webapp-backend/src/test/java/org/oransc/portal/nonrtric/controlpanel/config/PolicyControllerMockConfiguration.java

   1 /*-
   2  * ========================LICENSE_START=================================
   3  * O-RAN-SC
   4  * %%
   5  * Copyright (C) 2019 Nordix Foundation
   6  * Modifications Copyright (C) 2020 Nordix Foundation
   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
  11  *
  12  *      http://www.apache.org/licenses/LICENSE-2.0
  13  *
  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  */
  21 package org.oransc.portal.nonrtric.controlpanel.config;
  22
  23 import com.google.gson.GsonBuilder;
  24
  25 import java.io.BufferedReader;
  26 import java.io.InputStream;
  27 import java.io.InputStreamReader;
  28 import java.lang.invoke.MethodHandles;
  29 import java.util.ArrayList;
  30 import java.util.Collection;
  31 import java.util.HashMap;
  32 import java.util.List;
  33 import java.util.Map;
  34 import java.util.Optional;
  35 import java.util.Vector;
  36 import java.util.stream.Collectors;
  37 import org.oransc.portal.nonrtric.controlpanel.model.PolicyInfo;
  38 import org.oransc.portal.nonrtric.controlpanel.model.PolicyInstances;
  39 import org.oransc.portal.nonrtric.controlpanel.model.PolicyType;
  40 import org.oransc.portal.nonrtric.controlpanel.model.PolicyTypes;
  41 import org.oransc.portal.nonrtric.controlpanel.policyagentapi.PolicyAgentApi;
  42 import org.oransc.portal.nonrtric.controlpanel.model.ImmutablePolicyInfo;
  43 import org.slf4j.Logger;
  44 import org.slf4j.LoggerFactory;
  45 import org.springframework.boot.test.context.TestConfiguration;
  46 import org.springframework.context.annotation.Bean;
  47 import org.springframework.http.HttpStatus;
  48 import org.springframework.http.ResponseEntity;
  49 import org.springframework.web.client.RestClientException;
  50
  51 /**
  52  * Creates a mock implementation of the policy controller client API.
  53  */
  54 @TestConfiguration
  55 public class PolicyControllerMockConfiguration {
  56
  57     private static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
  58
  59     private static com.google.gson.Gson gson = new GsonBuilder() //
  60         .serializeNulls() //
  61         .create(); //
  62
  63     @Bean
  64     public PolicyAgentApi policyAgentApi() {
  65         MockPolicyAgentApi apiClient = new MockPolicyAgentApi();
  66         return apiClient;
  67     }
  68
  69     class MockPolicyAgentApi implements PolicyAgentApi {
  70         private final Database database = new Database();
  71
  72         @Override
  73         public ResponseEntity<Object> getPolicyInstance(String id) {
  74             return new ResponseEntity<>(database.getInstance(id), HttpStatus.OK);
  75         }
  76
  77         @Override
  78         public ResponseEntity<String> putPolicy(String policyTypeIdString, String policyInstanceId, Object json,
  79             String ric) {
  80             database.putInstance(policyTypeIdString, policyInstanceId, json, ric);
  81             return new ResponseEntity<>("Policy was put successfully", HttpStatus.OK);
  82         }
  83
  84         @Override
  85         public ResponseEntity<String> deletePolicy(String policyInstanceId) {
  86             database.deleteInstance(policyInstanceId);
  87             return new ResponseEntity<>("Policy was deleted successfully", HttpStatus.NO_CONTENT);
  88         }
  89
  90         @Override
  91         public ResponseEntity<String> getAllPolicyTypes() {
  92             PolicyTypes result = new PolicyTypes();
  93             result.addAll(database.getTypes());
  94             return new ResponseEntity<>(gson.toJson(result), HttpStatus.OK);
  95         }
  96
  97         @Override
  98         public ResponseEntity<String> getPolicyInstancesForType(String type) {
  99             PolicyInstances result = new PolicyInstances();
 100             List<PolicyInfo> inst = database.getInstances(Optional.of(type));
 101             result.addAll(inst);
 102             return new ResponseEntity<>(gson.toJson(result), HttpStatus.OK);
 103         }
 104
 105         @Override
 106         public ResponseEntity<String> getRicsSupportingType(String typeName) {
 107             Vector<String> res = new Vector<>();
 108             res.add("ric_1");
 109             res.add("ric_2");
 110             res.add("ric_3");
 111             return new ResponseEntity<>(gson.toJson(res), HttpStatus.OK);
 112         }
 113     }
 114
 115     class Database {
 116
 117         Database() {
 118             String schema = getStringFromFile("demo-policy-schema-1.json");
 119             PolicyType policyType = new PolicyType("type2", schema);
 120             types.put("type2", policyType);
 121
 122             schema = getStringFromFile("demo-policy-schema-2.json");
 123             policyType = new PolicyType("type3", schema);
 124             types.put("type3", policyType);
 125
 126             schema = getStringFromFile("demo-policy-schema-3.json");
 127             policyType = new PolicyType("type4", schema);
 128             types.put("type4", policyType);
 129         }
 130
 131         private String getStringFromFile(String path) {
 132             try {
 133                 InputStream inputStream =
 134                     MethodHandles.lookup().lookupClass().getClassLoader().getResourceAsStream(path);
 135                 return new BufferedReader(new InputStreamReader(inputStream)).lines().collect(Collectors.joining("\n"));
 136             } catch (Exception e) {
 137                 logger.error("Cannot read file :" + path, e);
 138                 return "";
 139             }
 140         }
 141
 142         String normalize(String str) {
 143             return str.replace('\n', ' ');
 144         }
 145
 146         private String getTimeStampUTC() {
 147             return java.time.Instant.now().toString();
 148         }
 149
 150         void putInstance(String typeId, String instanceId, Object instanceData, String ric) {
 151             PolicyInfo i = ImmutablePolicyInfo.builder().json(instanceData).lastModified(getTimeStampUTC())
 152                 .id(instanceId).ric(ric).service("service").type(typeId).build();
 153             instances.put(instanceId, i);
 154         }
 155
 156         public void deleteInstance(String instanceId) {
 157             instances.remove(instanceId);
 158         }
 159
 160         Object getInstance(String id) throws RestClientException {
 161             PolicyInfo i = instances.get(id);
 162             if (i == null) {
 163                 throw new RestClientException("Type not found: " + id);
 164             }
 165             return i.json();
 166         }
 167
 168         public Collection<PolicyType> getTypes() {
 169             return types.values();
 170         }
 171
 172         public List<PolicyInfo> getInstances(Optional<String> typeId) {
 173             ArrayList<PolicyInfo> result = new ArrayList<>();
 174             for (PolicyInfo i : instances.values()) {
 175                 if (typeId.isPresent()) {
 176                     if (i.type().equals(typeId.get())) {
 177                         result.add(i);
 178                     }
 179
 180                 } else {
 181                     result.add(i);
 182                 }
 183             }
 184             return result;
 185         }
 186
 187         private Map<String, PolicyType> types = new HashMap<>();
 188         private Map<String, PolicyInfo> instances = new HashMap<>();
 189
 190     }
 191
 192 }