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From "Raman Gupta (JIRA)" <mime4j-...@james.apache.org>
Subject [jira] [Created] (MIME4J-222) MessageIdFactory is needed
Date Sun, 10 Mar 2013 16:39:12 GMT
Raman Gupta created MIME4J-222:
----------------------------------

             Summary: MessageIdFactory is needed
                 Key: MIME4J-222
                 URL: https://issues.apache.org/jira/browse/MIME4J-222
             Project: James Mime4j
          Issue Type: Improvement
          Components: parser (core)
    Affects Versions: 0.8
            Reporter: Raman Gupta
             Fix For: 0.8


In order to create a custom Message-Id, one must currently override the method "newMessageId"
e.g.

        return new MessageImpl() {
            @Override
            protected UnstructuredField newMessageId(String hostname) {
                String fieldValue = createUniqueMessageId(hostname);
                return parse(UnstructuredFieldImpl.PARSER, FieldName.MESSAGE_ID, fieldValue);
            }
        };

However, in some cases Mime4j instantiates the MessageImpl internally e.g. DefaultMessageBuilder.parseMessage
and therefore the newMessageId function cannot be overwridden. This means that I cannot use
DefaultMessageBuilder to create a MessageImpl in which I control how the Message-Id is created.

Can DefaultMessageBuilder take a MessageImplFactory to create the MessageImpl?

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