import com.att.eelf.configuration.EELFLogger;
import com.att.eelf.configuration.EELFManager;
-
+import com.google.gson.JsonArray;
+import com.google.gson.JsonObject;
+import java.util.LinkedHashMap;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
import org.apache.camel.CamelContext;
import org.apache.camel.Exchange;
import org.apache.camel.builder.ExchangeBuilder;
import org.onap.clamp.clds.config.ClampProperties;
import org.onap.clamp.clds.sdc.controller.installer.BlueprintMicroService;
+import org.onap.clamp.clds.util.JsonUtils;
import org.onap.clamp.loop.template.PolicyModel;
+import org.onap.clamp.loop.template.PolicyModelId;
+import org.onap.clamp.loop.template.PolicyModelsService;
+import org.onap.clamp.policy.pdpgroup.PdpGroup;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
+import org.yaml.snakeyaml.DumperOptions;
+import org.yaml.snakeyaml.Yaml;
+
/**
* The class implements the communication with the Policy Engine to retrieve
* policy models (tosca). It mainly delegates the physical calls to Camel
* engine.
- *
*/
@Component
public class PolicyEngineServices {
private final CamelContext camelContext;
+ private final PolicyModelsService policyModelsService;
+
private static final EELFLogger logger = EELFManager.getInstance().getLogger(PolicyEngineServices.class);
- private static final EELFLogger auditLogger = EELFManager.getInstance().getAuditLogger();
- private static final EELFLogger metricsLogger = EELFManager.getInstance().getMetricsLogger();
private static int retryInterval = 0;
private static int retryLimit = 1;
public static final String POLICY_RETRY_INTERVAL = "policy.retry.interval";
public static final String POLICY_RETRY_LIMIT = "policy.retry.limit";
+ /**
+ * Default constructor.
+ *
+ * @param camelContext Camel context bean
+ * @param clampProperties ClampProperties bean
+ * @param policyModelsService policyModel service
+ */
@Autowired
- public PolicyEngineServices(CamelContext camelContext, ClampProperties refProp) {
+ public PolicyEngineServices(CamelContext camelContext, ClampProperties clampProperties,
+ PolicyModelsService policyModelsService) {
this.camelContext = camelContext;
-
- if (refProp.getStringValue(POLICY_RETRY_LIMIT) != null) {
- retryLimit = Integer.valueOf(refProp.getStringValue(POLICY_RETRY_LIMIT));
+ this.policyModelsService = policyModelsService;
+ if (clampProperties.getStringValue(POLICY_RETRY_LIMIT) != null) {
+ retryLimit = Integer.parseInt(clampProperties.getStringValue(POLICY_RETRY_LIMIT));
}
- if (refProp.getStringValue(POLICY_RETRY_INTERVAL) != null) {
- retryInterval = Integer.valueOf(refProp.getStringValue(POLICY_RETRY_INTERVAL));
+ if (clampProperties.getStringValue(POLICY_RETRY_INTERVAL) != null) {
+ retryInterval = Integer.parseInt(clampProperties.getStringValue(POLICY_RETRY_INTERVAL));
}
}
- public PolicyModel createPolicyModelFromPolicyEngine(String policyType, String policyVersion)
- throws InterruptedException {
- return new PolicyModel(policyType, this.downloadOnePolicy(policyType, policyVersion), policyVersion,
- createPolicyAcronym(policyType));
+ /**
+ * This method query Policy engine and create a PolicyModel object with type and version.
+ *
+ * @param policyType The policyType id
+ * @param policyVersion The policy version of that type
+ * @return A PolicyModel created from policyEngine data
+ */
+ public PolicyModel createPolicyModelFromPolicyEngine(String policyType, String policyVersion) {
+ if (!policyModelsService.existsById(
+ new PolicyModelId(policyType, policyVersion))) {
+ return policyModelsService.savePolicyModelInNewTransaction(
+ new PolicyModel(policyType, this.downloadOnePolicy(policyType, policyVersion), policyVersion));
+ }
+ logger.info("Skipping policy model download as it exists already in the database " + policyType
+ + "/" + policyVersion);
+ return null;
}
- public PolicyModel createPolicyModelFromPolicyEngine(BlueprintMicroService microService)
- throws InterruptedException {
+ /**
+ * This method query Policy engine and create a PolicyModel object with type and version.
+ *
+ * @param microService microservice object instance
+ * @return A PolicyModel created from policyEngine data
+ */
+ public PolicyModel createPolicyModelFromPolicyEngine(BlueprintMicroService microService) {
return createPolicyModelFromPolicyEngine(microService.getModelType(), microService.getModelVersion());
}
- private static String createPolicyAcronym(String policyType) {
- String[] policyNameArray = policyType.split("\\.");
- return policyNameArray[policyNameArray.length - 1];
+ /**
+ * This method synchronize the clamp database and the policy engine.
+ * So it creates the required PolicyModel.
