| /* |
| * 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 |
| * |
| * https://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.directory.api.util.exception; |
| |
| |
| import java.io.PrintStream; |
| import java.io.PrintWriter; |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Iterator; |
| |
| |
| /** |
| * This exception is thrown when Base class for nested exceptions. |
| * |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| */ |
| public class MultiException extends Exception |
| { |
| /** The serialVersionUID. */ |
| static final long serialVersionUID = 2889747406899775761L; |
| |
| /** Collection of nested exceptions. */ |
| private final Collection<Throwable> nestedExceptions = new ArrayList<>(); |
| |
| |
| /** |
| * Constructs an Exception without a message. |
| */ |
| public MultiException() |
| { |
| super(); |
| } |
| |
| |
| /** |
| * Constructs an Exception with a detailed message. |
| * |
| * @param message The message associated with the exception. |
| */ |
| public MultiException( String message ) |
| { |
| super( message ); |
| } |
| |
| |
| /** |
| * Lists the nested exceptions that this Exception encapsulates. |
| * |
| * @return an Iterator over the nested exceptions. |
| */ |
| public Iterator<Throwable> listNestedExceptions() |
| { |
| return nestedExceptions.iterator(); |
| } |
| |
| |
| /** |
| * Gets the size of this nested exception which equals the number of |
| * exception nested within. |
| * |
| * @return the size of this nested exception. |
| */ |
| public int size() |
| { |
| return nestedExceptions.size(); |
| } |
| |
| |
| /** |
| * Tests to see if there are any nested exceptions within this |
| * MultiException. |
| * |
| * @return true if no exceptions are nested, false otherwise. |
| */ |
| public boolean isEmpty() |
| { |
| return nestedExceptions.isEmpty(); |
| } |
| |
| |
| /** |
| * Add an exception to this multiexception. |
| * |
| * @param nested exception to add to this MultiException. |
| */ |
| public void addThrowable( Throwable nested ) |
| { |
| nestedExceptions.add( nested ); |
| } |
| |
| |
| // /////////////////////////////////////////// |
| // Overriden Throwable Stack Trace Methods // |
| // /////////////////////////////////////////// |
| |
| /** |
| * Beside printing out the standard stack trace this method prints out the |
| * stack traces of all the nested exceptions. |
| * |
| * @param out PrintWriter to write the nested stack trace to. |
| */ |
| @Override |
| public void printStackTrace( PrintWriter out ) |
| { |
| super.printStackTrace( out ); |
| |
| out.println( "Nested exceptions to follow:\n" ); |
| boolean isFirst = true; |
| |
| for ( Throwable throwable : nestedExceptions ) |
| { |
| if ( isFirst ) |
| { |
| isFirst = false; |
| } |
| else |
| { |
| out.println( "\n\t<<========= Next Nested Exception" + " ========>>\n" ); |
| } |
| |
| throwable.printStackTrace( out ); |
| } |
| |
| out.println( "\n\t<<========= Last Nested Exception" + " ========>>\n" ); |
| } |
| |
| |
| /** |
| * Beside printing out the standard stack trace this method prints out the |
| * stack traces of all the nested exceptions. |
| * |
| * @param out PrintStream to write the nested stack trace to. |
| */ |
| @Override |
| public void printStackTrace( PrintStream out ) |
| { |
| super.printStackTrace( out ); |
| |
| out.println( "Nested exceptions to follow:\n" ); |
| boolean isFirst = true; |
| |
| for ( Throwable throwable : nestedExceptions ) |
| { |
| if ( isFirst ) |
| { |
| isFirst = false; |
| } |
| else |
| { |
| out.println( "\n\t<<========= Next Nested Exception" + " ========>>\n" ); |
| } |
| |
| throwable.printStackTrace( out ); |
| } |
| |
| out.println( "\n\t<<========= Last Nested Exception" + " ========>>\n" ); |
| } |
| |
| |
| /** |
| * Beside printing out the standard stack trace this method prints out the |
| * stack traces of all the nested exceptions using standard error. |
| */ |
| @Override |
| public void printStackTrace() |
| { |
| this.printStackTrace( System.err ); |
| } |
| } |