def exists(self):
"""
return True if we can HEAD the key
"""
found = False
if self._bucket is None:
raise ValueError("No bucket")
if self._name is None:
raise ValueError("No name")
method = "HEAD"
uri = compute_uri("data", self._name)
http_connection = self._bucket.create_http_connection()
self._log.info("requesting HEAD %s" % (uri, ))
try:
response = http_connection.request(method, uri, body=None)
except LumberyardHTTPError, instance:
if instance.status == 404: # not found
pass
else:
self._log.error(str(instance))
http_connection.close()
raise
def configure_versioning(self, versioning):
"""
set the bucket's versioning property to True or False
"""
http_connection = HTTPConnection(
compute_default_hostname(),
self._identity.user_name,
self._identity.auth_key,
self._identity.auth_key_id
)
method = "PUT"
uri = compute_uri(
"/".join([
"customers",
self._identity.user_name,
"collections",
self._collection_name
]),
versioning=repr(versioning)
)
self._log.info("putting {0}".format(uri))
response = http_connection.request(method, uri)
data = response.read()
http_connection.close()
result = json.loads(data.decode("utf-8"))
assert result["success"]
self._versioning = versioning
def initiate_multipart_upload(self, key_name):
"""
key_name
the key name
"""
kwargs = {
"action" : "start"
}
# TODO: boto allows meta data here
method = "POST"
uri = compute_uri("conjoined", key_name, **kwargs)
http_connection = self.create_http_connection()
self._log.info("posting {0}".format(uri))
response = http_connection.request(method, uri)
data = response.read()
http_connection.close()
result_dict = json.loads(data.decode("utf-8"))
return MultiPartUpload(bucket=self, **result_dict)
def delete_bucket(self, bucket_name):
"""
remove (an empty) bucket from nimbus.io
This operation will fail if the collection contains any active keys.
When tis operaton succeeds, the colection/bucket name is available for
re-use.
"""
method = "DELETE"
http_connection = HTTPConnection(compute_default_hostname(),
self._identity.user_name,
self._identity.auth_key,
self._identity.auth_key_id)
if bucket_name.startswith("/"):
bucket_name = bucket_name[1:]
uri = compute_uri(
"/".join([
"customers", self._identity.user_name, "collections",
bucket_name
]), )
self._log.info("requesting {0}".format(uri))
try:
response = http_connection.request(method, uri, body=None)
except LumberyardHTTPError:
instance = sys.exc_info()[1]
self._log.error(str(instance))
http_connection.close()
raise
response.read()
http_connection.close()
def _retrieve_key_to_string(collection_name, key_name):
http_connection = \
UnAuthHTTPConnection(compute_collection_hostname(collection_name))
kwargs = {"version_identifier" : None, }
headers = {}
expected_status = OK
method = "GET"
uri = compute_uri("data", key_name, **kwargs)
response = http_connection.request(method,
uri,
body=None,
headers=headers,
expected_status=expected_status)
body_list = list()
while True:
data = response.read(_read_buffer_size)
if len(data) == 0:
break
body_list.append(data)
http_connection.close()
return b"".join(body_list)
def _retrieve_key(args, identity, ncl_dict):
method = "GET"
hostname = compute_collection_hostname(ncl_dict["collection_name"])
if identity is None:
http_connection = UnAuthHTTPConnection(hostname)
else:
http_connection = HTTPConnection(hostname,
identity.user_name,
identity.auth_key,
identity.auth_key_id)
kwargs = {
}
uri = compute_uri("data", ncl_dict["key"], **kwargs)
response = http_connection.request(method,
uri,
body=None)
while True:
data = response.read(_read_buffer_size)
if len(data) == 0:
break
sys.stdout.buffer.write(data)
http_connection.close()
def get_contents_to_file(self, file_object, cb=None, cb_count=10):
"""
return the contents from lumberyard to a file
"""
if self._bucket is None:
raise ValueError("No bucket")
if self._name is None:
raise ValueError("No name")
method = "GET"
uri = compute_uri("data", self._name)
http_connection = self._bucket.create_http_connection()
self._log.info("requesting GET %s" % (uri, ))
response = http_connection.request(method, uri, body=None)
if cb is None:
reporter = NullCallbackWrapper()
else:
reporter = RetrieveCallbackWrapper(self.size, cb, cb_count)
self._log.info("reading response")
reporter.start()
while True:
data = response.read(_read_buffer_size)
bytes_read = len(data)
if bytes_read == 0:
break
file_object.write(data)
reporter.bytes_written(bytes_read)
reporter.finish()
http_connection.close()
def get_metadata(self, meta_key):
# If we have it local, pass it on
if meta_key in self._metadata:
return self._metadata[meta_key]
found = False
method = "GET"
if self._bucket is None:
raise ValueError("No bucket")
if self._name is None:
raise ValueError("No name")
http_connection = self._bucket.create_http_connection()
kwargs = {
"action" : "get_meta",
"meta_key" : meta_key,
}
uri = compute_uri("data", self._name, **kwargs)
self._log.info("requesting GET %s" % (uri, ))
try:
response = http_connection.request(method, uri, body=None)
except LumberyardHTTPError, instance:
if instance.status == 404: # not found
pass
else:
self._log.error(str(instance))
http_connection.close()
raise
def _retrieve_key_to_string(collection_name, key_name):
http_connection = \
UnAuthHTTPConnection(compute_collection_hostname(collection_name))
kwargs = {
"version_identifier": None,
}
headers = {}
expected_status = OK
method = "GET"
uri = compute_uri("data", key_name, **kwargs)
response = http_connection.request(method,
uri,
body=None,
headers=headers,
expected_status=expected_status)
body_list = list()
