This is an automated email from the ASF dual-hosted git repository.
zhaojinchao pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/shardingsphere.git
The following commit(s) were added to refs/heads/master by this push:
new ce0fd0879e1 Add new global rule RAL backend handler for new metadata
structure (#26444)
ce0fd0879e1 is described below
commit ce0fd0879e14e9551b77783f15f746f91cefb14a
Author: ChenJiaHao <[email protected]>
AuthorDate: Tue Jun 20 13:27:20 2023 +0800
Add new global rule RAL backend handler for new metadata structure (#26444)
* Add new global rule RAL backend handler for new metadata structure
* Update comments
* Fix code style
---
.../NewUpdatableGlobalRuleRALBackendHandler.java | 77 ++++++++++++++++++++++
.../distsql/ral/RALBackendHandlerFactory.java | 4 ++
2 files changed, 81 insertions(+)
diff --git
a/proxy/backend/core/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/ral/NewUpdatableGlobalRuleRALBackendHandler.java
b/proxy/backend/core/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/ral/NewUpdatableGlobalRuleRALBackendHandler.java
new file mode 100644
index 00000000000..135c0cfc62d
--- /dev/null
+++
b/proxy/backend/core/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/ral/NewUpdatableGlobalRuleRALBackendHandler.java
@@ -0,0 +1,77 @@
+/*
+ * 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.proxy.backend.handler.distsql.ral;
+
+import
org.apache.shardingsphere.distsql.handler.exception.rule.MissingRequiredRuleException;
+import
org.apache.shardingsphere.distsql.handler.ral.update.GlobalRuleRALUpdater;
+import org.apache.shardingsphere.distsql.parser.statement.ral.RALStatement;
+import
org.apache.shardingsphere.distsql.parser.statement.ral.UpdatableGlobalRuleRALStatement;
+import org.apache.shardingsphere.infra.config.rule.RuleConfiguration;
+import org.apache.shardingsphere.infra.util.spi.type.typed.TypedSPILoader;
+import org.apache.shardingsphere.mode.manager.ContextManager;
+import org.apache.shardingsphere.proxy.backend.context.ProxyContext;
+import
org.apache.shardingsphere.proxy.backend.handler.distsql.DistSQLBackendHandler;
+import org.apache.shardingsphere.proxy.backend.response.header.ResponseHeader;
+import
org.apache.shardingsphere.proxy.backend.response.header.update.UpdateResponseHeader;
+
+import java.util.Collection;
+
+/**
+ * New updatable RAL backend handler for global rule.
+ */
+public final class NewUpdatableGlobalRuleRALBackendHandler implements
DistSQLBackendHandler {
+
+ private final UpdatableGlobalRuleRALStatement sqlStatement;
+
+ public NewUpdatableGlobalRuleRALBackendHandler(final
UpdatableGlobalRuleRALStatement sqlStatement) {
+ this.sqlStatement = sqlStatement;
+ }
+
+ @SuppressWarnings({"rawtypes", "unchecked"})
+ @Override
+ public ResponseHeader execute() {
+ GlobalRuleRALUpdater globalRuleUpdater =
TypedSPILoader.getService(GlobalRuleRALUpdater.class,
sqlStatement.getClass().getName());
+ Class<? extends RuleConfiguration> ruleConfigClass =
globalRuleUpdater.getRuleConfigurationClass();
+ ContextManager contextManager =
ProxyContext.getInstance().getContextManager();
+ Collection<RuleConfiguration> ruleConfigurations =
contextManager.getMetaDataContexts().getMetaData().getGlobalRuleMetaData().getConfigurations();
+ RuleConfiguration currentRuleConfig =
findCurrentRuleConfiguration(ruleConfigurations, ruleConfigClass);
+ globalRuleUpdater.checkSQLStatement(currentRuleConfig, sqlStatement);
+ contextManager.getInstanceContext().getModeContextManager()
+
.alterGlobalRuleConfiguration(processUpdate(ruleConfigurations, sqlStatement,
globalRuleUpdater, currentRuleConfig));
+ // TODO switch active version
+ return new UpdateResponseHeader(sqlStatement);
+ }
+
+ private RuleConfiguration findCurrentRuleConfiguration(final
Collection<RuleConfiguration> ruleConfigurations, final Class<? extends
RuleConfiguration> ruleConfigClass) {
+ for (RuleConfiguration each : ruleConfigurations) {
+ if (ruleConfigClass.isAssignableFrom(each.getClass())) {
+ return each;
+ }
+ }
+ throw new
MissingRequiredRuleException(ruleConfigClass.getSimpleName());
+ }
+
+ @SuppressWarnings({"rawtypes", "unchecked"})
+ private RuleConfiguration processUpdate(final
Collection<RuleConfiguration> ruleConfigurations, final RALStatement
sqlStatement, final GlobalRuleRALUpdater globalRuleUpdater,
+ final
RuleConfiguration currentRuleConfig) {
+ RuleConfiguration result =
globalRuleUpdater.buildAlteredRuleConfiguration(currentRuleConfig,
sqlStatement);
+ ruleConfigurations.remove(currentRuleConfig);
+ ruleConfigurations.add(result);
+ return result;
+ }
+}
diff --git
a/proxy/backend/core/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/ral/RALBackendHandlerFactory.java
b/proxy/backend/core/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/ral/RALBackendHandlerFactory.java
index bdca8ad7753..428e3b63901 100644
---
a/proxy/backend/core/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/ral/RALBackendHandlerFactory.java
+++
b/proxy/backend/core/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/ral/RALBackendHandlerFactory.java
@@ -23,6 +23,7 @@ import
org.apache.shardingsphere.distsql.parser.statement.ral.QueryableRALStatem
import org.apache.shardingsphere.distsql.parser.statement.ral.RALStatement;
import
org.apache.shardingsphere.distsql.parser.statement.ral.UpdatableGlobalRuleRALStatement;
import
org.apache.shardingsphere.distsql.parser.statement.ral.UpdatableRALStatement;
+import org.apache.shardingsphere.proxy.backend.context.ProxyContext;
import org.apache.shardingsphere.proxy.backend.handler.ProxyBackendHandler;
import org.apache.shardingsphere.proxy.backend.session.ConnectionSession;
@@ -44,6 +45,9 @@ public final class RALBackendHandlerFactory {
return new QueryableRALBackendHandler<>((QueryableRALStatement)
sqlStatement, connectionSession);
}
if (sqlStatement instanceof UpdatableGlobalRuleRALStatement) {
+ if
("New_Cluster".equals(ProxyContext.getInstance().getContextManager().getInstanceContext().getModeConfiguration().getType()))
{
+ return new
NewUpdatableGlobalRuleRALBackendHandler((UpdatableGlobalRuleRALStatement)
sqlStatement);
+ }
return new
UpdatableGlobalRuleRALBackendHandler((UpdatableGlobalRuleRALStatement)
sqlStatement);
}
return new UpdatableRALBackendHandler<>((UpdatableRALStatement)
sqlStatement, connectionSession);
