/**
* Relink the content data from a new node to an existing node to preserve the version history.
*
* @param tempNodeRef temp nodeRef
* @param nodeToMoveRef NodeRef
* @param newParentNodeRef NodeRef
* @param newName new name
*/
public void relinkNode(
NodeRef tempNodeRef, NodeRef nodeToMoveRef, NodeRef newParentNodeRef, String newName)
throws FileNotFoundException, FileExistsException {
// Get the properties for the old and new nodes
org.alfresco.service.cmr.model.FileInfo tempFileInfo =
fileFolderService.getFileInfo(tempNodeRef);
org.alfresco.service.cmr.model.FileInfo fileToMoveInfo =
fileFolderService.getFileInfo(nodeToMoveRef);
// Save the current name of the old node
String tempName = tempFileInfo.getName();
try {
// Rename operation will add or remove the sys:temporary aspect appropriately
// rename temp file to the new name
fileFolderService.rename(tempNodeRef, newName);
// rename new file to old name
fileFolderService.rename(nodeToMoveRef, tempName);
} catch (org.alfresco.service.cmr.model.FileNotFoundException e) {
throw new FileNotFoundException(e.getMessage());
} catch (org.alfresco.service.cmr.model.FileExistsException e) {
throw new FileExistsException(e.getMessage());
}
if (!tempFileInfo.isFolder() && !fileToMoveInfo.isFolder()) {
// swap the content between the two
ContentData oldContentData = tempFileInfo.getContentData();
if (oldContentData == null) {
String mimetype = mimetypeService.guessMimetype(tempName);
oldContentData = ContentData.setMimetype(null, mimetype);
}
ContentData newContentData = fileToMoveInfo.getContentData();
// Reset the mime type
// TODO Pass the content along when guessing the mime type, so we're more accurate
String mimetype = mimetypeService.guessMimetype(newName);
newContentData = ContentData.setMimetype(newContentData, mimetype);
nodeService.setProperty(tempNodeRef, ContentModel.PROP_CONTENT, newContentData);
nodeService.setProperty(nodeToMoveRef, ContentModel.PROP_CONTENT, oldContentData);
}
}
@Override
public String guessEncoding(InputStream in, String mimetype) {
String encoding = "UTF-8";
try {
if (in != null) {
// The InputStream must support marks
final BufferedInputStream bufferedInputStream = new BufferedInputStream(in);
Charset charset =
mimetypeService.getContentCharsetFinder().getCharset(bufferedInputStream, mimetype);
encoding = charset.name();
}
} finally {
IOUtils.closeQuietly(in);
}
return encoding;
}
/**
* Streams content back to client from a given File.
*
* @param req The request
* @param res The response
* @param file The file whose content is to be streamed.
* @param modifiedTime The modified datetime to use for the streamed content. If <tt>null</tt> the
* file's timestamp will be used.
