X-Git-Url: https://gerrit.o-ran-sc.org/r/gitweb?a=blobdiff_plain;f=AcumosXappAdapter%2Frmracumosadapter.py;fp=AcumosXappAdapter%2Frmracumosadapter.py;h=16ce7263856e8869ba5f5befdddb00c0b27cca07;hb=d53cfa8dd719817cbfea48ad032c8181515df2a3;hp=0000000000000000000000000000000000000000;hpb=e8b074b74616674d29327d306f88cca56ffd0ae2;p=ric-app%2Fml.git

diff --git a/AcumosXappAdapter/rmracumosadapter.py b/AcumosXappAdapter/rmracumosadapter.py
new file mode 100644
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+++ b/AcumosXappAdapter/rmracumosadapter.py
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+# ========================LICENSE_START=================================
+#   O-RAN-SC
+#   %%
+#   Copyright (c) 2019 AT&T Intellectual Property.
+#   %%
+#   Licensed under the Apache License, Version 2.0 (the "License");
+#   you may not use this file except in compliance with the License.
+#   You may obtain a copy of the License at
+#
+#          http://www.apache.org/licenses/LICENSE-2.0
+#
+#   Unless required by applicable law or agreed to in writing, software
+#   distributed under the License is distributed on an "AS IS" BASIS,
+#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#   See the License for the specific language governing permissions and
+#   limitations under the License.
+# ========================LICENSE_END===================================
+
+# Adapter from RMR to standard Acumos model microservices. Must be deployed in the same pod as the Acumos model.
+# Translates RMR protocol messages into calls into Acumos RPC calls.
+
+
+from rmr import rmr
+import time
+import sys
+import signal
+import json
+import requests
+
+verbose = True
+requireartifacts = True
+
+confdir = '/conf/'
+conffilename = 'config.json'
+protobuffilename = 'model.proto'
+metadatafilename = 'metadata.json'
+
+configfilename = confdir + conffilename
+
+if verbose:
+    print("Reading config file")
+
+# Fetch and parse config file which must be mounted as a volume during deployment
+try:
+    with open(configfilename) as f:
+        conf = json.load(f)
+except:
+    print('Cannot read/parse config file at', configfilename, '; aborting')
+    exit(1)
+
+methodurl = conf['microserviceRootURL'] + conf['methodRoot']
+artifacturl = conf["microserviceRootURL"] + conf['artifactRoot']
+
+if verbose:
+    print ('\nRetrieving artifacts from Acumos model microservice\n')
+
+# See if we can retrieve protobuf and metadata artifacts from running model. Not all models may provide these, but we
+# should have a retry mechanism added for robustness
+try:
+    r = requests.get(artifacturl + 'protobuf')
+    protobuf = r.content
+    with open(confdir + protobuffilename, 'wb') as f:
+        f.write(protobuf)
+    if verbose:
+        print('Protbuf:')
+        print(protobuf.decode('ascii'))
+    r = requests.get(artifacturl + 'metadata')
+    metadata = r.content
+    with open(confdir + metadatafilename, 'wb') as f:
+        f.write(metadata)
+    if verbose:
+        print('\nMetadata:')
+        print(metadata.decode('ascii'))
+except:
+    if requireartifacts:
+        print('Problem with retrieving/saving model protobuf and/or metadata; aborting.')
+
+method1 = conf['methods']['1']
+method1url = methodurl + method1['service']
+method1headers = {'content-type': method1['content-type'], 'accept': method1['return-type']}
+
+if verbose:
+    print('\nInitializing RMR\n')
+
+if verbose:
+    print('\Awaiting connections')
+
+
+# NNG cleanup on signal
+def signal_handler(sig, frame):
+    if verbose:
+        print('SIGINT received! Cleaning up rmr')
+    rmr.rmr_close(mrc)
+    print("Exiting")
+    sys.exit(0)
+
+
+# Initialize RMR
+mrc = rmr.rmr_init("4560".encode('utf-8'), rmr.RMR_MAX_RCV_BYTES, 0x00)
+while rmr.rmr_ready(mrc) == 0:
+    time.sleep(1)
+    if verbose:
+        print("Not yet ready")
+rmr.rmr_set_stimeout(mrc, 2)
+
+
+# Capture ctrl-c
+signal.signal(signal.SIGINT, signal_handler)
+
+
+sbuf = None
+while True:
+    if verbose:
+        print("Waiting for a message; will time out after 2000ms")
+    sbuf = rmr.rmr_torcv_msg(mrc, sbuf, 2000)
+    summary = rmr.message_summary(sbuf)
+    if verbose and summary['message state'] == 12:
+        print("Nothing received.")
+    else:
+        if verbose:
+            print("Message received: {}".format(summary))
+        payload = sbuf['payload']
+        # Call Acumos microservice
+        r = requests.post(method1url, headers=method1headers, body=payload)
+        val = r.content
+        rmr.set_payload_and_length(val, sbuf)
+        sbuf = rmr.rmr_rts_msg(mrc, sbuf)