001    /**
002     * Copyright (c) 2000-2013 Liferay, Inc. All rights reserved.
003     *
004     * The contents of this file are subject to the terms of the Liferay Enterprise
005     * Subscription License ("License"). You may not use this file except in
006     * compliance with the License. You can obtain a copy of the License by
007     * contacting Liferay, Inc. See the License for the specific language governing
008     * permissions and limitations under the License, including but not limited to
009     * distribution rights of the Software.
010     *
011     *
012     *
013     */
014    
015    package com.liferay.portal.kernel.util;
016    
017    import com.liferay.portal.kernel.security.pacl.permission.PortalRuntimePermission;
018    
019    import java.io.Reader;
020    
021    /**
022     * <p>
023     * This class can compare two different versions of HTML code. It detects
024     * changes to an entire HTML page such as removal or addition of characters or
025     * images.
026     * </p>
027     *
028     * @author Julio Camarero
029     */
030    public class DiffHtmlUtil {
031    
032            public static String diff(Reader source, Reader target) throws Exception {
033                    return getDiffHtml().diff(source, target);
034            }
035    
036            public static DiffHtml getDiffHtml() {
037                    PortalRuntimePermission.checkGetBeanProperty(DiffHtmlUtil.class);
038    
039                    return _diffHtml;
040            }
041    
042            public void setDiffHtml(DiffHtml diffHtml) {
043                    PortalRuntimePermission.checkSetBeanProperty(getClass());
044    
045                    _diffHtml = diffHtml;
046            }
047    
048            private static DiffHtml _diffHtml;
049    
050    }