2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2019 Nokia Intellectual Property. All rights
7 * ================================================================================
8 * Licensed under the Apache License, Version 2.0 (the "License");
9 * you may not use this file except in compliance with the License.
10 * You may obtain a copy of the License at
12 * http://www.apache.org/licenses/LICENSE-2.0
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
19 * ============LICENSE_END============================================
20 * Modifications copyright (c) 2019 AT&T
21 * ===================================================================
25 package org.onap.clamp.clds.sdc.controller.installer;
27 import com.google.gson.Gson;
28 import com.google.gson.JsonArray;
29 import com.google.gson.JsonElement;
30 import com.google.gson.JsonObject;
32 import java.util.AbstractMap;
33 import java.util.Collections;
34 import java.util.HashSet;
35 import java.util.List;
37 import java.util.Map.Entry;
40 import org.json.JSONObject;
41 import org.springframework.stereotype.Component;
42 import org.yaml.snakeyaml.Yaml;
45 public class BlueprintParser {
47 static final String TCA = "TCA";
48 static final String HOLMES = "Holmes";
49 private static final String TCA_POLICY = "tca_policy";
50 private static final String HOLMES_PREFIX = "holmes";
51 private static final String NODE_TEMPLATES = "node_templates";
52 private static final String DCAE_NODES = "dcae.nodes.";
53 private static final String TYPE = "type";
54 private static final String PROPERTIES = "properties";
55 private static final String NAME = "name";
56 private static final String INPUT = "inputs";
57 private static final String GET_INPUT = "get_input";
58 private static final String POLICY_MODELID = "policy_model_id";
59 private static final String RELATIONSHIPS = "relationships";
60 private static final String CLAMP_NODE_RELATIONSHIPS_GETS_INPUT_FROM = "clamp_node.relationships.gets_input_from";
61 private static final String TARGET = "target";
63 public Set<MicroService> getMicroServices(String blueprintString) {
64 Set<MicroService> microServices = new HashSet<>();
65 JsonObject blueprintJson = BlueprintParser.convertToJson(blueprintString);
66 JsonObject nodeTemplateList = blueprintJson.get(NODE_TEMPLATES).getAsJsonObject();
67 JsonObject inputList = blueprintJson.get(INPUT).getAsJsonObject();
69 for (Entry<String, JsonElement> entry : nodeTemplateList.entrySet()) {
70 JsonObject nodeTemplate = entry.getValue().getAsJsonObject();
71 if (nodeTemplate.get(TYPE).getAsString().contains(DCAE_NODES)) {
72 MicroService microService = getNodeRepresentation(entry, nodeTemplateList, inputList);
73 microServices.add(microService);
76 microServices.removeIf(ms -> TCA_POLICY.equals(ms.getName()));
80 public List<MicroService> fallbackToOneMicroService(String blueprintString) {
81 JsonObject jsonObject = BlueprintParser.convertToJson(blueprintString);
82 JsonObject results = jsonObject.get(NODE_TEMPLATES).getAsJsonObject();
83 String theBiggestMicroServiceContent = "";
84 String theBiggestMicroServiceKey = "";
85 for (Entry<String, JsonElement> entry : results.entrySet()) {
86 String msAsString = entry.getValue().toString();
87 int len = msAsString.length();
88 if (len > theBiggestMicroServiceContent.length()) {
89 theBiggestMicroServiceContent = msAsString;
90 theBiggestMicroServiceKey = entry.getKey();
93 String msName = theBiggestMicroServiceKey.toLowerCase().contains(HOLMES_PREFIX) ? HOLMES : TCA;
95 .singletonList(new MicroService(msName, "onap.policies.monitoring.cdap.tca.hi.lo.app", "", ""));
98 String getName(Entry<String, JsonElement> entry) {
99 String microServiceYamlName = entry.getKey();
100 JsonObject ob = entry.getValue().getAsJsonObject();
101 if (ob.has(PROPERTIES)) {
102 JsonObject properties = ob.get(PROPERTIES).getAsJsonObject();
103 if (properties.has(NAME)) {
104 return properties.get(NAME).getAsString();
107 return microServiceYamlName;
110 String getInput(Entry<String, JsonElement> entry) {
111 JsonObject ob = entry.getValue().getAsJsonObject();
112 if (ob.has(RELATIONSHIPS)) {
113 JsonArray relationships = ob.getAsJsonArray(RELATIONSHIPS);
114 for (JsonElement element : relationships) {
115 String target = getTarget(element.getAsJsonObject());
116 if (!target.isEmpty()) {
124 String findModelTypeInTargetArray(JsonArray jsonArray, JsonObject nodeTemplateList, JsonObject inputList) {
125 for (JsonElement elem : jsonArray) {
126 String modelType = getModelType(
127 new AbstractMap.SimpleEntry<String, JsonElement>(elem.getAsJsonObject().get(TARGET).getAsString(),
128 nodeTemplateList.get(elem.getAsJsonObject().get(TARGET).getAsString()).getAsJsonObject()),
129 nodeTemplateList, inputList);
130 if (!modelType.isEmpty()) {
137 String getModelType(Entry<String, JsonElement> entry, JsonObject nodeTemplateList, JsonObject inputList) {
138 JsonObject ob = entry.getValue().getAsJsonObject();
139 // Search first in this node template
140 if (ob.has(PROPERTIES)) {
141 JsonObject properties = ob.get(PROPERTIES).getAsJsonObject();
142 if (properties.has(POLICY_MODELID)) {
143 if (properties.get(POLICY_MODELID).isJsonObject()) {
144 // it's a blueprint parameter
145 return inputList.get(properties.get(POLICY_MODELID).getAsJsonObject().get(GET_INPUT).getAsString())
146 .getAsJsonObject().get("default").getAsString();
148 // It's a direct value
149 return properties.get(POLICY_MODELID).getAsString();
153 // Or it's may be defined in a relationship
154 if (ob.has(RELATIONSHIPS)) {
155 return findModelTypeInTargetArray(ob.get(RELATIONSHIPS).getAsJsonArray(), nodeTemplateList, inputList);
160 MicroService getNodeRepresentation(Entry<String, JsonElement> entry, JsonObject nodeTemplateList,
161 JsonObject inputList) {
162 String name = getName(entry);
163 String getInputFrom = getInput(entry);
164 String modelType = getModelType(entry, nodeTemplateList, inputList);
165 return new MicroService(name, modelType, getInputFrom, "");
168 private String getTarget(JsonObject elementObject) {
169 if (elementObject.has(TYPE) && elementObject.has(TARGET)
170 && elementObject.get(TYPE).getAsString().equals(CLAMP_NODE_RELATIONSHIPS_GETS_INPUT_FROM)) {
171 return elementObject.get(TARGET).getAsString();
176 private static JsonObject convertToJson(String yamlString) {
177 Yaml yaml = new Yaml();
178 Map<String, Object> map = yaml.load(yamlString);
180 JSONObject jsonObject = new JSONObject(map);
181 return new Gson().fromJson(jsonObject.toString(), JsonObject.class);