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""" This module was created to be the main interface between the telemetry napp and all |
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other kytos napps' APIs """ |
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import datetime |
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import httpx |
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from napps.kytos.telemetry_int import settings |
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from kytos.core import log |
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from .settings import flow_manager_api, mef_eline_api |
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# pylint: disable=fixme,too-many-arguments,no-else-return |
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def kytos_api( |
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get=False, |
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put=False, |
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post=False, |
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mef_eline=False, |
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evc_id=None, |
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flow_manager=False, |
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switch=None, |
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data=None, |
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metadata=False, |
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): |
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"""Main function to handle requests to Kytos API.""" |
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# TODO: add support for batch, temporizer, retries |
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if flow_manager_api: |
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kytos_api_url = flow_manager_api |
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if mef_eline: |
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kytos_api_url = mef_eline_api |
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headers = {"Content-Type": "application/json"} |
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try: |
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if get: |
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if data: |
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kytos_api_url += data |
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return httpx.get(kytos_api_url, timeout=10).json() |
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elif put: |
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httpx.put(kytos_api_url, timeout=10, headers=headers) |
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elif post: |
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if mef_eline and metadata: |
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url = f"{kytos_api_url}/evc/{evc_id}/metadata" |
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response = httpx.post(url, headers=headers, json=data, timeout=10) |
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return response.status_code == 201 |
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if flow_manager: |
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url = f"{kytos_api_url}/{switch}" |
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response = httpx.post(url, headers=headers, json=data, timeout=10) |
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return response.status_code == 202 |
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except httpx.RequestError as http_err: |
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log.error(f"HTTP error occurred: {http_err}") |
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return False |
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def get_evcs(archived="false") -> dict: |
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"""Get EVCs.""" |
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try: |
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response = httpx.get(f"{settings.mef_eline_api}/evc/?archived={archived}") |
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response.raise_for_status() |
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return response.json() |
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except httpx.HTTPStatusError as exc: |
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log.error(f"response: {response.text} for {str(exc)}") |
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return {} |
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def get_evc(evc_id: str) -> dict: |
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"""Get EVC.""" |
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try: |
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response = httpx.get(f"{settings.mef_eline_api}/evc/{evc_id}") |
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if response.status_code == 404: |
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return {} |
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response.raise_for_status() |
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data = response.json() |
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return {data["id"]: data} |
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except httpx.HTTPStatusError as exc: |
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log.error(f"response: {response.text} for {str(exc)}") |
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return {} |
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def get_evc_flows(cookie: int, *dpid: str) -> dict: |
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"""Get EVC's flows given a range of cookies.""" |
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endpoint = ( |
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f"stored_flows?cookie_range={cookie}&cookie_range={cookie}" |
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"&state=installed&state=pending" |
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) |
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if dpid: |
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dpid_query_args = [f"&dpid={val}" for val in dpid] |
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endpoint = f"{endpoint}{''.join(dpid_query_args)}" |
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response = httpx.get(f"{settings.flow_manager_api}/{endpoint}") |
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try: |
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response.raise_for_status() |
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return response.json() |
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except httpx.HTTPStatusError as exc: |
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log.error(f"response: {response.text} for {str(exc)}") |
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return {} |
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def set_telemetry_metadata_true(evc_id, direction): |
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"""Set telemetry enabled metadata item to true""" |
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data = { |
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"telemetry": { |
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"enabled": True, |
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"direction": direction, |
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"timestamp": datetime.datetime.now().strftime("%Y-%m-%dT%H:%M:%S"), |
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} |
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} |
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return kytos_api(post=True, mef_eline=True, evc_id=evc_id, metadata=True, data=data) |
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def set_telemetry_metadata_false(evc_id): |
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"""Set telemetry enabled metadata item to false""" |
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data = { |
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"telemetry": { |
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"enabled": False, |
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"timestamp": datetime.datetime.now().strftime("%Y-%m-%dT%H:%M:%S"), |
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} |
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} |
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return kytos_api(post=True, mef_eline=True, evc_id=evc_id, metadata=True, data=data) |
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def kytos_push_flows(switch, data): |
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"""Push flows to Flow Manager""" |
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return kytos_api(post=True, flow_manager=True, switch=switch, data=data) |
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kytos-ng /
telemetry_int
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