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Add datasource caching to avoid creating excessive connections to the databse. Fixes wso2/api-manager/issues/781
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67
...2.carbon.user.core/src/main/java/org/wso2/carbon/user/core/util/DatasourceDataHolder.java
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| @@ -0,0 +1,67 @@ | ||
| /* | ||
| * Copyright (c) 2022, WSO2 LLC (http://www.wso2.com). | ||
| * | ||
| * WSO2 LLC 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.wso2.carbon.user.core.util; | ||
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| import org.apache.commons.logging.Log; | ||
| import org.apache.commons.logging.LogFactory; | ||
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| import javax.sql.DataSource; | ||
| import java.util.AbstractMap; | ||
| import java.util.Iterator; | ||
| import java.util.concurrent.ConcurrentHashMap; | ||
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| /** | ||
| * Data holder to maintain datasource (JDBC) references of each domain. | ||
| */ | ||
| public class DatasourceDataHolder { | ||
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| private static final DatasourceDataHolder Instance = new DatasourceDataHolder(); | ||
| private static Log log = LogFactory.getLog(DatasourceDataHolder.class); | ||
| //key = <tenantId,domain of the userstore)> | ||
| private static ConcurrentHashMap<AbstractMap.SimpleEntry<String, String>, DataSource> dataSourceHolder | ||
| = new ConcurrentHashMap<>(); | ||
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| public static DatasourceDataHolder getInstance() { | ||
| return Instance; | ||
| } | ||
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| public void addDataSourceForDomain(AbstractMap.SimpleEntry<String, String> key, DataSource dataSource) { | ||
| dataSourceHolder.put(key, dataSource); | ||
| } | ||
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| public void removeDomainDataSources(AbstractMap.SimpleEntry<String, String> domain) { | ||
| dataSourceHolder.remove(domain); | ||
| } | ||
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| public DataSource getDataStoreForDomain(AbstractMap.SimpleEntry<String, String> domain) { | ||
| return dataSourceHolder.get(domain); | ||
| } | ||
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| public static void removeDatasourcesOfTenant(int tenantId) { | ||
| Iterator<AbstractMap.SimpleEntry<String, String>> iterator = dataSourceHolder.keySet().iterator(); | ||
| while (iterator.hasNext()) { | ||
| AbstractMap.SimpleEntry<String, String> entry = iterator.next(); | ||
| if (entry.getKey().equals(String.valueOf(tenantId))) { | ||
| // Closing the connections | ||
| if (dataSourceHolder.get(entry) instanceof org.apache.tomcat.jdbc.pool.DataSourceProxy) { | ||
| ((org.apache.tomcat.jdbc.pool.DataSourceProxy) dataSourceHolder.get(entry)).close(true); | ||
| } | ||
| dataSourceHolder.remove(entry); | ||
| } | ||
| } | ||
| } | ||
| } |