| /** |
| * Copyright (C) 2008 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.commands.BindScopeCommand; |
| import com.google.inject.internal.Annotations; |
| import com.google.inject.internal.ErrorHandler; |
| import com.google.inject.internal.ErrorMessages; |
| import static com.google.inject.internal.Objects.nonNull; |
| import com.google.inject.internal.StackTraceElements; |
| |
| import java.lang.annotation.Annotation; |
| import java.util.Map; |
| |
| /** |
| * Handles {@link Binder#bindScope} commands. |
| * |
| * @author crazybob@google.com (Bob Lee) |
| * @author jessewilson@google.com (Jesse Wilson) |
| */ |
| class ScopesCommandProcessor extends CommandProcessor { |
| |
| private final Map<Class<? extends Annotation>, Scope> scopes; |
| |
| ScopesCommandProcessor(ErrorHandler errorHandler, |
| Map<Class<? extends Annotation>, Scope> scopes) { |
| super(errorHandler); |
| this.scopes = scopes; |
| } |
| |
| @Override public Boolean visitBindScope(BindScopeCommand command) { |
| Scope scope = command.getScope(); |
| Class<? extends Annotation> annotationType = command.getAnnotationType(); |
| |
| if (!Scopes.isScopeAnnotation(annotationType)) { |
| addError(StackTraceElements.forType(annotationType), |
| ErrorMessages.MISSING_SCOPE_ANNOTATION); |
| // Go ahead and bind anyway so we don't get collateral errors. |
| } |
| |
| if (!Annotations.isRetainedAtRuntime(annotationType)) { |
| addError(StackTraceElements.forType(annotationType), |
| ErrorMessages.MISSING_RUNTIME_RETENTION, command.getSource()); |
| // Go ahead and bind anyway so we don't get collateral errors. |
| } |
| |
| Scope existing = scopes.get(nonNull(annotationType, "annotation type")); |
| if (existing != null) { |
| addError(command.getSource(), ErrorMessages.DUPLICATE_SCOPES, existing, |
| annotationType, scope); |
| } else { |
| scopes.put(annotationType, nonNull(scope, "scope")); |
| } |
| |
| return true; |
| } |
| } |