def lookup():
"""Render JSON formatted device MODBUS map.
Render a JSON listing of filtered MODBUS map records for use in external
applications or by the simple register lookup tool itself.
@return: JSON encoded MODBUS map records.
@rtype: str
"""
# Parse user query parameters
device_name = request.args.get("device_name", ALL_DEVICES_NAME)
tags = prepareFilterArg(request.args.get("tags", ALL_TAGS_NAME))
not_tags = prepareFilterArg(request.args.get("not-tags", "null"))
add_reg_names = prepareFilterArg(request.args.get("add-reg-names", "null"))
add_regs_str = prepareFilterArg(request.args.get("add-regs", "null"))
expand = request.args.get("expand-addresses", "true")
dataset_cols = prepareFilterArg(request.args.get("fields", "null"))
dataset_cols = map(
lambda x: "access" if x == "rw" else x,
dataset_cols
)
# If the desired attributes were not provided, use defaults.
if not dataset_cols:
dataset_cols = serialize.DEVICE_MODBUS_MAP_COLS
# Check if a device was specified and, if it wasn"t, default to all devices.
if device_name in INVALID_FILTER_ARGUMENTS:
device_name = ALL_DEVICES_NAME
# If not specified, do not expand LMMM fields.
if expand in INVALID_FILTER_ARGUMENTS:
expand = "false"
# Choose between either the MODBUS maps with raw LJMMM entries or the maps
# with LJMMM fields interpreted and expanded.
if expand == "true" or add_regs_str:
regs_to_use = reg_data_expanded
else:
regs_to_use = reg_data_compressed
# Filter out which entries to use based on device.
if device_name != ALL_DEVICES_NAME:
regs_to_use = [x for x in regs_to_use if match_device(x, device_name)]
# If the selected device / modbus map is not available, default to not
# found.
if len(regs_to_use) == 0:
flask.abort(404)
# Pre filter
unfiltered_registers = []
if add_reg_names:
for entry in regs_to_use:
for reg_num in add_reg_names:
if unicode(reg_num) in unicode(entry["name"]):
unfiltered_registers.append(entry)
if add_regs_str:
add_regs = map(lambda x: int(x), add_regs_str)
regs_to_use = filter(lambda x: x["address"] in add_regs, regs_to_use)
# Filter by tag
if tags and unicode(ALL_TAGS_NAME) not in tags:
tags_set = set(tags)
regs_to_use = filter(
lambda x: set(x["tags"]).issuperset(tags_set),
regs_to_use
)
# Filter by not-tag
if not_tags: # and unicode(NO_TAGS_NAME) not in not_tags:
entries_to_remove = []
for entry in regs_to_use:
for map_tag in entry["tags"]:
for not_tag in not_tags:
if map_tag.find(unicode(not_tag)) != -1:
entries_to_remove.append(entry)
for entry in entries_to_remove:
regs_to_use.remove(entry)
# Add the pre-filter contents
for unfiltered_reg in unfiltered_registers:
duplicate = False
for reg in regs_to_use:
if unicode(unfiltered_reg["name"]) == unicode(reg["name"]):
duplicate = True
if not duplicate:
regs_to_use.append(unfiltered_reg)
# Serialize the results and return.
modbus_map_serialized = serialize.serialize_device_modbus_map(regs_to_use,
dataset_cols)
response = flask.make_response(json.dumps(modbus_map_serialized))
response.headers["X-XSS-Protection"] = "0"
response.headers["Access-Control-Allow-Origin"] = ALLOWED_REDISPLAY_DOMAIN
return response
def lookup():
"""Render JSON formatted device MODBUS map.
Render a JSON listing of filtered MODBUS map records for use in external
applications or by the simple register lookup tool itself.
@return: JSON encoded MODBUS map records.
