/*

  * Copyright 2004-2011 the Seasar Foundation and the Others.

  *

  * 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 org.seasar.teeda.core.scope.impl;

 import java.util.Collections;

 import java.util.HashMap;

 import java.util.Map;

 import org.seasar.teeda.core.scope.Scope;

 import org.seasar.teeda.core.scope.ScopeAlreadyRegisteredException;

 import org.seasar.teeda.core.scope.ScopeManager;

 import org.seasar.teeda.core.scope.ScopeTranslator;

 /**

  * @author shot

  */

 public class ScopeManagerImpl implements ScopeManager {

     private ScopeTranslator translator_;

     private static final Map SCOPES = new HashMap();

     private static final Map DEFAULT_SCOPES;

     static {

         SCOPES.put(Scope.APPLICATION.getScopeKey(), Scope.APPLICATION);

         SCOPES.put(Scope.SESSION.getScopeKey(), Scope.SESSION);

         SCOPES.put(Scope.REQUEST.getScopeKey(), Scope.REQUEST);

         SCOPES.put(Scope.NONE.getScopeKey(), Scope.NONE);

         Map map = new HashMap();

         map.put(Scope.APPLICATION.getScopeKey(), Scope.APPLICATION);

         map.put(Scope.SESSION.getScopeKey(), Scope.SESSION);

         map.put(Scope.REQUEST.getScopeKey(), Scope.REQUEST);

         map.put(Scope.NONE.getScopeKey(), Scope.NONE);

         DEFAULT_SCOPES = Collections.unmodifiableMap(map);

     }

     public ScopeManagerImpl() {

     }

     public Scope getScope(String scopeKey) {

         if (scopeKey == null) {

             throw new IllegalArgumentException();

         }

         return (Scope) SCOPES.get(scopeKey);

     }

     public void addScope(Scope scope, Object outerComponentScope)

             throws ScopeAlreadyRegisteredException {

         String scopeKey = scope.getScopeKey();

         if (SCOPES.containsKey(scopeKey)) {

             throw new ScopeAlreadyRegisteredException(new Object[] { scopeKey });

         }

         SCOPES.put(scopeKey, scope);

         if (translator_ != null) {

             translator_.addScope(scope, outerComponentScope);

         }

     }

     public boolean isDefaultScope(Scope scope) {

         return DEFAULT_SCOPES.containsValue(scope);

     }

     public void setScopeTranslator(ScopeTranslator translator) {

         translator_ = translator;

     }

     public ScopeTranslator getScopeTranslator() {

         return translator_;

     }

 }