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How to use new_handle method in autotest

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phidget.py

Source:phidget.py

1"""2The following is intended as the south-plugin of Dianomic's windbine demo of FogLAMP. The code uses the following Phidget based sensors: 3    - Temperature & Humidity: HUM1000_0 (https://www.phidgets.com/?tier=3&catid=14&pcid=12&prodid=644)4    - Spatial: MOT1101_0 (https://www.phidgets.com/?tier=3&catid=10&pcid=8&prodid=975)5    - Rotary: 3531_0 (https://www.phidgets.com/?tier=3&catid=103&pcid=83&prodid=404)6    - Current: VCP1100_0 (https://www.phidgets.com/?tier=3&catid=16&pcid=14&prodid=983)7"""8# -*- coding: utf-8 -*-9# FOGLAMP_BEGIN10# See: http://foglamp.readthedocs.io/11# FOGLAMP_END12""" Module for Phidget poll mode plugin """13import copy14import datetime15import logging16import math17import time 18import uuid 19from foglamp.common import logger20from foglamp.plugins.common import utils21from foglamp.services.south import exceptions22from Phidget22.Devices.Accelerometer import *23from Phidget22.Devices.CurrentInput import * 24from Phidget22.Devices.Encoder import *25from Phidget22.Devices.Gyroscope import *26from Phidget22.Devices.HumiditySensor import *27from Phidget22.Devices.Magnetometer import *28from Phidget22.Devices.TemperatureSensor import *29from Phidget22.PhidgetException import *30from Phidget22.Phidget import *31__author__ = "Ori Shadmon" 32__copyright__ = "Copyright (c) 2019 Dianomic Systems"33__license__ = "Apache 2.0"34__version__ = "${VERSION}"35_DEFAULT_CONFIG = {36    'plugin': {37        'description': 'Phidget Poll Plugin',38        'type': 'string',39        'default': 'phidget',40        'readonly': 'true'41    },42    'hubSN': {43        'description': 'VINT Hub Serial Number',44        'type': 'string',45        'default': '538854',46        'order': '1',47        'displayName': 'VINT Hub SN'48    },49    'assetPrefix': {50        'description': 'Prefix of asset name',51        'type': 'string',52        'default': 'phidget/',53        'order': '2',54        'displayName': 'Asset Name Prefix'55    },56    'tempHumAssetName': {57        'description': 'Humidity/Temperature sensor asset name',58        'type': 'string',59        'default': 'weather',60        'order': '3',61        'displayName': 'Humidity/Temperature Asset Name'62    },63    'tempHumPort': {64        'description': 'VINT Hub port of temperature/humidity sensor',65        'type': 'string',66        'default': '0',67        'order': '4',68        'displayName': 'Humidity/Temperature Port'69    },70    'tempHumPoll': {71        'description': 'Obtain Humidity/Temperature every nth time the plugin is pulled', 72        'type': 'integer', 73        'default': '1',74        'order': '5', 75        'displayName': 'Humidity/Temperature Poll', 76    }, 77    'tempHumEnable': {78        'description': 'Enable Humidity/Temperature',79        'type': 'boolean', 80        'default': 'true', 81        'order': '6', 82        'displayName': 'Enable Humidity/Temperature'83    },84    'currentAssetName': {85        'description': 'Current sensor asset name',86        'type': 'string',87        'default': 'current',88        'order': '7',89        'displayName': 'Current Asset Name'90    },91    'currentPort': {92        'description': 'VINT Hub port of current sensor',93        'type': 'string',94        'default': '3',95        'order': '8',96        'displayName': 'Current Port'97    },98    'currentPoll': {99        'description': 'Obtain current every nth time the plugin is pulled', 100        'type': 'integer', 101        'default': '1', 102        'order': '9', 103        'displayName': 'Current Poll'104    },105    'currentEnable': {106        'description': 'Enable/Disable Current sensor', 107        'type': 'boolean',108        'default': 'true', 109        'order': '10', 110        'displayName': 'Enable Current'111    },112    'encoderAssetName': {113        'description': 'Encoder sensor asset name',114        'type': 'string',115        'default': 'encoder',116        'order': '11',117        'displayName': 'Encoder Asset Name'118    },119    'encoderPort': {120        'description': 'VINT Hub port of encoder sensor',121        'type': 'string',122        'default': '1',123        'order': '12',124        'displayName': 'Encoder Port'125    },126    'encoderPoll': {127        'description': 'Obtain encoder every nth time the plugin is pulled',128        'type': 'integer',129        'default': '1',130        'order': '13',131        'displayName': 'Encoder Poll'132    },133    'encoderEnable': {134        'description': 'Enable Encoder Sensor',135        'type': 'boolean',136        'default': 'true',137        'order': '14',138        'displayName': 'Enable Encoder'139    },140   'spatialPort': {141        'description': 'VINT Hub port of spatial sensors', 142        'type': 'string', 143        'default': '2', 144        'order': '15', 145        'displayName': 'Spatial Port'146    },147    'accelerometerAssetName': {148        'description': 'accelerometer sensor asset name',149        'type': 'string',150        'default': 'accelerometer',151        'order': '16',152        'displayName': 'accelerometer Asset Name'153    },154    'accelerometerPoll': {155        'description': 'Obtain accelerometer every nth time the plugin is pulled',156        'type': 'integer',157        'default': '1',158        'order': '17',159        'displayName': 'Acceleration Poll'160    },161    'accelerometerEnable': {162        'description': 'Enable Acceleration Sensor',163        'type': 'boolean',164        'default': 'true',165        'order': '18',166        'displayName': 'Acceleration Encoder'167    },168    'gyroscopeAssetName': {169        'description': 'gyroscope sensor asset name',170        'type': 'string',171        'default': 'gyroscope',172        'order': '19',173        'displayName': 'gyroscope Asset Name'174    },175    'gyroscopePoll': {176        'description': 'Obtain gyroscope every nth time the plugin is pulled',177        'type': 'integer',178        'default': '1',179        'order': '20',180        'displayName': 'Gyroscope Poll'181    },182    'gyroscopeEnable': {183        'description': 'Enable Gyroscope Sensor',184        'type': 'boolean',185        'default': 'true',186        'order': '21',187        'displayName': 'Enable Gyroscope'188    },189    'magnetometerAssetName': {190        'description': 'magnetometer sensor asset name',191        'type': 'string',192        'default': 'magnetometer',193        'order': '22',194        'displayName': 'magnetometer Asset Name'195    },196    'magnetometerPoll': {197        