Implemented policy get-status

[nonrtric.git] / policy-agent / src / main / java / org / oransc / policyagent / clients / SdncOscA1Client.java

diff --git a/policy-agent/src/main/java/org/oransc/policyagent/clients/SdncOscA1Client.java b/policy-agent/src/main/java/org/oransc/policyagent/clients/SdncOscA1Client.java
index 4000b36..06259c7 100644 (file)
--- a/policy-agent/src/main/java/org/oransc/policyagent/clients/SdncOscA1Client.java
+++ b/policy-agent/src/main/java/org/oransc/policyagent/clients/SdncOscA1Client.java
@@ -2,7 +2,7 @@
  * ========================LICENSE_START=================================
  * O-RAN-SC
  * %%
- * Copyright (C) 2019 Nordix Foundation
+ * Copyright (C) 2020 Nordix Foundation
  * %%
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,16 +20,9 @@
 
 package org.oransc.policyagent.clients;
 
-import com.google.gson.FieldNamingPolicy;
-import com.google.gson.Gson;
-import com.google.gson.GsonBuilder;
 import java.lang.invoke.MethodHandles;
-import java.util.ArrayList;
 import java.util.List;
 
-import org.json.JSONArray;
-import org.json.JSONException;
-import org.json.JSONObject;
 import org.oransc.policyagent.configuration.RicConfig;
 import org.oransc.policyagent.repository.Policy;
 import org.slf4j.Logger;
@@ -48,10 +41,6 @@ public class SdncOscA1Client implements A1Client {
     private final RicConfig ricConfig;
     private final AsyncRestClient restClient;
 
-    private static Gson gson = new GsonBuilder() //
-        .setFieldNamingPolicy(FieldNamingPolicy.LOWER_CASE_WITH_DASHES) //
-        .create(); //
-
     public SdncOscA1Client(RicConfig ricConfig, String baseUrl, String username, String password) {
         this(ricConfig, username, password, new AsyncRestClient(baseUrl + "/restconf/operations"));
         if (logger.isDebugEnabled()) {
@@ -71,29 +60,21 @@ public class SdncOscA1Client implements A1Client {
         SdncOscAdapterInput inputParams = ImmutableSdncOscAdapterInput.builder() //
             .nearRtRicUrl(ricConfig.baseUrl()) //
             .build();
-        String inputJsonString = createInputJsonString(inputParams);
+        String inputJsonString = JsonHelper.createInputJsonString(inputParams);
         logger.debug("POST getPolicyTypeIdentities inputJsonString = {}", inputJsonString);
 
         return restClient
             .postWithAuthHeader(URL_PREFIX + "getPolicyTypeIdentities", inputJsonString, a1ControllerUsername,
                 a1ControllerPassword) //
-            .flatMap(response -> getValueFromResponse(response, "policy-type-id-list")) //
-            .flatMap(this::parseJsonArrayOfString);
+            .flatMap(response -> JsonHelper.getValueFromResponse(response, "policy-type-id-list")) //
+            .flatMapMany(JsonHelper::parseJsonArrayOfString) //
+            .collectList();
     }
 
     @Override
     public Mono<List<String>> getPolicyIdentities() {
-        SdncOscAdapterInput inputParams = ImmutableSdncOscAdapterInput.builder() //
-            .nearRtRicUrl(ricConfig.baseUrl()) //
-            .build();
-        String inputJsonString = createInputJsonString(inputParams);
-        logger.debug("POST getPolicyIdentities inputJsonString = {}", inputJsonString);
-
-        return restClient
-            .postWithAuthHeader(URL_PREFIX + "getPolicyIdentities", inputJsonString, a1ControllerUsername,
-                a1ControllerPassword) //
-            .flatMap(response -> getValueFromResponse(response, "policy-id-list")) //
-            .flatMap(this::parseJsonArrayOfString);
+        return getPolicyIds() //
+            .collectList();
     }
 
     @Override
@@ -102,14 +83,14 @@ public class SdncOscA1Client implements A1Client {
             .nearRtRicUrl(ricConfig.baseUrl()) //
             .policyTypeId(policyTypeId) //
             .build();
-        String inputJsonString = createInputJsonString(inputParams);
+        String inputJsonString = JsonHelper.createInputJsonString(inputParams);
         logger.debug("POST getPolicyType inputJsonString = {}", inputJsonString);
 
         return restClient
             .postWithAuthHeader(URL_PREFIX + "getPolicyType", inputJsonString, a1ControllerUsername,
                 a1ControllerPassword) //
-            .flatMap(response -> getValueFromResponse(response, "policy-type")) //
-            .flatMap(this::extractPolicySchema);
+            .flatMap(response -> JsonHelper.getValueFromResponse(response, "policy-type")) //
+            .flatMap(JsonHelper::extractPolicySchema);
     }
 
