build.rsudp.helpers.msg_imgpath() - Code Metrics - Inspection of "moving duplicate function to helpers" - raspishake/rsudp - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Push — master ( eaebec...66e57b )

by Ian

created 2021-10-29 17:53 UTC

build.rsudp.helpers.msg_imgpath() A

↳ Parent: build.rsudp.helpers

Complexity

Conditions

Size

Total Lines	22
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	2
CRAP Score	1

Importance

Changes

Metric	Value
eloc	2
dl	0
loc	22
ccs	2
cts	2
cp	1
rs	10
c	0
b	0
f	0
cc	1
nop	2
crap	1

import rsudp.raspberryshake as rs
from rsudp import COLOR, printM, printW
import rsudp
import os
import json


def dump_default(settings_loc, default_settings):
	'''
	Dumps a default settings file to a specified location.

	:param str settings_loc: The location to create the new settings JSON.
	:param str default_settings: The default settings to dump to file.
	'''
	print('Creating a default settings file at %s' % settings_loc)
	with open(settings_loc, 'w+') as f:
		f.write(default_settings)
		f.write('\n')


def default_settings(output_dir='%s/rsudp' % os.path.expanduser('~').replace('\\', '/'), verbose=True):
	'''
	Returns a formatted json string of default settings.

	:param str output_dir: the user's specified output location. defaults to ``~/rsudp``.
	:param bool verbose: if ``True``, displays some information as the string is created.
	:return: default settings string in formatted json
	:rtype: str
	'''
	def_settings = r"""{
"settings": {
    "port": 8888,
    "station": "Z0000",
    "output_dir": "%s",
    "debug": true},
"printdata": {
    "enabled": false},
"write": {
    "enabled": false,
    "channels": ["all"]},
"plot": {
    "enabled": true,
    "duration": 30,
    "spectrogram": true,
    "fullscreen": false,
    "kiosk": false,
    "eq_screenshots": false,
    "channels": ["HZ", "HDF"],
    "deconvolve": true,
    "units": "CHAN"},
"forward": {
    "enabled": false,
    "address": ["192.168.1.254"],
    "port": [8888],
    "channels": ["all"],
    "fwd_data": true,
    "fwd_alarms": false},
"alert": {
    "enabled": true,
    "channel": "HZ",
    "sta": 6,
    "lta": 30,
    "threshold": 1.7,
    "reset": 1.6,
    "highpass": 0,
    "lowpass": 50,
    "deconvolve": false,
    "units": "VEL"},
"alertsound": {
    "enabled": false,
    "mp3file": "doorbell"},
"custom": {
    "enabled": false,
    "codefile": "n/a",
    "win_override": false},
"tweets": {
    "enabled": false,
    "tweet_images": true,
    "api_key": "n/a",
    "api_secret": "n/a",
    "access_token": "n/a",
    "access_secret": "n/a",
    "extra_text": ""},
"telegram": {
    "enabled": false,
    "send_images": true,
    "token": "n/a",
    "chat_id": "n/a",
    "extra_text": ""},
"rsam": {
    "enabled": false,
    "quiet": true,
    "fwaddr": "192.168.1.254",
    "fwport": 8887,
    "fwformat": "LITE",
    "channel": "HZ",
    "interval": 10,
    "deconvolve": false,
    "units": "VEL"}
}

""" % (output_dir)
	if verbose:
		print('By default output_dir is set to %s' % output_dir)
	return def_settings


def read_settings(loc):
	'''
	Reads settings from a specific location.

	:param str loc: location on disk to read json settings file from
	:return: settings dictionary read from JSON, or ``None``
	:rtype: dict or NoneType
	'''
	settings_loc = os.path.abspath(os.path.expanduser(loc)).replace('\\', '/')
	settings = None
	with open(settings_loc, 'r') as f:
		try:
			data = f.read().replace('\\', '/')
			settings = json.loads(data)
		except Exception as e:
			print(COLOR['red'] + 'ERROR: Could not load settings file. Perhaps the JSON is malformed?' + COLOR['white'])
			print(COLOR['red'] + '       detail: %s' % e + COLOR['white'])
			print(COLOR['red'] + '       If you would like to overwrite and rebuild the file, you can enter the command below:' + COLOR['white'])
			print(COLOR['bold'] + '       shake_client -d %s' % loc + COLOR['white'])
			exit(2)
	return settings


def set_channels(self, cha):
	'''
	This function sets the channels available for plotting. Allowed units are as follows:

	- ``["SHZ", "EHZ", "EHN", "EHE"]`` - velocity channels
	- ``["ENZ", "ENN", "ENE"]`` - acceleration channels
	- ``["HDF"]`` - pressure transducer channel
	- ``["all"]`` - all available channels

	So for example, if you wanted to display the two vertical channels of a Shake 4D,
	(geophone and vertical accelerometer) you could specify:

	``["EHZ", "ENZ"]``

	You can also specify partial channel names.
	So for example, the following will display at least one channel from any
	Raspberry Shake instrument:

	``["HZ", "HDF"]``

	Or if you wanted to display only vertical channels from a RS4D,
	you could specify

	``["Z"]``

	which would match both ``"EHZ"`` and ``"ENZ"``.

