Removes cached authentication entry for a user. - Java javax.management

Java examples for javax.management:MBeanServer

Description

Removes cached authentication entry for a user.

Demo Code

/**//from  w  ww . ja  va  2  s.  c om
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 */
import java.security.Principal;
import java.util.ArrayList;
import javax.management.InstanceNotFoundException;
import javax.management.MBeanException;
import javax.management.MBeanServer;
import javax.management.MBeanServerFactory;
import javax.management.MalformedObjectNameException;
import javax.management.ObjectName;
import javax.management.ReflectionException;
import org.apache.log4j.Logger;

public class Main{
    private static final String CACHE_FLUSH_WARNING = "Couldn't flush cache";
    private static final Logger LOG = Logger
            .getLogger(AuthenticationCacheHelper.class);
    /**
     * Removes cached authentication entry for a user.
     * 
     * @param principal remove cached entry for this principal.
     */
    public static void flushCachedAuthentication(Principal principal) {
        try {
            String domain = "firebird";
            ObjectName jaasMgr = new ObjectName(
                    "jboss.security:service=JaasSecurityManager");
            Object[] params = { domain, principal };
            String[] signature = { "java.lang.String",
                    Principal.class.getName() };
            MBeanServer server = getServer();
            server.invoke(jaasMgr, "flushAuthenticationCache", params,
                    signature);
        } catch (MalformedObjectNameException e) {
            LOG.warn(CACHE_FLUSH_WARNING, e);
        } catch (MBeanException e) {
            LOG.warn(CACHE_FLUSH_WARNING, e);
        } catch (InstanceNotFoundException e) {
            LOG.warn(CACHE_FLUSH_WARNING, e);
        } catch (ReflectionException e) {
            LOG.warn(CACHE_FLUSH_WARNING, e);
        }
    }
    private static MBeanServer getServer() throws InstanceNotFoundException {
        ArrayList<MBeanServer> serverList = MBeanServerFactory
                .findMBeanServer(null);
        if (serverList.isEmpty()) {
            throw new InstanceNotFoundException(
                    "Couldn't locate JaasSecurityManager MBean");
        }
        return serverList.get(0);
    }
}

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