org.kuali.kra.proposaldevelopment.bo.ProposalPersonComparator.java Source code

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Here is the source code for org.kuali.kra.proposaldevelopment.bo.ProposalPersonComparator.java

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/*
 * Copyright 2005-2010 The Kuali Foundation
 * 
 * Licensed under the Educational Community 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.osedu.org/licenses/ECL-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 org.kuali.kra.proposaldevelopment.bo;

import static org.apache.commons.lang.StringUtils.isNotBlank;
import static org.kuali.kra.infrastructure.KraServiceLocator.getService;

import java.util.Comparator;

import org.kuali.kra.proposaldevelopment.service.KeyPersonnelService;

/**
 * Used to order <code>{@link ProposalPerson}</code> instances by <code>{@link ProposalPersonRole}</code>.
 * 
 */
public class ProposalPersonComparator implements Comparator<ProposalPerson> {
    private static final org.apache.commons.logging.Log LOG = org.apache.commons.logging.LogFactory
            .getLog(ProposalPersonComparator.class);

    private KeyPersonnelService getKeyPersonnelService() {
        return getService(KeyPersonnelService.class);
    }

    /**
     * compare one <code>{@link ProposalPerson}</code> instance to another. Sort by <code>{@link ProposalPersonRole}</code> of the
     *  <code>{@link ProposalPerson}</code>
     * 
     * @param person1
     * @param person2
     * @return int
     */
    public int compare(ProposalPerson person1, ProposalPerson person2) {
        int retval = 0;
        DevelopmentProposal proposal = person1.getDevelopmentProposal();

        if (person1.isInvestigator() && person2.isInvestigator()) {
            if (getKeyPersonnelService().isPrincipalInvestigator(person1)
                    || getKeyPersonnelService().isPrincipalInvestigator(person2)) {
                if (getKeyPersonnelService().isPrincipalInvestigator(person1)) {
                    retval--;
                }

                if (getKeyPersonnelService().isPrincipalInvestigator(person2)) {
                    retval++;
                }
            } else if (proposal.isSponsorNihMultiplePi() && (getKeyPersonnelService().isCoInvestigator(person1)
                    || getKeyPersonnelService().isCoInvestigator(person2))) {
                if (person1.isMultiplePi()) {
                    retval--;
                }
                if (person2.isMultiplePi()) {
                    retval++;
                }
            }
        } else if (person1.isInvestigator()) {
            retval--;
        } else if (person2.isInvestigator()) {
            retval++;
        }

        if (retval == 0) {
            retval = massageOrdinalNumber(person1).compareTo(massageOrdinalNumber(person2));
        }

        if (retval == 0) {
            if (isNotBlank(person1.getFullName())) {
                retval = person1.getLastName().compareTo(person2.getLastName());
            } else if (isNotBlank(person2.getLastName())) {
                retval--;
            }
        }

        LOG.info("retval = " + retval);

        return retval;
    }

    private Integer massageOrdinalNumber(ProposalPerson person) {
        return person.getOrdinalPosition() != null ? person.getOrdinalPosition() : -1;
    }

}