while True:
data = response.read(_read_buffer_size)
if len(data) == 0:
break
body_list.append(data)
http_connection.close()
return b"".join(body_list)
def get_space_used(self):
"""
get disk space statistics for this bucket
"""
http_connection = HTTPConnection(
compute_default_hostname(),
self._config.user_name,
self._config.auth_key,
self._config.auth_key_id
)
method = "GET"
uri = compute_uri(
"/".join([
"customers",
self._config.user_name,
"collections",
self._collection_name
]),
action="space_usage"
)
response = http_connection.request(method, uri)
data = response.read()
http_connection.close()
return json.loads(data)
def get_contents_as_string(self, cb=None, cb_count=10):
"""
return the contents from lumberyard as a string
"""
if self._bucket is None:
raise ValueError("No bucket")
if self._name is None:
raise ValueError("No name")
method = "GET"
uri = compute_uri("data", self._name)
http_connection = self._bucket.create_http_connection()
self._log.info("requesting GET %s" % (uri, ))
response = http_connection.request(method, uri, body=None)
body_list = list()
while True:
data = response.read(_read_buffer_size)
if len(data) == 0:
break
body_list.append(data)
http_connection.close()
return "".join(body_list)
def set_contents_from_string(
self, data, replace=True, cb=None, cb_count=10
):
"""
store the content of the string in the lumberyard
"""
if self._bucket is None:
raise ValueError("No bucket")
if self._name is None:
raise ValueError("No name")
# 2011-08-07 dougfort -- If they don't want to replace,
# stop them right here.
if not replace:
if self.exists():
raise KeyError("attempt to replace key %r" % (self._name))
kwargs = {}
for meta_key, meta_value in self._metadata.items():
kwargs["".join([meta_prefix, meta_key])] = meta_value
method = "POST"
uri = compute_uri("data", self._name, **kwargs)
http_connection = self._bucket.create_http_connection()
self._log.info("posting %s" % (uri, ))
response = http_connection.request(method, uri, body=data)
response.read()
http_connection.close()
def delete_bucket(self, bucket_name):
method = "DELETE"
http_connection = HTTPConnection(
compute_default_hostname(),
self._config.user_name,
self._config.auth_key,
self._config.auth_key_id
)
if bucket_name.startswith("/"):
bucket_name = bucket_name[1:]
uri = compute_uri(
"/".join([
"customers",
self._config.user_name,
"collections",
bucket_name
]),
)
self._log.info("requesting %s" % (uri, ))
try:
response = http_connection.request(method, uri, body=None)
except LumberyardHTTPError, instance:
self._log.error(str(instance))
http_connection.close()
raise
def set_contents_from_file(self, file_object, replace=True, cb=None, cb_count=10, multipart_id=None, part_num=0):
"""
file_object
a file-like object opened to the file to be archived. Must support
read().
replace
True if existing contents are to be written over.
(this argument is ignored by motoboto)
cb
callback function for reporting progress
cb_count
number of callbacks to be made during the archvie process
multipart_id
identifier of multipart upload
part_num
part number of multipart upload
archive the content of the file in nimbus.io
"""
if self._bucket is None:
raise ValueError("No bucket")
if self._name is None:
raise ValueError("No name")
wrapper = None
if cb is None:
body = file_object
else:
body = ReadReporter(file_object)
wrapper = ArchiveCallbackWrapper(body, cb, cb_count)
kwargs = {"conjoined_identifier": multipart_id}
if part_num > 0:
kwargs["conjoined_part"] = part_num
for meta_key, meta_value in self._metadata:
kwargs["".join([meta_prefix, meta_key])] = meta_value
method = "POST"
uri = compute_uri("data", self._name, **kwargs)
http_connection = self._bucket.create_http_connection()
self._log.info("requesting POST {0}".format(uri))
response = http_connection.request(method, uri, body=body)
response_str = response.read()
http_connection.close()
response_dict = json.loads(response_str.decode("utf-8"))
self._version_id = response_dict["version_identifier"]
def exists(self, modified_since=None, unmodified_since=None):
"""
return True if we can HEAD the key, and it fits one of the
optional date_modified restrctions.
Not that you cannot specify both modified_since and unmodified_since
"""
found = False
if self._bucket is None:
raise ValueError("No bucket")
if self._name is None:
raise ValueError("No name")
if modified_since is not None and unmodified_since is not None:
raise ValueError(
"Can't specify both modified_since and unmodified_since")
method = "HEAD"
uri = compute_uri("data", self._name)
headers = {}
if modified_since is not None:
timestamp = datetime.utcfromtimestamp(modified_since)
headers["If-Modified-Since"] = http_timestamp_str(timestamp)
if unmodified_since is not None:
timestamp = datetime.utcfromtimestamp(unmodified_since)
headers["If-Unmodified-Since"] = http_timestamp_str(timestamp)
http_connection = self._bucket.create_http_connection()
self._log.info("requesting HEAD {0} {1}".format(uri, headers))
try:
response = http_connection.request(method,
uri,
body=None,
headers=headers)
except LumberyardHTTPError:
instance = sys.exc_info()[1]
# not modified, not found, precondition not met
if instance.status in [304, 404, 412]:
pass
else:
self._log.error(str(instance))
http_connection.close()
raise
else:
found = True
if found:
response.read()
http_connection.close()
return found
def set_contents_from_string(self, data, replace=True, cb=None, cb_count=10, multipart_id=None, part_num=0):
"""
data
the string to archive
replace
True if existing contents are to be written over.
