- /*
- * Copyright 1999-2004 The Apache Software Foundation.
- *
- * Licensed 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 org.apache.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: 1.8 $ $Date: 2004/02/28 12:18:17 $
- */
- 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", 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);
- }
- }
- }