/*

 * Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

package sun.security.provider;

import java.security.CodeSource;

import java.security.Permission;

import java.security.PermissionCollection;

import java.security.Policy;

import java.security.PolicySpi;

import java.security.ProtectionDomain;

import java.security.URIParameter;

import java.net.MalformedURLException;

/**

 * This class wraps the PolicyFile subclass implementation of Policy

 * inside a PolicySpi implementation that is available from the SUN provider

 * via the Policy.getInstance calls.

 *

 */

public final class PolicySpiFile extends PolicySpi {

    private PolicyFile pf;

    public PolicySpiFile(Policy.Parameters params) {

        if (params == null) {

            pf = new PolicyFile();

        } else {

            if (!(params instanceof URIParameter)) {

                throw new IllegalArgumentException

                        ("Unrecognized policy parameter: " + params);

            }

            URIParameter uriParam = (URIParameter)params;

            try {

                pf = new PolicyFile(uriParam.getURI().toURL());

            } catch (MalformedURLException mue) {

                throw new IllegalArgumentException("Invalid URIParameter", mue);

            }

        }

    }

    protected PermissionCollection engineGetPermissions(CodeSource codesource) {

        return pf.getPermissions(codesource);

    }

    protected PermissionCollection engineGetPermissions(ProtectionDomain d) {

        return pf.getPermissions(d);

    }

    protected boolean engineImplies(ProtectionDomain d, Permission p) {

        return pf.implies(d, p);

    }

    protected void engineRefresh() {

        pf.refresh();

    }

}