(this argument is ignored by motoboto)
cb
callback function for reporting progress
cb_count
number of callbacks to be made during the archvie process
multipart_id
identifier of multipart upload
part_num
part number of multipart upload
archive the content of the string into nimbus.io
sets version_id attribute after successful archive
"""
if self._bucket is None:
raise ValueError("No bucket")
if self._name is None:
raise ValueError("No name")
kwargs = {"conjoined_identifier": multipart_id}
if part_num > 0:
kwargs["conjoined_part"] = part_num
for meta_key, meta_value in self._metadata.items():
kwargs["".join([meta_prefix, meta_key])] = meta_value
method = "POST"
uri = compute_uri("data", self._name, **kwargs)
http_connection = self._bucket.create_http_connection()
self._log.info("posting {0}".format(uri))
response = http_connection.request(method, uri, body=data)
response_str = response.read()
http_connection.close()
response_dict = json.loads(response_str.decode("utf-8"))
self._version_id = response_dict["version_identifier"]
def get_all_keys(self):
"""return a list of all keys in this bucket"""
method = "GET"
http_connection = self.create_http_connection()
uri = compute_uri("data/")
response = http_connection.request(method, uri)
data = response.read()
http_connection.close()
data_list = json.loads(data)
return [Key(bucket=self, name=n) for n in data_list]
def _delete_key(collection_name, key_name):
http_connection = \
UnAuthHTTPConnection(compute_collection_hostname(collection_name))
kwargs = dict()
method = "DELETE"
uri = compute_uri("data", key_name, **kwargs)
response = http_connection.request(method, uri, body=None)
data = response.read()
http_connection.close()
return json.loads(data.decode("utf-8"))
def _delete_key(collection_name, key_name):
http_connection = \
UnAuthHTTPConnection(compute_collection_hostname(collection_name))
kwargs = dict()
method = "DELETE"
uri = compute_uri("data", key_name, **kwargs)
response = http_connection.request(method, uri, body=None)
data = response.read()
http_connection.close()
return json.loads(data.decode("utf-8"))
def exists(self, modified_since=None, unmodified_since=None):
"""
return True if we can HEAD the key, and it fits one of the
optional date_modified restrctions.
Not that you cannot specify both modified_since and unmodified_since
"""
found = False
if self._bucket is None:
raise ValueError("No bucket")
if self._name is None:
raise ValueError("No name")
if modified_since is not None and unmodified_since is not None:
raise ValueError("Can't specify both modified_since and unmodified_since")
method = "HEAD"
uri = compute_uri("data", self._name)
headers = {}
if modified_since is not None:
timestamp = datetime.utcfromtimestamp(modified_since)
headers["If-Modified-Since"] = http_timestamp_str(timestamp)
if unmodified_since is not None:
timestamp = datetime.utcfromtimestamp(unmodified_since)
headers["If-Unmodified-Since"] = http_timestamp_str(timestamp)
http_connection = self._bucket.create_http_connection()
self._log.info("requesting HEAD {0} {1}".format(uri, headers))
try:
response = http_connection.request(method, uri, body=None, headers=headers)
except LumberyardHTTPError:
instance = sys.exc_info()[1]
# not modified, not found, precondition not met
if instance.status in [304, 404, 412]:
pass
else:
self._log.error(str(instance))
http_connection.close()
raise
else:
found = True
if found:
response.read()
http_connection.close()
return found
def _archive_key_from_string(collection_name, key_name, data):
http_connection = \
UnAuthHTTPConnection(compute_collection_hostname(collection_name))
kwargs = {"conjoined_identifier": None}
method = "POST"
uri = compute_uri("data", key_name, **kwargs)
response = http_connection.request(method, uri, body=data)
response_str = response.read()
http_connection.close()
return json.loads(response_str.decode("utf-8"))
def _list_keys(collection_name):
http_connection = \
UnAuthHTTPConnection(compute_collection_hostname(collection_name))
method = "GET"
kwargs = {"max_keys" : 1000, }
uri = compute_uri("data/", **kwargs)
response = http_connection.request(method, uri)
data = response.read()
http_connection.close()
return json.loads(data.decode("utf-8"))
def _archive_key_from_string(collection_name, key_name, data):
http_connection = \
UnAuthHTTPConnection(compute_collection_hostname(collection_name))
kwargs = {"conjoined_identifier" : None}
method = "POST"
uri = compute_uri("data", key_name, **kwargs)
response = http_connection.request(method, uri, body=data)
response_str = response.read()
http_connection.close()
return json.loads(response_str.decode("utf-8"))
def _head_key(collection_name, key_name):
http_connection = \
UnAuthHTTPConnection(compute_collection_hostname(collection_name))
kwargs = dict()
method = "HEAD"
uri = compute_uri("data", key_name, **kwargs)
response = http_connection.request(method, uri, body=None)
_ = response.read()
headers = response.getheaders()
http_connection.close()
return headers
def _head_key(collection_name, key_name):
http_connection = \
UnAuthHTTPConnection(compute_collection_hostname(collection_name))
kwargs = dict()
method = "HEAD"
uri = compute_uri("data", key_name, **kwargs)
response = http_connection.request(method, uri, body=None)
_ = response.read()
headers = response.getheaders()
http_connection.close()
return headers
def get_metadata(self, meta_key):
"""
return the meta_value associated with the meta_key
returns None if the meta_key (or the key itself) does not exist.
