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/*
* 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.adapters.policy.apicall.PolicyAuthConfig;
import org.onap.usecaseui.intentanalysis.util.RestfulServices;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
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;
@Autowired
PolicyAuthConfig policyAuthConfig;
public PolicyAPICall getPolicyAPICall() {
if (null == policyAPICall) {
this.policyAPICall = RestfulServices.create(PolicyAPICall.class, policyAuthConfig.getUserName(),
policyAuthConfig.getPassword());
}
return this.policyAPICall;
}
@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 = getPolicyAPICall().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 = getPolicyAPICall().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 = getPolicyAPICall().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 = getPolicyAPICall().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 = getPolicyAPICall().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 = getPolicyAPICall().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 = getPolicyAPICall().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 = getPolicyAPICall().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;
}
}
}
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