    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.Node;
    022import com.vladsch.flexmark.util.ast.NodeTracker;
    023import org.apache.logging.log4j.LogManager;
    024import org.apache.logging.log4j.Logger;
    025import org.apache.wiki.api.core.Context;
    026import org.apache.wiki.i18n.InternationalizationManager;
    027import org.apache.wiki.markdown.nodes.JSPWikiLink;
    028import org.apache.wiki.preferences.Preferences;
    029import org.apache.wiki.variables.VariableManager;
    030
    031import java.text.MessageFormat;
    032import java.util.ResourceBundle;
    033
    034
    035/**
    036 * {@link NodePostProcessorState} which further post processes metadata links.
    037 */
    038public class MetadataLinkNodePostProcessorState implements NodePostProcessorState< JSPWikiLink > {
    039
    040    private static final Logger LOG = LogManager.getLogger( MetadataLinkNodePostProcessorState.class );
    041    private final Context wikiContext;
    042    private final boolean m_wysiwygEditorMode;
    043
    044    public MetadataLinkNodePostProcessorState( final Context wikiContext ) {
    045        this.wikiContext = wikiContext;
    046        final Boolean wysiwygVariable = wikiContext.getVariable( Context.VAR_WYSIWYG_EDITOR_MODE );
    047        m_wysiwygEditorMode = wysiwygVariable != null ? wysiwygVariable : false;
    048    }
    049
    050    /**
    051     * {@inheritDoc}
    052     *
    053     * @see NodePostProcessorState#process(NodeTracker, Node)
    054     */
    055    @Override
    056    public void process( final NodeTracker state, final JSPWikiLink link ) {
    057        final String metadataLine = NodePostProcessorStateCommonOperations.inlineLinkTextOnWysiwyg( state, link, m_wysiwygEditorMode );
    058        try {
    059            final String args = metadataLine.substring( metadataLine.indexOf(' '), metadataLine.length() - 1 );
    060            String name = args.substring( 0, args.indexOf( '=' ) );
    061            String val = args.substring( args.indexOf( '=' ) + 1 );
    062
    063            name = name.trim();
    064            val = val.trim();
    065
    066            if( val.startsWith( "'" ) ) {
    067                val = val.substring( 1 );
    068            }
    069            if( val.endsWith( "'" ) ) {
    070                val = val.substring( 0, val.length()-1 );
    071            }
    072
    073            LOG.debug( "page=" + wikiContext.getRealPage().getName() + " SET name='" + name + "', value='" + val + "'" );
    074
    075            if( !name.isEmpty() && !val.isEmpty() ) {
    076                val = wikiContext.getEngine().getManager( VariableManager.class ).expandVariables( wikiContext, val );
    077                wikiContext.getPage().setAttribute( name, val );
    078                link.unlink();
    079                state.nodeRemoved( link );
    080            }
    081        } catch( final Exception e ) {
    082            final ResourceBundle rb = Preferences.getBundle( wikiContext, InternationalizationManager.CORE_BUNDLE );
    083            NodePostProcessorStateCommonOperations.makeError( state, link,
    084                                                              MessageFormat.format( rb.getString( "markupparser.error.invalidset" ), metadataLine ) );
    085        }
    086    }
    087
    088}