| /* |
| * 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.commons.exec.util; |
| |
| /** |
| * Provides debugging support. |
| * |
| */ |
| public class DebugUtils |
| { |
| /** |
| * System property to determine how to handle exceptions. When |
| * set to "false" we rethrow the otherwise silently catched |
| * exceptions found in the original code. The default value |
| * is "true" |
| */ |
| public static final String COMMONS_EXEC_LENIENT = "org.apache.commons.exec.lenient"; |
| |
| /** |
| * System property to determine how to dump an exception. When |
| * set to "true" we print any exception to stderr. The default |
| * value is "false" |
| */ |
| public static final String COMMONS_EXEC_DEBUG = "org.apache.commons.exec.debug"; |
| |
| /** |
| * Handles an exception based on the system properties. |
| * |
| * @param msg message describing the problem |
| * @param e an exception being handled |
| */ |
| public static void handleException(final String msg, final Exception e) { |
| |
| if (isDebugEnabled()) { |
| System.err.println(msg); |
| e.printStackTrace(); |
| } |
| |
| if (!isLenientEnabled()) { |
| if (e instanceof RuntimeException) { |
| throw (RuntimeException) e; |
| } |
| // can't pass root cause since the constructor is not available on JDK 1.3 |
| throw new RuntimeException(e.getMessage()); |
| } |
| } |
| |
| /** |
| * Determines if debugging is enabled based on the |
| * system property "COMMONS_EXEC_DEBUG". |
| * |
| * @return true if debug mode is enabled |
| */ |
| public static boolean isDebugEnabled() { |
| final String debug = System.getProperty(COMMONS_EXEC_DEBUG, Boolean.FALSE.toString()); |
| return Boolean.TRUE.toString().equalsIgnoreCase(debug); |
| } |
| |
| /** |
| * Determines if lenient mode is enabled. |
| * |
| * @return true if lenient mode is enabled |
| */ |
| public static boolean isLenientEnabled() { |
| final String lenient = System.getProperty(COMMONS_EXEC_LENIENT, Boolean.TRUE.toString()); |
| return Boolean.TRUE.toString().equalsIgnoreCase(lenient); |
| } |
| |
| } |