DefaultAuthenticationPerformerFactory.java

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 * Pentaho Data Integration
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 * Copyright (C) 2002-2013 by Pentaho : http://www.pentaho.com
 *
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 * Licensed 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
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 *    http://www.apache.org/licenses/LICENSE-2.0
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package org.pentaho.di.core.auth.core.impl;

import org.pentaho.di.core.auth.core.AuthenticationConsumerFactory;
import org.pentaho.di.core.auth.core.AuthenticationConsumerInvocationHandler;
import org.pentaho.di.core.auth.core.AuthenticationPerformer;
import org.pentaho.di.core.auth.core.AuthenticationPerformerFactory;
import org.pentaho.di.core.auth.core.AuthenticationProvider;

public class DefaultAuthenticationPerformerFactory implements AuthenticationPerformerFactory {

  @SuppressWarnings( { "rawtypes", "unchecked" } )
  @Override
  public <ReturnType, CreateArgType, ConsumedType> AuthenticationPerformer<ReturnType, CreateArgType> create(
      AuthenticationProvider authenticationProvider,
      AuthenticationConsumerFactory<ReturnType, CreateArgType, ConsumedType> authenticationConsumerFactory ) {
    if ( authenticationConsumerFactory.getConsumedType().isInstance( authenticationProvider ) ) {
      return new DefaultAuthenticationPerformer( authenticationProvider, authenticationConsumerFactory );
    } else if ( AuthenticationConsumerInvocationHandler.isCompatible( authenticationConsumerFactory.getConsumedType(),
            authenticationProvider ) ) {
      return new ClassloaderBridgingAuthenticationPerformer<ReturnType, CreateArgType, ConsumedType>(
          authenticationProvider, authenticationConsumerFactory );
    }
    return null;
  }
}