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workbooks_endpoint.py
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workbooks_endpoint.py
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from .endpoint import Endpoint, api, parameter_added_in
from .exceptions import InternalServerError, MissingRequiredFieldError
from .permissions_endpoint import _PermissionsEndpoint
from .exceptions import MissingRequiredFieldError
from .fileuploads_endpoint import Fileuploads
from .resource_tagger import _ResourceTagger
from .. import RequestFactory, WorkbookItem, ConnectionItem, ViewItem, PaginationItem
from ...models.tag_item import TagItem
from ...models.job_item import JobItem
from ...filesys_helpers import to_filename, make_download_path
import os
import logging
import copy
import cgi
from contextlib import closing
# The maximum size of a file that can be published in a single request is 64MB
FILESIZE_LIMIT = 1024 * 1024 * 64 # 64MB
ALLOWED_FILE_EXTENSIONS = ['twb', 'twbx']
logger = logging.getLogger('tableau.endpoint.workbooks')
class Workbooks(Endpoint):
def __init__(self, parent_srv):
super(Workbooks, self).__init__(parent_srv)
self._resource_tagger = _ResourceTagger(parent_srv)
self._permissions = _PermissionsEndpoint(parent_srv, lambda: self.baseurl)
@property
def baseurl(self):
return "{0}/sites/{1}/workbooks".format(self.parent_srv.baseurl, self.parent_srv.site_id)
# Get all workbooks on site
@api(version="2.0")
def get(self, req_options=None):
logger.info('Querying all workbooks on site')
url = self.baseurl
server_response = self.get_request(url, req_options)
pagination_item = PaginationItem.from_response(server_response.content, self.parent_srv.namespace)
all_workbook_items = WorkbookItem.from_response(server_response.content, self.parent_srv.namespace)
return all_workbook_items, pagination_item
# Get 1 workbook
@api(version="2.0")
def get_by_id(self, workbook_id):
if not workbook_id:
error = "Workbook ID undefined."
raise ValueError(error)
logger.info('Querying single workbook (ID: {0})'.format(workbook_id))
url = "{0}/{1}".format(self.baseurl, workbook_id)
server_response = self.get_request(url)
return WorkbookItem.from_response(server_response.content, self.parent_srv.namespace)[0]
@api(version="2.8")
def refresh(self, workbook_id):
url = "{0}/{1}/refresh".format(self.baseurl, workbook_id)
empty_req = RequestFactory.Empty.empty_req()
server_response = self.post_request(url, empty_req)
new_job = JobItem.from_response(server_response.content, self.parent_srv.namespace)[0]
return new_job
# Delete 1 workbook by id
@api(version="2.0")
def delete(self, workbook_id):
if not workbook_id:
error = "Workbook ID undefined."
raise ValueError(error)
url = "{0}/{1}".format(self.baseurl, workbook_id)
self.delete_request(url)
logger.info('Deleted single workbook (ID: {0})'.format(workbook_id))
# Update workbook
@api(version="2.0")
def update(self, workbook_item):
if not workbook_item.id:
error = "Workbook item missing ID. Workbook must be retrieved from server first."
raise MissingRequiredFieldError(error)
self._resource_tagger.update_tags(self.baseurl, workbook_item)
# Update the workbook itself
url = "{0}/{1}".format(self.baseurl, workbook_item.id)
update_req = RequestFactory.Workbook.update_req(workbook_item)
server_response = self.put_request(url, update_req)
logger.info('Updated workbook item (ID: {0})'.format(workbook_item.id))
updated_workbook = copy.copy(workbook_item)
return updated_workbook._parse_common_tags(server_response.content, self.parent_srv.namespace)
@api(version="2.3")
def update_conn(self, *args, **kwargs):
import warnings
warnings.warn('update_conn is deprecated, please use update_connection instead')
return self.update_connection(*args, **kwargs)
# Update workbook_connection
@api(version="2.3")
def update_connection(self, workbook_item, connection_item):
url = "{0}/{1}/connections/{2}".format(self.baseurl, workbook_item.id, connection_item.id)
update_req = RequestFactory.Connection.update_req(connection_item)
server_response = self.put_request(url, update_req)
connection = ConnectionItem.from_response(server_response.content, self.parent_srv.namespace)[0]
logger.info('Updated workbook item (ID: {0} & connection item {1})'.format(workbook_item.id,
connection_item.id))
return connection
# Download workbook contents with option of passing in filepath
@api(version="2.0")
@parameter_added_in(no_extract='2.5')
@parameter_added_in(include_extract='2.5')
def download(self, workbook_id, filepath=None, include_extract=True, no_extract=None):
if not workbook_id:
error = "Workbook ID undefined."
