it.f2informatica.webapp.security.BasicAuthorityService.java Source code

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Here is the source code for it.f2informatica.webapp.security.BasicAuthorityService.java

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/*
 * =============================================================================
 *
 *   Copyright (c) 2014, Fernando Aspiazu
 *
 *   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.
 *
 * =============================================================================
 */
package it.f2informatica.webapp.security;

import com.google.common.collect.Lists;
import it.f2informatica.core.Authority;
import org.apache.commons.lang3.StringUtils;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.SimpleGrantedAuthority;

import java.util.Collection;

public class BasicAuthorityService implements AuthorityService {
    private static final String PREFIX_ROLE = "ROLE_";

    @Override
    public Collection<GrantedAuthority> createAuthorities(String authorization) {
        Collection<GrantedAuthority> authorities = Lists.newArrayList();
        for (Authority roleType : Authority.values()) {
            final String roleAuthority = roleType.toString();
            if (matchRoles(authorization, roleAuthority)) {
                authorities.add(createAuthority(roleAuthority));
            }
        }
        return authorities;
    }

    private boolean matchRoles(String authorization, String roleAuthority) {
        final String authorizationName = StringUtils.removeStart(roleAuthority, PREFIX_ROLE);
        return StringUtils.containsIgnoreCase(authorization, authorizationName);
    }

    private GrantedAuthority createAuthority(String roleAuthority) {
        return new SimpleGrantedAuthority(roleAuthority);
    }

}