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 import java.io.BufferedReader;
  25 import java.io.InputStream;
  26 import java.io.InputStreamReader;
  27 import java.lang.invoke.MethodHandles;
  28 import java.util.ArrayList;
  29 import java.util.Collection;
  30 import java.util.HashMap;
  31 import java.util.List;
  32 import java.util.Map;
  33 import java.util.Optional;
  34 import java.util.Vector;
  35 import java.util.stream.Collectors;
  36 import org.oransc.portal.nonrtric.controlpanel.model.ImmutablePolicyInfo;
  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.slf4j.Logger;
  43 import org.slf4j.LoggerFactory;
  44 import org.springframework.boot.test.context.TestConfiguration;
  45 import org.springframework.context.annotation.Bean;
  46 import org.springframework.http.HttpStatus;
  47 import org.springframework.http.ResponseEntity;
  48 import org.springframework.web.client.RestClientException;
  49
  50 /**
  51  * Creates a mock implementation of the policy controller client API.
  52  */
  53 @TestConfiguration
  54 public class PolicyControllerMockConfiguration {
  55
  56     private static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
  57
  58     private static com.google.gson.Gson gson = new GsonBuilder() //
  59         .serializeNulls() //
  60         .create(); //
  61
  62     @Bean
  63     public PolicyAgentApi policyAgentApi() {
  64         MockPolicyAgentApi apiClient = new MockPolicyAgentApi();
  65         return apiClient;
  66     }
  67
  68     class MockPolicyAgentApi implements PolicyAgentApi {
  69         private final Database database = new Database();
  70
  71         @Override
  72         public ResponseEntity<Object> getPolicyInstance(String id) {
  73             return new ResponseEntity<>(database.getInstance(id), HttpStatus.OK);
  74         }
  75
  76         @Override
  77         public ResponseEntity<String> putPolicy(String policyTypeIdString, String policyInstanceId, Object json,
  78             String ric) {
  79             database.putInstance(policyTypeIdString, policyInstanceId, json, ric);
  80             return new ResponseEntity<>(HttpStatus.OK);
  81         }
  82
  83         @Override
  84         public ResponseEntity<String> deletePolicy(String policyInstanceId) {
  85             database.deleteInstance(policyInstanceId);
  86             return new ResponseEntity<>(HttpStatus.OK);
  87         }
  88
  89         @Override
  90         public ResponseEntity<String> getAllPolicyTypes() {
  91             PolicyTypes result = new PolicyTypes();
  92             result.addAll(database.getTypes());
  93             return new ResponseEntity<>(gson.toJson(result), HttpStatus.OK);
  94         }
  95
  96         @Override
  97         public ResponseEntity<String> getPolicyInstancesForType(String type) {
  98             PolicyInstances result = new PolicyInstances();
  99             List<PolicyInfo> inst = database.getInstances(Optional.of(type));
 100             result.addAll(inst);
 101             return new ResponseEntity<>(gson.toJson(result), HttpStatus.OK);
 102         }
 103
 104         @Override
 105         public ResponseEntity<String> getRicsSupportingType(String typeName) {
 106             Vector<String> res = new Vector<>();
 107             res.add("ric_1");
 108             res.add("ric_2");
 109             res.add("ric_3");
 110             return new ResponseEntity<>(gson.toJson(res), HttpStatus.OK);
 111         }
 112     }
 113
 114     class Database {
 115
 116         Database() {
 117             PolicyType policyType = new PolicyType("", "{}");
 118             types.put("", policyType);
 119
 120             String schema = getStringFromFile("demo-policy-schema-1.json");
 121             policyType = new PolicyType("type2", schema);
 122             types.put("type2", policyType);
 123
 124             schema = getStringFromFile("demo-policy-schema-2.json");
 125             policyType = new PolicyType("type3", schema);
 126             types.put("type3", policyType);
 127
 128             schema = getStringFromFile("demo-policy-schema-3.json");
 129             policyType = new PolicyType("type4", schema);
 130             types.put("type4", policyType);
 131
 132             putInstance("", "123", "{\"data\":\"data\"}", "ric_1");
 133         }
 134
 135         private String getStringFromFile(String path) {
 136             try {
 137                 InputStream inputStream =
 138                     MethodHandles.lookup().lookupClass().getClassLoader().getResourceAsStream(path);
 139                 return new BufferedReader(new InputStreamReader(inputStream)).lines().collect(Collectors.joining("\n"));
 140             } catch (Exception e) {
 141                 logger.error("Cannot read file :" + path, e);
 142                 return "";
 143             }
 144         }
 145
 146         String normalize(String str) {
 147             return str.replace('\n', ' ');
 148         }
 149
 150         private String getTimeStampUTC() {
 151             return java.time.Instant.now().toString();
 152         }
 153
 154         void putInstance(String typeId, String instanceId, Object instanceData, String ric) {
 155             PolicyInfo i = ImmutablePolicyInfo.builder().json(instanceData).lastModified(getTimeStampUTC())
 156                 .id(instanceId).ric(ric).service("service").type(typeId).build();
 157             instances.put(instanceId, i);
 158         }
 159
 160         public void deleteInstance(String instanceId) {
 161             instances.remove(instanceId);
 162         }
 163
 164         Object getInstance(String id) throws RestClientException {
 165             PolicyInfo i = instances.get(id);
 166             if (i == null) {
 167                 throw new RestClientException("Type not found: " + id);
 168             }
 169             return i.json();
 170         }
 171
 172         public Collection<PolicyType> getTypes() {
 173             return types.values();
 174         }
 175
 176         public List<PolicyInfo> getInstances(Optional<String> typeId) {
 177             ArrayList<PolicyInfo> result = new ArrayList<>();
 178             for (PolicyInfo i : instances.values()) {
 179                 if (typeId.isPresent()) {
 180                     if (i.type().equals(typeId.get())) {
 181                         result.add(i);
 182                     }
 183
 184                 } else {
 185                     result.add(i);
 186                 }
 187             }
 188             return result;
 189         }
 190
 191         private Map<String, PolicyType> types = new HashMap<>();
 192         private Map<String, PolicyInfo> instances = new HashMap<>();
 193
 194     }
 195
 196 }