Add Policy adapter to communicate with Policy module

Add Policy adapter to communicate with Policy module

Issue-ID: USECASEUI-714

Signed-off-by: ChuanyuChen <chenchuanyu@huawei.com>
Change-Id: I26445e2c99ca9db960deb7a56166196444c39708

8 files changed, 428 insertions, 6 deletions

diff --git a/intentanalysis/src/main/java/org/onap/usecaseui/intentanalysis/adapters/aai/AAIService.java b/intentanalysis/src/main/java/org/onap/usecaseui/intentanalysis/adapters/aai/AAIService.java
new file mode 100644
index 0000000..d688c16
--- /dev/null
+++ b/intentanalysis/src/main/java/org/onap/usecaseui/intentanalysis/adapters/aai/AAIService.java
@@ -0,0 +1,18 @@
+/*
+ * Copyright 2022 Huawei Technologies Co., Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onap.usecaseui.intentanalysis.adapters.aai;
+
+public interface AAIService { }
diff --git a/intentanalysis/src/main/java/org/onap/usecaseui/intentanalysis/adapters/policy/PolicyService.java b/intentanalysis/src/main/java/org/onap/usecaseui/intentanalysis/adapters/policy/PolicyService.java
new file mode 100644
index 0000000..4511ed0
--- /dev/null
+++ b/intentanalysis/src/main/java/org/onap/usecaseui/intentanalysis/adapters/policy/PolicyService.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2022 Huawei Technologies Co., Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onap.usecaseui.intentanalysis.adapters.policy;
+
+public interface PolicyService {
+    /**
+     * Add modify CLL bandwidth policy
+     * @return
+     */
+    boolean createAndDeployModifyCLLPolicy();
+
+    /**
+     * Remove modify CLL bandwidth policy
+     * @return
+     */
+    boolean undeployAndRemoveModifyCLLPolicy();
+
+    /**
+     * Update the intent configuration policy. Configuration policy is used to control the monitor of the CLL service bandwidth
+     * When closedLoopStatus set as true, DCAE will get the configuration and monitor the bandwidth of the specified CLL.
+     * When closedLoopStatus set as false, DCAE will stop monitor the bandwidth of the specified CLL.
+     * @param cllId The CLL service instance
+     * @param originalBW original bandwidth of the CLL service, it is used for DCAE to compare the CLL current bandwidth.
+     * @param closedLoopStatus  True: start  monitor, False: stop monitor
+     * @return
+     */
+    boolean updateIntentConfigPolicy(String cllId, String originalBW, boolean closedLoopStatus);
+
+}
diff --git a/intentanalysis/src/main/java/org/onap/usecaseui/intentanalysis/adapters/policy/apicall/PolicyAPICall.java b/intentanalysis/src/main/java/org/onap/usecaseui/intentanalysis/adapters/policy/apicall/PolicyAPICall.java
new file mode 100644
index 0000000..897aed2
--- /dev/null
+++ b/intentanalysis/src/main/java/org/onap/usecaseui/intentanalysis/adapters/policy/apicall/PolicyAPICall.java
@@ -0,0 +1,77 @@
+/*
+ * Copyright 2022 Huawei Technologies Co., Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.onap.usecaseui.intentanalysis.adapters.policy.apicall;
+
+import okhttp3.RequestBody;
+import okhttp3.ResponseBody;
+import retrofit2.Call;
+import retrofit2.http.Body;
+import retrofit2.http.DELETE;
+import retrofit2.http.GET;
+import retrofit2.http.Headers;
+import retrofit2.http.POST;
+import retrofit2.http.Path;
+
+public interface PolicyAPICall {
+
+    @Headers({
+        "Authorization: Basic cG9saWN5YWRtaW46emIhWHp0RzM0", "Accept: application/json",
+        "Content-Type: application/json"
+    })
+    @POST("/policy/api/v1/policytypes")
+    Call<ResponseBody> createPolicyType(@Body RequestBody body);
+
+    @Headers({
+        "Authorization: Basic cG9saWN5YWRtaW46emIhWHp0RzM0", "Accept: application/json",
+        "Content-Type: application/json"
+    })
+    @POST("/policy/api/v1/policytypes/{policyType}/versions/{policyTypeVersion}/policies")
+    Call<ResponseBody> createPolicy(@Path("policyType") String policyType,
+        @Path("policyTypeVersion") String policyTypeVersion, @Body RequestBody body);
+
+    @Headers({
+        "Authorization: Basic cG9saWN5YWRtaW46emIhWHp0RzM0", "Accept: application/json",
+        "Content-Type: application/json"
+    })
+    @POST("/policy/pap/v1/pdps/policies")
+    Call<ResponseBody> deployPolicy(@Body RequestBody body);
+
+    @Headers({
+        "Authorization: Basic cG9saWN5YWRtaW46emIhWHp0RzM0", "Accept: application/json",
+        "Content-Type: application/json"
+    })
+    @DELETE("/policy/pap/v1/pdps/policies/{policyName}")
+    Call<ResponseBody> undeployPolicy(@Path("policyName") String policyName);
+
+    @Headers({
+        "Authorization: Basic cG9saWN5YWRtaW46emIhWHp0RzM0", "Accept: application/json",
+        "Content-Type: application/json"
