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
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
|
/*
* Copyright 2016-2017, Nokia Corporation
*
* 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.
*/
package org.onap.vfc.nfvo.driver.vnfm.svnfm.nokia.packagetransformer;
import com.google.gson.Gson;
import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import org.jetbrains.annotations.Nullable;
import org.yaml.snakeyaml.Yaml;
import java.util.Map;
import java.util.NoSuchElementException;
import java.util.Set;
import static org.onap.vfc.nfvo.driver.vnfm.svnfm.nokia.util.CbamUtils.child;
import static org.onap.vfc.nfvo.driver.vnfm.svnfm.nokia.util.CbamUtils.childElement;
/**
* Transforms a CBAM package into an ONAP package
*/
public class OnapVnfdBuilder {
public static final String DESCRIPTION = "description";
public static final String PROPERTIES = "properties";
public static final String REQUIREMENTS = "requirements";
/**
* @param cbamVnfd the CBAM VNFD
* @return the converted ONAP VNFD
*/
public String toOnapVnfd(String cbamVnfd) {
JsonObject root = new Gson().toJsonTree(new Yaml().load(cbamVnfd)).getAsJsonObject();
JsonObject topologyTemplate = child(root, "topology_template");
if (topologyTemplate.has("node_templates")) {
Set<Map.Entry<String, JsonElement>> nodeTemplates = child(topologyTemplate, "node_templates").entrySet();
StringBuilder body = new StringBuilder();
for (Map.Entry<String, JsonElement> node : nodeTemplates) {
String type = childElement(node.getValue().getAsJsonObject(), "type").getAsString();
switch (type) {
case "tosca.nodes.nfv.VDU":
body.append(buildVdu(node.getKey(), node.getValue().getAsJsonObject(), nodeTemplates));
break;
case "tosca.nodes.nfv.VirtualStorage":
body.append(buildVolume(node.getKey(), node.getValue().getAsJsonObject()));
break;
case "tosca.nodes.nfv.VL":
body.append(buildVl(node.getKey()));
break;
case "tosca.nodes.nfv.ICP":
body.append(buildIcp(node.getKey(), node.getValue().getAsJsonObject()));
break;
case "tosca.nodes.nfv.ECP":
body.append(buildEcp(node.getKey(), node.getValue(), nodeTemplates));
break;
default:
//
}
}
return buildHeader(topologyTemplate) + body.toString();
}
return buildHeader(topologyTemplate);
}
private String buildHeader(JsonObject toplogyTemplate) {
JsonObject properties = child(child(toplogyTemplate, "substitution_mappings"), PROPERTIES);
String descriptorVersion = properties.get("descriptor_version").getAsString();
return "tosca_definitions_version: tosca_simple_yaml_1_0\n" +
"\n" +
"metadata:\n" +
" vendor: Nokia\n" +
" csarVersion: " + descriptorVersion + "\n" +
" csarProvider: " + properties.get("provider").getAsString() + "\n" +
" id: Simple\n" +
" version: " + properties.get("software_version").getAsString() + "\n" +
" csarType: NFAR\n" +
" name: " + properties.get("product_name").getAsString() + "\n" +
" vnfdVersion: " + descriptorVersion + "\n\n" +
"topology_template:\n" +
" node_templates:\n";
}
private JsonElement get(String name, Set<Map.Entry<String, JsonElement>> nodes) {
for (Map.Entry<String, JsonElement> node : nodes) {
if (name.equals(node.getKey())) {
return node.getValue();
}
}
throw new NoSuchElementException("The VNFD does not have a node called " + name + " but required by an other node");
}
private String buildVdu(String name, JsonObject vdu, Set<Map.Entry<String, JsonElement>> nodes) {
String memorySize = "";
String cpuCount = "";
StringBuilder body = new StringBuilder();
JsonArray vduRequirements = childElement(vdu.getAsJsonObject(), REQUIREMENTS).getAsJsonArray();
for (int i = 0; i < vduRequirements.size(); i++) {
JsonObject requirement = vduRequirements.get(i).getAsJsonObject();
Map.Entry<String, JsonElement> next = requirement.entrySet().iterator().next();
String s = next.getKey();
if ("virtual_compute".equals(s)) {
JsonObject virtualCompute = get(next.getValue().getAsString(), nodes).getAsJsonObject();
cpuCount = childElement(child(child(virtualCompute, PROPERTIES), "virtual_cpu"), "num_virtual_cpu").getAsString();
memorySize = childElement(child(child(virtualCompute, PROPERTIES), "virtual_memory"), "virtual_mem_size").getAsString();
