org.kuali.kpme.core.service.timezone.TimezoneServiceImpl.java Source code

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Here is the source code for org.kuali.kpme.core.service.timezone.TimezoneServiceImpl.java

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/**
 * Copyright 2004-2013 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.opensource.org/licenses/ecl2.php
 *
 * 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.kpme.core.service.timezone;

import java.util.List;

import org.apache.commons.lang.StringUtils;
import org.joda.time.DateTimeZone;
import org.joda.time.LocalDate;
import org.kuali.kpme.core.job.Job;
import org.kuali.kpme.core.location.Location;
import org.kuali.kpme.core.principal.PrincipalHRAttributes;
import org.kuali.kpme.core.service.HrServiceLocator;
import org.kuali.kpme.core.util.TKUtils;
import org.kuali.rice.krad.util.GlobalVariables;

public class TimezoneServiceImpl implements TimezoneService {

    @Override
    public String getUserTimezone(String principalId) {
        PrincipalHRAttributes principalCalendar = HrServiceLocator.getPrincipalHRAttributeService()
                .getPrincipalCalendar(principalId, LocalDate.now());
        if (principalCalendar != null && principalCalendar.getTimezone() != null) {
            return principalCalendar.getTimezone();
        }
        List<Job> jobs = HrServiceLocator.getJobService().getJobs(principalId, LocalDate.now());
        if (jobs.size() > 0) {
            // Grab the location off the first job in the list
            Location location = HrServiceLocator.getLocationService().getLocation(jobs.get(0).getLocation(),
                    LocalDate.now());
            if (location != null) {
                if (StringUtils.isNotBlank(location.getTimezone())) {
                    return location.getTimezone();
                }
            }
        }
        return TKUtils.getSystemTimeZone();
    }

    /**
    * Used to determine if an override condition exists for a user timezone
    */
    @Override
    public String getUserTimezone() {
        String timezone = "";
        if (GlobalVariables.getUserSession() != null) {
            timezone = getUserTimezone(GlobalVariables.getUserSession().getPrincipalId());
        }
        return timezone;
    }

    @Override
    public DateTimeZone getUserTimezoneWithFallback() {
        String tzid = getUserTimezone();
        if (StringUtils.isEmpty(tzid)) {
            return TKUtils.getSystemDateTimeZone();
        } else {
            return DateTimeZone.forID(tzid);
        }
    }

    @Override
    public boolean isSameTimezone() {
        String userTimezone = getUserTimezone();
        if (StringUtils.isNotBlank(userTimezone)) {
            return StringUtils.equals(TKUtils.getSystemTimeZone(), userTimezone);
        }
        return true;
    }

}