	:param self self: self object of the class calling this function
	:param cha: the channel or list of channels to plot
	:type cha: list or str
	'''
	cha = rs.chns if ('all' in cha) else cha
	cha = list(cha) if isinstance(cha, str) else cha
	for c in rs.chns:
		n = 0
		for uch in cha:
			if (uch.upper() in c) and (c not in str(self.chans)):
				self.chans.append(c)
			n += 1
	if len(self.chans) < 1:
			self.chans = rs.chns


def fsec(ti):
	'''
	.. versionadded:: 0.4.3

	The Raspberry Shake records at hundredths-of-a-second precision.
	In order to report time at this precision, we need to do some time-fu.

	This function rounds the microsecond fraction of a
	:py:class:`obspy.core.utcdatetime.UTCDateTime`
	depending on its precision, so that it accurately reflects the Raspberry Shake's
	event measurement precision.

	This is necessary because datetime objects in Python are strange and confusing, and
	strftime doesn't support fractional returns, only the full integer microsecond field
	which is an integer right-padded with zeroes. This function uses the ``precision``
	of a datetime object.

	For example:

	.. code-block:: python

		>>> from obspy import UTCDateTime
		>>> ti = UTCDateTime(2020, 1, 1, 0, 0, 0, 599000, precision=3)
		>>> fsec(ti)
		UTCDateTime(2020, 1, 1, 0, 0, 0, 600000)

	:param ti: time object to convert microseconds for
	:type ti: obspy.core.utcdatetime.UTCDateTime
	:return: the hundredth-of-a-second rounded version of the time object passed (precision is 0.01 second)
	:rtype: obspy.core.utcdatetime.UTCDateTime
	'''
	# time in python is weird and confusing, but luckily obspy is better than Python
	# at dealing with datetimes. all we need to do is tell it what precision we want
	# and it handles the rounding for us.
	return rs.UTCDateTime(ti, precision=2)


def conn_stats(TESTING=False):
	'''
	Print some stats about the connection.

	Example:

	.. code-block:: python

		>>> conn_stats()
		2020-03-25 01:35:04 [conn_stats] Initialization stats:
		2020-03-25 01:35:04 [conn_stats]                 Port: 18069
		2020-03-25 01:35:04 [conn_stats]   Sending IP address: 192.168.0.4
		2020-03-25 01:35:04 [conn_stats]     Set station name: R24FA
		2020-03-25 01:35:04 [conn_stats]   Number of channels: 4
		2020-03-25 01:35:04 [conn_stats]   Transmission freq.: 250 ms/packet
		2020-03-25 01:35:04 [conn_stats]    Transmission rate: 4 packets/sec
		2020-03-25 01:35:04 [conn_stats]   Samples per second: 100 sps
		2020-03-25 01:35:04 [conn_stats]            Inventory: AM.R24FA (Raspberry Shake Citizen Science Station)

	:param bool TESTING: if ``True``, text is printed to the console in yellow. if not, in white.
	'''
	s = 'conn_stats'
	pf = printW if TESTING else printM
	pf('Initialization stats:', sender=s, announce=False)
	pf('                Port: %s' % rs.port, sender=s, announce=False)
	pf('  Sending IP address: %s' % rs.firstaddr, sender=s, announce=False)
	pf('    Set station name: %s' % rs.stn, sender=s, announce=False)
	pf('  Number of channels: %s' % rs.numchns, sender=s, announce=False)
	pf('  Transmission freq.: %s ms/packet' % rs.tf, sender=s, announce=False)
	pf('   Transmission rate: %s packets/sec' % rs.tr, sender=s, announce=False)
	pf('  Samples per second: %s sps' % rs.sps, sender=s, announce=False)
	if rs.inv:
		pf('           Inventory: %s' % rs.inv.get_contents()['stations'][0],
			   sender=s, announce=False)


def msg_alarm(event_time):
	'''
	This function constructs the ``ALARM`` message as a bytes object.
	Currently this is only used by :py:class:`rsudp.p_producer.Producer`
	to construct alarm queue messages.

	For example:

	.. code-block:: python

		>>> from obspy import UTCDateTime
		>>> ti = UTCDateTime(2020, 1, 1, 0, 0, 0, 599000, precision=3)
		>>> msg_alarm(ti)
		b'ALARM 2020-01-01T00:00:00.599Z'

	:param obspy.core.utcdatetime.UTCDateTime event_time: the datetime object to serialize and convert to bytes
	:rtype: bytes
	:return: the ``ALARM`` message, ready to be put on the queue
	'''
	return b'ALARM %s' % bytes(str(event_time), 'utf-8')


def msg_reset(reset_time):
	'''
	This function constructs the ``RESET`` message as a bytes object.
	Currently this is only used by :py:class:`rsudp.p_producer.Producer`
	to construct reset queue messages.

