001/* 002 Licensed to the Apache Software Foundation (ASF) under one 003 or more contributor license agreements. See the NOTICE file 004 distributed with this work for additional information 005 regarding copyright ownership. The ASF licenses this file 006 to you under the Apache License, Version 2.0 (the 007 "License"); you may not use this file except in compliance 008 with the License. You may obtain a copy of the License at 009 010 http://www.apache.org/licenses/LICENSE-2.0 011 012 Unless required by applicable law or agreed to in writing, 013 software distributed under the License is distributed on an 014 "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 015 KIND, either express or implied. See the License for the 016 specific language governing permissions and limitations 017 under the License. 018 */ 019package org.apache.wiki.markdown.extensions.jspwikilinks.postprocessor; 020 021import org.apache.commons.lang.StringUtils; 022import org.apache.wiki.WikiContext; 023import org.apache.wiki.markdown.nodes.JSPWikiLink; 024import org.apache.wiki.parser.LinkParsingOperations; 025import org.apache.wiki.parser.MarkupParser; 026import org.apache.wiki.util.TextUtil; 027 028import com.vladsch.flexmark.ast.Link; 029import com.vladsch.flexmark.parser.PostProcessor; 030import com.vladsch.flexmark.parser.block.NodePostProcessor; 031import com.vladsch.flexmark.util.NodeTracker; 032import com.vladsch.flexmark.util.ast.Document; 033import com.vladsch.flexmark.util.ast.Node; 034 035 036/** 037 * {@link NodePostProcessor} to convert {@link Link}s into {@link JSPWikiLink}s. 038 * 039 * Acts as a factory of {@link NodePostProcessorState}, which are the classes generating the extra markup for each concrete type of link. 040 */ 041public class JSPWikiLinkNodePostProcessor extends NodePostProcessor { 042 043 protected final WikiContext m_context; 044 protected final LinkParsingOperations linkOperations; 045 protected boolean m_useOutlinkImage = true; 046 protected final Document document; 047 048 public JSPWikiLinkNodePostProcessor( final WikiContext m_context, final Document document ) { 049 this.m_context = m_context; 050 this.document = document; 051 linkOperations = new LinkParsingOperations( m_context ); 052 m_useOutlinkImage = m_context.getBooleanWikiProperty( MarkupParser.PROP_USEOUTLINKIMAGE, m_useOutlinkImage ); 053 } 054 055 /** 056 * {@inheritDoc} 057 * 058 * @see PostProcessor#process(NodeTracker, Node) 059 */ 060 @Override 061 public void process( final NodeTracker state, final Node node ) { 062 if( node instanceof Link ) { 063 JSPWikiLink link = replaceLinkWithJSPWikiLink( state, node ); 064 065 final NodePostProcessorState< JSPWikiLink > linkPostProcessor; 066 if( linkOperations.isAccessRule( link.getUrl().toString() ) ) { 067 linkPostProcessor = new AccessRuleLinkNodePostProcessorState( m_context ); 068 } else if( linkOperations.isMetadata( link.getUrl().toString() ) ) { 069 linkPostProcessor = new MetadataLinkNodePostProcessorState( m_context ); 070 } else if( linkOperations.isPluginLink( link.getUrl().toString() ) ) { 071 linkPostProcessor = new PluginLinkNodePostProcessorState( m_context ); 072 } else if( linkOperations.isVariableLink( link.getUrl().toString() ) ) { 073 linkPostProcessor = new VariableLinkNodePostProcessorState( m_context ); 074 } else if( linkOperations.isExternalLink( link.getUrl().toString() ) ) { 075 linkPostProcessor = new ExternalLinkNodePostProcessorState( m_context ); 076 } else if( linkOperations.isInterWikiLink( link.getUrl().toString() ) ) { 077 linkPostProcessor = new InterWikiLinkNodePostProcessorState( m_context, document ); 078 } else if( StringUtils.startsWith( link.getUrl().toString(), "#" ) ) { 079 linkPostProcessor = new LocalFootnoteLinkNodePostProcessorState( m_context ); 080 } else if( TextUtil.isNumber( link.getUrl().toString() ) ) { 081 linkPostProcessor = new LocalFootnoteRefLinkNodePostProcessorState( m_context ); 082 } else { 083 linkPostProcessor = new LocalLinkNodePostProcessorState( m_context ); 084 } 085 linkPostProcessor.process( state, link ); 086 } 087 } 088 089 JSPWikiLink replaceLinkWithJSPWikiLink( final NodeTracker state, final Node node ) { 090 JSPWikiLink link = new JSPWikiLink( ( Link )node ); 091 Node previous = node.getPrevious(); 092 Node parent = node.getParent(); 093 094 link.takeChildren( node ); 095 node.unlink(); 096 097 if( previous != null ) { 098 previous.insertAfter( link ); 099 } else { 100 parent.appendChild( link ); 101 } 102 103 state.nodeRemoved( node ); 104 state.nodeAddedWithChildren( link ); 105 return link; 106 } 107 108}