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-1   package de.juplo.plugins.hibernate;
-2   
-3   import java.sql.Connection;
-4   import java.sql.Driver;
-5   import java.sql.DriverManager;
-6   import java.sql.DriverPropertyInfo;
-7   import java.sql.SQLException;
-8   import java.sql.SQLFeatureNotSupportedException;
-9   import java.util.Properties;
-10  import java.util.logging.Logger;
-11  import org.apache.maven.plugin.MojoFailureException;
-12  import org.apache.maven.plugin.logging.Log;
-13  import static org.eclipse.aether.repository.AuthenticationContext.PASSWORD;
-14  import static org.eclipse.aether.repository.AuthenticationContext.USERNAME;
-15  import org.hibernate.boot.registry.classloading.spi.ClassLoaderService;
-16  import static org.hibernate.cfg.AvailableSettings.DRIVER;
-17  import static org.hibernate.cfg.AvailableSettings.PASS;
-18  import static org.hibernate.cfg.AvailableSettings.URL;
-19  import static org.hibernate.cfg.AvailableSettings.USER;
-20  import org.hibernate.engine.jdbc.connections.spi.ConnectionProvider;
-21  import static org.hibernate.jpa.AvailableSettings.JDBC_DRIVER;
-22  import static org.hibernate.jpa.AvailableSettings.JDBC_PASSWORD;
-23  import static org.hibernate.jpa.AvailableSettings.JDBC_URL;
-24  import static org.hibernate.jpa.AvailableSettings.JDBC_USER;
-25  
-26  /**
-27   *
-28   * @author Kai Moritz
-29   */
-30  class SimpleConnectionProvider implements ConnectionProvider
-31  {
-32    private final Log log;
-33  
-34    private Connection connection;
-35  
-36  
-37    SimpleConnectionProvider(Log log)
-38    {
-39      this.log = log;
-40    }
-41  
-42  
-43    void open(ClassLoaderService classLoaderService, Properties properties)
-44        throws
-45          MojoFailureException
-46    {
-47  
-48      String driver = (String)properties.getProperty(DRIVER);
-49      String url = (String)properties.getProperty(URL);
-50      String user = (String)properties.getProperty(USER);
-51      String password = (String)properties.getProperty(PASS);
-52  
-53      if (driver == null || url == null)
-54      {
-55        log.info("No connection opened, because connection information is incomplete");
-56        log.info("Driver-Class: " + driver);
-57        log.info("URL: " + url);
-58        return;
-59      }
-60  
-61      try
-62      {
-63        Class driverClass = classLoaderService.classForName(driver);
-64  
-65        log.debug("Registering JDBC-driver " + driverClass.getName());
-66        DriverManager
-67            .registerDriver(new DriverProxy((Driver) driverClass.newInstance()));
-68  
-69        log.debug(
-70            "Opening JDBC-connection to " + url +
-71            " as " + user +
-72            " with password " + password
-73            );
-74      
-75        connection = DriverManager.getConnection(url, user, password);
-76      }
-77      catch (Exception e)
-78      {
-79        log.info("Could not open the JDBC-connection: " + e.getMessage());
-80      }
-81    }
-82  
-83    void close()
-84    {
-85      if (connection == null)
-86        return;
-87  
-88      log.debug("Closing the JDBC-connection.");
-89      try
-90      {
-91        connection.close();
-92      }
-93      catch (SQLException e)
-94      {
-95        log.error("Error while closing the JDBC-connection: " + e.getMessage());
-96      }
-97    }
-98  
-99    @Override
-100   public Connection getConnection() throws SQLException
-101   {
-102     log.debug("Connection aquired.");
-103 
-104     if (connection == null)
-105       throw new SQLException("No connection available, because of insufficient connection information!");
-106 
-107     return connection;
-108   }
-109 
-110   @Override
-111   public void closeConnection(Connection conn) throws SQLException
-112   {
-113     log.debug("Connection released");
-114   }
-115 
-116   @Override
-117   public boolean supportsAggressiveRelease()
-118   {
-119     return false;
-120   }
-121 
-122   @Override
-123   public boolean isUnwrappableAs(Class unwrapType)
-124   {
-125     return false;
-126   }
-127 
-128   @Override
-129   public <T> T unwrap(Class<T> unwrapType)
-130   {
-131     throw new UnsupportedOperationException("Not supported.");
-132   }
-133 
-134   /**
-135    * Needed, because DriverManager won't pick up drivers, that were not
-136    * loaded by the system-classloader!
-137    * See:
-138    * http://stackoverflow.com/questions/288828/how-to-use-a-jdbc-driver-fromodifiedm-an-arbitrary-location
-139    */
-140   static final class DriverProxy implements Driver
-141   {
-142     private final Driver target;
-143 
-144     DriverProxy(Driver target)
-145     {
-146       if (target == null)
-147         throw new NullPointerException();
-148       this.target = target;
-149     }
-150 
-151     public java.sql.Driver getTarget()
-152     {
-153       return target;
-154     }
-155 
-156     @Override
-157     public boolean acceptsURL(String url) throws SQLException
-158     {
-159       return target.acceptsURL(url);
-160     }
-161 
-162     @Override
-163     public java.sql.Connection connect(
-164         String url,
-165         java.util.Properties info
-166       )
-167       throws
-168         SQLException
-169     {
-170       return target.connect(url, info);
-171     }
-172 
-173     @Override
-174     public int getMajorVersion()
-175     {
-176       return target.getMajorVersion();
-177     }
-178 
-179     @Override
-180     public int getMinorVersion()
-181     {
-182       return target.getMinorVersion();
-183     }
-184 
-185     @Override
-186     public DriverPropertyInfo[] getPropertyInfo(
-187         String url,
-188         Properties info
-189       )
-190       throws
-191         SQLException
-192     {
-193       return target.getPropertyInfo(url, info);
-194     }
-195 
-196     @Override
-197     public boolean jdbcCompliant()
-198     {
-199       return target.jdbcCompliant();
-200     }
-201 
-202     /**
-203      * This Method cannot be annotated with @Override, becaus the plugin
-204      * will not compile then under Java 1.6!
-205      */
-206     public Logger getParentLogger() throws SQLFeatureNotSupportedException
-207     {
-208       throw new SQLFeatureNotSupportedException("Not supported, for backward-compatibility with Java 1.6");
-209     }
-210 
-211     @Override
-212     public String toString()
-213     {
-214       return "Proxy: " + target;
-215     }
-216 
-217     @Override
-218     public int hashCode()
-219     {
-220       return target.hashCode();
-221     }
-222 
-223     @Override
-224     public boolean equals(Object obj)
-225     {
-226       if (!(obj instanceof DriverProxy))
-227         return false;
-228       DriverProxy other = (DriverProxy) obj;
-229       return this.target.equals(other.target);
-230     }
-231   }
-232 }
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