* @param attach Indicates whether the content should be streamed as an attachment or not
* @param attachFileName Optional file name to use when attach is <code>true</code>
* @throws IOException
*/
public void streamContent(
WebScriptRequest req,
WebScriptResponse res,
File file,
Long modifiedTime,
boolean attach,
String attachFileName,
Map<String, Object> model)
throws IOException {
if (logger.isDebugEnabled())
logger.debug(
"Retrieving content from file " + file.getAbsolutePath() + " (attach: " + attach + ")");
// determine mimetype from file extension
String filePath = file.getAbsolutePath();
String mimetype = MimetypeMap.MIMETYPE_BINARY;
int extIndex = filePath.lastIndexOf('.');
if (extIndex != -1) {
mimetype = mimetypeService.getMimetype(filePath.substring(extIndex + 1));
}
// setup file reader and stream
FileContentReader reader = new FileContentReader(file);
reader.setMimetype(mimetype);
reader.setEncoding("UTF-8");
long lastModified = modifiedTime == null ? file.lastModified() : modifiedTime;
Date lastModifiedDate = new Date(lastModified);
streamContentImpl(
req,
res,
reader,
null,
null,
attach,
lastModifiedDate,
String.valueOf(lastModifiedDate.getTime()),
attachFileName,
model);
}
/**
* Stream content implementation
*
* @param req The request
* @param res The response
* @param reader The reader
* @param nodeRef The content nodeRef if applicable
* @param propertyQName The content property if applicable
* @param attach Indicates whether the content should be streamed as an attachment or not
* @param modified Modified date of content
* @param eTag ETag to use
* @param attachFileName Optional file name to use when attach is <code>true</code>
* @throws IOException
*/
public void streamContentImpl(
WebScriptRequest req,
WebScriptResponse res,
ContentReader reader,
final NodeRef nodeRef,
final QName propertyQName,
final boolean attach,
final Date modified,
String eTag,
final String attachFileName,
Map<String, Object> model)
throws IOException {
setAttachment(null, res, attach, attachFileName);
// establish mimetype
String mimetype = reader.getMimetype();
String extensionPath = req.getExtensionPath();
if (mimetype == null || mimetype.length() == 0) {
mimetype = MimetypeMap.MIMETYPE_BINARY;
int extIndex = extensionPath.lastIndexOf('.');
if (extIndex != -1) {
String ext = extensionPath.substring(extIndex + 1);
mimetype = mimetypeService.getMimetype(ext);
}
}
res.setHeader(HEADER_ACCEPT_RANGES, "bytes");
try {
boolean processedRange = false;
String range = req.getHeader(HEADER_CONTENT_RANGE);
final long size = reader.getSize();
final String encoding = reader.getEncoding();
if (attach) {
final String finalMimetype = mimetype;
eventPublisher.publishEvent(
new EventPreparator() {
@Override
public Event prepareEvent(String user, String networkId, String transactionId) {
String siteId = siteService.getSiteShortName(nodeRef);
return new ContentEventImpl(
ContentEvent.DOWNLOAD,
user,
networkId,
transactionId,
nodeRef.getId(),
siteId,
propertyQName.toString(),
Client.webclient,
attachFileName,
finalMimetype,
size,
encoding);
}
});
}
if (range == null) {
range = req.getHeader(HEADER_RANGE);
}
if (range != null) {
if (logger.isDebugEnabled()) logger.debug("Found content range header: " + range);
// ensure the range header is starts with "bytes=" and process the range(s)
if (range.length() > 6) {
if (range.indexOf(',') != -1 && (nodeRef == null || propertyQName == null)) {
if (logger.isInfoEnabled()) logger.info("Multi-range only supported for nodeRefs");
} else {
HttpRangeProcessor rangeProcessor = new HttpRangeProcessor(contentService);
processedRange =
rangeProcessor.processRange(
res,
reader,
range.substring(6),
nodeRef,
propertyQName,
mimetype,
req.getHeader(HEADER_USER_AGENT));
}
}
}
if (processedRange == false) {
if (logger.isDebugEnabled()) logger.debug("Sending complete file content...");
// set mimetype for the content and the character encoding for the stream
res.setContentType(mimetype);
res.setContentEncoding(encoding);
// return the complete entity range
res.setHeader(
HEADER_CONTENT_RANGE,
"bytes 0-" + Long.toString(size - 1L) + "/" + Long.toString(size));
res.setHeader(HEADER_CONTENT_LENGTH, Long.toString(size));
// set caching
setResponseCache(res, modified, eTag, model);
// get the content and stream directly to the response output stream
// assuming the repository is capable of streaming in chunks, this should allow large files
// to be streamed directly to the browser response stream.
reader.getContent(res.getOutputStream());
}
} catch (SocketException e1) {
// the client cut the connection - our mission was accomplished apart from a little error
// message
if (logger.isInfoEnabled()) logger.info("Client aborted stream read:\n\tcontent: " + reader);
} catch (ContentIOException e2) {
if (logger.isInfoEnabled()) logger.info("Client aborted stream read:\n\tcontent: " + reader);
}
}
@Override
public String guessMimetype(Resource resource) {
return mimetypeService.guessMimetype(resource.getFilename());
}
