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package org.bouncycastle.cert.jcajce;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.security.NoSuchProviderException;
import java.security.Provider;
import java.security.cert.CRLException;
import java.security.cert.CertificateException;
import java.security.cert.CertificateFactory;
import java.security.cert.X509CRL;
import org.bouncycastle.cert.X509CRLHolder;
/**
* Class for converting an X509CRLHolder into a corresponding X509CRL object tied to a
* particular JCA provider.
*/
public class JcaX509CRLConverter
{
private CertHelper helper = new DefaultCertHelper();
/**
* Base constructor, configure with the default provider.
*/
public JcaX509CRLConverter()
{
this.helper = new DefaultCertHelper();
}
/**
* Set the provider to use from a Provider object.
*
* @param provider the provider to use.
* @return the converter instance.
*/
public JcaX509CRLConverter setProvider(Provider provider)
{
this.helper = new ProviderCertHelper(provider);
return this;
}
/**
* Set the provider to use by name.
*
* @param providerName name of the provider to use.
* @return the converter instance.
*/
public JcaX509CRLConverter setProvider(String providerName)
{
this.helper = new NamedCertHelper(providerName);
return this;
}
/**
* Use the configured converter to produce a X509CRL object from a X509CRLHolder object.
*
* @param crlHolder the holder to be converted
* @return a X509CRL object
* @throws CRLException if the conversion is unable to be made.
*/
public X509CRL getCRL(X509CRLHolder crlHolder)
throws CRLException
{
try
{
CertificateFactory cFact = helper.getCertificateFactory("X.509");
return (X509CRL)cFact.generateCRL(new ByteArrayInputStream(crlHolder.getEncoded()));
}
catch (IOException e)
{
throw new ExCRLException("exception parsing certificate: " + e.getMessage(), e);
}
catch (NoSuchProviderException e)
{
throw new ExCRLException("cannot find required provider:" + e.getMessage(), e);
}
catch (CertificateException e)
{
throw new ExCRLException("cannot create factory: " + e.getMessage(), e);
}
}
private class ExCRLException
extends CRLException
{
private Throwable cause;
public ExCRLException(String msg, Throwable cause)
{
super(msg);
this.cause = cause;
}
public Throwable getCause()
{
return cause;
}
}
}
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