	For example:

	.. code-block:: python

		>>> from obspy import UTCDateTime
		>>> ti = UTCDateTime(2020, 1, 1, 0, 0, 0, 599000, precision=3)
		>>> msg_reset(ti)
		b'RESET 2020-01-01T00:00:00.599Z'

	:param obspy.core.utcdatetime.UTCDateTime reset_time: the datetime object to serialize and convert to bytes
	:rtype: bytes
	:return: the ``RESET`` message, ready to be put on the queue
	'''
	return b'RESET %s' % bytes(str(reset_time), 'utf-8')


def msg_imgpath(event_time, figname):
	'''
	This function constructs the ``IMGPATH`` message as a bytes object.
	Currently this is only used by :py:class:`rsudp.c_plot.Plot`
	to construct queue messages containing timestamp and saved image path.

	For example:

	.. code-block:: python

		>>> from obspy import UTCDateTime
		>>> ti = UTCDateTime(2020, 1, 1, 0, 0, 0, 599000, precision=3)
		>>> path = '/home/pi/rsudp/screenshots/test.png'
		>>> msg_imgpath(ti, path)
		b'IMGPATH 2020-01-01T00:00:00.599Z /home/pi/rsudp/screenshots/test.png'

	:param obspy.core.utcdatetime.UTCDateTime event_time: the datetime object to serialize and convert to bytes
	:param str figname: the figure path as a string
	:rtype: bytes
	:return: the ``IMGPATH`` message, ready to be put on the queue
	'''
	return b'IMGPATH %s %s' % (bytes(str(event_time), 'utf-8'), bytes(str(figname), 'utf-8'))


def msg_term():
	'''
	This function constructs the simple ``TERM`` message as a bytes object.

	.. code-block:: python

		>>> msg_term()
		b'TERM'


	:rtype: bytes
	:return: the ``TERM`` message
	'''
	return b'TERM'


def get_msg_time(msg):
	'''
	This function gets the time from ``ALARM``, ``RESET``,
	and ``IMGPATH`` messages as a UTCDateTime object.

	For example:

	.. code-block:: python

		>>> from obspy import UTCDateTime
		>>> ti = UTCDateTime(2020, 1, 1, 0, 0, 0, 599000, precision=3)
		>>> path = '/home/pi/rsudp/screenshots/test.png'
		>>> msg = msg_imgpath(ti, path)
		>>> msg
		b'IMGPATH 2020-01-01T00:00:00.599Z /home/pi/rsudp/screenshots/test.png'
		>>> get_msg_time(msg)
		UTCDateTime(2020, 1, 1, 0, 0, 0, 599000)

	:param bytes msg: the bytes-formatted queue message to decode
	:rtype: obspy.core.utcdatetime.UTCDateTime
	:return: the time embedded in the message
	'''
	return rs.UTCDateTime.strptime(msg.decode('utf-8').split(' ')[1], '%Y-%m-%dT%H:%M:%S.%fZ')


def get_msg_path(msg):
	'''
	This function gets the path from ``IMGPATH`` messages as a string.

	For example:

	.. code-block:: python

		>>> from obspy import UTCDateTime
		>>> ti = UTCDateTime(2020, 1, 1, 0, 0, 0, 599000, precision=3)
		>>> path = '/home/pi/rsudp/screenshots/test.png'
		>>> msg = msg_imgpath(ti, path)
		>>> msg
		b'IMGPATH 2020-01-01T00:00:00.599Z /home/pi/rsudp/screenshots/test.png'
		>>> get_msg_path(msg)
		'/home/pi/rsudp/screenshots/test.png'

	:param bytes msg: the bytes-formatted queue message to decode
	:rtype: str
	:return: the path embedded in the message
	'''
	return msg.decode('utf-8').split(' ')[2]


def get_scap_dir():
	'''
	This function returns the screen capture directory from the init function.
	This allows the variable to be more threadsafe.

	.. code-block:: python

		>>> get_scap_dir()
		'/home/pi/rsudp/screenshots/'

	:return: the path of the screenshot directory
	'''
	return rsudp.scap_dir


def deconv_vel_inst(self, trace, output):
	'''
	.. role:: pycode(code)
		:language: python
	
	A helper function for :py:func:`rsudp.raspberryshake.deconvolve`
	for velocity channels.

	:param self self: The self object of the sub-consumer class calling this function.
	:param obspy.core.trace.Trace trace: the trace object instance to deconvolve
	'''
	if self.deconv not in 'CHAN':
		trace.remove_response(inventory=rs.inv, pre_filt=[0.1, 0.6, 0.95*self.sps, self.sps],
								output=output, water_level=4.5, taper=False)
	else:
		trace.remove_response(inventory=rs.inv, pre_filt=[0.1, 0.6, 0.95*self.sps, self.sps],
								output='VEL', water_level=4.5, taper=False)
	if 'ACC' in self.deconv:
		trace.data = rs.np.gradient(trace.data, 1)
	elif 'GRAV' in self.deconv:
		trace.data = rs.np.gradient(trace.data, 1) / rs.g
		trace.stats.units = 'Earth gravity'
	elif 'DISP' in self.deconv:
		trace.data = rs.np.cumsum(trace.data)
		trace.taper(max_percentage=0.1, side='left', max_length=1)
		trace.detrend(type='demean')
	else:
		trace.stats.units = 'Velocity'


def deconv_acc_inst(self, trace, output):
	'''
	.. role:: pycode(code)
		:language: python
	
	A helper function for :py:func:`rsudp.raspberryshake.deconvolve`
	for acceleration channels.

