| /* |
| * 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.tools.ant; |
| |
| import java.io.PrintStream; |
| import java.io.PrintWriter; |
| |
| /** |
| * Signals an error condition during a build |
| */ |
| public class BuildException extends RuntimeException { |
| |
| private static final long serialVersionUID = -5419014565354664240L; |
| |
| /** Exception that might have caused this one. */ |
| private Throwable cause; |
| |
| /** Location in the build file where the exception occurred */ |
| private Location location = Location.UNKNOWN_LOCATION; |
| |
| /** |
| * Constructs a build exception with no descriptive information. |
| */ |
| public BuildException() { |
| super(); |
| } |
| |
| /** |
| * Constructs an exception with the given descriptive message. |
| * |
| * @param message A description of or information about the exception. |
| * Should not be <code>null</code>. |
| */ |
| public BuildException(String message) { |
| super(message); |
| } |
| |
| /** |
| * Constructs an exception with the given message and exception as |
| * a root cause. |
| * |
| * @param message A description of or information about the exception. |
| * Should not be <code>null</code> unless a cause is specified. |
| * @param cause The exception that might have caused this one. |
| * May be <code>null</code>. |
| */ |
| public BuildException(String message, Throwable cause) { |
| super(message); |
| this.cause = cause; |
| } |
| |
| /** |
| * Constructs an exception with the given message and exception as |
| * a root cause and a location in a file. |
| * |
| * @param msg A description of or information about the exception. |
| * Should not be <code>null</code> unless a cause is specified. |
| * @param cause The exception that might have caused this one. |
| * May be <code>null</code>. |
| * @param location The location in the project file where the error |
| * occurred. Must not be <code>null</code>. |
| */ |
| public BuildException(String msg, Throwable cause, Location location) { |
| this(msg, cause); |
| this.location = location; |
| } |
| |
| /** |
| * Constructs an exception with the given exception as a root cause. |
| * |
| * @param cause The exception that might have caused this one. |
| * Should not be <code>null</code>. |
| */ |
| public BuildException(Throwable cause) { |
| super(cause.toString()); |
| this.cause = cause; |
| } |
| |
| /** |
| * Constructs an exception with the given descriptive message and a |
| * location in a file. |
| * |
| * @param message A description of or information about the exception. |
| * Should not be <code>null</code>. |
| * @param location The location in the project file where the error |
| * occurred. Must not be <code>null</code>. |
| */ |
| public BuildException(String message, Location location) { |
| super(message); |
| this.location = location; |
| } |
| |
| /** |
| * Constructs an exception with the given exception as |
| * a root cause and a location in a file. |
| * |
| * @param cause The exception that might have caused this one. |
| * Should not be <code>null</code>. |
| * @param location The location in the project file where the error |
| * occurred. Must not be <code>null</code>. |
| */ |
| public BuildException(Throwable cause, Location location) { |
| this(cause); |
| this.location = location; |
| } |
| |
| /** |
| * Returns the nested exception, if any. |
| * |
| * @return the nested exception, or <code>null</code> if no |
| * exception is associated with this one |
| */ |
| public Throwable getException() { |
| return cause; |
| } |
| |
| /** |
| * Returns the nested exception, if any. |
| * |
| * @return the nested exception, or <code>null</code> if no |
| * exception is associated with this one |
| */ |
| public Throwable getCause() { |
| return getException(); |
| } |
| |
| /** |
| * Returns the location of the error and the error message. |
| * |
| * @return the location of the error and the error message |
| */ |
| public String toString() { |
| return location.toString() + getMessage(); |
| } |
| |
| /** |
| * Sets the file location where the error occurred. |
| * |
| * @param location The file location where the error occurred. |
| * Must not be <code>null</code>. |
| */ |
| public void setLocation(Location location) { |
| this.location = location; |
| } |
| |
| /** |
| * Returns the file location where the error occurred. |
| * |
| * @return the file location where the error occurred. |
| */ |
| public Location getLocation() { |
| return location; |
| } |
| |
| /** |
| * Prints the stack trace for this exception and any |
| * nested exception to <code>System.err</code>. |
| */ |
| public void printStackTrace() { |
| printStackTrace(System.err); |
| } |
| |
| /** |
| * Prints the stack trace of this exception and any nested |
| * exception to the specified PrintStream. |
| * |
| * @param ps The PrintStream to print the stack trace to. |
| * Must not be <code>null</code>. |
| */ |
| public void printStackTrace(PrintStream ps) { |
| synchronized (ps) { |
| super.printStackTrace(ps); |
| if (cause != null) { |
| ps.println("--- Nested Exception ---"); |
| cause.printStackTrace(ps); |
| } |
| } |
| } |
| |
| /** |
| * Prints the stack trace of this exception and any nested |
| * exception to the specified PrintWriter. |
| * |
| * @param pw The PrintWriter to print the stack trace to. |
| * Must not be <code>null</code>. |
| */ |
| public void printStackTrace(PrintWriter pw) { |
| synchronized (pw) { |
| super.printStackTrace(pw); |
| if (cause != null) { |
| pw.println("--- Nested Exception ---"); |
| cause.printStackTrace(pw); |
| } |
| } |
| } |
| } |