/* ===================================================================
 * RecipeIndexInterceptor.java
 * 
 * Created Sep 27, 2004 7:14:59 PM
 * 
 * Copyright (c) 2004 Matt Magoffin (spamsqr@msqr.us)
 * 
 * This program is free software; you can redistribute it and/or 
 * modify it under the terms of the GNU General Public License as 
 * published by the Free Software Foundation; either version 2 of 
 * the License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful, 
 * but WITHOUT ANY WARRANTY; without even the implied warranty of 
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 
 * General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License 
 * along with this program; if not, write to the Free Software 
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 
 * 02111-1307 USA
 * ===================================================================
 * $Id: RecipeIndexInterceptor.java 39 2009-05-06 03:30:47Z msqr $
 * ===================================================================
 */

package magoffin.matt.ieat.aop;

import java.lang.reflect.Method;

import magoffin.matt.ieat.domain.Recipe;

import org.springframework.aop.AfterReturningAdvice;

/**
 * Interceptor to support automatic indexing of updated Recipe domain 
 * objects.
 * 
 * <p>This interceptor expects a {@link magoffin.matt.ieat.domain.Recipe}
 * domain object to be the <code>returnValue</code> passed to the 
 * {@link #afterReturning(Object, Method, Object[], Object)} method, or 
 * the first <code>Long</code> object found in the <code>args</code>
 * parameter will be treated as the <code>recipeId</code>. 
 * Using the <code>recipeId</code> it will call the 
 * {@link magoffin.matt.ieat.biz.RecipeSearchIndexBiz#indexRecipe(Long)}
 * method to index that recipe.</p>
 * 
 * @see magoffin.matt.ieat.aop.AbstractIndexInterceptor
 * @author Matt Magoffin (spamsqr@msqr.us)
 * @version $Revision: 39 $ $Date: 2009-05-06 15:30:47 +1200 (Wed, 06 May 2009) $
 */
public class RecipeIndexInterceptor extends AbstractIndexInterceptor 
implements AfterReturningAdvice {
	
	/* (non-Javadoc)
	 * @see org.springframework.aop.AfterReturningAdvice#afterReturning(java.lang.Object, java.lang.reflect.Method, java.lang.Object[], java.lang.Object)
	 */
	public void afterReturning(Object returnValue, Method method, Object[] args, Object target) throws Throwable {
		Long recipeId = null;
		
		if ( returnValue instanceof Recipe ) {
			Recipe r = (Recipe)returnValue;
			recipeId = r.getRecipeId();
		} else {
			// check for Inetger recipeId
			for ( int i = 0; i < args.length && recipeId == null; i++ ) {
				if ( args[i] instanceof Long ) {
					recipeId = (Long)args[i];
				}
			}
		}
		if ( recipeId == null ) {
			throw new RuntimeException("Recipe ID not available in method invocation.");
		}
		getRecipeSearchIndexBiz().indexRecipe(recipeId);
	}

}