@rtype: str
"""
# Parse user query parameters
device_name = request.args.get("device_name", ALL_DEVICES_NAME)
tags = prepareFilterArg(request.args.get("tags", ALL_TAGS_NAME))
not_tags = prepareFilterArg(request.args.get("not-tags", "null"))
add_reg_names = prepareFilterArg(request.args.get("add-reg-names", "null"))
add_regs_str = prepareFilterArg(request.args.get("add-regs", "null"))
expand = request.args.get("expand-addresses", "true")
dataset_cols = prepareFilterArg(request.args.get("fields", "null"))
dataset_cols = map(lambda x: "access" if x == "rw" else x, dataset_cols)
# If the desired attributes were not provided, use defaults.
if not dataset_cols:
dataset_cols = serialize.DEVICE_MODBUS_MAP_COLS
# Check if a device was specified and, if it wasn"t, default to all devices.
if device_name in INVALID_FILTER_ARGUMENTS:
device_name = ALL_DEVICES_NAME
# If not specified, do not expand LMMM fields.
if expand in INVALID_FILTER_ARGUMENTS:
expand = "false"
# Choose between either the MODBUS maps with raw LJMMM entries or the maps
# with LJMMM fields interpreted and expanded.
if expand == "true" or add_regs_str:
regs_to_use = reg_data_expanded
else:
regs_to_use = reg_data_compressed
# Filter out which entries to use based on device.
if device_name != ALL_DEVICES_NAME:
regs_to_use = [x for x in regs_to_use if match_device(x, device_name)]
# If the selected device / modbus map is not available, default to not
# found.
if len(regs_to_use) == 0:
flask.abort(404)
# Pre filter
unfiltered_registers = []
if add_reg_names:
for entry in regs_to_use:
for reg_num in add_reg_names:
if unicode(reg_num) in unicode(entry["name"]):
unfiltered_registers.append(entry)
if add_regs_str:
add_regs = map(lambda x: int(x), add_regs_str)
regs_to_use = filter(lambda x: x["address"] in add_regs, regs_to_use)
# Filter by tag
if tags and unicode(ALL_TAGS_NAME) not in tags:
tags_set = set(tags)
regs_to_use = filter(lambda x: set(x["tags"]).issuperset(tags_set), regs_to_use)
# Filter by not-tag
if not_tags: # and unicode(NO_TAGS_NAME) not in not_tags:
entries_to_remove = []
for entry in regs_to_use:
for map_tag in entry["tags"]:
for not_tag in not_tags:
if map_tag.find(unicode(not_tag)) != -1:
entries_to_remove.append(entry)
for entry in entries_to_remove:
regs_to_use.remove(entry)
# Add the pre-filter contents
for unfiltered_reg in unfiltered_registers:
duplicate = False
for reg in regs_to_use:
if unicode(unfiltered_reg["name"]) == unicode(reg["name"]):
duplicate = True
if not duplicate:
regs_to_use.append(unfiltered_reg)
# Serailize the results and return.
modbus_map_serialized = serialize.serialize_device_modbus_map(regs_to_use, dataset_cols)
response = flask.make_response(json.dumps(modbus_map_serialized))
response.headers["X-XSS-Protection"] = "0"
response.headers["Access-Control-Allow-Origin"] = ALLOWED_REDISPLAY_DOMAIN
return response
def test_serialize_device_modbus_map(self):
"""Test serializing a modbus map for a single device."""
test_modbus_map = [{
"name": "test_1",
"address": 1,
"type": "UINT16",
"numregs": 1,
"fwmin": 0,
"readwrite": {
"read": True,
"write": False
},
"tags": ["tag1", "tag2"],
"description": "test1"
}, {
"name": "test_2",
"address": 2,
"type": "UINT16",
"numregs": 1,
"fwmin": 0,
"readwrite": {
"read": False,
"write": True
},
"tags": ["tag3", "tag4"],
"description": "test2",
"altnames": ["alternate_name"],
"usesRAM": True,
}]
expected = [[
"name",
"address",
"type",
"access",
"tags",
"description",
"default",
"streamable",
"isBuffer",
"devices",
"constants",
"altnames",
"usesRAM",
],
[
"test_1",
1,
"UINT16",
"R",
"tag1, tag2",
"test1",
"",
None,
None,
None,
None,
[],
None,
],
[
"test_2 (also known as: alternate_name)",
2,
"UINT16",
"W",
"tag3, tag4",
"test2",
"",
None,
None,
None,
None,
['alternate_name'],
True,
]]
serialized = serialize.serialize_device_modbus_map(test_modbus_map)
self.assertListEqual(serialized, expected)
