improve(flink): Support create third-party connectors using gravitino connector

docs/flink-connector/flink-connector.md

@@ -35,8 +35,11 @@ This capability allows users to perform federation queries, accessing data from
 | table.catalog-store.kind                         | string | generic_in_memory | The Catalog Store name, it should set to `gravitino`.                | Yes      | 0.6.0-incubating |
 | table.catalog-store.gravitino.gravitino.metalake | string | (none)            | The metalake name that flink connector used to request to Gravitino. | Yes      | 0.6.0-incubating |
 | table.catalog-store.gravitino.gravitino.uri      | string | (none)            | The uri of Gravitino server address.                                 | Yes      | 0.6.0-incubating |
+| table.catalog-store.gravitino.gravitino.allow.third-party-connector.list | string | (none) | List of allowed third-party connectors, separated by commas. | No | 1.3.0            |
 | table.catalog-store.gravitino.gravitino.client.  | string | (none)            | The configuration key prefix for the Gravitino client config.        | No       | 1.0.0            |
 
+The `table.catalog-store.gravitino.gravitino.allow.third-party-connector.list` configuration allows you to specify a comma-separated list of catalog types. Catalogs created with these types will be stored in Flink's in-memory catalog store and will not be managed by Gravitino. This is useful for using standard Flink connectors (like `jdbc`, `hive`) that you do not wish to be governed by Gravitino.
+
 To configure the Gravitino client, use properties prefixed with `table.catalog-store.gravitino.gravitino.client.`. These properties will be passed to the Gravitino client after removing the `table.catalog-store.gravitino.` prefix.
 
 **Example:** Setting `table.catalog-store.gravitino.gravitino.client.socketTimeoutMs` is equivalent to setting `gravitino.client.socketTimeoutMs` for the Gravitino client.
@@ -48,6 +51,7 @@ Set the flink configuration in flink-conf.yaml.
 table.catalog-store.kind: gravitino
 table.catalog-store.gravitino.gravitino.metalake: metalake_demo
 table.catalog-store.gravitino.gravitino.uri: http://localhost:8090
+table.catalog-store.gravitino.gravitino.allow.third-party-connector.list: hive,jdbc
 table.catalog-store.gravitino.gravitino.client.socketTimeoutMs: 60000
 table.catalog-store.gravitino.gravitino.client.connectionTimeoutMs: 60000
 ```
@@ -57,6 +61,7 @@ final Configuration configuration = new Configuration();
 configuration.setString("table.catalog-store.kind", "gravitino");
 configuration.setString("table.catalog-store.gravitino.gravitino.metalake", "metalake_demo");
 configuration.setString("table.catalog-store.gravitino.gravitino.uri", "http://localhost:8090");
+configuration.setString("table.catalog-store.gravitino.gravitino.allow.third-party-connector.list", "hive,jdbc");
 configuration.setString("table.catalog-store.gravitino.gravitino.client.socketTimeoutMs", "60000");
 configuration.setString("table.catalog-store.gravitino.gravitino.client.connectionTimeoutMs", "60000");
 EnvironmentSettings.Builder builder = EnvironmentSettings.newInstance().withConfiguration(configuration);

flink-connector/flink/src/main/java/org/apache/gravitino/flink/connector/store/GravitinoCatalogStore.java

@@ -19,7 +19,9 @@
 
 package org.apache.gravitino.flink.connector.store;
 
+import com.google.common.collect.ImmutableList;
 import java.util.ArrayList;
+import java.util.HashSet;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
@@ -31,6 +33,7 @@
 import org.apache.flink.table.catalog.AbstractCatalogStore;
 import org.apache.flink.table.catalog.CatalogDescriptor;
 import org.apache.flink.table.catalog.CommonCatalogOptions;
+import org.apache.flink.table.catalog.GenericInMemoryCatalogStore;
 import org.apache.flink.table.catalog.exceptions.CatalogException;
 import org.apache.flink.table.factories.Factory;
 import org.apache.flink.util.Preconditions;
@@ -45,26 +48,43 @@
 /** GravitinoCatalogStore is used to store catalog information to Apache Gravitino server. */
 public class GravitinoCatalogStore extends AbstractCatalogStore {
