rass_tag_set.py

#!/usr/bin/python
#
# Copyright (C) 2008 rambla.be
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

##
#  This sample demonstrates how to set tags on meta resources. 

import time
import rawsc
import rawsc.service
from rawsc import rass
import rawsc.rass.service
from rawsc.rass import Tag, Meta
try:
  from xml.etree import cElementTree as ElementTree
except ImportError:
  try:
    import cElementTree as ElementTree
  except ImportError:
    from elementtree import ElementTree

# user credentials for authentication to RASS
USER = "XXX"
PWD = "XXX"
SERVER = "rass.cdn0XXX.rambla.be"

# path to a local file that may be uploaded
LOCAL_FILE = "/path/to/local/file.mp4"

# name to be given to the local file on the CDN
TGT_FILENAME = "white_noise.mp4"


try:
    # Create a Rass instance, passing it your login credentials and the base service uri
    client = rawsc.rass.service.RassService(username=USER, password=PWD, server=SERVER)
    
    # upload some files, so we can tag them
    item_entry = client.postItem(dirpath = "/tutorial8/", filename = TGT_FILENAME, local_path = LOCAL_FILE)
    print "\nCreated new item resource: %s" % item_entry.id.text
    
    # retrieve the meta resource for this item
    meta_entry = client.getMetaEntryFromPath(item_entry.path)
    print "\nRetrieved meta entry: %s" % meta_entry.id.text
    print "name: " + str(meta_entry.content.params.name.text)
    print "size: " + str(meta_entry.content.params.size.text)
    print "updated: " + str(meta_entry.content.params.updated.text)
    print "mimetype: " + str(meta_entry.content.params.mimetype.text)
    
    # set tags on the meta entry
    meta_entry.content.params.tag = [Tag("eagle"), Tag("movie"),]
    meta_entry = client.updateMeta(meta_entry)
    print "\nSet tags on the meta resource: %s" % meta_entry.id.text
    print "name: " + str(meta_entry.content.params.name.text)
    print "size: " + str(meta_entry.content.params.size.text)
    print "updated: " + str(meta_entry.content.params.updated.text)
    print "mimetype: " + str(meta_entry.content.params.mimetype.text)
    for t in meta_entry.content.params.tag:
        print "tag: " + t.text
    
    # add tags to the meta item
    meta_entry.content.params.tag.append(Tag("documentary"),)
    meta_entry = client.updateMeta(meta_entry)
    print "\nAdded tag to the meta resource: %s" % meta_entry.id.text
    for t in meta_entry.content.params.tag:
        print "tag: " + t.text
    
    # reset tags on the meta item -> existing tags will be removed
    meta_entry = client.createMeta(path = meta_entry.path, tags = [Tag("birdwatching"),])
    print "\nUpdated meta entry using its path : %s" % meta_entry.path
    for t in meta_entry.content.params.tag:
        print "tag: " + t.text
    
    # # delete all manual metadata (= tags and meta elements) - doesn't delete the file (= item resource)
    # client.delete(meta_entry.id.text)
    # 
    # # delete the uploaded file
    # client.delete(item_entry.id.text)

except rawsc.service.Error, e:
    print "Error Response from server, contents = %s.\n" % str(e)
    error_dict = e[0] # error dict inside the first tuple elem
    print "status code : " + str(error_dict["status"]) + "\n"
    if error_dict.has_key("body"):
        print "error body : " + error_dict["body"] + "\n"
except rawsc.RawscException, e:
    print "RawscException caught, reason = %s.\n" % str(e)
except StandardError, e:
    print "StandardError caught, reason = %s.\n" % str(e)
except:
    print "unhandled exception caught\n"

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