def register(registry_url, extra_data=None,
encode=None, decode=None, headers=None, timeout=None,
session=None):
"""
Request a node registry from the server.
If there is already a node registered in the local database, it
won't be used for the following operations. Additional data can be
passed to the request by giving *extra_data*, a dictionary of
values.
By default, the *encode* function is ``json.dumps``, the *decode*
function is ``json.loads``, and the *headers* are appropriate HTTP
headers for JSON.
"""
assert isinstance(registry_url, basestring), "registry url must be a string"
assert bool(registry_url), "registry url can't be empty"
if extra_data is not None:
assert isinstance(extra_data, dict), "extra data must be a dictionary"
code, reason, response = post_request(
registry_url, extra_data or {}, encode, decode, headers, timeout)
if (code // 100 != 2) or response is None:
raise RegisterRejected(code, reason, response)
message = RegisterMessage(response)
session.add(message.node)
return response
def request_push(
push_url, extra_data=None, encode=None, decode=None, headers=None, timeout=None, extensions=True, session=None
):
message = PushMessage()
message.latest_version_id = core.get_latest_version_id(session=session)
compress(session=session)
message.add_unversioned_operations(session=session, include_extensions=extensions)
message.set_node(session.query(Node).order_by(Node.node_id.desc()).first())
data = message.to_json()
data.update({"extra_data": extra_data or {}})
code, reason, response = post_request(push_url, data, encode, decode, headers, timeout)
if (code // 100 != 2) or response is None:
if suggests_pull is not None and suggests_pull(code, reason, response):
raise PullSuggested(code, reason, response)
raise PushRejected(code, reason, response)
new_version_id = response.get("new_version_id")
if new_version_id is None:
raise PushRejected(code, reason, {"error": "server didn't respond with new version id", "response": response})
# Who should set the dates? Maybe send a complete Version from the
# server. For now the field is ignored, so it doesn't matter.
session.add(Version(version_id=new_version_id, created=datetime.datetime.now()))
for op in message.operations:
op.version_id = new_version_id
# return the response for the programmer to do what she wants
# afterwards
return response
def request_push(push_url: str,
extra_data=None,
encode=None,
decode=None,
headers=None,
timeout=None,
extensions=True,
session=None) -> Dict[str, Any]:
message = PushMessage()
message.latest_version_id = core.get_latest_version_id(session=session)
compress(session=session)
message.add_unversioned_operations(session=session,
include_extensions=extensions)
if not message.operations:
return {}
message.set_node(session.query(Node).order_by(Node.node_id.desc()).first())
data = message.to_json()
data.update({'extra_data': extra_data or {}})
code, reason, response = post_request(push_url, data, encode, decode,
headers, timeout)
if (code // 100 != 2) or response is None:
if suggests_pull is not None and suggests_pull(code, reason, response):
raise PullSuggested(code, reason, response)
raise PushRejected(code, reason, response)
new_version_id = response.get('new_version_id')
if new_version_id is None:
raise PushRejected(
code, reason, {
'error': "server didn't respond with new version id",
'response': response
})
# Who should set the dates? Maybe send a complete Version from the
# server. For now the field is ignored, so it doesn't matter.
session.add(
Version(version_id=new_version_id, created=datetime.datetime.now()))
for op in message.operations:
op.version_id = new_version_id
# return the response for the programmer to do what she wants
# afterwards
return response
def pull(pull_url,
extra_data=None,
encode=None,
decode=None,
headers=None,
monitor=None,
timeout=None,
include_extensions=True):
"""
Attempts a pull from the server. Returns the response body.
Additional data can be passed to the request by giving
*extra_data*, a dictionary of values.
If not interrupted, the pull will perform a local merge. If the
response from the server isn't appropriate, it will raise a
dbysnc.client.pull.BadResponseError.
By default, the *encode* function is ``json.dumps``, the *decode*
function is ``json.loads``, and the *headers* are appropriate HTTP
headers for JSON.
*monitor* should be a routine that receives a dictionary with
information of the state of the request and merge procedure.
*include_extensions* dictates whether the extension functions will
be called during the merge or not. Default is ``True``.
"""
assert isinstance(pull_url, basestring), "pull url must be a string"
assert bool(pull_url), "pull url can't be empty"
if extra_data is not None:
assert isinstance(extra_data, dict), "extra data must be a dictionary"
request_message = PullRequestMessage()
for op in compress():
request_message.add_operation(op)
data = request_message.to_json()
data.update({'extra_data': extra_data or {}})
code, reason, response = post_request(pull_url, data, encode, decode,
headers, timeout, monitor)
if (code // 100 != 2):
if monitor:
monitor({'status': "error", 'reason': reason.lower()})
raise BadResponseError(code, reason, response)
if response is None:
if monitor:
monitor({'status': "error", 'reason': "invalid response format"})
raise BadResponseError(code, reason, response)
message = None
try:
message = PullMessage(response)
except KeyError:
if monitor:
monitor({'status': "error", 'reason': "invalid message format"})
raise BadResponseError("response object isn't a valid PullMessage",
response)
if monitor:
monitor({'status': "merging", 'operations': len(message.operations)})
merge(message, include_extensions=include_extensions)
if monitor:
monitor({'status': "done"})
# return the response for the programmer to do what she wants
# afterwards
return response
def pull(pull_url, extra_data=None,
encode=None, decode=None, headers=None, monitor=None, timeout=None,
include_extensions=True):
"""
Attempts a pull from the server. Returns the response body.
Additional data can be passed to the request by giving
*extra_data*, a dictionary of values.
If not interrupted, the pull will perform a local merge. If the
response from the server isn't appropriate, it will raise a
dbysnc.client.pull.BadResponseError.
By default, the *encode* function is ``json.dumps``, the *decode*
function is ``json.loads``, and the *headers* are appropriate HTTP
headers for JSON.
*monitor* should be a routine that receives a dictionary with
information of the state of the request and merge procedure.
*include_extensions* dictates whether the extension functions will
be called during the merge or not. Default is ``True``.
"""
assert isinstance(pull_url, basestring), "pull url must be a string"
assert bool(pull_url), "pull url can't be empty"
if extra_data is not None:
assert isinstance(extra_data, dict), "extra data must be a dictionary"
request_message = PullRequestMessage()
for op in compress(): request_message.add_operation(op)
data = request_message.to_json()
data.update({'extra_data': extra_data or {}})
code, reason, response = post_request(
pull_url, data, encode, decode, headers, timeout, monitor)
if (code // 100 != 2):
if monitor:
monitor({'status': "error", 'reason': reason.lower()})
raise BadResponseError(code, reason, response)
if response is None:
if monitor:
monitor({
'status': "error",
'reason': "invalid response format"})
raise BadResponseError(code, reason, response)
message = None
try:
message = PullMessage(response)
except KeyError:
if monitor:
monitor({
'status': "error",
'reason': "invalid message format"})
raise BadResponseError(
"response object isn't a valid PullMessage", response)
if monitor:
monitor({
'status': "merging",
'operations': len(message.operations)})
merge(message, include_extensions=include_extensions)
if monitor:
monitor({'status': "done"})
# return the response for the programmer to do what she wants
# afterwards
return response
