Changeset: 86b955aa08b7 for MonetDB
URL: http://dev.monetdb.org/hg/MonetDB?cmd=changeset;node=86b955aa08b7
Modified Files:
clients/iotapi/src/Streams/datatypes.py
clients/iotapi/src/Streams/streampolling.py
clients/iotapi/src/Streams/streams.py
clients/iotclient/documentation/iot_server_arguments.rst
clients/iotclient/documentation/restful_resources.rst
clients/iotclient/documentation/streams_data_types.rst
clients/iotclient/requirements.txt
clients/iotclient/src/Flask/restresources.py
clients/iotclient/src/Streams/streams.py
Branch: iot
Log Message:
First version of web api working. Updated some documentation. Fixed small
errors.
diffs (230 lines):
diff --git a/clients/iotapi/src/Streams/datatypes.py
b/clients/iotapi/src/Streams/datatypes.py
--- a/clients/iotapi/src/Streams/datatypes.py
+++ b/clients/iotapi/src/Streams/datatypes.py
@@ -119,12 +119,17 @@ class UUIDType(StreamDataType):
iterator = iter(array)
for _ in xrange(limit):
- next_uuid = ''.join(map(lambda x: "%02x" % x, [next(iterator) for
_ in xrange(16)]))
- next_uuid = ''.join([next_uuid[:8], '-', next_uuid[8:12], '-',
next_uuid[12:16], '-', next_uuid[16:20],
- '-', next_uuid[20:]])
- if next_uuid == NIL_UUID:
- next_uuid = None
- results.append(next_uuid)
+ next_uuid = []
+ for i in xrange(20):
+ if i in (4, 7, 10, 13):
+ next_uuid.append("-")
+ else:
+ next_uuid.append("%02x" % next(iterator))
+
+ built_uuid = ''.join(next_uuid)
+ if built_uuid == NIL_UUID:
+ built_uuid = None
+ results.append(built_uuid)
return results
@@ -178,7 +183,7 @@ class HugeIntegerType(StreamDataType):
results = []
iterator = iter(array) # has to iterate two values at once, so use
iterator
for value in iterator:
- next_huge = value + (next(iterator) << 64)
+ next_huge = next(iterator) + (value << 64)
if next_huge == self._nullable_constant:
results.append(None)
else:
@@ -229,7 +234,7 @@ class DecimalType(StreamDataType):
results = []
iterator = iter(array) # has to iterate two values at once, so
use iterator
for value in iterator:
- next_huge_decimal = value + (next(iterator) << 64)
+ next_huge_decimal = next(iterator) + (value << 64)
if next_huge_decimal == self._nullable_constant:
results.append(None)
else:
@@ -302,8 +307,8 @@ class TimestampType(StreamDataType): #
if value == INT32_MIN and second_value == 0:
results.append(None)
else: # dates in python start on year 1, so we must subtract one
year
- read_date = date.fromordinal(value) - relativedelta(years=1)
- div1, milliseconds = divmod(second_value, 1000)
+ read_date = date.fromordinal(second_value) -
relativedelta(years=1)
+ div1, milliseconds = divmod(value, 1000)
div2, second = divmod(div1, 60)
hour, minute = divmod(div2, 60)
results.append(datetime.combine(read_date, time(hour=hour,
minute=minute, second=second,
diff --git a/clients/iotapi/src/Streams/streampolling.py
b/clients/iotapi/src/Streams/streampolling.py
--- a/clients/iotapi/src/Streams/streampolling.py
+++ b/clients/iotapi/src/Streams/streampolling.py
@@ -40,9 +40,9 @@ def stream_polling():
if elem[3] in entry['types']:
reflection_class = globals()[entry['class']] # import
everything from datatypes!!!