"""
# If we have it local, pass it on
if meta_key in self._metadata:
return self._metadata[meta_key]
method = "GET"
if self._bucket is None:
raise ValueError("No bucket")
if self._name is None:
raise ValueError("No name")
http_connection = self._bucket.create_http_connection()
kwargs = {
"action": "meta",
}
uri = compute_uri("data", self._name, **kwargs)
self._log.info("requesting GET {0}".format(uri))
try:
response = http_connection.request(method, uri, body=None)
except LumberyardHTTPError:
instance = sys.exc_info()[1]
http_connection.close()
if instance.status == NOT_FOUND:
self._log.warn("key not found retrieving meta")
return None
self._log.error(str(instance))
raise
data = response.read()
http_connection.close()
self.update_metadata(json.loads(data.decode("utf-8")))
return self._metadata.get(meta_key)
def _list_keys(collection_name):
http_connection = \
UnAuthHTTPConnection(compute_collection_hostname(collection_name))
method = "GET"
kwargs = {
"max_keys": 1000,
}
uri = compute_uri("data/", **kwargs)
response = http_connection.request(method, uri)
data = response.read()
http_connection.close()
return json.loads(data.decode("utf-8"))
def _space_usage(args, identity, ncl_dict):
method = "GET"
if identity is None:
raise InvalidIdentity("Must have identity to retrieve space usage")
http_connection = HTTPConnection(compute_default_hostname(),
identity.user_name, identity.auth_key,
identity.auth_key_id)
kwargs = {"action": "space_usage"}
if "days" in ncl_dict:
kwargs["days_of_history"] = ncl_dict["days"]
path = "/".join([
"customers", identity.user_name, "collections",
ncl_dict["collection_name"]
])
uri = compute_uri(path, **kwargs)
response = http_connection.request(method, uri, body=None)
data = response.read()
http_connection.close()
result = json.loads(data.decode("utf-8"))
if not result["success"]:
raise NCLErrorResult(result["error_message"])
print()
for day_entry in result["operational_stats"]:
print(day_entry["day"])
if day_entry["archive_success"] != 0:
print("{0:8} archive success".format(day_entry["archive_success"]))
print("{0:8} archive bytes".format(day_entry["success_bytes_in"]))
if day_entry["retrieve_success"] != 0:
print("{0:8} retrieve success".format(
day_entry["retrieve_success"]))
print("{0:8} retrieve bytes".format(
day_entry["success_bytes_out"]))
if day_entry["delete_success"] != 0:
print("{0:8} delete success".format(day_entry["delete_success"]))
if day_entry["listmatch_success"] != 0:
print("{0:8} listmatch success".format(
day_entry["listmatch_success"]))
def get_metadata(self, meta_key):
"""
return the meta_value associated with the meta_key
returns None if the meta_key (or the key itself) does not exist.
"""
# If we have it local, pass it on
if meta_key in self._metadata:
return self._metadata[meta_key]
method = "GET"
if self._bucket is None:
raise ValueError("No bucket")
if self._name is None:
raise ValueError("No name")
http_connection = self._bucket.create_http_connection()
kwargs = {"action": "meta"}
uri = compute_uri("data", self._name, **kwargs)
self._log.info("requesting GET {0}".format(uri))
try:
response = http_connection.request(method, uri, body=None)
except LumberyardHTTPError:
instance = sys.exc_info()[1]
http_connection.close()
if instance.status == NOT_FOUND:
self._log.warn("key not found retrieving meta")
return None
self._log.error(str(instance))
raise
data = response.read()
http_connection.close()
self.update_metadata(json.loads(data.decode("utf-8")))
return self._metadata.get(meta_key)
def _list_collection(args, identity, ncl_dict):
method = "GET"
http_connection = HTTPConnection(compute_default_hostname(),
identity.user_name, identity.auth_key,
identity.auth_key_id)
path = "/".join([
"customers", identity.user_name, "collections",
ncl_dict["collection_name"]
])
uri = compute_uri(path)
response = http_connection.request(method, uri, body=None)
data = response.read()
http_connection.close()
result = json.loads(data.decode("utf-8"))
print(str(result))
def get_all_multipart_uploads(
self, max_uploads=1000, key_marker="", upload_id_marker=""
):
"""
max_uploads
The maximum number of keys to retrieve
key_marker
The retrieve starts on the next key after this one
upload_id_marker
if key_marker is specfied, only include uploads with upload_id
greater than this value
return a list of all keys in this collection
"""
method = "GET"
http_connection = self.create_http_connection()
kwargs = {
"max_uploads" : max_uploads,
}
if key_marker != "" and key_marker is not None:
kwargs["key_marker"] = key_marker
if upload_id_marker != "" and upload_id_marker is not None:
kwargs["upload_id_marker"] = upload_id_marker
uri = compute_uri("conjoined/", **kwargs)
response = http_connection.request(method, uri)
data = response.read()
http_connection.close()
data_dict = json.loads(data.decode("utf-8"))
result_list = TruncatableList()
for conjoined_dict in data_dict["conjoined_list"]:
result_list.append(MultiPartUpload(bucket=self, **conjoined_dict)
)
result_list.truncated = data_dict["truncated"]
return result_list
def _list_collection(args, identity, ncl_dict):
method = "GET"
http_connection = HTTPConnection(compute_default_hostname(),
identity.user_name,
identity.auth_key,
identity.auth_key_id)
path = "/".join(["customers",
identity.user_name,
"collections",
ncl_dict["collection_name"]])
uri = compute_uri(path)
response = http_connection.request(method, uri, body=None)
data = response.read()
http_connection.close()
result = json.loads(data.decode("utf-8"))
print(str(result))
def delete(self):
"""
delete this key from the system
"""
if self._bucket is None:
raise ValueError("No bucket")
if self._name is None:
raise ValueError("No name")
method = "DELETE"
uri = compute_uri("data", self._name)
http_connection = self._bucket.create_http_connection()
self._log.info("requesting DELETE %s" % (uri, ))
