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requests.py
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requests.py
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# -*- coding: utf-8 -*-
# Copyright European Organization for Nuclear Research (CERN) since 2012
#
# 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.
import json
import flask
from flask import Flask, Response
from typing import TYPE_CHECKING
from rucio.api import request
from rucio.common.exception import RequestNotFound
from rucio.common.utils import APIEncoder, render_json
from rucio.core.rse import get_rses_with_attribute_value
from rucio.db.sqla.constants import RequestState
from rucio.web.rest.flaskapi.authenticated_bp import AuthenticatedBlueprint
from rucio.web.rest.flaskapi.v1.common import check_accept_header_wrapper_flask, parse_scope_name, try_stream, \
response_headers, generate_http_error_flask, ErrorHandlingMethodView
if TYPE_CHECKING:
from typing import Iterator
class RequestGet(ErrorHandlingMethodView):
""" REST API to get requests. """
@check_accept_header_wrapper_flask(['application/json'])
def get(self, scope_name, rse):
"""
---
summary: Get Request
description: Get a request for a given DID to a destinaion RSE.
tags:
- Requests
parameters:
- name: scope_name
in: path
description: Data identifier (scope)/(name).
schema:
type: string
style: simple
- name: rse
in: path
description: Destination rse.
schema:
type: string
style: simple
responses:
200:
description: OK
content:
application/json:
schema:
description: The request associated with the DID and destination RSE.
type: object
properties:
id:
description: The id of the request.
type: string
request_type:
description: The request type.
type: string
enum: ["T", "U", "D", "I", "O"]
scope:
description: The scope of the transfer.
type: string
name:
description: The name of the transfer.
type: string
did_type:
description: The did type.
type: string
dest_rse_id:
description: The destination RSE id.
type: string
source_rse_id:
description: The source RSE id.
type: string
attributes:
description: All attributes associated with the request.
type: string
state:
description: The state of the request.
type: string
enum: ["Q", "G", "S", "F", "D", "L", "N", "O", "A", "M", "U", "W", "P"]
external_id:
description: External id of the request.
type: string
external_host:
description: External host of the request.
type: string
retry_count:
description: The numbers of attempted retires.
type: integer
err_msg:
description: An error message if one occured.
type: string
previous_attempt_id:
description: The id of the previous attempt.
type: string
rule_id:
description: The id of the associated replication rule.
type: string
activity:
description: The activity of the request.
type: string
bytes:
description: The size of the did in bytes.
type: integer
md5:
description: The md5 checksum of the did to transfer.
type: string
adler32:
description: The adler32 checksum of the did to transfer.
type: string
dest_url:
description: The destination url.
type: string
submitted_at:
description: The time the request got submitted.
type: string
started_at:
description: The time the request got started.
type: string
transferred_at:
description: The time the request got transfered.
type: string
estimated_at:
description: The time the request got estimated.
type: string
submitter_id:
description: The id of the submitter.
type: string
estimated_stated_at:
description: The estimation of the started at value.
type: string
estimated_transferred_at:
description: The estimation of the transfered at value.
type: string
staging_started_at:
description: The time the staging got started.
type: string
staging_finished_at:
description: The time the staging got finished.
type: string
account:
description: The account which issued the request.
type: string
requested_at:
description: The time the request got requested.
type: string
priority:
description: The priority of the request.
type: integer
transfertool:
description: The transfertool used.
type: string
source_rse:
description: The name of the source RSE.
type: string
dest_rse:
description: The name of the destination RSE.
type: string
401:
description: Invalid Auth Token
404:
description: Not found
406:
description: Not acceptable
"""
try:
scope, name = parse_scope_name(scope_name, flask.request.environ.get('vo'))
except ValueError as error:
return generate_http_error_flask(400, error)
try:
request_data = request.get_request_by_did(
scope=scope,
name=name,
rse=rse,
issuer=flask.request.environ.get('issuer'),
vo=flask.request.environ.get('vo'),
)
return Response(json.dumps(request_data, cls=APIEncoder), content_type='application/json')
except RequestNotFound as error:
return generate_http_error_flask(404, error.__class__.__name__, f'No request found for DID {scope}:{name} at RSE {rse}')
class RequestHistoryGet(ErrorHandlingMethodView):
""" REST API to get historical requests. """
@check_accept_header_wrapper_flask(['application/json'])
def get(self, scope_name, rse):
"""
---
summary: Get Historical Request
description: List a hostorical request for a given DID to a destination RSE.
tags:
- Requests
parameters:
- name: scope_name
in: path
description: Data identifier (scope)/(name).
