Update to support PMS_v2
[portal/nonrtric-controlpanel.git] / webapp-backend / src / main / java / org / oransc / portal / nonrtric / controlpanel / policyagentapi / PolicyAgentApiImpl.java
index c084443..f8b7c3e 100644 (file)
@@ -32,147 +32,160 @@ import java.lang.reflect.Type;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.List;
-import java.util.Map;
 
 import org.immutables.gson.Gson;
 import org.immutables.value.Value;
 import org.oransc.portal.nonrtric.controlpanel.model.ImmutablePolicyInfo;
 import org.oransc.portal.nonrtric.controlpanel.model.PolicyInfo;
-import org.oransc.portal.nonrtric.controlpanel.model.PolicyInstances;
 import org.oransc.portal.nonrtric.controlpanel.model.PolicyType;
 import org.oransc.portal.nonrtric.controlpanel.model.PolicyTypes;
+import org.oransc.portal.nonrtric.controlpanel.util.AsyncRestClient;
+import org.oransc.portal.nonrtric.controlpanel.util.ErrorResponseHandler;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.http.HttpEntity;
-import org.springframework.http.HttpHeaders;
 import org.springframework.http.HttpStatus;
-import org.springframework.http.MediaType;
 import org.springframework.http.ResponseEntity;
 import org.springframework.stereotype.Component;
-import org.springframework.web.client.RestTemplate;
 
 @Component("PolicyAgentApi")
 public class PolicyAgentApiImpl implements PolicyAgentApi {
     private static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
 
-    RestTemplate restTemplate;
+    private final AsyncRestClient webClient;
 
     private static com.google.gson.Gson gson = new GsonBuilder() //
         .serializeNulls() //
         .create(); //
 
-    private final String urlPrefix;
-
     @Autowired
     public PolicyAgentApiImpl(
         @org.springframework.beans.factory.annotation.Value("${policycontroller.url.prefix}") final String urlPrefix) {
-        this(urlPrefix, new RestTemplate());
+        this(new AsyncRestClient(urlPrefix));
         logger.debug("ctor prefix '{}'", urlPrefix);
     }
 
-    public PolicyAgentApiImpl(String urlPrefix, RestTemplate restTemplate) {
-        this.urlPrefix = urlPrefix;
-        this.restTemplate = restTemplate;
-    }
-
-    private String baseUrl() {
-        return urlPrefix;
-    }
-
-    @Value.Immutable
-    @Gson.TypeAdapters
-    interface PolicyTypeInfo {
-
-        public String name();
-
-        public String schema();
+    public PolicyAgentApiImpl(AsyncRestClient webClient) {
+        this.webClient = webClient;
     }
 
     @Override
     public ResponseEntity<String> getAllPolicyTypes() {
         try {
-            String url = baseUrl() + "/policy_schemas";
-            ResponseEntity<String> rsp = this.restTemplate.getForEntity(url, String.class);
+            final String url = "/v2/policy-types";
+            ResponseEntity<String> rsp = webClient.getForEntity(url).block();
             if (!rsp.getStatusCode().is2xxSuccessful()) {
                 return rsp;
             }
 
             PolicyTypes result = new PolicyTypes();
+            JsonArray policyTypeIds = JsonParser.parseString(rsp.getBody()).getAsJsonObject() //
+                .get("policytype_ids") //
+                .getAsJsonArray(); //
+
+            for (JsonElement policyTypeId : policyTypeIds) {
+
+                String typeId = policyTypeId.getAsString();
 
