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.activemq.artemis.jms.tests.tools.container;
  
  import javax.naming.NamingException;
  import javax.naming.spi.InitialContextFactory;
  import javax.naming.spi.InitialContextFactoryBuilder;
  import java.util.Hashtable;
  
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import java.lang.invoke.MethodHandles;
  
  public class InVMInitialContextFactoryBuilder implements InitialContextFactoryBuilder {
  
     private static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
  
     public InVMInitialContextFactoryBuilder() {
     }
  
     @Override
     public InitialContextFactory createInitialContextFactory(final Hashtable<?, ?> environment) throws NamingException {
  
        InitialContextFactory icf = null;
  
        if (environment != null) {
           String icfName = (String) environment.get("java.naming.factory.initial");
  
           if (icfName != null) {
              Class c = null;
  
              try {
                 c = Class.forName(icfName);
              } catch (ClassNotFoundException e) {
                 logger.error("\"{}\" cannot be loaded", icfName, e);
                 throw new NamingException("\"" + icfName + "\" cannot be loaded");
              }
  
              try {
                 icf = (InitialContextFactory) c.newInstance();
              } catch (InstantiationException e) {
                 logger.error("{} cannot be instantiated", c.getName(), e);
                 throw new NamingException(c.getName() + " cannot be instantiated");
              } catch (IllegalAccessException e) {
                 logger.error("{} instantiation generated an IllegalAccessException", c.getName(), e);
                 throw new NamingException(c.getName() + " instantiation generated an IllegalAccessException");
              }
           }
        }
  
        if (icf == null) {
           icf = new InVMInitialContextFactory();
        }
  
        return icf;
     }
  }