BTrace
BTrace
• Инструментирующий
профайлер
• CLI и плагин к Visual VM
• Скрипты на Java
https://github.com/btraceio/btrace
BTrace script
@Property
Profiler prof = Profiling.newProfiler();
@OnMethod(clazz = "org.jboss.seam.Component“, method = "/(inject|disinject|outject)/")
void entryByMethod2(@ProbeClassName String className,
@ProbeMethodName String methodName, @Self Object component) {
if (component != null) {
Field nameField = field(classOf(component), "name", true);
if (nameField != null) {
String name = (String)get(nameField, component);
Profiling.recordEntry(prof, concat("org.jboss.seam.Component.",
concat(methodName, concat(":", name))));
}
}
}
@OnMethod(clazz = "org.jboss.seam.Component“, method = "/(inject|disinject|outject)/",
location = @Location(value = Kind.RETURN))
void exitByMthd2(@ProbeClassName String className,
@ProbeMethodName String methodName, @Self Object component,
@Duration long duration) {
if (component != null) {
Field nameField = field(classOf(component), "name", true);
if (nameField != null) {
String name = (String)get(nameField, component);
Profiling.recordExit(prof, concat("org.jboss.seam.Component.",
concat(methodName, concat(":", name))), duration);
}
}
}