System and method for translating synchronization information between two networks based on different synchronization protocols

摘要

A system and method is described for translating events originally identified as "change" events in one replication protocol to "add" events in another replication protocol where appropriate. More particularly, a WebDAV-based system interacts with a non-WebDAV based system. On a first replication transaction between the two systems, a sync state table is created on an intermediate server or a server that facilitates communication between the two systems. The sync state table is linked to the non-WebDAV system for future replication transactions. The sync state table maintains a list of objects that have been sent to the non-WebDAV system in past replication transactions. Thereafter, for each replication transaction, a manifest of changes since the last replication transaction is transmitted from the WebDAV system to the intermediate server. The manifest includes information in accordance with the WebDAV protocol, i.e. without notice of "add" events. For each "change" event in the manifest, the object reported as changed is compared to the list of objects in the sync state table from the previous transaction. If the object does not exist in the table then the intermediate server changes the object's type from a "change" event to an "add" event and the object is added to the sync state table. When the manifest has been fully processed, the sync state table is persisted for future use.