| /* |
| * 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.bsf; |
| |
| /** |
| * If something goes wrong while doing some scripting stuff, one of these |
| * is thrown. The integer code indicates what's wrong and the message |
| * may give more details. The reason one exception with multiple meanings |
| * (via the code) [instead of multiple exception types] is used is due to |
| * the interest to keep the run-time size small. |
| * |
| * @author Sanjiva Weerawarana |
| */ |
| public class BSFException extends Exception { |
| public static final int REASON_INVALID_ARGUMENT = 0; |
| public static final int REASON_IO_ERROR = 10; |
| public static final int REASON_UNKNOWN_LANGUAGE = 20; |
| public static final int REASON_EXECUTION_ERROR = 100; |
| public static final int REASON_UNSUPPORTED_FEATURE = 499; |
| public static final int REASON_OTHER_ERROR = 500; |
| |
| int reason; |
| Throwable targetThrowable; |
| |
| public BSFException (final int reason, final String msg) { |
| super (msg); |
| this.reason = reason; |
| } |
| public BSFException (final int reason, final String msg, final Throwable t) { |
| this (reason, msg); |
| targetThrowable = t; |
| } |
| public BSFException (final String msg) { |
| this (REASON_OTHER_ERROR, msg); |
| } |
| public int getReason () { |
| return reason; |
| } |
| public Throwable getTargetException () { |
| return targetThrowable; |
| } |
| public void printStackTrace () { |
| if (targetThrowable != null) { |
| final String msg = getMessage (); |
| |
| if (msg != null && !msg.equals (targetThrowable.getMessage ())) { |
| System.err.print (msg + ": "); |
| } |
| |
| targetThrowable.printStackTrace (); |
| } else { |
| super.printStackTrace (); |
| } |
| } |
| } |