Example usage for com.liferay.portal.kernel.diff DiffHtmlUtil diff

Introduction

In this page you can find the example usage for com.liferay.portal.kernel.diff DiffHtmlUtil diff.

Prototype

public static String diff(Reader source, Reader target) throws Exception 

Source Link

Usage

From source file:com.liferay.journal.util.impl.JournalUtil.java

License:Open Source License

public static String diffHtml(long groupId, String articleId, double sourceVersion, double targetVersion,
        String languageId, PortletRequestModel portletRequestModel, ThemeDisplay themeDisplay)
        throws Exception {

    JournalArticle sourceArticle = JournalArticleLocalServiceUtil.getArticle(groupId, articleId, sourceVersion);

    if (!JournalArticleLocalServiceUtil.isRenderable(sourceArticle, portletRequestModel, themeDisplay)) {

        throw new CompareVersionsException(sourceVersion);
    }//from   w  ww  . ja v  a2 s .  c om

    JournalArticleDisplay sourceArticleDisplay = JournalArticleLocalServiceUtil.getArticleDisplay(sourceArticle,
            null, Constants.VIEW, languageId, 1, portletRequestModel, themeDisplay);

    JournalArticle targetArticle = JournalArticleLocalServiceUtil.getArticle(groupId, articleId, targetVersion);

    if (!JournalArticleLocalServiceUtil.isRenderable(targetArticle, portletRequestModel, themeDisplay)) {

        throw new CompareVersionsException(targetVersion);
    }

    JournalArticleDisplay targetArticleDisplay = JournalArticleLocalServiceUtil.getArticleDisplay(targetArticle,
            null, Constants.VIEW, languageId, 1, portletRequestModel, themeDisplay);

    return DiffHtmlUtil.diff(new UnsyncStringReader(sourceArticleDisplay.getContent()),
            new UnsyncStringReader(targetArticleDisplay.getContent()));
}

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From source file:com.liferay.knowledgebase.admin.util.AdminUtil.java

License:Open Source License

public static String getKBArticleDiff(long resourcePrimKey, int sourceVersion, int targetVersion, String param)
        throws Exception {

    if (sourceVersion < KBArticleConstants.DEFAULT_VERSION) {
        sourceVersion = KBArticleConstants.DEFAULT_VERSION;
    }/*from  www  .j  a v a 2  s  .co  m*/

    if (sourceVersion == targetVersion) {
        KBArticle kbArticle = KBArticleLocalServiceUtil.getKBArticle(resourcePrimKey, targetVersion);

        return BeanPropertiesUtil.getString(kbArticle, param);
    }

    KBArticle sourceKBArticle = KBArticleLocalServiceUtil.getKBArticle(resourcePrimKey, sourceVersion);
    KBArticle targetKBArticle = KBArticleLocalServiceUtil.getKBArticle(resourcePrimKey, targetVersion);

    String sourceHtml = BeanPropertiesUtil.getString(sourceKBArticle, param);
    String targetHtml = BeanPropertiesUtil.getString(targetKBArticle, param);

    String diff = DiffHtmlUtil.diff(new UnsyncStringReader(sourceHtml), new UnsyncStringReader(targetHtml));

    Source source = new Source(diff);

    OutputDocument outputDocument = new OutputDocument(source);

    for (Element element : source.getAllElements()) {
        StringBundler sb = new StringBundler(4);

        Attributes attributes = element.getAttributes();

        if (attributes == null) {
            continue;
        }

        Attribute changeTypeAttribute = attributes.get("changeType");

        if (changeTypeAttribute != null) {
            String changeTypeValue = changeTypeAttribute.getValue();

            if (changeTypeValue.contains("diff-added-image")) {
                sb.append("border: 10px solid #CFC; ");
            } else if (changeTypeValue.contains("diff-changed-image")) {
                sb.append("border: 10px solid #C6C6FD; ");
            } else if (changeTypeValue.contains("diff-removed-image")) {
                sb.append("border: 10px solid #FDC6C6; ");
            }
        }

        Attribute classAttribute = attributes.get("class");

        if (classAttribute != null) {
            String classValue = classAttribute.getValue();

            if (classValue.contains("diff-html-added")) {
                sb.append("background-color: #CFC; ");
            } else if (classValue.contains("diff-html-changed")) {
                sb.append("background-color: #C6C6FD; ");
            } else if (classValue.contains("diff-html-removed")) {
                sb.append("background-color: #FDC6C6; ");
                sb.append("text-decoration: line-through; ");
            }
        }

        if (Validator.isNull(sb.toString())) {
            continue;
        }

        Attribute styleAttribute = attributes.get("style");

        if (styleAttribute != null) {
            sb.append(GetterUtil.getString(styleAttribute.getValue()));
        }

        Map<String, String> map = outputDocument.replace(attributes, false);

        map.put("style", sb.toString());
    }

    return outputDocument.toString();
}

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From source file:com.liferay.wiki.engine.impl.WikiEngineRenderer.java

License:Open Source License

public String diffHtml(WikiPage sourcePage, WikiPage targetPage, PortletURL viewPageURL, PortletURL editPageURL,
        String attachmentURLPrefix) throws Exception {

    String sourceContent = StringPool.BLANK;
    String targetContent = StringPool.BLANK;

    if (sourcePage != null) {
        sourceContent = convert(sourcePage, viewPageURL, editPageURL, attachmentURLPrefix);
    }// w ww  .j  av a2s. co  m

    if (targetPage != null) {
        targetContent = convert(targetPage, viewPageURL, editPageURL, attachmentURLPrefix);
    }

    return DiffHtmlUtil.diff(new UnsyncStringReader(sourceContent), new UnsyncStringReader(targetContent));
}

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