cz.lbenda.coursing.user.UserRole.java Source code

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Here is the source code for cz.lbenda.coursing.user.UserRole.java

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/*
 * Copyright 2014 Lukas Benda <lbenda at lbenda.cz>
 *
 * 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 cz.lbenda.coursing.user;

import cz.lbenda.coursing.server.security.UserDetailsImpl.GrantedAuthorityImpl;
import java.util.ArrayList;
import java.util.List;
import org.springframework.security.core.GrantedAuthority;

/** Enumeration of all user roles which is defined in application
 * @author Lukas Benda <lbenda at lbenda.cz>
 */
public enum UserRole {
    ADMIN, USER, GUEST,;

    private static final String ROLE_PREFIX = "ROLE_";

    public static String toString(UserRole[] roles) {
        StringBuilder result = new StringBuilder();
        for (UserRole role : roles) {
            if (result.length() > 0) {
                result.append(",");
            }
            result.append(role.name());
        }
        return result.toString();
    }

    public static UserRole[] toArray(String roles) {
        List<UserRole> result = new ArrayList<>();
        if (roles == null || "".equals(roles.trim())) {
            return new UserRole[0];
        }
        for (String role : roles.split(",")) {
            result.add(UserRole.valueOf(role.trim()));
        }
        return result.toArray(new UserRole[result.size()]);
    }

    public GrantedAuthority toGrantedAuthority() {
        return new GrantedAuthorityImpl(ROLE_PREFIX + this.name());
    }

    /** Return true if this role is in roles array */
    public boolean inArray(UserRole[] roles) {
        for (UserRole rol : roles) {
            if (this.equals(rol)) {
                return true;
            }
        }
        return false;
    }
}