| /* |
| * 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.rocketmq.schema.registry.storage.jdbc.dialect; |
| |
| import com.google.common.collect.Maps; |
| |
| import java.util.Iterator; |
| import java.util.Map; |
| import java.util.ServiceLoader; |
| |
| /** |
| * Discover dialect factory |
| */ |
| public class DiscoverDialectFactory { |
| |
| private static final Map<String, DatabaseDialectProvider> DIALECT_CACHE = Maps.newConcurrentMap(); |
| |
| static { |
| loadDialects(); |
| } |
| |
| private static void loadDialects() { |
| ServiceLoader<DatabaseDialectProvider> dialects = ServiceLoader.load(DatabaseDialectProvider.class); |
| Iterator<DatabaseDialectProvider> dialectIterator = dialects.iterator(); |
| while (dialectIterator.hasNext()) { |
| DatabaseDialectProvider dialect = dialectIterator.next(); |
| DIALECT_CACHE.put(dialect.databaseType(), dialect); |
| } |
| } |
| |
| public static DatabaseDialectProvider getDialectProvider(String dbType) { |
| return DIALECT_CACHE.get(dbType); |
| } |
| } |