	:param self self: The self object of the sub-consumer class calling this function.
	:param obspy.core.trace.Trace trace: the trace object instance to deconvolve
	'''
	if self.deconv not in 'CHAN':
		trace.remove_response(inventory=rs.inv, pre_filt=[0.1, 0.6, 0.95*self.sps, self.sps],
								output=output, water_level=4.5, taper=False)
	else:
		trace.remove_response(inventory=rs.inv, pre_filt=[0.1, 0.6, 0.95*self.sps, self.sps],
								output='ACC', water_level=4.5, taper=False)
	if 'VEL' in self.deconv:
		trace.data = rs.np.cumsum(trace.data)
		trace.detrend(type='demean')
	elif 'DISP' in self.deconv:
		trace.data = rs.np.cumsum(rs.np.cumsum(trace.data))
		trace.detrend(type='linear')
	elif 'GRAV' in self.deconv:
		trace.data = trace.data / rs.g
		trace.stats.units = 'Earth gravity'
	else:
		trace.stats.units = 'Acceleration'
	if ('ACC' not in self.deconv) and ('CHAN' not in self.deconv):
		trace.taper(max_percentage=0.1, side='left', max_length=1)


def deconv_rbm_inst(self, trace, output):
	'''
	.. role:: pycode(code)
		:language: python
	
	A helper function for :py:func:`rsudp.raspberryshake.deconvolve`
	for Raspberry Boom pressure transducer channels.

	.. note::

		The Raspberry Boom pressure transducer does not currently have a
		deconvolution function. The Raspberry Shake team is working on a
		calibration for the Boom, but until then Boom units are given in
		counts.

	:param self self: The self object of the sub-consumer class calling this function.
	:param obspy.core.trace.Trace trace: the trace object instance to deconvolve
	'''
	trace.stats.units = ' counts'


def deconvolve(self):
	'''
	.. role:: pycode(code)
		:language: python
	
	A central helper function for sub-consumers (i.e. :py:class:`rsudp.c_plot.Plot` or :py:class:`rsudp.c_alert.Alert`)
	that need to deconvolve their raw data to metric units.
	Consumers with :py:class:`obspy.core.stream.Stream` objects in :pycode:`self.stream` can use this to deconvolve data
	if this library's :pycode:`rsudp.raspberryshake.inv` variable
	contains a valid :py:class:`obspy.core.inventory.inventory.Inventory` object.

	:param self self: The self object of the sub-consumer class calling this function. Must contain :pycode:`self.stream` as a :py:class:`obspy.core.stream.Stream` object.
	'''
	acc_channels = ['ENE', 'ENN', 'ENZ']
	vel_channels = ['EHE', 'EHN', 'EHZ', 'SHZ']
	rbm_channels = ['HDF']

	self.stream = self.raw.copy()
	for trace in self.stream:
		trace.stats.units = self.units
		output = 'ACC' if self.deconv == 'GRAV' else self.deconv	# if conversion is to gravity
		if self.deconv:
			if trace.stats.channel in vel_channels:
				deconv_vel_inst(self, trace, output)	# geophone channels

			elif trace.stats.channel in acc_channels:
				deconv_acc_inst(self, trace, output)	# accelerometer channels

			elif trace.stats.channel in rbm_channels:
				deconv_rbm_inst(self, trace, output)	# this is the Boom channel

			else:
				trace.stats.units = ' counts'	# this is a new one

		else:
			trace.stats.units = ' counts'		# this is not being deconvolved


def _resolve_extra_text(extra_text, max_len, sender='helpers'):
	'''
	
	'''
	allowable_len = max_len - 177	# length of string allowable given maximum message text & region
	if ((extra_text == '') or (extra_text == None) or (extra_text == False)):
		return ''
	else:
		extra_text = str(extra_text)
		len_ex_txt = len(extra_text)

		if len_ex_txt > allowable_len:
			printW('extra_text parameter is longer than allowable (%s chars) and will be truncated. Please keep extra_text at or below %s characters.' % (len_ex_txt, allowable_len), sender=sender)
			extra_text = extra_text[:allowable_len]

		return ' %s' % (extra_text)



