wamblee.org Git - utils/blob - security/src/main/java/org/wamblee/usermgt/UserAdministrationComponent.java

   1 /*
   2  * Copyright 2008 the original author or authors.
   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 package org.wamblee.usermgt;
  17
  18 import java.io.IOException;
  19
  20 import javax.sql.DataSource;
  21
  22 import org.springframework.orm.hibernate3.HibernateTemplate;
  23 import org.springframework.transaction.PlatformTransactionManager;
  24 import org.wamblee.cache.EhCache;
  25 import org.wamblee.system.adapters.DefaultContainer;
  26 import org.wamblee.system.core.Component;
  27 import org.wamblee.system.core.DefaultProvidedInterface;
  28 import org.wamblee.system.core.DefaultRequiredInterface;
  29 import org.wamblee.system.core.ProvidedInterface;
  30 import org.wamblee.system.core.Scope;
  31 import org.wamblee.usermgt.hibernate.UsermgtHibernateMappingFiles;
  32
  33 public class UserAdministrationComponent extends DefaultContainer {
  34
  35     private ProvidedInterface TRANSACTION_MGR = new DefaultProvidedInterface(
  36             "transactionManager", PlatformTransactionManager.class);
  37     private ProvidedInterface USER_CACHE = new DefaultProvidedInterface(
  38             "userCache", EhCache.class);
  39     private ProvidedInterface HIBERNATE_TEMPLATE = new DefaultProvidedInterface(
  40             "hibernateTemplate", HibernateTemplate.class);
  41     private ProvidedInterface USER_MGT = new DefaultProvidedInterface(
  42             "usermgt", UserAdministration.class);
  43
  44     private Component<?> _hibernate;
  45     private Component<?> _repository;
  46     private Component<?> _usermgt;
  47
  48     private boolean _exposeInternals;
  49
  50     public UserAdministrationComponent(String aName, boolean aExposeInternals)
  51             throws IOException {
  52         super(aName);
  53         _exposeInternals = aExposeInternals;
  54
  55         addComponent("mappingFiles", new UsermgtHibernateMappingFiles());
  56
  57         _hibernate = new HibernateComponent("hibernate");
  58         addComponent(_hibernate);
  59
  60         _repository = new UserGroupRepositoryComponent("usersgroups");
  61         addComponent(_repository);
  62
  63         _usermgt = new UserAdministrationLightComponent("usermgtlight");
  64         addComponent(_usermgt);
  65
  66         addRequiredInterface(new DefaultRequiredInterface("datasource",
  67                 DataSource.class));
  68
  69         if (aExposeInternals) {
  70             addProvidedInterface(TRANSACTION_MGR);
  71             addProvidedInterface(USER_CACHE);
  72             addProvidedInterface(HIBERNATE_TEMPLATE);
  73         }
  74         addProvidedInterface(USER_MGT);
  75     }
  76
  77     @Override
  78     protected Scope doStart(Scope aExternalScope) {
  79
  80         Scope scope = super.doStart(aExternalScope);
  81         if (_exposeInternals) {
  82             addInterface(TRANSACTION_MGR, getInterfaceImplementation(
  83                     TRANSACTION_MGR, _hibernate, scope), aExternalScope);
  84             addInterface(USER_CACHE, getInterfaceImplementation(USER_CACHE,
  85                     _repository, scope), aExternalScope);
  86             addInterface(HIBERNATE_TEMPLATE, getInterfaceImplementation(
  87                     HIBERNATE_TEMPLATE, _hibernate, scope), aExternalScope);
  88         }
  89         addInterface(USER_MGT, getInterfaceImplementation(USER_MGT, _usermgt,
  90                 scope), aExternalScope);
  91
  92         return scope;
  93     }
  94
  95     private Object getInterfaceImplementation(ProvidedInterface aInterface,
  96             Component aSource, Scope aScope) {
  97         for (ProvidedInterface provided : aSource.getProvidedInterfaces()) {
  98             if (provided.equals(aInterface)) {
  99                 return aScope
 100                         .getInterfaceImplementation(provided, Object.class);
 101             }
 102         }
 103         throw new IllegalArgumentException("Provided interface '" + aInterface
 104                 + "' not found in component '" + aSource + "'");
 105     }
 106 }