ExternalPatientSearchResultsXMLConverter.java

/**
* The contents of this file are subject to the Mozilla Public License
* Version 1.1 (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.mozilla.org/MPL/
* 
* 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.
* 
* The Original Code is OpenELIS code.
* 
* Copyright (C) The Minnesota Department of Health.  All Rights Reserved.
*
* Contributor(s): CIRG, University of Washington, Seattle WA.
*/
package us.mn.state.health.lims.common.externalLinks;

import java.util.ArrayList;
import java.util.Calendar;
import java.util.GregorianCalendar;
import java.util.List;

import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;

import us.mn.state.health.lims.common.provider.query.PatientDemographicsSearchResults;
import us.mn.state.health.lims.common.util.DateUtil;

public class ExternalPatientSearchResultsXMLConverter {

	private static final String ELEMENT_MOTHERS_FIRST_NAME = "mothersFirstName";
	private static final String ATTRIBUTE_YEAR = "year";
	private static final String ATTRIBUTE_MONTH = "month";
	private static final String ATTRIBUTE_DAY = "day";
	private static final String ELEMENT_GUID = "GUID";
	private static final String ELEMENT_DOB = "DOB";
	private static final String ELEMENT_STNUMBER = "STNumber";
	private static final String ELEMENT_NATIONAL_ID = "nationalId";
	private static final String ELEMENT_GENDER = "gender";
	private static final String ELEMENT_LAST_NAME = "lastName";
	private static final String ELEMENT_FIRST_NAME = "firstName";
	private static final String ELEMENT_PATIENT = "Patient";
	private static final String ELEMENT_PATIENTS = "Patients";
	
	@SuppressWarnings("unchecked")
	public List<PatientDemographicsSearchResults> convertXMLToSearchResults(String resultXML) throws DocumentException{
		List<PatientDemographicsSearchResults> searchResults = new ArrayList<PatientDemographicsSearchResults>();
		
		Document replyDoc = DocumentHelper.parseText(resultXML);
		Element root = replyDoc.getRootElement();

		Element patients = root.element(ELEMENT_PATIENTS);
		List<Element> patientList = patients.elements(ELEMENT_PATIENT);

		for (Element patientElement : patientList) {
			PatientDemographicsSearchResults result = createSearchResult(patientElement);
			searchResults.add(result);
		}
		
		return searchResults;
	}

	private PatientDemographicsSearchResults createSearchResult(Element patientElement) {

		PatientDemographicsSearchResults result = new PatientDemographicsSearchResults();

		result.setFirstName(getValueFor(patientElement, ELEMENT_FIRST_NAME));
		result.setLastName(getValueFor(patientElement, ELEMENT_LAST_NAME));
		result.setGender(getValueFor(patientElement, ELEMENT_GENDER));
		result.setBirthdate(getDOBFromXML(patientElement));
		result.setNationalId(getValueFor(patientElement, ELEMENT_NATIONAL_ID));
		result.setStNumber(getValueFor(patientElement, ELEMENT_STNUMBER));
		result.setGUID(getValueFor(patientElement, ELEMENT_GUID));
		result.setMothersName(getValueFor(patientElement, ELEMENT_MOTHERS_FIRST_NAME));

		return result;
	}

	private String getDOBFromXML(Element patientElement) {
		Element DOBElement = patientElement.element(ELEMENT_DOB);

		if (DOBElement != null) {
			String day = DOBElement.attributeValue(ATTRIBUTE_DAY);
			String month = DOBElement.attributeValue(ATTRIBUTE_MONTH);
			String year = DOBElement.attributeValue(ATTRIBUTE_YEAR);

			if( year != null){
				Calendar date = new GregorianCalendar();

				date.set(Calendar.DATE, day == null ? 1 : Integer.parseInt(day));
				date.set(Calendar.MONTH, month == null ? 0 : Integer.parseInt(month) - 1);
				date.set(Calendar.YEAR, Integer.parseInt(year));

				return DateUtil.formatDateAsText(date.getTime());
			}
		}

		return null;
	}

	private String getValueFor(Element patientElement, String elementName) {
		Element namedElement = patientElement.element(elementName);
		return namedElement == null ? null : namedElement.getTextTrim();
	}

	
}