| /* |
| * 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.name; |
| |
| import com.google.inject.Binder; |
| import com.google.inject.Key; |
| import java.util.Enumeration; |
| import java.util.Map; |
| import java.util.Properties; |
| |
| /** |
| * Utility methods for use with {@code @}{@link Named}. |
| * |
| * @author crazybob@google.com (Bob Lee) |
| */ |
| public class Names { |
| |
| private Names() {} |
| |
| /** Creates a {@link Named} annotation with {@code name} as the value. */ |
| public static Named named(String name) { |
| return new NamedImpl(name); |
| } |
| |
| /** Creates a constant binding to {@code @Named(key)} for each entry in {@code properties}. */ |
| public static void bindProperties(Binder binder, Map<String, String> properties) { |
| binder = binder.skipSources(Names.class); |
| for (Map.Entry<String, String> entry : properties.entrySet()) { |
| String key = entry.getKey(); |
| String value = entry.getValue(); |
| binder.bind(Key.get(String.class, new NamedImpl(key))).toInstance(value); |
| } |
| } |
| |
| /** |
| * Creates a constant binding to {@code @Named(key)} for each property. This method binds all |
| * properties including those inherited from {@link Properties#defaults defaults}. |
| */ |
| public static void bindProperties(Binder binder, Properties properties) { |
| binder = binder.skipSources(Names.class); |
| |
| // use enumeration to include the default properties |
| for (Enumeration<?> e = properties.propertyNames(); e.hasMoreElements(); ) { |
| String propertyName = (String) e.nextElement(); |
| String value = properties.getProperty(propertyName); |
| binder.bind(Key.get(String.class, new NamedImpl(propertyName))).toInstance(value); |
| } |
| } |
| } |