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new 19c5fd20685 add convert rule configuration provider for Single table.
(#30544)
19c5fd20685 is described below
commit 19c5fd20685bf7d9c3f95c541243941176912199
Author: Zonglei Dong <[email protected]>
AuthorDate: Thu Mar 21 12:41:09 2024 +0800
add convert rule configuration provider for Single table. (#30544)
---
.../handler/constant/SingleDistSQLConstants.java | 36 ++++++++++++++
.../SingleConvertRuleConfigurationProvider.java | 58 ++++++++++++++++++++++
...ry.ral.convert.ConvertRuleConfigurationProvider | 18 +++++++
3 files changed, 112 insertions(+)
diff --git
a/kernel/single/distsql/handler/src/main/java/org/apache/shardingsphere/single/distsql/handler/constant/SingleDistSQLConstants.java
b/kernel/single/distsql/handler/src/main/java/org/apache/shardingsphere/single/distsql/handler/constant/SingleDistSQLConstants.java
new file mode 100644
index 00000000000..00b7dcc296a
--- /dev/null
+++
b/kernel/single/distsql/handler/src/main/java/org/apache/shardingsphere/single/distsql/handler/constant/SingleDistSQLConstants.java
@@ -0,0 +1,36 @@
+/*
+ * 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.single.distsql.handler.constant;
+
+import lombok.AccessLevel;
+import lombok.NoArgsConstructor;
+
+/**
+ * Single DistSQL constants.
+ */
+@NoArgsConstructor(access = AccessLevel.PRIVATE)
+public final class SingleDistSQLConstants {
+
+ public static final String COMMA = ", ";
+
+ public static final String SEMI = ";";
+
+ public static final String LOAD_SINGLE_TABLE = "LOAD SINGLE TABLE ";
+
+ public static final String DATASOURCE_AND_TABLE = "%s.%s";
+}
diff --git
a/kernel/single/distsql/handler/src/main/java/org/apache/shardingsphere/single/distsql/handler/provider/SingleConvertRuleConfigurationProvider.java
b/kernel/single/distsql/handler/src/main/java/org/apache/shardingsphere/single/distsql/handler/provider/SingleConvertRuleConfigurationProvider.java
new file mode 100644
index 00000000000..2dbdd228324
--- /dev/null
+++
b/kernel/single/distsql/handler/src/main/java/org/apache/shardingsphere/single/distsql/handler/provider/SingleConvertRuleConfigurationProvider.java
@@ -0,0 +1,58 @@
+/*
+ * 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.single.distsql.handler.provider;
+
+import
org.apache.shardingsphere.distsql.handler.engine.query.ral.convert.ConvertRuleConfigurationProvider;
+import org.apache.shardingsphere.infra.config.rule.RuleConfiguration;
+import org.apache.shardingsphere.single.api.config.SingleRuleConfiguration;
+import
org.apache.shardingsphere.single.distsql.handler.constant.SingleDistSQLConstants;
+
+import java.util.Iterator;
+
+/**
+ * Single convert rule configuration provider.
+ */
+public final class SingleConvertRuleConfigurationProvider implements
ConvertRuleConfigurationProvider {
+
+ @Override
+ public String convert(final RuleConfiguration ruleConfig) {
+ return getSingleDistSQL((SingleRuleConfiguration) ruleConfig);
+ }
+
+ private String getSingleDistSQL(final SingleRuleConfiguration ruleConfig) {
+ if (ruleConfig.getTables().isEmpty()) {
+ return "";
+ }
+ StringBuilder result = new
StringBuilder(SingleDistSQLConstants.LOAD_SINGLE_TABLE);
+ Iterator<String> iterator = ruleConfig.getTables().iterator();
+ while (iterator.hasNext()) {
+ String tableName = iterator.next();
+
result.append(String.format(SingleDistSQLConstants.DATASOURCE_AND_TABLE,
ruleConfig.getDefaultDataSource(), tableName));
+ if (iterator.hasNext()) {
+ result.append(SingleDistSQLConstants.COMMA);
+ }
+ }
+
result.append(SingleDistSQLConstants.SEMI).append(System.lineSeparator()).append(System.lineSeparator());
+ return result.toString();
+ }
+
+ @Override
+ public Class<? extends RuleConfiguration> getType() {
+ return SingleRuleConfiguration.class;
+ }
+}
diff --git
a/kernel/single/distsql/handler/src/main/resources/META-INF/services/org.apache.shardingsphere.distsql.handler.engine.query.ral.convert.ConvertRuleConfigurationProvider
b/kernel/single/distsql/handler/src/main/resources/META-INF/services/org.apache.shardingsphere.distsql.handler.engine.query.ral.convert.ConvertRuleConfigurationProvider
new file mode 100644
index 00000000000..05e84059a59
--- /dev/null
+++
b/kernel/single/distsql/handler/src/main/resources/META-INF/services/org.apache.shardingsphere.distsql.handler.engine.query.ral.convert.ConvertRuleConfigurationProvider
@@ -0,0 +1,18 @@
+#
+# 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.single.distsql.handler.provider.SingleConvertRuleConfigurationProvider
