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new 5f963efed97 Add FederationMetaDataRefresher for create alter and drop
view (#32229)
5f963efed97 is described below
commit 5f963efed97ae4194873413a3c166583ad738660
Author: Haoran Meng <[email protected]>
AuthorDate: Tue Jul 23 10:53:03 2024 +0800
Add FederationMetaDataRefresher for create alter and drop view (#32229)
* Add FederationMetaDataRefresher for create alter and drop view
* Add FederationMetaDataRefresher for DriverExecuteExecutor
---
.../executor/engine/DriverExecuteExecutor.java | 10 ++++
.../sqlfederation/engine/SQLFederationEngine.java | 9 ++++
.../refresher/FederationMetaDataRefresher.java | 48 +++++++++++++++++
.../metadata/refresher/MetaDataRefreshEngine.java | 29 +++++++++++
.../AlterViewFederationMetaDataRefresher.java | 60 ++++++++++++++++++++++
.../CreateViewFederationMetaDataRefresher.java | 47 +++++++++++++++++
.../DropViewFederationMetaDataRefresher.java | 47 +++++++++++++++++
....metadata.refresher.FederationMetaDataRefresher | 20 ++++++++
.../proxy/backend/connector/DatabaseConnector.java | 13 ++++-
9 files changed, 281 insertions(+), 2 deletions(-)
diff --git
a/jdbc/src/main/java/org/apache/shardingsphere/driver/executor/engine/DriverExecuteExecutor.java
b/jdbc/src/main/java/org/apache/shardingsphere/driver/executor/engine/DriverExecuteExecutor.java
index e1a35717c48..e39a9e54706 100644
---
a/jdbc/src/main/java/org/apache/shardingsphere/driver/executor/engine/DriverExecuteExecutor.java
+++
b/jdbc/src/main/java/org/apache/shardingsphere/driver/executor/engine/DriverExecuteExecutor.java
@@ -36,6 +36,7 @@ import
org.apache.shardingsphere.infra.metadata.ShardingSphereMetaData;
import
org.apache.shardingsphere.infra.metadata.database.ShardingSphereDatabase;
import
org.apache.shardingsphere.infra.rule.attribute.raw.RawExecutionRuleAttribute;
import org.apache.shardingsphere.infra.session.query.QueryContext;
+import org.apache.shardingsphere.mode.metadata.refresher.MetaDataRefreshEngine;
import org.apache.shardingsphere.sqlfederation.engine.SQLFederationEngine;
import
org.apache.shardingsphere.sqlfederation.executor.context.SQLFederationContext;
@@ -94,6 +95,11 @@ public final class DriverExecuteExecutor {
new
ExecuteQueryCallbackFactory(prepareEngine.getType()).newInstance(database,
queryContext), new SQLFederationContext(false, queryContext, metaData,
connection.getProcessId()));
return null != resultSet;
}
+ MetaDataRefreshEngine metaDataRefreshEngine =
getMetaDataRefreshEngine(database);
+ if (sqlFederationEngine.enabled() &&
metaDataRefreshEngine.isFederation(queryContext.getSqlStatementContext())) {
+
metaDataRefreshEngine.refresh(queryContext.getSqlStatementContext());
+ return true;
+ }
ExecutionContext executionContext =
new KernelProcessor().generateExecutionContext(queryContext,
metaData.getGlobalRuleMetaData(), metaData.getProps(),
connection.getDatabaseConnectionManager().getConnectionContext());
if
(database.getRuleMetaData().getAttributes(RawExecutionRuleAttribute.class).isEmpty())
{
@@ -104,6 +110,10 @@ public final class DriverExecuteExecutor {
return rawPushDownExecutor.execute(database, executionContext);
}
+ private MetaDataRefreshEngine getMetaDataRefreshEngine(final
ShardingSphereDatabase database) {
+ return new
MetaDataRefreshEngine(connection.getContextManager().getPersistServiceFacade().getMetaDataManagerPersistService(),
database, metaData.getProps());
+ }
+
/**
* Get result set.
