org.openmrs.module.clinicalsummary.rule.reminder.peds.polymerase.BaselinePolymeraseReminderRule.java Source code

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Here is the source code for org.openmrs.module.clinicalsummary.rule.reminder.peds.polymerase.BaselinePolymeraseReminderRule.java

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/**
 * The contents of this file are subject to the OpenMRS Public License
 * Version 1.0 (the "License"); you may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 * http://license.openmrs.org
 *
 * Software distributed under the License is distributed on an "AS IS"
 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
 * License for the specific language governing rights and limitations
 * under the License.
 *
 * Copyright (C) OpenMRS, LLC.  All Rights Reserved.
 */

package org.openmrs.module.clinicalsummary.rule.reminder.peds.polymerase;

import org.apache.commons.collections.CollectionUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.openmrs.Patient;
import org.openmrs.api.context.Context;
import org.openmrs.logic.LogicContext;
import org.openmrs.logic.LogicException;
import org.openmrs.logic.result.Result;
import org.openmrs.module.clinicalsummary.rule.EvaluableConstants;
import org.openmrs.module.clinicalsummary.rule.EvaluableNameConstants;
import org.openmrs.module.clinicalsummary.rule.EvaluableRule;
import org.openmrs.module.clinicalsummary.rule.observation.ObsWithRestrictionRule;
import org.openmrs.module.clinicalsummary.rule.observation.ObsWithStringRestrictionRule;
import org.openmrs.module.clinicalsummary.rule.reminder.ReminderParameters;
import org.openmrs.module.clinicalsummary.rule.reminder.peds.fragment.ValidPolymeraseRule;

import java.util.Arrays;
import java.util.Calendar;
import java.util.Date;
import java.util.Map;

/**
 */
public class BaselinePolymeraseReminderRule extends EvaluableRule {

    private static final Log log = LogFactory.getLog(BaselinePolymeraseReminderRule.class);

    public static final String TOKEN = "Baseline Polymerase Reminder";

    /**
     * @see org.openmrs.logic.Rule#eval(org.openmrs.logic.LogicContext, Integer, java.util.Map)
     */
    @Override
    protected Result evaluate(final LogicContext context, final Integer patientId,
            final Map<String, Object> parameters) throws LogicException {
        Result result = new Result();

        Patient patient = Context.getPatientService().getPatient(patientId);

        if (patient.getBirthdate() != null) {

            Calendar calendar = Calendar.getInstance();

            // 18 months after birth date
            calendar.setTime(patient.getBirthdate());
            calendar.add(Calendar.MONTH, 18);
            Date eighteenMonths = calendar.getTime();

            // 6 weeks after birth date
            calendar.setTime(patient.getBirthdate());
            calendar.add(Calendar.WEEK_OF_YEAR, 6);
            Date sixWeeks = calendar.getTime();

            if (sixWeeks.before(new Date()) && eighteenMonths.after(new Date())) {
                ValidPolymeraseRule validPolymeraseRule = new ValidPolymeraseRule();
                // only pull the positive and negative results
                parameters.put(EvaluableConstants.OBS_FETCH_SIZE, 1);
                parameters.put(EvaluableConstants.OBS_VALUE_CODED,
                        Arrays.asList(EvaluableNameConstants.POSITIVE, EvaluableNameConstants.NEGATIVE));
                parameters.put(EvaluableConstants.OBS_CONCEPT,
                        Arrays.asList(EvaluableNameConstants.HIV_DNA_POLYMERASE_CHAIN_REACTION_QUALITATIVE));
                Result validPolymeraseResults = validPolymeraseRule.eval(context, patientId, parameters);

                if (CollectionUtils.isEmpty(validPolymeraseResults)) {

                    // get the latest test ordered
                    parameters.put(EvaluableConstants.OBS_CONCEPT,
                            Arrays.asList(EvaluableNameConstants.TESTS_ORDERED));
                    parameters.put(EvaluableConstants.OBS_VALUE_CODED,
                            Arrays.asList(EvaluableNameConstants.HIV_DNA_POLYMERASE_CHAIN_REACTION_QUALITATIVE));

                    ObsWithRestrictionRule obsWithRestrictionRule = new ObsWithStringRestrictionRule();
                    Result testResults = obsWithRestrictionRule.eval(context, patientId, parameters);

                    calendar.setTime(patient.getBirthdate());
                    calendar.add(Calendar.WEEK_OF_YEAR, 4);
                    Date fourWeeks = calendar.getTime();

                    calendar.setTime(new Date());
                    calendar.add(Calendar.MONTH, -6);
                    Date sixMonthsAgo = calendar.getTime();

                    // if no test or the test was ordered more than six months ago, then show the reminder
                    if (CollectionUtils.isEmpty(testResults) || testResults.getResultDate().before(sixMonthsAgo)
                            || testResults.getResultDate().before(fourWeeks))
                        result.add(new Result(
                                String.valueOf(parameters.get(ReminderParameters.DISPLAYED_REMINDER_TEXT))));
                }
            }
        }

        return result;
    }

    /**
     * @see org.openmrs.logic.Rule#getDependencies()
     */
    @Override
    public String[] getDependencies() {
        return new String[] { ObsWithStringRestrictionRule.TOKEN };
    }

    /**
     * Get the token name of the rule that can be used to reference the rule from LogicService
     *
     * @return the token name
     */
    @Override
    protected String getEvaluableToken() {
        return TOKEN;
    }
}