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 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 General Public License for more details.
018     *
019     * You should have received a copy of the GNU 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 org.apache.log4j.Logger;
032    
033    import com.softwarementors.extjs.djn.StringUtils;
034    import com.softwarementors.extjs.djn.config.ApiConfigurationException;
035    
036    public class RegisteredPollMethod {
037    
038      private static Logger logger = Logger.getLogger( RegisteredMethod.class);
039      
040      private String name;
041      private Method method;
042      private Class<?> owningClass;
043      
044      /* package */ RegisteredPollMethod( String name, Method method, Class<?> owningClass) {
045        assert !StringUtils.isEmpty(name);
046        assert method != null;
047        assert owningClass != null;
048        
049        this.name = name;
050        this.method = method;
051        this.owningClass = owningClass;
052        
053        if( method.getParameterTypes().length != 1 || !method.getParameterTypes()[0].equals( Map.class) ) {
054          ApiConfigurationException ex = ApiConfigurationException.forMethodHasWrongParametersForAPollHandler( this );
055          logger.fatal( ex.getMessage(), ex );
056          throw ex;
057        }
058      }
059      
060      public String getName() {
061        return this.name;
062      }
063    
064      public Method getMethod() {
065        return this.method;
066      }
067    
068      public Class<?>[] getParameterTypes() {
069        return this.method.getParameterTypes();
070      }
071      
072      public int getParameterCount() {
073        return getParameterTypes().length;
074      }
075    
076      public Class<?> getReturnType() {
077        return this.method.getReturnType();
078      }
079      
080      public Class<?> getOwningClass() {
081        return this.owningClass;
082      }
083    }