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/***** BEGIN LICENSE BLOCK *****
* Version: EPL 2.0/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Eclipse Public
* License Version 2.0 (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/epl-v20.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.
*
* Copyright (C) 2005 David Corbin <dcorbin@users.sourceforge.net>
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the EPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the EPL, the GPL or the LGPL.
***** END LICENSE BLOCK *****/
package org.jruby;
import java.lang.reflect.Member;
import org.jruby.anno.JRubyClass;
import org.jruby.anno.JRubyMethod;
import org.jruby.javasupport.Java;
import org.jruby.runtime.Block;
import org.jruby.runtime.ThreadContext;
import org.jruby.runtime.builtin.IRubyObject;
import static org.jruby.api.Define.defineClass;
@Deprecated(since = "9.2.0.0")
@JRubyClass(name = "NativeException", parent = "RuntimeError")
public class NativeException extends RubyException {
private final Throwable cause;
private final String messageAsJavaString;
public static final String CLASS_NAME = "NativeException";
public NativeException(Ruby runtime, RubyClass rubyClass, Throwable cause) {
this(runtime, rubyClass, cause, buildMessage(cause));
}
private NativeException(Ruby runtime, RubyClass rubyClass, Throwable cause, String message) {
super(runtime, rubyClass, message);
this.cause = cause;
String s = buildMessage(cause);
this.messageAsJavaString = message;
}
private static String buildMessage(Throwable cause) {
return cause.getClass().getName() + ": " + searchStackMessage(cause);
}
private NativeException(Ruby runtime, RubyClass rubyClass) {
super(runtime, rubyClass, null);
this.cause = new Throwable();
this.messageAsJavaString = null;
}
public static RubyClass createClass(ThreadContext context, RubyClass baseClass, RubyClass Object) {
RubyClass NativeException = defineClass(context, CLASS_NAME, baseClass, NativeException::new).
defineMethods(context, NativeException.class);
Object.deprecateConstant(context, CLASS_NAME);
return NativeException;
}
@JRubyMethod
public final IRubyObject cause() {
return Java.getInstance(getRuntime(), getCause());
}
@Override
public final IRubyObject backtrace() {
IRubyObject rubyTrace = super.backtrace();
if ( rubyTrace.isNil() ) return rubyTrace;
final Ruby runtime = getRuntime();
final RubyArray rTrace = (RubyArray) rubyTrace;
StackTraceElement[] jTrace = cause.getStackTrace();
// NOTE: with the new filtering ruby trace will already include the source (Java) part
if ( rTrace.size() > 0 && jTrace.length > 0 ) {
final String r0 = rTrace.eltInternal(0).toString();
// final StackTraceElement j0 = jTrace[0];
final String method = jTrace[0].getMethodName();
final String file = jTrace[0].getFileName();
if ( method != null && file != null &&
r0.indexOf(method) != -1 && r0.indexOf(file) != -1 ) {
return rTrace; // as is
}
}
// so join-ing is mostly unnecessary, but just in case (due compatibility) make sure :
return joinedBacktrace(runtime, rTrace, jTrace);
}
private static RubyArray joinedBacktrace(final Ruby runtime, final RubyArray rTrace, final StackTraceElement[] jTrace) {
final IRubyObject[] trace = new IRubyObject[jTrace.length + rTrace.size()];
final StringBuilder line = new StringBuilder(32);
for ( int i = 0; i < jTrace.length; i++ ) {
StackTraceElement element = jTrace[i];
final String className = element.getClassName();
line.setLength(0);
if (element.getFileName() == null) {
line.append(className).append(':').append(element.getLineNumber()).append(":in '").append(element.getMethodName()).append('\'');
} else {
final int index = className.lastIndexOf('.');
if ( index > - 1 ) {
line.append(className.substring(0, index).replace('.', '/'));
line.append('/');
}
line.append(element.getFileName()).append(':').append(element.getLineNumber()).append(":in '").append(element.getMethodName()).append('\'');
}
trace[i] = RubyString.newString(runtime, line.toString());
}
System.arraycopy(rTrace.toJavaArrayMaybeUnsafe(), 0, trace, jTrace.length, rTrace.size());
return RubyArray.newArrayMayCopy(runtime, trace);
}
@Override
public final IRubyObject getMessage() {
if (message == null) {
if (messageAsJavaString == null) {
return message = getRuntime().getNil();
}
return message = getRuntime().newString(messageAsJavaString);
}
return message;
}
@Override
public final String getMessageAsJavaString() {
return messageAsJavaString;
}
public final Throwable getCause() {
return cause;
}
private static String searchStackMessage(Throwable cause) {
String message;
do {
message = cause.getMessage();
if ( message != null ) return message;
cause = cause.getCause();
} while ( cause != null );
return null;
}
}