content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you 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.apache.bookkeeper.tls;
  
  import org.apache.bookkeeper.common.util.ReflectionUtils;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * A factory to manage security provider factories.
   */
  public abstract class SecurityProviderFactoryFactory {
      private static final Logger LOG = LoggerFactory.getLogger(SecurityProviderFactoryFactory.class);
  
      public static SecurityHandlerFactory getSecurityProviderFactory(String securityHandler)
              throws SecurityException {
          if ((securityHandler == null) || (securityHandler.equals(""))) {
              return null;
          }
  
          SecurityHandlerFactory shFactory;
          try {
              Class<? extends SecurityHandlerFactory> shFactoryClass =
                  ReflectionUtils.forName(securityHandler, SecurityHandlerFactory.class);
              shFactory = ReflectionUtils.newInstance(shFactoryClass);
              LOG.info("Loaded security handler for {}", securityHandler);
          } catch (RuntimeException re) {
              LOG.error("Unable to load security handler for {}: ", securityHandler, re.getCause());
              throw new SecurityException(re.getCause());
          }
          return shFactory;
      }
  
  }
  