'description': 'Obtain magnetometer every nth time the plugin is pulled',198        'type': 'integer',199        'default': '1',200        'order': '23',201        'displayName': 'Magnetometer Poll'202    },203    'magnetometerEnable': {204        'description': 'Enable Magnetometer Sensor',205        'type': 'boolean',206        'default': 'true',207        'order': '24',208        'displayName': 'Enable Magnetometer'209    }210}211_LOGGER = logger.setup(__name__, level=logging.INFO)212def plugin_info():213    """ Returns information about the plugin.214    Args:215    Returns:216        dict: plugin information217    Raises:218    """219    return {220        'name': 'Phidget Poll Plugin',221        'version': '2.0.0',222        'mode': 'poll',223        'type': 'south',224        'interface': '1.0',225        'config': _DEFAULT_CONFIG226    }227def plugin_init(config):228    """ Initialise the plugin.229    Args:230        config: JSON configuration document for the South plugin configuration category231    Returns:232        data: JSON object to be used in future calls to the plugin233    Raises:234    """235    try: 236        data = copy.deepcopy(config)237        if data['tempHumEnable']['value'] == 'true':238            data['humidity'] = HumiditySensor()239            data['humidity'].setDeviceSerialNumber(int(data['hubSN']['value']))240            data['humidity'].setHubPort(int(data['tempHumPort']['value']))241            data['humidity'].setIsHubPortDevice(False)242            data['humidity'].setChannel(0)243            data['humidity'].openWaitForAttachment(5000)244            try:245                data['humidity'].getHumidity()246            except Exception as e:247                pass248            data['temperature'] = TemperatureSensor()  249            data['temperature'].setDeviceSerialNumber(int(data['hubSN']['value']))250            data['temperature'].setHubPort(int(data['tempHumPort']['value']))251            data['temperature'].setIsHubPortDevice(False)252            data['temperature'].setChannel(0)253            data['temperature'].openWaitForAttachment(5000)254            try:255                data['temperature'].getTemperature()256            except Exception as e:257                pass258        if data['currentEnable']['value'] == 'true': 259            data['current'] = CurrentInput() 260            data['current'].setDeviceSerialNumber(int(data['hubSN']['value']))261            data['current'].setHubPort(int(data['currentPort']['value']))262            data['current'].setIsHubPortDevice(False)263            data['current'].setChannel(0)264            data['current'].openWaitForAttachment(5000)265            try:266                data['current'].getCurrent()267            except Exception as e:268                pass269        if data['encoderEnable']['value'] == 'true': 270            data['encoder'] = Encoder()271            data['encoder'].setDeviceSerialNumber(int(data['hubSN']['value']))272            data['encoder'].setHubPort(int(data['encoderPort']['value']))273            data['encoder'].setIsHubPortDevice(False)274            data['encoder'].setChannel(0)275            data['encoder'].openWaitForAttachment(5000)276            data['encoder'].setDataInterval(20)277            i = 0278            while i < 120:279                try:280                    data['encoder'].getPosition()281                except Exception as e:282                    time.sleep(1)283                    i+=1284                else:285                    break286    287        if data['accelerometerEnable']['value'] == 'true': 288            data['accelerometer'] = Accelerometer()289            data['accelerometer'].setDeviceSerialNumber(int(data['hubSN']['value']))290            data['accelerometer'].setHubPort(int(data['spatialPort']['value']))291            data['accelerometer'].setIsHubPortDevice(False)292            data['accelerometer'].setChannel(0)293            data['accelerometer'].openWaitForAttachment(5000)294            data['accelerometer'].setDataInterval(20)295            i = 0296            while i < 120:297                try:298                    data['accelerometer'].getAcceleration()299                except Exception as e:300                    time.sleep(1)301                    i+=1302                else:303                    break304        if data['gyroscopeEnable']['value'] == 'true': 305            data['gyroscope'] = Gyroscope()306            data['gyroscope'].setDeviceSerialNumber(int(data['hubSN']['value']))307            data['gyroscope'].setHubPort(int(data['spatialPort']['value']))308            data['gyroscope'].setIsHubPortDevice(False)309            data['gyroscope'].setChannel(0)310            data['gyroscope'].openWaitForAttachment(5000)311            data['gyroscope'].setDataInterval(20)312            i = 0313            while i < 120:314                try:315                    data['gyroscope'].getAngularRate()316                except Exception as e:317                    time.sleep(1)318                    i+=1319                else:320                    break321        if data['magnetometerEnable']['value'] == 'true': 322            data['magnetometer'] = Magnetometer()323            data['magnetometer'].setDeviceSerialNumber(int(data['hubSN']['value']))324            data['magnetometer'].setHubPort(int(data['spatialPort']['value']))325            data['magnetometer'].setIsHubPortDevice(False)326            data['magnetometer'].setChannel(0)327            data['magnetometer'].openWaitForAttachment(5000)328            data['magnetometer'].setDataInterval(20)329            i = 0 330            while i < 120: 331                try: 332                    data['magnetometer'].getMagneticField() 333                except Exception as e: 334                    time.sleep(1)335                    i+=1336                else: 337                    break 338    except Exception as ex:339        _LOGGER.exception("Phidget exception: {}".format(str(ex)))340        raise ex341    # counter to know when to run process 342    data['tempHumCount'] = 0 343    data['currentCount'] = 0 344    data['encoderCount'] = 0 345    data['accelerometerCount'] = 0 346    data['gyroscopeCount'] = 0 347    data['magnetometerCount'] = 0 348    # counter of last encoder value 349    data['encoderPreviousValue'] = 0 350    data['encoderPreviousTime'] = 0   351    return data352def plugin_poll(handle):353    """ Extracts data from the sensor and returns it in a JSON document as a Python dict.354    Available for poll mode only.355    Args:356        handle: handle returned by the plugin initialisation call357    Returns:358        returns a sensor reading in a JSON