001    /*
002     * Copyright (C) 2012 eXo Platform SAS.
003     *
004     * This is free software; you can redistribute it and/or modify it
005     * under the terms of the GNU Lesser General Public License as
006     * published by the Free Software Foundation; either version 2.1 of
007     * the License, or (at your option) any later version.
008     *
009     * This software is distributed in the hope that it will be useful,
010     * but WITHOUT ANY WARRANTY; without even the implied warranty of
011     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
012     * Lesser General Public License for more details.
013     *
014     * You should have received a copy of the GNU Lesser General Public
015     * License along with this software; if not, write to the Free
016     * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
017     * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
018     */
019    
020    package org.crsh.shell.impl.command;
021    
022    import groovy.lang.Script;
023    import org.crsh.plugin.PluginContext;
024    import org.crsh.plugin.ResourceKind;
025    import org.crsh.util.TimestampedObject;
026    import org.crsh.vfs.Resource;
027    
028    import java.util.Map;
029    import java.util.concurrent.ConcurrentHashMap;
030    
031    public class ClassManager<T> extends AbstractClassManager<T> {
032    
033      /** . */
034      private final Map<String, TimestampedObject<Class<? extends T>>> classes = new ConcurrentHashMap<String, TimestampedObject<Class<? extends T>>>();
035    
036      /** . */
037      private final PluginContext context;
038    
039      /** . */
040      private final ResourceKind kind;
041    
042      public ClassManager(PluginContext context, ResourceKind kind, Class<T> baseClass, Class<? extends Script> baseScriptClass) {
043        super(context, baseClass, baseScriptClass);
044    
045        //
046        this.context = context;
047        this.kind = kind;
048      }
049    
050      @Override
051      protected TimestampedObject<Class<? extends T>> loadClass(String name) {
052        return classes.get(name);
053      }
054    
055      @Override
056      protected void saveClass(String name, TimestampedObject<Class<? extends T>> clazz) {
057        classes.put(name, clazz);
058      }
059    
060      @Override
061      protected Resource getResource(String name) {
062        return context.loadResource(name, kind);
063      }
064    }