new_column = reflection_class(**{'name': elem[2],
'type': elem[3], 'typewidth': elem[4]})
- columns[elem[2]] = new_column
- new_streams[key] = IOTStream(elem[0], elem[1],
**columns)
- break
+ columns[elem[2]] = new_column # add new column to the
dictionary
+ break
+ new_streams[key] = IOTStream(schema_name=elem[0],
stream_name=elem[1], columns=columns)
else:
retained_streams.append(key)
diff --git a/clients/iotapi/src/Streams/streams.py
b/clients/iotapi/src/Streams/streams.py
--- a/clients/iotapi/src/Streams/streams.py
+++ b/clients/iotapi/src/Streams/streams.py
@@ -5,7 +5,7 @@ from datatypes import LITTLE_ENDIAN_ALIG
from Settings.filesystem import get_baskets_base_location
from Utilities.readwritelock import RWLock
from WebSockets.websockets import notify_stream_inserts_to_clients
-from watchdog.events import FileSystemEventHandler
+from watchdog.events import FileSystemEventHandler, DirCreatedEvent,
DirDeletedEvent
from watchdog.observers import Observer
BASKETS_COUNT_FILE = 'count'
@@ -27,13 +27,13 @@ class StreamBasketsHandler(FileSystemEve
self._stream = stream
def on_created(self, event): # whenever a basket directory is created,
notify to subscribed clients
- if isinstance(event, 'DirCreatedEvent'):
+ if isinstance(event, DirCreatedEvent):
basket_string = os.path.basename(os.path.normpath(event.src_path))
count = self._stream.append_basket(basket_string)
notify_stream_inserts_to_clients(self._stream.get_schema_name(),
self._stream.get_stream_name(), count)
def on_deleted(self, event):
- if isinstance(event, 'DirDeletedEvent'):
+ if isinstance(event, DirDeletedEvent):
basket_string = os.path.basename(os.path.normpath(event.src_path))
self._stream.delete_basket(basket_string)
@@ -46,11 +46,10 @@ class IOTStream(object):
self._stream_name = stream_name # name of the stream
self._columns = columns # dictionary of name -> data_types
self._base_path = os.path.join(get_baskets_base_location(),
schema_name, stream_name)
+ self._lock = RWLock()
self._baskets = {} # dictionary of basket_number -> total_tuples
for name in os.listdir(self._base_path):
self.append_basket(name)
- self._lock = RWLock()
-
self._observer = Observer()
self._observer.schedule(StreamBasketsHandler(stream=self),
self._base_path, recursive=False)
self._observer.start()
@@ -63,8 +62,8 @@ class IOTStream(object):
def append_basket(self, path):
if represents_int(path):
- with open(os.path.join(self._base_path, path)) as f:
- count = struct.unpack(LITTLE_ENDIAN_ALIGNMENT + '1i',
f.read(4))[0]
+ with open(os.path.join(self._base_path, path, BASKETS_COUNT_FILE))
as f:
+ count = struct.unpack(LITTLE_ENDIAN_ALIGNMENT + 'i',
f.read(4))[0]
self._lock.acquire_write()
self._baskets[int(path)] = count
self._lock.release()
@@ -124,7 +123,7 @@ class IOTStream(object):
for key, column in self._columns.iteritems():
next_file_name = os.path.join(next_path, key)
-
results[key].append(column.read_next_tuples(next_file_name, offset,
next_read_size))
+ results[key] += column.read_next_tuples(next_file_name,
offset, next_read_size)
read_tuples += next_read_size
offset = 0
diff --git a/clients/iotclient/documentation/iot_server_arguments.rst
b/clients/iotclient/documentation/iot_server_arguments.rst
--- a/clients/iotclient/documentation/iot_server_arguments.rst
+++ b/clients/iotclient/documentation/iot_server_arguments.rst
@@ -32,10 +32,6 @@ Set the filesystem directory where the b
Location of logfile. On the logfile is reported when streams are created or
removed, when tuples are inserted and when the baskets are flushed. By default
in UNIX systems is :code:`/var/log/iot/iot.log`, while on Windows is the
:code:`iot.log` on the directory where the :code:`main.py` script was called.
-**-c - -config=**
-
-Location of the JSON file where the information of existing streams on the
server will be stored. By default is the :code:`config.json` file on filesystem
directory.
-
Host Identifier
---------------
diff --git a/clients/iotclient/documentation/restful_resources.rst
b/clients/iotclient/documentation/restful_resources.rst
--- a/clients/iotclient/documentation/restful_resources.rst
+++ b/clients/iotclient/documentation/restful_resources.rst
@@ -53,7 +53,7 @@ Returns a JSON file with details about a
**POST**
-Creates a stream using a pre-defined JSON schema. The JSON must include the
stream's schema, the stream's name, the flushing method which can be either
time or tuple based and the stream's columns. For tuple based flushing, the
number of tuples to flush must be provided using the :code:`number` field. In
time based flushing, the :code:`interval` field tells the time units between
flushes and the :code:`unit` field must be "s", "m" or "h" for seconds, minutes
or hours respectively. For columns `see data types for details
<streams_data_types.html#data_types>`__.
