001    /*
002     * Copyright © 2008, 2009 Pedro Agulló Soliveres.
003     * 
004     * This file is part of DirectJNgine.
005     *
006     * DirectJNgine is free software: you can redistribute it and/or modify
007     * it under the terms of the GNU Lesser General Public License as published by
008     * the Free Software Foundation, either version 3 of the License.
009     *
010     * Commercial use is permitted to the extent that the code/component(s)
011     * do NOT become part of another Open Source or Commercially developed
012     * licensed development library or toolkit without explicit permission.
013     *
014     * DirectJNgine is distributed in the hope that it will be useful,
015     * but WITHOUT ANY WARRANTY; without even the implied warranty of
016     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
017     * GNU Lesser General Public License for more details.
018     *
019     * You should have received a copy of the GNU Lesser General Public License
020     * along with DirectJNgine.  If not, see <http://www.gnu.org/licenses/>.
021     * 
022     * This software uses the ExtJs library (http://extjs.com), which is 
023     * distributed under the GPL v3 license (see http://extjs.com/license).
024     */
025    
026    package com.softwarementors.extjs.djn.router.processor.standard;
027    
028    import com.softwarementors.extjs.djn.StringUtils;
029    import com.softwarementors.extjs.djn.api.RegisteredAction;
030    import com.softwarementors.extjs.djn.api.RegisteredStandardMethod;
031    import com.softwarementors.extjs.djn.api.Registry;
032    import com.softwarementors.extjs.djn.config.GlobalConfiguration;
033    import com.softwarementors.extjs.djn.router.dispatcher.Dispatcher;
034    import com.softwarementors.extjs.djn.router.processor.RequestException;
035    import com.softwarementors.extjs.djn.router.processor.RequestProcessorBase;
036    import com.softwarementors.extjs.djn.router.processor.RequestProcessorUtils;
037    
038    public abstract class StandardRequestProcessorBase extends RequestProcessorBase {  
039      protected StandardErrorResponseData createJsonServerErrorResponse(StandardRequestData request, Throwable t) {
040        assert request != null;
041        assert t != null;
042        
043        Throwable reportedException = RequestProcessorUtils.getExceptionToReport(t);
044        String message = RequestProcessorUtils.getExceptionMessage(reportedException);
045        String where = RequestProcessorUtils.getExceptionWhere(reportedException, getDebug());
046        
047        StandardErrorResponseData response = new StandardErrorResponseData( request.getTid(), request.getAction(), request.getMethod());
048        response.setMessageAndWhere( message, where);
049        return response;
050      }
051      
052      protected StandardRequestProcessorBase( Registry registry, Dispatcher dispatcher, GlobalConfiguration globalConfiguration ) {
053        super(registry,dispatcher,globalConfiguration);
054      }
055    
056      protected RegisteredStandardMethod getStandardMethod(String actionName, String methodName) {
057        assert !StringUtils.isEmpty(actionName);
058        assert !StringUtils.isEmpty(methodName);
059    
060        RegisteredAction action = getRegistry().getAction(actionName); 
061        if( action == null ) {
062          throw RequestException.forActionNotFound( actionName );
063        }
064    
065        RegisteredStandardMethod method = action.getStandardMethod(methodName);
066        if( method == null ) {
067          throw RequestException.forActionMethodNotFound( action.getName(), methodName );
068        }
069        return method;
070      }
071    
072      protected Object dispatchStandardMethod( String actionName, String methodName, Object[] parameters ) {
073        assert !StringUtils.isEmpty(actionName);  
074        assert !StringUtils.isEmpty(methodName);
075        assert parameters != null;
076        
077        RegisteredStandardMethod method = getStandardMethod( actionName, methodName);
078        Object result = getDispatcher().dispatch(method, parameters);
079        return result;
080      }
081    
082    }