1	1	import rsudp.raspberryshake as rs
2	1	from rsudp import COLOR, printM, printW
3	1	import rsudp
4	1	import os
5	1	import json
6
7
8	1	def dump_default(settings_loc, default_settings):
9		'''
10		Dumps a default settings file to a specified location.
11
12		:param str settings_loc: The location to create the new settings JSON.
13		:param str default_settings: The default settings to dump to file.
14		'''
15		print('Creating a default settings file at %s' % settings_loc)
16		with open(settings_loc, 'w+') as f:
17		f.write(default_settings)
18		f.write('\n')
19
20
21	1	def default_settings(output_dir='%s/rsudp' % os.path.expanduser('~').replace('\\', '/'), verbose=True):
22		'''
23		Returns a formatted json string of default settings.
24
25		:param str output_dir: the user's specified output location. defaults to ``~/rsudp``.
26		:param bool verbose: if ``True``, displays some information as the string is created.
27		:return: default settings string in formatted json
28		:rtype: str
29		'''
30	1	def_settings = r"""{
31		"settings": {
32		"port": 8888,
33		"station": "Z0000",
34		"output_dir": "%s",
35		"debug": true},
36		"printdata": {
37		"enabled": false},
38		"write": {
39		"enabled": false,
40		"channels": ["all"]},
41		"plot": {
42		"enabled": true,
43		"duration": 30,
44		"spectrogram": true,
45		"fullscreen": false,
46		"kiosk": false,
47		"eq_screenshots": false,
48		"channels": ["HZ", "HDF"],
49		"deconvolve": true,
50		"units": "CHAN"},
51		"forward": {
52		"enabled": false,
53		"address": ["192.168.1.254"],
54		"port": [8888],
55		"channels": ["all"],
56		"fwd_data": true,
57		"fwd_alarms": false},
58		"alert": {
59		"enabled": true,
60		"channel": "HZ",
61		"sta": 6,
62		"lta": 30,
63		"threshold": 1.7,
64		"reset": 1.6,
65		"highpass": 0,
66		"lowpass": 50,
67		"deconvolve": false,
68		"units": "VEL"},
69		"alertsound": {
70		"enabled": false,
71		"mp3file": "doorbell"},
72		"custom": {
73		"enabled": false,
74		"codefile": "n/a",
75		"win_override": false},
76		"tweets": {
77		"enabled": false,
78		"tweet_images": true,
79		"api_key": "n/a",
80		"api_secret": "n/a",
81		"access_token": "n/a",
82		"access_secret": "n/a",
83		"extra_text": ""},
84		"telegram": {
85		"enabled": false,
86		"send_images": true,
87		"token": "n/a",
88		"chat_id": "n/a",
89		"extra_text": ""},
90		"rsam": {
91		"enabled": false,
92		"quiet": true,
93		"fwaddr": "192.168.1.254",
94		"fwport": 8887,
95		"fwformat": "LITE",
96		"channel": "HZ",
97		"interval": 10,
98		"deconvolve": false,
99		"units": "VEL"}
100		}
101
102		""" % (output_dir)
103	1	if verbose:
104		print('By default output_dir is set to %s' % output_dir)
105	1	return def_settings
106
107
108	1	def read_settings(loc):
109		'''
110		Reads settings from a specific location.
111
112		:param str loc: location on disk to read json settings file from
113		:return: settings dictionary read from JSON, or ``None``
114		:rtype: dict or NoneType
115		'''
116		settings_loc = os.path.abspath(os.path.expanduser(loc)).replace('\\', '/')
117		settings = None
118		with open(settings_loc, 'r') as f:
119		try:
120		data = f.read().replace('\\', '/')
121		settings = json.loads(data)
122		except Exception as e:
123		print(COLOR['red'] + 'ERROR: Could not load settings file. Perhaps the JSON is malformed?' + COLOR['white'])
124		print(COLOR['red'] + ' detail: %s' % e + COLOR['white'])
125		print(COLOR['red'] + ' If you would like to overwrite and rebuild the file, you can enter the command below:' + COLOR['white'])
126		print(COLOR['bold'] + ' shake_client -d %s' % loc + COLOR['white'])
127		exit(2)
128		return settings
129
130
131	1	def set_channels(self, cha):
132		'''
133		This function sets the channels available for plotting. Allowed units are as follows:
134
135		- ``["SHZ", "EHZ", "EHN", "EHE"]`` - velocity channels
136		- ``["ENZ", "ENN", "ENE"]`` - acceleration channels
137		- ``["HDF"]`` - pressure transducer channel
138		- ``["all"]`` - all available channels
139
140		So for example, if you wanted to display the two vertical channels of a Shake 4D,
141		(geophone and vertical accelerometer) you could specify:
142
143		``["EHZ", "ENZ"]``
144
145		You can also specify partial channel names.
146		So for example, the following will display at least one channel from any
147		Raspberry Shake instrument:
148
149		``["HZ", "HDF"]``
150
151		Or if you wanted to display only vertical channels from a RS4D,
152		you could specify
153
154		``["Z"]``
155
156		which would match both ``"EHZ"`` and ``"ENZ"``.
157
158		:param self self: self object of the class calling this function
