ws.ament.hammock.jpa.HammockDataSource Maven / Gradle / Ivy

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/*
 * Copyright 2016 Hammock and its contributors
 *
 * 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 ws.ament.hammock.jpa;

import javax.annotation.sql.DataSourceDefinition;
import javax.sql.DataSource;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.SQLException;
import java.sql.SQLFeatureNotSupportedException;
import java.util.logging.Logger;

import com.zaxxer.hikari.HikariConfig;
import com.zaxxer.hikari.HikariDataSource;

public class HammockDataSource implements DataSource {
   private final DataSource delegate;

   public HammockDataSource(DataSourceDefinition dataSourceDefinition) {
      this.delegate = createDelegate(dataSourceDefinition);
   }

   private static DataSource createDelegate(DataSourceDefinition dataSourceDefinition) {
      HikariConfig config = new HikariConfig();
      if(dataSourceDefinition.url() != null) {
         config.setJdbcUrl(dataSourceDefinition.url());
      }
      if(dataSourceDefinition.user() != null) {
         config.setUsername(dataSourceDefinition.user());
         config.setPassword(dataSourceDefinition.password());
      }
      if(dataSourceDefinition.maxPoolSize() > 0) {
         config.setMaximumPoolSize(dataSourceDefinition.maxPoolSize());
      }
      config.addDataSourceProperty("cachePrepStmts", "true");
      config.addDataSourceProperty("prepStmtCacheSize", "250");
      config.addDataSourceProperty("prepStmtCacheSqlLimit", "2048");

      return new HikariDataSource(config);
   }

   @Override
   public Connection getConnection() throws SQLException {
      return delegate.getConnection();
   }

   @Override
   public Connection getConnection(String username, String password) throws SQLException {
      return delegate.getConnection(username, password);
   }

   @Override
   public PrintWriter getLogWriter() throws SQLException {
      return delegate.getLogWriter();
   }

   @Override
   public void setLogWriter(PrintWriter out) throws SQLException {
      delegate.setLogWriter(out);
   }

   @Override
   public void setLoginTimeout(int seconds) throws SQLException {
      delegate.setLoginTimeout(seconds);
   }

   @Override
   public int getLoginTimeout() throws SQLException {
      return delegate.getLoginTimeout();
   }

   @Override
   public Logger getParentLogger() throws SQLFeatureNotSupportedException {
      return delegate.getParentLogger();
   }

   @Override
   public  T unwrap(Class iface) throws SQLException {
      return delegate.unwrap(iface);
   }

   @Override
   public boolean isWrapperFor(Class iface) throws SQLException {
      return delegate.isWrapperFor(iface);
   }
}