Copilot commented on code in PR #12565:
URL: https://github.com/apache/gravitino/pull/12565#discussion_r3844595147
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core/src/main/java/org/apache/gravitino/GravitinoEnv.java:
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@@ -869,6 +883,15 @@ private void initGravitinoServerComponents() {
new ViewEventDispatcher(eventBus, viewNormalizeDispatcher);
this.viewDispatcher = viewEventDispatcher;
+ // Semantic Model operation chain: SemanticModelNormalizeDispatcher ->
+ // SemanticModelOperationDispatcher -> ManagedSemanticModelOperations.
+ // TODO: Add event and hook layers with Semantic Model server integration.
Review Comment:
New TODO introduced without an issue/PR reference. Project guidelines
discourage TODO/FIXME without a tracking ID; please link to an issue (e.g.,
follow-up for Semantic Model event/hook layers) or remove the TODO if it’s no
longer needed.
##########
core/src/main/java/org/apache/gravitino/catalog/SemanticModelOperationDispatcher.java:
##########
@@ -0,0 +1,152 @@
+/*
+ * 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.catalog;
+
+import com.google.common.base.Preconditions;
+import java.util.Arrays;
+import java.util.Map;
+import javax.annotation.Nullable;
+import org.apache.gravitino.Catalog;
+import org.apache.gravitino.EntityStore;
+import org.apache.gravitino.NameIdentifier;
+import org.apache.gravitino.Namespace;
+import org.apache.gravitino.exceptions.IllegalSemanticModelException;
+import org.apache.gravitino.exceptions.NoSuchSchemaException;
+import org.apache.gravitino.exceptions.NoSuchSemanticModelException;
+import org.apache.gravitino.exceptions.SemanticModelAlreadyExistsException;
+import org.apache.gravitino.lock.LockType;
+import org.apache.gravitino.lock.TreeLockUtils;
+import org.apache.gravitino.secret.SecretManager;
+import org.apache.gravitino.semantic.SemanticModel;
+import org.apache.gravitino.semantic.SemanticModelChange;
+import org.apache.gravitino.semantic.SemanticModelDefinition;
+import org.apache.gravitino.storage.IdGenerator;
+
+/** Dispatches always-managed Semantic Model operations to Gravitino's
EntityStore. */
+public class SemanticModelOperationDispatcher extends OperationDispatcher
+ implements SemanticModelDispatcher {
+
+ private final CatalogManager catalogManager;
+ private final SchemaDispatcher schemaDispatcher;
+ private final ManagedSemanticModelOperations managedOperations;
+
+ /**
+ * Creates a Semantic Model operation dispatcher.
+ *
+ * @param catalogManager The catalog manager.
+ * @param schemaDispatcher The internal schema dispatcher used for parent
validation.
+ * @param store The EntityStore used for Semantic Model persistence.
+ * @param idGenerator The stable entity ID generator.
+ * @param secretManager The secret manager required by the operation
dispatcher base class.
+ */
+ public SemanticModelOperationDispatcher(
+ CatalogManager catalogManager,
+ SchemaDispatcher schemaDispatcher,
+ EntityStore store,
+ IdGenerator idGenerator,
+ SecretManager secretManager) {
+ super(catalogManager, store, idGenerator, secretManager);
+ this.catalogManager = catalogManager;
+ this.schemaDispatcher = schemaDispatcher;
+ this.managedOperations = new ManagedSemanticModelOperations(store,
idGenerator);
+ }
+
+ @Override
+ public NameIdentifier[] listSemanticModels(Namespace namespace) throws
NoSuchSchemaException {
+ checkRelationalCatalog(namespace);
+ NameIdentifier schemaIdent = NameIdentifier.of(namespace.levels());
+ schemaDispatcher.loadSchema(schemaIdent);
+ return TreeLockUtils.doWithTreeLock(
+ schemaIdent, LockType.READ, () ->
managedOperations.listSemanticModels(namespace));
+ }
+
+ @Override
+ public SemanticModel loadSemanticModel(NameIdentifier ident) throws
NoSuchSemanticModelException {
+ checkRelationalCatalog(ident.namespace());
+ if (!schemaDispatcher.schemaExists(schemaIdentifier(ident))) {
+ throw new NoSuchSemanticModelException("Semantic Model %s does not
exist", ident);
+ }
+ return TreeLockUtils.doWithTreeLock(
+ ident, LockType.READ, () ->
managedOperations.loadSemanticModel(ident));
+ }
+
+ @Override
+ public SemanticModel createSemanticModel(
+ NameIdentifier ident,
+ @Nullable String comment,
+ SemanticModelDefinition definition,
+ Map<String, String> properties)
+ throws NoSuchSchemaException, SemanticModelAlreadyExistsException,
+ IllegalSemanticModelException {
+ Preconditions.checkArgument(definition != null, "Definition must not be
null");
+ Preconditions.checkArgument(properties != null, "Properties must not be
null");
+ checkRelationalCatalog(ident.namespace());
+ NameIdentifier schemaIdent = schemaIdentifier(ident);
+ schemaDispatcher.loadSchema(schemaIdent);
+ return TreeLockUtils.doWithTreeLock(
+ schemaIdent,
+ LockType.WRITE,
+ () -> managedOperations.createSemanticModel(ident, comment,
definition, properties));
+ }
+
+ @Override
+ public SemanticModel alterSemanticModel(NameIdentifier ident,
SemanticModelChange... changes)
+ throws NoSuchSemanticModelException, SemanticModelAlreadyExistsException,
+ IllegalSemanticModelException {
+ Preconditions.checkArgument(
+ changes != null && changes.length > 0, "At least one change is
required");
+ checkRelationalCatalog(ident.namespace());
+ NameIdentifier schemaIdent = schemaIdentifier(ident);
+ if (!schemaDispatcher.schemaExists(schemaIdent)) {
+ throw new NoSuchSemanticModelException("Semantic Model %s does not
exist", ident);
+ }
+
+ boolean renaming =
+ Arrays.stream(changes)
+ .anyMatch(change -> change instanceof
SemanticModelChange.RenameSemanticModel);
+ NameIdentifier lockIdent = renaming ? schemaIdent : ident;
+ return TreeLockUtils.doWithTreeLock(
+ lockIdent, LockType.WRITE, () ->
managedOperations.alterSemanticModel(ident, changes));
+ }
+
+ @Override
+ public boolean dropSemanticModel(NameIdentifier ident) {
+ checkRelationalCatalog(ident.namespace());
+ if (!schemaDispatcher.schemaExists(schemaIdentifier(ident))) {
+ return false;
+ }
+ return TreeLockUtils.doWithTreeLock(
+ ident, LockType.WRITE, () ->
managedOperations.dropSemanticModel(ident));
+ }
+
+ private void checkRelationalCatalog(Namespace namespace) {
+ NameIdentifier catalogIdent = NameIdentifier.of(namespace.level(0),
namespace.level(1));
+ Catalog catalog = catalogManager.loadCatalog(catalogIdent);
Review Comment:
`checkRelationalCatalog` builds `catalogIdent` by indexing
`namespace.level(0)` / `namespace.level(1)`. If a caller passes a namespace
with fewer than 2 levels (bad input), this will throw
`IndexOutOfBoundsException` instead of a consistent
`IllegalArgumentException`/`IllegalNameIdentifierException` like other
dispatchers. Consider deriving the catalog identifier via
`NameIdentifierUtil.getCatalogIdentifier(NameIdentifier.of(namespace.levels()))`
(or explicitly validating `namespace.length() >= 2`) to fail predictably with
a typed exception.
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