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
|
/*-
* ============LICENSE_START=======================================================
* openECOMP : SDN-C
* ================================================================================
* Copyright (C) 2017 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.ccsdk.sli.northbound.dmaapclient;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.node.ObjectNode;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class SdncFlatJsonDmaapConsumer extends SdncDmaapConsumer {
private static final Logger LOG = LoggerFactory.getLogger(SdncFlatJsonDmaapConsumer.class);
private static final String DMAAPLISTENERROOT = "DMAAPLISTENERROOT";
private static final String SDNC_ENDPOINT = "SDNC.endpoint";
@Override
public void processMsg(String msg) throws InvalidMessageException {
processMsg(msg, null);
}
public void processMsg(String msg, String mapDirName) throws InvalidMessageException {
if (msg == null) {
throw new InvalidMessageException("Null message");
}
ObjectMapper oMapper = new ObjectMapper();
JsonNode instarRootNode;
ObjectNode sdncRootNode;
String instarMsgName = null;
try {
instarRootNode = oMapper.readTree(msg);
} catch (Exception e) {
throw new InvalidMessageException("Cannot parse json object", e);
}
Iterator<Map.Entry<String, JsonNode>> instarFields = instarRootNode.fields();
while (instarFields.hasNext()) {
Map.Entry<String, JsonNode> entry = instarFields.next();
instarMsgName = entry.getKey();
instarRootNode = entry.getValue();
break;
}
Map<String, String> fieldMap = loadMap(instarMsgName, mapDirName);
if (fieldMap == null) {
throw new InvalidMessageException("Unable to process message - cannot load field mappings");
}
if (!fieldMap.containsKey(SDNC_ENDPOINT)) {
throw new InvalidMessageException("No SDNC endpoint known for message " + instarMsgName);
}
String sdncEndpoint = fieldMap.get(SDNC_ENDPOINT);
sdncRootNode = oMapper.createObjectNode();
ObjectNode inputNode = oMapper.createObjectNode();
for (Map.Entry<String, String> entry : fieldMap.entrySet()) {
if (!SDNC_ENDPOINT.equals(entry.getKey())) {
JsonNode curNode = instarRootNode.get(entry.getKey());
if (curNode != null) {
String fromValue = curNode.textValue();
inputNode.put(entry.getValue(), fromValue);
}
}
}
sdncRootNode.put("input", inputNode);
try {
String rpcMsgbody = oMapper.writeValueAsString(sdncRootNode);
String odlUrlBase = getProperty("sdnc.odl.url-base");
String odlUser = getProperty("sdnc.odl.user");
String odlPassword = getProperty("sdnc.odl.password");
if ((odlUrlBase != null) && (odlUrlBase.length() > 0)) {
SdncOdlConnection conn = SdncOdlConnection.newInstance(odlUrlBase + sdncEndpoint, odlUser, odlPassword);
conn.send("POST", "application/json", rpcMsgbody);
} else {
LOG.info("POST message body would be:\n" + rpcMsgbody);
}
} catch (Exception e) {
LOG.error("Unable to process message", e);
}
}
private Map<String, String> loadMap(String msgType, String mapDirName) {
Map<String, String> results = new HashMap<>();
String dirName = mapDirName;
if (mapDirName == null) {
String rootdir = System.getenv(DMAAPLISTENERROOT);
if ((rootdir == null) || (rootdir.length() == 0)) {
rootdir = "/opt/app/dmaap-listener";
}
dirName = rootdir + "/lib";
}
String mapFilename = dirName + "/" + msgType + ".map";
File mapFile = new File(mapFilename);
if (!mapFile.canRead()) {
LOG.error(String.format("Cannot read map file (%s)", mapFilename));
return null;
}
try (BufferedReader mapReader = new BufferedReader(new FileReader(mapFile))) {
String curLine;
while ((curLine = mapReader.readLine()) != null) {
curLine = curLine.trim();
if ((curLine.length() > 0) && (!curLine.startsWith("#")) && curLine.contains("=>")) {
String[] entry = curLine.split("=>");
if (entry.length == 2) {
results.put(entry[0].trim(), entry[1].trim());
}
}
}
mapReader.close();
} catch (Exception e) {
LOG.error("Caught exception reading map " + mapFilename, e);
return null;
}
return results;
}
}
|
