OpenMRS

package org.openmrs.module.restmodule.web;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.openmrs.Patient;
import org.openmrs.api.context.Context;
import org.openmrs.module.restmodule.RestUtil;
import org.openmrs.module.restmodule.XmlPatient;

/**
 * Provides RESTful access to the patient search facilities of OpenMRS
 * 
 * @author Burke Mamlin
 * @version 1.0
 */
public class FindPatientResource implements RestResource {

        /**
         * Handle all requests to this patient search resource
         */
        public void handleRequest(Operation operation, String restRequest,
                        HttpServletRequest request, HttpServletResponse response)
                        throws ServletException, IOException {

                PrintWriter out = response.getWriter();

                switch (operation) {

                case GET:
                        List<Patient> patientList = Context.getPatientService()
                                        .findPatients(restRequest, false);

                        out.print("<patientList>");
                        int i = 0;
                        int max = RestUtil.getMaxResults();
                        for (Patient patient : patientList) {
                                out.print(XmlPatient.encode(patient));
                                i++;
                                if (max > 0 && i >= max)
                                        break; // if max set, abort before exceeding
                        }
                        out.print("</patientList>");
                        break;

                case POST:
                case PUT:
                case DELETE:
                        response.sendError(HttpServletResponse.SC_NOT_IMPLEMENTED);
                        return;
                }

        }

}