jerryshao commented on code in PR #5682: URL: https://github.com/apache/gravitino/pull/5682#discussion_r1896297358
########## core/src/main/java/org/apache/gravitino/connector/SupportsCredentialOperations.java: ########## @@ -0,0 +1,85 @@ +/* + * 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.gravitino.connector; + +import com.google.common.base.Preconditions; +import java.util.List; +import java.util.Map; +import java.util.Objects; +import java.util.stream.Collectors; +import org.apache.gravitino.NameIdentifier; +import org.apache.gravitino.credential.Credential; +import org.apache.gravitino.credential.CredentialContext; +import org.apache.gravitino.credential.CredentialPrivilege; +import org.apache.gravitino.credential.CredentialProvider; + +/** + * This interface defines how to get credentials, the catalog operation must implement this + * interface to support credential vending. + */ +public interface SupportsCredentialOperations { + + /** + * Get the mapping of credential provider type and {@link CredentialContext}. + * + * <p>In most cases, there will be only one element in the map, For fileset catalog which supports + * multiple credentials, there will be multiple elements. + * + * @param nameIdentifier The name identifier for the catalog, fileset, table, etc. + * @param privilege The credential privilege object. + * @return A map with credential provider type and {@link CredentialContext}. + */ + Map<String, CredentialContext> getCredentialContexts( + NameIdentifier nameIdentifier, CredentialPrivilege privilege); + + /** + * Get the mapping of the credential provider type and {@link CredentialProvider}. + * + * @return A map with of the credential provider type {@link CredentialProvider}. + */ + Map<String, CredentialProvider> getCatalogCredentialProviders(); + + /** + * Obtains the corresponding list of credentials based on the name identifier and the credential + * privilege. + * + * @param nameIdentifier The name identifier for the catalog, fileset, table, etc. + * @param privilege The credential privilege object. + * @return A list of {@link Credential}. + */ + default List<Credential> getCredentials( + NameIdentifier nameIdentifier, CredentialPrivilege privilege) { + Map<String, CredentialContext> contexts = getCredentialContexts(nameIdentifier, privilege); + Map<String, CredentialProvider> providers = getCatalogCredentialProviders(); + return contexts.entrySet().stream() + .map( + entry -> { + String credentialType = entry.getKey(); + CredentialContext context = entry.getValue(); + Preconditions.checkState( + providers.containsKey(credentialType), + String.format("Credential %s not found", credentialType)); + CredentialProvider provider = providers.get(credentialType); + return provider.getCredential(context); + }) + .filter(Objects::nonNull) + .collect(Collectors.toList()); + } +} Review Comment: Can we achieve this in the `BaseCatalog`, to mix this interface into `BaseCatalog`? -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: commits-unsubscr...@gravitino.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
