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
  38 import org.oransc.portal.nonrtric.controlpanel.model.ImmutablePolicyInfo;
  39 import org.oransc.portal.nonrtric.controlpanel.model.PolicyInfo;
  40 import org.oransc.portal.nonrtric.controlpanel.model.PolicyInstances;
  41 import org.oransc.portal.nonrtric.controlpanel.model.PolicyType;
  42 import org.oransc.portal.nonrtric.controlpanel.model.PolicyTypes;
  43 import org.oransc.portal.nonrtric.controlpanel.policyagentapi.PolicyAgentApi;
  44 import org.slf4j.Logger;
  45 import org.slf4j.LoggerFactory;
  46 import org.springframework.boot.test.context.TestConfiguration;
  47 import org.springframework.context.annotation.Bean;
  48 import org.springframework.http.HttpStatus;
  49 import org.springframework.http.ResponseEntity;
  50 import org.springframework.web.client.RestClientException;
  51
  52 /**
  53  * Creates a mock implementation of the policy controller client API.
  54  */
  55 @TestConfiguration
  56 public class PolicyControllerMockConfiguration {
  57
  58     private static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
  59
  60     private static com.google.gson.Gson gson = new GsonBuilder() //
  61         .serializeNulls() //
  62         .create(); //
  63
  64     @Bean
  65     public PolicyAgentApi policyAgentApi() {
  66         MockPolicyAgentApi apiClient = new MockPolicyAgentApi();
  67         return apiClient;
  68     }
  69
  70     class MockPolicyAgentApi implements PolicyAgentApi {
  71         private final Database database = new Database();
  72
  73         @Override
  74         public ResponseEntity<Object> getPolicyInstance(String id) {
  75             return new ResponseEntity<>(database.getInstance(id), HttpStatus.OK);
  76         }
  77
  78         @Override
  79         public ResponseEntity<String> putPolicy(String policyTypeIdString, String policyInstanceId, Object json,
  80             String ric) {
  81             database.putInstance(policyTypeIdString, policyInstanceId, json, ric);
  82             return new ResponseEntity<>("Policy was put successfully", HttpStatus.OK);
  83         }
  84
  85         @Override
  86         public ResponseEntity<String> deletePolicy(String policyInstanceId) {
  87             database.deleteInstance(policyInstanceId);
  88             return new ResponseEntity<>("Policy was deleted successfully", HttpStatus.NO_CONTENT);
  89         }
  90
  91         @Override
  92         public ResponseEntity<String> getAllPolicyTypes() {
  93             PolicyTypes result = new PolicyTypes();
  94             result.addAll(database.getTypes());
  95             return new ResponseEntity<>(gson.toJson(result), HttpStatus.OK);
  96         }
  97
  98         @Override
  99         public ResponseEntity<String> getPolicyInstancesForType(String type) {
 100             PolicyInstances result = new PolicyInstances();
 101             List<PolicyInfo> inst = database.getInstances(Optional.of(type));
 102             result.addAll(inst);
 103             return new ResponseEntity<>(gson.toJson(result), HttpStatus.OK);
 104         }
 105
 106         @Override
 107         public ResponseEntity<String> getRicsSupportingType(String typeName) {
 108             Vector<String> res = new Vector<>();
 109             res.add("ric_1");
 110             res.add("ric_2");
 111             res.add("ric_3");
 112             return new ResponseEntity<>(gson.toJson(res), HttpStatus.OK);
 113         }
 114     }
 115
 116     class Database {
 117
 118         Database() {
 119             String schema = getStringFromFile("demo-policy-schema-1.json");
 120             PolicyType policyType = new PolicyType("type2", schema);
 121             types.put("type2", policyType);
 122
 123             schema = getStringFromFile("demo-policy-schema-2.json");
 124             policyType = new PolicyType("type3", schema);
 125             types.put("type3", policyType);
 126
 127             schema = getStringFromFile("demo-policy-schema-3.json");
 128             policyType = new PolicyType("type4", schema);
 129             types.put("type4", policyType);
 130         }
 131
 132         private String getStringFromFile(String path) {
 133             try {
 134                 InputStream inputStream =
 135                     MethodHandles.lookup().lookupClass().getClassLoader().getResourceAsStream(path);
 136                 return new BufferedReader(new InputStreamReader(inputStream)).lines().collect(Collectors.joining("\n"));
 137             } catch (Exception e) {
 138                 logger.error("Cannot read file :" + path, e);
 139                 return "";
 140             }
 141         }
 142
 143         String normalize(String str) {
 144             return str.replace('\n', ' ');
 145         }
 146
 147         private String getTimeStampUTC() {
 148             return java.time.Instant.now().toString();
 149         }
 150
 151         void putInstance(String typeId, String instanceId, Object instanceData, String ric) {
 152             PolicyInfo i = ImmutablePolicyInfo.builder().json(instanceData).lastModified(getTimeStampUTC())
 153                 .id(instanceId).ric(ric).service("service").type(typeId).build();
 154             instances.put(instanceId, i);
 155         }
 156
 157         public void deleteInstance(String instanceId) {
 158             instances.remove(instanceId);
 159         }
 160
 161         Object getInstance(String id) throws RestClientException {
 162             PolicyInfo i = instances.get(id);
 163             if (i == null) {
 164                 throw new RestClientException("Type not found: " + id);
 165             }
 166             return i.json();
 167         }
 168
 169         public Collection<PolicyType> getTypes() {
 170             return types.values();
 171         }
 172
 173         public List<PolicyInfo> getInstances(Optional<String> typeId) {
 174             ArrayList<PolicyInfo> result = new ArrayList<>();
 175             for (PolicyInfo i : instances.values()) {
 176                 if (typeId.isPresent()) {
 177                     if (i.type().equals(typeId.get())) {
 178                         result.add(i);
 179                     }
 180
 181                 } else {
 182                     result.add(i);
 183                 }
 184             }
 185             return result;
 186         }
 187
 188         private Map<String, PolicyType> types = new HashMap<>();
 189         private Map<String, PolicyInfo> instances = new HashMap<>();
 190
 191     }
 192
 193 }