org.openmrs.module.eidinterface.web.controller.PatientStatusController.java Source code

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Here is the source code for org.openmrs.module.eidinterface.web.controller.PatientStatusController.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.eidinterface.web.controller;

import liquibase.csv.opencsv.CSVWriter;
import org.openmrs.Patient;
import org.openmrs.PatientIdentifier;
import org.openmrs.api.context.Context;
import org.openmrs.patient.impl.LuhnIdentifierValidator;
import org.openmrs.util.OpenmrsUtil;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;

import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.StringReader;
import java.io.StringWriter;
import java.util.List;
import java.util.Scanner;

@Controller
public class PatientStatusController {

    Integer CCC_NUMBER_PATIENT_IDENTIFIER_ID = 28;

    @ResponseBody
    @RequestMapping(value = "module/eidinterface/getPatientStatus", method = RequestMethod.POST)
    public String getPatientStatus(HttpServletResponse response, @RequestBody String identifiers)
            throws IOException {

        StringWriter sw = new StringWriter();
        CSVWriter csv = new CSVWriter(sw);

        String[] header = { "Identifier", "Status", "CCC Number" };
        csv.writeNext(header);

        StringReader sr = new StringReader(identifiers);
        Scanner s = new Scanner(sr);

        // iterate through identifiers
        while (s.hasNext()) {

            String identifier = s.next().trim();

            String status;
            String ccc = "";

            String[] parts = identifier.split("-");
            String validIdentifier = new LuhnIdentifierValidator().getValidIdentifier(parts[0]);

            if (!OpenmrsUtil.nullSafeEquals(identifier, validIdentifier)) {
                status = "INVALID IDENTIFIER";
            } else {
                List<Patient> patients = Context.getPatientService().getPatients(null, identifier, null, true);
                if (patients != null && patients.size() == 1) {
                    Patient p = patients.get(0);
                    PatientIdentifier pi = p.getPatientIdentifier(CCC_NUMBER_PATIENT_IDENTIFIER_ID);
                    if (pi != null) {
                        status = "ENROLLED";
                        ccc = pi.getIdentifier();
                    } else {
                        status = "NOT ENROLLED";
                    }
                } else if (patients != null && patients.size() > 1) {
                    status = "MULTIPLE FOUND";
                } else {
                    status = "NOT FOUND";
                }
            }

            csv.writeNext(new String[] { identifier, status, ccc });
        }

        // flush the string writer
        sw.flush();

        // set the information
        response.setContentType("text/plain");
        response.setCharacterEncoding("UTF-8");

        // respond with it
        return sw.toString();
    }
}