// 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;
}
