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[{Image src='fuji-logo8.gif' link='https://fuji.dev.java.net/' alt='Fuji Home' align='left'}]
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!! How to write a interceptor :
!! How to write an interceptor :
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# Has a single parameter of type com.sun.jbi.framework.osgi.ServiceMessage OR javax.jbi.messaging.MessageExchange OR java.util.Properties. Based on the parameter type the method intercepts : Messages, Message Exchanges or Message Properties.
# Has a single parameter. Based on the parameter type the method intercepts : Messages, Message Exchanges or Message Payloads. For instance if the parameter type is javax.jbi.messaging. MessageExchange then the method intercepts the exchange if the type is java.lang.String and the Message has an Object payload of type java.lang.String then the method intercepts the payload. If the parameter type does not match any of the message exchange content, then the interceptor method will not be invoked.
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@Intercept
@Intercept()
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@Intercept
@Intercept()
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@Intercept
@Intercept()
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@Intercept
@Intercept()
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* A read-only message properties interceptor
{{{
@Intercept
public void myInterceptorMethod(Properties msgProperties)%%
}}}
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public void myInterceptorMethod(Properties msgProperties)
public void myInterceptorMethod(MessageExchange exchange)
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Since there will be many such interceptor methods defined, and one interceptor might need to be called before another. For example a message needs to be decrypted befor validating the signature, in this case a higher priority can be assigned to the decryption interceptor method, by specifying the priority on the Intercept Annotation :
Since there will be many such interceptor methods defined, and one interceptor might need to be called before another. For example a message needs to be decrypted before validating the signature, in this case a higher priority can be assigned to the decryption interceptor method, by specifying the priority on the Intercept Annotation :
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@Intercept (priority="10")
@Intercept (priority="0")
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@Intercept (priority="9")
@Intercept (priority="1")
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The values for priority are in the range [ 0 .. Integer.MAX_VALUE ], with 0 being the highest priority and Integer.MAX_VALUE being the lowest. The default priority if not specified is 100.
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int priority() default 0;
int priority() default 100;
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!Interceptor Wrapper
![ Interceptor Wrapper | http://wiki.open-esb.java.net/attach/FujiInterceptors/InterceptorWrapper.java ]
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This page (revision-18) was last changed on 02-Oct-08 22:23 PM, -0700 by Mark Saunders