+Creates a stream using a pre-defined JSON schema. The JSON must include the
stream's schema, the stream's name, the stream's columns and the flushing
method. The flushing can be either time based, tuple based or automatic
(:code:`auto`). For tuple based flushing, the number of tuples to flush must be
provided using the :code:`number` field. In time based flushing, the
:code:`interval` field tells the time units between flushes and the
:code:`unit` field must be "s", "m" or "h" for seconds, minutes or hours
respectively. In automatic flushing, the baskets are flushed whenver a new
batch is inserted. For columns `see data types for details
<streams_data_types.html#data_types>`__.
Bellow is the JSON used to create the stream in streams_:
diff --git a/clients/iotclient/documentation/streams_data_types.rst
b/clients/iotclient/documentation/streams_data_types.rst
--- a/clients/iotclient/documentation/streams_data_types.rst
+++ b/clients/iotclient/documentation/streams_data_types.rst
@@ -43,7 +43,7 @@ An *Uniform Resource Locator* as a speci
Inet
----
-An *IPv4* address. The insertion as a JSON string is validated against the
regular expression :code:`^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$` with further
semantic validation.
+An *IPv4* address. The insertion as a JSON string is validated against the
regular expression
:code:`^(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}(?:\/[0-2]\d|\/3[0-2])?$`.
InetSix
-------
diff --git a/clients/iotclient/requirements.txt
b/clients/iotclient/requirements.txt
--- a/clients/iotclient/requirements.txt
+++ b/clients/iotclient/requirements.txt
@@ -3,7 +3,7 @@ jsonschema==2.5.1
pymonetdb==0.1.1
python-dateutil==2.5.3
pytz==2016.4
-rfc3987==1.3.5
+rfc3987==1.3.6
Sphinx==1.4.1
sphinx-rtd-theme==0.1.9
strict-rfc3339==0.7
diff --git a/clients/iotclient/src/Flask/restresources.py
b/clients/iotclient/src/Flask/restresources.py
--- a/clients/iotclient/src/Flask/restresources.py
+++ b/clients/iotclient/src/Flask/restresources.py
@@ -84,8 +84,6 @@ class StreamsHandling(Resource):
add_log(50, ex)
return ex, 400
else:
- add_log(20, ''.join['The stream ', schema_to_validate['schema'],
'.', schema_to_validate['stream'],
- ' was created'])
return 'The stream was created with success!', 201
def delete(self):
diff --git a/clients/iotclient/src/Streams/streams.py
b/clients/iotclient/src/Streams/streams.py
--- a/clients/iotclient/src/Streams/streams.py
+++ b/clients/iotclient/src/Streams/streams.py
@@ -84,9 +84,17 @@ class BaseIOTStream(object):
if Use_Host_Identifier:
create_file_if_not_exists(os.path.join(self._current_base_path,
HOST_IDENTIFIER_COLUMN_NAME))
+ # WARNING DELETE this code afterwards is for debugging purposes for now
+ basket_counter_file_pointer =
open(os.path.join(self._current_base_path, BASKETS_COUNT_FILE), "w+b")
+ basket_counter_file_pointer.write(struct.pack(LITTLE_ENDIAN_ALIGNMENT
+ "i",0))
+ basket_counter_file_pointer.flush()
+ basket_counter_file_pointer.close()
+ # END WARNING
+
if created: # when the stream is reloaded from the config file, the
create SQL statement is not sent
sql_array = [column.create_stream_sql() for column in
self._columns.values()]
mapi_create_stream(self._schema_name, self._stream_name, ',
'.join(sql_array + Extra_columns_SQL))
+ add_log(20, ''.join(['The stream ', self._schema_name, '.',
self._stream_name, ' was created']))
def get_schema_name(self):
return self._schema_name
@@ -136,6 +144,13 @@ class BaseIOTStream(object):
self._current_base_path = os.path.join(self._base_path,
str(self._baskets_counter))
os.makedirs(self._current_base_path)
+ # WARNING DELETE this code afterwards is for debugging purposes
for now
+ basket_counter_file_pointer =
open(os.path.join(self._current_base_path, BASKETS_COUNT_FILE), "w+b")
+
basket_counter_file_pointer.write(struct.pack(LITTLE_ENDIAN_ALIGNMENT + "i", 0))
+ basket_counter_file_pointer.flush()
+ basket_counter_file_pointer.close()
+ # END WARNING
+
for key in self._columns.keys():
create_file_if_not_exists(os.path.join(self._current_base_path, key))
create_file_if_not_exists(os.path.join(self._current_base_path,
IMPLICIT_TIMESTAMP_COLUMN_NAME))
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