-            JsonArray schemas = JsonParser.parseString(rsp.getBody()).getAsJsonArray();
-            for (JsonElement schema : schemas) {
-                JsonObject schemaObj = schema.getAsJsonObject();
-                String title = schemaObj.get("title").getAsString();
-                String schemaAsStr = schemaObj.toString();
-                PolicyType pt = new PolicyType(title, schemaAsStr);
+                JsonObject schemaObj = getIndividualPolicySchema(typeId);
+                PolicyType pt = new PolicyType(typeId, schemaObj.toString());
                 result.add(pt);
             }
             return new ResponseEntity<>(gson.toJson(result), rsp.getStatusCode());
         } catch (Exception e) {
-            return new ResponseEntity<>(e.getMessage(), HttpStatus.INTERNAL_SERVER_ERROR);
+            return ErrorResponseHandler.handleException(e);
         }
     }
 
-    @Override
-    public ResponseEntity<String> getPolicyInstancesForType(String type) {
-        String url = baseUrl() + "/policies?type={type}";
-        Map<String, ?> uriVariables = Map.of("type", type);
-        ResponseEntity<String> rsp = this.restTemplate.getForEntity(url, String.class, uriVariables);
-        if (!rsp.getStatusCode().is2xxSuccessful()) {
-            return rsp;
+    public JsonObject getIndividualPolicySchema(String id) {
+        try {
+            final String url = "/v2/policy-types/" + id;
+            ResponseEntity<String> rsp = webClient.getForEntity(url).block();
+            if (!rsp.getStatusCode().is2xxSuccessful()) {
+                return null;
+            }
+
+            JsonObject policy_schema = JsonParser.parseString(rsp.getBody()).getAsJsonObject() //
+                .get("policy_schema") //
+                .getAsJsonObject(); //
+
+            return policy_schema;
+        } catch (Exception e) {
+            return null;
         }
+    }
 
+    @Override
+    public ResponseEntity<String> getPolicyInstancesForType(String type) {
         try {
-            Type listType = new TypeToken<List<ImmutablePolicyInfo>>() {}.getType();
-            List<PolicyInfo> rspParsed = gson.fromJson(rsp.getBody(), listType);
-            PolicyInstances result = new PolicyInstances();
-            for (PolicyInfo p : rspParsed) {
-                result.add(p);
+            String url = "/v2/policies?policytype_id=" + type;
+            ResponseEntity<String> rsp = webClient.getForEntity(url).block();
+            if (!rsp.getStatusCode().is2xxSuccessful()) {
+                return rsp;
             }
-            return new ResponseEntity<>(gson.toJson(result), rsp.getStatusCode());
+            JsonArray policyInstances = JsonParser.parseString(rsp.getBody()).getAsJsonObject() //
+                .get("policy_ids") //
+                .getAsJsonArray(); //
+
+            Type listType = new TypeToken<List<ImmutablePolicyInfo>>() {}.getType();
+            List<PolicyInfo> rspParsed = gson.fromJson(policyInstances, listType);
+
+            return new ResponseEntity<>(gson.toJson(rspParsed), rsp.getStatusCode());
         } catch (Exception e) {
-            return new ResponseEntity<>(e.getMessage(), HttpStatus.INTERNAL_SERVER_ERROR);
+            return ErrorResponseHandler.handleException(e);
         }
     }
 
     @Override
     public ResponseEntity<Object> getPolicyInstance(String id) {
-        String url = baseUrl() + "/policy?id={id}";
-        Map<String, ?> uriVariables = Map.of("id", id);
+        try {
+            String url = "/v2/policies/" + id;
+            ResponseEntity<String> rsp = webClient.getForEntity(url).block();
+            JsonObject obj = JsonParser.parseString(rsp.getBody()).getAsJsonObject();
+            String str = obj.toString();
+            return new ResponseEntity<>(str, rsp.getStatusCode());
+        } catch (Exception e) {
+            ResponseEntity<String> rsp = ErrorResponseHandler.handleException(e);
+            return new ResponseEntity<>(rsp.getBody(), rsp.getStatusCode());
+        }
+    }
 
-        return this.restTemplate.getForEntity(url, Object.class, uriVariables);
+    private String getTimeStampUTC() {
+        return java.time.Instant.now().toString();
     }
 