raise ValueError(error)
url = "{0}/{1}/content".format(self.baseurl, workbook_id)
if no_extract is False or no_extract is True:
import warnings
warnings.warn('no_extract is deprecated, use include_extract instead.', DeprecationWarning)
include_extract = not no_extract
if not include_extract:
url += "?includeExtract=False"
with closing(self.get_request(url, parameters={"stream": True})) as server_response:
_, params = cgi.parse_header(server_response.headers['Content-Disposition'])
filename = to_filename(os.path.basename(params['filename']))
download_path = make_download_path(filepath, filename)
with open(download_path, 'wb') as f:
for chunk in server_response.iter_content(1024): # 1KB
f.write(chunk)
logger.info('Downloaded workbook to {0} (ID: {1})'.format(download_path, workbook_id))
return os.path.abspath(download_path)
# Get all views of workbook
@api(version="2.0")
def populate_views(self, workbook_item, usage=False):
if not workbook_item.id:
error = "Workbook item missing ID. Workbook must be retrieved from server first."
raise MissingRequiredFieldError(error)
def view_fetcher():
return self._get_views_for_workbook(workbook_item, usage)
workbook_item._set_views(view_fetcher)
logger.info('Populated views for workbook (ID: {0})'.format(workbook_item.id))
def _get_views_for_workbook(self, workbook_item, usage):
url = "{0}/{1}/views".format(self.baseurl, workbook_item.id)
if usage:
url += "?includeUsageStatistics=true"
server_response = self.get_request(url)
views = ViewItem.from_response(server_response.content,
self.parent_srv.namespace,
workbook_id=workbook_item.id)
return views
# Get all connections of workbook
@api(version="2.0")
def populate_connections(self, workbook_item):
if not workbook_item.id:
error = "Workbook item missing ID. Workbook must be retrieved from server first."
raise MissingRequiredFieldError(error)
def connection_fetcher():
return self._get_workbook_connections(workbook_item)
workbook_item._set_connections(connection_fetcher)
logger.info('Populated connections for workbook (ID: {0})'.format(workbook_item.id))
def _get_workbook_connections(self, workbook_item, req_options=None):
url = "{0}/{1}/connections".format(self.baseurl, workbook_item.id)
server_response = self.get_request(url, req_options)
connections = ConnectionItem.from_response(server_response.content, self.parent_srv.namespace)
return connections
# Get the pdf of the entire workbook if its tabs are enabled, pdf of the default view if its tabs are disabled
@api(version="3.4")
def populate_pdf(self, workbook_item, req_options=None):
if not workbook_item.id:
error = "Workbook item missing ID."
raise MissingRequiredFieldError(error)
def pdf_fetcher():
return self._get_wb_pdf(workbook_item, req_options)
workbook_item._set_pdf(pdf_fetcher)
logger.info("Populated pdf for workbook (ID: {0})".format(workbook_item.id))
def _get_wb_pdf(self, workbook_item, req_options):
url = "{0}/{1}/pdf".format(self.baseurl, workbook_item.id)
server_response = self.get_request(url, req_options)
pdf = server_response.content
return pdf
# Get preview image of workbook
@api(version="2.0")
def populate_preview_image(self, workbook_item):
if not workbook_item.id:
error = "Workbook item missing ID. Workbook must be retrieved from server first."
