/*
* JBoss, Home of Professional Open Source.
* See the COPYRIGHT.txt file distributed with this work for information
* regarding copyright ownership. Some portions may be licensed
* to Red Hat, Inc. under one or more contributor license agreements.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA.
*/
package org.teiid.client.util;
import java.lang.reflect.Constructor;
import java.lang.reflect.Method;
import org.teiid.client.xa.XATransactionException;
import org.teiid.core.TeiidComponentException;
import org.teiid.core.TeiidException;
import org.teiid.core.TeiidRuntimeException;
public class ExceptionUtil {
public static <T extends Throwable> T getExceptionOfType(Throwable ex, Class<T> cls) {
while (ex != null) {
if (cls.isAssignableFrom(ex.getClass())) {
return cls.cast(ex);
}
if (ex.getCause() == ex) {
break;
}
ex = ex.getCause();
}
return null;
}
public static Throwable convertException(Method method, Throwable exception) {
boolean canThrowXATransactionException = false;
boolean canThrowComponentException = false;
Class<?>[] exceptionClasses = method.getExceptionTypes();
for (int i = 0; i < exceptionClasses.length; i++) {
if (exceptionClasses[i].isAssignableFrom(exception.getClass())) {
return exception;
}
if (!canThrowComponentException) {
canThrowComponentException = TeiidComponentException.class.isAssignableFrom(exceptionClasses[i]);
}
if (!canThrowXATransactionException) {
canThrowXATransactionException = XATransactionException.class.isAssignableFrom(exceptionClasses[i]);
}
}
if (canThrowComponentException) {
return new TeiidComponentException(exception);
}
if (canThrowXATransactionException) {
return new XATransactionException(exception);
}
if (RuntimeException.class.isAssignableFrom(exception.getClass())) {
return exception;
}
return new TeiidRuntimeException(exception);
}
/**
* Strip out the message and optionally the stacktrace
* @param t
* @return
*/
public static Throwable sanitize(Throwable t, boolean perserveStack) {
String code = null;
if (t instanceof TeiidException) {
code = ((TeiidException)t).getCode();
} else if (t instanceof TeiidRuntimeException) {
code = ((TeiidRuntimeException)t).getCode();
} else {
code = t.getClass().getName();
}
Throwable child = null;
if (t.getCause() != null && t.getCause() != t) {
child = sanitize(t.getCause(), perserveStack);
}
Class<?> clazz = t.getClass();
Throwable result = null;
while (clazz != null) {
if (clazz == Throwable.class || clazz == Exception.class) {
break;
}
Constructor<?> ctor = null;
try {
ctor = clazz.getDeclaredConstructor(new Class<?>[] {String.class});
result = (Throwable) ctor.newInstance(code);
break;
} catch (Exception e) {
}
clazz = clazz.getSuperclass();
}
if (result == null) {
result = new TeiidException(code);
}
if (result instanceof TeiidException) {
((TeiidException)result).setCode(code);
} else if (result instanceof TeiidRuntimeException) {
((TeiidException)result).setCode(code);
}
if (child != null) {
result.initCause(child);
}
if (perserveStack) {
result.setStackTrace(t.getStackTrace());
} else {
result.setStackTrace(new StackTraceElement[0]);
}
return result;
}
}