159		:param cha: the channel or list of channels to plot
160		:type cha: list or str
161		'''
162	1	cha = rs.chns if ('all' in cha) else cha
163	1	cha = list(cha) if isinstance(cha, str) else cha
164	1	for c in rs.chns:
165	1	n = 0
166	1	for uch in cha:
167	1	if (uch.upper() in c) and (c not in str(self.chans)):
168	1	self.chans.append(c)
169	1	n += 1
170	1	if len(self.chans) < 1:
171		self.chans = rs.chns
172
173
174	1	def fsec(ti):
175		'''
176		.. versionadded:: 0.4.3
177
178		The Raspberry Shake records at hundredths-of-a-second precision.
179		In order to report time at this precision, we need to do some time-fu.
180
181		This function rounds the microsecond fraction of a
182		:py:class:`obspy.core.utcdatetime.UTCDateTime`
183		depending on its precision, so that it accurately reflects the Raspberry Shake's
184		event measurement precision.
185
186		This is necessary because datetime objects in Python are strange and confusing, and
187		strftime doesn't support fractional returns, only the full integer microsecond field
188		which is an integer right-padded with zeroes. This function uses the ``precision``
189		of a datetime object.
190
191		For example:
192
193		.. code-block:: python
194
195		>>> from obspy import UTCDateTime
196		>>> ti = UTCDateTime(2020, 1, 1, 0, 0, 0, 599000, precision=3)
197		>>> fsec(ti)
198		UTCDateTime(2020, 1, 1, 0, 0, 0, 600000)
199
200		:param ti: time object to convert microseconds for
201		:type ti: obspy.core.utcdatetime.UTCDateTime
202		:return: the hundredth-of-a-second rounded version of the time object passed (precision is 0.01 second)
203		:rtype: obspy.core.utcdatetime.UTCDateTime
204		'''
205		# time in python is weird and confusing, but luckily obspy is better than Python
206		# at dealing with datetimes. all we need to do is tell it what precision we want
207		# and it handles the rounding for us.
208	1	return rs.UTCDateTime(ti, precision=2)
209
210
211	1	def conn_stats(TESTING=False):
212		'''
213		Print some stats about the connection.
214
215		Example:
216
217		.. code-block:: python
218
219		>>> conn_stats()
220		2020-03-25 01:35:04 [conn_stats] Initialization stats:
221		2020-03-25 01:35:04 [conn_stats] Port: 18069
222		2020-03-25 01:35:04 [conn_stats] Sending IP address: 192.168.0.4
223		2020-03-25 01:35:04 [conn_stats] Set station name: R24FA
224		2020-03-25 01:35:04 [conn_stats] Number of channels: 4
225		2020-03-25 01:35:04 [conn_stats] Transmission freq.: 250 ms/packet
226		2020-03-25 01:35:04 [conn_stats] Transmission rate: 4 packets/sec
227		2020-03-25 01:35:04 [conn_stats] Samples per second: 100 sps
228		2020-03-25 01:35:04 [conn_stats] Inventory: AM.R24FA (Raspberry Shake Citizen Science Station)
229
230		:param bool TESTING: if ``True``, text is printed to the console in yellow. if not, in white.
231		'''
232	1	s = 'conn_stats'
233	1	pf = printW if TESTING else printM
234	1	pf('Initialization stats:', sender=s, announce=False)
235	1	pf(' Port: %s' % rs.port, sender=s, announce=False)
236	1	pf(' Sending IP address: %s' % rs.firstaddr, sender=s, announce=False)
237	1	pf(' Set station name: %s' % rs.stn, sender=s, announce=False)
238	1	pf(' Number of channels: %s' % rs.numchns, sender=s, announce=False)
239	1	pf(' Transmission freq.: %s ms/packet' % rs.tf, sender=s, announce=False)
240	1	pf(' Transmission rate: %s packets/sec' % rs.tr, sender=s, announce=False)
241	1	pf(' Samples per second: %s sps' % rs.sps, sender=s, announce=False)
242	1	if rs.inv:
243	1	pf(' Inventory: %s' % rs.inv.get_contents()['stations'][0],
244		sender=s, announce=False)
245
246
247	1	def msg_alarm(event_time):
248		'''
249		This function constructs the ``ALARM`` message as a bytes object.
250		Currently this is only used by :py:class:`rsudp.p_producer.Producer`
251		to construct alarm queue messages.
252
253		For example:
254
255		.. code-block:: python
256
257		>>> from obspy import UTCDateTime
258		>>> ti = UTCDateTime(2020, 1, 1, 0, 0, 0, 599000, precision=3)
259		>>> msg_alarm(ti)
260		b'ALARM 2020-01-01T00:00:00.599Z'
261
262		:param obspy.core.utcdatetime.UTCDateTime event_time: the datetime object to serialize and convert to bytes
263		:rtype: bytes
264		:return: the ``ALARM`` message, ready to be put on the queue
265		'''
266	1	return b'ALARM %s' % bytes(str(event_time), 'utf-8')
267
268
269	1	def msg_reset(reset_time):
270		'''
271		This function constructs the ``RESET`` message as a bytes object.
272		Currently this is only used by :py:class:`rsudp.p_producer.Producer`
273		to construct reset queue messages.
274
275		For example:
276
277		.. code-block:: python
278
279		>>> from obspy import UTCDateTime
280		>>> ti = UTCDateTime(2020, 1, 1, 0, 0, 0, 599000, precision=3)
281		>>> msg_reset(ti)
282		b'RESET 2020-01-01T00:00:00.599Z'
283
284		:param obspy.core.utcdatetime.UTCDateTime reset_time: the datetime object to serialize and convert to bytes
285		:rtype: bytes
286		:return: the ``RESET`` message, ready to be put on the queue
287		'''
288	1	return b'RESET %s' % bytes(str(reset_time), 'utf-8')
289
290
291	1	def msg_imgpath(event_time, figname):
292		'''
293		This function constructs the ``IMGPATH`` message as a bytes object.
294		Currently this is only used by :py:class:`rsudp.c_plot.Plot`
295		to construct queue messages containing timestamp and saved image path.
296
297		For example:
298
299		.. code-block:: python
300
301		>>> from obspy import UTCDateTime
302		>>> ti = UTCDateTime(2020, 1, 1, 0, 0, 0, 599000, precision=3)
303		>>> path = '/home/pi/rsudp/screenshots/test.png'
304		>>> msg_imgpath(ti, path)
305		b'IMGPATH 2020-01-01T00:00:00.599Z /home/pi/rsudp/screenshots/test.png'
306
307		:param obspy.core.utcdatetime.UTCDateTime event_time: the datetime object to serialize and convert to bytes
308		:param str figname: the figure path as a string
309		:rtype: bytes
310		:return: the ``IMGPATH`` message, ready to be put on the queue
311		'''
312	1	return b'IMGPATH %s %s' % (bytes(str(event_time), 'utf-8'), bytes(str(figname), 'utf-8'))
313
314
315	1	def msg_term():
316		'''
317		This function constructs the simple ``TERM`` message as a bytes object.
318
319		.. code-block:: python
320
321		>>> msg_term()
322		b'TERM'
323
324
325		:rtype: bytes
326		:return: the ``TERM`` message
327		'''
328	1	return b'TERM'
329
330
331	1	def get_msg_time(msg):
332		'''
333		This function gets the time from ``ALARM``, ``RESET``,
334		and ``IMGPATH`` messages as a UTCDateTime object.
335
336		For example:
337
338		.. code-block:: python
339
340		>>> from obspy import UTCDateTime
341		>>> ti = UTCDateTime(2020, 1, 1, 0, 0, 0, 599000, precision=3)
342		>>> path = '/home/pi/rsudp/screenshots/test.png'
343		>>> msg = msg_imgpath(ti, path)
344		>>> msg
345		b'IMGPATH 2020-01-01T00:00:00.599Z /home/pi/rsudp/screenshots/test.png'
346		>>> get_msg_time(msg)
347		UTCDateTime(2020, 1, 1, 0, 0, 0, 599000)
348
349		:param bytes msg: the bytes-formatted queue message to decode
350		:rtype: obspy.core.utcdatetime.UTCDateTime
351		:return: the time embedded in the message
352		'''
353	1	return rs.UTCDateTime.strptime(msg.decode('utf-8').split(' ')[1], '%Y-%m-%dT%H:%M:%S.%fZ')
354
355
356	1	def get_msg_path(msg):
357		'''
358		This function gets the path from ``IMGPATH`` messages as a string.
359
360		For example:
361
362		.. code-block:: python
363
364		>>> from obspy import UTCDateTime
365		>>> ti = UTCDateTime(2020, 1, 1, 0, 0, 0, 599000, precision=3)
366		>>> path = '/home/pi/rsudp/screenshots/test.png'
367		>>> msg = msg_imgpath(ti, path)
368		>>> msg
369		b'IMGPATH 2020-01-01T00:00:00.599Z /home/pi/rsudp/screenshots/test.png'
370		>>> get_msg_path(msg)
371		'/home/pi/rsudp/screenshots/test.png'
372
373		:param bytes msg: the bytes-formatted queue message to decode
374		:rtype: str
375		:return: the path embedded in the message
376		'''
377	1	return msg.decode('utf-8').split(' ')[2]
378
379
380	1	def get_scap_dir():
381		'''
382		This function returns the screen capture directory from the init function.
383		This allows the variable to be more threadsafe.
384
385		.. code-block:: python
386
387		>>> get_scap_dir()
388		'/home/pi/rsudp/screenshots/'
389
390		:return: the path of the screenshot directory
391		'''
392	1	return rsudp.scap_dir
393
394
395	1	def deconv_vel_inst(self, trace, output):
396		'''
397		.. role:: pycode(code)
398		:language: python
399
400		A helper function for :py:func:`rsudp.raspberryshake.deconvolve`
401		for velocity channels.
402
403		:param self self: The self object of the sub-consumer class calling this function.
404		:param obspy.core.trace.Trace trace: the trace object instance to deconvolve
405		'''
406	1	if self.deconv not in 'CHAN':
407		trace.remove_response(inventory=rs.inv, pre_filt=[0.1, 0.6, 0.95*self.sps, self.sps],
408		output=output, water_level=4.5, taper=False)
409		else:
410	1	trace.remove_response(inventory=rs.inv, pre_filt=[0.1, 0.6, 0.95*self.sps, self.sps],
411		output='VEL', water_level=4.5, taper=False)
412	1	if 'ACC' in self.deconv:
413		trace.data = rs.np.gradient(trace.data, 1)
414	1	elif 'GRAV' in self.deconv:
415		trace.data = rs.np.gradient(trace.data, 1) / rs.g
