1 /** 2 * Copyright (C) 2006 Google Inc. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.google.inject; 18 19 import static com.google.common.base.Preconditions.checkArgument; 20 21 import com.google.common.collect.ImmutableSet; 22 import com.google.inject.internal.Errors; 23 import com.google.inject.spi.Message; 24 25 import java.util.Collection; 26 27 /** 28 * Thrown when errors occur while creating a {@link Injector}. Includes a list of encountered 29 * errors. Clients should catch this exception, log it, and stop execution. 30 * 31 * @author crazybob (at) google.com (Bob Lee) 32 */ 33 public class CreationException extends RuntimeException { 34 35 private final ImmutableSet<Message> messages; 36 37 /** Creates a CreationException containing {@code messages}. */ 38 public CreationException(Collection<Message> messages) { 39 this.messages = ImmutableSet.copyOf(messages); 40 checkArgument(!this.messages.isEmpty()); 41 initCause(Errors.getOnlyCause(this.messages)); 42 } 43 44 /** Returns messages for the errors that caused this exception. */ 45 public Collection<Message> getErrorMessages() { 46 return messages; 47 } 48 49 @Override public String getMessage() { 50 return Errors.format("Unable to create injector, see the following errors", messages); 51 } 52 53 private static final long serialVersionUID = 0; 54 } 55