document, as a Python dict, if it is available359        None - If no reading is available360    Raises:361        TimeoutError362    """363    # air quality is votlage reading between 0 and 5.1364    # we scale is to a value between 0 and 1023365    try:366        time_stamp = utils.local_timestamp()367        data = list()368        if (handle['tempHumEnable']['value'] == 'true' and handle['tempHumCount'] == 0): 369            data.append({370                'asset': '{}{}'.format(handle['assetPrefix']['value'], handle['tempHumAssetName']['value']),371                'timestamp': time_stamp,372                'key': str(uuid.uuid4()),373                'readings': {374                    "temperature": handle['temperature'].getTemperature(),375                    "humidity": handle['humidity'].getHumidity()376                }    377            })378        if (handle['currentEnable']['value'] == 'true' and handle['currentCount'] == 0): 379            data.append({380                'asset': '{}{}'.format(handle['assetPrefix']['value'], handle['currentAssetName']['value']),381                'timestamp': time_stamp,382                'key': str(uuid.uuid4()),383                'readings': {384                    "current": handle['current'].getCurrent()385                }386            })387        if (handle['encoderEnable']['value'] == 'true' and handle['encoderCount'] == 0):388            value = handle['encoder'].getPosition()389            if handle['encoderPreviousValue'] > 0: # ommit first one390               # convert to datetime type 391               if ":" == time_stamp[-3:-2]: 392                   timestamp_new = datetime.datetime.strptime(time_stamp[:-3]+time_stamp[-2:], '%Y-%m-%d %H:%M:%S.%f%z') 393               394               if ":" == handle['encoderPreviousTime'][-3:-2]: 395                   timestamp_old = datetime.datetime.strptime(handle['encoderPreviousTime'][:-3]+handle['encoderPreviousTime'][-2:], '%Y-%m-%d %H:%M:%S.%f%z')396               397               # calculate elapse time in milliseconds 398               elapse_time = timestamp_new - timestamp_old 399               elapse_time = elapse_time.total_seconds() 400               data.append({401                    'asset': '{}{}'.format(handle['assetPrefix']['value'], handle['encoderAssetName']['value']),402                    'timestamp': time_stamp,403                    'key': str(uuid.uuid4()),404                    'readings': {405                        # (current_total_iterations - previous_total_iterations)/1200) / (elapsed time in milliseconds) 406                        "rotation-since-last-call": (value - handle['encoderPreviousValue'])/1200,407                        "rotation-per-second":  (value - handle['encoderPreviousValue'])/elapse_time408                    }409                })410            handle['encoderPreviousValue'] = value 411            handle['encoderPreviousTime'] = time_stamp412        if (handle['accelerometerEnable']['value'] == 'true' and handle['accelerometerCount'] == 0):413            x, y, z = handle['accelerometer'].getAcceleration()414            data.append({415                'asset': '{}{}'.format(handle['assetPrefix']['value'], handle['accelerometerAssetName']['value']),416                'timestamp': time_stamp,417                'key': str(uuid.uuid4()),418                'readings': {419                    "accelerometer-x": x,420                    "accelerometer-y": y, 421                    "accelerometer-z": z422                }423            })424        if (handle['gyroscopeEnable']['value'] == 'true' and handle['gyroscopeCount'] == 0): 425            x, y, z = handle['gyroscope'].getAngularRate()426            data.append({427                'asset': '{}{}'.format(handle['assetPrefix']['value'], handle['gyroscopeAssetName']['value']),428                'timestamp': time_stamp,429                'key': str(uuid.uuid4()),430                'readings': {431                    "gyroscope-x": x,432                    "gyroscope-y": y,433                    "gyroscope-z": z434                }435            })436        if (handle['magnetometerEnable']['value'] == 'true' and handle['magnetometerCount'] == 0):437            x, y, z = handle['magnetometer'].getMagneticField()438            data.append({439                'asset': '{}{}'.format(handle['assetPrefix']['value'], handle['magnetometerAssetName']['value']),440                'timestamp': time_stamp,441                'key': str(uuid.uuid4()),442                'readings': {443                    "magnetometer-x": x,444                    "magnetometer-y": y,445                    "magnetometer-z": z446                }  447            })448        handle['tempHumCount'] = (handle['tempHumCount'] + 1) % int(handle['tempHumPoll']['value'])449        handle['currentCount'] = (handle['currentCount'] + 1) % int(handle['currentPoll']['value']) 450        handle['encoderCount'] = (handle['encoderCount'] + 1) % int(handle['encoderPoll']['value']) 451        handle['accelerometerCount'] = (handle['accelerometerCount'] + 1) % int(handle['accelerometerPoll']['value'])452        handle['gyroscopeCount'] = (handle['gyroscopeCount'] + 1) % int(handle['gyroscopePoll']['value'])453        handle['magnetometerCount'] = (handle['magnetometerCount'] + 1) % int(handle['magnetometerPoll']['value'])454    except (Exception, RuntimeError) as ex:455        _LOGGER.exception("Phidget exception: {}".format(str(ex)))456        raise exceptions.DataRetrievalError(ex)457    else:458        return data459def plugin_reconfigure(handle, new_config):460    """ Reconfigures the plugin461    Args:462        handle: handle returned by the plugin initialisation call463        new_config: JSON object representing the new configuration category for the category464    Returns:465        new_handle: new handle to be used in the future calls466    """467    _LOGGER.info("Old config for Phidget plugin {} \n new config {}".format(handle, new_config))468    # Shutdown sensors 469    try: 470        handle['humidity'].close() 471        handle['temperature'].close()472        handle['current'].close() 473        handle['encoder'].close() 474        handle['accelerometer'].close()  475        handle['gyroscope'].close() 476        handle['magnetometer'].close() 477    except Exception as ex:478        _LOGGER.exception("Phidget exception: {}".format(str(ex)))479        raise ex480    time.sleep(5) 481    new_handle = copy.deepcopy(new_config)482    try: 483        # check if temp/humidity sensor is enabled. If so restart it 484        if new_handle['tempHumEnable']['value'] == 'true': 485            new_handle['humidity'] = HumiditySensor()486            