/*
* Copyright (c) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 David Berkman
*
* This file is part of the SmallMind Code Project.
*
* The SmallMind Code Project is free software, you can redistribute
* it and/or modify it under either, at your discretion...
*
* 1) The terms of GNU Affero General Public License as published by the
* Free Software Foundation, either version 3 of the License, or (at
* your option) any later version.
*
* ...or...
*
* 2) The terms of the Apache License, Version 2.0.
*
* The SmallMind Code Project is distributed in the hope that it will
* be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License or Apache License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* and the Apache License along with the SmallMind Code Project. If not, see
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* Additional permission under the GNU Affero GPL version 3 section 7
* ------------------------------------------------------------------
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package org.smallmind.phalanx.wire.jms;
import java.io.IOException;
import java.util.Map;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicBoolean;
import javax.jms.BytesMessage;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.Queue;
import javax.jms.Topic;
import org.smallmind.instrument.ChronometerInstrumentAndReturn;
import org.smallmind.instrument.InstrumentationManager;
import org.smallmind.instrument.MetricProperty;
import org.smallmind.instrument.config.MetricConfiguration;
import org.smallmind.instrument.config.MetricConfigurationProvider;
import org.smallmind.nutsnbolts.util.SnowflakeId;
import org.smallmind.phalanx.wire.AbstractRequestTransport;
import org.smallmind.phalanx.wire.Address;
import org.smallmind.phalanx.wire.ConversationType;
import org.smallmind.phalanx.wire.InvocationSignal;
import org.smallmind.phalanx.wire.MetricInteraction;
import org.smallmind.phalanx.wire.SignalCodec;
import org.smallmind.phalanx.wire.TransportException;
import org.smallmind.phalanx.wire.VocalMode;
import org.smallmind.phalanx.wire.Voice;
import org.smallmind.phalanx.wire.WireContext;
import org.smallmind.phalanx.wire.WireProperty;
public class JmsRequestTransport extends AbstractRequestTransport implements MetricConfigurationProvider {
private final AtomicBoolean closed = new AtomicBoolean(false);
private final MetricConfiguration metricConfiguration;
private final SignalCodec signalCodec;
private final LinkedBlockingQueue<MessageHandler> talkQueue;
private final LinkedBlockingQueue<MessageHandler> whisperAndShoutQueue;
private final ConnectionManager[] talkRequestConnectionManagers;
private final ConnectionManager[] whisperAndShoutRequestConnectionManagers;
private final ResponseListener[] responseListeners;
private final String callerId = SnowflakeId.newInstance().generateDottedString();
public JmsRequestTransport (MetricConfiguration metricConfiguration, RoutingFactories routingFactories, MessagePolicy messagePolicy, ReconnectionPolicy reconnectionPolicy, SignalCodec signalCodec, int clusterSize, int concurrencyLimit, int maximumMessageLength, int defaultTimeoutSeconds)
throws IOException, JMSException, TransportException {
super(defaultTimeoutSeconds);
int talkIndex = 0;
int whisperIndex = 0;
this.metricConfiguration = metricConfiguration;
this.signalCodec = signalCodec;
talkRequestConnectionManagers = new ConnectionManager[clusterSize];
for (int index = 0; index < talkRequestConnectionManagers.length; index++) {
talkRequestConnectionManagers[index] = new ConnectionManager(routingFactories.getRequestQueueFactory(), messagePolicy, reconnectionPolicy);
}
whisperAndShoutRequestConnectionManagers = new ConnectionManager[clusterSize];
for (int index = 0; index < whisperAndShoutRequestConnectionManagers.length; index++) {
whisperAndShoutRequestConnectionManagers[index] = new ConnectionManager(routingFactories.getRequestTopicFactory(), messagePolicy, reconnectionPolicy);
}
talkQueue = new LinkedBlockingQueue<>();
for (int index = 0; index < Math.max(clusterSize, concurrencyLimit); index++) {
talkQueue.add(new QueueOperator(talkRequestConnectionManagers[talkIndex], (Queue)routingFactories.getRequestQueueFactory().getDestination()));
if (++talkIndex == talkRequestConnectionManagers.length) {
talkIndex = 0;
}
}
whisperAndShoutQueue = new LinkedBlockingQueue<>();
for (int index = 0; index < Math.max(clusterSize, concurrencyLimit); index++) {
