[CONF] Apache Camel > SpringIntegration

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SpringIntegration Page edited by willem jiang Spring Integration Component The spring-integration: component provides a bridge for Camel components to talk to spring integration endpoints. Maven users will need to add the following dependency to their pom.xml for this component: <dependency> <groupId>org.apache.camel</groupId> <artifactId>camel-spring-integration</artifactId> <version>x.x.x</version> <!-- use the same version as your Camel core version --> </dependency> URI format spring-integration:defaultChannelName[?options] Where defaultChannelName represents the default channel name which is used by the Spring Integration Spring context. It will equal to the inputChannel name for the Spring Integration consumer and the outputChannel name for the Spring Integration provider. You can append query options to the URI in the following format, ?option=value&option=value&... Options Name Description Example Required Default Value inputChannel The Spring integration input channel name that this endpoint wants to consume from, where the specified channel name is defined in the Spring context. inputChannel=requestChannel No   outputChannel The Spring integration output channel name that is used to send messages to the Spring integration context. outputChannel=replyChannel No   inOut The exchange pattern that the Spring integration endpoint should use. inOut=true No inOnly for the Spring integration consumer and outOnly for the Spring integration provider consumer.delay Delay in milliseconds between each poll. consumer.delay=60000 No 500 consumer.initialDelay Milliseconds before polling starts. consumer.initialDelay=10000 No 1000 consumer.userFixedDelay Specify true to use fixed delay between polls, otherwise fixed rate is used. See the JavaScheduledExecutorService class for details. consumer.userFixedDelay=false No false Usage The Spring integration component is a bridge that connects Camel endpoints with Spring integration endpoints through the Spring integration's input channels and output channels. Using this component, we can send Camel messages to Spring Integration endpoints or receive messages from Spring integration endpoints in a Camel routing context. Examples Using the Spring integration endpoint You can set up a Spring integration endpoint using a URI, as follows: <beans:beans xmlns="http://www.springframework.org/schema/integration" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:beans="http://www.springframework.org/schema/beans" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd http://www.springframework.org/schema/integration http://www.springframework.org/schema/integration/spring-integration-1.0.xsd http://camel.apache.org/schema/spring http://camel.apache.org/schema/spring/camel-spring.xsd"> <channel id="inputChannel"/> <channel id="outputChannel"/> <channel id="onewayChannel"/> <service-activator input-channel="inputChannel" ref="helloService" method="sayHello"/> <service-activator input-channel="onewayChannel" ref="helloService" method="greet"/> <beans:bean id="helloService" class="org.apache.camel.component.spring.integration.HelloWorldService"/> <camelContext id="camel" xmlns="http://camel.apache.org/schema/spring"> <route> <from uri="direct:twowayMessage"/> <!-- Using the &amp; as the separator of & --> <to uri="spring-integration:inputChannel?inOut=true&amp;inputChannel=outputChannel"/> </route> <route> <from uri="direct:onewayMessage"/> <to uri="spring-integration:onewayChannel?inOut=false"/> </route> </camelContext> <channel id="requestChannel"/> <channel id="responseChannel"/> <beans:bean id="myProcessor" class="org.apache.camel.component.spring.integration.MyProcessor"/> <camelContext id="camel" xmlns="http://camel.apache.org/schema/spring"> <route> <!-- Using the &amp; as the separator of & --> <from uri="spring-integration://requestChannel?outputChannel=responseChannel&amp;inOut=true"/> <process ref="myProcessor"/> </route> </camelContext> Or directly using a Spring integration channel name: <beans:beans xmlns="http://www.springframework.org/schema/integration" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:beans="http://www.springframework.org/schema/beans" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd http://www.springframework.org/schema/integration http://www.springframework.org/schema/integration/spring-integration-1.0.xsd http://camel.apache.org/schema/spring http://camel.apache.org/schema/spring/camel-spring.xsd"> <channel id="outputChannel"/> <camelContext id="camel" xmlns="http://camel.apache.org/schema/spring"> <route> <!-- camel will create a spring integration endpoint automatically --> <from uri="outputChannel"/> <to uri="mock:result"/> </route> </camelContext> The Source and Target adapter Spring integration also provides the Spring integration's source and target adapters, which can route messages from a Spring integration channel to a Camel endpoint or from a Camel endpoint to a Spring integration channel. This example uses the following namespaces: <beans:beans xmlns="http://www.springframework.org/schema/integration" xmlns:beans="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:camel-si="http://camel.apache.org/schema/spring/integration" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd http://www.springframework.org/schema/integration http://www.springframework.org/schema/integration/spring-integration-1.0.xsd http://camel.apache.org/schema/spring/integration http://camel.apache.org/schema/spring/integration/camel-spring-integration.xsd http://camel.apache.org/schema/spring http://camel.apache.org/schema/spring/camel-spring.xsd "> You can bind your source or target to a Camel endpoint as follows: <!-- Create the camel context here --> <camelContext id="camelTargetContext" xmlns="http://camel.apache.org/schema/spring"> <route> <from uri="direct:EndpointA" /> <to uri="mock:result" /> </route> <route> <from uri="direct:EndpointC"/> <process ref="myProcessor"/> </route> </camelContext> <!-- We can bind the camelTarget to the camel context's endpoint by specifying the camelEndpointUri attribute --> <camel-si:camelTarget id="camelTargetA" camelEndpointUri="direct:EndpointA" expectReply="false"> <camel-si:camelContextRef>camelTargetContext</camel-si:camelContextRef> </camel-si:camelTarget> <camel-si:camelTarget id="camelTargetB" camelEndpointUri="direct:EndpointC" replyChannel="channelC" expectReply="true"> <camel-si:camelContextRef>camelTargetContext</camel-si:camelContextRef> </camel-si:camelTarget> <camel-si:camelTarget id="camelTargetD" camelEndpointUri="direct:EndpointC" expectReply="true"> <camel-si:camelContextRef>camelTargetContext</camel-si:camelContextRef> </camel-si:camelTarget> <beans:bean id="myProcessor" class="org.apache.camel.component.spring.integration.MyProcessor"/> <camelContext id="camelSourceContext" xmlns="http://camel.apache.org/schema/spring"> <route> <from uri="direct:OneWay"/> <to uri="direct:EndpointB" /> </route> <route> <from uri="direct:TwoWay"/> <to uri="direct:EndpointC" /> </route> </camelContext> <!-- camelSource will redirect the message coming for direct:EndpointB to the spring requestChannel channelA --> <camel-si:camelSource id="camelSourceA" camelEndpointUri="direct:EndpointB" requestChannel="channelA" expectReply="false"> <camel-si:camelContextRef>camelSourceContext</camel-si:camelContextRef> </camel-si:camelSource> <!-- camelSource will redirect the message coming for direct:EndpointC to the spring requestChannel channelB then it will pull the response from channelC and put the response message back to direct:EndpointC --> <camel-si:camelSource id="camelSourceB" camelEndpointUri="direct:EndpointC" requestChannel="channelB" replyChannel="channelC" expectReply="true"> <camel-si:camelContextRef>camelSourceContext</camel-si:camelContextRef> </camel-si:camelSource> See Also Configuring Camel Component Endpoint Getting Started Change Notification Preferences View Online | View Change | Add Comment