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 aQute.bnd.annotation.ProviderType;
018    
019    import com.liferay.portal.kernel.util.OrderByComparator;
020    import com.liferay.portlet.asset.model.AssetTag;
021    
022    /**
023     * @author Miguel Pastor
024     */
025    @ProviderType
026    public class AssetTagCountComparator extends OrderByComparator<AssetTag> {
027    
028            public static final String ORDER_BY_ASC = "AssetTag.assetCount ASC";
029    
030            public static final String ORDER_BY_DESC = "AssetTag.assetCount DESC";
031    
032            public static final String[] ORDER_BY_FIELDS = {"assetCount"};
033    
034            public AssetTagCountComparator() {
035                    this(false);
036            }
037    
038            public AssetTagCountComparator(boolean ascending) {
039                    _ascending = ascending;
040            }
041    
042            @Override
043            public int compare(AssetTag assetTag1, AssetTag assetTag2) {
044                    int value = 0;
045    
046                    if (assetTag1.getAssetCount() < assetTag2.getAssetCount()) {
047                            value = -1;
048                    }
049                    else if (assetTag1.getAssetCount() > assetTag2.getAssetCount()) {
050                            value = 1;
051                    }
052    
053                    if (_ascending) {
054                            return value;
055                    }
056                    else {
057                            return -value;
058                    }
059            }
060    
061            @Override
062            public String getOrderBy() {
063                    if (_ascending) {
064                            return ORDER_BY_ASC;
065                    }
066                    else {
067                            return ORDER_BY_DESC;
068                    }
069            }
070    
071            @Override
072            public String[] getOrderByFields() {
073                    return ORDER_BY_FIELDS;
074            }
075    
076            @Override
077            public boolean isAscending() {
078                    return _ascending;
079            }
080    
081            private final boolean _ascending;
082    
083    }