+    })
+    @DELETE("/policy/api/v1/policies/{policyName}/versions/{policyVersion}")
+    Call<ResponseBody> removePolicy(@Path("policyName") String policyName, @Path("policyVersion") String policyVersion);
+
+    @Headers({
+        "Authorization: Basic cG9saWN5YWRtaW46emIhWHp0RzM0", "Accept: application/json",
+        "Content-Type: application/json"
+    })
+    @GET(
+        "https://192.168.100.2:30283/policy/api/v1/policytypes/{policyType}/versions/{policyTypeVersion}/policies/{policyName}/versions/{policyVersiion}")
+    Call<ResponseBody> getPolicy(@Path("policyType") String policyType,
+        @Path("policyTypeVersion") String policyTypeVersion, @Path("policyName") String policyName,
+        @Path("policyVersion") String policyVersion);
+
+}
diff --git a/intentanalysis/src/main/java/org/onap/usecaseui/intentanalysis/adapters/policy/impl/IntentConfigPolicyConstants.java b/intentanalysis/src/main/java/org/onap/usecaseui/intentanalysis/adapters/policy/impl/IntentConfigPolicyConstants.java
new file mode 100644
index 0000000..4635d1c
--- /dev/null
+++ b/intentanalysis/src/main/java/org/onap/usecaseui/intentanalysis/adapters/policy/impl/IntentConfigPolicyConstants.java
@@ -0,0 +1,28 @@
+/*
+ * Copyright 2022 Huawei Technologies Co., Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onap.usecaseui.intentanalysis.adapters.policy.impl;
+
+public class IntentConfigPolicyConstants {
+
+    //In CLL IBN Use Case, slice micro-service does the analysis together with the slice Use Case.
+    public static final String policyType = "onap.policies.monitoring.docker.slicems.app";
+
+    public static final String policyTypeVersion = "1.0.0";
+
+    public static final String policyName = "onap.dcae.slicems.config";
+
+    public static final String policyVersion = "1.0.0";
+}
diff --git a/intentanalysis/src/main/java/org/onap/usecaseui/intentanalysis/adapters/policy/impl/ModifyCLLPolicyConstants.java b/intentanalysis/src/main/java/org/onap/usecaseui/intentanalysis/adapters/policy/impl/ModifyCLLPolicyConstants.java
new file mode 100644
index 0000000..b223361
--- /dev/null
+++ b/intentanalysis/src/main/java/org/onap/usecaseui/intentanalysis/adapters/policy/impl/ModifyCLLPolicyConstants.java
@@ -0,0 +1,27 @@
+/*
+ * Copyright 2022 Huawei Technologies Co., Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.onap.usecaseui.intentanalysis.adapters.policy.impl;
+
+public class ModifyCLLPolicyConstants {
+    public static final String policyType = "onap.policies.controlloop.operational.common.Drools";
+
+    public static final String policyTypeVersion = "1.0.0";
+
+    public static final String policyName = "operational.modifycll";
+
+    public static final String policyVersion = "1.0.0";
+}
diff --git a/intentanalysis/src/main/java/org/onap/usecaseui/intentanalysis/adapters/policy/impl/PolicyServiceImpl.java b/intentanalysis/src/main/java/org/onap/usecaseui/intentanalysis/adapters/policy/impl/PolicyServiceImpl.java
new file mode 100644
index 0000000..26b7add
--- /dev/null
+++ b/intentanalysis/src/main/java/org/onap/usecaseui/intentanalysis/adapters/policy/impl/PolicyServiceImpl.java
@@ -0,0 +1,205 @@
+/*
+ * Copyright 2022 Huawei Technologies Co., Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.onap.usecaseui.intentanalysis.adapters.policy.impl;
+
+import java.io.File;
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+import okhttp3.MediaType;
+import okhttp3.RequestBody;
+import okhttp3.ResponseBody;
+import org.apache.commons.io.FileUtils;
+import org.apache.ibatis.io.Resources;
+import org.onap.usecaseui.intentanalysis.adapters.policy.PolicyService;
+import org.onap.usecaseui.intentanalysis.adapters.policy.apicall.PolicyAPICall;
+import org.onap.usecaseui.intentanalysis.util.RestfulServices;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.stereotype.Service;
+import retrofit2.Response;
+
+@Service
+public class PolicyServiceImpl implements PolicyService {
+
+    private static final Logger logger = LoggerFactory.getLogger(PolicyServiceImpl.class);
+
+    private PolicyAPICall policyAPICall;
+
+    public PolicyServiceImpl() {
+        this.policyAPICall = RestfulServices.create(PolicyAPICall.class);
+    }
+
+    @Override
+    public boolean createAndDeployModifyCLLPolicy() {
+        try {
+            //Create policy
+            File policyFile = Resources.getResourceAsFile("intentPolicy/modifycll.json");
+            String policyBody = FileUtils.readFileToString(policyFile, StandardCharsets.UTF_8);
+            logger.info(String.format("Create policy, request body: %s", policyBody));
