/**
* Copyright (c) 2000-present Liferay, Inc. All rights reserved.
*
* This library 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 2.1 of the License, or (at your option)
* any later version.
*
* This library 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.
*/
package com.liferay.wiki.engine.creole.internal;
import com.liferay.portal.kernel.exception.SystemException;
import com.liferay.portal.kernel.log.Log;
import com.liferay.portal.kernel.log.LogFactoryUtil;
import com.liferay.portal.kernel.util.AggregateResourceBundleLoader;
import com.liferay.portal.kernel.util.ResourceBundleLoader;
import com.liferay.portal.kernel.util.StringUtil;
import com.liferay.portal.language.LanguageResources;
import com.liferay.wiki.configuration.WikiGroupServiceConfiguration;
import com.liferay.wiki.engine.WikiEngine;
import com.liferay.wiki.engine.creole.internal.antlrwiki.translator.XhtmlTranslator;
import com.liferay.wiki.engine.creole.internal.parser.ast.ASTNode;
import com.liferay.wiki.engine.creole.internal.parser.ast.WikiPageNode;
import com.liferay.wiki.engine.creole.internal.parser.ast.link.LinkNode;
import com.liferay.wiki.engine.creole.internal.parser.parser.Creole10Lexer;
import com.liferay.wiki.engine.creole.internal.parser.parser.Creole10Parser;
import com.liferay.wiki.engine.creole.internal.parser.visitor.LinkNodeCollectorVisitor;
import com.liferay.wiki.engine.input.editor.common.BaseInputEditorWikiEngine;
import com.liferay.wiki.exception.PageContentException;
import com.liferay.wiki.model.WikiPage;
import com.liferay.wiki.service.WikiPageLocalService;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.portlet.PortletURL;
import javax.servlet.ServletContext;
import org.antlr.runtime.ANTLRStringStream;
import org.antlr.runtime.CommonTokenStream;
import org.antlr.runtime.RecognitionException;
import org.osgi.service.component.annotations.Component;
import org.osgi.service.component.annotations.Reference;
/**
* @author Miguel Pastor
*/
@Component(service = WikiEngine.class)
public class CreoleWikiEngine extends BaseInputEditorWikiEngine {
@Override
public String convert(
WikiPage page, PortletURL viewPageURL, PortletURL editPageURL,
String attachmentURLPrefix) {
XhtmlTranslator xhtmlTranslator = new XhtmlTranslator();
return xhtmlTranslator.translate(
page, viewPageURL, editPageURL, attachmentURLPrefix,
parse(page.getContent()));
}
@Override
public String getEditorName() {
return _wikiGroupServiceConfiguration.getCreoleEditor();
}
@Override
public String getFormat() {
return "creole";
}
@Override
public String getHelpURL() {
return "http://www.wikicreole.org/wiki/Creole1.0";
}
@Override
public Map<String, Boolean> getOutgoingLinks(WikiPage page)
throws PageContentException {
Map<String, Boolean> outgoingLinks = new HashMap<>();
LinkNodeCollectorVisitor linkNodeCollectorVisitor =
new LinkNodeCollectorVisitor();
List<ASTNode> astNodes = linkNodeCollectorVisitor.collect(
parse(page.getContent()));
try {
for (ASTNode astNode : astNodes) {
LinkNode linkNode = (LinkNode)astNode;
String title = linkNode.getLink();
boolean existingLink = false;
if (_wikiPageLocalService.getPagesCount(
page.getNodeId(), title, true) > 0) {
existingLink = true;
}
if (existingLink) {
title = StringUtil.toLowerCase(title);
}
outgoingLinks.put(title, existingLink);
}
}
catch (SystemException se) {
throw new PageContentException(se);
}
return outgoingLinks;
}
protected Creole10Parser build(String creoleCode) {
ANTLRStringStream antlrStringStream = new ANTLRStringStream(creoleCode);
Creole10Lexer creole10Lexer = new Creole10Lexer(antlrStringStream);
CommonTokenStream commonTokenStream = new CommonTokenStream(
creole10Lexer);
return new Creole10Parser(commonTokenStream);
}
@Override
protected ServletContext getHelpPageServletContext() {
return _servletContext;
}
@Override
protected ResourceBundleLoader getResourceBundleLoader() {
return _resourceBundleLoader;
}
protected WikiPageNode parse(String creoleCode) {
Creole10Parser creole10Parser = build(creoleCode);
try {
creole10Parser.wikipage();
}
catch (RecognitionException re) {
if (_log.isDebugEnabled()) {
_log.debug("Unable to parse:\n" + creoleCode, re);
for (String error : creole10Parser.getErrors()) {
_log.debug(error);
}
}
}
return creole10Parser.getWikiPageNode();
}
@Reference(
target = "(bundle.symbolic.name=com.liferay.wiki.engine.lang)",
unbind = "-"
)
protected void setResourceBundleLoader(
ResourceBundleLoader resourceBundleLoader) {
_resourceBundleLoader = new AggregateResourceBundleLoader(
resourceBundleLoader, LanguageResources.RESOURCE_BUNDLE_LOADER);
}
@Reference(
target = "(osgi.web.symbolicname=com.liferay.wiki.engine.creole)",
unbind = "-"
)
protected void setServletContext(ServletContext servletContext) {
_servletContext = servletContext;
}
@Reference
protected void setWikiGroupServiceConfiguration(
WikiGroupServiceConfiguration wikiGroupServiceConfiguration) {
_wikiGroupServiceConfiguration = wikiGroupServiceConfiguration;
}
@Reference(unbind = "-")
protected void setWikiPageLocalService(
WikiPageLocalService wikiPageLocalService) {
_wikiPageLocalService = wikiPageLocalService;
}
protected void unsetWikiGroupServiceConfiguration(
WikiGroupServiceConfiguration wikiGroupServiceConfiguration) {
_wikiGroupServiceConfiguration = null;
}
private static final Log _log = LogFactoryUtil.getLog(
CreoleWikiEngine.class);
private ResourceBundleLoader _resourceBundleLoader;
private ServletContext _servletContext;
private WikiGroupServiceConfiguration _wikiGroupServiceConfiguration;
private WikiPageLocalService _wikiPageLocalService;
}