| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.apache.cocoon.portal.aspect.impl; |
| |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.apache.avalon.framework.component.Component; |
| import org.apache.avalon.framework.logger.AbstractLogEnabled; |
| import org.apache.avalon.framework.thread.ThreadSafe; |
| import org.apache.cocoon.portal.aspect.AspectDataStore; |
| import org.apache.cocoon.portal.aspect.Aspectalizable; |
| |
| /** |
| * An aspect data store that holds the aspects in memory. |
| * |
| * @author <a href="mailto:cziegeler@s-und-n.de">Carsten Ziegeler</a> |
| * |
| * @version CVS $Id$ |
| */ |
| public class MemoryAspectDataStore |
| extends AbstractLogEnabled |
| implements Component, ThreadSafe, AspectDataStore { |
| |
| protected final Map objectMap = new HashMap(); |
| |
| /** |
| * Get the aspect map for an object |
| */ |
| protected Map getMap(Aspectalizable owner, boolean create) { |
| Map result = (Map)this.objectMap.get(owner); |
| if ( result == null ) { |
| if ( create ) { |
| result = new HashMap(4); |
| this.objectMap.put(owner, result); |
| } else { |
| result = Collections.EMPTY_MAP; |
| } |
| } |
| return result; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.apache.cocoon.portal.aspect.AspectDataStore#getAspectData(org.apache.cocoon.portal.aspect.Aspectalizable, java.lang.String) |
| */ |
| public Object getAspectData(Aspectalizable owner, String aspectName) { |
| return this.getMap(owner, false).get( aspectName ); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.apache.cocoon.portal.aspect.AspectDataStore#setAspectData(org.apache.cocoon.portal.aspect.Aspectalizable, java.lang.String, java.lang.Object) |
| */ |
| public void setAspectData(Aspectalizable owner, String aspectName, Object data) { |
| this.getMap(owner, true).put(aspectName, data); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.apache.cocoon.portal.aspect.AspectDataStore#isPersistent() |
| */ |
| public boolean isPersistent() { |
| return false; |
| } |
| |
| } |