*
diff --git
a/kernel/sql-federation/core/src/main/java/org/apache/shardingsphere/sqlfederation/engine/SQLFederationEngine.java
b/kernel/sql-federation/core/src/main/java/org/apache/shardingsphere/sqlfederation/engine/SQLFederationEngine.java
index 4366c2fdc4c..3816e900109 100644
---
a/kernel/sql-federation/core/src/main/java/org/apache/shardingsphere/sqlfederation/engine/SQLFederationEngine.java
+++
b/kernel/sql-federation/core/src/main/java/org/apache/shardingsphere/sqlfederation/engine/SQLFederationEngine.java
@@ -121,6 +121,15 @@ public final class SQLFederationEngine implements
AutoCloseable {
sqlFederationRule =
metaData.getGlobalRuleMetaData().getSingleRule(SQLFederationRule.class);
}
+ /**
+ * SQL federation enabled or not.
+ *
+ * @return enabled or not
+ */
+ public boolean enabled() {
+ return sqlFederationRule.getConfiguration().isSqlFederationEnabled();
+ }
+
/**
* Decide use SQL federation or not.
*
diff --git
a/mode/core/src/main/java/org/apache/shardingsphere/mode/metadata/refresher/FederationMetaDataRefresher.java
b/mode/core/src/main/java/org/apache/shardingsphere/mode/metadata/refresher/FederationMetaDataRefresher.java
new file mode 100644
index 00000000000..fffbf7d12e3
--- /dev/null
+++
b/mode/core/src/main/java/org/apache/shardingsphere/mode/metadata/refresher/FederationMetaDataRefresher.java
@@ -0,0 +1,48 @@
+/*
+ * 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.shardingsphere.mode.metadata.refresher;
+
+import org.apache.shardingsphere.infra.database.core.type.DatabaseType;
+import
org.apache.shardingsphere.infra.metadata.database.ShardingSphereDatabase;
+import org.apache.shardingsphere.infra.spi.annotation.SingletonSPI;
+import org.apache.shardingsphere.infra.spi.type.typed.TypedSPI;
+import
org.apache.shardingsphere.mode.persist.service.MetaDataManagerPersistService;
+import
org.apache.shardingsphere.sql.parser.statement.core.statement.SQLStatement;
+
+/**
+ * Meta data refresher for federation.
+ *
+ * @param <T> type of SQL statement
+ */
+@SingletonSPI
+public interface FederationMetaDataRefresher<T extends SQLStatement> extends
TypedSPI {
+
+ /**
+ * Refresh schema.
+ *
+ * @param metaDataManagerPersistService meta data manager persist service
+ * @param database database
+ * @param schemaName schema name
+ * @param databaseType database type
+ * @param sqlStatement SQL statement
+ */
+ void refresh(MetaDataManagerPersistService metaDataManagerPersistService,
ShardingSphereDatabase database, String schemaName, DatabaseType databaseType,
T sqlStatement);
+
+ @Override
+ Class<T> getType();
+}
diff --git
a/mode/core/src/main/java/org/apache/shardingsphere/mode/metadata/refresher/MetaDataRefreshEngine.java
b/mode/core/src/main/java/org/apache/shardingsphere/mode/metadata/refresher/MetaDataRefreshEngine.java
index cbb2df70e80..e4bac058e0a 100644
---
a/mode/core/src/main/java/org/apache/shardingsphere/mode/metadata/refresher/MetaDataRefreshEngine.java
+++
b/mode/core/src/main/java/org/apache/shardingsphere/mode/metadata/refresher/MetaDataRefreshEngine.java
@@ -76,4 +76,33 @@ public final class MetaDataRefreshEngine {
}
IGNORED_SQL_STATEMENT_CLASSES.add(sqlStatementClass);
}
+
+ /**
+ * Refresh meta data for federation.
+ *
+ * @param sqlStatementContext SQL statement context
+ */
+ @SuppressWarnings("unchecked")
+ public void refresh(final SQLStatementContext sqlStatementContext) {
+
getFederationMetaDataRefresher(sqlStatementContext).ifPresent(federationMetaDataRefresher
-> {
+ String schemaName = ((TableAvailable)
sqlStatementContext).getTablesContext().getSchemaName()
+ .orElseGet(() -> new
DatabaseTypeRegistry(sqlStatementContext.getDatabaseType()).getDefaultSchemaName(database.getName())).toLowerCase();
+ federationMetaDataRefresher.refresh(metaDataManagerPersistService,
database, schemaName, sqlStatementContext.getDatabaseType(),
sqlStatementContext.getSqlStatement());
+ });
+ }
+
+ /**
+ * SQL statement is federation or not.
