import org.onap.policy.common.logging.flexlogger.Logger;
public class JPAUtils {
- private static final Logger LOGGER = FlexLogger.getLogger(JPAUtils.class);
-
- private static EntityManagerFactory emf;
- private static JPAUtils currentInstance = null;
-
-
- /**
- * Get an instance of a JPAUtils. It creates one if it does not exist.
- * Only one instance is allowed to be created per server.
- * @param emf The EntityFactoryManager to be used for database connections
- * @return The new instance of JPAUtils or throw exception if the given emf is null.
- * @throws IllegalStateException if a JPAUtils has already been constructed. Call getJPAUtilsInstance() to get this.
- */
- public static JPAUtils getJPAUtilsInstance(EntityManagerFactory emf){
- LOGGER.debug("getJPAUtilsInstance(EntityManagerFactory emf) as getJPAUtilsInstance("+emf+") called");
- if(currentInstance == null){
- if(emf != null){
- currentInstance = new JPAUtils(emf);
- return currentInstance;
- }
- throw new IllegalStateException("The EntityManagerFactory is Null");
- }
- return currentInstance;
- }
-
- private JPAUtils(EntityManagerFactory emf){
- LOGGER.debug("JPAUtils(EntityManagerFactory emf) as JPAUtils("+emf+") called");
- JPAUtils.emf = emf;
- }
-
- /**
- * Returns the lockdown value, in case of exception it is assumed that lockdown functionality
- * is not supported and returns false.
- *
- *
- * @throws ReadOnlyException
- * @throws ConversionException
- */
- public boolean dbLockdownIgnoreErrors() {
- if (LOGGER.isTraceEnabled())
- LOGGER.trace("ENTER");
-
- boolean lockdown = false;
- try {
- lockdown = dbLockdown();
- } catch (Exception e) {
- LOGGER.warn("Cannot access DB lockdown value", e);
- }
- return lockdown;
- }
-
- /**
- * Returns the lockdown value from the database.
- *
- * @throws ReadOnlyException
- * @throws ConversionException
- */
- public boolean dbLockdown()
- throws IllegalAccessException {
- if (LOGGER.isTraceEnabled())
- LOGGER.trace("ENTER");
-
- EntityManager em = emf.createEntityManager();
- Query globalRoleSettingsJPA = em.createNamedQuery("GlobalRoleSettings.findAll");
-
- GlobalRoleSettings globalRoleSettings = (GlobalRoleSettings) globalRoleSettingsJPA.getSingleResult();
-
- if (globalRoleSettings == null) {
- // this should not happen
- String msg = "NO GlobalSetttings for " + XacmlAdminAuthorization.Role.ROLE_SUPERADMIN.toString();
- if (LOGGER.isErrorEnabled())
- LOGGER.error(msg);
- throw new IllegalAccessException(msg);
- }
-
- if (!globalRoleSettings.getRole().equals(XacmlAdminAuthorization.Role.ROLE_SUPERADMIN.toString())) {
- String msg = "NOT FOUND db data for " + XacmlAdminAuthorization.Role.ROLE_SUPERADMIN.toString();
- if (LOGGER.isErrorEnabled())
- LOGGER.error(msg);
- throw new IllegalAccessException(msg);
- }
-
- return globalRoleSettings.isLockdown();
- }
+ private static final Logger LOGGER = FlexLogger.getLogger(JPAUtils.class);
+
+ private static EntityManagerFactory emf;
+ private static JPAUtils currentInstance = null;
+
+
+ /**
+ * Get an instance of a JPAUtils. It creates one if it does not exist.
+ * Only one instance is allowed to be created per server.
+ * @param emf The EntityFactoryManager to be used for database connections
+ * @return The new instance of JPAUtils or throw exception if the given emf is null.
+ * @throws IllegalStateException if a JPAUtils has already been constructed. Call getJPAUtilsInstance() to get this.
+ */
+ public static JPAUtils getJPAUtilsInstance(EntityManagerFactory emf){
+ LOGGER.debug("getJPAUtilsInstance(EntityManagerFactory emf) as getJPAUtilsInstance("+emf+") called");
+ if(currentInstance == null){
+ if(emf != null){
+ currentInstance = new JPAUtils(emf);
+ return currentInstance;
+ }
+ throw new IllegalStateException("The EntityManagerFactory is Null");
+ }
+ return currentInstance;
+ }
+
+ private JPAUtils(EntityManagerFactory emf){
+ LOGGER.debug("JPAUtils(EntityManagerFactory emf) as JPAUtils("+emf+") called");
+ JPAUtils.emf = emf;
+ }
+
+ /**
+ * Returns the lockdown value, in case of exception it is assumed that lockdown functionality
+ * is not supported and returns false.
+ *
+ *
+ * @throws ReadOnlyException
+ * @throws ConversionException
+ */
+ public boolean dbLockdownIgnoreErrors() {
+ if (LOGGER.isTraceEnabled())
+ LOGGER.trace("ENTER");
+
+ boolean lockdown = false;
+ try {
+ lockdown = dbLockdown();
+ } catch (Exception e) {
+ LOGGER.warn("Cannot access DB lockdown value", e);
+ }
+ return lockdown;
+ }
+
+ /**
+ * Returns the lockdown value from the database.
+ *
+ * @throws ReadOnlyException
+ * @throws ConversionException
+ */
+ public boolean dbLockdown()
+ throws IllegalAccessException {
+ if (LOGGER.isTraceEnabled())
+ LOGGER.trace("ENTER");
+
+ EntityManager em = emf.createEntityManager();
+ Query globalRoleSettingsJPA = em.createNamedQuery("GlobalRoleSettings.findAll");
+
+ GlobalRoleSettings globalRoleSettings = (GlobalRoleSettings) globalRoleSettingsJPA.getSingleResult();
+
+ if (globalRoleSettings == null) {
+ // this should not happen
+ String msg = "NO GlobalSetttings for " + XacmlAdminAuthorization.Role.ROLE_SUPERADMIN.toString();
+ if (LOGGER.isErrorEnabled())
+ LOGGER.error(msg);
+ throw new IllegalAccessException(msg);
+ }
+
+ if (!globalRoleSettings.getRole().equals(XacmlAdminAuthorization.Role.ROLE_SUPERADMIN.toString())) {
+ String msg = "NOT FOUND db data for " + XacmlAdminAuthorization.Role.ROLE_SUPERADMIN.toString();
+ if (LOGGER.isErrorEnabled())
+ LOGGER.error(msg);
+ throw new IllegalAccessException(msg);
+ }
+
+ return globalRoleSettings.isLockdown();
+ }
}