CODEWITHSUNDEEP
javamulemule-studio
user1493140
user1493140

Reputation: 6186

Invoking method on java payload using MEL

I am trying to invoke a method (getSubject()) on java payload using MEL. However I am getting exception unable to resolve method: java.lang.String.getSubject() [arglength=0]]. Apparently it is assuming the payload is of type String where as it is of type NotifyVO as shown in the log statement below.

INFO 2013-10-31 15:15:11,382 [[test].sendEmail.stage1.02] org.mule.api.processor.LoggerMessageProcessor: payload : class com.test.NotifyVO

The flow is --

    <flow name="sendEmail" doc:name="sendEmail">
    <vm:inbound-endpoint exchange-pattern="one-way"
        path="send-email-vm" doc:name="VM" />
    <logger level="INFO" doc:name="Logger" message="payload : #[payload.getClass()]"/>
    <smtp:outbound-endpoint connector-ref="smtpGmailConnector"
        host="${email.host}" port="${email.port}" user="${email.user}"
        subject="#[payload.getSubject()]" password="${email.password}"
        doc:name="SMTP" />
</flow>

Exception is --

Root Exception stack trace:
[Error: unable to resolve method: java.lang.String.getSubject() [arglength=0]]
[Near : {... payload.getSubject() ....}]
         ^

Upvotes: 1

Views: 1532

Answers (1)

Seba
Seba

Reputation: 2319

The SMTP transport is transforming your payload to a String in order to make it the body of the e-mail.

The solution for this is to store the subject in a variable prior to the SMTP outbound endpoint and use that variable:

    <logger level="INFO" doc:name="Logger" message="payload : #[payload.getClass()]"/>
    <set-variable variableName="subject" value="#[payload.getSubject()]" />
    <smtp:outbound-endpoint connector-ref="smtpGmailConnector"
        host="${email.host}" port="${email.port}" user="${email.user}"
        subject="#[flowVars['subject']]" password="${email.password}"
        doc:name="SMTP" />

Upvotes: 1

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