new_handle['humidity'].setDeviceSerialNumber(int(new_handle['hubSN']['value']))487            new_handle['humidity'].setHubPort(int(new_handle['tempHumPort']['value']))488            new_handle['humidity'].setIsHubPortDevice(False)489            new_handle['humidity'].setChannel(0)490            new_handle['humidity'].openWaitForAttachment(5000)491            try:492                new_handle['humidity'].getHumidity()493            except Exception as e:494                pass495            new_handle['temperature'] = TemperatureSensor()496            new_handle['temperature'].setDeviceSerialNumber(int(new_handle['hubSN']['value']))497            new_handle['temperature'].setHubPort(int(new_handle['tempHumPort']['value']))498            new_handle['temperature'].setIsHubPortDevice(False)499            new_handle['temperature'].setChannel(0)500            new_handle['temperature'].openWaitForAttachment(5000)501            try:502                new_handle['temperature'].getTemperature()503            except Exception as e:504                pass505        # check if current sensor is enabled, if so restart it 506        if new_handle['currentEnable']['value'] == 'true':507            new_handle['current'] = CurrentInput()508            new_handle['current'].setDeviceSerialNumber(int(new_handle['hubSN']['value']))509            new_handle['current'].setHubPort(int(new_handle['currentPort']['value']))510            new_handle['current'].setIsHubPortDevice(False)511            new_handle['current'].setChannel(0)512            new_handle['current'].openWaitForAttachment(5000)513            try:514                new_handle['current'].getCurrent()515            except Exception as e:516                pass517        # check if encoder sensor is enabled  518        if new_handle['encoderEnable']['value'] == 'true':519            new_handle['encoder'] = Encoder()520            new_handle['encoder'].setDeviceSerialNumber(int(new_handle['hubSN']['value']))521            new_handle['encoder'].setHubPort(int(new_handle['encoderPort']['value']))522            new_handle['encoder'].setIsHubPortDevice(False)523            new_handle['encoder'].setChannel(0)524            new_handle['encoder'].openWaitForAttachment(5000)525            new_handle['encoder'].setDataInterval(20)526            i = 0527            while i < 120:528                try:529                    new_handle['encoder'].getPosition()530                except Exception as e:531                    time.sleep(1)532                    i+=1533                else:534                    break535        # check if accelerometer is enabled536        if new_handle['accelerometerEnable']['value'] == 'true':537            new_handle['accelerometer'] = Accelerometer()538            new_handle['accelerometer'].setDeviceSerialNumber(int(new_handle['hubSN']['value']))539            new_handle['accelerometer'].setHubPort(int(new_handle['spatialPort']['value']))540            new_handle['accelerometer'].setIsHubPortDevice(False)541            new_handle['accelerometer'].setChannel(0)542            new_handle['accelerometer'].openWaitForAttachment(5000)543            new_handle['accelerometer'].setDataInterval(20)544            i = 0545            while i < 120:546                try:547                    new_handle['accelerometer'].getAcceleration()548                except Exception as e:549                    time.sleep(1)550                    i+=1551                else:552                    break553        # check if gyroscope is enabled 554        if new_handle['gyroscopeEnable']['value'] == 'true':555            new_handle['gyroscope'] = Gyroscope()556            new_handle['gyroscope'].setDeviceSerialNumber(int(new_handle['hubSN']['value']))557            new_handle['gyroscope'].setHubPort(int(new_handle['spatialPort']['value']))558            new_handle['gyroscope'].setIsHubPortDevice(False)559            new_handle['gyroscope'].setChannel(0)560            new_handle['gyroscope'].openWaitForAttachment(5000)561            new_handle['gyroscope'].setDataInterval(20)562            i = 0563            while i < 120:564                try:565                    new_handle['gyroscope'].getAngularRate()566                except Exception as e:567                    time.sleep(1)568                    i+=1569                else:570                    break571        # check if magnetometer enable is enabled 572        if new_handle['magnetometerEnable']['value'] == 'true':573            new_handle['magnetometer'] = Magnetometer()574            new_handle['magnetometer'].setDeviceSerialNumber(int(new_handle['hubSN']['value']))575            new_handle['magnetometer'].setHubPort(int(new_handle['spatialPort']['value']))576            new_handle['magnetometer'].setIsHubPortDevice(False)577            new_handle['magnetometer'].setChannel(0)578            new_handle['magnetometer'].openWaitForAttachment(5000)579            new_handle['magnetometer'].setDataInterval(20)580            i = 0581            while i < 120:582                try:583                    new_handle['magnetometer'].getMagneticField()584                except Exception as e:585                    time.sleep(1)586                    i+=1587                else:588                    break589        # check if hub has changed, if so init restart 590        if new_handle['hubSN']['value'] != handle['hubSN']['value']:591            new_handle['restart'] = 'yes'592        else:593            new_handle['restart'] = 'no'594    except Exception as ex:595        _LOGGER.exception("Phidget exception: {}".format(str(ex)))596        raise ex597    # counter to know when to run process598    new_handle['tempHumCount'] = 0599    new_handle['currentCount'] = 0600    new_handle['encoderCount'] = 0601    new_handle['accelerometerCount'] = 0602    new_handle['gyroscopeCount'] = 0603    new_handle['magnetometerCount'] = 0604    # counter of last encoder value605    new_handle['encoderPreviousValue'] = handle['encoderPreviousValue']606    return new_handle607def plugin_shutdown(handle):608    """ Shutdowns the plugin doing required cleanup, to be called prior to the South plugin service being shut down.609    Args:610        handle: handle returned by the plugin initialisation call611    Returns:612        plugin shutdown613    """614    try:615        handle['humidity'].close()616        handle['temperature'].close()617        handle['current'].close()618        handle['encoder'].close()619        handle['accelerometer'].close()620        handle['gyroscope'].close()621        handle['magnetometer'].close()622    except Exception as ex:623        _LOGGER.exception("Phidget exception: {}".format(str(ex)))624        raise ex...

