public static void printSite(Site s, StringBuilder out) {
if (s == null) {
out.append("(null)");
return;
}
StackTraceElement[] st = s.site();
int interestingSitesPrinted = 0;
for (int i = s.offset; i < st.length; i++) {
StackTraceElement e = st[i];
String fileName = e.getFileName();
if (THIS_FILE_NAME.equals(fileName)) {
continue;
}
out.append(" " + e.getMethodName() + "(" + e.getFileName() + ":" + e.getLineNumber() + ")");
interestingSitesPrinted++;
if (interestingSitesPrinted <= SITES_TO_PRINT) {
continue;
}
if (fileName == null || "View.java".equals(fileName)) {
continue;
}
String methodName = e.getMethodName();
if (skipMethods.contains(methodName)) {
continue;
}
break;
}
}
private static boolean isStackElementDebugClassFile(StackTraceElement element) {
StackTraceElement[] stackTraceElements = new Throwable().getStackTrace();
if (stackTraceElements == null) return false;
String name = stackTraceElements[0].getFileName();
if (name == null) return false;
//noinspection SimplifiableIfStatement
if (element == null || element.getFileName() == null) return false;
return element.getFileName().equals(name);
}
/**
* Gets an approximate source code location for a node if possible.
*
* @return a file name and source line number in stack trace format (e.g. "String.java:32") if an
* approximate source location is found, null otherwise
*/
public static String approxSourceLocation(Node node) {
StackTraceElement[] stackTraceElements = approxSourceStackTraceElement(node);
if (stackTraceElements != null && stackTraceElements.length > 0) {
StackTraceElement top = stackTraceElements[0];
if (top.getFileName() != null && top.getLineNumber() >= 0) {
return top.getFileName() + ":" + top.getLineNumber();
}
}
return null;
}
/** Checks all of the methods in gen for consistency */
public static void checkMgens(final ClassGen gen) {
if (skip_checks) return;
Method[] methods = gen.getMethods();
for (int i = 0; i < methods.length; i++) {
Method method = methods[i];
// System.out.println ("Checking method " + method + " in class "
// + gen.getClassName());
checkMgen(new MethodGen(method, gen.getClassName(), gen.getConstantPool()));
}
if (false) {
Throwable t = new Throwable();
t.fillInStackTrace();
StackTraceElement[] ste = t.getStackTrace();
StackTraceElement caller = ste[1];
System.out.printf(
"%s.%s (%s line %d)",
caller.getClassName(),
caller.getMethodName(),
caller.getFileName(),
caller.getLineNumber());
for (int ii = 2; ii < ste.length; ii++)
System.out.printf(" [%s line %d]", ste[ii].getFileName(), ste[ii].getLineNumber());
System.out.printf("\n");
dump_methods(gen);
}
}
/**
* This method duplicates the functionality of ExceptionUtils.describeStackLevels which is no
* longer supported in Rice.
*
* @param fromLevel
* @param toLevel
* @return
*/
public static String getMethodPath(int fromLevel, int toLevel) {
StackTraceElement[] stackTraceElements = Thread.currentThread().getStackTrace();
// increase the levels to avoid including the method that called this.
fromLevel = fromLevel + 1;
toLevel = toLevel + 1;
if (fromLevel <= 0) {
throw new IllegalArgumentException("invalid fromLevel (" + fromLevel + " < 0)");
}
if (fromLevel > toLevel) {
throw new IllegalArgumentException(
"invalid levels (fromLevel " + fromLevel + " > toLevel " + toLevel + ")");
}
if (toLevel >= stackTraceElements.length) {
throw new IllegalArgumentException(
"invalid toLevel (" + toLevel + " >= " + stackTraceElements.length + ")");
}
StringBuffer result = new StringBuffer();
int elementIndex = 0;
for (StackTraceElement element : stackTraceElements) {
if (elementIndex >= fromLevel && elementIndex >= toLevel) {
if (result.length() > 0) {
result.append(" from ");
}
result.append(element.getClassName()).append(".");
result.append(element.getMethodName()).append("(");
result.append(element.getFileName()).append(":");
result.append(element.getLineNumber()).append(")");
}
elementIndex++;
}
return result.toString();
}
public static void printElement(Site s, int index) {
if (s == null || index >= s.site().length) {
ps.print("(null)");
} else {
StackTraceElement e = s.site()[index];
ps.print(e.getMethodName() + " (" + e.getFileName() + ":" + e.getLineNumber() + ")");
}
}
private static void printElementInfo(OutputStream stream, StackTraceElement element) {
print(stream, element.getClassName());
print(stream, ":");
print(stream, element.getMethodName());
print(stream, " ");
print(stream, "(");
print(stream, element.getFileName());
print(stream, ":");
print(stream, element.getLineNumber());
print(stream, ")");
printNewLine(stream);
}
protected String getTitle(Throwable t) {
String message = t.getMessage();
String tit = message;
if (tit == null) {
StackTraceElement el = t.getStackTrace()[0];
tit =
t.getClass().getName().substring(t.getClass().getPackage().getName().length() + 1)
+ " "
+ el.getFileName()
+ ":"
+ el.getLineNumber();
}
return tit;
}
private static void printThrowable(OutputStream stream, Throwable throwable) {
printBytes(stream, ("Exception " + throwable.toString()).getBytes());
printNewLine(stream);
StackTraceElement[] stackTraceElements = throwable.getStackTrace();
for (int i = stackTraceElements.length - 1; i >= 0; i--) {
StackTraceElement element = stackTraceElements[i];
printBytes(stream, element.getFileName().getBytes());
printBytes(stream, ":".getBytes());
printBytes(stream, String.valueOf(element.getLineNumber()).getBytes());
printNewLine(stream);
}
if (throwable.getCause() != null) {
printBytes(stream, "Caused by:\n".getBytes());
printThrowable(stream, throwable.getCause());
}
}
public static void printElements(Site s, int index, int nelems) {
if (s == null || index >= s.site().length) {
ps.print("(null)");
} else {
for (int i = 0; i < nelems; i++) {
int j = index + i;
if (j >= s.site().length) {
break;
}
if (i > 0) {
ps.print(", ");
}
StackTraceElement e = s.site()[j];
ps.print(e.getMethodName() + " (" + e.getFileName() + ":" + e.getLineNumber() + ")");
}
}
}
protected static boolean wasCalledDuringClassLoading() {
if (LOCK.isHeldByCurrentThread()) return true;
LOCK.lock();
try {
StackTrace st = new StackTrace(new Throwable());
int n = st.getDepth();
for (int i = 3; i < n; i++) {
StackTraceElement ste = st.getElement(i);
if ("ClassLoader.java".equals(ste.getFileName())
&& "loadClass".equals(ste.getMethodName())) {
return true;
}
}
return false;
} finally {
LOCK.unlock();
}
}