+ *
+ * @param sqlStatementContext SQL statement context
+ * @return is federation or not
+ */
+ public boolean isFederation(final SQLStatementContext sqlStatementContext)
{
+ return getFederationMetaDataRefresher(sqlStatementContext).isPresent();
+ }
+
+ private Optional<FederationMetaDataRefresher>
getFederationMetaDataRefresher(final SQLStatementContext sqlStatementContext) {
+ Class<? extends SQLStatement> sqlStatementClass =
sqlStatementContext.getSqlStatement().getClass();
+ return TypedSPILoader.findService(FederationMetaDataRefresher.class,
sqlStatementClass.getSuperclass());
+ }
}
diff --git
a/mode/core/src/main/java/org/apache/shardingsphere/mode/metadata/refresher/type/view/federation/AlterViewFederationMetaDataRefresher.java
b/mode/core/src/main/java/org/apache/shardingsphere/mode/metadata/refresher/type/view/federation/AlterViewFederationMetaDataRefresher.java
new file mode 100644
index 00000000000..e867403d14c
--- /dev/null
+++
b/mode/core/src/main/java/org/apache/shardingsphere/mode/metadata/refresher/type/view/federation/AlterViewFederationMetaDataRefresher.java
@@ -0,0 +1,60 @@
+/*
+ * 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.shardingsphere.mode.metadata.refresher.type.view.federation;
+
+import org.apache.shardingsphere.infra.database.core.type.DatabaseType;
+import
org.apache.shardingsphere.infra.metadata.database.ShardingSphereDatabase;
+import
org.apache.shardingsphere.infra.metadata.database.schema.model.ShardingSphereView;
+import
org.apache.shardingsphere.infra.metadata.database.schema.pojo.AlterSchemaMetaDataPOJO;
+import
org.apache.shardingsphere.mode.metadata.refresher.FederationMetaDataRefresher;
+import
org.apache.shardingsphere.mode.metadata.refresher.util.TableRefreshUtils;
+import
org.apache.shardingsphere.mode.persist.service.MetaDataManagerPersistService;
+import
org.apache.shardingsphere.sql.parser.statement.core.segment.generic.table.SimpleTableSegment;
+import
org.apache.shardingsphere.sql.parser.statement.core.statement.ddl.AlterViewStatement;
+
+import java.util.Optional;
+
+/**
+ * Meta data refresher for alter view statement.
+ */
+public final class AlterViewFederationMetaDataRefresher implements
FederationMetaDataRefresher<AlterViewStatement> {
+
+ @Override
+ public void refresh(final MetaDataManagerPersistService
metaDataManagerPersistService, final ShardingSphereDatabase database, final
String schemaName,
+ final DatabaseType databaseType, final
AlterViewStatement sqlStatement) {
+ String viewName = TableRefreshUtils.getTableName(databaseType,
sqlStatement.getView().getTableName().getIdentifier());
+ AlterSchemaMetaDataPOJO alterSchemaMetaDataPOJO = new
AlterSchemaMetaDataPOJO(database.getName(), schemaName);
+ Optional<SimpleTableSegment> renameView = sqlStatement.getRenameView();
+ if (renameView.isPresent()) {
+ String renameViewName =
renameView.get().getTableName().getIdentifier().getValue();
+ String originalView =
database.getSchema(schemaName).getView(viewName).getViewDefinition();
+ alterSchemaMetaDataPOJO.getAlteredViews().add(new
ShardingSphereView(renameViewName, originalView));
+ alterSchemaMetaDataPOJO.getDroppedViews().add(viewName);
+ }
+ Optional<String> viewDefinition = sqlStatement.getViewDefinition();
+ if (viewDefinition.isPresent()) {
+ alterSchemaMetaDataPOJO.getAlteredViews().add(new
ShardingSphereView(viewName, viewDefinition.get()));
+ }
+
metaDataManagerPersistService.alterSchemaMetaData(alterSchemaMetaDataPOJO);
+ }
+
+ @Override
+ public Class<AlterViewStatement> getType() {
