/**
* 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);
}
}
public void insertListOfCallPoints(@Nullable List<CallPoint> callPoints) {
if (content.length() == 0) {
content.append(EOL).append(" ");
}
content.append(" <ol style='display:none'>");
if (callPoints == null) {
content.append("</ol>").append(EOL).append(" ");
return;
}
content.append(EOL);
CallPoint currentCP = callPoints.get(0);
appendTestMethod(currentCP.getStackTraceElement());
appendRepetitionCountIfNeeded(currentCP);
for (int i = 1, n = callPoints.size(); i < n; i++) {
CallPoint nextCP = callPoints.get(i);
StackTraceElement ste = nextCP.getStackTraceElement();
if (nextCP.isSameTestMethod(currentCP)) {
content.append(", ").append(ste.getLineNumber());
} else {
content.append("</li>").append(EOL);
appendTestMethod(ste);
}
appendRepetitionCountIfNeeded(nextCP);
currentCP = nextCP;
}
content.append("</li>").append(EOL).append(" </ol>").append(EOL).append(" ");
}
/**
* 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 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;
}
}
/**
* Prints out the given debug message to System.out, prefixed by the calling class name, method
* and line number, appending the stacktrace of the given exception.
*/
public static void out(final String _debug_msg, final Throwable _exception) {
String header = "DEBUG::";
header = header + new Date(SystemTime.getCurrentTime()).toString() + "::";
String className;
String methodName;
int lineNumber;
String trace_trace_tail = null;
try {
throw new Exception();
} catch (Exception e) {
StackTraceElement[] st = e.getStackTrace();
StackTraceElement first_line = st[2];
className = first_line.getClassName() + "::";
methodName = first_line.getMethodName() + "::";
lineNumber = first_line.getLineNumber();
trace_trace_tail = getCompressedStackTrace(e, 3, 200, false);
}
diagLoggerLogAndOut(header + className + (methodName) + lineNumber + ":", true);
if (_debug_msg.length() > 0) {
diagLoggerLogAndOut(" " + _debug_msg, true);
}
if (trace_trace_tail != null) {
diagLoggerLogAndOut(" " + trace_trace_tail, true);
}
if (_exception != null) {
diagLoggerLogAndOut(_exception);
}
}
private void appendTestMethod(@Nonnull StackTraceElement current) {
content.append(" <li>");
content.append(current.getClassName()).append('#');
content
.append(LESS_THAN_CHAR.matcher(current.getMethodName()).replaceFirst("<"))
.append(": ");
content.append(current.getLineNumber());
}
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() + ")");
}
}
public static void printStackTrace(Throwable e, Object context) {
String header = "DEBUG::";
header = header + new Date(SystemTime.getCurrentTime()).toString() + "::";
String className = "?::";
String methodName = "?::";
int lineNumber = -1;
try {
throw new Exception();
} catch (Exception f) {
StackTraceElement[] st = f.getStackTrace();
for (int i = 1; i < st.length; i++) {
StackTraceElement first_line = st[i];
className = first_line.getClassName() + "::";
methodName = first_line.getMethodName() + "::";
lineNumber = first_line.getLineNumber();
// skip stuff generated by the logger
if (className.indexOf(".logging.") != -1 || className.endsWith(".Debug::")) {
continue;
}
break;
}
}
diagLoggerLogAndOut(header + className + (methodName) + lineNumber + ":", true);
try {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
PrintWriter pw = new PrintWriter(new OutputStreamWriter(baos));
if (context != null) {
pw.print(" ");
pw.println(context);
}
pw.print(" ");
e.printStackTrace(pw);
pw.close();
String stack = baos.toString();
diagLoggerLogAndOut(stack, true);
} catch (Throwable ignore) {
e.printStackTrace();
}
}
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;
}
@Override
public int hashCode() {
if (hashCode == 0) {
int res = 1 + site.length * 17;
int max = Math.max(site.length, 10);
for (int i = offset; i < max; i++) {
StackTraceElement e = site[i];
int lineNumber = e.getLineNumber();
res = res * 19 + 31 * lineNumber;
}
hashCode = res;
}
return hashCode;
}
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() + ")");
}
}
}
public static void invoke(Http.Request request, Http.Response response) {
Monitor monitor = null;
try {
resolve(request, response);
Method actionMethod = request.invokedMethod;
// 1. Prepare request params
Scope.Params.current().__mergeWith(request.routeArgs);
// add parameters from the URI query string
String encoding = Http.Request.current().encoding;
Scope.Params.current()
._mergeWith(
UrlEncodedParser.parseQueryString(
new ByteArrayInputStream(request.querystring.getBytes(encoding))));
// 2. Easy debugging ...
