components.xml

<plexus>
	<components>
		<component>
			<role>com.dianping.cat.message.io.InMemoryQueue</role>
			<implementation>com.dianping.cat.message.io.InMemoryQueue</implementation>
		</component>
		<component>
			<role>com.dianping.cat.message.io.MessageSender</role>
			<role-hint>in-memory</role-hint>
			<implementation>com.dianping.cat.message.io.InMemorySender</implementation>
			<requirements>
				<requirement>
					<role>com.dianping.cat.message.io.InMemoryQueue</role>
				</requirement>
			</requirements>
		</component>
		<component>
			<role>com.dianping.cat.message.io.MessageReceiver</role>
			<role-hint>in-memory</role-hint>
			<implementation>com.dianping.cat.message.io.InMemoryReceiver</implementation>
			<requirements>
				<requirement>
					<role>com.dianping.cat.message.io.InMemoryQueue</role>
				</requirement>
			</requirements>
		</component>
		<component>
			<role>com.dianping.cat.message.MessageProducer</role>
			<implementation>com.dianping.cat.message.internal.DefaultMessageProducer</implementation>
		</component>
		<component>
			<role>com.dianping.cat.message.handler.MessageHandler</role>
			<implementation>com.dianping.cat.message.handler.MessageDispatcher</implementation>
			<requirements>
				<requirement>
					<role>com.dianping.cat.message.io.MessageReceiver</role>
					<role-hint>in-memory</role-hint>
				</requirement>
			</requirements>
		</component>
		<component>
			<role>com.dianping.cat.message.broker.MessageBroker</role>
			<role-hint>in-memory</role-hint>
			<implementation>com.dianping.cat.message.broker.DefaultMessageBroker</implementation>
			<requirements>
				<requirement>
					<role>com.dianping.cat.message.io.MessageSender</role>
					<role-hint>in-memory</role-hint>
				</requirement>
				<requirement>
					<role>com.dianping.cat.message.io.MessageReceiver</role>
					<role-hint>in-memory</role-hint>
				</requirement>
			</requirements>
		</component>
	</components>
</plexus>