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This crawler helps to index binary documents such as PDF, Open Office, MS Office. Local file system (or a mounted drive) crawling and indexing new files, updating existing ones, and removing old ones. Remote file system over SSH/FTP crawling. REST interface to let you “upload” your binary documents to elastic search.
The ftp4j library implements a Java full-featured FTP client. With ftp4j embedded in your application you can: transfer files (upload and download), browse the FTP site (directory listing), create, delete, rename and move directories and files.