BTrace.java

/* BTrace Script Template */
import com.sun.btrace.annotations.*;
import static com.sun.btrace.BTraceUtils.*;

@BTrace
public class TracingScript {
    private static java.util.Map<String, Integer> myMap = newHashMap();
    private static int methodCountTreshold = 200;
    
	@OnMethod(
    clazz="/com\\.sowas\\.alphaagent\\..+/",
    method="/.*/",
    location=@Location(Kind.ENTRY)
    )
    public static void funcEnter() {
        String method = probeMethod();
        
        Integer callCount = 0;
        if (containsKey(myMap, method))
            callCount = get(myMap, method);
        callCount += 1;
        put(myMap, method, callCount);
        if (callCount > methodCountTreshold)
            return;
            
        print(timeMillis());
        print(' ');
        print("entering ");
        print(probeClass());
        print('.');
        print(method);
        print(" (");
        print(callCount);
        println(")");
    }
    
    @OnMethod(
    clazz="/com\\.sowas\\.alphaagent\\..+/",
    method="/.*/",
    location=@Location(Kind.RETURN)
    )
    public static void funcLeave() {
        String method = probeMethod();
        
        Integer callCount = 0;
        if (containsKey(myMap, method))
            callCount = get(myMap, method);
        callCount += 1;
        put(myMap, method, callCount);
        if (callCount > methodCountTreshold)
            return;
            
        print(timeMillis());
        print(' ');
        print("leaving ");
        print(probeClass());
        print('.');
        print(method);
        print(" (");
        print(callCount);
        println(")");
    }
}