import com.att.eelf.configuration.EELFLogger;
import com.att.eelf.configuration.EELFManager;
-
+import java.util.ArrayList;
+import java.util.LinkedHashMap;
+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.loop.template.PolicyModel;
+import org.onap.clamp.loop.template.PolicyModelsService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
+import org.yaml.snakeyaml.Yaml;
+
+
+
/**
* The class implements the communication with the Policy Engine to retrieve
public class PolicyEngineServices {
private final CamelContext camelContext;
- private final ClampProperties refProp;
+ private final PolicyModelsService policyModelsSService;
+
+ 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;
- protected static final EELFLogger logger = EELFManager.getInstance().getLogger(PolicyEngineServices.class);
- protected static final EELFLogger auditLogger = EELFManager.getInstance().getAuditLogger();
- protected static final EELFLogger metricsLogger = EELFManager.getInstance().getMetricsLogger();
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 policyModelsSService policyModel repository bean
+ */
@Autowired
- public PolicyEngineServices(CamelContext camelContext, ClampProperties refProp) {
- this.refProp = refProp;
+ public PolicyEngineServices(CamelContext camelContext, ClampProperties clampProperties,
+ PolicyModelsService policyModelsSService) {
this.camelContext = camelContext;
+ this.policyModelsSService = policyModelsSService;
+ if (clampProperties.getStringValue(POLICY_RETRY_LIMIT) != null) {
+ retryLimit = Integer.parseInt(clampProperties.getStringValue(POLICY_RETRY_LIMIT));
+ }
+ if (clampProperties.getStringValue(POLICY_RETRY_INTERVAL) != null) {
+ retryInterval = Integer.parseInt(clampProperties.getStringValue(POLICY_RETRY_INTERVAL));
+ }
+ }
+
+ /**
+ * 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) {
+ return new PolicyModel(policyType, this.downloadOnePolicy(policyType, policyVersion), policyVersion);
+ }
+
+ /**
+ * 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 void downloadAllPolicies() {
- /*
- * Exchange myCamelExchange = ExchangeBuilder.anExchange(camelContext)
- * .withProperty("blueprintResourceId",
- * resourceUuid).withProperty("blueprintServiceId", serviceUuid)
- * .withProperty("blueprintName", artifactName).build();
- * metricsLogger.info("Attempt n°" + i + " to contact DCAE inventory");
- *
- * Exchange exchangeResponse =
- * camelContext.createProducerTemplate().send("direct:get-all-policy-models",
- * myCamelExchange);
- */
+ /**
+ * 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;
+ }
+
+ List<LinkedHashMap<String, Object>> policyTypesList = (List<LinkedHashMap<String, Object>>) loadedYaml
+ .get("policy_types");
+ policyTypesList.parallelStream().forEach(policyType -> {
+ Map.Entry<String, Object> policyTypeEntry = (Map.Entry<String, Object>) new ArrayList(policyType.entrySet()).get(0);
+
+ policyModelsSService.createPolicyInDbIfNeeded(
+ createPolicyModelFromPolicyEngine(policyTypeEntry.getKey(),
+ ((String) ((LinkedHashMap<String, Object>) policyTypeEntry.getValue()).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
+ */
+ public String downloadAllPolicies() {
+ return callCamelRoute(ExchangeBuilder.anExchange(camelContext).build(), "direct:get-all-policy-models");
}
/**
* @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 {
- int retryInterval = 0;
- int retryLimit = 1;
- if (refProp.getStringValue(POLICY_RETRY_LIMIT) != null) {
- retryLimit = Integer.valueOf(refProp.getStringValue(POLICY_RETRY_LIMIT));
- }
- if (refProp.getStringValue(POLICY_RETRY_INTERVAL) != null) {
- retryInterval = Integer.valueOf(refProp.getStringValue(POLICY_RETRY_INTERVAL));
- }
- for (int i = 0; i < retryLimit; i++) {
- Exchange paramExchange = ExchangeBuilder.anExchange(camelContext)
- .withProperty("policyModelName", policyType).withProperty("policyModelVersion", policyVersion)
- .build();
-
- Exchange exchangeResponse = camelContext.createProducerTemplate().send("direct:get-policy-model",
- paramExchange);
+ public String downloadOnePolicy(String policyType, String policyVersion) {
+ return callCamelRoute(ExchangeBuilder.anExchange(camelContext).withProperty("policyModelName", policyType)
+ .withProperty("policyModelVersion", policyVersion).build(), "direct:get-policy-model");
+ }
+ private String callCamelRoute(Exchange exchange, String camelFlow) {
+ 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 " + retryInterval + "ms before retrying ...");
+ logger.info("Policy 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