mirror of
https://github.com/Alfresco/alfresco-community-repo.git
synced 2025-10-08 14:51:49 +00:00
6afb44e712
125606 rmunteanu: Merged 5.1.1 (5.1.1) to 5.1.N (5.1.2)
125515 slanglois: MNT-16155 Update source headers - add new Copyrights for Java and JSP source files + automatic check in the build
git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/BRANCHES/DEV/5.2.N/root@125788 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
92 lines
3.4 KiB
Java
92 lines
3.4 KiB
Java
/*
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* #%L
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* Alfresco Repository
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* %%
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* Copyright (C) 2005 - 2016 Alfresco Software Limited
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* %%
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* This file is part of the Alfresco software.
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* If the software was purchased under a paid Alfresco license, the terms of
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* the paid license agreement will prevail. Otherwise, the software is
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* provided under the following open source license terms:
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*
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* Alfresco is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Alfresco is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
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* #L%
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*/
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package org.alfresco.repo.template;
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import java.util.List;
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import org.alfresco.repo.processor.BaseProcessorExtension;
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import org.alfresco.repo.template.BaseContentNode.TemplateContentData;
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import org.alfresco.service.cmr.repository.ContentIOException;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import freemarker.ext.beans.BeanModel;
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import freemarker.template.TemplateMethodModelEx;
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import freemarker.template.TemplateModelException;
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import freemarker.template.TemplateNumberModel;
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/**
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* @author Kevin Roast
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*
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* FreeMarker custom method to return the first N characters of a content stream.
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* <p>
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* Usage: String cropContent(TemplateContentData content, int length)
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*/
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public final class CropContentMethod extends BaseProcessorExtension implements TemplateMethodModelEx
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{
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private static final Log logger = LogFactory.getLog(CropContentMethod.class);
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/**
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* @see freemarker.template.TemplateMethodModel#exec(java.util.List)
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*/
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public Object exec(List args) throws TemplateModelException
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{
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String result = null;
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if (args.size() == 2)
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{
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Object arg0 = args.get(0);
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Object arg1 = args.get(1);
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if (arg0 instanceof BeanModel && arg1 instanceof TemplateNumberModel)
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{
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Object wrapped = ((BeanModel)arg0).getWrappedObject();
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if (wrapped instanceof TemplateContentData)
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{
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int bytes = ((TemplateNumberModel)arg1).getAsNumber().intValue();
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try
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{
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result = ((TemplateContentData)wrapped).getContentAsText(bytes);
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}
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catch (ContentIOException e)
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{
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logger.warn("unable to getContentAsText", e);
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/*
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* Unable to extract content - return empty text instead.
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* Probably here through a transformation failure.
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* This method is called from FreeMarker so throwing the
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* exception causes problems.
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*/
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result = "";
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}
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}
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}
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}
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return result != null ? result : "";
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}
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}
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