2 * ========================LICENSE_START=================================
5 * Copyright (C) 2019 AT&T Intellectual Property
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 * ========================LICENSE_END===================================
20 package org.oransc.ric.portal.dashboard.policyagentapi;
22 import com.google.gson.GsonBuilder;
23 import com.google.gson.JsonArray;
24 import com.google.gson.JsonElement;
25 import com.google.gson.JsonObject;
26 import com.google.gson.JsonParser;
27 import com.google.gson.reflect.TypeToken;
29 import java.lang.invoke.MethodHandles;
30 import java.lang.reflect.Type;
31 import java.util.ArrayList;
32 import java.util.Collection;
33 import java.util.List;
36 import org.immutables.gson.Gson;
37 import org.immutables.value.Value;
38 import org.oransc.ric.portal.dashboard.model.ImmutablePolicyInfo;
39 import org.oransc.ric.portal.dashboard.model.PolicyInfo;
40 import org.oransc.ric.portal.dashboard.model.PolicyInstances;
41 import org.oransc.ric.portal.dashboard.model.PolicyType;
42 import org.oransc.ric.portal.dashboard.model.PolicyTypes;
43 import org.slf4j.Logger;
44 import org.slf4j.LoggerFactory;
45 import org.springframework.beans.factory.annotation.Autowired;
46 import org.springframework.http.HttpEntity;
47 import org.springframework.http.HttpHeaders;
48 import org.springframework.http.HttpStatus;
49 import org.springframework.http.MediaType;
50 import org.springframework.http.ResponseEntity;
51 import org.springframework.stereotype.Component;
52 import org.springframework.web.client.RestTemplate;
54 @Component("PolicyAgentApi")
55 public class PolicyAgentApiImpl implements PolicyAgentApi {
56 private static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
58 RestTemplate restTemplate = new RestTemplate();
60 private static com.google.gson.Gson gson = new GsonBuilder() //
64 private final String urlPrefix;
67 public PolicyAgentApiImpl(
68 @org.springframework.beans.factory.annotation.Value("${policycontroller.url.prefix}") final String urlPrefix) {
69 logger.debug("ctor prefix '{}'", urlPrefix);
70 this.urlPrefix = urlPrefix;
73 private String baseUrl() {
79 interface PolicyTypeInfo {
83 public String schema();
87 public ResponseEntity<String> getAllPolicyTypes() {
89 String url = baseUrl() + "/policy_schemas";
90 ResponseEntity<String> rsp = this.restTemplate.getForEntity(url, String.class);
91 if (!rsp.getStatusCode().is2xxSuccessful()) {
95 PolicyTypes result = new PolicyTypes();
96 JsonParser jsonParser = new JsonParser();
98 JsonArray schemas = jsonParser.parse(rsp.getBody()).getAsJsonArray();
99 for (JsonElement schema : schemas) {
100 JsonObject schemaObj = schema.getAsJsonObject();
101 String title = schemaObj.get("title").getAsString();
102 String schemaAsStr = schemaObj.toString();
103 PolicyType pt = new PolicyType(title, schemaAsStr);
106 return new ResponseEntity<>(gson.toJson(result), rsp.getStatusCode());
107 } catch (Exception e) {
108 return new ResponseEntity<>(e.getMessage(), HttpStatus.INTERNAL_SERVER_ERROR);
113 public ResponseEntity<String> getPolicyInstancesForType(String type) {
114 String url = baseUrl() + "/policies?type={type}";
115 Map<String, ?> uriVariables = Map.of("type", type);
116 ResponseEntity<String> rsp = this.restTemplate.getForEntity(url, String.class, uriVariables);
117 if (!rsp.getStatusCode().is2xxSuccessful()) {
122 Type listType = new TypeToken<List<ImmutablePolicyInfo>>() {}.getType();
123 List<PolicyInfo> rspParsed = gson.fromJson(rsp.getBody(), listType);
124 PolicyInstances result = new PolicyInstances();
125 for (PolicyInfo p : rspParsed) {
128 return new ResponseEntity<>(gson.toJson(result), rsp.getStatusCode());
129 } catch (Exception e) {
130 return new ResponseEntity<>(e.getMessage(), HttpStatus.INTERNAL_SERVER_ERROR);
135 public ResponseEntity<Object> getPolicyInstance(String id) {
136 String url = baseUrl() + "/policy?instance={id}";
137 Map<String, ?> uriVariables = Map.of("id", id);
139 return this.restTemplate.getForEntity(url, Object.class, uriVariables);
143 public ResponseEntity<String> putPolicy(String policyTypeIdString, String policyInstanceId, Object json,
145 String url = baseUrl() + "/policy?type={type}&instance={instance}&ric={ric}&service={service}";
146 Map<String, ?> uriVariables = Map.of( //
147 "type", policyTypeIdString, //
148 "instance", policyInstanceId, //
150 "service", "dashboard");
153 this.restTemplate.put(url, createJsonHttpEntity(json), uriVariables);
154 return new ResponseEntity<>(HttpStatus.OK);
155 } catch (Exception e) {
156 return new ResponseEntity<>(e.getMessage(), HttpStatus.INTERNAL_SERVER_ERROR);
161 public ResponseEntity<String> deletePolicy(String policyInstanceId) {
162 String url = baseUrl() + "/policy?instance={instance}";
163 Map<String, ?> uriVariables = Map.of("instance", policyInstanceId);
165 this.restTemplate.delete(url, uriVariables);
166 return new ResponseEntity<>(HttpStatus.OK);
167 } catch (Exception e) {
168 return new ResponseEntity<>(e.getMessage(), HttpStatus.NOT_FOUND);
176 public String ricName();
178 public Collection<String> nodeNames();
180 public Collection<String> policyTypes();
184 public ResponseEntity<String> getRicsSupportingType(String typeName) {
185 String url = baseUrl() + "/rics?policyType={typeName}";
186 Map<String, ?> uriVariables = Map.of("typeName", typeName);
187 String rsp = this.restTemplate.getForObject(url, String.class, uriVariables);
190 Type listType = new TypeToken<List<ImmutableRicInfo>>() {}.getType();
191 List<RicInfo> rspParsed = gson.fromJson(rsp, listType);
192 Collection<String> result = new ArrayList<>(rspParsed.size());
193 for (RicInfo ric : rspParsed) {
194 result.add(ric.ricName());
196 return new ResponseEntity<>(gson.toJson(result), HttpStatus.OK);
197 } catch (Exception e) {
198 return new ResponseEntity<>(e.getMessage(), HttpStatus.INTERNAL_SERVER_ERROR);
202 private HttpEntity<Object> createJsonHttpEntity(Object content) {
203 HttpHeaders headers = new HttpHeaders();
204 headers.setContentType(MediaType.APPLICATION_JSON);
205 return new HttpEntity<>(content, headers);