com.liferay.samplehibernate.FoodItemComponentImpl.java Source code

Introduction

Here is the source code for com.liferay.samplehibernate.FoodItemComponentImpl.java

Source

/**
 * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library 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 Lesser General Public License for more
 * details.
 */

package com.liferay.samplehibernate;

import com.liferay.portal.kernel.log.Log;
import com.liferay.portal.kernel.log.LogFactoryUtil;
import com.liferay.portal.kernel.util.ParamUtil;
import com.liferay.portal.kernel.util.Validator;
import com.liferay.portal.kernel.xml.Document;
import com.liferay.portal.kernel.xml.Element;
import com.liferay.portal.kernel.xml.SAXReaderUtil;
import com.liferay.samplehibernate.model.FoodItem;
import com.liferay.samplehibernate.util.FoodItemUtil;
import com.liferay.util.xml.BeanToXMLUtil;

import java.util.ArrayList;
import java.util.List;

import javax.servlet.http.HttpServletRequest;

/**
 * @author Charles May
 */
public class FoodItemComponentImpl {

    public String getFoodItemXml(long foodItemId) throws Exception {
        List foodItems = null;

        if (foodItemId > 0) {
            FoodItem foodItem = FoodItemUtil.getFoodItem(foodItemId);

            if (foodItem != null) {
                foodItems = new ArrayList();

                foodItems.add(foodItem);
            }
        } else {
            foodItems = FoodItemUtil.getFoodItems();
        }

        return getXml(foodItems);
    }

    public String getXml(List list) {
        Document doc = SAXReaderUtil.createDocument();

        Element root = doc.addElement("result");

        for (Object obj : list) {
            BeanToXMLUtil.addBean(obj, root);
        }

        return doc.asXML();
    }

    public String process(HttpServletRequest req) {
        String result = null;

        try {
            String cmd = ParamUtil.getString(req, "cmd");

            if (cmd.equals("getFoodItemXml")) {
                long foodItemId = ParamUtil.getLong(req, "foodItemId", 0);

                result = getFoodItemXml(foodItemId);
            }
        } catch (Exception e) {
            _log.error(e, e);
        }

        if (Validator.isNull(result)) {
            result = "<result />";
        }

        return result;
    }

    private static Log _log = LogFactoryUtil.getLog(FoodItemComponentImpl.class);

}