sfc-gh-mparmar commented on code in PR #14465: URL: https://github.com/apache/iceberg/pull/14465#discussion_r2487456225
########## core/src/main/java/org/apache/iceberg/rest/RESTOperationsBuilder.java: ########## @@ -0,0 +1,145 @@ +/* + * 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.iceberg.rest; + +import java.util.List; +import java.util.Map; +import java.util.Set; +import java.util.function.Supplier; +import org.apache.iceberg.MetadataUpdate; +import org.apache.iceberg.TableMetadata; +import org.apache.iceberg.io.FileIO; +import org.apache.iceberg.view.ViewMetadata; + +/** + * A builder interface for creating {@link RESTTableOperations} and {@link RESTViewOperations} + * instances for REST catalogs. + * + * <p>This interface allows custom implementations of table and view operations to be injected into + * {@link RESTSessionCatalog} and {@link RESTCatalog}, enabling extensibility for specialized use + * cases. + * + * <p>Example usage: + * + * <pre> + * RESTOperationsBuilder customBuilder = new RESTOperationsBuilder() { + * {@literal @}Override + * public RESTTableOperations createTableOperations( + * RESTClient client, + * String path, + * Supplier<Map<String, String>> headers, + * FileIO io, + * TableMetadata current, + * Set<Endpoint> endpoints) { + * return new CustomRESTTableOperations(client, path, headers, io, current, endpoints); + * } + * + * {@literal @}Override + * public RESTViewOperations createViewOperations( + * RESTClient client, + * String path, + * Supplier<Map<String, String>> headers, + * ViewMetadata current, + * Set<Endpoint> endpoints) { + * return new CustomRESTViewOperations(client, path, headers, current, endpoints); + * } + * }; + * + * RESTSessionCatalog catalog = new RESTSessionCatalog(clientBuilder, ioBuilder, customBuilder); + * </pre> + */ +public interface RESTOperationsBuilder { + + /** + * Create a new {@link RESTTableOperations} instance for simple table operations. + * + * <p>The default implementation creates a standard {@link RESTTableOperations} instance. + * + * @param client the REST client to use for communicating with the catalog server + * @param path the REST path for the table + * @param headers a supplier for additional HTTP headers to include in requests + * @param io the FileIO implementation for reading and writing table metadata and data files + * @param current the current table metadata + * @param endpoints the set of supported REST endpoints + * @return a new RESTTableOperations instance + */ + default RESTTableOperations createTableOperations( + RESTClient client, + String path, + Supplier<Map<String, String>> headers, + FileIO io, + TableMetadata current, + Set<Endpoint> endpoints) { + return new RESTTableOperations(client, path, headers, io, current, endpoints); + } + + /** + * Create a new {@link RESTTableOperations} instance for transaction-based operations (create or + * replace). + * + * <p>This method is used when creating tables or replacing table metadata within a transaction. + * The default implementation creates a standard {@link RESTTableOperations} instance. + * + * @param client the REST client to use for communicating with the catalog server + * @param path the REST path for the table + * @param headers a supplier for additional HTTP headers to include in requests + * @param io the FileIO implementation for reading and writing table metadata and data files + * @param updateType the type of update being performed (CREATE, REPLACE, or SIMPLE) + * @param createChanges the list of metadata updates to apply during table creation or replacement + * @param current the current table metadata (may be null for CREATE operations) + * @param endpoints the set of supported REST endpoints + * @return a new RESTTableOperations instance + */ + default RESTTableOperations createTableOperationsForTransaction( + RESTClient client, + String path, + Supplier<Map<String, String>> headers, + FileIO io, + RESTTableOperations.UpdateType updateType, + List<MetadataUpdate> createChanges, + TableMetadata current, + Set<Endpoint> endpoints) { + return new RESTTableOperations( + client, path, headers, io, updateType, createChanges, current, endpoints); + } + + /** + * Create a new {@link RESTViewOperations} instance. + * + * <p>The default implementation creates a standard {@link RESTViewOperations} instance. + * + * @param client the REST client to use for communicating with the catalog server + * @param path the REST path for the view + * @param headers a supplier for additional HTTP headers to include in requests + * @param current the current view metadata + * @param endpoints the set of supported REST endpoints + * @return a new RESTViewOperations instance + */ + default RESTViewOperations createViewOperations( Review Comment: How is fileIO handled for view opertions? -- This is an automated message from the Apache Git Service. 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