FolderDS

Usage

The FolderDS/FolderAPI objects have been developed to allow the remote usage of log/config files.

You can use it to export your local files to the whole Tango Control System, so the FolderGUI can search for them.

You can also use it to write your logs into a remote machine, e.g. for saving local space or have persistent storage.

To start using the FolderDS API follow these steps:

• Create a FolderDS device:

import fandango.tango as ft
ft.add_new_device('FolderDS/test','FolderDS','test/folder/tmp')
ft.put_device_property('test/folder/tmp','SaveFolder','/tmp/folderds')
ft.Astor('test/folder/tmp').start_servers()

• Load the API and save a file:

import fandango.device
folders = fandango.device.FolderAPI()
folders.save('test/folder/tmp','test.txt','Hello World!')

• Retrieve the contents from a client, even from another tango_host

import fandango.device
folders = fandango.device.FolderAPI()
v = folders.read('dbhost:10000/test/folder/tmp','test.txt')
print(v)
  "Hello World!"

• Browse the stored files from FolderGUI (you’ll need to add devices from other tango_hosts to FolderDS.ExtraDevices property)

import fandango.tango as ft
devs = ft.get_class_property
import fandango.device.FolderGUI
ui = fandango.device.FolderGUI.main()

FolderAPI(fandango.ProxiesDict)

The FolderAPI object will allow to access all FolderDS instances in the system. This will allow to easily save, read, list files in the FolderDS system. Files can be tracked by any host, using get_all_hosts() and get_host_devices() methods.

FolderDS(DynamicDS)

Properties

SaveFolder:Folder where to save data; /tmp/folderds by default DefaultMethod:Command to be called when from SaveFile(); SaveText by default.

Commands

SaveFile:It Calls the DefaultMethod SaveText:args (filename,[data]); it will save the contents of data as /$SaveFolder/filename GetFile:Returns contents of file GetFileTime:Returns timestamp of filename ListFiles:List all files matching mask (Use * for getting all)

Attributes

State:Not Implemented

Other Methods

save_text_file