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.api;
027    
028    import java.lang.reflect.Method;
029    import java.util.Map;
030    
031    import com.google.gson.JsonArray;
032    import com.softwarementors.extjs.djn.StringUtils;
033    
034    public class RegisteredStandardMethod extends RegisteredMethod {
035      private boolean formHandler;
036      private boolean handleParametersAsJsonArray;
037      
038      /* package */ RegisteredStandardMethod( RegisteredAction action, String name, Method method, boolean formHandler) {
039        super( action, method, name );
040        assert !StringUtils.isEmpty(name);
041    
042        this.formHandler = formHandler;
043        this.handleParametersAsJsonArray = !formHandler && method.getParameterTypes().length == 1 && method.getParameterTypes()[0].equals( JsonArray.class);
044        assert !this.formHandler || isValidFormHandlingMethod(method);
045        
046        assert !action.hasStandardMethod(this.getName());
047        action.addStandardMethod(this);
048      }
049      
050      public static boolean isValidFormHandlingMethod( Method method ) {
051        assert method != null;
052        
053        return method.getParameterTypes().length == 2 && method.getParameterTypes()[0].equals( Map.class) || !method.getParameterTypes()[1].equals( Map.class);
054      }
055      
056      public boolean isFormHandler() {
057        return this.formHandler;
058      }
059    
060      public int getClientParameterCount() {
061        // If this is a form handler, then the client must pass just one parameter
062        if( isFormHandler() ) {
063          return 1;
064        }
065        return getParameterCount();
066      }
067    
068      public boolean getHandleParametersAsJsonArray() {
069        return this.handleParametersAsJsonArray;
070      }
071    
072      @Override
073      public RegisteredMethodType getType() {
074        return RegisteredMethodType.STANDARD;
075      }  
076    }