/**
 * Licensed to Apereo under one or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information regarding copyright ownership. Apereo
 * licenses this file to you 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 the
 * following location:
 *
 * <p>http://www.apache.org/licenses/LICENSE-2.0
 *
 * <p>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.
 */
package org.apereo.portal.security.provider;

import org.apereo.portal.AuthorizationException;
import org.apereo.portal.security.IAuthorizationPrincipal;
import org.apereo.portal.security.IPermission;
import org.apereo.portal.security.IPermissionManager;

/**
 */
public class PermissionManagerImpl implements IPermissionManager {
    private AuthorizationImpl authorizationService;
    private java.lang.String owner;

    /**
     * This constructor ensures that the PermissionManager will be created with an owner specified
     *
     * @param newOwner the new owner
     * @param authService the authorization service
     */
    public PermissionManagerImpl(String newOwner, AuthorizationImpl authService) {
        super();
        owner = newOwner;
        authorizationService = authService;
    }

    /** @return org.apereo.portal.security.provider.AuthorizationImpl */
    AuthorizationImpl getAuthorizationService() {
        return authorizationService;
    }

    /**
     * Returns <code>IAuthorizationPrincipals</code> granted <code>IPermissions</code> by the owner
     * of this <code>IPermissionManager</code>, for the given <code>activity</code> and <code>target
     * </code>. If either parameter is null, it is ignored.
     *
     * @return IAuthorizationPrincipal[]
     * @param activity String - the Permission activity
     * @param target String - the Permission target
     */
    public IAuthorizationPrincipal[] getAuthorizedPrincipals(String activity, String target)
            throws AuthorizationException {
        return getAuthorizationService().getAuthorizedPrincipals(getOwner(), activity, target);
    }

    /** @return java.lang.String */
    public java.lang.String getOwner() {
        return owner;
    }

    @Override
    public IPermission[] getPermissionsForTarget(final String target) {
        return getAuthorizationService().getPermissionsForTarget(getOwner(), target);
    }

    /**
     * Retrieve an array of IPermission objects based on the given parameters. Any null parameters
     * will be ignored.
     *
     * @param activity String
     * @param target String
     * @return IPermission[]
     * @exception AuthorizationException
     */
    public IPermission[] getPermissions(String activity, String target)
            throws AuthorizationException {
        return getAuthorizationService().getPermissionsForOwner(getOwner(), activity, target);
    }
}