org.betaconceptframework.astroboa.commons.comparator.ContentObjectFolderComparator.java Source code

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Here is the source code for org.betaconceptframework.astroboa.commons.comparator.ContentObjectFolderComparator.java

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/*
 * Copyright (C) 2005-2012 BetaCONCEPT Limited
 *
 * This file is part of Astroboa.
 *
 * Astroboa 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 3 of the License, or
 * (at your option) any later version.
 *
 * Astroboa 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.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with Astroboa.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.betaconceptframework.astroboa.commons.comparator;

import java.util.Comparator;
import java.util.Locale;

import org.apache.commons.lang.StringUtils;
import org.betaconceptframework.astroboa.api.model.ContentObjectFolder;
import org.betaconceptframework.astroboa.api.model.ContentObjectFolder.Type;
import org.betaconceptframework.astroboa.util.CmsUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * @author Gregory Chomatas (gchomatas@betaconcept.com)
 * @author Savvas Triantafyllou (striantafyllou@betaconcept.com)
 * 
 */
public class ContentObjectFolderComparator implements Comparator<ContentObjectFolder> {

    private Logger logger = LoggerFactory.getLogger(ContentObjectFolderComparator.class);

    private String locale;

    public ContentObjectFolderComparator(String locale) {
        this.locale = locale;

        if (StringUtils.isBlank(this.locale))
            this.locale = Locale.ENGLISH.toString();

    }

    public int compare(ContentObjectFolder folder1, ContentObjectFolder folder2) {

        if (folder1 == null)
            return -1;

        if (folder2 == null)
            return 1;

        if (folder1.getType() != folder2.getType()) {
            logger.warn("Unable to compare content object folders with different types {} , {}", folder1.getType(),
                    folder2.getType());
            return 0;
        }

        try {

            String folderLabel1 = folder1.getLocalizedLabelForCurrentLocale();
            String folderLabel2 = folder2.getLocalizedLabelForCurrentLocale();

            if (folderLabel1 == null && folderLabel2 == null)
                return 0;

            if (folderLabel1 != null && folderLabel2 == null)
                return 1;

            if (folderLabel1 == null && folderLabel2 != null)
                return -1;

            //Both folders should have the same type
            switch (folder1.getType()) {
            case SECOND:
            case MINUTE:
            case HOUR:
            case DAY:
            case MONTH:
            case YEAR:
                //Labels for MINUTE, HOUR, DAY, MONTH and YEAR are numbers
                Integer folderLabelInt1 = Integer.parseInt(folderLabel1);
                Integer folderLabelInt2 = Integer.parseInt(folderLabel2);

                //If type is YEAR, inverse compare as years must be displayed in descending order
                if (Type.YEAR == folder1.getType())
                    return folderLabelInt2.compareTo(folderLabelInt1);

                return folderLabelInt1.compareTo(folderLabelInt2);

            case CONTENT_TYPE:
                if ("el".equalsIgnoreCase(locale)) {
                    //Filter string to lower case and transforming accented characters to simple ones
                    String lowerCaseGreekFilteredLocalizedLabel0 = CmsUtils.filterGreekCharacters(folderLabel1);
                    String lowerCaseGreekFilteredLocalizedLabel1 = CmsUtils.filterGreekCharacters(folderLabel2);

                    return lowerCaseGreekFilteredLocalizedLabel0.compareTo(lowerCaseGreekFilteredLocalizedLabel1);
                } else
                    return folderLabel1.compareTo(folderLabel2);
            default:
                return 0;
            }

        } catch (Exception e) {
            logger.error("While comparing content object folders ", e);
            return 0;
        }

    }

}