   private static final Logger LOG = LoggerFactory.getLogger(GravitinoCatalogStore.class);
+  private final GenericInMemoryCatalogStore memoryCatalogStore;
   private final GravitinoCatalogManager gravitinoCatalogManager;
+  private final ImmutableList<String> allowThirdPartyConnectors;
 
-  public GravitinoCatalogStore(GravitinoCatalogManager catalogManager) {
-    this.gravitinoCatalogManager = catalogManager;
+  public GravitinoCatalogStore(
+      GravitinoCatalogManager catalogManager,
+      GenericInMemoryCatalogStore memoryCatalogStore,
+      List<String> allowThirdPartyConnectors) {
+    this.gravitinoCatalogManager =
+        Preconditions.checkNotNull(catalogManager, "CatalogManager cannot be null");
+    this.memoryCatalogStore =
+        Preconditions.checkNotNull(memoryCatalogStore, "MemoryCatalogStore cannot be null");
+    this.allowThirdPartyConnectors =
+        ImmutableList.copyOf(
+            Preconditions.checkNotNull(
+                allowThirdPartyConnectors, "AllowThirdPartyConnectors cannot be null"));
   }
 
   @Override
   public void storeCatalog(String catalogName, CatalogDescriptor descriptor)
       throws CatalogException {
-    Configuration configuration = descriptor.getConfiguration();
-    Map<String, String> gravitino = configuration.toMap();
-    BaseCatalogFactory catalogFactory = getCatalogFactory(gravitino);
-    Map<String, String> gravitinoProperties =
-        catalogFactory.catalogPropertiesConverter().toGravitinoCatalogProperties(configuration);
-    gravitinoCatalogManager.createCatalog(
-        catalogName,
-        catalogFactory.gravitinoCatalogType(),
-        null,
-        catalogFactory.gravitinoCatalogProvider(),
-        gravitinoProperties);
+    String catalogType = descriptor.getConfiguration().get(CommonCatalogOptions.CATALOG_TYPE);
+    if (isAllowThirdPartyConnector(catalogType)) {
+      memoryCatalogStore.storeCatalog(catalogName, descriptor);
+    } else {
+      Configuration configuration = descriptor.getConfiguration();
+      Map<String, String> gravitino = configuration.toMap();
+      BaseCatalogFactory catalogFactory = getCatalogFactory(gravitino);
+      Map<String, String> gravitinoProperties =
+          catalogFactory.catalogPropertiesConverter().toGravitinoCatalogProperties(configuration);
+      gravitinoCatalogManager.createCatalog(
+          catalogName,
+          catalogFactory.gravitinoCatalogType(),
+          null,
+          catalogFactory.gravitinoCatalogProvider(),
+          gravitinoProperties);
+    }
   }
   /**
    * Removes the specified catalog.
@@ -75,13 +95,19 @@ public void storeCatalog(String catalogName, CatalogDescriptor descriptor)
    */
   @Override
   public void removeCatalog(String catalogName, boolean ignoreIfNotExists) throws CatalogException {
-    try {
-      boolean isDropped = gravitinoCatalogManager.dropCatalog(catalogName);
-      if (!ignoreIfNotExists && !isDropped) {
-        throw new CatalogException(String.format("Failed to remove the catalog: %s", catalogName));
+    if (memoryCatalogStore.contains(catalogName)) {
+      memoryCatalogStore.removeCatalog(catalogName, ignoreIfNotExists);
+    } else {
+      try {
+        boolean isDropped = gravitinoCatalogManager.dropCatalog(catalogName);
+        if (!ignoreIfNotExists && !isDropped) {
+          throw new CatalogException(
+              String.format("Failed to remove the catalog: %s", catalogName));
+        }
+      } catch (Exception e) {
+        throw new CatalogException(
+            String.format("Failed to remove the catalog: %s", catalogName), e);
       }
-    } catch (Exception e) {
-      throw new CatalogException(String.format("Failed to remove the catalog: %s", catalogName), e);
     }
   }
 
@@ -94,6 +120,12 @@ public void removeCatalog(String catalogName, boolean ignoreIfNotExists) throws
    */
   @Override
   public Optional<CatalogDescriptor> getCatalog(String catalogName) throws CatalogException {
+    if (memoryCatalogStore.contains(catalogName)) {
+      Optional<CatalogDescriptor> descriptor = memoryCatalogStore.getCatalog(catalogName);
+      if (descriptor.isPresent()) {
