--- /dev/null
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP-PAP-REST
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.pap.xacml.rest.util;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import javax.persistence.EntityManager;
+import javax.persistence.EntityManagerFactory;
+import javax.persistence.Query;
+import javax.servlet.ServletException;
+
+import org.onap.policy.rest.XacmlAdminAuthorization;
+import org.onap.policy.rest.jpa.Attribute;
+import org.onap.policy.rest.jpa.Datatype;
+import org.onap.policy.rest.jpa.FunctionDefinition;
+import org.onap.policy.rest.jpa.GlobalRoleSettings;
+
+import oasis.names.tc.xacml._3_0.core.schema.wd_17.AttributeDesignatorType;
+import oasis.names.tc.xacml._3_0.core.schema.wd_17.AttributeSelectorType;
+
+import org.onap.policy.common.logging.flexlogger.FlexLogger;
+import org.onap.policy.common.logging.flexlogger.Logger;
+
+public class JPAUtils {
+ private static Logger LOGGER = FlexLogger.getLogger(JPAUtils.class);
+
+ private EntityManagerFactory emf;
+ private static final Object mapAccess = new Object();
+ private static Map<Datatype, List<FunctionDefinition>> mapDatatype2Function = null;
+ private static Map<String, FunctionDefinition> mapID2Function = null;
+ 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) throws Exception{
+ 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");
+ this.emf = emf;
+ }
+
+ /**
+ * Gets the current instance of JPAUtils.
+ * @return The instance of JPAUtils or throws exception if the given instance is null.
+ * @throws IllegalStateException if a JPAUtils instance is null. Call getJPAUtilsInstance(EntityManagerFactory emf) to get this.
+ */
+ public static JPAUtils getJPAUtilsInstance() throws Exception{
+ LOGGER.debug("getJPAUtilsInstance() as getJPAUtilsInstance() called");
+ if(currentInstance != null){
+ return currentInstance;
+ }
+ throw new IllegalStateException("The JPAUtils.currentInstance is Null. Use getJPAUtilsInstance(EntityManagerFactory emf)");
+ }
+
+ public static AttributeDesignatorType createDesignator(Attribute attribute) {
+ AttributeDesignatorType designator = new AttributeDesignatorType();
+ designator.setAttributeId(attribute.getXacmlId());
+ if (attribute.getCategoryBean() != null) {
+ designator.setCategory(attribute.getCategoryBean().getXacmlId());
+ } else {
+ LOGGER.warn("No category bean");
+ }
+ if (attribute.getDatatypeBean() != null) {
+ designator.setDataType(attribute.getDatatypeBean().getXacmlId());
+ } else {
+ LOGGER.warn("No datatype bean");
+ }
+ designator.setIssuer(attribute.getIssuer());
+ designator.setMustBePresent(attribute.isMustBePresent());
+ return designator;
+ }
+
+ public static AttributeSelectorType createSelector(Attribute attribute) {
+ AttributeSelectorType selector = new AttributeSelectorType();
+ selector.setContextSelectorId(attribute.getXacmlId());
+ selector.setPath(attribute.getSelectorPath());
+ if (attribute.getCategoryBean() != null) {
+ selector.setCategory(attribute.getCategoryBean().getXacmlId());
+ } else {
+ LOGGER.warn("No category bean");
+ }
+ if (attribute.getDatatypeBean() != null) {
+ selector.setDataType(attribute.getDatatypeBean().getXacmlId());
+ } else {
+ LOGGER.warn("No datatype bean");
+ }
+ selector.setMustBePresent(attribute.isMustBePresent());
+ return selector;
+ }
+
+ /**
+ * Builds a map in memory of a functions return datatype to function definition. Useful in limiting the number
+ * of SQL calls to DB especially when we don't expect these to change much.
+ *
+ * @return - A HashMap of Datatype JPA Container ID's to FunctionDefinition objects
+ */
+ public Map<Datatype, List<FunctionDefinition>> getFunctionDatatypeMap() {
+
+ synchronized(mapAccess) {
+ if (mapDatatype2Function == null||mapDatatype2Function.isEmpty()) {
+ try {
+ buildFunctionMaps();
+ } catch (ServletException e) {
+ LOGGER.error("Exception Occured"+e);
+ }
+ }
+ }
+ return mapDatatype2Function;
+ }
+
+ public Map<String, FunctionDefinition> getFunctionIDMap() {
+ synchronized(mapAccess) {
+ if (mapID2Function == null||mapID2Function.equals("{}")) {
+ try {
+ buildFunctionMaps();
+ } catch (ServletException e) {
+ LOGGER.error("Exception Occured"+e);
+ }
+ }
+ }
+ return mapID2Function;
+ }
+
+ private void buildFunctionMaps() throws ServletException {
+ mapDatatype2Function = new HashMap<>();
+ mapID2Function = new HashMap<>();
+
+ EntityManager em = emf.createEntityManager();
+ Query getFunctionDefinitions = em.createNamedQuery("FunctionDefinition.findAll");
+ List<?> functionList = getFunctionDefinitions.getResultList();
+
+ for (Object id : functionList) {
+ FunctionDefinition value = (FunctionDefinition)id;
+ mapID2Function.put(value.getXacmlid(), value);
+ if (mapDatatype2Function.containsKey(value.getDatatypeBean()) == false) {
+ mapDatatype2Function.put(value.getDatatypeBean(), new ArrayList<FunctionDefinition>());
+ }
+ mapDatatype2Function.get(value.getDatatypeBean()).add(value);
+ }
+
+ em.close();
+
+ }
+
+ /**
+ * 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();
+ }
+
+
+
+}
Code Review / policy / engine.git / blobdiff