416		trace.stats.units = 'Earth gravity'
417	1	elif 'DISP' in self.deconv:
418		trace.data = rs.np.cumsum(trace.data)
419		trace.taper(max_percentage=0.1, side='left', max_length=1)
420		trace.detrend(type='demean')
421		else:
422	1	trace.stats.units = 'Velocity'
423
424
425	1	def deconv_acc_inst(self, trace, output):
426		'''
427		.. role:: pycode(code)
428		:language: python
429
430		A helper function for :py:func:`rsudp.raspberryshake.deconvolve`
431		for acceleration channels.
432
433		:param self self: The self object of the sub-consumer class calling this function.
434		:param obspy.core.trace.Trace trace: the trace object instance to deconvolve
435		'''
436	1	if self.deconv not in 'CHAN':
437		trace.remove_response(inventory=rs.inv, pre_filt=[0.1, 0.6, 0.95*self.sps, self.sps],
438		output=output, water_level=4.5, taper=False)
439		else:
440	1	trace.remove_response(inventory=rs.inv, pre_filt=[0.1, 0.6, 0.95*self.sps, self.sps],
441		output='ACC', water_level=4.5, taper=False)
442	1	if 'VEL' in self.deconv:
443		trace.data = rs.np.cumsum(trace.data)
444		trace.detrend(type='demean')
445	1	elif 'DISP' in self.deconv:
446		trace.data = rs.np.cumsum(rs.np.cumsum(trace.data))
447		trace.detrend(type='linear')
448	1	elif 'GRAV' in self.deconv:
449		trace.data = trace.data / rs.g
450		trace.stats.units = 'Earth gravity'
451		else:
452	1	trace.stats.units = 'Acceleration'
453	1	if ('ACC' not in self.deconv) and ('CHAN' not in self.deconv):
454		trace.taper(max_percentage=0.1, side='left', max_length=1)
455
456
457	1	def deconv_rbm_inst(self, trace, output):
458		'''
459		.. role:: pycode(code)
460		:language: python
461
462		A helper function for :py:func:`rsudp.raspberryshake.deconvolve`
463		for Raspberry Boom pressure transducer channels.
464
465		.. note::
466
467		The Raspberry Boom pressure transducer does not currently have a
468		deconvolution function. The Raspberry Shake team is working on a
469		calibration for the Boom, but until then Boom units are given in
470		counts.
471
472		:param self self: The self object of the sub-consumer class calling this function.
473		:param obspy.core.trace.Trace trace: the trace object instance to deconvolve
474		'''
475		trace.stats.units = ' counts'
476
477
478	1	def deconvolve(self):
479		'''
480		.. role:: pycode(code)
481		:language: python
482
483		A central helper function for sub-consumers (i.e. :py:class:`rsudp.c_plot.Plot` or :py:class:`rsudp.c_alert.Alert`)
484		that need to deconvolve their raw data to metric units.
485		Consumers with :py:class:`obspy.core.stream.Stream` objects in :pycode:`self.stream` can use this to deconvolve data
486		if this library's :pycode:`rsudp.raspberryshake.inv` variable
487		contains a valid :py:class:`obspy.core.inventory.inventory.Inventory` object.
488
489		:param self self: The self object of the sub-consumer class calling this function. Must contain :pycode:`self.stream` as a :py:class:`obspy.core.stream.Stream` object.
490		'''
491	1	acc_channels = ['ENE', 'ENN', 'ENZ']
492	1	vel_channels = ['EHE', 'EHN', 'EHZ', 'SHZ']
493	1	rbm_channels = ['HDF']
494
495	1	self.stream = self.raw.copy()
496	1	for trace in self.stream:
497	1	trace.stats.units = self.units
498	1	output = 'ACC' if self.deconv == 'GRAV' else self.deconv # if conversion is to gravity
499	1	if self.deconv:
500	1	if trace.stats.channel in vel_channels:
501	1	deconv_vel_inst(self, trace, output) # geophone channels
502
503	1	elif trace.stats.channel in acc_channels:
504	1	deconv_acc_inst(self, trace, output) # accelerometer channels
505
506		elif trace.stats.channel in rbm_channels:
507		deconv_rbm_inst(self, trace, output) # this is the Boom channel
508
509		else:
510		trace.stats.units = ' counts' # this is a new one
511
512		else:
513		trace.stats.units = ' counts' # this is not being deconvolved
514
515
516	1	def _resolve_extra_text(extra_text, max_len, sender='helpers'):
517		'''
518
519		'''
520	1	allowable_len = max_len - 177 # length of string allowable given maximum message text & region
521	1	if ((extra_text == '') or (extra_text == None) or (extra_text == False)):
522	1	return ''
523		else:
524		extra_text = str(extra_text)
525		len_ex_txt = len(extra_text)
526
527		if len_ex_txt > allowable_len:
528		printW('extra_text parameter is longer than allowable (%s chars) and will be truncated. Please keep extra_text at or below %s characters.' % (len_ex_txt, allowable_len), sender=sender)
529		extra_text = extra_text[:allowable_len]
530
531		return ' %s' % (extra_text)
532
533

raspishake / rsudp

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