schema:
type: string
style: simple
- name: rse
in: path
description: Destination rse.
schema:
type: string
style: simple
responses:
200:
description: OK
content:
application/json:
schema:
description: The request associated with the DID and destination RSE.
type: object
properties:
id:
description: The id of the request.
type: string
request_type:
description: The request type.
type: string
enum: ["T", "U", "D", "I", "O"]
scope:
description: The scope of the transfer.
type: string
name:
description: The name of the transfer.
type: string
did_type:
description: The did type.
type: string
dest_rse_id:
description: The destination RSE id.
type: string
source_rse_id:
description: The source RSE id.
type: string
attributes:
description: All attributes associated with the request.
type: string
state:
description: The state of the request.
type: string
enum: ["Q", "G", "S", "F", "D", "L", "N", "O", "A", "M", "U", "W", "P"]
external_id:
description: External id of the request.
type: string
external_host:
description: External host of the request.
type: string
retry_count:
description: The numbers of attempted retires.
type: integer
err_msg:
description: An error message if one occured.
type: string
previous_attempt_id:
description: The id of the previous attempt.
type: string
rule_id:
description: The id of the associated replication rule.
type: string
activity:
description: The activity of the request.
type: string
bytes:
description: The size of the did in bytes.
type: integer
md5:
description: The md5 checksum of the did to transfer.
type: string
adler32:
description: The adler32 checksum of the did to transfer.
type: string
dest_url:
description: The destination url.
type: string
submitted_at:
description: The time the request got submitted.
type: string
started_at:
description: The time the request got started.
type: string
transferred_at:
description: The time the request got transfered.
type: string
estimated_at:
description: The time the request got estimated.
type: string
submitter_id:
description: The id of the submitter.
type: string
estimated_stated_at:
description: The estimation of the started at value.
type: string
estimated_transferred_at:
description: The estimation of the transfered at value.
type: string
staging_started_at:
description: The time the staging got started.
type: string
staging_finished_at:
description: The time the staging got finished.
type: string
account:
description: The account which issued the request.
type: string
requested_at:
description: The time the request got requested.
type: string
priority:
description: The priority of the request.
type: integer
transfertool:
description: The transfertool used.
type: string
source_rse:
description: The name of the source RSE.
type: string
dest_rse:
description: The name of the destination RSE.
type: string
401:
description: Invalid Auth Token
404:
description: Not found
406:
description: Not acceptable
"""
try:
scope, name = parse_scope_name(scope_name, flask.request.environ.get('vo'))
except ValueError as error:
return generate_http_error_flask(400, error)
try:
request_data = request.get_request_history_by_did(
scope=scope,
name=name,
rse=rse,
issuer=flask.request.environ.get('issuer'),
vo=flask.request.environ.get('vo'),
)
return Response(json.dumps(request_data, cls=APIEncoder), content_type='application/json')
except RequestNotFound as error:
return generate_http_error_flask(404, error.__class__.__name__, f'No request found for DID {scope}:{name} at RSE {rse}')
class RequestList(ErrorHandlingMethodView):
""" REST API to get requests. """
@check_accept_header_wrapper_flask(['application/x-json-stream'])
def get(self):
"""
---
summary: List Requests
description: List requests for a given source and destination RSE or site.
tags:
- Requests
parameters:
- name: src_rse
in: query
description: The source rse.
schema:
type: array
items:
type: object
required:
- rse_id
properties:
rse_id:
description: The id of the rse.
type: string
- name: dest_rse
in: query
description: The destination rse.
schema:
type: array
items:
type: object
required:
- rse_id
properties:
rse_id:
description: The id of the rse.
type: string
- name: src_site
in: query
description: The source site.
schema:
type: string
- name: dest_site
in: query
description: The destination site.
schema:
type: string
- name: request_states
in: query
description: The accepted request states. Delimited by comma.
schema:
type: string
responses:
200:
description: OK
content:
application/x-json-stream:
schema:
description: All requests matching the arguments. Seperated by the new line character.
type: array
items:
description: A request.
type: object
properties:
id:
description: The id of the request.
type: string
request_type:
description: The request type.
type: string
enum: ["T", "U", "D", "I", "O"]
scope:
description: The scope of the transfer.
type: string
name:
description: The name of the transfer.
type: string
did_type:
description: The did type.
type: string
dest_rse_id:
description: The destination RSE id.
type: string
source_rse_id:
description: The source RSE id.
type: string
attributes:
description: All attributes associated with the request.
type: string
state:
description: The state of the request.