response = http_connection.request(method, uri, body=None)
response.read()
http_connection.close()
def _create_collection(args, identity, ncl_dict):
method = "POST"
http_connection = HTTPConnection(compute_default_hostname(),
identity.user_name, identity.auth_key,
identity.auth_key_id)
path = "/".join(["customers", identity.user_name, "collections"])
uri = compute_uri(path, action="create", name=ncl_dict["collection_name"])
response = http_connection.request(method,
uri,
body=None,
expected_status=CREATED)
data = response.read()
http_connection.close()
result = json.loads(data.decode("utf-8"))
print(str(result))
def _space_usage(args, identity, ncl_dict):
method = "GET"
if identity is None:
raise InvalidIdentity("Must have identity to retrieve space usage")
http_connection = HTTPConnection(compute_default_hostname(),
identity.user_name,
identity.auth_key,
identity.auth_key_id)
kwargs = {"action" : "space_usage"}
if "days" in ncl_dict:
kwargs["days_of_history"] = ncl_dict["days"]
path = "/".join(["customers",
identity.user_name,
"collections",
ncl_dict["collection_name"]])
uri = compute_uri(path, **kwargs)
response = http_connection.request(method, uri, body=None)
data = response.read()
http_connection.close()
result = json.loads(data.decode("utf-8"))
if not result["success"]:
raise NCLErrorResult(result["error_message"])
print()
for day_entry in result["operational_stats"]:
print(day_entry["day"])
if day_entry["archive_success"] != 0:
print("{0:8} archive success".format(day_entry["archive_success"]))
print("{0:8} archive bytes".format(day_entry["success_bytes_in"]))
if day_entry["retrieve_success"] != 0:
print("{0:8} retrieve success".format(day_entry["retrieve_success"]))
print("{0:8} retrieve bytes".format(day_entry["success_bytes_out"]))
if day_entry["delete_success"] != 0:
print("{0:8} delete success".format(day_entry["delete_success"]))
if day_entry["listmatch_success"] != 0:
print("{0:8} listmatch success".format(day_entry["listmatch_success"]))
def _create_collection(args, identity, ncl_dict):
method = "POST"
http_connection = HTTPConnection(compute_default_hostname(),
identity.user_name,
identity.auth_key,
identity.auth_key_id)
path = "/".join(["customers", identity.user_name, "collections"])
uri = compute_uri(path, action="create", name=ncl_dict["collection_name"])
response = http_connection.request(method,
uri,
body=None,
expected_status=CREATED)
data = response.read()
http_connection.close()
result = json.loads(data.decode("utf-8"))
print(str(result))
def _list_collections(args, identity, ncl_dict):
method = "GET"
if identity is None:
raise InvalidIdentity("Must have identity to list collections")
http_connection = HTTPConnection(compute_default_hostname(),
identity.user_name, identity.auth_key,
identity.auth_key_id)
path = "/".join(["customers", identity.user_name, "collections"])
uri = compute_uri(path)
response = http_connection.request(method, uri, body=None)
data = response.read()
http_connection.close()
result = json.loads(data.decode("utf-8"))
# TODO: add an option for verbose list
for entry in result:
print(entry["name"])
def get_all_buckets(self):
method = "GET"
http_connection = HTTPConnection(
compute_default_hostname(),
self._config.user_name,
self._config.auth_key,
self._config.auth_key_id
)
uri = compute_uri(
"/".join(["customers", self._config.user_name, "collections"]),
)
self._log.info("requesting %s" % (uri, ))
try:
response = http_connection.request(method, uri, body=None)
except LumberyardHTTPError, instance:
self._log.error(str(instance))
http_connection.close()
raise
def _list_keys(args, identity, ncl_dict):
method = "GET"
hostname = compute_collection_hostname(ncl_dict["collection_name"])
if identity is None:
http_connection = UnAuthHTTPConnection(hostname)
else:
http_connection = HTTPConnection(hostname,
identity.user_name,
identity.auth_key,
identity.auth_key_id)
kwargs = {
"max_keys" : _max_keys,
}
if "prefix" in ncl_dict and ncl_dict["prefix"] != "" and \
ncl_dict["prefix"] is not None:
kwargs["prefix"] = ncl_dict["prefix"]
if "marker" in ncl_dict and ncl_dict["marker"] != "" and \
ncl_dict["marker"] is not None:
kwargs["marker"] = ncl_dict["marker"]
if "delimiter" in ncl_dict and ncl_dict["delimiter"] != "" and \
ncl_dict["delimiter"] is not None:
kwargs["delimiter"] = ncl_dict["delimiter"]
uri = compute_uri("data/", **kwargs)
response = http_connection.request(method, uri)
data = response.read()
http_connection.close()
data_dict = json.loads(data.decode("utf-8"))
if "key_data" in data_dict:
for key_entry in data_dict["key_data"]:
print(key_entry["key"])
elif "prefixes" in data_dict:
for prefix in data_dict["prefixes"]:
print(prefix)
else:
raise ValueError("Unexpected return value {0}".format(data_dict))
def get_all_buckets(self):
"""
List all collections for the user
returns a list of motoboto.s3.Bucket objects
"""
method = "GET"
http_connection = HTTPConnection(
compute_default_hostname(),
self._identity.user_name,
self._identity.auth_key,
self._identity.auth_key_id
)
uri = compute_uri(
"/".join(["customers", self._identity.user_name, "collections"]),
)
self._log.info("requesting {0}".format(uri))
try:
response = http_connection.request(method, uri, body=None)
except LumberyardHTTPError:
instance = sys.exc_info()[1]
self._log.error(str(instance))
http_connection.close()
raise
self._log.info("reading response")
data = response.read()
http_connection.close()
collection_list = json.loads(data.decode("utf-8"))
bucket_list = list()
for collection_dict in collection_list:
bucket = Bucket(
self._identity,
collection_dict["name"],
versioning=collection_dict["versioning"]
)
bucket_list.append(bucket)
return bucket_list
def cancel_upload(self):
"""
Cancels a MultiPart Upload operation. The storage consumed by any
previously uploaded parts will be freed.
