org.openmrs.module.restmodule.web.HL7MessageResource.java Source code

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Here is the source code for org.openmrs.module.restmodule.web.HL7MessageResource.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.restmodule.web;

import java.io.IOException;

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

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.openmrs.api.context.Context;
import org.openmrs.hl7.HL7InQueue;
import org.openmrs.hl7.HL7Service;
import org.openmrs.hl7.HL7Source;

/**
 * Provides RESTful access to the hl7 message facilities of OpenMRS
 */
public class HL7MessageResource implements RestResource {

    private static final Log log = LogFactory.getLog(HL7MessageResource.class);

    /**
     * Private Constants to Ease Maintenance
     */
    private final String MESSAGE = "message";
    private final String SOURCE = "source";

    /**
     * Handle all requests to this HL7Message resource
     */
    public void handleRequest(Operation operation, OutputType outputType, String restRequest,
            HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

        String message = request.getParameter(MESSAGE);
        String source = request.getParameter(SOURCE);

        switch (operation) {
        case POST:

            if (message == null || message.equals("")) {
                log.error("Missing a 'message' parameter");
                response.sendError(HttpServletResponse.SC_BAD_REQUEST);
                return;
            }
            if (source == null || source.equals("")) {
                log.error("Missing a 'source' parameter");
                response.sendError(HttpServletResponse.SC_BAD_REQUEST);
                return;
            }

            try {
                HL7Service hl7Service = Context.getHL7Service();
                HL7InQueue hl7Queue = new HL7InQueue();
                HL7Source hl7Source = hl7Service.getHL7SourceByName(source);

                if (hl7Source == null) {
                    log.error("HL7Source object not found with a name of: '" + source + "'");
                    response.sendError(HttpServletResponse.SC_BAD_REQUEST);
                    return;
                }

                hl7Queue.setHL7Source(hl7Source);
                hl7Queue.setHL7Data(message);
                hl7Service.saveHL7InQueue(hl7Queue);

            } catch (Exception e) {
                log.error("Error occurred while saving hl7 in queue", e);
                response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
                return;
            }

            break;

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

    }
}