type: string
enum: ["Q", "G", "S", "F", "D", "L", "N", "O", "A", "M", "U", "W", "P"]
external_id:
description: External id of the request.
type: string
external_host:
description: External host of the request.
type: string
retry_count:
description: The numbers of attempted retires.
type: integer
err_msg:
description: An error message if one occured.
type: string
previous_attempt_id:
description: The id of the previous attempt.
type: string
rule_id:
description: The id of the associated replication rule.
type: string
activity:
description: The activity of the request.
type: string
bytes:
description: The size of the did in bytes.
type: integer
md5:
description: The md5 checksum of the did to transfer.
type: string
adler32:
description: The adler32 checksum of the did to transfer.
type: string
dest_url:
description: The destination url.
type: string
submitted_at:
description: The time the request got submitted.
type: string
started_at:
description: The time the request got started.
type: string
transferred_at:
description: The time the request got transfered.
type: string
estimated_at:
description: The time the request got estimated.
type: string
submitter_id:
description: The id of the submitter.
type: string
estimated_stated_at:
description: The estimation of the started at value.
type: string
estimated_transferred_at:
description: The estimation of the transfered at value.
type: string
staging_started_at:
description: The time the staging got started.
type: string
staging_finished_at:
description: The time the staging got finished.
type: string
account:
description: The account which issued the request.
type: string
requested_at:
description: The time the request got requested.
type: string
priority:
description: The priority of the request.
type: integer
transfertool:
description: The transfertool used.
type: string
source_rse:
description: The name of the source RSE.
type: string
dest_rse:
description: The name of the destination RSE.
type: string
401:
description: Invalid Auth Token
404:
description: Not found
406:
description: Not acceptable
"""
src_rse = flask.request.args.get('src_rse', default=None)
dst_rse = flask.request.args.get('dst_rse', default=None)
src_site = flask.request.args.get('src_site', default=None)
dst_site = flask.request.args.get('dst_site', default=None)
request_states = flask.request.args.get('request_states', default=None)
if not request_states:
return generate_http_error_flask(400, 'MissingParameter', 'Request state is missing')
if src_rse and not dst_rse:
return generate_http_error_flask(400, 'MissingParameter', 'Destination RSE is missing')
elif dst_rse and not src_rse:
return generate_http_error_flask(400, 'MissingParameter', 'Source RSE is missing')
elif src_site and not dst_site:
return generate_http_error_flask(400, 'MissingParameter', 'Destination site is missing')
elif dst_site and not src_site:
return generate_http_error_flask(400, 'MissingParameter', 'Source site is missing')
try:
states = [RequestState(state) for state in request_states.split(',')]
except ValueError:
return generate_http_error_flask(400, 'Invalid', 'Request state value is invalid')
src_rses = []
dst_rses = []
if src_site:
src_rses = get_rses_with_attribute_value(key='site', value=src_site, vo=flask.request.environ.get('vo'))
if not src_rses:
return generate_http_error_flask(404, 'NotFound', f'Could not resolve site name {src_site} to RSE')
src_rses = [rse['rse_name'] for rse in src_rses]
dst_rses = get_rses_with_attribute_value(key='site', value=dst_site, vo=flask.request.environ.get('vo'))
if not dst_rses:
return generate_http_error_flask(404, 'NotFound', f'Could not resolve site name {dst_site} to RSE')
dst_rses = [rse['rse_name'] for rse in dst_rses]
else:
dst_rses = [dst_rse]
src_rses = [src_rse]
def generate(issuer, vo):
for result in request.list_requests(src_rses, dst_rses, states, issuer=issuer, vo=vo):
yield render_json(**result) + '\n'
return try_stream(generate(issuer=flask.request.environ.get('issuer'), vo=flask.request.environ.get('vo')))
class RequestHistoryList(ErrorHandlingMethodView):
""" REST API to get requests. """
@check_accept_header_wrapper_flask(['application/x-json-stream'])
def get(self):
"""
---
summary: List Historic Requests
description: List historical requests for a given source and destination RSE or site.
tags:
- Requests
parameters:
- name: src_rse
in: query
description: The source rse.
schema:
type: array
items:
type: object
required:
- rse_id
properties:
rse_id:
description: The id of the rse.
type: string
- name: dest_rse
in: query
description: The destination rse.
schema:
type: array
items:
type: object
required:
- rse_id
properties:
rse_id:
description: The id of the rse.
type: string
- name: src_site
in: query
description: The source site.
schema:
type: string
- name: dest_site
in: query
description: The destination site.
schema:
type: string
- name: request_states
in: query
description: The accepted request states. Delimited by comma.