"""
kwargs = {
"action" : "abort",
"conjoined_identifier" : self._conjoined_identifier,
}
method = "POST"
uri = compute_uri("conjoined", self.key_name, **kwargs)
http_connection = self._bucket.create_http_connection()
self._log.info("posting {0}".format(uri))
response = http_connection.request(method, uri)
response.read()
http_connection.close()
def _list_collections(args, identity, ncl_dict):
method = "GET"
if identity is None:
raise InvalidIdentity("Must have identity to list collections")
http_connection = HTTPConnection(compute_default_hostname(),
identity.user_name,
identity.auth_key,
identity.auth_key_id)
path = "/".join(["customers", identity.user_name, "collections"])
uri = compute_uri(path)
response = http_connection.request(method, uri, body=None)
data = response.read()
http_connection.close()
result = json.loads(data.decode("utf-8"))
# TODO: add an option for verbose list
for entry in result:
print(entry["name"])
def _list_keys(args, identity, ncl_dict):
method = "GET"
hostname = compute_collection_hostname(ncl_dict["collection_name"])
if identity is None:
http_connection = UnAuthHTTPConnection(hostname)
else:
http_connection = HTTPConnection(hostname, identity.user_name,
identity.auth_key,
identity.auth_key_id)
kwargs = {
"max_keys": _max_keys,
}
if "prefix" in ncl_dict and ncl_dict["prefix"] != "" and \
ncl_dict["prefix"] is not None:
kwargs["prefix"] = ncl_dict["prefix"]
if "marker" in ncl_dict and ncl_dict["marker"] != "" and \
ncl_dict["marker"] is not None:
kwargs["marker"] = ncl_dict["marker"]
if "delimiter" in ncl_dict and ncl_dict["delimiter"] != "" and \
ncl_dict["delimiter"] is not None:
kwargs["delimiter"] = ncl_dict["delimiter"]
uri = compute_uri("data/", **kwargs)
response = http_connection.request(method, uri)
data = response.read()
http_connection.close()
data_dict = json.loads(data.decode("utf-8"))
if "key_data" in data_dict:
for key_entry in data_dict["key_data"]:
print(key_entry["key"])
elif "prefixes" in data_dict:
for prefix in data_dict["prefixes"]:
print(prefix)
else:
raise ValueError("Unexpected return value {0}".format(data_dict))
def delete(self, version_id=None):
"""
delete this key from the nimbus.io collection
"""
if self._bucket is None:
raise ValueError("No bucket")
if self._name is None:
raise ValueError("No name")
kwargs = dict()
if version_id is not None:
kwargs["version_identifier"] = version_id
method = "DELETE"
uri = compute_uri("data", self._name, **kwargs)
http_connection = self._bucket.create_http_connection()
self._log.info("requesting DELETE {0}".format(uri))
response = http_connection.request(method, uri, body=None)
response.read()
http_connection.close()
def complete_upload(self):
"""
Complete the MultiPart Upload operation.
This method should be called when all parts of the file have been
successfully uploaded.
