edu.umn.se.trap.rule.businessrule.GrantAuthorizationRule.java Source code

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Here is the source code for edu.umn.se.trap.rule.businessrule.GrantAuthorizationRule.java

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/*
Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements.  See the NOTICE file
distributed with this work for additional information
regarding copyright ownership.  The ASF 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
    
    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 edu.umn.se.trap.rule.businessrule;

import java.util.Iterator;
import java.util.Set;

import org.apache.commons.lang3.StringUtils;

import edu.umn.se.trap.TrapException;
import edu.umn.se.trap.form.FormGrant;
import edu.umn.se.trap.form.FormUser;
import edu.umn.se.trap.form.GrantSet;
import edu.umn.se.trap.form.TrapForm;
import edu.umn.se.trap.rule.AbstractRule;
import edu.umn.se.trap.util.TrapErrors;

/**
 * @author Andrew
 * 
 */
public class GrantAuthorizationRule extends AbstractRule {
    @Override
    public void validateRule(TrapForm form) throws TrapException {
        GrantSet grantSet = form.getGrantSet();

        if (grantSet == null) {
            throw new TrapException("Invalid TrapForm object: grantSet was null.");
        }

        Set<FormGrant> grants = grantSet.getGrants();

        if (grants == null) {
            throw new TrapException("Invalid TrapForm object: grants was null.");
        }

        FormUser formUser = form.getUser();

        if (formUser == null) {
            throw new TrapException("Invalid TrapForm object: user was null.");
        }

        checkGrantAuthorization(grants, formUser);

    }

    /**
     * @param grants, formUser
     * @throws TrapException
     */
    protected void checkGrantAuthorization(Set<FormGrant> grants, FormUser formUser) throws TrapException {
        Iterator<FormGrant> grantIter = grants.iterator();

        String user = formUser.getUserName();

        while (grantIter.hasNext()) {
            FormGrant grant = grantIter.next();

            boolean authorizedFlag = false;

            String[] authorized = grant.getAuthorizedPayees();

            for (int i = 0; i < authorized.length; i++) {
                if (StringUtils.equalsIgnoreCase(user, authorized[i])) {
                    authorizedFlag = true;
                }
            }

            if (authorizedFlag != true) {
                throw new TrapException(TrapErrors.USER_NOT_AUTORIZED);
            }

        }

    }

}