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In case of events logged due to an error occurred while processing a job or change of state of a resource , a detailed error message describing the reason of failure would be logged into the error_message field of the event. Based on who the user is an admin or a normal user relevant error message would be shown to the end user.

How would error_message data be filled?

Currently, the error messages are ignored in case of any exceptions while a job is performed. The event interceptors in case of error log error events with the hard coded description provided in the event files.

public class ActionEventInterceptor implements ComponentMethodInterceptor, MethodInterceptor {
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@Override
public Object invoke(MethodInvocation invocation) throws Throwable {
    ...
    try {
        interceptorData = interceptStart(m, target);
        Object result = invocation.proceed();
        success = true;
        return result;
    } finally {
        if (success) {
            interceptComplete(m, target, interceptorData);
        } else {
            interceptException(m, target, interceptorData);
        }
    }
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A catch error block would help to have descriptive error messages, instead of displaying short un-descriptive event descriptions in case of error events.

Externalize the event descriptions strings

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