Content Comparison

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In the following example, we see both a an XML DSL static and dynamic implementation of our recipient list.

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XML DSL Recipient List Static Example

In this route option, we are routing to a static list of just two different recipients, both of them will receive a copy of the same message simultaneously.

from(<route>
        <from uri="jms:queue:inbox") />
        <multicast>
                .multicast().to(<to uri="file://backup", />
                <to uri="accounting:inbox");/>
        </multicast>
</route>

Note: Camel supports the use of the static Recipient List using the multicast node, and with the dynamic Recipient List we can employ the recipientList node.

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XML DSL Recipient List Dynamic Example

In this route option, we are routing to a dynamic list of recipients defined in the message header (mails) that contains the list of recipients as endpoint URLs. Then, the bean processMails is used to add the header[mails] to the message.

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by performing a method call on a Bean that will provide the list to us dynamically of the recipients.

<route>
        <from uri="jms:queue:inbox" />
        <recipientList>
                <method bean="myDynamicRouter" method="route"/>
        </recipientList>
</route>

<bean id="myDynamicRouter"
        .recipientList("destinations");class="com.mycompany.MyDynamicRouter"/>

Then, in the processMails myDynamicRouter bean, we will use the @Headers annotation we specify a Map object to store route method to return a String object containing all of the recipients for our listpossible destinations.

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public void confirm(@Headers Map headers, @Body String body} {public class myDynamicRouter {
        public String[] route(String body) {
                return new String[] recipients ={ "file://backup", .... }
       headers.put(""destinations", recipients); }
}