if (Play.mode == Play.Mode.DEV) {
Controller.class.getDeclaredField("params").set(null, Scope.Params.current());
Controller.class.getDeclaredField("request").set(null, Http.Request.current());
Controller.class.getDeclaredField("response").set(null, Http.Response.current());
Controller.class.getDeclaredField("session").set(null, Scope.Session.current());
Controller.class.getDeclaredField("flash").set(null, Scope.Flash.current());
Controller.class.getDeclaredField("renderArgs").set(null, Scope.RenderArgs.current());
Controller.class.getDeclaredField("routeArgs").set(null, Scope.RouteArgs.current());
Controller.class.getDeclaredField("validation").set(null, Validation.current());
}
ControllerInstrumentation.stopActionCall();
Play.pluginCollection.beforeActionInvocation(actionMethod);
// Monitoring
monitor = MonitorFactory.start(request.action + "()");
// 3. Invoke the action
try {
// @Before
handleBefores(request);
// Action
Result actionResult = null;
String cacheKey = null;
// Check the cache (only for GET or HEAD)
if ((request.method.equals("GET") || request.method.equals("HEAD"))
&& actionMethod.isAnnotationPresent(CacheFor.class)) {
cacheKey = actionMethod.getAnnotation(CacheFor.class).id();
if ("".equals(cacheKey)) {
cacheKey = "urlcache:" + request.url + request.querystring;
}
actionResult = (Result) play.cache.Cache.get(cacheKey);
}
if (actionResult == null) {
ControllerInstrumentation.initActionCall();
try {
inferResult(invokeControllerMethod(actionMethod));
} catch (InvocationTargetException ex) {
// It's a Result ? (expected)
if (ex.getTargetException() instanceof Result) {
actionResult = (Result) ex.getTargetException();
// Cache it if needed
if (cacheKey != null) {
play.cache.Cache.set(
cacheKey, actionResult, actionMethod.getAnnotation(CacheFor.class).value());
}
} else {
// @Catch
Object[] args = new Object[] {ex.getTargetException()};
List<Method> catches =
Java.findAllAnnotatedMethods(Controller.getControllerClass(), Catch.class);
Collections.sort(
catches,
new Comparator<Method>() {
public int compare(Method m1, Method m2) {
Catch catch1 = m1.getAnnotation(Catch.class);
Catch catch2 = m2.getAnnotation(Catch.class);
return catch1.priority() - catch2.priority();
}
});
ControllerInstrumentation.stopActionCall();
for (Method mCatch : catches) {
Class[] exceptions = mCatch.getAnnotation(Catch.class).value();
if (exceptions.length == 0) {
exceptions = new Class[] {Exception.class};
}
for (Class exception : exceptions) {
if (exception.isInstance(args[0])) {
mCatch.setAccessible(true);
inferResult(invokeControllerMethod(mCatch, args));
break;
}
}
}
throw ex;
}
}
}
// @After
handleAfters(request);
monitor.stop();
monitor = null;
// OK, re-throw the original action result
if (actionResult != null) {
throw actionResult;
}
throw new NoResult();
} catch (IllegalAccessException ex) {
throw ex;
} catch (IllegalArgumentException ex) {
throw ex;
} catch (InvocationTargetException ex) {
// It's a Result ? (expected)
if (ex.getTargetException() instanceof Result) {
throw (Result) ex.getTargetException();
}
// Re-throw the enclosed exception
if (ex.getTargetException() instanceof PlayException) {
throw (PlayException) ex.getTargetException();
}
StackTraceElement element =
PlayException.getInterestingStrackTraceElement(ex.getTargetException());
if (element != null) {
throw new JavaExecutionException(
Play.classes.getApplicationClass(element.getClassName()),
element.getLineNumber(),
ex.getTargetException());
}
throw new JavaExecutionException(Http.Request.current().action, ex);
}
} catch (Result result) {
Play.pluginCollection.onActionInvocationResult(result);
// OK there is a result to apply
// Save session & flash scope now
Scope.Session.current().save();
Scope.Flash.current().save();
result.apply(request, response);
Play.pluginCollection.afterActionInvocation();
// @Finally
handleFinallies(request, null);
} catch (PlayException e) {
handleFinallies(request, e);
throw e;
} catch (Throwable e) {
handleFinallies(request, e);
throw new UnexpectedException(e);
} finally {
if (monitor != null) {
monitor.stop();
}
}
}
/**
* Format the given message to XML.
*
* @param record the log record to be formatted.
* @return a formatted log record
*/
public String format(LogRecord record0) {
if (!(record0 instanceof TopLinkLogRecord)) {
return super.format(record0);
} else {
TopLinkLogRecord record = (TopLinkLogRecord) record0;
StringBuffer sb = new StringBuffer(500);
sb.append("<record>\n");
if (record.shouldPrintDate()) {
sb.append(" <date>");
appendISO8601(sb, record.getMillis());
sb.append("</date>\n");
sb.append(" <millis>");
sb.append(record.getMillis());
sb.append("</millis>\n");
}
sb.append(" <sequence>");
sb.append(record.getSequenceNumber());
sb.append("</sequence>\n");
String name = record.getLoggerName();
if (name != null) {
sb.append(" <logger>");
escape(sb, name);
sb.append("</logger>\n");
}
sb.append(" <level>");
escape(sb, record.getLevel().toString());
sb.append("</level>\n");
if (record.getSourceClassName() != null) {
sb.append(" <class>");
escape(sb, record.getSourceClassName());
sb.append("</class>\n");
}
if (record.getSourceMethodName() != null) {
sb.append(" <method>");
escape(sb, record.getSourceMethodName());
sb.append("</method>\n");
}
if (record.getSessionString() != null) {
sb.append(" <session>");
sb.append(record.getSessionString());
sb.append("</session>\n");
}
if (record.getConnection() != null) {
sb.append(" <connection>");
sb.append(String.valueOf(System.identityHashCode(record.getConnection())));
sb.append("</connection>\n");
}
if (record.shouldPrintThread()) {
sb.append(" <thread>");
sb.append(record.getThreadID());
sb.append("</thread>\n");
}
if (record.getMessage() != null) {
// Format the message string and its accompanying parameters.