wind_turbine.py

Source:wind_turbine.py

1# -*- coding: utf-8 -*-2# FOGLAMP_BEGIN3# See: http://foglamp.readthedocs.io/4# FOGLAMP_END5""" Module for Phidget poll mode plugin6    The following is intended as the south service plugin of Dianomic wind turbine demo of FogLAMP.7    Phidget based sensors:8        - Temperature & Humidity: HUM1000_0 (https://www.phidgets.com/?tier=3&catid=14&pcid=12&prodid=644)9        - Spatial: MOT1101_0 (https://www.phidgets.com/?tier=3&catid=10&pcid=8&prodid=975)10        - Rotary: 3531_0 (https://www.phidgets.com/?tier=3&catid=103&pcid=83&prodid=404)11        - Current: VCP1100_0 (https://www.phidgets.com/?tier=3&catid=16&pcid=14&prodid=983)12"""13import copy14import datetime15import logging16import math17import time 18from foglamp.common import logger19from foglamp.plugins.common import utils20from foglamp.services.south import exceptions21from Phidget22.Devices.Accelerometer import *22from Phidget22.Devices.CurrentInput import * 23from Phidget22.Devices.Encoder import *24from Phidget22.Devices.Gyroscope import *25from Phidget22.Devices.HumiditySensor import *26from Phidget22.Devices.Magnetometer import *27from Phidget22.Devices.TemperatureSensor import *28from Phidget22.PhidgetException import *29from Phidget22.Phidget import *30__author__ = "Ori Shadmon" 31__copyright__ = "Copyright (c) 2019 Dianomic Systems Inc."32__license__ = "Apache 2.0"33__version__ = "${VERSION}"34_DEFAULT_CONFIG = {35    'plugin': {36        'description': 'Wind Turbine Poll Plugin',37        'type': 'string',38        'default': 'wind_turbine',39        'readonly': 'true'40    },41    'hubSN': {42        'description': 'VINT Hub Serial Number',43        'type': 'string',44        'default': '538854',45        'order': '1',46        'displayName': 'VINT Hub SN'47    },48    'assetPrefix': {49        'description': 'Prefix of asset name',50        'type': 'string',51        'default': 'wind_turbine/',52        'order': '2',53        'displayName': 'Asset Name Prefix'54    },55    'tempHumAssetName': {56        'description': 'Humidity/Temperature sensor asset name',57        'type': 'string',58        'default': 'weather',59        'order': '3',60        'displayName': 'Humidity/Temperature Asset Name'61    },62    'tempHumPort': {63        'description': 'VINT Hub port of temperature/humidity sensor',64        'type': 'string',65        'default': '0',66        'order': '4',67        'displayName': 'Humidity/Temperature Port'68    },69    'tempHumPoll': {70        'description': 'Obtain Humidity/Temperature every nth time the plugin is pulled', 71        'type': 'integer', 72        'default': '1',73        'order': '5', 74        'displayName': 'Humidity/Temperature Poll', 75    }, 76    'tempHumEnable': {77        'description': 'Enable Humidity/Temperature',78        'type': 'boolean', 79        'default': 'true', 80        'order': '6', 81        'displayName': 'Enable Humidity/Temperature'82    },83    'currentAssetName': {84        'description': 'Current sensor asset name',85        'type': 'string',86        'default': 'current',87        'order': '7',88        'displayName': 'Current Asset Name'89    },90    'currentPort': {91        'description': 'VINT Hub port of current sensor',92        'type': 'string',93        'default': '3',94        'order': '8',95        'displayName': 'Current Port'96    },97    'currentPoll': {98        'description': 'Obtain current every nth time the plugin is pulled', 99        'type': 'integer', 100        'default': '1', 101        'order': '9', 102        'displayName': 'Current Poll'103    },104    'currentEnable': {105        'description': 'Enable/Disable Current sensor', 106        'type': 'boolean',107        'default': 'true', 108        'order': '10', 109        'displayName': 'Enable Current'110    },111    'encoderAssetName': {112        'description': 'Encoder sensor asset name',113        'type': 'string',114        'default': 'encoder',115        'order': '11',116        'displayName': 'Encoder Asset Name'117    },118    'encoderPort': {119        'description': 'VINT Hub port of encoder sensor',120        'type': 'string',121        'default': '1',122        'order': '12',123        'displayName': 'Encoder Port'124    },125    'encoderPoll': {126        'description': 'Obtain encoder every nth time the plugin is pulled',127        'type': 'integer',128        'default': '1',129        'order': '13',130        'displayName': 'Encoder Poll'131    },132    'encoderEnable': {133        'description': 'Enable Encoder Sensor',134        'type': 'boolean',135        'default': 'true',136        'order': '14',137        'displayName': 'Enable Encoder'138    },139    'spatialPort': {140        'description': 'VINT Hub port of spatial sensors', 141        'type': 'string', 142        'default': '2', 143        'order': '15', 144        'displayName': 'Spatial Port'145    },146    'accelerometerAssetName': {147        'description': 'accelerometer sensor asset name',148        'type': 'string',149        'default': 'accelerometer',150        'order': '16',151        'displayName': 'accelerometer Asset Name'152    },153    'accelerometerPoll': {154        'description': 'Obtain accelerometer every nth time the plugin is pulled',155        'type': 'integer',156        'default': '1',157        'order': '17',158        'displayName': 'Acceleration Poll'159    },160    'accelerometerEnable': {161        'description': 'Enable Acceleration Sensor',162        'type': 'boolean',163        'default': 'true',164        'order': '18',165        'displayName': 'Acceleration Encoder'166    },167    'gyroscopeAssetName': {168        'description': 'gyroscope sensor asset name',169        'type': 'string',170        'default': 'gyroscope',171        'order': '19',172        'displayName': 'gyroscope Asset Name'173    },174    'gyroscopePoll': {175        'description': 'Obtain gyroscope every nth time the plugin is pulled',176        'type': 'integer',177        'default': '1',178        'order': '20',179        'displayName': 'Gyroscope Poll'180    },181    'gyroscopeEnable': {182        'description': 'Enable Gyroscope Sensor',183        'type': 'boolean',184        'default': 'true',185        'order': '21',186        'displayName': 'Enable Gyroscope'187    },188    'magnetometerAssetName': {189        'description': 'magnetometer sensor asset name',190        'type': 'string',191        'default': 'magnetometer',192        'order': '22',193        'displayName': 'magnetometer Asset Name'194    },195    'magnetometerPoll': {196        'description': 'Obtain magnetometer every nth time the plugin is pulled',197        'type': 'integer',198        'default': '1',199        'order': '23',200        'displayName': 'Magnetometer Poll'201    },202    'magnetometerEnable': {203        'description': 'Enable Magnetometer Sensor',204        'type': 'boolean',205        'default': 'true',206        'order': '24',207        'displayName': 'Enable Magnetometer'208    }209}210_LOGGER = logger.setup(__name__, level=logging.INFO)211def plugin_info():212    """ Returns information about the plugin.213    Args:214    Returns:215        dict: plugin information216    Raises:217    """218    return {219        'name': 'wind_turbine Poll Plugin',220        'version': '1.7.0',221        'mode': 'poll',222        'type': 'south',223        