raise MissingRequiredFieldError(error)
def image_fetcher():
return self._get_wb_preview_image(workbook_item)
workbook_item._set_preview_image(image_fetcher)
logger.info('Populated preview image for workbook (ID: {0})'.format(workbook_item.id))
def _get_wb_preview_image(self, workbook_item):
url = "{0}/{1}/previewImage".format(self.baseurl, workbook_item.id)
server_response = self.get_request(url)
preview_image = server_response.content
return preview_image
@api(version='2.0')
def populate_permissions(self, item):
self._permissions.populate(item)
@api(version='2.0')
def update_permissions(self, resource, rules):
return self._permissions.update(resource, rules)
@api(version='2.0')
def delete_permission(self, item, capability_item):
return self._permissions.delete(item, capability_item)
# Publishes workbook. Chunking method if file over 64MB
@api(version="2.0")
@parameter_added_in(as_job='3.0')
@parameter_added_in(connections='2.8')
def publish(self, workbook_item, file_path, mode, connection_credentials=None, connections=None, as_job=False):
if connection_credentials is not None:
import warnings
warnings.warn("connection_credentials is being deprecated. Use connections instead",
DeprecationWarning)
if not os.path.isfile(file_path):
error = "File path does not lead to an existing file."
raise IOError(error)
if not hasattr(self.parent_srv.PublishMode, mode):
error = 'Invalid mode defined.'
raise ValueError(error)
filename = os.path.basename(file_path)
file_extension = os.path.splitext(filename)[1][1:]
# If name is not defined, grab the name from the file to publish
if not workbook_item.name:
workbook_item.name = os.path.splitext(filename)[0]
if file_extension not in ALLOWED_FILE_EXTENSIONS:
error = "Only {} files can be published as workbooks.".format(', '.join(ALLOWED_FILE_EXTENSIONS))
raise ValueError(error)
# Construct the url with the defined mode
url = "{0}?workbookType={1}".format(self.baseurl, file_extension)
if mode == self.parent_srv.PublishMode.Overwrite:
url += '&{0}=true'.format(mode.lower())
elif mode == self.parent_srv.PublishMode.Append:
error = 'Workbooks cannot be appended.'
raise ValueError(error)
if as_job:
url += '&{0}=true'.format('asJob')
# Determine if chunking is required (64MB is the limit for single upload method)
if os.path.getsize(file_path) >= FILESIZE_LIMIT:
logger.info('Publishing {0} to server with chunking method (workbook over 64MB)'.format(filename))
upload_session_id = Fileuploads.upload_chunks(self.parent_srv, file_path)
url = "{0}&uploadSessionId={1}".format(url, upload_session_id)
conn_creds = connection_credentials
xml_request, content_type = RequestFactory.Workbook.publish_req_chunked(workbook_item,
connection_credentials=conn_creds,
connections=connections)
else:
logger.info('Publishing {0} to server'.format(filename))
with open(file_path, 'rb') as f:
file_contents = f.read()
conn_creds = connection_credentials
xml_request, content_type = RequestFactory.Workbook.publish_req(workbook_item,
filename,
file_contents,
connection_credentials=conn_creds,
connections=connections)
logger.debug('Request xml: {0} '.format(xml_request[:1000]))
# Send the publishing request to server
try:
server_response = self.post_request(url, xml_request, content_type)
except InternalServerError as err:
if err.code == 504 and not as_job:
err.content = "Timeout error while publishing. Please use asynchronous publishing to avoid timeouts."
raise err
if as_job:
new_job = JobItem.from_response(server_response.content, self.parent_srv.namespace)[0]
logger.info('Published {0} (JOB_ID: {1}'.format(filename, new_job.id))
return new_job
else:
new_workbook = WorkbookItem.from_response(server_response.content, self.parent_srv.namespace)[0]
logger.info('Published {0} (ID: {1})'.format(filename, new_workbook.id))
return new_workbook