+            RequestBody policyReq = RequestBody.create(MediaType.parse("application/json"), policyBody.toString());
+            Response<ResponseBody> policyResponse = policyAPICall.createPolicy(ModifyCLLPolicyConstants.policyType,
+                ModifyCLLPolicyConstants.policyTypeVersion, policyReq).execute();
+            logger.info(
+                String.format("Create policy result, code: %d body: %s", policyResponse.code(), policyResponse.body()));
+            if (!policyResponse.isSuccessful()) {
+                logger.error("Create modify cll policy failed.");
+                return false;
+            }
+
+            //Deploy policy
+            File deployPolicyFile = Resources.getResourceAsFile("intentPolicy/deploy_modifycll.json");
+            String deployPolicyBody = FileUtils.readFileToString(deployPolicyFile, StandardCharsets.UTF_8);
+            logger.info(String.format("Deploy policy, request body: %s", deployPolicyBody));
+            RequestBody deployPolicyReq = RequestBody.create(MediaType.parse("application/json"),
+                deployPolicyBody.toString());
+            Response<ResponseBody> deployPolicyResponse = policyAPICall.deployPolicy(deployPolicyReq).execute();
+            logger.info(String.format("Deploy policy result, code: %d body: %s", deployPolicyResponse.code(),
+                deployPolicyResponse.body()));
+            if (!deployPolicyResponse.isSuccessful()) {
+                logger.error("Deploy modify cll policy failed.");
+                return false;
+            }
+
+        } catch (IOException e) {
+            logger.error("Exception in create and deploy modify cll policy.", e);
+            return false;
+        }
+        return true;
+    }
+
+    @Override
+    public boolean undeployAndRemoveModifyCLLPolicy() {
+        return undeployAndRemovePolicyIfExist(ModifyCLLPolicyConstants.policyType,
+            ModifyCLLPolicyConstants.policyTypeVersion, ModifyCLLPolicyConstants.policyName,
+            ModifyCLLPolicyConstants.policyVersion);
+    }
+
+    @Override
+    public boolean updateIntentConfigPolicy(String cllId, String originalBW, boolean closedLoopStatus) {
+        //the policy engine does not support update now. so we need to remove and recreate the policy now.
+        logger.info(String.format(
+            "Start to update the intent configuration policy, cllId: %s, originalBW： %s, closedLooopStatus：%b", cllId,
+            originalBW, closedLoopStatus));
+        //remove the configuration policy first
+        boolean res = undeployAndRemovePolicyIfExist(IntentConfigPolicyConstants.policyType,
+            IntentConfigPolicyConstants.policyTypeVersion, IntentConfigPolicyConstants.policyName,
+            IntentConfigPolicyConstants.policyVersion);
+        if (!res) {
+            logger.warn("Undeploy and remove the intent configuration policy failed.");
+        }
+        res = createAndDeployIntentConfigPolicy(cllId, originalBW, closedLoopStatus);
+        if (!res) {
+            logger.error("Create and deploy the intent configuration policy failed.");
+        }
+        logger.info(String.format("update intent configuration finished, result: %b", res));
+        return res;
+    }
+
+    /**
+     * Create and deploy the configuration policy
+     *
+     * @param cllId
+     * @param originalBW
+     * @param closedLoopStatus
+     * @return
+     */
+    public boolean createAndDeployIntentConfigPolicy(String cllId, String originalBW, boolean closedLoopStatus) {
+        try {
+            //Create policy type
+            File policyTypeFile = Resources.getResourceAsFile("intentPolicy/intent_configs_policy_type.json");
+            String policyTypeBody = FileUtils.readFileToString(policyTypeFile, StandardCharsets.UTF_8);
+            logger.info(String.format("Create policy type, request body: %s", policyTypeBody));
+            RequestBody policyTypeReq = RequestBody.create(MediaType.parse("application/json"),
+                policyTypeBody.toString());
+            Response<ResponseBody> response = policyAPICall.createPolicyType(policyTypeReq).execute();
+            logger.info(
+                String.format("Create policy type result, code: %d body: %s", response.code(), response.body()));
+            if (!response.isSuccessful()) {
+                logger.error("Create intent configuration policy type failed.");
+                return false;
+            }
+            //Create policy
+            File policyFile = Resources.getResourceAsFile("intentPolicy/intent_configs_policy.json");
+            String policyBodyTemplate = FileUtils.readFileToString(policyFile, StandardCharsets.UTF_8);