+ return AlterViewStatement.class;
+ }
+}
diff --git
a/mode/core/src/main/java/org/apache/shardingsphere/mode/metadata/refresher/type/view/federation/CreateViewFederationMetaDataRefresher.java
b/mode/core/src/main/java/org/apache/shardingsphere/mode/metadata/refresher/type/view/federation/CreateViewFederationMetaDataRefresher.java
new file mode 100644
index 00000000000..306f7e38434
--- /dev/null
+++
b/mode/core/src/main/java/org/apache/shardingsphere/mode/metadata/refresher/type/view/federation/CreateViewFederationMetaDataRefresher.java
@@ -0,0 +1,47 @@
+/*
+ * 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.shardingsphere.mode.metadata.refresher.type.view.federation;
+
+import org.apache.shardingsphere.infra.database.core.type.DatabaseType;
+import
org.apache.shardingsphere.infra.metadata.database.ShardingSphereDatabase;
+import
org.apache.shardingsphere.infra.metadata.database.schema.model.ShardingSphereView;
+import
org.apache.shardingsphere.infra.metadata.database.schema.pojo.AlterSchemaMetaDataPOJO;
+import
org.apache.shardingsphere.mode.metadata.refresher.FederationMetaDataRefresher;
+import
org.apache.shardingsphere.mode.metadata.refresher.util.TableRefreshUtils;
+import
org.apache.shardingsphere.mode.persist.service.MetaDataManagerPersistService;
+import
org.apache.shardingsphere.sql.parser.statement.core.statement.ddl.CreateViewStatement;
+
+/**
+ * Meta data refresher for create view statement.
+ */
+public final class CreateViewFederationMetaDataRefresher implements
FederationMetaDataRefresher<CreateViewStatement> {
+
+ @Override
+ public void refresh(final MetaDataManagerPersistService
metaDataManagerPersistService, final ShardingSphereDatabase database, final
String schemaName,
+ final DatabaseType databaseType, final
CreateViewStatement sqlStatement) {
+ String viewName = TableRefreshUtils.getTableName(databaseType,
sqlStatement.getView().getTableName().getIdentifier());
+ AlterSchemaMetaDataPOJO alterSchemaMetaDataPOJO = new
AlterSchemaMetaDataPOJO(database.getName(), schemaName);
+ alterSchemaMetaDataPOJO.getAlteredViews().add(new
ShardingSphereView(viewName, sqlStatement.getViewDefinition()));
+
metaDataManagerPersistService.alterSchemaMetaData(alterSchemaMetaDataPOJO);
+ }
+
+ @Override
+ public Class<CreateViewStatement> getType() {
+ return CreateViewStatement.class;
+ }
+}
diff --git
a/mode/core/src/main/java/org/apache/shardingsphere/mode/metadata/refresher/type/view/federation/DropViewFederationMetaDataRefresher.java
b/mode/core/src/main/java/org/apache/shardingsphere/mode/metadata/refresher/type/view/federation/DropViewFederationMetaDataRefresher.java
new file mode 100644
index 00000000000..2238f726ba5
--- /dev/null
+++
b/mode/core/src/main/java/org/apache/shardingsphere/mode/metadata/refresher/type/view/federation/DropViewFederationMetaDataRefresher.java
@@ -0,0 +1,47 @@
+/*
+ * 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.shardingsphere.mode.metadata.refresher.type.view.federation;
+
+import org.apache.shardingsphere.infra.database.core.type.DatabaseType;
+import
org.apache.shardingsphere.infra.metadata.database.ShardingSphereDatabase;
+import
org.apache.shardingsphere.infra.metadata.database.schema.pojo.AlterSchemaMetaDataPOJO;
+import
org.apache.shardingsphere.mode.metadata.refresher.FederationMetaDataRefresher;
+import
org.apache.shardingsphere.mode.persist.service.MetaDataManagerPersistService;
+import
org.apache.shardingsphere.sql.parser.statement.core.statement.ddl.DropViewStatement;
+
+/**
+ * Meta data refresher for drop view statement.