"""
kwargs = {
"action" : "finish",
"conjoined_identifier" : self._conjoined_identifier,
}
method = "POST"
uri = compute_uri("conjoined", self.key_name, **kwargs)
http_connection = self._bucket.create_http_connection()
self._log.info("posting {0}".format(uri))
response = http_connection.request(method, uri)
response.read()
http_connection.close()
def get_all_buckets(self):
"""
List all collections for the user
returns a list of motoboto.s3.Bucket objects
"""
method = "GET"
http_connection = HTTPConnection(compute_default_hostname(),
self._identity.user_name,
self._identity.auth_key,
self._identity.auth_key_id)
uri = compute_uri(
"/".join(["customers", self._identity.user_name, "collections"]), )
self._log.info("requesting {0}".format(uri))
try:
response = http_connection.request(method, uri, body=None)
except LumberyardHTTPError:
instance = sys.exc_info()[1]
self._log.error(str(instance))
http_connection.close()
raise
self._log.info("reading response")
data = response.read()
http_connection.close()
collection_list = json.loads(data.decode("utf-8"))
bucket_list = list()
for collection_dict in collection_list:
bucket = Bucket(self._identity,
collection_dict["name"],
versioning=collection_dict["versioning"])
bucket_list.append(bucket)
return bucket_list
def _retrieve_key(args, identity, ncl_dict):
method = "GET"
hostname = compute_collection_hostname(ncl_dict["collection_name"])
if identity is None:
http_connection = UnAuthHTTPConnection(hostname)
else:
http_connection = HTTPConnection(hostname, identity.user_name,
identity.auth_key,
identity.auth_key_id)
kwargs = {}
uri = compute_uri("data", ncl_dict["key"], **kwargs)
response = http_connection.request(method, uri, body=None)
while True:
data = response.read(_read_buffer_size)
if len(data) == 0:
break
sys.stdout.buffer.write(data)
http_connection.close()
def get_contents_to_file(self,
file_object,
cb=None,
cb_count=10,
version_id=None,
slice_offset=None,
slice_size=None,
modified_since=None,
unmodified_since=None,
resumable=False,
res_download_handler=None):
"""
file_object
Python file-like object, must support write()
must support seek() and tell() for resumable=True
cb
callback function for reporting progress
cb_count
number of callbacks to be made during the archvie process
version_id
identifier of a specific version to retrieve
None means retrieve the most recent version
slice_offset
byte offset for start of retrieve
None means start at byte 0
slice_size
number of bytes to retrieve
None means retrieve to end of file
modified_since
only retrieve the file if it has been modified since the specified
timestamp.
Otherwise: raise KeyUnmodified
Note: you cannot specify both modified_since and unmodified_since
unmodified_since
only retrieve the file if it has not been modified since the
specified timestamp.
Otherwise: raise KeyModified
Note: you cannot specify both modified_since and unmodified_since
resumable
True means append to an existing file if there is one
res_download_handler
included for boto compatibility. We have a
ResumeableDownloadHandler object, but actually if you put
anything besides None in this argument, it has the same effect
as setting resumable to True.
retrieve the contents from nimbus.io to a file
"""
if self._bucket is None:
raise ValueError("No bucket")
if self._name is None:
raise ValueError("No name")
if modified_since is not None and unmodified_since is not None:
raise ValueError(
"Can't specify both modified_since and unmodified_since")
kwargs = {
"version_identifier": version_id,
}
if resumable == True or res_download_handler is not None:
file_object.seek(0, os.SEEK_END)
current_file_size = file_object.tell()
if slice_size is not None:
assert current_file_size < slice_size
slice_size -= current_file_size
if slice_offset is not None:
slice_offset += current_file_size
else:
slice_offset = current_file_size
headers = {}
_convert_slice_to_range_header(headers, slice_offset, slice_size)
expected_status = (PARTIAL_CONTENT if "Range" in headers else OK)
if modified_since is not None:
timestamp = datetime.utcfromtimestamp(modified_since)
headers["If-Modified-Since"] = http_timestamp_str(timestamp)
if unmodified_since is not None:
timestamp = datetime.utcfromtimestamp(unmodified_since)
headers["If-Unmodified-Since"] = http_timestamp_str(timestamp)
method = "GET"
uri = compute_uri("data", self._name, **kwargs)
http_connection = self._bucket.create_http_connection()
self._log.info("requesting GET {0} {1}".format(uri, headers))
try:
response = http_connection.request(method,
uri,
body=None,
headers=headers,
expected_status=expected_status)
except LumberyardHTTPError:
instance = sys.exc_info()[1]
http_connection.close()
if instance.status == NOT_MODIFIED and modified_since is not None:
raise KeyUnmodified()
if instance.status == PRECONDITION_FAILED and \
unmodified_since is not None:
raise KeyModified()
raise
if cb is None:
reporter = NullCallbackWrapper()
else:
reporter = RetrieveCallbackWrapper(self.size, cb, cb_count)
self._log.info("reading response")
reporter.start()
while True:
data = response.read(_read_buffer_size)
bytes_read = len(data)
self._log.debug("read {0} bytes".format(bytes_read))
if bytes_read == 0:
break
file_object.write(data)
reporter.bytes_written(bytes_read)
reporter.finish()
http_connection.close()
def get_contents_as_string(self,
cb=None,
cb_count=10,
version_id=None,
slice_offset=None,
slice_size=None,
modified_since=None,
unmodified_since=None):
"""
cb
callback function for reporting progress
cb_count
number of callbacks to be made during the archvie process
version_id
the identifier of a specific version to retrieve
None means retrieve the most recent version
slice_offset
byte offset for start of retrieve
None means start at byte 0
slice_size
number of bytes to retrieve
None means retrieve to end of file
modified_since
only retrieve the file if it has been modified since the specified
timestamp.
Otherwise: raise KeyUnmodified
Note: you cannot specify both modified_since and unmodified_since
unmodified_since
only retrieve the file if it has not been modified since the
specified timestamp.
