// Private method to infer the caller's class and method names private void inferCaller() { needToInferCaller = false; // Android-changed: Use VMStack.getThreadStackTrace. StackTraceElement[] stack = VMStack.getThreadStackTrace(Thread.currentThread()); int depth = stack.length; boolean lookingForLogger = true; for (int ix = 0; ix < depth; ix++) { // Calling getStackTraceElement directly prevents the VM // from paying the cost of building the entire stack frame. // // Android-changed: Use value from getThreadStackTrace. StackTraceElement frame = stack[ix]; String cname = frame.getClassName(); boolean isLoggerImpl = isLoggerImplFrame(cname); if (lookingForLogger) { // Skip all frames until we have found the first logger frame. if (isLoggerImpl) { lookingForLogger = false; } } else { if (!isLoggerImpl) { // skip reflection call if (!cname.startsWith("java.lang.reflect.") && !cname.startsWith("sun.reflect.")) { // We've found the relevant frame. setSourceClassName(cname); setSourceMethodName(frame.getMethodName()); return; } } } } // We haven't found a suitable frame, so just punt. This is // OK as we are only committed to making a "best effort" here. }
/** Returns an array of {@link StackTraceElement} representing the current thread's stack. */ public StackTraceElement[] getStackTrace() { StackTraceElement ste[] = VMStack.getThreadStackTrace(this); return ste != null ? ste : EmptyArray.STACK_TRACE_ELEMENT; }