+            String policyBody = policyBodyTemplate.replace("${CLL_ID}", cllId)
+                .replace("${CLOSED_LOOP_STATUS}", String.valueOf(closedLoopStatus))
+                .replace("${ORIGINAL_BW}", originalBW);
+            logger.info(String.format("Create policy, request body: %s", policyBody));
+            RequestBody policyReq = RequestBody.create(MediaType.parse("application/json"), policyBody.toString());
+            Response<ResponseBody> policyResponse = policyAPICall.createPolicy(IntentConfigPolicyConstants.policyType,
+                IntentConfigPolicyConstants.policyTypeVersion, policyReq).execute();
+            logger.info(
+                String.format("Create policy result, code: %d body: %s", policyResponse.code(), policyResponse.body()));
+            if (!policyResponse.isSuccessful()) {
+                logger.error("Create intent configuration policy failed.");
+                return false;
+            }
+
+            //Deploy policy
+            File deployPolicyFile = Resources.getResourceAsFile("intentPolicy/deploy_intent_configs.json");
+            String deployPolicyBody = FileUtils.readFileToString(deployPolicyFile, StandardCharsets.UTF_8);
+            logger.info(String.format("Deploy policy, request body: %s", deployPolicyBody));
+            RequestBody deployPolicyReq = RequestBody.create(MediaType.parse("application/json"),
+                deployPolicyBody.toString());
+            Response<ResponseBody> deployPolicyResponse = policyAPICall.deployPolicy(deployPolicyReq).execute();
+            logger.info(String.format("Deploy policy result, code: %d body: %s", deployPolicyResponse.code(),
+                deployPolicyResponse.body()));
+            if (!deployPolicyResponse.isSuccessful()) {
+                logger.error("Deploy intent configuration policy failed.");
+                return false;
+            }
+
+        } catch (IOException e) {
+            logger.error("Exception in create and deploy intent config policy.", e);
+            return false;
+        }
+        return true;
+    }
+
+    /**
+     * undeploy and remove the configuration policy
+     *
+     * @return
+     */
+    private boolean undeployAndRemovePolicyIfExist(String policyType, String policyTypeVersion, String policyName,
+        String policyVersion) {
+        try {
+            //check if the policy exists
+            Response<ResponseBody> response = policyAPICall.getPolicy(policyType, policyTypeVersion, policyName,
+                policyVersion).execute();
+            logger.info(String.format("The policy query result, code: %d body: %s", response.code(), response.body()));
+            // remove the policy if exists.
+            if (response.isSuccessful()) {
+                logger.info("The policy exists, start to undeploy.");
+                Response<ResponseBody> undeployResponse = policyAPICall.undeployPolicy(policyName).execute();
+                logger.info(String.format("Undeploy policy result. code: %d body: %s", undeployResponse.code(),
+                    undeployResponse.body()));
+                logger.info("Start to remove the policy.");
+                Response<ResponseBody> removeResponse = policyAPICall.removePolicy(policyName, policyVersion).execute();
+                logger.info(String.format("Remove policy result. code: %d body: %s", removeResponse.code(),
+                    removeResponse.body()));
+                return true;
+            }
+            return true;
+
+        } catch (IOException e) {
+            logger.error("Exception in undeploy and remove policy", e);
+            return false;
+        }
+
+    }
+}
diff --git a/intentanalysis/src/main/java/org/onap/usecaseui/intentanalysis/adapters/so/SOService.java b/intentanalysis/src/main/java/org/onap/usecaseui/intentanalysis/adapters/so/SOService.java
new file mode 100644
index 0000000..92ef65c
--- /dev/null
+++ b/intentanalysis/src/main/java/org/onap/usecaseui/intentanalysis/adapters/so/SOService.java
@@ -0,0 +1,18 @@
+/*
+ * Copyright 2022 Huawei Technologies Co., Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onap.usecaseui.intentanalysis.adapters.so;
+
+public interface SOService { }
diff --git a/intentanalysis/src/main/java/org/onap/usecaseui/intentanalysis/util/RestfulServices.java b/intentanalysis/src/main/java/org/onap/usecaseui/intentanalysis/util/RestfulServices.java
index 7e7e6c2..ff51dc4 100644
--- a/intentanalysis/src/main/java/org/onap/usecaseui/intentanalysis/util/RestfulServices.java
+++ b/intentanalysis/src/main/java/org/onap/usecaseui/intentanalysis/util/RestfulServices.java
@@ -34,6 +34,11 @@ public class RestfulServices {
 