+ */
+public final class DropViewFederationMetaDataRefresher implements
FederationMetaDataRefresher<DropViewStatement> {
+
+ @Override
+ public void refresh(final MetaDataManagerPersistService
metaDataManagerPersistService, final ShardingSphereDatabase database,
+ final String schemaName, final DatabaseType
databaseType, final DropViewStatement sqlStatement) {
+ AlterSchemaMetaDataPOJO alterSchemaMetaDataPOJO = new
AlterSchemaMetaDataPOJO(database.getName(), schemaName);
+ sqlStatement.getViews().forEach(each -> {
+ String viewName = each.getTableName().getIdentifier().getValue();
+ alterSchemaMetaDataPOJO.getDroppedViews().add(viewName);
+ });
+
metaDataManagerPersistService.alterSchemaMetaData(alterSchemaMetaDataPOJO);
+ }
+
+ @Override
+ public Class<DropViewStatement> getType() {
+ return DropViewStatement.class;
+ }
+}
diff --git
a/mode/core/src/main/resources/META-INF/services/org.apache.shardingsphere.mode.metadata.refresher.FederationMetaDataRefresher
b/mode/core/src/main/resources/META-INF/services/org.apache.shardingsphere.mode.metadata.refresher.FederationMetaDataRefresher
new file mode 100644
index 00000000000..9e296836bfa
--- /dev/null
+++
b/mode/core/src/main/resources/META-INF/services/org.apache.shardingsphere.mode.metadata.refresher.FederationMetaDataRefresher
@@ -0,0 +1,20 @@
+#
+# 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.
+#
+
+org.apache.shardingsphere.mode.metadata.refresher.type.view.federation.CreateViewFederationMetaDataRefresher
+org.apache.shardingsphere.mode.metadata.refresher.type.view.federation.AlterViewFederationMetaDataRefresher
+org.apache.shardingsphere.mode.metadata.refresher.type.view.federation.DropViewFederationMetaDataRefresher
diff --git
a/proxy/backend/core/src/main/java/org/apache/shardingsphere/proxy/backend/connector/DatabaseConnector.java
b/proxy/backend/core/src/main/java/org/apache/shardingsphere/proxy/backend/connector/DatabaseConnector.java
index ea4b7693487..0659cf212a2 100644
---
a/proxy/backend/core/src/main/java/org/apache/shardingsphere/proxy/backend/connector/DatabaseConnector.java
+++
b/proxy/backend/core/src/main/java/org/apache/shardingsphere/proxy/backend/connector/DatabaseConnector.java
@@ -167,6 +167,11 @@ public final class DatabaseConnector implements
DatabaseBackendHandler {
ResultSet resultSet = doExecuteFederation(queryContext,
metaDataContexts);
return processExecuteFederation(resultSet, metaDataContexts);
}
+ MetaDataRefreshEngine metaDataRefreshEngine =
getMetaDataRefreshEngine();
+ if (proxySQLExecutor.getSqlFederationEngine().enabled() &&
metaDataRefreshEngine.isFederation(queryContext.getSqlStatementContext())) {
+
metaDataRefreshEngine.refresh(queryContext.getSqlStatementContext());
+ return new
UpdateResponseHeader(queryContext.getSqlStatementContext().getSqlStatement());
+ }
ExecutionContext executionContext = generateExecutionContext();
return
isNeedImplicitCommitTransaction(queryContext.getSqlStatementContext().getSqlStatement(),
executionContext.getExecutionUnits().size() > 1)
? doExecuteWithImplicitCommitTransaction(() ->
doExecute(executionContext))
@@ -280,9 +285,13 @@ public final class DatabaseConnector implements
DatabaseBackendHandler {
}
private void refreshMetaData(final ExecutionContext executionContext)
throws SQLException {
+
getMetaDataRefreshEngine().refresh(queryContext.getSqlStatementContext(),
executionContext.getRouteContext().getRouteUnits());
+ }
+
+ private MetaDataRefreshEngine getMetaDataRefreshEngine() {
ContextManager contextManager =
ProxyContext.getInstance().getContextManager();
- new
MetaDataRefreshEngine(contextManager.getPersistServiceFacade().getMetaDataManagerPersistService(),
queryContext.getUsedDatabase(),
-
contextManager.getMetaDataContexts().getMetaData().getProps()).refresh(queryContext.getSqlStatementContext(),
executionContext.getRouteContext().getRouteUnits());
+ return new
MetaDataRefreshEngine(contextManager.getPersistServiceFacade().getMetaDataManagerPersistService(),
queryContext.getUsedDatabase(),
+ contextManager.getMetaDataContexts().getMetaData().getProps());
}
private QueryResponseHeader processExecuteQuery(final SQLStatementContext
sqlStatementContext, final List<QueryResult> queryResults, final QueryResult
queryResultSample) throws SQLException {
