/**
* Fetches the attachment content from the repository. Content is flat text that can be used for
* indexing/searching or display
*
* @param attachmentName Name of the attachment.
* @param version The version of the attachment.
* @return the content of the Attachment as a String.
*/
protected String getAttachmentContent(String attachmentName, int version) {
AttachmentManager mgr = m_engine.getAttachmentManager();
try {
Attachment att = mgr.getAttachmentInfo(attachmentName, version);
// FIXME: Find out why sometimes att is null
if (att != null) {
return getAttachmentContent(att);
}
} catch (ProviderException e) {
log.error("Attachment cannot be loaded", e);
}
// Something was wrong, no result is returned.
return null;
}
/**
* @param att Attachment to get content for. Filename extension is used to determine the type of
* the attachment.
* @return String representing the content of the file. FIXME This is a very simple implementation
* of some text-based attachment, mainly used for testing. This should be replaced /moved to
* Attachment search providers or some other 'pluggable' wat to search attachments
*/
protected String getAttachmentContent(Attachment att) {
AttachmentManager mgr = m_engine.getAttachmentManager();
// FIXME: Add attachment plugin structure
String filename = att.getFileName();
boolean searchSuffix = false;
for (String suffix : SEARCHABLE_FILE_SUFFIXES) {
if (filename.endsWith(suffix)) {
searchSuffix = true;
}
}
if (searchSuffix) {
InputStream attStream;
try {
attStream = mgr.getAttachmentStream(att);
StringWriter sout = new StringWriter();
FileUtil.copyContents(new InputStreamReader(attStream), sout);
attStream.close();
sout.close();
return sout.toString();
} catch (ProviderException e) {
log.error("Attachment cannot be loaded", e);
return null;
} catch (IOException e) {
log.error("Attachment cannot be loaded", e);
return null;
}
}
return null;
}