How do you insert a newline in message body of mule logger component

Question

Can anyone tell me how to insert a new line in the message of a mule logger component?

For example, I have the following in the message for the logger:

Payload is: #[payload] 
Inbound Headers:  #[headers:INBOUND:*] 
Outbound Headers:  #[headers:OUTBOUND:*]  
Exceptions:  #[exception]

I'd like to insert a new line after each of the above. I've tried just adding \n to the end of each line, but that didn't work.

Solution 1

Use MEL:

    <logger
        message="#['Payload is:'+payload+'\nInbound Headers: '+message.inboundProperties.entrySet()+'\nOutbound Headers: '+message.outboundProperties.entrySet()+'\nExceptions: '+exception]"
        level="INFO" />

Solution 2

You could do something like this:

Payload is: #[payload] #[System.getProperty('line.separator')] Inbound Headers: ...

Solution 3

use expression-transformer:

<expression-transformer expression="#[message.payload = message.payload + System.getProperty('line.separator')]" doc:name="Append CRLF"/>

Solution 4

There are a couple of ways to do this:

1) Use: #[System.getProperty('line.separator')]

2) Use: #['\n'] eg: #['Hello\n'+payload+'Welcome to \n new line']

Solution 5

we can you the below format

#['\n'] #['\n']  #['\n'] #['\n']  #[payload] #[System.getProperty('line.separator')]

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Comments

[Seba]

It would still be better to use System.getProperty('line.separator') instead of \n to make it closs-platform.

[David Dossot]

@Seba Sounds good, but first we would need to make sure that \n isn't already interpreted by MVEL as System.getProperty('line.separator').

[ng10]

#['\n'] is best and simplest option of all - thank you!

[Eric Aya]

Isn't it the same as in Lova's answer?