protected Image convertFileEntry(boolean smallImage, FileEntry fileEntry)
throws PortalException, SystemException {
try {
Image image = new ImageImpl();
image.setModifiedDate(fileEntry.getModifiedDate());
InputStream is = null;
if (smallImage) {
is = ImageProcessorUtil.getThumbnailAsStream(fileEntry.getFileVersion(), 0);
} else {
is = fileEntry.getContentStream();
}
byte[] bytes = FileUtil.getBytes(is);
image.setTextObj(bytes);
image.setType(fileEntry.getExtension());
return image;
} catch (PortalException pe) {
throw pe;
} catch (SystemException se) {
throw se;
} catch (Exception e) {
throw new SystemException(e);
}
}
protected void sendFile(
HttpServletRequest request, HttpServletResponse response, User user, String[] pathArray)
throws Exception {
// Retrieve file details
FileEntry fileEntry = getFileEntry(pathArray);
if (fileEntry == null) {
throw new NoSuchFileEntryException();
}
String version = ParamUtil.getString(request, "version");
if (Validator.isNull(version)) {
if (Validator.isNotNull(fileEntry.getVersion())) {
version = fileEntry.getVersion();
}
}
String tempFileId = DLUtil.getTempFileId(fileEntry.getFileEntryId(), version);
FileVersion fileVersion = fileEntry.getFileVersion(version);
String fileName = fileVersion.getTitle();
String extension = fileVersion.getExtension();
if (Validator.isNotNull(extension) && !fileName.endsWith(StringPool.PERIOD + extension)) {
fileName += StringPool.PERIOD + extension;
}
// Handle requested conversion
boolean converted = false;
String targetExtension = ParamUtil.getString(request, "targetExtension");
int imageThumbnail = ParamUtil.getInteger(request, "imageThumbnail");
int documentThumbnail = ParamUtil.getInteger(request, "documentThumbnail");
int previewFileIndex = ParamUtil.getInteger(request, "previewFileIndex");
boolean audioPreview = ParamUtil.getBoolean(request, "audioPreview");
boolean imagePreview = ParamUtil.getBoolean(request, "imagePreview");
boolean videoPreview = ParamUtil.getBoolean(request, "videoPreview");
int videoThumbnail = ParamUtil.getInteger(request, "videoThumbnail");
InputStream inputStream = null;
long contentLength = 0;
if ((imageThumbnail > 0) && (imageThumbnail <= 3)) {
fileName =
FileUtil.stripExtension(fileName)
.concat(StringPool.PERIOD)
.concat(ImageProcessorUtil.getThumbnailType(fileVersion));
int thumbnailIndex = imageThumbnail - 1;
inputStream = ImageProcessorUtil.getThumbnailAsStream(fileVersion, thumbnailIndex);
contentLength = ImageProcessorUtil.getThumbnailFileSize(fileVersion, thumbnailIndex);
converted = true;
} else if ((documentThumbnail > 0) && (documentThumbnail <= 3)) {
fileName =
FileUtil.stripExtension(fileName)
.concat(StringPool.PERIOD)
.concat(PDFProcessor.THUMBNAIL_TYPE);
int thumbnailIndex = documentThumbnail - 1;
inputStream = PDFProcessorUtil.getThumbnailAsStream(fileVersion, thumbnailIndex);
contentLength = PDFProcessorUtil.getThumbnailFileSize(fileVersion, thumbnailIndex);
converted = true;
} else if (previewFileIndex > 0) {
fileName =
FileUtil.stripExtension(fileName)
.concat(StringPool.PERIOD)
.concat(PDFProcessor.PREVIEW_TYPE);
inputStream = PDFProcessorUtil.getPreviewAsStream(fileVersion, previewFileIndex);
contentLength = PDFProcessorUtil.getPreviewFileSize(fileVersion, previewFileIndex);
converted = true;
} else if (audioPreview || videoPreview) {
String type = ParamUtil.getString(request, "type");
fileName = FileUtil.stripExtension(fileName).concat(StringPool.PERIOD).concat(type);
if (audioPreview) {
inputStream = AudioProcessorUtil.getPreviewAsStream(fileVersion, type);
contentLength = AudioProcessorUtil.getPreviewFileSize(fileVersion, type);
} else {
inputStream = VideoProcessorUtil.getPreviewAsStream(fileVersion, type);
contentLength = VideoProcessorUtil.getPreviewFileSize(fileVersion, type);
}
converted = true;
} else if (imagePreview) {
String type = ImageProcessorUtil.getPreviewType(fileVersion);
fileName = FileUtil.stripExtension(fileName).concat(StringPool.PERIOD).concat(type);
inputStream = ImageProcessorUtil.getPreviewAsStream(fileVersion);
contentLength = ImageProcessorUtil.getPreviewFileSize(fileVersion);
converted = true;
} else if ((videoThumbnail > 0) && (videoThumbnail <= 3)) {
fileName =
FileUtil.stripExtension(fileName)
.concat(StringPool.PERIOD)
.concat(VideoProcessor.THUMBNAIL_TYPE);
int thumbnailIndex = videoThumbnail - 1;
inputStream = VideoProcessorUtil.getThumbnailAsStream(fileVersion, thumbnailIndex);
contentLength = VideoProcessorUtil.getThumbnailFileSize(fileVersion, thumbnailIndex);
converted = true;
} else {
inputStream = fileVersion.getContentStream(true);
contentLength = fileVersion.getSize();
if (Validator.isNotNull(targetExtension)) {
File convertedFile =
DocumentConversionUtil.convert(tempFileId, inputStream, extension, targetExtension);
if (convertedFile != null) {
fileName =
FileUtil.stripExtension(fileName).concat(StringPool.PERIOD).concat(targetExtension);
inputStream = new FileInputStream(convertedFile);
contentLength = convertedFile.length();
converted = true;
}
}
}
// Determine proper content type
String contentType = null;
if (converted) {
contentType = MimeTypesUtil.getContentType(fileName);
} else {
contentType = fileVersion.getMimeType();
}
// Support range HTTP header
response.setHeader(HttpHeaders.ACCEPT_RANGES, HttpHeaders.ACCEPT_RANGES_BYTES_VALUE);
List<Range> ranges = null;
try {
ranges = ServletResponseUtil.getRanges(request, response, contentLength);
} catch (IOException ioe) {
if (_log.isErrorEnabled()) {
_log.error(ioe);
}
response.setHeader(HttpHeaders.CONTENT_RANGE, "bytes */" + contentLength);
response.sendError(HttpServletResponse.SC_REQUESTED_RANGE_NOT_SATISFIABLE);
return;
}
if ((ranges == null) || ranges.isEmpty()) {
ServletResponseUtil.sendFile(
request, response, fileName, inputStream, contentLength, contentType);
} else {
if (_log.isDebugEnabled()) {
_log.debug("Request has range header " + request.getHeader(HttpHeaders.RANGE));
}
ServletResponseUtil.write(
request, response, fileName, ranges, inputStream, contentLength, contentType);
}
}