How to use

ClassLoaderUtils

in

no.difi.oxalis.commons.filesystem

  @Provides
  @Singleton
  @Named("plugin")
  public ClassLoader providesClassLoader(@Named("home") Path homeDirectory, Settings<FileSystemConf> settings) {
    final Path pluginPath = settings.getPath(FileSystemConf.PLUGIN, homeDirectory);
    log.info("Loading plugins from '{}'.", pluginPath);
    return ClassLoaderUtils.initiate(pluginPath);
  }
}

    findJarFiles(path),
    Thread.currentThread().getContextClassLoader()
);

  @Provides
  @Singleton
  @Named("plugin")
  public ClassLoader providesClassLoader(@Named("home") Path homeDirectory, Settings<FileSystemConf> settings) {
    final Path pluginPath = settings.getPath(FileSystemConf.PLUGIN, homeDirectory);
    log.info("Loading plugins from '{}'.", pluginPath);
    return ClassLoaderUtils.initiate(pluginPath);
  }
}

    findJarFiles(path),
    Thread.currentThread().getContextClassLoader()
);

private ConnectionFactory createConnectionFactory(boolean profileSql) throws MalformedURLException,
    ClassNotFoundException, InstantiationException, IllegalAccessException, SQLException {
  Path jdbcDriverClassPath = settings.getPath(PersistenceConf.DRIVER_PATH, homeFolder);
  ClassLoader classLoader = ClassLoaderUtils.initiate(jdbcDriverClassPath);
  String jdbcDriverClassName = settings.getString(PersistenceConf.DRIVER_CLASS);
  URI connectURI = URI.create(settings.getString(PersistenceConf.JDBC_CONNECTION_URI)); // + "?initialTimeout=2";
  String userName = settings.getString(PersistenceConf.JDBC_USERNAME);
  String password = settings.getString(PersistenceConf.JDBC_PASSWORD);
  Class<?> aClass;
  try {
    aClass = Class.forName(jdbcDriverClassName, true, classLoader);
  } catch (ClassNotFoundException e) {
    throw new IllegalStateException(String.format(
        "Unable to locate class '%s' in class path '%s'", jdbcDriverClassName, jdbcDriverClassPath));
  }
  Driver driver = (Driver) aClass.newInstance();
  assertTrue(driver.acceptsURL(connectURI.toString()));
  Properties properties = new Properties();
  properties.put("user", userName);
  properties.put("password", password);
  if (profileSql) {
    properties.put("profileSQL", "true");       // MySQL debug option
  }
  return new DriverConnectionFactory(driver, connectURI.toString(), properties);
}

ClassLoader classLoader = ClassLoaderUtils.initiate(jdbcDriverClassPath);

ClassLoader classLoader = ClassLoaderUtils.initiate(jdbcDriverClassPath);

@Test
public void testBasicDataSource() throws Exception {
  Path jdbcDriverClassPath = settings.getPath(PersistenceConf.DRIVER_PATH, homeFolder);
  ClassLoader classLoader = ClassLoaderUtils.initiate(jdbcDriverClassPath);
  BasicDataSource basicDataSource = new BasicDataSource();
  basicDataSource.setDriverClassName(settings.getString(PersistenceConf.DRIVER_CLASS));
  basicDataSource.setUrl(settings.getString(PersistenceConf.JDBC_CONNECTION_URI));
  basicDataSource.setUsername(settings.getString(PersistenceConf.JDBC_USERNAME));
  basicDataSource.setPassword(settings.getString(PersistenceConf.JDBC_PASSWORD));
  // Does not work in 1.4, fixed in 1.4.1
  basicDataSource.setDriverClassLoader(classLoader);
  try {
    Connection connection = basicDataSource.getConnection();
    assertNotNull(connection);
  } catch (SQLException e) {
    // As expected when using DBCP 1.4
  }
}