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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)
-49          (properties.containsKey(DRIVER)
-50              ? properties.getProperty(DRIVER)
-51              : properties.getProperty(JDBC_DRIVER)
-52              );
-53      String url = (String)
-54          (properties.containsKey(URL)
-55              ? properties.getProperty(URL)
-56              : properties.getProperty(JDBC_URL)
-57              );
-58      String user = (String)
-59          (properties.containsKey(USER)
-60              ? properties.getProperty(USER)
-61              : properties.getProperty(JDBC_USER)
-62              );
-63      String password = (String)
-64          (properties.containsKey(PASS)
-65              ? properties.getProperty(PASS)
-66              : properties.getProperty(JDBC_PASSWORD)
-67              );
-68  
-69      if (driver == null || url == null || user == null)
-70      {
-71        log.info("No connection opened, because connection information is incomplete");
-72        log.info("Driver-Class: " + driver);
-73        log.info("URL: " + url);
-74        log.info("User: " + user);
-75        return;
-76      }
-77  
-78      try
-79      {
-80        Class driverClass = classLoaderService.classForName(driver);
-81  
-82        log.debug("Registering JDBC-driver " + driverClass.getName());
-83        DriverManager
-84            .registerDriver(new DriverProxy((Driver) driverClass.newInstance()));
-85  
-86        log.debug(
-87            "Opening JDBC-connection to " + properties.getProperty(URL) +
-88            " as " + properties.getProperty(USERNAME) +
-89            " with password " + properties.getProperty(PASSWORD)
-90            );
-91      
-92        connection = DriverManager.getConnection(url, user, password);
-93      }
-94      catch (Exception e)
-95      {
-96        throw new MojoFailureException("Could not open the JDBC-connection", e);
-97      }
-98    }
-99  
-100   void close()
-101   {
-102     if (connection == null)
-103       return;
-104 
-105     log.debug("Closing the JDBC-connection.");
-106     try
-107     {
-108       connection.close();
-109     }
-110     catch (SQLException e)
-111     {
-112       log.error("Error while closing the JDBC-connection: " + e.getMessage());
-113     }
-114   }
-115 
-116   @Override
-117   public Connection getConnection() throws SQLException
-118   {
-119     log.debug("Connection aquired.");
-120 
-121     if (connection == null)
-122       throw new SQLException("No connection available, because of insufficient connection information!");
-123 
-124     return connection;
-125   }
-126 
-127   @Override
-128   public void closeConnection(Connection conn) throws SQLException
-129   {
-130     log.debug("Connection released");
-131   }
-132 
-133   @Override
-134   public boolean supportsAggressiveRelease()
-135   {
-136     return false;
-137   }
-138 
-139   @Override
-140   public boolean isUnwrappableAs(Class unwrapType)
-141   {
-142     return false;
-143   }
-144 
-145   @Override
-146   public <T> T unwrap(Class<T> unwrapType)
-147   {
-148     throw new UnsupportedOperationException("Not supported.");
-149   }
-150 
-151   /**
-152    * Needed, because DriverManager won't pick up drivers, that were not
-153    * loaded by the system-classloader!
-154    * See:
-155    * http://stackoverflow.com/questions/288828/how-to-use-a-jdbc-driver-fromodifiedm-an-arbitrary-location
-156    */
-157   static final class DriverProxy implements Driver
-158   {
-159     private final Driver target;
-160 
-161     DriverProxy(Driver target)
-162     {
-163       if (target == null)
-164         throw new NullPointerException();
-165       this.target = target;
-166     }
-167 
-168     public java.sql.Driver getTarget()
-169     {
-170       return target;
-171     }
-172 
-173     @Override
-174     public boolean acceptsURL(String url) throws SQLException
-175     {
-176       return target.acceptsURL(url);
-177     }
-178 
-179     @Override
-180     public java.sql.Connection connect(
-181         String url,
-182         java.util.Properties info
-183       )
-184       throws
-185         SQLException
-186     {
-187       return target.connect(url, info);
-188     }
-189 
-190     @Override
-191     public int getMajorVersion()
-192     {
-193       return target.getMajorVersion();
-194     }
-195 
-196     @Override
-197     public int getMinorVersion()
-198     {
-199       return target.getMinorVersion();
-200     }
-201 
-202     @Override
-203     public DriverPropertyInfo[] getPropertyInfo(
-204         String url,
-205         Properties info
-206       )
-207       throws
-208         SQLException
-209     {
-210       return target.getPropertyInfo(url, info);
-211     }
-212 
-213     @Override
-214     public boolean jdbcCompliant()
-215     {
-216       return target.jdbcCompliant();
-217     }
-218 
-219     /**
-220      * This Method cannot be annotated with @Override, becaus the plugin
-221      * will not compile then under Java 1.6!
-222      */
-223     public Logger getParentLogger() throws SQLFeatureNotSupportedException
-224     {
-225       throw new SQLFeatureNotSupportedException("Not supported, for backward-compatibility with Java 1.6");
-226     }
-227 
-228     @Override
-229     public String toString()
-230     {
-231       return "Proxy: " + target;
-232     }
-233 
-234     @Override
-235     public int hashCode()
-236     {
-237       return target.hashCode();
-238     }
-239 
-240     @Override
-241     public boolean equals(Object obj)
-242     {
-243       if (!(obj instanceof DriverProxy))
-244         return false;
-245       DriverProxy other = (DriverProxy) obj;
-246       return this.target.equals(other.target);
-247     }
-248   }
-249 }
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