org.mule.util.DebugUtils Maven / Gradle / Ivy
/*
* $Id: DebugUtils.java 19191 2010-08-25 21:05:23Z tcarlson $
* --------------------------------------------------------------------------------------
* Copyright (c) MuleSoft, Inc. All rights reserved. http://www.mulesoft.com
*
* The software in this package is published under the terms of the CPAL v1.0
* license, a copy of which has been included with this distribution in the
* LICENSE.txt file.
*/
package org.mule.util;
import java.security.Provider;
import java.security.Security;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;
/**
* Useful for enumerating debug information about the current Java environment
*/
// @ThreadSafe
public final class DebugUtils
{
/** Do not instanciate. */
private DebugUtils ()
{
// no-op
}
/**
* @return all available services types
*/
public static String[] listSecurityServiceTypes()
{
Set result = new HashSet();
// All all providers
Provider[] providers = Security.getProviders();
for (int i = 0; i < providers.length; i++)
{
// Get services provided by each provider
Set keys = providers[i].keySet();
for (Iterator it = keys.iterator(); it.hasNext();)
{
String key = (String) it.next();
key = key.split(" ")[0];
if (key.startsWith("Alg.Alias."))
{
// Strip the alias
key = key.substring(10);
}
int ix = key.indexOf('.');
result.add(key.substring(0, ix));
}
}
return (String[]) result.toArray(new String[result.size()]);
}
/**
* @return the available implementations for a service type
*/
public static String[] listCryptoImplementations(String serviceType)
{
Set result = new HashSet();
// All all providers
Provider[] providers = Security.getProviders();
for (int i = 0; i < providers.length; i++)
{
// Get services provided by each provider
Set keys = providers[i].keySet();
for (Iterator it = keys.iterator(); it.hasNext();)
{
String key = (String) it.next();
key = key.split(" ")[0];
if (key.startsWith(serviceType + "."))
{
result.add(key.substring(serviceType.length() + 1));
}
else if (key.startsWith("Alg.Alias." + serviceType + "."))
{
// This is an alias
result.add(key.substring(serviceType.length() + 11));
}
}
}
return (String[]) result.toArray(new String[result.size()]);
}
}