| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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. |
| */ |
| package org.apache.nifi.registry.security.authorization; |
| |
| import org.apache.nifi.registry.security.exception.SecurityProviderCreationException; |
| import org.apache.nifi.registry.util.PropertyValue; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public abstract class AbstractConfigurableAccessPolicyProvider implements ConfigurableAccessPolicyProvider { |
| |
| private static final Logger LOGGER = LoggerFactory.getLogger(AbstractConfigurableAccessPolicyProvider.class); |
| |
| public static final String PROP_USER_GROUP_PROVIDER = "User Group Provider"; |
| |
| private UserGroupProvider userGroupProvider; |
| private UserGroupProviderLookup userGroupProviderLookup; |
| |
| @Override |
| public final void initialize(final AccessPolicyProviderInitializationContext initializationContext) throws SecurityProviderCreationException { |
| LOGGER.debug("Initializing " + getClass().getCanonicalName()); |
| userGroupProviderLookup = initializationContext.getUserGroupProviderLookup(); |
| doInitialize(initializationContext); |
| LOGGER.debug("Done initializing " + getClass().getCanonicalName()); |
| } |
| |
| /** |
| * Sub-classes can override this method to perform additional initialization. |
| */ |
| protected void doInitialize(final AccessPolicyProviderInitializationContext initializationContext) |
| throws SecurityProviderCreationException { |
| |
| } |
| |
| @Override |
| public final void onConfigured(final AuthorizerConfigurationContext configurationContext) throws SecurityProviderCreationException { |
| try { |
| LOGGER.debug("Configuring " + getClass().getCanonicalName()); |
| |
| final PropertyValue userGroupProviderIdentifier = configurationContext.getProperty(PROP_USER_GROUP_PROVIDER); |
| if (!userGroupProviderIdentifier.isSet()) { |
| throw new SecurityProviderCreationException("The user group provider must be specified."); |
| } |
| |
| userGroupProvider = userGroupProviderLookup.getUserGroupProvider(userGroupProviderIdentifier.getValue()); |
| if (userGroupProvider == null) { |
| throw new SecurityProviderCreationException("Unable to locate user group provider with identifier '" + userGroupProviderIdentifier.getValue() + "'"); |
| } |
| |
| doOnConfigured(configurationContext); |
| |
| LOGGER.debug("Done configuring " + getClass().getCanonicalName()); |
| } catch (Exception e) { |
| throw new SecurityProviderCreationException(e); |
| } |
| } |
| |
| /** |
| * Sub-classes can override this method to perform additional actions during onConfigured. |
| */ |
| protected void doOnConfigured(final AuthorizerConfigurationContext configurationContext) throws SecurityProviderCreationException { |
| |
| } |
| |
| @Override |
| public UserGroupProvider getUserGroupProvider() { |
| return userGroupProvider; |
| } |
| |
| } |