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 com.vladsch.flexmark.util.ast.NodeTracker;
022import org.apache.log4j.Logger;
023import org.apache.wiki.WikiContext;
024import org.apache.wiki.i18n.InternationalizationManager;
025import org.apache.wiki.markdown.nodes.JSPWikiLink;
026import org.apache.wiki.preferences.Preferences;
027import org.apache.wiki.render.RenderingManager;
028
029import java.text.MessageFormat;
030import java.util.ResourceBundle;
031
032
033/**
034 * {@link NodePostProcessorState} which further post processes metadata links.
035 */
036public class MetadataLinkNodePostProcessorState implements NodePostProcessorState< JSPWikiLink > {
037
038    private static final Logger LOG = Logger.getLogger( MetadataLinkNodePostProcessorState.class );
039    private final WikiContext wikiContext;
040    private final boolean m_wysiwygEditorMode;
041
042    public MetadataLinkNodePostProcessorState( final WikiContext wikiContext ) {
043        this.wikiContext = wikiContext;
044        final Boolean wysiwygVariable = ( Boolean )wikiContext.getVariable( RenderingManager.WYSIWYG_EDITOR_MODE );
045        m_wysiwygEditorMode = wysiwygVariable != null ? wysiwygVariable.booleanValue() : false;
046    }
047
048    /**
049     * {@inheritDoc}
050     *
051     * @see NodePostProcessorState#process(NodeTracker, JSPWikiLink)
052     */
053    @Override
054    public void process( final NodeTracker state, final JSPWikiLink link ) {
055        final String metadataLine = NodePostProcessorStateCommonOperations.inlineLinkTextOnWysiwyg( state, link, m_wysiwygEditorMode );
056        try {
057            final String args = metadataLine.substring( metadataLine.indexOf(' '), metadataLine.length() - 1 );
058            String name = args.substring( 0, args.indexOf( '=' ) );
059            String val = args.substring( args.indexOf( '=' ) + 1, args.length() );
060
061            name = name.trim();
062            val = val.trim();
063
064            if( val.startsWith( "'" ) ) {
065                val = val.substring( 1 );
066            }
067            if( val.endsWith( "'" ) ) {
068                val = val.substring( 0, val.length()-1 );
069            }
070
071            LOG.debug( "page=" + wikiContext.getRealPage().getName() + " SET name='" + name + "', value='" + val + "'" );
072
073            if( name.length() > 0 && val.length() > 0 ) {
074                val = wikiContext.getEngine().getVariableManager().expandVariables( wikiContext, val );
075                wikiContext.getPage().setAttribute( name, val );
076                link.unlink();
077                state.nodeRemoved( link );
078            }
079        } catch( final Exception e ) {
080            final ResourceBundle rb = Preferences.getBundle( wikiContext, InternationalizationManager.CORE_BUNDLE );
081            NodePostProcessorStateCommonOperations.makeError( state, link,
082                                                              MessageFormat.format( rb.getString( "markupparser.error.invalidset" ), metadataLine ) );
083        }
084    }
085
086}