source: extensions/jiwigo-ws-api/src/main/java/fr/mael/jiwigo/dao/CategoryDao.java @ 9430

package fr.mael.jiwigo.dao;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import org.jdom.Document;
import org.jdom.Element;

import fr.mael.jiwigo.om.Category;
import fr.mael.jiwigo.transverse.enumeration.CategoryEnum;
import fr.mael.jiwigo.transverse.enumeration.MethodsEnum;
import fr.mael.jiwigo.transverse.exception.ProxyAuthenticationException;
import fr.mael.jiwigo.transverse.session.SessionManager;
import fr.mael.jiwigo.transverse.util.Tools;

/*
Copyright (c) 2010, Mael
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
 * Redistributions of source code must retain the above copyright
   notice, this list of conditions and the following disclaimer.
 * Redistributions in binary form must reproduce the above copyright
   notice, this list of conditions and the following disclaimer in the
   documentation and/or other materials provided with the distribution.
 * Neither the name of jiwigo nor the
   names of its contributors may be used to endorse or promote products
   derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL Mael BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**

 * Dao for the categories
 * @author mael
 *
 */
public class CategoryDao {
    /**
     * Logger
     */
    public static final org.apache.commons.logging.Log LOG = org.apache.commons.logging.LogFactory
            .getLog(CategoryDao.class);
    /**
     * Instance to use a singleton
     */
    private static CategoryDao instance;

    private SessionManager sessionManager;

    /**
     * Private constructor to use a singleton
     */
    private CategoryDao(SessionManager sessionManager) {
        this.sessionManager = sessionManager;
    }

    /**
     * @return the instance
     */
    public static CategoryDao getInstance(SessionManager sessionManager) {
        if (instance == null) {
            instance = new CategoryDao(sessionManager);
        }
        return instance;
    }

    /**
     * Lists the categories
     * @param recursive true : recursive listing of the categories
     * @return the list of categories
     * @throws IOException
     * @throws ProxyAuthenticationException
     */
    public List<Category> list(boolean recursive) throws IOException, ProxyAuthenticationException {
        Document doc = sessionManager.executeReturnDocument(MethodsEnum.LISTER_CATEGORIES.getLabel(), "recursive",
                String.valueOf(recursive));
        Element element = doc.getRootElement().getChild("categories");
        List<Element> listElement = (List<Element>) element.getChildren("category");
        ArrayList<Category> categories = new ArrayList<Category>();
        for (Element cat : listElement) {
            Category myCat = new Category();
            myCat.setIdentifier(Integer.valueOf(cat.getAttributeValue(CategoryEnum.ID.getLabel())));
            myCat.setUrlCategory(cat.getAttributeValue(CategoryEnum.URL.getLabel()));
            myCat.setNbImages(Integer.valueOf(cat.getAttributeValue(CategoryEnum.NB_IMAGES.getLabel())));
            myCat.setNbTotalImages(Integer.valueOf(cat.getAttributeValue(CategoryEnum.NB_TOTAL_IMAGES.getLabel())));
            myCat.setName(cat.getChildText(CategoryEnum.NAME.getLabel()));
            String catMeres = cat.getChildText(CategoryEnum.CAT_MERES.getLabel());
            ArrayList<Integer> idCategoriesMeres = new ArrayList<Integer>();
            for (String catA : catMeres.split(",")) {
                if (!catA.equals("")) {
                    idCategoriesMeres.add(Integer.valueOf(catA));
                }
            }
            myCat.setIdParentCategories(idCategoriesMeres);
            categories.add(myCat);
        }
        return categories;
    }

    /**
     * Creation of a category
     * @param category the category to create
     * @return true if the category is successfully created
     * @throws ProxyAuthenticationException
     */
    public boolean create(Category category) throws ProxyAuthenticationException {
        try {
            if (category.getDirectParent() != null) {
                return Tools.checkOk(sessionManager.executeReturnDocument(MethodsEnum.AJOUTER_CATEGORIE.getLabel(),
                        "name", category.getName(), "parent", String.valueOf(category.getDirectParent())));
            } else {
                return Tools.checkOk(sessionManager.executeReturnDocument(MethodsEnum.AJOUTER_CATEGORIE.getLabel(),
                        "name", category.getName()));
            }
        } catch (IOException e) {
            LOG.error(Tools.getStackTrace(e));
        }
        return false;
    }

}