'interface': '1.0',224        'config': _DEFAULT_CONFIG225    }226def plugin_init(config):227    """ Initialise the plugin.228    Args:229        config: JSON configuration document for the South plugin configuration category230    Returns:231        data: JSON object to be used in future calls to the plugin232    Raises:233    """234    try: 235        data = copy.deepcopy(config)236        if data['tempHumEnable']['value'] == 'true':237            data['humidity'] = HumiditySensor()238            data['humidity'].setDeviceSerialNumber(int(data['hubSN']['value']))239            data['humidity'].setHubPort(int(data['tempHumPort']['value']))240            data['humidity'].setIsHubPortDevice(False)241            data['humidity'].setChannel(0)242            data['humidity'].openWaitForAttachment(5000)243            try:244                data['humidity'].getHumidity()245            except Exception:246                pass247            data['temperature'] = TemperatureSensor()  248            data['temperature'].setDeviceSerialNumber(int(data['hubSN']['value']))249            data['temperature'].setHubPort(int(data['tempHumPort']['value']))250            data['temperature'].setIsHubPortDevice(False)251            data['temperature'].setChannel(0)252            data['temperature'].openWaitForAttachment(5000)253            try:254                data['temperature'].getTemperature()255            except Exception:256                pass257        if data['currentEnable']['value'] == 'true': 258            data['current'] = CurrentInput() 259            data['current'].setDeviceSerialNumber(int(data['hubSN']['value']))260            data['current'].setHubPort(int(data['currentPort']['value']))261            data['current'].setIsHubPortDevice(False)262            data['current'].setChannel(0)263            data['current'].openWaitForAttachment(5000)264            try:265                data['current'].getCurrent()266            except Exception:267                pass268        if data['encoderEnable']['value'] == 'true': 269            data['encoder'] = Encoder()270            data['encoder'].setDeviceSerialNumber(int(data['hubSN']['value']))271            data['encoder'].setHubPort(int(data['encoderPort']['value']))272            data['encoder'].setIsHubPortDevice(False)273            data['encoder'].setChannel(0)274            data['encoder'].openWaitForAttachment(5000)275            data['encoder'].setDataInterval(20)276            i = 0277            while i < 120:278                try:279                    data['encoder'].getPosition()280                except Exception:281                    time.sleep(1)282                    i += 1283                else:284                    break285    286        if data['accelerometerEnable']['value'] == 'true': 287            data['accelerometer'] = Accelerometer()288            data['accelerometer'].setDeviceSerialNumber(int(data['hubSN']['value']))289            data['accelerometer'].setHubPort(int(data['spatialPort']['value']))290            data['accelerometer'].setIsHubPortDevice(False)291            data['accelerometer'].setChannel(0)292            data['accelerometer'].openWaitForAttachment(5000)293            data['accelerometer'].setDataInterval(20)294            i = 0295            while i < 120:296                try:297                    data['accelerometer'].getAcceleration()298                except Exception:299                    time.sleep(1)300                    i += 1301                else:302                    break303        if data['gyroscopeEnable']['value'] == 'true': 304            data['gyroscope'] = Gyroscope()305            data['gyroscope'].setDeviceSerialNumber(int(data['hubSN']['value']))306            data['gyroscope'].setHubPort(int(data['spatialPort']['value']))307            data['gyroscope'].setIsHubPortDevice(False)308            data['gyroscope'].setChannel(0)309            data['gyroscope'].openWaitForAttachment(5000)310            data['gyroscope'].setDataInterval(20)311            i = 0312            while i < 120:313                try:314                    data['gyroscope'].getAngularRate()315                except Exception:316                    time.sleep(1)317                    i += 1318                else:319                    break320        if data['magnetometerEnable']['value'] == 'true': 321            data['magnetometer'] = Magnetometer()322            data['magnetometer'].setDeviceSerialNumber(int(data['hubSN']['value']))323            data['magnetometer'].setHubPort(int(data['spatialPort']['value']))324            data['magnetometer'].setIsHubPortDevice(False)325            data['magnetometer'].setChannel(0)326            data['magnetometer'].openWaitForAttachment(5000)327            data['magnetometer'].setDataInterval(20)328            i = 0 329            while i < 120: 330                try: 331                    data['magnetometer'].getMagneticField() 332                except Exception:333                    time.sleep(1)334                    i += 1335                else: 336                    break 337    except Exception as ex:338        _LOGGER.exception("wind_turbine exception: {}".format(str(ex)))339        raise ex340    # counter to know when to run process 341    data['tempHumCount'] = 0 342    data['currentCount'] = 0 343    data['encoderCount'] = 0 344    data['accelerometerCount'] = 0 345    data['gyroscopeCount'] = 0 346    data['magnetometerCount'] = 0 347    # counter of last encoder value 348    data['encoderPreviousValue'] = 0349    data['encoderPreviousTime'] = 0  350    return data351def plugin_poll(handle):352    """ Extracts data from the sensor and returns it in a JSON document as a Python dict.353    Available for poll mode only.354    Args:355        handle: handle returned by the plugin initialisation call356    Returns:357        returns a sensor reading in a JSON document, as a Python dict, if it is available358        None - If no reading is available359    Raises:360        TimeoutError361    """362    # air quality is voltage reading between 0 and 5.1363    # we scale is to a value between 0 and 1023364    try:365        time_stamp = utils.local_timestamp()366        data = list()367        if handle['tempHumEnable']['value'] == 'true' and handle['tempHumCount'] == 0:368            data.append({369                'asset': '{}{}'.format(handle['assetPrefix']['value'], handle['tempHumAssetName']['value']),370                'timestamp': time_stamp,371                'readings': {372                    "temperature": handle['temperature'].getTemperature(),373                    "humidity": handle['humidity'].getHumidity()374                }    375            })376        if handle['currentEnable']['value'] == 'true' and handle['currentCount'] == 0:377            data.append({378                'asset': '{}{}'.format(handle['assetPrefix']['value'], handle['currentAssetName']['value']),379                'timestamp': time_stamp,380                'readings': {381                    "current": handle['current'].getCurrent()382                }383            })384        if handle['encoderEnable']['value'] == 'true' and handle['encoderCount'] == 0:385            value = handle['encoder'].getPosition()386            # convert time_stamp to be usable387            if ":" == time_stamp[-3:-2]:388                timestamp_new = datetime.datetime.strptime(time_stamp[:-3]+time_stamp[-2:], '%Y-%m-%d %H:%M:%S.