String message = formatMessage(record);
sb.append(" <message>");
escape(sb, message);
sb.append("</message>");
sb.append("\n");
}
// If the message is being localized, output the key, resource
// bundle name, and params.
ResourceBundle bundle = record.getResourceBundle();
try {
if ((bundle != null) && (bundle.getString(record.getMessage()) != null)) {
sb.append(" <key>");
escape(sb, record.getMessage());
sb.append("</key>\n");
sb.append(" <catalog>");
escape(sb, record.getResourceBundleName());
sb.append("</catalog>\n");
Object[] parameters = record.getParameters();
for (int i = 0; i < parameters.length; i++) {
sb.append(" <param>");
try {
escape(sb, parameters[i].toString());
} catch (Exception ex) {
sb.append("???");
}
sb.append("</param>\n");
}
}
} catch (Exception ex) {
// The message is not in the catalog. Drop through.
}
if (record.getThrown() != null) {
// Report on the state of the throwable.
Throwable th = record.getThrown();
sb.append(" <exception>\n");
sb.append(" <message>");
escape(sb, th.toString());
sb.append("</message>\n");
if ((record.getLevel().intValue() == Level.SEVERE.intValue())
|| ((record.getLevel().intValue() <= Level.WARNING.intValue())
&& record.shouldLogExceptionStackTrace())) {
StackTraceElement[] trace = th.getStackTrace();
for (int i = 0; i < trace.length; i++) {
StackTraceElement frame = trace[i];
sb.append(" <frame>\n");
sb.append(" <class>");
escape(sb, frame.getClassName());
sb.append("</class>\n");
sb.append(" <method>");
escape(sb, frame.getMethodName());
sb.append("</method>\n");
// Check for a line number.
if (frame.getLineNumber() >= 0) {
sb.append(" <line>");
sb.append(frame.getLineNumber());
sb.append("</line>\n");
}
sb.append(" </frame>\n");
}
}
sb.append(" </exception>\n");
}
sb.append("</record>\n");
return sb.toString();
}
}
/**
* Checks and calla all methods in controller annotated with @Finally. The caughtException-value
* is sent as argument to @Finally-method if method has one argument which is Throwable
*
* @param request
* @param caughtException If @Finally-methods are called after an error, this variable holds the
* caught error
* @throws PlayException
*/
static void handleFinallies(Http.Request request, Throwable caughtException)
throws PlayException {
if (Controller.getControllerClass() == null) {
// skip it
return;
}
try {
List<Method> allFinally =
Java.findAllAnnotatedMethods(Controller.getControllerClass(), Finally.class);
Collections.sort(
allFinally,
new Comparator<Method>() {
public int compare(Method m1, Method m2) {
Finally finally1 = m1.getAnnotation(Finally.class);
Finally finally2 = m2.getAnnotation(Finally.class);
return finally1.priority() - finally2.priority();
}
});
ControllerInstrumentation.stopActionCall();
for (Method aFinally : allFinally) {
String[] unless = aFinally.getAnnotation(Finally.class).unless();
String[] only = aFinally.getAnnotation(Finally.class).only();
boolean skip = false;
for (String un : only) {
if (!un.contains(".")) {
un = aFinally.getDeclaringClass().getName().substring(12) + "." + un;
}
if (un.equals(request.action)) {
skip = false;
break;
} else {
skip = true;
}
}
for (String un : unless) {
if (!un.contains(".")) {
un = aFinally.getDeclaringClass().getName().substring(12) + "." + un;
}
if (un.equals(request.action)) {
skip = true;
break;
}
}
if (!skip) {
aFinally.setAccessible(true);
// check if method accepts Throwable as only parameter
Class[] parameterTypes = aFinally.getParameterTypes();
if (parameterTypes.length == 1 && parameterTypes[0] == Throwable.class) {
// invoking @Finally method with caughtException as parameter
invokeControllerMethod(aFinally, new Object[] {caughtException});
} else {
// invoce @Finally-method the regular way without caughtException
invokeControllerMethod(aFinally, null);
}
}
}
} catch (InvocationTargetException ex) {
StackTraceElement element =
PlayException.getInterestingStrackTraceElement(ex.getTargetException());
if (element != null) {
throw new JavaExecutionException(
Play.classes.getApplicationClass(element.getClassName()),
element.getLineNumber(),
ex.getTargetException());
}
throw new JavaExecutionException(Http.Request.current().action, ex);
} catch (Exception e) {
throw new UnexpectedException("Exception while doing @Finally", e);
}
}