     @Override
     public ResponseEntity<String> putPolicy(String policyTypeIdString, String policyInstanceId, Object json,
         String ric) {
-        String url = baseUrl() + "/policy?type={type}&id={id}&ric={ric}&service={service}";
-        Map<String, ?> uriVariables = Map.of( //
-            "type", policyTypeIdString, //
-            "id", policyInstanceId, //
-            "ric", ric, //
-            "service", "controlpanel");
+        String url = "/v2/policies/";
+
+        PolicyInfo i = ImmutablePolicyInfo.builder() //
+            .id(policyInstanceId) //
+            .type(policyTypeIdString) //
+            .ric(ric) //
+            .json(json) //
+            .service("controlpanel") //
+            .lastModified(getTimeStampUTC()) //
+            .build(); //
 
         try {
-            this.restTemplate.put(url, createJsonHttpEntity(json), uriVariables);
+            String jsonStr = gson.toJson(i, PolicyInfo.class);
+            webClient.putForEntity(url, jsonStr).block();
             return new ResponseEntity<>(HttpStatus.OK);
         } catch (Exception e) {
-            return new ResponseEntity<>(e.getMessage(), HttpStatus.INTERNAL_SERVER_ERROR);
+            return ErrorResponseHandler.handleException(e);
         }
     }
 
     @Override
     public ResponseEntity<String> deletePolicy(String policyInstanceId) {
-        String url = baseUrl() + "/policy?id={id}";
-        Map<String, ?> uriVariables = Map.of("id", policyInstanceId);
+        String url = "/v2/policies/" + policyInstanceId;
         try {
-            this.restTemplate.delete(url, uriVariables);
+            webClient.deleteForEntity(url).block();
             return new ResponseEntity<>(HttpStatus.OK);
         } catch (Exception e) {
-            return new ResponseEntity<>(e.getMessage(), HttpStatus.NOT_FOUND);
+            return ErrorResponseHandler.handleException(e);
         }
-
     }
 
     @Value.Immutable
@@ -187,27 +200,27 @@ public class PolicyAgentApiImpl implements PolicyAgentApi {
 
     @Override
     public ResponseEntity<String> getRicsSupportingType(String typeName) {
-        String url = baseUrl() + "/rics?policyType={typeName}";
-        Map<String, ?> uriVariables = Map.of("typeName", typeName);
-        String rsp = this.restTemplate.getForObject(url, String.class, uriVariables);
-
         try {
+            String url = "/v2/rics?policytype_id=" + typeName;
+            ResponseEntity<String> rsp = webClient.getForEntity(url).block();
+            if (!rsp.getStatusCode().is2xxSuccessful()) {
+                return rsp;
+            }
+
+            JsonArray rics = JsonParser.parseString(rsp.getBody()).getAsJsonObject() //
+                .get("rics") //
+                .getAsJsonArray(); //
+
             Type listType = new TypeToken<List<ImmutableRicInfo>>() {}.getType();
-            List<RicInfo> rspParsed = gson.fromJson(rsp, listType);
+            List<RicInfo> rspParsed = gson.fromJson(rics, listType);
             Collection<String> result = new ArrayList<>(rspParsed.size());
             for (RicInfo ric : rspParsed) {
                 result.add(ric.ricName());
             }
-            return new ResponseEntity<>(gson.toJson(result), HttpStatus.OK);
+            String json = gson.toJson(result);
+            return new ResponseEntity<>(json, HttpStatus.OK);
         } catch (Exception e) {
-            return new ResponseEntity<>(e.getMessage(), HttpStatus.INTERNAL_SERVER_ERROR);
+            return ErrorResponseHandler.handleException(e);
         }
     }
-
-    private HttpEntity<Object> createJsonHttpEntity(Object content) {
-        HttpHeaders headers = new HttpHeaders();
-        headers.setContentType(MediaType.APPLICATION_JSON);
-        return new HttpEntity<>(content, headers);
-    }
-
 }