/*-
 * ============LICENSE_START=======================================================
 * ONAP
 * ================================================================================
 * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
 * ================================================================================
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * ============LICENSE_END=========================================================
 */

package org.onap.policy.common.endpoints.http.server.aaf;

import javax.servlet.http.HttpServletRequest;
import org.onap.policy.common.utils.network.NetworkUtil;

/**
 * This generic class allows the mapping of REST APIs to AAF permissions
 * to be evaluated in an AAF context.   This class can be used for
 * highly granular permissions where each REST resource can be directly
 * mapped transparently to an AAF permission type, the instance being the host
 * server, and the HTTP method corresponding to the action.
 * Subclasses are responsible to provide the root permission prefix, typically
 * the namespace.
 */
public abstract class AafGranularAuthFilter extends AafAuthFilter {

    @Override
    protected String getPermissionType(HttpServletRequest request) {
        return getPermissionTypeRoot() + request.getRequestURI().replace('/', '.');
    }

    @Override
    protected String getPermissionInstance(HttpServletRequest request) {
        return NetworkUtil.getHostname();
    }

    public abstract String getPermissionTypeRoot();
}