86 lines
2.4 KiB
HTML
86 lines
2.4 KiB
HTML
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<html>
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<head>
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<link href='./../_highlighter/SyntaxHighlighter.css' rel='stylesheet' type='text/css'/>
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<script language='javascript' src='./../_highlighter/shAll.js'></script>
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</head>
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<body>
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<pre name="code" class="scala" style="width:100%">
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/**
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* Copyright (C) 2009 Scalable Solutions.
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*/
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package se.scalablesolutions.akka.dispatch
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import java.util.List
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import se.scalablesolutions.akka.util.HashCode
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import se.scalablesolutions.akka.stm.Transaction
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import se.scalablesolutions.akka.actor.Actor
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import java.util.concurrent.atomic.AtomicInteger
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trait MessageQueue {
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def append(handle: MessageInvocation)
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def prepend(handle: MessageInvocation)
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}
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trait MessageInvoker {
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def invoke(message: MessageInvocation)
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}
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trait MessageDispatcher {
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def messageQueue: MessageQueue
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def registerHandler(key: AnyRef, handler: MessageInvoker)
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def unregisterHandler(key: AnyRef)
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def start
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def shutdown
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}
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trait MessageDemultiplexer {
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def select
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def acquireSelectedInvocations: List[MessageInvocation]
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def releaseSelectedInvocations
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def wakeUp
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}
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class MessageInvocation(val receiver: Actor,
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val message: AnyRef,
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val future: Option[CompletableFutureResult],
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val tx: Option[Transaction]) {
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if (receiver == null) throw new IllegalArgumentException("receiver is null")
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if (message == null) throw new IllegalArgumentException("message is null")
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private [akka] val nrOfDeliveryAttempts = new AtomicInteger(0)
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def send = synchronized {
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receiver.mailbox.append(this)
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nrOfDeliveryAttempts.incrementAndGet
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}
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override def hashCode(): Int = synchronized {
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var result = HashCode.SEED
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result = HashCode.hash(result, receiver)
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result = HashCode.hash(result, message)
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result
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}
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override def equals(that: Any): Boolean = synchronized {
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that != null &&
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that.isInstanceOf[MessageInvocation] &&
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that.asInstanceOf[MessageInvocation].receiver == receiver &&
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that.asInstanceOf[MessageInvocation].message == message
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}
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override def toString(): String = synchronized {
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"MessageInvocation[message = " + message + ", receiver = " + receiver + ", future = " + future + ", tx = " + tx + "]"
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}
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}
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</pre>
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<script language='javascript'>
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dp.SyntaxHighlighter.ClipboardSwf = './../_highlighter/clipboard.swf';
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dp.SyntaxHighlighter.HighlightAll('code');
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</script>
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</body>
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</html>
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