+ */
+ public void synchronizeAllPolicies() {
+ LinkedHashMap<String, Object> loadedYaml;
+ loadedYaml = new Yaml().load(downloadAllPolicies());
+ if (loadedYaml == null || loadedYaml.isEmpty()) {
+ logger.warn("getAllPolicyType yaml returned by policy engine could not be decoded, as it's null or empty");
+ return;
+ }
+
+ LinkedHashMap<String, Object> policyTypesMap = (LinkedHashMap<String, Object>) loadedYaml
+ .get("policy_types");
+ policyTypesMap.forEach((key, value) ->
+ this.createPolicyModelFromPolicyEngine(key,
+ ((String) ((LinkedHashMap<String, Object>) value).get("version"))));
}
/**
* This method can be used to download all policy types + data types defined in
* policy engine.
- *
+ *
* @return A yaml containing all policy Types and all data types
- * @throws InterruptedException In case of issue when sleeping during the retry
*/
- public String downloadAllPolicies() throws InterruptedException {
- return callCamelRoute(ExchangeBuilder.anExchange(camelContext).build(), "direct:get-all-policy-models");
+ public String downloadAllPolicies() {
+ return callCamelRoute(ExchangeBuilder.anExchange(camelContext).build(), "direct:get-all-policy-models",
+ "Get all policies");
}
/**
* This method can be used to download a policy tosca model on the engine.
- *
+ *
* @param policyType The policy type (id)
* @param policyVersion The policy version
* @return A string with the whole policy tosca model
- * @throws InterruptedException In case of issue when sleeping during the retry
*/
- public String downloadOnePolicy(String policyType, String policyVersion) throws InterruptedException {
- return callCamelRoute(ExchangeBuilder.anExchange(camelContext).withProperty("policyModelName", policyType)
- .withProperty("policyModelVersion", policyVersion).build(), "direct:get-policy-model");
+ public String downloadOnePolicy(String policyType, String policyVersion) {
+ logger.info("Downloading the policy model " + policyType + "/" + policyVersion);
+ DumperOptions options = new DumperOptions();
+ options.setDefaultScalarStyle(DumperOptions.ScalarStyle.PLAIN);
+ options.setIndent(4);
+ options.setPrettyFlow(true);
+ options.setDefaultFlowStyle(DumperOptions.FlowStyle.BLOCK);
+ Yaml yamlParser = new Yaml(options);
+ return yamlParser.dump((Map<String, Object>) yamlParser.load(callCamelRoute(
+ ExchangeBuilder.anExchange(camelContext).withProperty("policyModelName", policyType)
+ .withProperty("policyModelVersion", policyVersion).build(), "direct:get-policy-model",
+ "Get one policy")));
+ }
+
+ /**
+ * This method can be used to download all Pdp Groups data from policy engine.
+ */
+ public void downloadPdpGroups() {
+ String responseBody =
+ callCamelRoute(ExchangeBuilder.anExchange(camelContext).build(), "direct:get-all-pdp-groups",
+ "Get Pdp Groups");
+
+ if (responseBody == null || responseBody.isEmpty()) {
+ logger.warn("getPdpGroups returned by policy engine could not be decoded, as it's null or empty");
+ return;
+ }
+
+ JsonObject jsonObj = JsonUtils.GSON.fromJson(responseBody, JsonObject.class);
+
+ List<PdpGroup> pdpGroupList = new LinkedList<>();
+ JsonArray itemsArray = (JsonArray) jsonObj.get("groups");
+
+ for (com.google.gson.JsonElement jsonElement : itemsArray) {
+ JsonObject item = (JsonObject) jsonElement;
+ PdpGroup pdpGroup = JsonUtils.GSON.fromJson(item.toString(), PdpGroup.class);
+ pdpGroupList.add(pdpGroup);
+ }
+
+ policyModelsService.updatePdpGroupInfo(pdpGroupList);
}
- private String callCamelRoute(Exchange exchange, String camelFlow) throws InterruptedException {
+ private String callCamelRoute(Exchange exchange, String camelFlow, String logMsg) {
for (int i = 0; i < retryLimit; i++) {
Exchange exchangeResponse = camelContext.createProducerTemplate().send(camelFlow, exchange);
if (Integer.valueOf(200).equals(exchangeResponse.getIn().getHeader("CamelHttpResponseCode"))) {
return (String) exchangeResponse.getIn().getBody();
- } else {
- logger.info("Policy query " + retryInterval + "ms before retrying ...");
+ }
+ else {
+ logger.info(logMsg + " query " + retryInterval + "ms before retrying ...");
// wait for a while and try to connect to DCAE again
- Thread.sleep(retryInterval);
+ try {
+ Thread.sleep(retryInterval);
+ } catch (InterruptedException e) {
+ Thread.currentThread().interrupt();
+ }
}
}
return "";
Code Review / clamp.git / blobdiff