Otherwise: raise KeyModified
Note: you cannot specify both modified_since and unmodified_since
retrieve the contents from nimbus.io as a string
"""
if self._bucket is None:
raise ValueError("No bucket")
if self._name is None:
raise ValueError("No name")
if modified_since is not None and unmodified_since is not None:
raise ValueError(
"Can't specify both modified_since and unmodified_since")
kwargs = {
"version_identifier": version_id,
}
headers = {}
_convert_slice_to_range_header(headers, slice_offset, slice_size)
expected_status = (PARTIAL_CONTENT if "Range" in headers else OK)
if modified_since is not None:
timestamp = datetime.utcfromtimestamp(modified_since)
headers["If-Modified-Since"] = http_timestamp_str(timestamp)
if unmodified_since is not None:
timestamp = datetime.utcfromtimestamp(unmodified_since)
headers["If-Unmodified-Since"] = http_timestamp_str(timestamp)
method = "GET"
uri = compute_uri("data", self._name, **kwargs)
http_connection = self._bucket.create_http_connection()
self._log.info("requesting GET {0} {1}".format(uri, headers))
try:
response = http_connection.request(method,
uri,
body=None,
headers=headers,
expected_status=expected_status)
except LumberyardHTTPError:
instance = sys.exc_info()[1]
http_connection.close()
if instance.status == NOT_MODIFIED and modified_since is not None:
raise KeyUnmodified()
if instance.status == PRECONDITION_FAILED and \
unmodified_since is not None:
raise KeyModified()
raise
body_list = list()
while True:
data = response.read(_read_buffer_size)
if len(data) == 0:
break
body_list.append(data)
http_connection.close()
return b"".join(body_list)
def set_contents_from_file(self,
file_object,
replace=True,
cb=None,
cb_count=10,
multipart_id=None,
part_num=0):
"""
file_object
a file-like object opened to the file to be archived. Must support
read().
replace
True if existing contents are to be written over.
(this argument is ignored by motoboto)
cb
callback function for reporting progress
cb_count
number of callbacks to be made during the archvie process
multipart_id
identifier of multipart upload
part_num
part number of multipart upload
archive the content of the file in nimbus.io
"""
if self._bucket is None:
raise ValueError("No bucket")
if self._name is None:
raise ValueError("No name")
wrapper = None
if cb is None:
body = file_object
else:
body = ReadReporter(file_object)
wrapper = ArchiveCallbackWrapper(body, cb, cb_count)
kwargs = {
"conjoined_identifier": multipart_id,
}
if part_num > 0:
kwargs["conjoined_part"] = part_num
for meta_key, meta_value in self._metadata:
kwargs["".join([meta_prefix, meta_key])] = meta_value
method = "POST"
uri = compute_uri("data", self._name, **kwargs)
http_connection = self._bucket.create_http_connection()
self._log.info("requesting POST {0}".format(uri))
response = http_connection.request(method, uri, body=body)
response_str = response.read()
http_connection.close()
response_dict = json.loads(response_str.decode("utf-8"))
self._version_id = response_dict["version_identifier"]
def set_contents_from_string(
self,
data,
replace=True,
cb=None,
cb_count=10,
multipart_id=None,
part_num=0,
):
"""
data
the string to archive
replace
True if existing contents are to be written over.
(this argument is ignored by motoboto)
cb
callback function for reporting progress
cb_count
number of callbacks to be made during the archvie process
multipart_id
identifier of multipart upload
part_num
part number of multipart upload
archive the content of the string into nimbus.io
sets version_id attribute after successful archive
"""
if self._bucket is None:
raise ValueError("No bucket")
if self._name is None:
raise ValueError("No name")
kwargs = {
"conjoined_identifier": multipart_id,
}
if part_num > 0:
kwargs["conjoined_part"] = part_num
for meta_key, meta_value in self._metadata.items():
kwargs["".join([meta_prefix, meta_key])] = meta_value
method = "POST"
uri = compute_uri("data", self._name, **kwargs)
http_connection = self._bucket.create_http_connection()
self._log.info("posting {0}".format(uri))
response = http_connection.request(method, uri, body=data)
response_str = response.read()
http_connection.close()
response_dict = json.loads(response_str.decode("utf-8"))
self._version_id = response_dict["version_identifier"]
def create_bucket(self, bucket_name, access_control=None):
"""
create a nimbus.io collection, similar to an s3 bucket
nimbus.io organizes the objects that you store into collections. Every
nimbus.io key is a member of a collection. For efficient access to your
data nimbus.io uses the collection name as part of the `hostname`_.
For example, to act on objects in the collection
``my-temperature-readings``, your HTTP query would be directed to
hostname ``my-temperature-readings.nimbus.io``
This approach requires some restrictions on your collection names:
* collection names must be **unique**: you cannot use a colection name
that someone else is already using.
* Internet standards mandate that collection names may contain only
* the ASCII letters **a** through **z** (case-insensitive),
* the digits **0** through **9**,
* the hyphen (**-**).
* collection names must be between 1 and 63 characters long
nimbus.io gives you a default collection name of
``dd-<your user name>``
you don't need to create your default collection
you cannot delete your default collection
To reduce the inconvenience of creating a unique collection name,
nimbus.io provides a facility for creating guaranteed unique names of
the form ``rr-<your user-name>-<collection name>``. Of course, this
must comply with the restrictons mentioned above.
.. _hostname: http://en.wikipedia.org/wiki/Hostname
"""
method = "POST"
http_connection = HTTPConnection(compute_default_hostname(),
self._identity.user_name,
self._identity.auth_key,
self._identity.auth_key_id)
uri = compute_uri("/".join(
["customers", self._identity.user_name, "collections"]),
action="create",
name=bucket_name)
body = None
headers = dict()
if access_control is not None:
body = access_control
headers["Content-Type"] = "application/json"
headers["Content-Length"] = len(body)
self._log.info("requesting {0} {1}".format(uri, headers))
try:
response = http_connection.request(method,
uri,
body=body,
headers=headers,
expected_status=CREATED)
except LumberyardHTTPError:
instance = sys.exc_info()[1]
self._log.error(str(instance))
http_connection.close()
raise
response.read()
http_connection.close()
return Bucket(self._identity, bucket_name)
