/***** BEGIN LICENSE BLOCK *****
* Version: CPL 1.0/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Common Public
* License Version 1.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.eclipse.org/legal/cpl-v10.html
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
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* Copyright (C) 2001 Alan Moore <alan_moore@gmx.net>
* Copyright (C) 2001-2004 Jan Arne Petersen <jpetersen@uni-bonn.de>
* Copyright (C) 2002 Benoit Cerrina <b.cerrina@wanadoo.fr>
* Copyright (C) 2002-2004 Anders Bengtsson <ndrsbngtssn@yahoo.se>
* Copyright (C) 2004 Thomas E Enebo <enebo@acm.org>
* Copyright (C) 2004 Joey Gibson <joey@joeygibson.com>
* Copyright (C) 2004 Stefan Matthias Aust <sma@3plus4.de>
* Copyright (C) 2005 Charles O Nutter <headius@headius.com>
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package org.jruby.exceptions;
import java.io.ByteArrayOutputStream;
import java.io.PrintStream;
import java.io.PrintWriter;
import java.io.StringWriter;
import org.jruby.*;
import org.jruby.javasupport.util.RuntimeHelpers;
import org.jruby.runtime.Block;
import org.jruby.runtime.EventHook;
import org.jruby.runtime.RubyEvent;
import org.jruby.runtime.MethodIndex;
import org.jruby.runtime.ThreadContext;
import org.jruby.runtime.builtin.IRubyObject;
public class RaiseException extends JumpException {
public static final boolean DEBUG = false;
private static final long serialVersionUID = -7612079169559973951L;
private RubyException exception;
public RaiseException(RubyException actException) {
this(actException, false);
}
public RaiseException(Ruby runtime, RubyClass excptnClass, String msg, boolean nativeException) {
super(msg);
if (msg == null) {
msg = "No message available";
}
if (DEBUG) {
Thread.dumpStack();
}
setException((RubyException)RuntimeHelpers.invoke(
runtime.getCurrentContext(),
excptnClass,
"new",
RubyString.newUnicodeString(excptnClass.getRuntime(), msg)),
nativeException);
}
public RaiseException(RubyException exception, boolean isNativeException) {
super();
if (DEBUG) {
Thread.dumpStack();
}
setException(exception, isNativeException);
}
public static RaiseException createNativeRaiseException(Ruby runtime, Throwable cause) {
NativeException nativeException = new NativeException(runtime, runtime.getClass(NativeException.CLASS_NAME), cause);
return new RaiseException(cause, nativeException);
}
private static String buildMessage(Throwable exception) {
StringBuilder sb = new StringBuilder();
StringWriter stackTrace = new StringWriter();
exception.printStackTrace(new PrintWriter(stackTrace));
sb.append("Native Exception: '").append(exception.getClass()).append("'; ");
sb.append("Message: ").append(exception.getMessage()).append("; ");
sb.append("StackTrace: ").append(stackTrace.getBuffer().toString());
return sb.toString();
}
public RaiseException(Throwable cause, NativeException nativeException) {
super(buildMessage(cause), cause);
setException(nativeException, false);
}
/**
* Gets the exception
* @return Returns a RubyException
*/
public RubyException getException() {
return exception;
}
/**
* Sets the exception
* @param newException The exception to set
*/
protected void setException(RubyException newException, boolean nativeException) {
Ruby runtime = newException.getRuntime();
ThreadContext context = runtime.getCurrentContext();
if (!context.isWithinDefined()) {
runtime.getGlobalVariables().set("$!", newException);
}
if (runtime.hasEventHooks()) {
runtime.callEventHooks(
context,
RubyEvent.RAISE,
context.getFile(),
context.getLine(),
context.getFrameName(),
context.getFrameKlazz());
}
this.exception = newException;
if (runtime.getStackTraces() > 5) {
return;
}
runtime.setStackTraces(runtime.getStackTraces() + 1);
StackTraceElement[] stackTrace = context.createBacktrace2(0, nativeException);
newException.setBacktraceFrames(stackTrace);
// JRUBY-2673: if wrapping a NativeException, use the actual Java exception's trace as our Java trace
if (newException instanceof NativeException) {
setStackTrace(((NativeException)newException).getCause().getStackTrace());
} else {
setStackTrace(stackTrace);
}
runtime.setStackTraces(runtime.getStackTraces() - 1);
}
public void printStackTrace() {
printStackTrace(System.err);
}
public void printStackTrace(PrintStream ps) {
StackTraceElement[] trace = getStackTrace();
int externalIndex = 0;
for (int i = trace.length - 1; i > 0; i--) {
if (trace[i].getClassName().indexOf("org.jruby.evaluator") >= 0) {
break;
}
externalIndex = i;
}
IRubyObject backtrace = exception.backtrace();
Ruby runtime = backtrace.getRuntime();
if (runtime.getNil() != backtrace) {
String firstLine = backtrace.callMethod(runtime.getCurrentContext(), "first").convertToString().toString();
ps.print(firstLine + ": ");
}
ps.println(exception.message.convertToString() + " (" + exception.getMetaClass().toString() + ")");
exception.printBacktrace(ps);
ps.println("\t...internal jruby stack elided...");
for (int i = externalIndex; i < trace.length; i++) {
ps.println("\tfrom " + trace[i].toString());
}
}
public void printStackTrace(PrintWriter pw) {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
printStackTrace(new PrintStream(baos));
pw.print(baos.toString());
}
}