mirror of
https://github.com/Alfresco/alfresco-community-repo.git
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Thumbanil API: suport for placeholder thumbnails added and queueing of thumbnails for creation on get
git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@9434 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
This commit is contained in:
Roy Wetherall
@@ -24,7 +24,10 @@
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*/
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package org.alfresco.repo.web.scripts.content;
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import java.io.File;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.io.Writer;
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import java.net.SocketException;
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import java.util.Date;
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@@ -36,6 +39,7 @@ import javax.servlet.http.HttpServletResponse;
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import org.alfresco.model.ContentModel;
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import org.alfresco.repo.content.MimetypeMap;
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import org.alfresco.repo.content.filestore.FileContentReader;
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import org.alfresco.service.cmr.repository.ContentIOException;
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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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@@ -45,6 +49,7 @@ import org.alfresco.service.cmr.repository.NodeService;
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import org.alfresco.service.cmr.security.AccessStatus;
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import org.alfresco.service.cmr.security.PermissionService;
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import org.alfresco.service.namespace.QName;
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import org.alfresco.util.TempFileProvider;
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import org.alfresco.web.scripts.AbstractWebScript;
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import org.alfresco.web.scripts.Cache;
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import org.alfresco.web.scripts.Container;
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@@ -59,6 +64,9 @@ import org.alfresco.web.scripts.servlet.WebScriptServletRequest;
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import org.alfresco.web.scripts.servlet.WebScriptServletResponse;
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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.springframework.util.FileCopyUtils;
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import de.schlichtherle.io.FileOutputStream;
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/**
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* Web script 'type' that can be used when the binary data of a content property needs to be streamed back to the client
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@@ -169,33 +177,44 @@ public class StreamContent extends AbstractWebScript
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sendStatus(req, res, status, cache, format, templateModel);
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}
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else
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{
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// Get the content parameters from the model
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NodeRef nodeRef = (NodeRef)model.get("contentNode");
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if (nodeRef == null)
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{
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throw new WebScriptException("The content node was not specified so the content cannot be streamed to the client");
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}
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QName propertyQName = null;
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String contentProperty = (String)model.get("contentProperty");
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if (contentProperty == null)
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{
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// default to the standard content property
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propertyQName = ContentModel.PROP_CONTENT;
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}
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else
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{
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propertyQName = QName.createQName(contentProperty);
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}
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{
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// Get the attachement property value
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Boolean attachBoolean = (Boolean)model.get("attach");
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boolean attach = false;
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if (attachBoolean != null)
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{
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attach = attachBoolean.booleanValue();
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}
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// Stream the content
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streamContent(req, res, nodeRef, propertyQName, attach);
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String contentPath = (String)model.get("contentPath");
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if (contentPath == null)
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{
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// Get the content parameters from the model
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NodeRef nodeRef = (NodeRef)model.get("contentNode");
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if (nodeRef == null)
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{
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throw new WebScriptException("The content node was not specified so the content cannot be streamed to the client");
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}
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QName propertyQName = null;
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String contentProperty = (String)model.get("contentProperty");
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if (contentProperty == null)
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{
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// default to the standard content property
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propertyQName = ContentModel.PROP_CONTENT;
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}
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else
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{
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propertyQName = QName.createQName(contentProperty);
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}
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// Stream the content
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streamContent(req, res, nodeRef, propertyQName, attach);
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}
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else
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{
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// Stream the content
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streamContent(req, res, contentPath, attach);
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}
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}
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}
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catch(Throwable e)
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@@ -345,6 +364,72 @@ public class StreamContent extends AbstractWebScript
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}
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}
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// get the content reader
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ContentReader reader = contentService.getReader(nodeRef, propertyQName);
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if (reader == null || !reader.exists())
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{
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throw new WebScriptException(HttpServletResponse.SC_NOT_FOUND, "Unable to locate content for node ref " + nodeRef + " (property: " + propertyQName.toString() + ")");
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}
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// Stream the cotent
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streamContentImpl(req, res, reader, attach, modified);
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}
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/**
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* Streams content back to client from a given resource path
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*
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* @param req
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* @param res
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* @param resourcePath
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* @param attach
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* @throws IOException
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*/
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protected void streamContent(WebScriptRequest req, WebScriptResponse res, String resourcePath, boolean attach)
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throws IOException
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{
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String ext = "";
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String mimetype = MimetypeMap.MIMETYPE_BINARY;
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int extIndex = resourcePath.lastIndexOf('.');
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if (extIndex != -1)
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{
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ext = resourcePath.substring(extIndex + 1);
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String mt = mimetypeService.getMimetypesByExtension().get(ext);
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if (mt != null)
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{
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mimetype = mt;
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}
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}
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File file = TempFileProvider.createTempFile("streamContent-", ext);
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InputStream is = this.getClass().getClassLoader().getResourceAsStream(resourcePath);
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OutputStream os = new FileOutputStream(file);
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FileCopyUtils.copy(is, os);
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FileContentReader reader = new FileContentReader(file);
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reader.setMimetype(mimetype);
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reader.setEncoding("UTF-8");
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streamContentImpl(req, res, reader, attach, new Date(file.lastModified()));
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}
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/**
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* Stream content implementation
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*
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* @param req
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* @param res
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* @param reader
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* @param attach
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* @param modified
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* @throws IOException
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*/
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protected void streamContentImpl(WebScriptRequest req, WebScriptResponse res, ContentReader reader, boolean attach, Date modified)
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throws IOException
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{
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HttpServletRequest httpReq = ((WebScriptServletRequest)req).getHttpServletRequest();
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HttpServletResponse httpRes = ((WebScriptServletResponse)res).getHttpServletResponse();
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// handle attachment
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if (attach == true)
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{
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@@ -353,13 +438,6 @@ public class StreamContent extends AbstractWebScript
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httpRes.setHeader("Content-Disposition", "attachment");
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}
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// get the content reader
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ContentReader reader = contentService.getReader(nodeRef, propertyQName);
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if (reader == null || !reader.exists())
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{
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throw new WebScriptException(HttpServletResponse.SC_NOT_FOUND, "Unable to locate content for node ref " + nodeRef + " (property: " + propertyQName.toString() + ")");
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}
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// establish mimetype
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String mimetype = reader.getMimetype();
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String extensionPath = req.getExtensionPath();
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@@ -401,13 +479,12 @@ public class StreamContent extends AbstractWebScript
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{
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// the client cut the connection - our mission was accomplished apart from a little error message
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if (logger.isInfoEnabled())
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logger.info("Client aborted stream read:\n\tnode: " + nodeRef + "\n\tcontent: " + reader);
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logger.info("Client aborted stream read:\n\tcontent: " + reader);
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}
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catch (ContentIOException e2)
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{
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if (logger.isInfoEnabled())
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logger.info("Client aborted stream read:\n\tnode: " + nodeRef + "\n\tcontent: " + reader);
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logger.info("Client aborted stream read:\n\tcontent: " + reader);
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}
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}
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}
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