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Posted to dev@turbine.apache.org by ep...@apache.org on 2003/08/16 04:40:29 UTC
cvs commit: jakarta-turbine-fulcrum/crypto/src/java/org/apache/fulcrum/crypto DefaultCryptoService.java
epugh 2003/08/15 19:40:29
Added: crypto/src/java/org/apache/fulcrum/crypto
DefaultCryptoService.java
Log:
Committing /crypto subproject. CVS is being difficult
Revision Changes Path
1.1 jakarta-turbine-fulcrum/crypto/src/java/org/apache/fulcrum/crypto/DefaultCryptoService.java
Index: DefaultCryptoService.java
===================================================================
package org.apache.fulcrum.crypto;
/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2001 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Apache" and "Apache Software Foundation" and
* "Apache Turbine" must not be used to endorse or promote products
* derived from this software without prior written permission. For
* written permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* "Apache Turbine", nor may "Apache" appear in their name, without
* prior written permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
import java.security.NoSuchAlgorithmException;
import java.util.Hashtable;
import org.apache.avalon.framework.activity.Initializable;
import org.apache.avalon.framework.activity.Startable;
import org.apache.avalon.framework.component.Component;
import org.apache.avalon.framework.configuration.Configurable;
import org.apache.avalon.framework.configuration.Configuration;
import org.apache.avalon.framework.configuration.ConfigurationException;
import org.apache.avalon.framework.context.Context;
import org.apache.avalon.framework.context.ContextException;
import org.apache.avalon.framework.context.Contextualizable;
import org.apache.avalon.framework.logger.AbstractLogEnabled;
import org.apache.avalon.framework.thread.ThreadSafe;
/**
* An implementation of CryptoService that uses either supplied crypto
* Algorithms (provided in Fulcrum.properties) or tries to get them via
* the normal java mechanisms if this fails.
*
* @author <a href="mailto:hps@intermeta.de">Henning P. Schmiedehausen</a>
* @version $Id: DefaultCryptoService.java,v 1.1 2003/08/16 02:40:29 epugh Exp $
*
*/
public class DefaultCryptoService
extends AbstractLogEnabled
implements CryptoService,Component, Configurable, Initializable, Contextualizable, Startable, ThreadSafe
{
/** The Avalon Context */
private Context context = null;
/** Key Prefix for our algorithms */
private static final String ALGORITHM = "algorithm";
/** Default Key */
private static final String DEFAULT_KEY = "default";
/** Default Encryption Class */
private static final String DEFAULT_CLASS = "org.apache.fulcrum.crypto.provider.JavaCrypt";
private boolean disposed = false;
/** Names of the registered algorithms and the wanted classes */
private Hashtable algos = null;
/**
* Returns a CryptoAlgorithm Object which represents the requested
* crypto algorithm.
*
* @param algo Name of the requested algorithm
*
* @return An Object representing the algorithm
*
* @throws NoSuchAlgorithmException Requested algorithm is not available
*
*/
public CryptoAlgorithm getCryptoAlgorithm(String algo) throws NoSuchAlgorithmException
{
String cryptoClass = (String) algos.get(algo);
CryptoAlgorithm ca = null;
if (cryptoClass == null)
{
cryptoClass = (String) algos.get(DEFAULT_KEY);
}
if (cryptoClass == null || cryptoClass.equalsIgnoreCase("none"))
{
throw new NoSuchAlgorithmException("TurbineCryptoService: No Algorithm for " + algo + " found");
}
try
{
//@todo should be created via factory service. Just trying to get something to work.
//ca = (CryptoAlgorithm) factoryService.getInstance(cryptoClass);
ca = (CryptoAlgorithm) Class.forName(cryptoClass).newInstance();
;
}
catch (Exception e)
{
throw new NoSuchAlgorithmException(
"TurbineCryptoService: Error instantiating " + cryptoClass + " for " + algo);
}
ca.setCipher(algo);
return ca;
}
// ---------------- Avalon Lifecycle Methods ---------------------
/**
* Avalon component lifecycle method
*/
public void configure(Configuration conf) throws ConfigurationException
{
this.algos = new Hashtable();
// Set up default (Can be overridden by default key
// from the properties
algos.put(DEFAULT_KEY, DEFAULT_CLASS);
final Configuration algorithms = conf.getChild(ALGORITHM, false);
if (algorithms != null)
{
Configuration[] nameVal = algorithms.getChildren();
for (int i = 0; i < nameVal.length; i++)
{
String key = nameVal[i].getName();
String val = nameVal[i].getValue();
// getLogger.debug("Registered " + val
// + " for Crypto Algorithm " + key);
algos.put(key, val);
}
}
}
/**
* @see org.apache.avalon.framework.context.Contextualizable
*/
public void contextualize(Context context) throws ContextException
{
this.context = context;
}
/**
* @see org.apache.avalon.framework.activity.Initializable#initialize()
*/
public void initialize()
throws Exception
{
getLogger().debug("initialize()");
}
/**
* @see org.apache.avalon.framework.activity.Startable#start()
*/
public void start()
{
getLogger().debug("start()");
}
/**
* @see org.apache.avalon.framework.activity.Startable#stop()
*/
public void stop()
{
getLogger().debug("stop()");
}
/**
* Avalon component lifecycle method
*/
public void dispose()
{
disposed = true;
}
}