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https://github.com/Alfresco/alfresco-community-repo.git
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- model changes
- adding freemarker expression for output path patterns - enabling using the same rendering engine template with multiple mime types - extracting rendering engine template from rendering engine to make moving to templateservice easier eventually git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/BRANCHES/WCM-DEV2/root@4351 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
This commit is contained in:
Ariel Backenroth
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/*
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* Copyright (C) 2005 Alfresco, Inc.
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*
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* Licensed under the Mozilla Public License version 1.1
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* with a permitted attribution clause. You may obtain a
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* copy of the License at
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*
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* http://www.alfresco.org/legal/license.txt
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
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* either express or implied. See the License for the specific
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* language governing permissions and limitations under the
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* License.
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*/
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package org.alfresco.web.forms;
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import freemarker.ext.dom.NodeModel;
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import freemarker.template.SimpleDate;
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import freemarker.template.SimpleHash;
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import freemarker.template.SimpleScalar;
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import freemarker.template.TemplateHashModel;
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import freemarker.template.TemplateModel;
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import freemarker.template.TemplateModelException;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.Serializable;
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import java.util.Date;
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import java.util.HashMap;
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import java.util.Map;
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import org.alfresco.model.ContentModel;
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import org.alfresco.model.WCMModel;
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import org.alfresco.repo.avm.AVMNodeConverter;
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import org.alfresco.service.cmr.repository.ContentReader;
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import org.alfresco.service.cmr.repository.ContentService;
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import org.alfresco.service.cmr.repository.NodeRef;
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import org.alfresco.service.cmr.repository.NodeService;
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import org.alfresco.service.cmr.repository.TemplateService;
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import org.alfresco.service.namespace.QName;
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import org.alfresco.web.bean.wcm.AVMConstants;
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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 org.w3c.dom.Document;
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import org.xml.sax.SAXException;
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/**
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* Implementation of a rendering engine template
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*/
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public class RenderingEngineTemplateImpl
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implements RenderingEngineTemplate
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{
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private static final Log LOGGER = LogFactory.getLog(RenderingEngineTemplateImpl.class);
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private final NodeRef nodeRef;
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private final NodeRef renditionPropertiesNodeRef;
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private final NodeService nodeService;
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private final ContentService contentService;
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private final TemplateService templateService;
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protected RenderingEngineTemplateImpl(final NodeRef nodeRef,
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final NodeRef renditionPropertiesNodeRef,
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final NodeService nodeService,
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final ContentService contentService,
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final TemplateService templateService)
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{
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this.nodeRef = nodeRef;
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this.renditionPropertiesNodeRef = renditionPropertiesNodeRef;
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this.nodeService = nodeService;
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this.contentService = contentService;
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this.templateService = templateService;
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}
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public String getName()
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{
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return (String)
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this.nodeService.getProperty(this.nodeRef,
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ContentModel.PROP_TITLE);
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}
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public String getDescription()
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{
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return (String)
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this.nodeService.getProperty(this.nodeRef,
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ContentModel.PROP_DESCRIPTION);
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}
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public NodeRef getNodeRef()
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{
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return this.nodeRef;
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}
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/**
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* Provides an input stream to the rendering engine template.
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*
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* @return the input stream to the rendering engine template.
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*/
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public InputStream getInputStream()
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throws IOException
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{
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final ContentReader contentReader =
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this.contentService.getReader(this.nodeRef, ContentModel.TYPE_CONTENT);
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return contentReader.getContentInputStream();
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}
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/**
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* Provides the rendering engine to use when processing this template.
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*
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* @return the rendering engine to use when processing this template.
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*/
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public RenderingEngine getRenderingEngine()
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{
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final String renderingEngineName = (String)
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this.nodeService.getProperty(this.nodeRef,
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WCMModel.PROP_PARENT_RENDERING_ENGINE_NAME);
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final FormsService fs = FormsService.getInstance();
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return fs.getRenderingEngine(renderingEngineName);
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}
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/**
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* Returns the output path to use for renditions.
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*
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* @return the output path to use for renditions.
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*/
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public String getOutputPathForRendition(final NodeRef formInstanceDataNodeRef)
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{
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final String outputPathPattern = (String)
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this.nodeService.getProperty(this.renditionPropertiesNodeRef,
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WCMModel.PROP_OUTPUT_PATH_PATTERN_FOR_RENDITION);
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final String formInstanceDataAVMPath =
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AVMNodeConverter.ToAVMVersionPath(formInstanceDataNodeRef).getSecond();
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final TemplateHashModel formInstanceDataModel = new TemplateHashModel()
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{
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private TemplateModel formInstanceDataModel;
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public TemplateModel get(final String key)
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{
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LOGGER.debug("looking up property " + key);
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if ("xml".equals(key))
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{
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try
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{
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if (formInstanceDataModel == null)
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{
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final FormsService fs = FormsService.getInstance();
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final Document formInstanceData = fs.parseXML(formInstanceDataNodeRef);
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formInstanceDataModel = NodeModel.wrap(formInstanceData);
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}
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return formInstanceDataModel;
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}
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catch (Exception e)
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{
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LOGGER.error(e);
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return null;
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}
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}
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else
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{
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final Map<QName, Serializable> properties =
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nodeService.getProperties(formInstanceDataNodeRef);
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for (QName qname : properties.keySet())
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{
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if (qname.getLocalName().equals(key))
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{
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return new SimpleScalar((String)properties.get(qname));
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}
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}
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}
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return null;
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}
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public boolean isEmpty()
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{
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return false;
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}
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};
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final Map<String, TemplateModel> root = new HashMap<String, TemplateModel>();
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root.put("formInstanceData", formInstanceDataModel);
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root.put("date", new SimpleDate(new Date(), SimpleDate.DATETIME));
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String result = templateService.processTemplateString(null,
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outputPathPattern,
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new SimpleHash(root));
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final String parentAVMPath = AVMNodeConverter.SplitBase(formInstanceDataAVMPath)[0];
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result = AVMConstants.buildAbsoluteAVMPath(parentAVMPath, result);
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LOGGER.debug("processed pattern " + outputPathPattern + " as " + result);
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return result;
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}
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/**
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* Returns the mime type to use for generated assets.
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*
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* @return the mime type to use for generated assets.
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*/
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public String getMimetypeForRendition()
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{
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return (String)
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this.nodeService.getProperty(this.renditionPropertiesNodeRef,
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WCMModel.PROP_MIMETYPE_FOR_RENDITION);
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}
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public void registerRendition(final NodeRef renditionNodeRef,
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final NodeRef primaryFormInstanceDataNodeRef)
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{
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final Map<QName, Serializable> props = new HashMap<QName, Serializable>(2, 1.0f);
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props.put(WCMModel.PROP_PARENT_RENDERING_ENGINE_TEMPLATE, this.nodeRef);
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props.put(WCMModel.PROP_PRIMARY_FORM_INSTANCE_DATA, primaryFormInstanceDataNodeRef);
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this.nodeService.addAspect(renditionNodeRef, WCMModel.ASPECT_RENDITION, props);
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}
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}
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