Closes #237.

Current state of examples\ngsiv2 that have been worked on:

• Changes in every example:
  • Logger does not show the name of the module and class, but only class
  • Logger does not show milliseconds anymore and I changed the order of day, month, year. Not sure what is the best practise, this can be easily adjusted.
  • Adjusted every example to Python 3.9

Before:

After:

Examples:

• e01_ngsi_v2_context_basics.py: working ✅ (last checked: 16.05.2024)
  • Changes: fixed logger output, entity ids changed to the standard ones
• e02_ngsi_v2_context_relationships.py: working ✅ (last checked: 24.04.2024)
• e03_ngsi_v2_context_subscriptions_http.py: working ✅ (last checked: 21.05.2024)
  • Changes: reformatted subscription comment
• e04_ngsi_v2_context_subscriptions_mqtt.py: working ✅ (last checked: 21.05.2024)
  • Changes: fixed deprecated methods, reformatted mqtt notifications, removed unused imports
• e05_ngsi_v2_context_registrations.py: not completely working ⚠️ (last checked: 29.05.2024)
  • Changes: fixed deprecated methods, PEP-8 errors, and reformatted comments.
  • Notes: It seems as if the context provider weather station is not providing any data to the building that is supposed to be provided from the weather station when we query the building at the end of the example
• e06_ngsi_v2_autogenerate_context_data_models.py: not working ❌ (last checked: 30.04.2024)
  • Notes: A very short example, but half of the code is deprecated, maybe it should be completely remade?
• e07_ngsi_v2_iota_basics.py: not completely working ⚠️ (last checked: 29.05.2024)
  • Changes: fixed deprecated methods, typos, and pep-8 errors. Changed entity ids to the standard ones.
  • Notes: The code gets executed, but with one small error from logger: 2024-04-30 17:03:55,412 filip.clients.ngsi_v2.cb.ContextBrokerClient ERROR: Could not delete attribute 'on' of entity'sensor2' Reason: {"error":"NotFound","description":"The requested entity has not been found. Check type and id"}
• e08_ngsi_v2_iota_paho_mqtt.py: working ✅ (last checked: 11.06.2024)
  • Changes: fixed deprecated methods, pep 8 errors, typos. Also fixed the error with random attribute values being posted differently in comparison to the logger output. Fixed QoS message from mqtt client.
• e09_ngsi_v2_iota_filip_mqtt.py: working: ✅ (last checked: 12.06.2024)
  • Changes: fixed deprecated methods, adjusted mqtt callback function logger statements, adjusted temperature value to be in 'normal' range.
  • Note 📓 : This example is showing more just the capabilities of the library, but not on the actual use case. Some methods are just listed in the example, so it is a bit messy and not completely clear what the example wants to show. This example can be maybe structured better?
• e10_ngsi_vs_quantumleap.py: working ✅ (last checked: 07.05.2024)
  • Changes: fixed PEP-8 errors, typos. Removed milliseconds from logger for better readability. Changed print statements for better readability.
  • Notes: clear_all() method at the start is causing this message from the logger: filip.clients.ngsi_v2.quantumleap.QuantumLeapClient ERROR: Could not load entity data
Reason: { "description": "No records were found for such query.", "error": "Not Found" } This does not cause any negative impacts further in the code, but the output is not very clean.
• e11_ngsi_v2_context_specific_models.py: working ✅ (last checked: 08.05.2024)
  • Changes: None
• e12_ngsi_v2_use_case_models.py: working ✅ (last checked: 18.06.2024)
  • Changes: clear_context_broker() method was missing parameters, now they have been added.

TODO: The directories of the examples and the numeration of the examples has to be adjusted. For example, we have two examples with the number 11 in the ngsiv2 directory, and the examples in the basics directory also need adjustment. README.md then also needs to be adjusted accordingly.