| /* |
| Licensed to the Apache Software Foundation (ASF) under one |
| or more contributor license agreements. See the NOTICE file |
| distributed with this work for additional information |
| regarding copyright ownership. The ASF licenses this file |
| to you under the Apache License, Version 2.0 (the |
| "License"); you may not use this file except in compliance |
| with the License. You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, |
| software distributed under the License is distributed on an |
| "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| KIND, either express or implied. See the License for the |
| specific language governing permissions and limitations |
| under the License. |
| */ |
| package org.apache.wiki.tags; |
| |
| import org.apache.log4j.Logger; |
| import org.apache.wiki.api.core.Engine; |
| import org.apache.wiki.api.core.Page; |
| import org.apache.wiki.api.exceptions.ProviderException; |
| import org.apache.wiki.pages.PageManager; |
| |
| import java.io.IOException; |
| |
| /** |
| * Returns the currently requested page or attachment size. |
| * |
| * @since 2.0 |
| */ |
| public class PageSizeTag extends WikiTagBase { |
| |
| private static final long serialVersionUID = 0L; |
| private static final Logger log = Logger.getLogger( PageSizeTag.class ); |
| |
| @Override |
| public final int doWikiStartTag() throws IOException { |
| final Engine engine = m_wikiContext.getEngine(); |
| final Page page = m_wikiContext.getPage(); |
| |
| try { |
| if( page != null ) { |
| long size = page.getSize(); |
| |
| if( size == -1 && engine.getManager( PageManager.class ).wikiPageExists( page ) ) { // should never happen with attachments |
| size = engine.getManager( PageManager.class ).getPureText( page.getName(), page.getVersion() ).length(); |
| page.setSize( size ); |
| } |
| |
| pageContext.getOut().write( Long.toString(size) ); |
| } |
| } catch( final ProviderException e ) { |
| log.warn("Providers did not work: ",e); |
| pageContext.getOut().write("Error determining page size: "+e.getMessage()); |
| } |
| |
| return SKIP_BODY; |
| } |
| |
| } |