| /** |
| * Copyright (C) 2006 Google Inc. |
| * |
| * Licensed 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 com.google.inject; |
| |
| import com.google.inject.spi.Message; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.Formatter; |
| import java.util.List; |
| import java.util.ArrayList; |
| import java.util.Comparator; |
| |
| /** |
| * Thrown when errors occur while creating a {@link Container}. Includes a list |
| * of encountered errors. Typically, a client should catch this exception, log |
| * it, and stop execution. |
| * |
| * @author crazybob@google.com (Bob Lee) |
| */ |
| public class CreationException extends Exception { |
| |
| final List<Message> errorMessages; |
| |
| /** |
| * Constructs a new exception for the given errors. |
| */ |
| public CreationException(Collection<Message> errorMessages) { |
| super(); |
| |
| // Sort the messages by source. |
| this.errorMessages = new ArrayList<Message>(errorMessages); |
| Collections.sort(this.errorMessages, new Comparator<Message>() { |
| public int compare(Message a, Message b) { |
| return a.getSourceString().compareTo(b.getSourceString()); |
| } |
| }); |
| } |
| |
| public String getMessage() { |
| return createErrorMessage(errorMessages); |
| } |
| |
| private static String createErrorMessage(Collection<Message> errorMessages) { |
| Formatter fmt = new Formatter().format("Guice configuration errors:%n%n"); |
| int index = 1; |
| for (Message errorMessage : errorMessages) { |
| fmt.format("%s) Error at %s:%n", index++, errorMessage.getSourceString()) |
| .format(" %s%n%n", errorMessage.getMessage()); |
| } |
| return fmt.format("%s error[s]%n", errorMessages.size()).toString(); |
| } |
| |
| /** |
| * Gets the error messages which resulted in this exception. |
| */ |
| public Collection<Message> getErrorMessages() { |
| return Collections.unmodifiableCollection(errorMessages); |
| } |
| |
| public synchronized Throwable fillInStackTrace() { |
| // We don't care about this stack trace. |
| return null; |
| } |
| } |