private void _queueGeneration(FileVersion sourceFileVersion, FileVersion destinationFileVersion) {
if (_fileVersionIds.contains(destinationFileVersion.getFileVersionId())) {
return;
}
boolean generateImages = false;
String extension = destinationFileVersion.getExtension();
if (extension.equals("pdf")) {
generateImages = true;
} else if (DocumentConversionUtil.isEnabled()) {
String[] conversions = DocumentConversionUtil.getConversions(extension);
for (String conversion : conversions) {
if (conversion.equals("pdf")) {
generateImages = true;
break;
}
}
}
if (generateImages) {
_fileVersionIds.add(destinationFileVersion.getFileVersionId());
sendGenerationMessage(
DestinationNames.DOCUMENT_LIBRARY_PDF_PROCESSOR,
sourceFileVersion,
destinationFileVersion);
}
}
@Override
public boolean isSupported(String mimeType) {
if (Validator.isNull(mimeType)) {
return false;
}
if (mimeType.equals(ContentTypes.APPLICATION_PDF)
|| mimeType.equals(ContentTypes.APPLICATION_X_PDF)) {
return true;
}
if (DocumentConversionUtil.isEnabled()) {
Set<String> extensions = MimeTypesUtil.getExtensions(mimeType);
for (String extension : extensions) {
extension = extension.substring(1);
String[] targetExtensions = DocumentConversionUtil.getConversions(extension);
if (Arrays.binarySearch(targetExtensions, "pdf") >= 0) {
return true;
}
}
}
return false;
}
private void _generateImages(FileVersion sourceFileVersion, FileVersion destinationFileVersion)
throws Exception {
InputStream inputStream = null;
try {
if (sourceFileVersion != null) {
copy(sourceFileVersion, destinationFileVersion);
return;
}
if (_hasImages(destinationFileVersion)) {
return;
}
String extension = destinationFileVersion.getExtension();
if (extension.equals("pdf")) {
if (destinationFileVersion instanceof LiferayFileVersion) {
try {
LiferayFileVersion liferayFileVersion = (LiferayFileVersion) destinationFileVersion;
File file = liferayFileVersion.getFile(false);
_generateImages(destinationFileVersion, file);
return;
} catch (UnsupportedOperationException uoe) {
}
}
inputStream = destinationFileVersion.getContentStream(false);
_generateImages(destinationFileVersion, inputStream);
} else if (DocumentConversionUtil.isEnabled()) {
inputStream = destinationFileVersion.getContentStream(false);
String tempFileId =
DLUtil.getTempFileId(
destinationFileVersion.getFileEntryId(), destinationFileVersion.getVersion());
File file = DocumentConversionUtil.convert(tempFileId, inputStream, extension, "pdf");
_generateImages(destinationFileVersion, file);
}
} catch (NoSuchFileEntryException nsfee) {
} finally {
StreamUtil.cleanUp(inputStream);
_fileVersionIds.remove(destinationFileVersion.getFileVersionId());
}
}
private void _generateImages(FileVersion fileVersion) throws Exception {
try {
if (_hasImages(fileVersion)) {
return;
}
String extension = fileVersion.getExtension();
if (extension.equals("pdf")) {
if (fileVersion instanceof LiferayFileVersion) {
try {
LiferayFileVersion liferayFileVersion = (LiferayFileVersion) fileVersion;
File file = liferayFileVersion.getFile(false);
_generateImages(fileVersion, file);
return;
} catch (UnsupportedOperationException uoe) {
}
}
InputStream inputStream = fileVersion.getContentStream(false);
_generateImages(fileVersion, inputStream);
} else if (DocumentConversionUtil.isEnabled()) {
InputStream inputStream = fileVersion.getContentStream(false);
String tempFileId =
DLUtil.getTempFileId(fileVersion.getFileEntryId(), fileVersion.getVersion());
File file = DocumentConversionUtil.convert(tempFileId, inputStream, extension, "pdf");
_generateImages(fileVersion, file);
}
} catch (NoSuchFileEntryException nsfee) {
} finally {
_fileVersionIds.remove(fileVersion.getFileVersionId());
}
}
