001    /**
002     * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portlet.asset.util.comparator;
016    
017    import com.liferay.portal.kernel.util.OrderByComparator;
018    import com.liferay.portlet.asset.model.AssetTag;
019    
020    /**
021     * @author Eudaldo Alonso
022     */
023    public class AssetTagAssetCountComparator extends OrderByComparator<AssetTag> {
024    
025            public static final String ORDER_BY_ASC =
026                    "AssetTag.assetCount ASC, AssetTag.name ASC";
027    
028            public static final String ORDER_BY_DESC =
029                    "AssetTag.assetCount DESC, AssetTag.name ASC";
030    
031            public static final String[] ORDER_BY_FIELDS = {"assetCount"};
032    
033            public AssetTagAssetCountComparator() {
034                    this(true);
035            }
036    
037            public AssetTagAssetCountComparator(boolean ascending) {
038                    _ascending = ascending;
039            }
040    
041            @Override
042            public int compare(AssetTag assetTag1, AssetTag assetTag2) {
043                    int assetCount1 = assetTag1.getAssetCount();
044                    int assetCount2 = assetTag2.getAssetCount();
045    
046                    int value = 0;
047    
048                    if (assetCount1 < assetCount2) {
049                            value = -1;
050                    }
051                    else if (assetCount1 > assetCount2) {
052                            value = 1;
053                    }
054                    else {
055                            String name1 = assetTag1.getName();
056                            String name2 = assetTag2.getName();
057    
058                            value = name1.compareToIgnoreCase(name2);
059                    }
060    
061                    if (_ascending) {
062                            return value;
063                    }
064                    else {
065                            return -value;
066                    }
067            }
068    
069            @Override
070            public String getOrderBy() {
071                    if (_ascending) {
072                            return ORDER_BY_ASC;
073                    }
074                    else {
075                            return ORDER_BY_DESC;
076                    }
077            }
078    
079            @Override
080            public String[] getOrderByFields() {
081                    return ORDER_BY_FIELDS;
082            }
083    
084            @Override
085            public boolean isAscending() {
086                    return _ascending;
087            }
088    
089            private final boolean _ascending;
090    
091    }