%f%z')389            else: 390                timestamp_new = datetime.datetime.strptime(time_stamp, '%Y-%m-%d %H:%M:%S.%f%z')391            if handle['encoderPreviousValue'] > 0:  # omit first one392                # calculate elapse time in milliseconds393                elapse_time = timestamp_new - handle['encoderPreviousTime']394                elapse_time = elapse_time.total_seconds()395                data.append({396                    'asset': '{}{}'.format(handle['assetPrefix']['value'], handle['encoderAssetName']['value']),397                    'timestamp': time_stamp,398                    'readings': {399                        # (current_total_iterations - previous_total_iterations) / (elapsed time in seconds) 400                        "rotation-per-second":  ((value - handle['encoderPreviousValue'])/1200)/elapse_time 401                    }402                })403            # update old values 404            handle['encoderPreviousValue'] = value 405            handle['encoderPreviousTime'] = timestamp_new 406        if handle['accelerometerEnable']['value'] == 'true' and handle['accelerometerCount'] == 0:407            x, y, z = handle['accelerometer'].getAcceleration()408            data.append({409                'asset': '{}{}'.format(handle['assetPrefix']['value'], handle['accelerometerAssetName']['value']),410                'timestamp': time_stamp,411                'readings': {412                    "accelerometer-x": x,413                    "accelerometer-y": y, 414                    "accelerometer-z": z415                }416            })417        if handle['gyroscopeEnable']['value'] == 'true' and handle['gyroscopeCount'] == 0:418            x, y, z = handle['gyroscope'].getAngularRate()419            data.append({420                'asset': '{}{}'.format(handle['assetPrefix']['value'], handle['gyroscopeAssetName']['value']),421                'timestamp': time_stamp,422                'readings': {423                    "gyroscope-x": x,424                    "gyroscope-y": y,425                    "gyroscope-z": z426                }427            })428        if handle['magnetometerEnable']['value'] == 'true' and handle['magnetometerCount'] == 0:429            x, y, z = handle['magnetometer'].getMagneticField()430            data.append({431                'asset': '{}{}'.format(handle['assetPrefix']['value'], handle['magnetometerAssetName']['value']),432                'timestamp': time_stamp,433                'readings': {434                    "magnetometer-x": x,435                    "magnetometer-y": y,436                    "magnetometer-z": z437                }  438            })439        handle['tempHumCount'] = (handle['tempHumCount'] + 1) % int(handle['tempHumPoll']['value'])440        handle['currentCount'] = (handle['currentCount'] + 1) % int(handle['currentPoll']['value']) 441        handle['encoderCount'] = (handle['encoderCount'] + 1) % int(handle['encoderPoll']['value']) 442        handle['accelerometerCount'] = (handle['accelerometerCount'] + 1) % int(handle['accelerometerPoll']['value'])443        handle['gyroscopeCount'] = (handle['gyroscopeCount'] + 1) % int(handle['gyroscopePoll']['value'])444        handle['magnetometerCount'] = (handle['magnetometerCount'] + 1) % int(handle['magnetometerPoll']['value'])445    except (Exception, RuntimeError) as ex:446        _LOGGER.exception("wind_turbine exception: {}".format(str(ex)))447        raise exceptions.DataRetrievalError(ex)448    else:449        return data450def plugin_reconfigure(handle, new_config):451    """ Reconfigures the plugin452    Args:453        handle: handle returned by the plugin initialisation call454        new_config: JSON object representing the new configuration category for the category455    Returns:456        new_handle: new handle to be used in the future calls457    """458    _LOGGER.info("Old config for wind_turbine plugin {} \n new config {}".format(handle, new_config))459    # Shutdown sensors 460    try: 461        handle['humidity'].close() 462        handle['temperature'].close()463        handle['current'].close() 464        handle['encoder'].close() 465        handle['accelerometer'].close()  466        handle['gyroscope'].close() 467        handle['magnetometer'].close() 468    except Exception as ex:469        _LOGGER.exception("wind_turbine exception: {}".format(str(ex)))470        raise ex471    time.sleep(5) 472    new_handle = copy.deepcopy(new_config)473    try: 474        # check if temp/humidity sensor is enabled. If so restart it 475        if new_handle['tempHumEnable']['value'] == 'true': 476            new_handle['humidity'] = HumiditySensor()477            new_handle['humidity'].setDeviceSerialNumber(int(new_handle['hubSN']['value']))478            new_handle['humidity'].setHubPort(int(new_handle['tempHumPort']['value']))479            new_handle['humidity'].setIsHubPortDevice(False)480            new_handle['humidity'].setChannel(0)481            new_handle['humidity'].openWaitForAttachment(5000)482            try:483                new_handle['humidity'].getHumidity()484            except Exception:485                pass486            new_handle['temperature'] = TemperatureSensor()487            new_handle['temperature'].setDeviceSerialNumber(int(new_handle['hubSN']['value']))488            new_handle['temperature'].setHubPort(int(new_handle['tempHumPort']['value']))489            new_handle['temperature'].setIsHubPortDevice(False)490            new_handle['temperature'].setChannel(0)491            new_handle['temperature'].openWaitForAttachment(5000)492            try:493                new_handle['temperature'].getTemperature()494            except Exception:495                pass496        # check if current sensor is enabled, if so restart it 497        if new_handle['currentEnable']['value'] == 'true':498            new_handle['current'] = CurrentInput()499            new_handle['current'].setDeviceSerialNumber(int(new_handle['hubSN']['value']))500            new_handle['current'].setHubPort(int(new_handle['currentPort']['value']))501            new_handle['current'].setIsHubPortDevice(False)502            new_handle['current'].setChannel(0)503            new_handle['current'].openWaitForAttachment(5000)504            try:505                new_handle['current'].getCurrent()506            except Exception:507                pass508        # check if encoder sensor is enabled  509        if new_handle['encoderEnable']['value'] == 'true':510            new_handle['encoder'] = Encoder()511            new_handle['encoder'].setDeviceSerialNumber(int(new_handle['hubSN']['value']))512            new_handle['encoder'].setHubPort(int(new_handle['encoderPort']['value']))513            new_handle['encoder'].setIsHubPortDevice(False)514            new_handle['encoder'].setChannel(0)515            new_handle['encoder'].openWaitForAttachment(5000)516            new_handle['encoder'].setDataInterval(20)517            i = 0518            while i < 120:519                try:520                    new_handle['encoder'].getPosition()521                except Exception:522                    time.sleep(1)523                    i += 1524                else:525                    break526        # check if accelerometer is enabled527        if