package org.oransc.policyagent.repository;
+import java.util.Collection;
+import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
+import java.util.Set;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.springframework.beans.factory.annotation.Autowired;
+import org.oransc.policyagent.exceptions.ServiceException;
public class Policies {
- private static final Logger logger = LoggerFactory.getLogger(Policies.class);
+ private Map<String, Policy> policiesId = new HashMap<>();
+ private Map<String, Map<String, Policy>> policiesRic = new HashMap<>();
+ private Map<String, Map<String, Policy>> policiesService = new HashMap<>();
+ private Map<String, Map<String, Policy>> policiesType = new HashMap<>();
- private Map<String, Policy> policies = new HashMap<String, Policy>();
+ public synchronized void put(Policy policy) {
+ policiesId.put(policy.id(), policy);
+ multiMapPut(policiesRic, policy.ric().name(), policy);
+ multiMapPut(policiesService, policy.ownerServiceName(), policy);
+ multiMapPut(policiesType, policy.type().name(), policy);
+ }
+
+ private void multiMapPut(Map<String, Map<String, Policy>> multiMap, String key, Policy value) {
+ multiMap.computeIfAbsent(key, k -> new HashMap<>()).put(value.id(), value);
+ }
- @Autowired
- public Policies() {
+ private void multiMapRemove(Map<String, Map<String, Policy>> multiMap, String key, Policy value) {
+ Map<String, Policy> map = multiMap.get(key);
+ if (map != null) {
+ map.remove(value.id());
+ if (map.isEmpty()) {
+ multiMap.remove(key);
+ }
+ }
}
- public synchronized void put(String id, Policy policy) {
- policies.put(id, policy);
+ private Collection<Policy> multiMapGet(Map<String, Map<String, Policy>> multiMap, String key) {
+ Map<String, Policy> map = multiMap.get(key);
+ if (map == null) {
+ return Collections.emptyList();
+ }
+ return Collections.unmodifiableCollection(map.values());
+ }
+
+ public synchronized boolean containsPolicy(String id) {
+ return policiesId.containsKey(id);
}
public synchronized Policy get(String id) {
- return policies.get(id);
+ return policiesId.get(id);
+ }
+
+ public synchronized Policy getPolicy(String id) throws ServiceException {
+ Policy p = policiesId.get(id);
+ if (p == null) {
+ throw new ServiceException("Could not find policy: " + id);
+ }
+ return p;
+ }
+
+ public synchronized Collection<Policy> getAll() {
+ return Collections.unmodifiableCollection(policiesId.values());
+ }
+
+ public synchronized Collection<Policy> getForService(String service) {
+ return multiMapGet(policiesService, service);
}
+ public synchronized Collection<Policy> getForRic(String ric) {
+ return multiMapGet(policiesRic, ric);
+ }
+
+ public synchronized Collection<Policy> getForType(String type) {
+ return multiMapGet(policiesType, type);
+ }
+
+ public synchronized Policy removeId(String id) {
+ Policy p = policiesId.get(id);
+ if (p != null) {
+ remove(p);
+ }
+ return p;
+ }
+
+ public synchronized void remove(Policy policy) {
+ policiesId.remove(policy.id());
+ multiMapRemove(policiesRic, policy.ric().name(), policy);
+ multiMapRemove(policiesService, policy.ownerServiceName(), policy);
+ multiMapRemove(policiesType, policy.type().name(), policy);
+ }
+
+ public synchronized int size() {
+ return policiesId.size();
+ }
+
+ public synchronized void clear() {
+ while (policiesId.size() > 0) {
+ Set<String> keys = policiesId.keySet();
+ removeId(keys.iterator().next());
+ }
+ }
}