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Backend API

@SuppressWarnings(“unchecked”) public class FileExplorerMessageHandler implements MessageHandler.Whole

The FileExplorerMessageHandler implements a messaging protocol that provides a file-explorer service. Each workspace has its own directory and cannot access other workspaces’ directories.

The service provide one endpoint : - getnodes : returns the file structure of the workspace’s, from its root directory, as a tree.

In order to keep consistent the format of messages exchanged between the frontend and the backend, we stuck with using FBP-formatted messages.They are implemented in fr.irisa.diverse.MessageHandlers.FBPNetworkProtocol.FBPMessage

A file upload service is implemented as a REST full API in fr.irisa.diverse.Webserver.Servlets.UploadServlet

INTERFACES IMPLEMENTATIONS The class implements MessageHandler.Whole in order to bring formalism. It also makes it usable as the MessageHandler of a socket.

Created by antoine on 23/06/17.

public void setSocket (ServerSocket socket)

Set the client’s socket instance.

private void sendNodes()

Send a “nodes” message containing the file structure of the workspace’s root directory as a tree.

private JSONArray rootFolderStructure ()

Returns the root directory’s file structure of a workspace as a tree. It goes through all the files and subdirectories so all files are listed in the tree.

A folder content is structure as follow : Tree : { name: String, id: String, children : Array, isExpanded: Boolean }

private JSONArray folderStructure (String path)

Returns the file structure of the given path as a tree. It includes all its subdirectories structure.

A folder content is structure as follow : Tree : { name: String, id: String, children : Array, isExpanded: Boolean }