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Add AlgorithmDistSQLConverter (#30594)
* Refactor ConvertYamlConfigurationExecutor * Add AlgorithmDistSQLConverter
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75 changes: 75 additions & 0 deletions
75
...he/shardingsphere/distsql/handler/engine/query/ral/convert/AlgorithmDistSQLConverter.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,75 @@ | ||
| /* | ||
| * 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. | ||
| */ | ||
|
|
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| package org.apache.shardingsphere.distsql.handler.engine.query.ral.convert; | ||
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| import lombok.AccessLevel; | ||
| import lombok.NoArgsConstructor; | ||
| import org.apache.shardingsphere.infra.algorithm.core.config.AlgorithmConfiguration; | ||
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| import java.util.Iterator; | ||
| import java.util.Properties; | ||
| import java.util.TreeMap; | ||
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| /** | ||
| * Algorithm DistSQL converter. | ||
| */ | ||
| @NoArgsConstructor(access = AccessLevel.PRIVATE) | ||
| public final class AlgorithmDistSQLConverter { | ||
|
|
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| /** | ||
| * Get algorithm type. | ||
| * | ||
| * @param algorithmConfig algorithm configuration | ||
| * @return algorithm type | ||
| */ | ||
| public static String getAlgorithmType(final AlgorithmConfiguration algorithmConfig) { | ||
| StringBuilder result = new StringBuilder(); | ||
| if (null == algorithmConfig) { | ||
| return result.toString(); | ||
| } | ||
| String type = algorithmConfig.getType().toLowerCase(); | ||
| result.append(algorithmConfig.getProps().isEmpty() | ||
| ? String.format(DistSQLScriptConstants.ALGORITHM_TYPE_WITHOUT_PROPS, type) | ||
| : String.format(DistSQLScriptConstants.ALGORITHM_TYPE, type, getAlgorithmProperties(algorithmConfig.getProps()))); | ||
| return result.toString(); | ||
| } | ||
|
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| /** | ||
| * Get algorithm properties. | ||
| * | ||
| * @param props properties | ||
| * @return algorithm properties | ||
| */ | ||
| @SuppressWarnings({"unchecked", "rawtypes"}) | ||
| public static String getAlgorithmProperties(final Properties props) { | ||
| StringBuilder result = new StringBuilder(); | ||
| Iterator<String> iterator = new TreeMap(props).keySet().iterator(); | ||
| while (iterator.hasNext()) { | ||
| String key = iterator.next(); | ||
| Object value = props.get(key); | ||
| if (null == value) { | ||
| continue; | ||
| } | ||
| result.append(String.format(DistSQLScriptConstants.PROPERTY, key, value)); | ||
| if (iterator.hasNext()) { | ||
| result.append(DistSQLScriptConstants.COMMA).append(' '); | ||
| } | ||
| } | ||
| return result.toString(); | ||
| } | ||
| } |
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