@Override
public void constraintContentStreamRequired(String repositoryId, Document document) {
String objectTypeId = document.getObjectType();
DocumentTypeDefinition td =
(DocumentTypeDefinition) typeManager.getTypeDefinition(repositoryId, objectTypeId);
if (td.getContentStreamAllowed() == ContentStreamAllowed.REQUIRED) {
if (document.getAttachmentNodeId() == null
|| contentService.getAttachment(repositoryId, document.getAttachmentNodeId()) == null) {
constraint(document.getId(), "This document type does not allow no content stream");
}
}
}
// TODO Implement HTTP range(offset and length of stream), though it is not
// obligatory.
private ContentStream getContentStreamInternal(
String repositoryId, Content content, BigInteger rangeOffset, BigInteger rangeLength) {
if (!content.isDocument()) {
exceptionService.constraint(
content.getId(), "getContentStream cannnot be invoked to other than document type.");
}
Document document = (Document) content;
exceptionService.constraintContentStreamDownload(repositoryId, document);
AttachmentNode attachment =
contentService.getAttachment(repositoryId, document.getAttachmentNodeId());
attachment.setRangeOffset(rangeOffset);
attachment.setRangeLength(rangeLength);
// Set content stream
BigInteger length = BigInteger.valueOf(attachment.getLength());
String name = attachment.getName();
String mimeType = attachment.getMimeType();
InputStream is = attachment.getInputStream();
ContentStream cs = new ContentStreamImpl(name, length, mimeType, is);
return cs;
}