How to get the signature of the method you are in?

Discussion in 'Java' started by Lethal Possum, Mar 29, 2007.

  1. Hello everyone,

    I use the following code to do some benchmarking of my application:

    public void go(String arg) {
    if (TRACE) {
    long start = System.currentTimeMillis();
    try {
    } finally {
    long stop = System.currentTimeMillis();
    Log.trace(_impl.getClass(), "go(String arg)", stop - start);
    } else {

    I was wondering what would be the most efficient way to generate the
    "go(String arg)" message automatically. A solution would be to do
    something like:

    Throwable t = new Throwable();
    StackTraceElement s = t.getStackTrace()[0];
    String message = s.getMethodName();

    But this strikes me as neither very elegant or efficient. And it
    doesn't include the full method signature, only the method name. Maybe
    someone have a better idea?

    Thanks in advance for your suggestions,

    Lethal Possum, Mar 29, 2007
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  2. Lethal Possum

    Daniel Pitts Guest

    You can also look into creating a tracing Proxy class

    look for java.lang.reflect.Proxy

    It basically allows you to trap method calls. If TRACE doesn't
    change, you could even make a factory the returns the _impl object if !
    TRACE, and return the proxy if TRACE. That provides even better

    Beyond that, you might even look into AspectJ or other Aspect Oriented
    Programming (AOP) frameworks.
    Daniel Pitts, Mar 29, 2007
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