import java.util.List;
import java.util.Map;
import java.util.ServiceLoader;
+import java.util.stream.Collectors;
import org.onap.policy.models.decisions.concepts.DecisionRequest;
+import org.onap.policy.models.tosca.authorative.concepts.ToscaPolicy;
+import org.onap.policy.models.tosca.authorative.concepts.ToscaPolicyIdentifier;
import org.onap.policy.models.tosca.authorative.concepts.ToscaPolicyTypeIdentifier;
import org.onap.policy.pdp.xacml.application.common.XacmlApplicationException;
import org.onap.policy.pdp.xacml.application.common.XacmlApplicationServiceProvider;
private static ServiceLoader<XacmlApplicationServiceProvider> applicationLoader;
private static Map<String, XacmlApplicationServiceProvider> providerActionMap = new HashMap<>();
private static List<ToscaPolicyTypeIdentifier> toscaPolicyTypeIdents = new ArrayList<>();
+ private static List<ToscaPolicyIdentifier> toscaPolicyIdents = new ArrayList<>();
+ private static List<ToscaPolicy> toscaPolicies = new ArrayList<>();
+ private static Map<ToscaPolicy, XacmlApplicationServiceProvider> mapLoadedPolicies = new HashMap<>();
+
private XacmlPdpApplicationManager() {
super();
return providerActionMap.get(request.getAction());
}
+ /**
+ * getToscaPolicies.
+ *
+ * @return the map containing ToscaPolicies
+ */
+ public static Map<ToscaPolicy, XacmlApplicationServiceProvider> getToscaPolicies() {
+ return mapLoadedPolicies;
+ }
+
+ /**
+ * getToscaPolicyIdentifiers.
+ *
+ * @return list of ToscaPolicyIdentifier
+ */
+ public static List<ToscaPolicyIdentifier> getToscaPolicyIdentifiers() {
+ //
+ // converting map to return List of ToscaPolicyIdentiers
+ //
+ return mapLoadedPolicies.keySet().stream().map(ToscaPolicy::getIdentifier).collect(Collectors.toList());
+ }
+
public static List<ToscaPolicyTypeIdentifier> getToscaPolicyTypeIdents() {
return toscaPolicyTypeIdents;
}
+ /**
+ * Finds the appropriate application and removes the policy.
+ *
+ * @param policy Incoming policy
+ */
+ public static void removeUndeployedPolicy(ToscaPolicy policy) {
+
+ for (XacmlApplicationServiceProvider application : applicationLoader) {
+ try {
+ if (application.unloadPolicy(policy)) {
+ LOGGER.info("Unloaded ToscaPolicy {} from application {}", policy.getMetadata(),
+ application.applicationName());
+ if (mapLoadedPolicies.remove(policy) == null) {
+ LOGGER.error("Failed to remove unloaded policy {} from map size {}", policy.getMetadata(),
+ mapLoadedPolicies.size());
+ }
+ }
+ } catch (XacmlApplicationException e) {
+ LOGGER.error("Failed to undeploy the Tosca Policy", e);
+ }
+ }
+ }
+
+ /**
+ * Finds the appropriate application and loads the policy.
+ *
+ * @param policy Incoming policy
+ */
+ public static void loadDeployedPolicy(ToscaPolicy policy) {
+
+ for (XacmlApplicationServiceProvider application : applicationLoader) {
+ try {
+ //
+ // There should be only one application per policytype. We can
+ // put more logic surrounding enforcement of that later. For now,
+ // just use the first one found.
+ //
+ if (application.canSupportPolicyType(policy.getTypeIdentifier())) {
+ if (application.loadPolicy(policy)) {
+ LOGGER.info("Loaded ToscaPolicy {} into application {}", policy.getMetadata(),
+ application.applicationName());
+ mapLoadedPolicies.put(policy, application);
+ }
+ return;
+ }
+ } catch (XacmlApplicationException e) {
+ LOGGER.error("Failed to load the Tosca Policy", e);
+ }
+ }
+ }
+
/**
* Returns the current count of policy types supported. This could be misleading a bit
* as some applications can support wildcard of policy types. Eg. onap.Monitoring.* as