content: /*
   * Copyright 2010-2025 Hyland Software, Inc. and its affiliates.
   *
   * Licensed 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.activiti.engine.impl.cfg.multitenant;
  
  import java.io.PrintWriter;
  import java.sql.Connection;
  import java.sql.SQLException;
  import java.sql.SQLFeatureNotSupportedException;
  import java.util.HashMap;
  import java.util.Map;
  import java.util.logging.Logger;
  import javax.sql.DataSource;
  import org.activiti.engine.ActivitiException;
  
  /**
   * A {@link DataSource} implementation that switches the currently used datasource based on the
   * current values of the {@link TenantInfoHolder}.
   *
   * When a {@link Connection} is requested from this {@link DataSource}, the correct {@link DataSource}
   * for the current tenant will be determined and used.
   *
   * Heavily influenced and inspired by Spring's AbstractRoutingDataSource.
   *
   * @deprecated multi-tenant code will be removed in future version of Activiti and Activiti Cloud
   */
  @Deprecated
  public class TenantAwareDataSource implements DataSource {
  
      protected TenantInfoHolder tenantInfoHolder;
      protected Map<Object, DataSource> dataSources = new HashMap<Object, DataSource>();
  
      public TenantAwareDataSource(TenantInfoHolder tenantInfoHolder) {
          this.tenantInfoHolder = tenantInfoHolder;
      }
  
      public void addDataSource(Object key, DataSource dataSource) {
          dataSources.put(key, dataSource);
      }
  
      public void removeDataSource(Object key) {
          dataSources.remove(key);
      }
  
      public Connection getConnection() throws SQLException {
          return getCurrentDataSource().getConnection();
      }
  
      public Connection getConnection(String username, String password) throws SQLException {
          return getCurrentDataSource().getConnection(username, password);
      }
  
      protected DataSource getCurrentDataSource() {
          String tenantId = tenantInfoHolder.getCurrentTenantId();
          DataSource dataSource = dataSources.get(tenantId);
          if (dataSource == null) {
              throw new ActivitiException("Could not find a dataSource for tenant " + tenantId);
          }
          return dataSource;
      }
  
      public int getLoginTimeout() throws SQLException {
          return 0; // Default
      }
  
      public Logger getParentLogger() throws SQLFeatureNotSupportedException {
          return Logger.getLogger(Logger.GLOBAL_LOGGER_NAME);
      }
  
      @SuppressWarnings("unchecked")
      public <T> T unwrap(Class<T> iface) throws SQLException {
          if (iface.isInstance(this)) {
              return (T) this;
          }
          throw new SQLException("Cannot unwrap " + getClass().getName() + " as an instance of " + iface.getName());
      }
  
      public boolean isWrapperFor(Class<?> iface) throws SQLException {
          return iface.isInstance(this);
      }
  
      public Map<Object, DataSource> getDataSources() {
          return dataSources;
      }
  
      public void setDataSources(Map<Object, DataSource> dataSources) {
          this.dataSources = dataSources;
      }
  
      // Unsupported //////////////////////////////////////////////////////////
  
      public PrintWriter getLogWriter() throws SQLException {
          throw new UnsupportedOperationException();
      }
  
      public void setLogWriter(PrintWriter out) throws SQLException {
          throw new UnsupportedOperationException();
      }
  
      public void setLoginTimeout(int seconds) throws SQLException {
          throw new UnsupportedOperationException();
      }
  }
  