new_handle['accelerometerEnable']['value'] == 'true':528            new_handle['accelerometer'] = Accelerometer()529            new_handle['accelerometer'].setDeviceSerialNumber(int(new_handle['hubSN']['value']))530            new_handle['accelerometer'].setHubPort(int(new_handle['spatialPort']['value']))531            new_handle['accelerometer'].setIsHubPortDevice(False)532            new_handle['accelerometer'].setChannel(0)533            new_handle['accelerometer'].openWaitForAttachment(5000)534            new_handle['accelerometer'].setDataInterval(20)535            i = 0536            while i < 120:537                try:538                    new_handle['accelerometer'].getAcceleration()539                except Exception:540                    time.sleep(1)541                    i += 1542                else:543                    break544        # check if gyroscope is enabled 545        if new_handle['gyroscopeEnable']['value'] == 'true':546            new_handle['gyroscope'] = Gyroscope()547            new_handle['gyroscope'].setDeviceSerialNumber(int(new_handle['hubSN']['value']))548            new_handle['gyroscope'].setHubPort(int(new_handle['spatialPort']['value']))549            new_handle['gyroscope'].setIsHubPortDevice(False)550            new_handle['gyroscope'].setChannel(0)551            new_handle['gyroscope'].openWaitForAttachment(5000)552            new_handle['gyroscope'].setDataInterval(20)553            i = 0554            while i < 120:555                try:556                    new_handle['gyroscope'].getAngularRate()557                except Exception:558                    time.sleep(1)559                    i += 1560                else:561                    break562        # check if magnetometer enable is enabled 563        if new_handle['magnetometerEnable']['value'] == 'true':564            new_handle['magnetometer'] = Magnetometer()565            new_handle['magnetometer'].setDeviceSerialNumber(int(new_handle['hubSN']['value']))566            new_handle['magnetometer'].setHubPort(int(new_handle['spatialPort']['value']))567            new_handle['magnetometer'].setIsHubPortDevice(False)568            new_handle['magnetometer'].setChannel(0)569            new_handle['magnetometer'].openWaitForAttachment(5000)570            new_handle['magnetometer'].setDataInterval(20)571            i = 0572            while i < 120:573                try:574                    new_handle['magnetometer'].getMagneticField()575                except Exception:576                    time.sleep(1)577                    i += 1578                else:579                    break580        # check if hub has changed, if so init restart 581        if new_handle['hubSN']['value'] != handle['hubSN']['value']:582            new_handle['restart'] = 'yes'583        else:584            new_handle['restart'] = 'no'585    except Exception as ex:586        _LOGGER.exception("wind_turbine exception: {}".format(str(ex)))587        raise ex588    # counter to know when to run process589    new_handle['tempHumCount'] = 0590    new_handle['currentCount'] = 0591    new_handle['encoderCount'] = 0592    new_handle['accelerometerCount'] = 0593    new_handle['gyroscopeCount'] = 0594    new_handle['magnetometerCount'] = 0595    # counter of last encoder value596    new_handle['encoderPreviousValue'] = handle['encoderPreviousValue']597    return new_handle598def plugin_shutdown(handle):599    """ Shutdowns the plugin doing required cleanup, to be called prior to the South plugin service being shut down.600    Args:601        handle: handle returned by the plugin initialisation call602    Returns:603        plugin shutdown604    """605    try:606        handle['humidity'].close()607        handle['temperature'].close()608        handle['current'].close()609        handle['encoder'].close()610        handle['accelerometer'].close()611        handle['gyroscope'].close()612        handle['magnetometer'].close()613    except Exception as ex:614        _LOGGER.exception("wind_turbine exception: {}".format(str(ex)))615        raise ex...

manager.py

Source:manager.py

...76    }77    ObjectHandleTable = {78    }79    @staticmethod80    def new_handle():81        handle_id = ObjectManager.HANDLE_ID82        ObjectManager.HANDLE_ID += 483        return handle_id84    @staticmethod85    def new_id():86        _id = ObjectManager.OBJECT_ID87        ObjectManager.OBJECT_ID += 488        return _id89    @staticmethod90    def new_pid():91        pid = ObjectManager.PROCESS_ID92        ObjectManager.PROCESS_ID += 493        return pid94    @staticmethod95    def new_tid():96        tid = ObjectManager.THREAD_ID97        ObjectManager.THREAD_ID += 498        return tid99    @staticmethod100    def check_object_by_name(name):101        if name in ObjectManager.ObjectNameTable:102            handle = ObjectManager.new_handle()103            oid = ObjectManager.ObjectNameTable[name]104            ObjectManager.ObjectHandleTable[handle] = oid105            ObjectManager.ObjectTable[oid].inc_refcount()106            return handle107        return -1108    @staticmethod109    def get_object_handle(objstring, *args):110        if objstring == 'File':111            path = args[0]112            new_handle = ObjectManager.check_object_by_name(path)113            if new_handle != -1:114                return new_handle115            new_handle = ObjectManager.create_new_object(objstring, *args)116            if new_handle != INVALID_HANDLE_VALUE:117                ObjectManager.ObjectNameTable[path] = ObjectManager.ObjectHandleTable[new_handle]118        elif objstring == 'MMFile':119            name = args[5]120            new_handle = ObjectManager.check_object_by_name(name)121            if new_handle != -1:122                return new_handle123            124            new_handle = ObjectManager.create_new_object(objstring, *args)125        else:126            new_handle = ObjectManager.create_new_object(objstring, args)127        return new_handle128    @staticmethod129    def create_new_object(objstring, *args):    130        obj = ObjectManager.EmuObjectNames[objstring]131        new_obj = obj(*args)132        new_obj.set_oid(ObjectManager.new_id())133        if objstring == 'Process':134            uc_eng = args[0]135            new_obj.set_pid(ObjectManager.new_pid())136            new_obj.set_gdt(EmuGDT(uc_eng)) # actually, this is done by core ntoskrnl137        138        elif objstring == 'Thread':139            new_obj.set_tid(ObjectManager.new_tid())140        elif objstring == 'File':141            if not new_obj.obj:142                return INVALID_HANDLE_VALUE143        handle = ObjectManager.add_object(new_obj)144        return handle145        146    @staticmethod147    def add_object(obj):148        handle = ObjectManager.new_handle()149        ObjectManager.ObjectTable[obj.oid] = obj150        ObjectManager.ObjectHandleTable[handle] = obj.oid151        obj.inc_refcount()152        return handle153    @staticmethod154    def get_obj_by_handle(handle):155        if handle in ObjectManager.ObjectHandleTable:156            oid = ObjectManager.ObjectHandleTable[handle]157            return ObjectManager.ObjectTable[oid]158        else:159            return None160    161    @staticmethod162    def close_handle(handle_id):...

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