Docking Multiple File Systems

Many systems face the need to access multiple file systems. For example, to use the local file system and the HDFS file system, users need to understand the Java SDK of the two file systems, which has a great learning cost.

In addition, when using its Java SDK, instantiating FileSystem requires a lot of configuration information and a lot of initialization, which increases the complexity of users.

Provide a common file system Java SDK, users create FileSystem by calling FSFactory, and use common interfaces to access multiple file systems. The overall plan is as follows:

(2) The FileSystem object provides a common interface, such as: obtaining the size of a file (folder), creating and deleting a file (folder), reading and writing files, etc. The user only needs to call the method in the FileSystem object to complete the operation of the corresponding file system.

(3) The user can operate the corresponding file system through FileSystem and pass in the corresponding FsPath, and the general file system operation can be realized through the operation provided in the second point.