     private static final Logger logger = LoggerFactory.getLogger(RestfulServices.class);
 
+    private static final String DEFAULT_MSB_IAG_ADDRESS = "msb-iag.onap:443";
+    private static final String ENV_MSB_IAG_SERVICE_HOST = "MSB_IAG_SERVICE_HOST";
+    private static final String ENV_MSB_IAG_SERVICE_PORT = "MSB_IAG_SERVICE_PORT";
+
+
     public static <T> T create(String baseUrl, Class<T> clazz) {
         Retrofit retrofit = new Retrofit.Builder()
                 .baseUrl(baseUrl)
@@ -52,7 +57,7 @@ public class RestfulServices {
                 .hostnameVerifier(getHostnameVerifier())
                 .build();
 
-        String msbUrl = getMsbAddress();
+        String msbUrl = getMSBIAGAddress();
         Retrofit retrofit = new Retrofit.Builder()
                 .baseUrl("https://" + msbUrl + "/")
                 .client(okHttpClient)
@@ -62,14 +67,16 @@ public class RestfulServices {
         return retrofit.create(clazz);
     }
 
-    public static String getMsbAddress() {
-        String msbAddress = System.getenv("MSB_ADDR");
-        if (msbAddress == null) {
-            return "";
+    public static String getMSBIAGAddress(){
+        String iagAddress = System.getenv(ENV_MSB_IAG_SERVICE_HOST);
+        String iagPort = System.getenv(ENV_MSB_IAG_SERVICE_PORT);
+        if(iagAddress == null  || iagPort == null){
+            return DEFAULT_MSB_IAG_ADDRESS;
         }
-        return msbAddress;
+        return iagAddress + ":" + iagPort;
     }
 
+
     public static RequestBody extractBody(HttpServletRequest request) throws IOException {
         BufferedReader br = null;
         StringBuilder sb = new StringBuilder("");