| /* |
| * 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 org.apache.tomcat.jdbc.pool; |
| |
| |
| import java.lang.reflect.InvocationTargetException; |
| import java.lang.reflect.Method; |
| import java.sql.SQLException; |
| /** |
| * Interceptor that traps any unhandled exception types and throws an exception that has been declared by the method |
| * called, or throw a SQLException if it is declared. |
| * If the caught exception is not declared, and the method doesn't throw SQLException, then this interceptor will |
| * throw a RuntimeException |
| * |
| */ |
| public class TrapException extends JdbcInterceptor { |
| |
| |
| public TrapException() { |
| } |
| |
| @Override |
| public Object invoke(Object proxy, Method method, Object[] args) throws Throwable { |
| try { |
| return super.invoke(proxy, method, args); |
| }catch (Exception t) { |
| Throwable exception = t; |
| if (t instanceof InvocationTargetException && t.getCause() != null) { |
| exception = t.getCause(); |
| if (exception instanceof Error) { |
| throw exception; |
| } |
| } |
| Class<?> exceptionClass = exception.getClass(); |
| if (!isDeclaredException(method, exceptionClass)) { |
| if (isDeclaredException(method,SQLException.class)) { |
| SQLException sqlx = new SQLException("Uncaught underlying exception."); |
| sqlx.initCause(exception); |
| exception = sqlx; |
| } else { |
| RuntimeException rx = new RuntimeException("Uncaught underlying exception."); |
| rx.initCause(exception); |
| exception = rx; |
| } |
| } |
| throw exception; |
| } |
| |
| } |
| |
| public boolean isDeclaredException(Method m, Class<?> clazz) { |
| for (Class<?> cl : m.getExceptionTypes()) { |
| if (cl.equals(clazz) || cl.isAssignableFrom(clazz)) return true; |
| } |
| return false; |
| } |
| |
| /** |
| * no-op for this interceptor. no state is stored. |
| */ |
| @Override |
| public void reset(ConnectionPool parent, PooledConnection con) { |
| // NOOP |
| } |
| |
| } |