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/*
 * ******************************************************************************
 *      Cloud Foundry
 *      Copyright (c) [2009-2016] Pivotal Software, Inc. All Rights Reserved.
 *
 *      This product is licensed to you under the Apache License, Version 2.0 (the "License").
 *      You may not use this product except in compliance with the License.
 *
 *      This product includes a number of subcomponents with
 *      separate copyright notices and license terms. Your use of these
 *      subcomponents is subject to the terms and conditions of the
 *      subcomponent's license, as noted in the LICENSE file.
 * ******************************************************************************
 */
package org.cloudfoundry.identity.uaa.provider.ldap;

import org.cloudfoundry.identity.uaa.provider.ldap.extension.LdapAuthority;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.mapping.GrantedAuthoritiesMapper;
import org.springframework.util.StringUtils;

import java.util.ArrayList;
import java.util.Collection;

public class CommaSeparatedScopesMapper implements GrantedAuthoritiesMapper {

    @Override
    public Collection mapAuthorities(Collection authorities) {
        ArrayList result = new ArrayList<>();
        for (GrantedAuthority authority : authorities) {
            LdapAuthority ldapAuthority = (LdapAuthority)authority;
            for (String scope : StringUtils.commaDelimitedListToSet(authority.getAuthority())) {
                LdapAuthority a = new LdapAuthority(scope, ldapAuthority.getDn(), ldapAuthority.getAttributes());
                result.add(a);
            }
        }
        return result;
    }
}