whisperAndShoutQueue.add(new TopicOperator(whisperAndShoutRequestConnectionManagers[whisperIndex], (Topic)routingFactories.getRequestTopicFactory().getDestination()));
if (++whisperIndex == whisperAndShoutRequestConnectionManagers.length) {
whisperIndex = 0;
}
}
responseListeners = new ResponseListener[clusterSize];
for (int index = 0; index < responseListeners.length; index++) {
responseListeners[index] = new ResponseListener(this, new ConnectionManager(routingFactories.getResponseTopicFactory(), messagePolicy, reconnectionPolicy), (Topic)routingFactories.getResponseTopicFactory().getDestination(), signalCodec, callerId, maximumMessageLength);
}
}
@Override
public String getCallerId () {
return callerId;
}
@Override
public MetricConfiguration getMetricConfiguration () {
return metricConfiguration;
}
@Override
public Object transmit (Voice voice, Address address, Map<String, Object> arguments, WireContext... contexts)
throws Throwable {
LinkedBlockingQueue<MessageHandler> messageQueue = voice.getMode().equals(VocalMode.TALK) ? talkQueue : whisperAndShoutQueue;
final MessageHandler messageHandler = acquireMessageHandler(messageQueue);
boolean inOnly = voice.getConversation().getConversationType().equals(ConversationType.IN_ONLY);
try {
Message requestMessage;
String messageId;
messageHandler.send(requestMessage = constructMessage(messageHandler, inOnly, (String)voice.getServiceGroup(), voice.getMode().equals(VocalMode.WHISPER) ? (String)voice.getInstanceId() : null, address, arguments, contexts));
messageId = requestMessage.getJMSMessageID();
return InstrumentationManager.execute(new ChronometerInstrumentAndReturn<Object>(this, new MetricProperty("event", MetricInteraction.ACQUIRE_RESULT.getDisplay())) {
@Override
public Object withChronometer ()
throws Throwable {
return acquireResult(signalCodec, address, voice, messageId, inOnly);
}
});
} finally {
messageQueue.put(messageHandler);
}
}
private MessageHandler acquireMessageHandler (final LinkedBlockingQueue<MessageHandler> messageHandlerQueue)
throws Throwable {
return InstrumentationManager.execute(new ChronometerInstrumentAndReturn<MessageHandler>(this, new MetricProperty("event", MetricInteraction.ACQUIRE_REQUEST_TRANSPORT.getDisplay())) {
@Override
public MessageHandler withChronometer ()
throws TransportException, InterruptedException {
MessageHandler messageHandler;
do {
messageHandler = messageHandlerQueue.poll(1, TimeUnit.SECONDS);
} while ((!closed.get()) && (messageHandler == null));
if (messageHandler == null) {
throw new TransportException("Message transmission has been closed");
}
return messageHandler;
}
});
}
private Message constructMessage (final MessageHandler messageHandler, final boolean inOnly, final String serviceGroup, final String instanceId, final Address address, final Map<String, Object> arguments, final WireContext... contexts)
throws Throwable {
return InstrumentationManager.execute(new ChronometerInstrumentAndReturn<Message>(this, new MetricProperty("event", MetricInteraction.CONSTRUCT_MESSAGE.getDisplay())) {
@Override
public Message withChronometer ()
throws Exception {
BytesMessage requestMessage;
requestMessage = messageHandler.createMessage();
requestMessage.writeBytes(signalCodec.encode(new InvocationSignal(inOnly, address, arguments, contexts)));
if (!inOnly) {
requestMessage.setStringProperty(WireProperty.CALLER_ID.getKey(), callerId);
}
requestMessage.setStringProperty(WireProperty.CONTENT_TYPE.getKey(), signalCodec.getContentType());
requestMessage.setLongProperty(WireProperty.CLOCK.getKey(), System.currentTimeMillis());
requestMessage.setStringProperty(WireProperty.SERVICE_GROUP.getKey(), serviceGroup);
if (instanceId != null) {
requestMessage.setStringProperty(WireProperty.INSTANCE_ID.getKey(), instanceId);
}
return requestMessage;
}
});
}
@Override
public void close ()
throws JMSException, InterruptedException {
if (closed.compareAndSet(false, true)) {
for (ConnectionManager requestConnectionManager : whisperAndShoutRequestConnectionManagers) {
requestConnectionManager.stop();
}
for (ConnectionManager requestConnectionManager : talkRequestConnectionManagers) {
requestConnectionManager.stop();
}
for (ConnectionManager requestConnectionManager : whisperAndShoutRequestConnectionManagers) {
requestConnectionManager.close();
}
for (ConnectionManager requestConnectionManager : talkRequestConnectionManagers) {
requestConnectionManager.close();
}
for (ResponseListener responseListener : responseListeners) {
responseListener.close();
}
getCallbackMap().shutdown();
}
}
}