     @Override
@@ -120,13 +101,13 @@ public class SdncOscA1Client implements A1Client {
             .policyId(policy.id()) //
             .policy(policy.json()) //
             .build();
-        String inputJsonString = createInputJsonString(inputParams);
+        String inputJsonString = JsonHelper.createInputJsonString(inputParams);
         logger.debug("POST putPolicy inputJsonString = {}", inputJsonString);
 
         return restClient
             .postWithAuthHeader(URL_PREFIX + "putPolicy", inputJsonString, a1ControllerUsername, a1ControllerPassword)
-            .flatMap(response -> getValueFromResponse(response, "returned-policy")) //
-            .flatMap(this::validateJson);
+            .flatMap(response -> JsonHelper.getValueFromResponse(response, "returned-policy")) //
+            .flatMap(JsonHelper::validateJson);
     }
 
     @Override
@@ -136,9 +117,8 @@ public class SdncOscA1Client implements A1Client {
 
     @Override
     public Flux<String> deleteAllPolicies() {
-        return getPolicyIdentities() //
-            .flatMapMany(policyIds -> Flux.fromIterable(policyIds)) // )
-            .flatMap(policyId -> deletePolicyById(policyId)); //
+        return getPolicyIds() //
+            .flatMap(this::deletePolicyById); //
     }
 
     @Override
@@ -149,59 +129,31 @@ public class SdncOscA1Client implements A1Client {
 
     @Override
     public Mono<String> getPolicyStatus(Policy policy) {
-        return Mono.error(new Exception("Status not implemented in the SDNC controller"));
-    }
-
-    private Mono<String> getValueFromResponse(String response, String key) {
-        logger.debug("A1 client: response = {}", response);
-        try {
-            JSONObject outputJson = new JSONObject(response);
-            JSONObject responseParams = outputJson.getJSONObject("output");
-            if (!responseParams.has(key)) {
-                return Mono.just("");
-            }
-            String value = responseParams.get(key).toString();
-            return Mono.just(value);
-        } catch (JSONException ex) { // invalid json
-            return Mono.error(ex);
-        }
-    }
+        SdncOscAdapterInput inputParams = ImmutableSdncOscAdapterInput.builder() //
+            .nearRtRicUrl(ricConfig.baseUrl()) //
+            .policyId(policy.id()) //
+            .build();
+        String inputJsonString = JsonHelper.createInputJsonString(inputParams);
+        logger.debug("POST getPolicyStatus inputJsonString = {}", inputJsonString);
 
-    private Mono<List<String>> parseJsonArrayOfString(String inputString) {
-        try {
-            List<String> arrayList = new ArrayList<>();
-            if (inputString.isEmpty()) {
-                return Mono.just(arrayList);
-            }
-            JSONArray jsonArray = new JSONArray(inputString);
-            for (int i = 0; i < jsonArray.length(); i++) {
-                arrayList.add(jsonArray.getString(i));
-            }
-            logger.debug("A1 client: received list = {}", arrayList);
-            return Mono.just(arrayList);
-        } catch (JSONException ex) { // invalid json
-            return Mono.error(ex);
-        }
+        return restClient
+            .postWithAuthHeader(URL_PREFIX + "getPolicyStatus", inputJsonString, a1ControllerUsername,
+                a1ControllerPassword) //
+            .flatMap(response -> JsonHelper.getValueFromResponse(response, "policy-status"));
     }
 
-    private Mono<String> extractPolicySchema(String inputString) {
-        try {
-            JSONObject jsonObject = new JSONObject(inputString);
-            JSONObject schemaObject = jsonObject.getJSONObject("policySchema");
-            String schemaString = schemaObject.toString();
-            return Mono.just(schemaString);
-        } catch (JSONException ex) { // invalid json
-            return Mono.error(ex);
-        }
-    }
+    private Flux<String> getPolicyIds() {
+        SdncOscAdapterInput inputParams = ImmutableSdncOscAdapterInput.builder() //
+            .nearRtRicUrl(ricConfig.baseUrl()) //
+            .build();
+        String inputJsonString = JsonHelper.createInputJsonString(inputParams);
+        logger.debug("POST getPolicyIdentities inputJsonString = {}", inputJsonString);
 
-    private Mono<String> validateJson(String inputString) {
-        try {
-            new JSONObject(inputString);
-            return Mono.just(inputString);
-        } catch (JSONException ex) { // invalid json
-            return Mono.error(ex);
-        }
+        return restClient
+            .postWithAuthHeader(URL_PREFIX + "getPolicyIdentities", inputJsonString, a1ControllerUsername,
+                a1ControllerPassword) //
+            .flatMap(response -> JsonHelper.getValueFromResponse(response, "policy-id-list")) //
+            .flatMapMany(JsonHelper::parseJsonArrayOfString);
     }
 
     private Mono<String> deletePolicyById(String policyId) {
@@ -210,16 +162,10 @@ public class SdncOscA1Client implements A1Client {
             .policyId(policyId) //
             .build();
 
-        String inputJsonString = createInputJsonString(inputParams);
+        String inputJsonString = JsonHelper.createInputJsonString(inputParams);
         logger.debug("POST deletePolicy inputJsonString = {}", inputJsonString);
 
         return restClient.postWithAuthHeader(URL_PREFIX + "deletePolicy", inputJsonString, a1ControllerUsername,
             a1ControllerPassword);
     }
-
-    private String createInputJsonString(SdncOscAdapterInput params) {
-        JSONObject inputJson = new JSONObject();
-        inputJson.put("input", new JSONObject(gson.toJson(params)));
-        return inputJson.toString();
-    }
 }