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package org.mule.transport.vm; |
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import org.mule.DefaultMuleMessage; |
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import org.mule.api.DefaultMuleException; |
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import org.mule.api.MuleEvent; |
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import org.mule.api.MuleException; |
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import org.mule.api.MuleMessage; |
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import org.mule.api.construct.FlowConstruct; |
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import org.mule.api.endpoint.InboundEndpoint; |
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import org.mule.api.lifecycle.CreateException; |
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import org.mule.api.transport.Connector; |
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import org.mule.api.transport.PropertyScope; |
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import org.mule.transport.PollingReceiverWorker; |
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import org.mule.transport.TransactedPollingMessageReceiver; |
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import org.mule.util.queue.Queue; |
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import org.mule.util.queue.QueueSession; |
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import java.util.ArrayList; |
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import java.util.HashMap; |
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import java.util.LinkedList; |
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import java.util.List; |
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import java.util.Map; |
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import javax.activation.DataHandler; |
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import edu.emory.mathcs.backport.java.util.concurrent.RejectedExecutionException; |
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public class VMMessageReceiver extends TransactedPollingMessageReceiver |
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{ |
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private VMConnector connector; |
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public VMMessageReceiver(Connector connector, FlowConstruct flowConstruct, InboundEndpoint endpoint) |
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throws CreateException |
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{ |
50 | 0 | super(connector, flowConstruct, endpoint); |
51 | 0 | this.setReceiveMessagesInTransaction(endpoint.getTransactionConfig().isTransacted()); |
52 | 0 | this.connector = (VMConnector) connector; |
53 | 0 | } |
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@Override |
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protected void schedule() throws RejectedExecutionException, NullPointerException, IllegalArgumentException |
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{ |
62 | 0 | if (!endpoint.getExchangePattern().hasResponse()) |
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{ |
64 | 0 | super.schedule(); |
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} |
66 | 0 | } |
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@Override |
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protected void doDispose() |
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{ |
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72 | 0 | } |
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@Override |
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protected void doConnect() throws Exception |
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{ |
77 | 0 | if (!endpoint.getExchangePattern().hasResponse()) |
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{ |
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|
80 | 0 | QueueSession queueSession = connector.getQueueSession(); |
81 | 0 | Queue q = queueSession.getQueue(endpoint.getEndpointURI().getAddress()); |
82 | 0 | if (logger.isDebugEnabled()) |
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{ |
84 | 0 | logger.debug("Current queue depth for queue: " + endpoint.getEndpointURI().getAddress() + " is: " |
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+ q.size()); |
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} |
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} |
88 | 0 | } |
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@Override |
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protected void doDisconnect() throws Exception |
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{ |
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94 | 0 | } |
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public void onMessage(MuleMessage message) throws MuleException |
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{ |
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99 | 0 | MuleMessage newMessage = new DefaultMuleMessage(message.getPayload(), message, connector.getMuleContext()); |
100 | 0 | routeMessage(newMessage); |
101 | 0 | } |
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public MuleMessage onCall(MuleMessage message, boolean synchronous) throws MuleException |
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{ |
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try |
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{ |
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|
108 | 0 | MuleMessage newMessage = message.createInboundMessage(); |
109 | 0 | MuleEvent event = routeMessage(newMessage); |
110 | 0 | MuleMessage returnedMessage = event == null ? null : event.getMessage(); |
111 | 0 | if (returnedMessage != null) |
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{ |
113 | 0 | returnedMessage = returnedMessage.createInboundMessage(); |
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} |
115 | 0 | return returnedMessage; |
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} |
117 | 0 | catch (Exception e) |
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{ |
119 | 0 | throw new DefaultMuleException(e); |
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} |
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} |
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@Override |
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protected List<MuleMessage> getMessages() throws Exception |
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{ |
129 | 0 | if (isReceiveMessagesInTransaction()) |
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{ |
131 | 0 | MuleEvent message = getFirstMessage(); |
132 | 0 | if (message == null) |
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{ |
134 | 0 | return null; |
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} |
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|
137 | 0 | List<MuleMessage> messages = new ArrayList<MuleMessage>(1); |
138 | 0 | messages.add(message.getMessage()); |
139 | 0 | return messages; |
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} |
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else |
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{ |
143 | 0 | return getFirstMessages(); |
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} |
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} |
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protected List<MuleMessage> getFirstMessages() throws Exception |
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{ |
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|
150 | 0 | QueueSession qs = connector.getQueueSession(); |
151 | 0 | Queue queue = qs.getQueue(endpoint.getEndpointURI().getAddress()); |
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154 | 0 | List<MuleMessage> messages = new LinkedList<MuleMessage>(); |
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162 | 0 | int maxThreads = connector.getReceiverThreadingProfile().getMaxThreadsActive(); |
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164 | 0 | int batchSize = Math.max(1, Math.min(queue.size(), ((maxThreads / 2) - 1))); |
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167 | 0 | MuleEvent message = (MuleEvent) queue.poll(connector.getQueueTimeout()); |
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|
169 | 0 | if (message != null) |
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{ |
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|
172 | 0 | messages.add(message.getMessage()); |
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|
175 | 0 | for (int i = 0; i < batchSize && message != null; i++) |
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{ |
177 | 0 | message = (MuleEvent)queue.poll(0); |
178 | 0 | if (message != null) |
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{ |
180 | 0 | messages.add(message.getMessage()); |
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} |
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} |
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} |
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|
186 | 0 | return messages; |
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} |
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protected MuleEvent getFirstMessage() throws Exception |
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{ |
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|
192 | 0 | QueueSession qs = connector.getQueueSession(); |
193 | 0 | Queue queue = qs.getQueue(endpoint.getEndpointURI().getAddress()); |
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|
195 | 0 | return (MuleEvent) queue.poll(connector.getQueueTimeout()); |
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} |
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@Override |
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protected void processMessage(Object msg) throws Exception |
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{ |
201 | 0 | MuleMessage message = (MuleMessage) msg; |
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|
204 | 0 | MuleMessage newMessage = message.createInboundMessage(); |
205 | 0 | routeMessage(newMessage); |
206 | 0 | } |
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@Override |
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protected PollingReceiverWorker createWork() |
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{ |
214 | 0 | return new VMReceiverWorker(this); |
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} |
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protected static class VMReceiverWorker extends PollingReceiverWorker |
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{ |
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public VMReceiverWorker(VMMessageReceiver pollingMessageReceiver) |
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{ |
227 | 0 | super(pollingMessageReceiver); |
228 | 0 | } |
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@Override |
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public void run() |
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{ |
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|
238 | 0 | while (this.getReceiver().isConnected()) |
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{ |
240 | 0 | super.run(); |
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} |
242 | 0 | } |
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} |
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} |