1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
|
/*-
* ============LICENSE_START=======================================================
* SdnrOperation
* ================================================================================
* Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* 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=========================================================
*/
package org.onap.policy.controlloop.actor.sdnr;
import java.util.List;
import java.util.concurrent.CompletableFuture;
import org.onap.policy.controlloop.actorserviceprovider.OperationOutcome;
import org.onap.policy.controlloop.actorserviceprovider.OperationProperties;
import org.onap.policy.controlloop.actorserviceprovider.OperationResult;
import org.onap.policy.controlloop.actorserviceprovider.impl.BidirectionalTopicOperation;
import org.onap.policy.controlloop.actorserviceprovider.parameters.BidirectionalTopicConfig;
import org.onap.policy.controlloop.actorserviceprovider.parameters.ControlLoopOperationParams;
import org.onap.policy.controlloop.actorserviceprovider.topic.SelectorKey;
import org.onap.policy.sdnr.PciBody;
import org.onap.policy.sdnr.PciCommonHeader;
import org.onap.policy.sdnr.PciMessage;
import org.onap.policy.sdnr.PciRequest;
import org.onap.policy.sdnr.PciResponse;
import org.onap.policy.sdnr.util.StatusCodeEnum;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class SdnrOperation extends BidirectionalTopicOperation<PciMessage, PciMessage> {
private static final Logger logger = LoggerFactory.getLogger(SdnrOperation.class);
/**
* Operation name as it should appear within config files.
*/
public static final String NAME = "any";
private static final List<String> PROPERTY_NAMES = List.of(OperationProperties.EVENT_PAYLOAD);
/**
* Keys used to match the response with the request listener. The sub request ID is a
* UUID, so it can be used to uniquely identify the response.
* <p/>
* Note: if these change, then {@link #getExpectedKeyValues(int, PciMessage)} must be
* updated accordingly.
*/
public static final List<SelectorKey> SELECTOR_KEYS =
List.of(new SelectorKey("body", "output", "CommonHeader", "SubRequestID"));
public SdnrOperation(ControlLoopOperationParams params, BidirectionalTopicConfig config) {
super(params, config, PciMessage.class, PROPERTY_NAMES);
}
/**
* Note: these values must be in correspondence with {@link #SELECTOR_KEYS}.
*/
@Override
protected List<String> getExpectedKeyValues(int attempt, PciMessage request) {
return List.of(getSubRequestId());
}
@Override
protected CompletableFuture<OperationOutcome> startPreprocessorAsync() {
return startGuardAsync();
}
/*
* NOTE: This should avoid throwing exceptions, so that a ControlLoopResponse can be
* added to the outcome. Consequently, it returns FAILURE if a required field is
* missing from the response.
*/
@Override
protected Status detmStatus(String rawResponse, PciMessage responseWrapper) {
PciResponse response = responseWrapper.getBody().getOutput();
if (response.getStatus() == null) {
logger.warn("SDNR response is missing the response status");
return Status.FAILURE;
}
StatusCodeEnum code = StatusCodeEnum.fromStatusCode(response.getStatus().getCode());
if (code == null) {
logger.warn("unknown SDNR response status code: {}", response.getStatus().getCode());
return Status.FAILURE;
}
switch (code) {
case SUCCESS:
case PARTIAL_SUCCESS:
return Status.SUCCESS;
case FAILURE:
case PARTIAL_FAILURE:
return Status.FAILURE;
case ERROR:
case REJECT:
logger.warn("SDNR request was not accepted, code={}", code);
return Status.FAILURE;
case ACCEPTED:
default:
// awaiting a "final" response
return Status.STILL_WAITING;
}
}
/**
* Sets the message to the status description, if available.
*/
@Override
public OperationOutcome setOutcome(OperationOutcome outcome, OperationResult result, PciMessage responseWrapper) {
outcome.setResponse(responseWrapper);
if (responseWrapper.getBody() == null || responseWrapper.getBody().getOutput() == null) {
return setOutcome(outcome, result);
}
PciResponse pciResponse = responseWrapper.getBody().getOutput();
if (pciResponse.getStatus() == null || pciResponse.getStatus().getValue() == null) {
return setOutcome(outcome, result);
}
outcome.setResult(result);
outcome.setMessage(pciResponse.getStatus().getValue());
return outcome;
}
@Override
protected PciMessage makeRequest(int attempt) {
String subRequestId = getSubRequestId();
/* Construct an SDNR request using pci Model */
PciMessage dmaapRequest = new PciMessage();
dmaapRequest.setVersion("1.0");
dmaapRequest.setCorrelationId(params.getRequestId() + "-" + subRequestId);
dmaapRequest.setType("request");
dmaapRequest.setRpcName(params.getOperation().toLowerCase());
/* This is the actual request that is placed in the dmaap wrapper. */
final PciRequest sdnrRequest = new PciRequest();
/* The common header is a required field for all SDNR requests. */
PciCommonHeader requestCommonHeader = new PciCommonHeader();
requestCommonHeader.setRequestId(params.getRequestId());
requestCommonHeader.setSubRequestId(subRequestId);
sdnrRequest.setCommonHeader(requestCommonHeader);
sdnrRequest.setPayload(getEventPayload());
sdnrRequest.setAction(params.getOperation());
/*
* Once the pci request is constructed, add it into the body of the dmaap wrapper.
*/
PciBody body = new PciBody();
body.setInput(sdnrRequest);
dmaapRequest.setBody(body);
/* Return the request to be sent through dmaap. */
return dmaapRequest;
}
/**
* Gets the event payload, first checking for it in the properties and then in the
* event.
*
* @return the event payload
*/
protected String getEventPayload() {
if (containsProperty(OperationProperties.EVENT_PAYLOAD)) {
return getProperty(OperationProperties.EVENT_PAYLOAD);
}
return params.getContext().getEvent().getPayload();
}
}
|
