/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache 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.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.frameworkset.commons.dbcp;
import java.io.PrintStream;
import java.io.PrintWriter;
import java.lang.reflect.Method;
import java.sql.DriverManager;
import java.sql.SQLException;
/**
* A SQLException subclass containing another Throwable
*
* @author Dirk Verbeeck
* @version $Revision: 479137 $ $Date: 2006-11-25 08:51:48 -0700 (Sat, 25 Nov 2006) $
*/
public class SQLNestedException extends SQLException {
/* Throwable.getCause detection as found in commons-lang */
private static final Method THROWABLE_CAUSE_METHOD;
static {
Method getCauseMethod;
try {
getCauseMethod = Throwable.class.getMethod("getCause", (Class[]) null);
} catch (Exception e) {
getCauseMethod = null;
}
THROWABLE_CAUSE_METHOD = getCauseMethod;
}
private static boolean hasThrowableCauseMethod() {
return THROWABLE_CAUSE_METHOD != null;
}
/**
* Holds the reference to the exception or error that caused
* this exception to be thrown.
*/
private Throwable cause = null;
/**
* Constructs a new <code>SQLNestedException</code> with specified
* detail message and nested <code>Throwable</code>.
*
* @param msg the error message
* @param cause the exception or error that caused this exception to be
* thrown
*/
public SQLNestedException(String msg, Throwable cause) {
super(msg);
this.cause = cause;
if ((cause != null) && (DriverManager.getLogWriter() != null)) {
DriverManager.getLogWriter().print("Caused by: ");
cause.printStackTrace(DriverManager.getLogWriter());
}
}
public Throwable getCause() {
return this.cause;
}
public void printStackTrace(PrintStream s) {
super.printStackTrace(s);
if ((cause != null) && !hasThrowableCauseMethod()) {
s.print("Caused by: ");
this.cause.printStackTrace(s);
}
}
public void printStackTrace(PrintWriter s) {
super.printStackTrace(s);
if ((cause != null) && !hasThrowableCauseMethod()) {
s.print("Caused by: ");
this.cause.printStackTrace(s);
}
}
}