FANNG1 commented on code in PR #4598: URL: https://github.com/apache/gravitino/pull/4598#discussion_r1728178727
########## iceberg/iceberg-rest-server/src/main/java/org/apache/gravitino/iceberg/provider/GravitinoBasedIcebergTableOpsProvider.java: ########## @@ -0,0 +1,101 @@ +/* + * 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.iceberg.provider; + +import com.google.common.annotations.VisibleForTesting; +import com.google.common.base.Preconditions; +import java.util.Map; +import java.util.concurrent.atomic.AtomicReference; +import org.apache.commons.lang3.StringUtils; +import org.apache.gravitino.Catalog; +import org.apache.gravitino.catalog.lakehouse.iceberg.IcebergConstants; +import org.apache.gravitino.catalog.lakehouse.iceberg.IcebergPropertiesUtils; +import org.apache.gravitino.client.GravitinoAdminClient; +import org.apache.gravitino.client.GravitinoMetalake; +import org.apache.gravitino.iceberg.common.IcebergConfig; +import org.apache.gravitino.iceberg.common.ops.IcebergTableOps; +import org.apache.gravitino.iceberg.common.ops.IcebergTableOpsProvider; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +/** + * This provider proxy Gravitino lakehouse-iceberg catalogs. + * + * <p>For example, there are one catalog named iceberg_catalog in metalake + * + * <p>The catalogName is iceberg_catalog + */ +public class GravitinoBasedIcebergTableOpsProvider implements IcebergTableOpsProvider { + public static final Logger LOG = + LoggerFactory.getLogger(GravitinoBasedIcebergTableOpsProvider.class); + + public static final String GRAVITINO_BASE_ICEBERG_TABLE_OPS_PROVIDER_NAME = + "gravitino-based-provider"; + private final AtomicReference<GravitinoMetalake> metalakeWrapper = new AtomicReference<>(); + + private String gravitinoUri; + + private String gravitinoMetalake; + + @Override + public void initialize(Map<String, String> properties) { + String uri = IcebergConstants.GRAVITINO_URI; + String metalake = IcebergConstants.GRAVITINO_METALAKE; + + Preconditions.checkArgument( + StringUtils.isNotBlank(uri), IcebergConstants.GRAVITINO_URI + " is blank"); + Preconditions.checkArgument( + StringUtils.isNotBlank(metalake), IcebergConstants.GRAVITINO_METALAKE + " is blank"); + + this.gravitinoUri = uri; + this.gravitinoMetalake = metalake; + } + + @Override + public IcebergTableOps getIcebergTableOps(String catalogName) { + Preconditions.checkArgument( + StringUtils.isNotBlank(catalogName), "blank catalogName is illegal"); + Preconditions.checkArgument( + !IcebergConstants.GRAVITINO_DEFAULT_CATALOG.equals(catalogName), + IcebergConstants.GRAVITINO_DEFAULT_CATALOG + " is illegal in gravitino-based-provider"); + + Catalog catalog = getMetalake().loadCatalog(catalogName); + + Preconditions.checkArgument( + "lakehouse-iceberg".equals(catalog.provider()), + String.format("%s.%s is not iceberg catalog", getMetalake(), catalogName)); + + Map<String, String> properties = + IcebergPropertiesUtils.toIcebergCatalogProperties(catalog.properties()); + return new IcebergTableOps(new IcebergConfig(properties)); + } + + public GravitinoMetalake getMetalake() { Review Comment: close it in `close()` method? -- 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
