AuthenticatingSecurityManager.java

package com.hwlcn.security.mgt;

import com.hwlcn.security.authc.AuthenticationException;
import com.hwlcn.security.authc.AuthenticationInfo;
import com.hwlcn.security.authc.AuthenticationToken;
import com.hwlcn.security.authc.Authenticator;
import com.hwlcn.security.authc.pam.ModularRealmAuthenticator;
import com.hwlcn.security.util.LifecycleUtils;


public abstract class AuthenticatingSecurityManager extends RealmSecurityManager {

    private Authenticator authenticator;

    public AuthenticatingSecurityManager() {
        super();
        this.authenticator = new ModularRealmAuthenticator();
    }

    public Authenticator getAuthenticator() {
        return authenticator;
    }

    public void setAuthenticator(Authenticator authenticator) throws IllegalArgumentException {
        if (authenticator == null) {
            String msg = "Authenticator argument cannot be null.";
            throw new IllegalArgumentException(msg);
        }
        this.authenticator = authenticator;
    }

    protected void afterRealmsSet() {
        super.afterRealmsSet();
        if (this.authenticator instanceof ModularRealmAuthenticator) {
            ((ModularRealmAuthenticator) this.authenticator).setRealms(getRealms());
        }
    }

    public AuthenticationInfo authenticate(AuthenticationToken token) throws AuthenticationException {
        return this.authenticator.authenticate(token);
    }

    public void destroy() {
        LifecycleUtils.destroy(getAuthenticator());
        this.authenticator = null;
        super.destroy();
    }
}