| /* |
| JSPWiki - a JSP-based WikiWiki clone. |
| |
| 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 com.ecyrd.jspwiki.tags; |
| |
| import java.io.IOException; |
| |
| import org.apache.jspwiki.api.WikiPage; |
| |
| import com.ecyrd.jspwiki.WikiEngine; |
| import com.ecyrd.jspwiki.attachment.AttachmentManager; |
| import com.ecyrd.jspwiki.providers.ProviderException; |
| |
| /** |
| * Includes body if page has attachments. |
| * |
| * @since 2.0 |
| */ |
| public class HasAttachmentsTag |
| extends WikiTagBase |
| { |
| private static final long serialVersionUID = 0L; |
| |
| public final int doWikiStartTag() |
| throws IOException |
| { |
| WikiEngine engine = m_wikiContext.getEngine(); |
| WikiPage page = m_wikiContext.getPage(); |
| AttachmentManager mgr = engine.getAttachmentManager(); |
| |
| try |
| { |
| if( page != null && engine.pageExists(page) && mgr.attachmentsEnabled() ) |
| { |
| if( mgr.hasAttachments(page) ) |
| { |
| return EVAL_BODY_INCLUDE; |
| } |
| } |
| } |
| catch( ProviderException e ) |
| { |
| log.error("Provider failed while trying to check for attachements",e); |
| // FIXME: THrow something. |
| } |
| |
| return SKIP_BODY; |
| } |
| } |