edu.vt.middleware.ldap.ssl.SingletonTLSSocketFactory.java Source code

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Here is the source code for edu.vt.middleware.ldap.ssl.SingletonTLSSocketFactory.java

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/*
  $Id$
    
  Copyright (C) 2003-2010 Virginia Tech.
  All rights reserved.
    
  SEE LICENSE FOR MORE INFORMATION
    
  Author:  Middleware Services
  Email:   middleware@vt.edu
  Version: $Revision$
  Updated: $Date$
*/
package edu.vt.middleware.ldap.ssl;

import java.security.GeneralSecurityException;
import javax.net.SocketFactory;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * TLSSocketFactory implementation that uses a static SSLContextInitializer.
 * Useful for SSL configurations that can only retrieve the SSLSocketFactory
 * from getDefault().
 *
 * @author  Middleware Services
 * @version  $Revision$ $Date$
 */
public class SingletonTLSSocketFactory extends TLSSocketFactory {
    /** SSLContextInitializer used for initializing SSL contexts. */
    protected static SSLContextInitializer staticContextInitializer;

    /** {@inheritDoc} */
    public void setSSLContextInitializer(final SSLContextInitializer initializer) {
        if (staticContextInitializer != null) {
            final Log logger = LogFactory.getLog(SingletonTLSSocketFactory.class);
            if (logger.isWarnEnabled()) {
                logger.warn("SSLContextInitializer is being overridden");
            }
        }
        staticContextInitializer = initializer;
    }

    /** {@inheritDoc} */
    public void initialize() throws GeneralSecurityException {
        super.setSSLContextInitializer(staticContextInitializer);
        super.initialize();
    }

    /**
     * This returns the default SSL socket factory.
     *
     * @return  <code>SocketFactory</code>
     */
    public static SocketFactory getDefault() {
        final SingletonTLSSocketFactory sf = new SingletonTLSSocketFactory();
        try {
            sf.initialize();
        } catch (GeneralSecurityException e) {
            final Log logger = LogFactory.getLog(SingletonTLSSocketFactory.class);
            if (logger.isErrorEnabled()) {
                logger.error("Error initializing socket factory", e);
            }
        }
        return sf;
    }
}