+        return descriptor;
+      }
+    }
     try {
       Catalog catalog = gravitinoCatalogManager.getGravitinoCatalogInfo(catalogName);
       BaseCatalogFactory catalogFactory = getCatalogFactory(catalog.provider());
@@ -113,16 +145,20 @@ public Optional<CatalogDescriptor> getCatalog(String catalogName) throws Catalog
 
   @Override
   public Set<String> listCatalogs() throws CatalogException {
+    Set<String> catalogs = new HashSet<>();
+    catalogs.addAll(memoryCatalogStore.listCatalogs());
     try {
-      return gravitinoCatalogManager.listCatalogs();
+      catalogs.addAll(gravitinoCatalogManager.listCatalogs());
     } catch (Exception e) {
       throw new CatalogException("Failed to list catalog.", e);
     }
+    return catalogs;
   }
 
   @Override
   public boolean contains(String catalogName) throws CatalogException {
-    return gravitinoCatalogManager.contains(catalogName);
+    return memoryCatalogStore.contains(catalogName)
+        || gravitinoCatalogManager.contains(catalogName);
   }
 
   private BaseCatalogFactory getCatalogFactory(Map<String, String> configuration) {
@@ -176,4 +212,8 @@ private BaseCatalogFactory discoverFactories(Predicate<Factory> predicate, Strin
     }
     return (BaseCatalogFactory) factories.get(0);
   }
+
+  private boolean isAllowThirdPartyConnector(String type) {
+    return allowThirdPartyConnectors.contains(type);
+  }
 }

flink-connector/flink/src/main/java/org/apache/gravitino/flink/connector/store/GravitinoCatalogStoreFactory.java

@@ -21,36 +21,48 @@
 
 import static org.apache.flink.table.factories.FactoryUtil.createCatalogStoreFactoryHelper;
 import static org.apache.gravitino.flink.connector.store.GravitinoCatalogStoreFactoryOptions.GRAVITINO;
+import static org.apache.gravitino.flink.connector.store.GravitinoCatalogStoreFactoryOptions.GRAVITINO_ALLOW_THIRD_PARTY_CONNECTOR_LIST_CONFIG;
 import static org.apache.gravitino.flink.connector.store.GravitinoCatalogStoreFactoryOptions.GRAVITINO_CLIENT_CONFIG;
 import static org.apache.gravitino.flink.connector.store.GravitinoCatalogStoreFactoryOptions.GRAVITINO_METALAKE;
 import static org.apache.gravitino.flink.connector.store.GravitinoCatalogStoreFactoryOptions.GRAVITINO_URI;
 
 import com.google.common.annotations.VisibleForTesting;
 import com.google.common.base.Preconditions;
 import com.google.common.collect.ImmutableSet;
+import java.util.Arrays;
+import java.util.List;
 import java.util.Map;
+import java.util.Optional;
 import java.util.Set;
 import java.util.stream.Collectors;
 import org.apache.flink.configuration.ConfigOption;
 import org.apache.flink.configuration.ReadableConfig;
 import org.apache.flink.table.catalog.CatalogStore;
+import org.apache.flink.table.catalog.GenericInMemoryCatalogStore;
 import org.apache.flink.table.catalog.exceptions.CatalogException;
 import org.apache.flink.table.factories.CatalogStoreFactory;
 import org.apache.flink.table.factories.FactoryUtil;
 import org.apache.gravitino.client.GravitinoClientConfiguration;
 import org.apache.gravitino.flink.connector.catalog.GravitinoCatalogManager;
+import org.apache.gravitino.flink.connector.utils.FactoryUtils;
 
 /** The Factory for creating {@link GravitinoCatalogStore}. */
 public class GravitinoCatalogStoreFactory implements CatalogStoreFactory {
+
   private GravitinoCatalogManager catalogManager;
+  private GenericInMemoryCatalogStore memoryCatalogStore;
+  private List<String> allowThirdPartyConnectors;
 
   @Override
   public CatalogStore createCatalogStore() {
-    return new GravitinoCatalogStore(catalogManager);
+    return new GravitinoCatalogStore(catalogManager, memoryCatalogStore, allowThirdPartyConnectors);
   }
 
   @Override
   public void open(Context context) throws CatalogException {
+    this.memoryCatalogStore = new GenericInMemoryCatalogStore();
+    this.memoryCatalogStore.open();
+
     FactoryUtil.FactoryHelper<CatalogStoreFactory> factoryHelper =
         createCatalogStoreFactoryHelper(this, context);
     factoryHelper.validate();
@@ -64,13 +76,31 @@ public void open(Context context) throws CatalogException {
         "Both %s and %s must be set",
