/*
* Copyright (C) 2003-2011 eXo Platform SAS.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.exoplatform.wiki.rendering.converter;
import java.io.StringReader;
import java.util.List;
import java.util.Map;
import org.apache.commons.lang.StringUtils;
import org.xwiki.component.annotation.Component;
import org.xwiki.component.annotation.Requirement;
import org.xwiki.component.manager.ComponentLookupException;
import org.xwiki.component.manager.ComponentManager;
import org.xwiki.rendering.block.Block;
import org.xwiki.rendering.block.FormatBlock;
import org.xwiki.rendering.block.MacroBlock;
import org.xwiki.rendering.block.ParagraphBlock;
import org.xwiki.rendering.block.XDOM;
import org.xwiki.rendering.converter.ConversionException;
import org.xwiki.rendering.listener.Format;
import org.xwiki.rendering.parser.ParseException;
import org.xwiki.rendering.parser.Parser;
import org.xwiki.rendering.syntax.Syntax;
import org.xwiki.rendering.util.ParserUtils;
/**
* Created by The eXo Platform SAS
* Author : Lai Trung Hieu
* hieult@exoplatform.com
* Jul 15, 2011
*/
@Component("confluence/1.0")
public class ConfluenceBlockConverter implements BlockConverter {
/**
* Used to get the current syntax parser.
*/
@Requirement
private ComponentManager componentManager;
@Override
public void convert(XDOM xdom) throws ConversionException {
List<MacroBlock> blocks = xdom.getChildrenByType(MacroBlock.class, true);
for (MacroBlock block : blocks) {
transformDivMacro(block);
transformSpanMacro(block);
}
}
private void transformSpanMacro(MacroBlock block) throws ConversionException {
if (block.getId().equals("span")) {
Block parent = block.getParent();
Map<String, String> params = block.getParameters();
String content = block.getContent().replaceAll("\\{span\\}", StringUtils.EMPTY);
XDOM xdom = parse(content);
(new ParserUtils()).removeTopLevelParagraph((xdom.getChildren()));
FormatBlock newBlock = new FormatBlock(xdom.getChildren(), Format.NONE, params);
parent.replaceChild(newBlock, block);
}
}
private void transformDivMacro(MacroBlock block) throws ConversionException{
if (block.getId().equals("div")) {
Block parent = block.getParent();
Map<String, String> params = block.getParameters();
XDOM xdom = parse(block.getContent());
List<MacroBlock> children = xdom.getChildrenByType(MacroBlock.class, true);
for (MacroBlock child : children) {
transformSpanMacro(child);
}
(new ParserUtils()).removeTopLevelParagraph(xdom.getChildren());
ParagraphBlock newBlock = new ParagraphBlock(xdom.getChildren(), params);
parent.replaceChild(newBlock, block);
}
}
private XDOM parse(String content) throws ConversionException {
try {
Parser parser = componentManager.lookup(Parser.class, Syntax.CONFLUENCE_1_0.toIdString());
return parser.parse(new StringReader(content));
} catch (ComponentLookupException e) {
throw new ConversionException("Failed to locate Parser for syntax [Confluence 1.0]", e);
} catch (ParseException e) {
throw new ConversionException("Failed to parse input source", e);
}
}
}