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https://issues.apache.org/jira/browse/JAMES-2171?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16730137#comment-16730137
 ] 

ASF GitHub Bot commented on JAMES-2171:
---------------------------------------

Github user chibenwa commented on a diff in the pull request:

    https://github.com/apache/james-project/pull/145#discussion_r244283656
  
    --- Diff: 
mailet/test/src/main/java/org/apache/mailet/base/test/FakeMailetConfig.java ---
    @@ -76,22 +74,33 @@ public FakeMailetConfig build() {
     
         private final String mailetName;
         private final MailetContext mailetContext;
    -    private final Properties properties;
    +    private final Map<String, Object> properties;
     
    -    private FakeMailetConfig(String mailetName, MailetContext 
mailetContext, Properties properties) {
    +    private FakeMailetConfig(String mailetName, MailetContext 
mailetContext, Map properties) {
             this.mailetName = mailetName;
             this.mailetContext = mailetContext;
             this.properties = properties;
         }
     
    +    @Override
    +    public <T> T getInitParameter(String name, Class<T> clazz) {
    +        Object o = properties.get(name);
    +        if (o != null) {
    +            if (clazz.isInstance(o)) {
    +                return (T) properties.get(name);
    +            } else throw new ClassCastException(name + " property is not 
of type " + clazz.getCanonicalName());
    +        } else return null;
    --- End diff --
    
    You need an explicit `{}` block


> LogMessage mailet improvments
> -----------------------------
>
>                 Key: JAMES-2171
>                 URL: https://issues.apache.org/jira/browse/JAMES-2171
>             Project: James Server
>          Issue Type: Improvement
>          Components: Mailet Contributions
>    Affects Versions: master
>            Reporter: Tellier Benoit
>            Priority: Major
>              Labels: easyfix, newbie
>
> Today, one can use the LogMessage to generate log messages upon mail reception
> But the LogMessage have the following limits:
>  - It do not let you configure the warn level
>  - It does generate several logs. One would be simpler to review.
>  - It does add some unneeded informations, like mail name already carried by 
> the MDC
>  - It does not allow logging of specific headers or specific attributeNames. 
> This leads to missing information as well as "to much information".
>  - The code quality of the mailet is poor.
> You will:
>  - Ensure a single log message will be generated. For this you will call the 
> logger one time and concatenate log messages parts.
>  - Remove the log line with mail name.
>  - Add a **level** configuration option. It can takes value **warn**, 
> **info**, **debug** or **error**. It will be used to set the logger log level.
>  - Add a **specificHeaders** configuration option. It takes a comma separated 
> list of header names to include in the log message. By default it is empty.
>  - Add a **specificAttributes** configuration option.  It takes a comma 
> separated list of attribute names to be included in the log message. By 
> default it is empty.
>  - **body** configuration option should be false by default
>  - **header** configuration option should be false by default
>  - **init** should propagate exception while initilizing (Integer parse 
> exception, also passing a negative max body should throw.)
>  - Remove inlined affectation for field. They can be unset on their 
> declaration and set when init is called.
> Correct *LogMessageTest* accordingly.
> Don't hesitate to reach us on the *gitter* chat if you have any question.



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