Andrea Campanella | 50c0c4c | 2018-12-21 12:18:21 +0100 | [diff] [blame^] | 1 | #!/usr/bin/python3 |
| 2 | |
| 3 | import requests |
| 4 | import json |
| 5 | import itertools |
| 6 | |
| 7 | # |
| 8 | # Creates connectivity json |
| 9 | # |
| 10 | def tapi_input(sip_uuids): |
| 11 | create_input = { |
| 12 | "tapi-connectivity:input": { |
| 13 | "end-point" : [ |
| 14 | { |
| 15 | "local-id": sip_uuids[0], |
| 16 | "service-interface-point": { |
| 17 | "service-interface-point-uuid" : sip_uuids[0] |
| 18 | } |
| 19 | } |
| 20 | , |
| 21 | { |
| 22 | "local-id": sip_uuids[1], |
| 23 | "service-interface-point": { |
| 24 | "service-interface-point-uuid" : sip_uuids[1] |
| 25 | } |
| 26 | } |
| 27 | ] |
| 28 | } |
| 29 | } |
| 30 | return create_input |
| 31 | |
| 32 | # |
| 33 | # Obtains TAPI context through restconf |
| 34 | # |
| 35 | def get_context(url_context): |
| 36 | resp = requests.get(url_context, auth=('onos', 'rocks')) |
| 37 | if resp.status_code != 200: |
| 38 | raise Exception('GET {}'.format(resp.status_code)) |
| 39 | return resp.json() |
| 40 | |
| 41 | # |
| 42 | # Requests a connectivity service |
| 43 | # |
| 44 | def request_connection(url_connectivity, context): |
| 45 | # All Context SIPs |
| 46 | sips = context["tapi-common:context"]["service-interface-point"] |
| 47 | |
| 48 | # Sorted Photonic Media SIPs. filter is an iterable |
| 49 | esips = list(filter(is_dsr_media, sorted(sips, key=lambda sip: sip["name"][0]["value"]))) |
| 50 | endpoints = [esips[0], esips[-1]] |
| 51 | sip_uuids = [] |
| 52 | for sip in endpoints: |
| 53 | sip_uuids.append(sip["uuid"]) |
| 54 | for uuid in sip_uuids: |
| 55 | print(uuid) |
| 56 | |
| 57 | create_input_json = json.dumps(tapi_input(sip_uuids)) |
| 58 | print (create_input_json) |
| 59 | headers = {'Content-type': 'application/json'} |
| 60 | resp = requests.post(url_connectivity, data=create_input_json, headers=headers, auth=('onos', 'rocks')) |
| 61 | if resp.status_code != 200: |
| 62 | raise Exception('POST {}'.format(resp.status_code)) |
| 63 | return resp |
| 64 | |
| 65 | # |
| 66 | # Filter method used to keep only SIPs that are photonic_media |
| 67 | # |
| 68 | def is_photonic_media(sip): |
| 69 | return sip["layer-protocol-name"]=="PHOTONIC_MEDIA" |
| 70 | |
| 71 | # |
| 72 | # Filter method used to keep only SIPs that are DSR |
| 73 | # |
| 74 | def is_dsr_media(sip): |
| 75 | return sip["layer-protocol-name"]=="DSR" |
| 76 | |
| 77 | # |
| 78 | # Processes the topology to verify the correctness |
| 79 | # |
| 80 | def process_topology(): |
| 81 | # TODO use method to parse topology |
| 82 | # Getting the Topology |
| 83 | # topology = context["tapi-common:context"]["tapi-topology:topology-context"]["topology"][0] |
| 84 | # nodes = topology["node"]; |
| 85 | # links = topology["link"]; |
| 86 | noop |
| 87 | |
| 88 | # |
| 89 | # Creates a connection first getting the context, parsing for SIPS and then issuing the request. |
| 90 | # |
| 91 | def create_connection(url_context, url_connectivity): |
| 92 | context = get_context(url_context) |
| 93 | return request_connection(url_connectivity, context) |
| 94 | |
| 95 | # |
| 96 | # Obtains existing connectivity services |
| 97 | # |
| 98 | def get_connection(url_connectivity, uuid): |
| 99 | if(uuid == ""): |
| 100 | json = '{}' |
| 101 | else: |
| 102 | #TODO use uuid to retrieve given topo |
| 103 | print "Not Yet implemented" |
| 104 | json = '{}' |
| 105 | headers = {'Content-type': 'application/json'} |
| 106 | resp = requests.post(url_connectivity, data=json, headers=headers, auth=('onos', 'rocks')) |
| 107 | if resp.status_code != 200: |
| 108 | raise Exception('POST {}'.format(resp.status_code)) |
| 109 | return resp |
| 110 | |
| 111 | |
| 112 | |
| 113 | |
| 114 | |
| 115 | |