schema:
type: string
- name: offset
in: query
description: The offset of the list.
schema:
type: integer
default: 0
- name: limit
in: query
description: The maximum number of items to return.
schema:
type: integer
default: 100
responses:
200:
description: OK
content:
application/x-json-stream:
schema:
description: All requests matching the arguments. Seperated by a new line character.
type: array
items:
description: A request.
type: object
properties:
id:
description: The id of the request.
type: string
request_type:
description: The request type.
type: string
enum: ["T", "U", "D", "I", "O"]
scope:
description: The scope of the transfer.
type: string
name:
description: The name of the transfer.
type: string
did_type:
description: The did type.
type: string
dest_rse_id:
description: The destination RSE id.
type: string
source_rse_id:
description: The source RSE id.
type: string
attributes:
description: All attributes associated with the request.
type: string
state:
description: The state of the request.
type: string
enum: ["Q", "G", "S", "F", "D", "L", "N", "O", "A", "M", "U", "W", "P"]
external_id:
description: External id of the request.
type: string
external_host:
description: External host of the request.
type: string
retry_count:
description: The numbers of attempted retires.
type: integer
err_msg:
description: An error message if one occured.
type: string
previous_attempt_id:
description: The id of the previous attempt.
type: string
rule_id:
description: The id of the associated replication rule.
type: string
activity:
description: The activity of the request.
type: string
bytes:
description: The size of the did in bytes.
type: integer
md5:
description: The md5 checksum of the did to transfer.
type: string
adler32:
description: The adler32 checksum of the did to transfer.
type: string
dest_url:
description: The destination url.
type: string
submitted_at:
description: The time the request got submitted.
type: string
started_at:
description: The time the request got started.
type: string
transferred_at:
description: The time the request got transfered.
type: string
estimated_at:
description: The time the request got estimated.
type: string
submitter_id:
description: The id of the submitter.
type: string
estimated_stated_at:
description: The estimation of the started at value.
type: string
estimated_transferred_at:
description: The estimation of the transfered at value.
type: string
staging_started_at:
description: The time the staging got started.
type: string
staging_finished_at:
description: The time the staging got finished.
type: string
account:
description: The account which issued the request.
type: string
requested_at:
description: The time the request got requested.
type: string
priority:
description: The priority of the request.
type: integer
transfertool:
description: The transfertool used.
type: string
source_rse:
description: The name of the source RSE.
type: string
dest_rse:
description: The name of the destination RSE.
type: string
401:
description: Invalid Auth Token
404:
description: Not found
406:
description: Not acceptable
"""
src_rse = flask.request.args.get('src_rse', default=None)
dst_rse = flask.request.args.get('dst_rse', default=None)
src_site = flask.request.args.get('src_site', default=None)
dst_site = flask.request.args.get('dst_site', default=None)
request_states = flask.request.args.get('request_states', default=None)
offset = flask.request.args.get('offset', default=0)
limit = flask.request.args.get('limit', default=100)
if not request_states:
return generate_http_error_flask(400, 'MissingParameter', 'Request state is missing')
if src_rse and not dst_rse:
return generate_http_error_flask(400, 'MissingParameter', 'Destination RSE is missing')
elif dst_rse and not src_rse:
return generate_http_error_flask(400, 'MissingParameter', 'Source RSE is missing')
elif src_site and not dst_site:
return generate_http_error_flask(400, 'MissingParameter', 'Destination site is missing')
elif dst_site and not src_site:
return generate_http_error_flask(400, 'MissingParameter', 'Source site is missing')
try:
states = [RequestState(state) for state in request_states.split(',')]
except ValueError:
return generate_http_error_flask(400, 'Invalid', 'Request state value is invalid')
src_rses = []
dst_rses = []
if src_site:
src_rses = get_rses_with_attribute_value(key='site', value=src_site, vo=flask.request.environ.get('vo'))
if not src_rses:
return generate_http_error_flask(404, 'NotFound', f'Could not resolve site name {src_site} to RSE')
src_rses = [rse['rse_name'] for rse in src_rses]
dst_rses = get_rses_with_attribute_value(key='site', value=dst_site, vo=flask.request.environ.get('vo'))
if not dst_rses:
return generate_http_error_flask(404, 'NotFound', f'Could not resolve site name {dst_site} to RSE')
dst_rses = [rse['rse_name'] for rse in dst_rses]
else:
dst_rses = [dst_rse]
src_rses = [src_rse]
def generate(issuer, vo):
for result in request.list_requests_history(src_rses, dst_rses, states, issuer=issuer, vo=vo, offset=offset, limit=limit):
yield render_json(**result) + '\n'
return try_stream(generate(issuer=flask.request.environ.get('issuer'), vo=flask.request.environ.get('vo')))
class RequestMetricsGet(ErrorHandlingMethodView):
""" REST API to get request stats. """
@check_accept_header_wrapper_flask(['application/x-json-stream'])
def get(self):
"""
---
summary: Get Request Statistics
description: Get statistics of requests grouped by source, destination, and activity.
