.serviceShutdownIncomplete(e);
} catch (Exception e) {
ROOT_LOGGER.serviceShutdownIncomplete(e);
} finally {
handler.shutdownNow();
if (interrupted) {
Thread.currentThread().interrupt();
}
}
}
});
channel.receiveMessage(handler.getReceiver());
return key;
}
synchronized TransactionalProtocolClient channelRegistered(
final ManagementChannelHandler channelAssociation) {
final InternalState current = this.internalState;
// Create the remote controller client
channelAssociation
.getAttachments()
.attach(TransactionalProtocolClient.SEND_SUBJECT, Boolean.TRUE);
final TransactionalProtocolClient remoteClient =
TransactionalProtocolHandlers.createClient(channelAssociation);
if (current == InternalState.RELOADING) {
internalSetState(
new TransitionTask() {
@Override
public boolean execute(ManagedServer server) throws Exception {
// Update the current remote connection
protocolClient.connected(remoteClient);
// clear reload required state
requiresReload = false;
return true;
}
},
InternalState.RELOADING,
InternalState.SERVER_STARTING);
} else {
internalSetState(
new TransitionTask() {
@Override
public boolean execute(final ManagedServer server) throws Exception {
// Update the current remote connection
protocolClient.connected(remoteClient);
return true;
}
// TODO we just check that we are in the correct state, perhaps introduce a new state
},
InternalState.SEND_STDIN,
InternalState.SERVER_STARTING);
}
return remoteClient;
}
@Override
public void close() throws IOException {
synchronized (this) {
try {
if (isConnected()) {
try {
channelHandler
.executeRequest(new UnregisterModelControllerRequest(), null)
.getResult()
.await();
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
}
}
} finally {
try {
connectionManager.shutdown();
} finally {
super.close();
}
}
}
}
@Override
public ManagementChannelHandler startReceiving(final Channel channel) {
final ManagementChannelHandler handler =
new ManagementChannelHandler(
ManagementClientChannelStrategy.create(channel), getExecutor());
// Assemble the request handlers for the domain channel
handler.addHandlerFactory(
new HostControllerRegistrationHandler(
handler,
domainController,
operationExecutor,
getExecutor(),
runtimeIgnoreTransformationRegistry));
handler.addHandlerFactory(new ModelControllerClientOperationHandler(getController(), handler));
handler.addHandlerFactory(
new MasterDomainControllerOperationHandlerImpl(domainController, getExecutor()));
handler.addHandlerFactory(pongRequestHandler);
handler.addHandlerFactory(
new DomainTransactionalProtocolOperationHandler(txOperationExecutor, handler));
channel.receiveMessage(handler.getReceiver());
return handler;
}
@Override
public int hashCode() {
return remoteConnectionId == null ? Integer.MIN_VALUE : channelHandler.hashCode();
}