how create document and library in liferay - liferay

Question

Requirement: Adding Parent folders, Child folders and Their files to Document and Library from Particular location.
Case-1: If Folder is already exists then get that id and add file
( Here I am using
addFileEntry(repositoryId, folderId,sourceFileName, mimeType, title, description, changeLog, is, size, serviceContext) of DLAppServiceUtil class ).
Case-2: If Folder is not exits add folder then add file
(Here I am using for adding folder
addFolder() method of DLAppServiceUtil class)
My case its gives slow performance. That is the problem.

Answer 1

Which version of Liferay are you using?
The current trend is the following in 6.1+ (well, when it is correctly implemented, but you can build more or less on this with the new DLApp implementation):
Locate the parent folder id. Use the default from the DLFolderConstancts if you don't have any.
Assume the folder exists and try to get it.
It will throw you a NoSuch***Exception if not found. If this is the case, create the folder by hand
You could do something like this:
private Folder getOrCreateFolder(final ServiceContext serviceContext,
final long userId, final Group group, String folderName)
throws PortalException, SystemException {
final long parentFolderId = DLFolderConstants.DEFAULT_PARENT_FOLDER_ID;
final long repositoryId = group.getGroupId();
try {
final Folder prev = DLAppLocalServiceUtil.getFolder(
repositoryId, parentFolderId, folderName);
return prev;
} catch (final NoSuchFolderException e) {
final Folder newFolder = DLAppLocalServiceUtil.addFolder(userId,
repositoryId, parentFolderId, folderName,
"My cool new folder", serviceContext);
return newFolder;
}
}
The docs and stuff are absolutely leaky about why you call the addFolder() that way, take a look on the portal source. It's not that trivial but isn't that hard to get used to either.