} else if ("virtual_storage".equals(s)) {
String item =
" - virtual_storage:\n" +
" capability: tosca.capabilities.nfv.VirtualStorage\n" +
" node: " + next.getValue().getAsString() + "\n";
body.append(item);
}
next.getValue();
}
String header = " " + name + ":\n" +
" type: tosca.nodes.nfv.VDU.Compute\n" +
" capabilities:\n" +
" virtual_compute:\n" +
" properties:\n" +
" virtual_memory:\n" +
" virtual_mem_size: " + memorySize + "\n" +
" virtual_cpu:\n" +
" num_virtual_cpu: " + cpuCount + "\n" +
" " + REQUIREMENTS + ":\n";
return header + body.toString();
}
private String buildEcp(String name, JsonElement ecp, Set<Map.Entry<String, JsonElement>> nodes) {
if (ecp.getAsJsonObject().has(REQUIREMENTS)) {
JsonArray requirements = ecp.getAsJsonObject().get(REQUIREMENTS).getAsJsonArray();
String icpName = getIcpName(requirements);
if (icpName != null) {
JsonObject icpNode = get(icpName, nodes).getAsJsonObject();
if (icpNode.has(REQUIREMENTS)) {
requirements = icpNode.getAsJsonObject().get(REQUIREMENTS).getAsJsonArray();
String vdu = getVdu(requirements);
if (vdu != null) {
JsonObject properties = child(icpNode, PROPERTIES);
return buildVduCpd(name, vdu, properties);
}
}
}
}
return "";
}
@Nullable
private String getVdu(JsonArray requirements) {
String vdu = null;
for (int i = 0; i < requirements.size(); i++) {
JsonElement requirement = requirements.get(i);
Map.Entry<String, JsonElement> next = requirement.getAsJsonObject().entrySet().iterator().next();
String s = next.getKey();
if ("virtual_binding".equals(s)) {
vdu = next.getValue().getAsString();
}
}
return vdu;
}
@Nullable
private String getIcpName(JsonArray requirements) {
String icpName = null;
for (int i = 0; i < requirements.size(); i++) {
JsonElement requirement = requirements.get(i);
Map.Entry<String, JsonElement> next = requirement.getAsJsonObject().entrySet().iterator().next();
String s = next.getKey();
if ("internal_connection_point".equals(s)) {
icpName = next.getValue().getAsString();
}
}
return icpName;
}
private String buildVduCpd(String name, String vdu, JsonObject properties) {
return " " + name + ":\n" +
" type: tosca.nodes.nfv.VduCpd\n" +
" " + PROPERTIES + ":\n" +
" layer_protocol: " + childElement(properties, "layer_protocol").getAsString() + "\n" +
" role: leaf\n" +
(properties.has(DESCRIPTION) ?
" description: " + childElement(properties, DESCRIPTION).getAsString() + "\n" : "") +
" requirements:\n" +
" - virtual_binding: " + vdu + "\n";
}
private String buildIcp(String name, JsonObject icp) {
if (icp.has(REQUIREMENTS)) {
JsonArray requirements = icp.get(REQUIREMENTS).getAsJsonArray();
String vdu = null;
String vl = null;
for (int i = 0; i < requirements.size(); i++) {
JsonElement requirement = requirements.get(i);
Map.Entry<String, JsonElement> next = requirement.getAsJsonObject().entrySet().iterator().next();
String s = next.getKey();
if ("virtual_binding".equals(s)) {
vdu = next.getValue().getAsString();
} else if ("virtual_link".equals(s)) {
vl = next.getValue().getAsString();
}
}
if (vdu != null && vl != null) {
JsonObject properties = child(icp, PROPERTIES);
return " " + name + ":\n" +
" type: tosca.nodes.nfv.VduCpd\n" +
" " + PROPERTIES + ":\n" +
" layer_protocol: " + childElement(properties, "layer_protocol").getAsString() + "\n" +
" role: leaf\n" + (properties.has(DESCRIPTION) ?
" description: " + childElement(properties, DESCRIPTION).getAsString() + "\n" : "") +
" requirements:\n" +
" - virtual_binding: " + vdu + "\n" +
" - virtual_link: " + vl + "\n";
}
}
return "";
}
private String buildVolume(String nodeName, JsonObject volume) {
return " " + nodeName + ":\n" +
" type: tosca.nodes.nfv.VDU.VirtualStorage\n" +
" properties:\n" +
" id: " + nodeName + "\n" +
" type_of_storage: volume\n" +
" size_of_storage: " + childElement(child(volume, PROPERTIES), "size_of_storage").getAsString() + "\n";
}
private String buildVl(String name) {
return " " + name + ":\n" +
" type: tosca.nodes.nfv.VnfVirtualLinkDesc\n" +
" properties:\n" +
" vl_flavours:\n" +
" flavours:\n" +
" flavourId: notUsed\n";
}
}
|
