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Merged gcj-eclipse branch to trunk.

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From-SVN: r120621
This commit is contained in:
Tom Tromey 2007-01-09 19:58:05 +00:00
parent c648dedbde
commit 97b8365caf
17478 changed files with 606493 additions and 100744 deletions
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121
libjava/classpath/java/security/MessageDigest.java
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@ -38,6 +38,9 @@ exception statement from your version. */
package java.security;
import gnu.java.security.Engine;
import java.nio.ByteBuffer;
import java.lang.reflect.InvocationTargetException;
/**
* Message digests are secure one-way hash functions that take arbitrary-sized
@ -72,28 +75,29 @@ public abstract class MessageDigest extends MessageDigestSpi
* Returns a new instance of <code>MessageDigest</code> representing the
* specified algorithm.
*
* @param algorithm
* the name of the digest algorithm to use.
* @param algorithm the name of the digest algorithm to use.
* @return a new instance representing the desired algorithm.
* @throws NoSuchAlgorithmException
* if the algorithm is not implemented by any provider.
* @throws NoSuchAlgorithmException if the algorithm is not implemented by any
* provider.
* @throws IllegalArgumentException if <code>algorithm</code> is
* <code>null</code> or is an empty string.
*/
public static MessageDigest getInstance(String algorithm)
throws NoSuchAlgorithmException
throws NoSuchAlgorithmException
{
Provider[] p = Security.getProviders();
NoSuchAlgorithmException lastException = null;
for (int i = 0; i < p.length; i++)
{
try
{
return getInstance(algorithm, p[i]);
}
catch (NoSuchAlgorithmException ignored)
{
// Ignore.
}
}
try
{
return getInstance(algorithm, p[i]);
}
catch (NoSuchAlgorithmException x)
{
lastException = x;
}
if (lastException != null)
throw lastException;
throw new NoSuchAlgorithmException(algorithm);
}
@ -101,29 +105,26 @@ public abstract class MessageDigest extends MessageDigestSpi
* Returns a new instance of <code>MessageDigest</code> representing the
* specified algorithm from a named provider.
*
* @param algorithm
* the name of the digest algorithm to use.
* @param provider
* the name of the provider to use.
* @param algorithm the name of the digest algorithm to use.
* @param provider the name of the provider to use.
* @return a new instance representing the desired algorithm.
* @throws NoSuchAlgorithmException
* if the algorithm is not implemented by the named provider.
* @throws NoSuchProviderException
* if the named provider was not found.
* @throws NoSuchAlgorithmException if the algorithm is not implemented by the
* named provider.
* @throws NoSuchProviderException if the named provider was not found.
* @throws IllegalArgumentException if either <code>algorithm</code> or
* <code>provider</code> is <code>null</code> or empty.
*/
public static MessageDigest getInstance(String algorithm, String provider)
throws NoSuchAlgorithmException, NoSuchProviderException
throws NoSuchAlgorithmException, NoSuchProviderException
{
if (provider != null)
provider = provider.trim();
if (provider == null || provider.length() == 0)
throw new IllegalArgumentException("Illegal provider");
if (provider == null)
throw new IllegalArgumentException("provider MUST NOT be null");
provider = provider.trim();
if (provider.length() == 0)
throw new IllegalArgumentException("provider MUST NOT be empty");
Provider p = Security.getProvider(provider);
if (p == null)
throw new NoSuchProviderException(provider);
return getInstance(algorithm, p);
}
@ -131,39 +132,43 @@ public abstract class MessageDigest extends MessageDigestSpi
* Returns a new instance of <code>MessageDigest</code> representing the
* specified algorithm from a designated {@link Provider}.
*
* @param algorithm
* the name of the digest algorithm to use.
* @param provider
* the {@link Provider} to use.
* @param algorithm the name of the digest algorithm to use.
* @param provider the {@link Provider} to use.
* @return a new instance representing the desired algorithm.
* @throws IllegalArgumentException
* if <code>provider</code> is <code>null</code>.
* @throws NoSuchAlgorithmException
* if the algorithm is not implemented by {@link Provider}.
* @throws NoSuchAlgorithmException if the algorithm is not implemented by
* {@link Provider}.
* @throws IllegalArgumentException if either <code>algorithm</code> or
* <code>provider</code> is <code>null</code>, or if
* <code>algorithm</code> is an empty string.
* @since 1.4
* @see Provider
*/
public static MessageDigest getInstance(String algorithm, Provider provider)
throws NoSuchAlgorithmException
{
if (provider == null)
throw new IllegalArgumentException("Illegal provider");
MessageDigest result = null;
Object o = null;
StringBuilder sb = new StringBuilder("MessageDigest for algorithm [")
.append(algorithm).append("] from provider[")
.append(provider).append("] ");
Object o;
try
{
o = Engine.getInstance(MESSAGE_DIGEST, algorithm, provider);
}
catch (java.lang.reflect.InvocationTargetException ite)
catch (InvocationTargetException x)
{
throw new NoSuchAlgorithmException(algorithm);
Throwable cause = x.getCause();
if (cause instanceof NoSuchAlgorithmException)
throw (NoSuchAlgorithmException) cause;
if (cause == null)
cause = x;
sb.append("could not be created");
NoSuchAlgorithmException y = new NoSuchAlgorithmException(sb.toString());
y.initCause(cause);
throw y;
}
MessageDigest result;
if (o instanceof MessageDigestSpi)
{
result = new DummyMessageDigest((MessageDigestSpi) o, algorithm);
}
result = new DummyMessageDigest((MessageDigestSpi) o, algorithm);
else if (o instanceof MessageDigest)
{
result = (MessageDigest) o;
@ -171,7 +176,8 @@ public abstract class MessageDigest extends MessageDigestSpi
}
else
{
throw new NoSuchAlgorithmException(algorithm);
sb.append("is of an unexpected Type: ").append(o.getClass().getName());
throw new NoSuchAlgorithmException(sb.toString());
}
result.provider = provider;
return result;
@ -223,6 +229,17 @@ public abstract class MessageDigest extends MessageDigestSpi
engineUpdate(input, 0, input.length);
}
/**
* Updates the digest with the remaining bytes of a buffer.
*
* @param input The input byte buffer.
* @since 1.5
*/
public void update (ByteBuffer input)
{
engineUpdate (input);
}
/**
* Computes the final digest of the stored data.
*