package onethread;

import com.sun.btrace.Profiler;
import com.sun.btrace.annotations.*;
import static com.sun.btrace.BTraceUtils.*;

@BTrace(name="OneThreadTracker")
class OneThreadTracker {
    private Profiler p = Profiling.newProfiler();
    
    // replace values for clazz and method with desired class and method names

    @OnMethod(clazz="/java2d\\..*/", method="/.*/")
    void onEnter(@ProbeMethodName(fqn=true) String methodFqn) {
        // replace AWT-EventQueue-0 with the name of the thread you want to monitor
        if (strcmp(Threads.name(Threads.currentThread()), "AWT-EventQueue-0") == 0) {
            Profiling.recordEntry(p, methodFqn);
        }
    }
    
    @OnMethod(clazz="/java2d\\..*/", method="/.*/", location=@Location(value=Kind.RETURN))
    void onExit(@Duration long dur, @ProbeMethodName(fqn=true) String methodFqn) {
        // replace AWT-EventQueue-0 with the name of the thread you want to monitor
        if (strcmp(Threads.name(Threads.currentThread()), "AWT-EventQueue-0") == 0) {
            Profiling.recordExit(p, methodFqn, dur);
        }
    }
    
    @OnEvent()
    void showData() {
        Profiling.printSnapshot("My Data", p);
    }
}