         GRAVITINO_URI.key(),
         GRAVITINO_METALAKE.key());
+    allowThirdPartyConnectors =
+        Arrays.asList(
+                Optional.ofNullable(options.get(GRAVITINO_ALLOW_THIRD_PARTY_CONNECTOR_LIST_CONFIG))
+                    .map(s -> s.split(","))
+                    .orElse(new String[] {}))
+            .stream()
+            .map(String::trim)
+            .filter(s -> !s.isEmpty())
+            .collect(Collectors.toList());
+
+    Preconditions.checkArgument(
+        allowThirdPartyConnectors.stream().noneMatch(FactoryUtils.GRAVITINO_FACTORY_LIST::contains),
+        "The allowed third party connectors %s should not contain Gravitino connectors %s.",
+        allowThirdPartyConnectors,
+        FactoryUtils.GRAVITINO_FACTORY_LIST);
 
     this.catalogManager =
         GravitinoCatalogManager.create(gravitinoUri, gravitinoName, extractClientConfig(options));
   }
 
   @Override
   public void close() throws CatalogException {
+    if (memoryCatalogStore != null) {
+      memoryCatalogStore.close();
+    }
     if (catalogManager != null) {
       catalogManager.close();
     }
@@ -88,7 +118,8 @@ public Set<ConfigOption<?>> requiredOptions() {
 
   @Override
   public Set<ConfigOption<?>> optionalOptions() {
-    return ImmutableSet.of(GRAVITINO_CLIENT_CONFIG);
+    return ImmutableSet.of(
+        GRAVITINO_CLIENT_CONFIG, GRAVITINO_ALLOW_THIRD_PARTY_CONNECTOR_LIST_CONFIG);
   }
 
   @VisibleForTesting

flink-connector/flink/src/main/java/org/apache/gravitino/flink/connector/store/GravitinoCatalogStoreFactoryOptions.java

@@ -40,7 +40,12 @@ private GravitinoCatalogStoreFactoryOptions() {}
           .stringType()
           .noDefaultValue()
           .withDescription("The name of Gravitino metalake");
-
+  public static final ConfigOption<String> GRAVITINO_ALLOW_THIRD_PARTY_CONNECTOR_LIST_CONFIG =
+      ConfigOptions.key("gravitino.allow.third-party-connector.list")
+          .stringType()
+          .noDefaultValue()
+          .withDescription(
+              "Comma-separated list of allowed third-party catalog types (handled by Flink's in-memory catalog store)");
   public static final ConfigOption<Map<String, String>> GRAVITINO_CLIENT_CONFIG =
       ConfigOptions.key("gravitino.client")
           .mapType()

flink-connector/flink/src/main/java/org/apache/gravitino/flink/connector/utils/FactoryUtils.java

@@ -21,12 +21,17 @@
 import static org.apache.flink.table.factories.FactoryUtil.validateFactoryOptions;
 import static org.apache.flink.table.factories.FactoryUtil.validateWatermarkOptions;
 
+import com.google.common.collect.ImmutableList;
 import java.util.HashSet;
 import java.util.Set;
 import java.util.stream.Collectors;
 import org.apache.flink.table.factories.CatalogFactory;
 import org.apache.flink.table.factories.Factory;
 import org.apache.flink.table.factories.FactoryUtil;
+import org.apache.gravitino.flink.connector.hive.GravitinoHiveCatalogFactoryOptions;
+import org.apache.gravitino.flink.connector.iceberg.GravitinoIcebergCatalogFactoryOptions;
+import org.apache.gravitino.flink.connector.jdbc.GravitinoJdbcCatalogFactoryOptions;
+import org.apache.gravitino.flink.connector.paimon.GravitinoPaimonCatalogFactoryOptions;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -36,6 +41,16 @@ private FactoryUtils() {}
 
   private static final Logger LOG = LoggerFactory.getLogger(FactoryUtils.class);
 
+  /** The list of Gravitino catalog factory identifiers. */
+  public static final ImmutableList<String> GRAVITINO_FACTORY_LIST =
+      ImmutableList.<String>builder()
+          .add(GravitinoHiveCatalogFactoryOptions.IDENTIFIER)
+          .add(GravitinoIcebergCatalogFactoryOptions.IDENTIFIER)
+          .add(GravitinoJdbcCatalogFactoryOptions.MYSQL_IDENTIFIER)
+          .add(GravitinoJdbcCatalogFactoryOptions.POSTGRESQL_IDENTIFIER)
+          .add(GravitinoPaimonCatalogFactoryOptions.IDENTIFIER)
+          .build();
+
   /**
    * Utility for working with {@link Factory}s. The {@link GravitinoCatalogFactoryHelper} override
    * the {@link FactoryUtil.CatalogFactoryHelper#validate()} method to validate the options. For the