tags:
- Requests
parameters:
- name: dest_rse
in: query
description: The destination RSE name
schema:
type: string
- name: source_rse
in: query
description: The source RSE name
schema:
type: string
- name: activity
in: query
description: The activity
schema:
type: string
- name: group_response_by
in: query
description: The parameter to group the RSEs by.
schema:
type: string
responses:
200:
description: OK
content:
application/x-json-stream:
schema:
description: Statistics of requests by source, destination, and activity.
type: array
items:
description: Statistics of the request group for a given (source, destination, activity) tuple.
type: object
properties:
src_rse:
type: string
description: The name of this links source RSE
dst_rse:
type: string
description: The name of this links destination RSE
distance:
type: integer
description: The distance between the source and destination RSE
files:
type: object
properties:
done-total-1h:
type: integer
description: The total number of files successfully transferred in the last 1 hour
done-total-6h:
type: integer
description: The total number of files successfully transferred in the last 6 hours
failed-total-1h:
type: integer
description: The total number of transfer failures in the last 1 hour
failed-total-6h:
type: integer
description: The total number of transfer failures in the last 6 hours
queued-total:
type: integer
description: The total number of files queued in rucio
queued:
type: object
description: Per-activity number of queued files
additionalProperties:
type: integer
done:
type: object
additionalProperties:
type: object
properties:
1h:
type: integer
6h:
type: integer
failed:
type: object
description: Per-activity number of transfer failures in the last 1 and 6 hours
additionalProperties:
type: object
properties:
1h:
type: integer
6h:
type: integer
bytes:
type: object
properties:
done-total-1h:
type: integer
description: The total number of bytes successfully transferred in the last 1 hour
done-total-6h:
type: integer
description: The total number of bytes successfully transferred in the last 6 hours
queued-total:
type: integer
description: The total number of bytes queued to be transferred by rucio
queued:
type: object
description: Per-activity amount of queued bytes
additionalProperties:
type: integer
done:
type: object
description: Per-activity number of transferred bytes in the last 1 and 6 hours
additionalProperties:
type: object
properties:
1h:
type: integer
6h:
type: integer
required:
- distance
- src_rse
- dst_rse
401:
description: Invalid Auth Token
"""
dst_rse = flask.request.args.get('dst_rse', default=None)
src_rse = flask.request.args.get('src_rse', default=None)
activity = flask.request.args.get('activity', default=None)
group_response_by = flask.request.args.get('group_response_by', default=None)
format = flask.request.args.get('format', default=None)
metrics = request.get_request_metrics(
dst_rse=dst_rse,
src_rse=src_rse,
activity=activity,
group_response_by=group_response_by,
issuer=flask.request.environ.get('issuer'),
vo=flask.request.environ.get('vo')
)
if format == 'panda':
return Response(json.dumps(metrics, cls=APIEncoder), content_type='application/json')
def generate() -> "Iterator[str]":
for result in metrics.values():
yield render_json(**result) + '\n'
return try_stream(generate())
def blueprint():
bp = AuthenticatedBlueprint('requests', __name__, url_prefix='/requests')
request_get_view = RequestGet.as_view('request_get')
bp.add_url_rule('/<path:scope_name>/<rse>', view_func=request_get_view, methods=['get', ])
request_history_get_view = RequestHistoryGet.as_view('request_history_get')
bp.add_url_rule('/history/<path:scope_name>/<rse>', view_func=request_history_get_view, methods=['get', ])
request_list_view = RequestList.as_view('request_list')
bp.add_url_rule('/list', view_func=request_list_view, methods=['get', ])
request_history_list_view = RequestHistoryList.as_view('request_history_list')
bp.add_url_rule('/history/list', view_func=request_history_list_view, methods=['get', ])
request_metrics_view = RequestMetricsGet.as_view('request_metrics_get')
bp.add_url_rule('/metrics', view_func=request_metrics_view, methods=['get', ])
bp.after_request(response_headers)
return bp
def make_doc():
""" Only used for sphinx documentation """
doc_app = Flask(__name__)
doc_app.register_blueprint(blueprint())
return doc_app