[1227] | 1 | package gov.va.med.edp.web.controller;
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| 2 |
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| 3 |
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| 4 | import javax.servlet.http.HttpServletRequest;
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| 5 | import javax.servlet.http.HttpServletResponse;
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| 6 | import javax.servlet.http.HttpSession;
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| 7 |
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| 8 | import org.apache.log4j.Logger;
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| 9 | import org.springframework.util.Assert;
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| 10 | import org.springframework.util.StringUtils;
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| 11 | import org.springframework.web.servlet.ModelAndView;
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| 12 |
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| 13 | /**
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| 14 | * TODO: document BigBoardClientVersionSynchronizationController
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| 15 | */
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| 16 | public class BigBoardClientVersionSynchronizationController extends ClientVersionSynchronizationController {
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| 17 |
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| 18 |
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| 19 | private String errorMsg;
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| 20 |
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| 21 | private static Logger logger = Logger.getLogger(BigBoardClientVersionSynchronizationController.class);
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| 22 |
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| 23 |
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| 24 | public void afterPropertiesSet() throws Exception {
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| 25 | setRequireSession(false);
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| 26 | super.afterPropertiesSet();
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| 27 | Assert.notNull(serverPackageVersionDao, "serverPackageVersionDao must not be null");
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| 28 | Assert.notNull(getSiteCodeDao(), "siteCodeDao is required");
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| 29 | Assert.notNull(getTrackingDao(), "trackingDao is required");
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| 30 |
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| 31 | }
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| 32 |
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| 33 | protected ModelAndView handleRequestInternal(HttpServletRequest request, HttpServletResponse response) throws Exception {
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| 34 | //First attempt is to get the machineName from HTTP Header:EdisClientMachineName as decided
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| 35 | // this HTTP header is appended by the load balancer and the value of this header (the machine name)
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| 36 | //is parsed by the load balancer.
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| 37 | String machineName = parseCNFromHttpHeaders(request.getHeader(MACHINE_NAME_HEADER));
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| 38 |
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| 39 | if (StringUtils.hasText(machineName)){
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| 40 | debug("Machine name obtained from HTTP Header:" + MACHINE_NAME_HEADER + " was: " + machineName);
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| 41 | } else {
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| 42 | debug("No Machine name was found in HTTP Header:" + MACHINE_NAME_HEADER );
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| 43 | machineName = getMachineNameFromUserPrincipalOrSessionOrRequest(request);
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| 44 | }
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| 45 | //set the machine name in an existing session for refreshes/restored sessions
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| 46 | HttpSession session = request.getSession(false);
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| 47 | if (session != null){
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| 48 | session.setAttribute(MACHINE_NAME_PARAM, machineName);
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| 49 | } else {
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| 50 | return createErrorModelAndView("Invalid Session was detected. Please try re-launching the EDIS Big Board");
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| 51 | }
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| 52 |
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| 53 | String siteCode = getSiteCodeDao().getSiteCode(machineName);
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| 54 | debug("Site Code Obtained for Machine: " + machineName + " was: " + siteCode);
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| 55 |
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| 56 | if (!StringUtils.hasText(siteCode)){
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| 57 | errorMsg = "A matching site code for the machine: " + machineName + " was not found in the EDP.SiteMapper table.\n" +
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| 58 | "Please contact the EDIS national help desk with this message for remedy.";
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| 59 | return createErrorModelAndView(errorMsg);
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| 60 | }
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| 61 |
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| 62 | String serverPackageVersion = (String) request.getSession().getAttribute(SessionConstants.SERVER_PACKAGE_VERSION_KEY);
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| 63 | if (serverPackageVersion == null) {
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| 64 | serverPackageVersion = serverPackageVersionDao.getServerPackageVersion(siteCode);
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| 65 | request.getSession().setAttribute(SessionConstants.SERVER_PACKAGE_VERSION_KEY, serverPackageVersion);
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| 66 | }
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| 67 | debug("serverPackageVersion is: " + serverPackageVersion);
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| 68 |
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| 69 | if (isBoardNameAvailableForMachine(siteCode, machineName, request)) return super.handleRequestInternal(request, response);
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| 70 |
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| 71 | return createErrorModelAndView(errorMsg);
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| 72 | }
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| 73 |
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| 74 | private boolean isBoardNameAvailableForMachine(String siteCode, String machineName, HttpServletRequest request) {
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| 75 | String result = getTrackingDao().executeCommand(siteCode, "0", buildParameterMap(request,machineName));
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| 76 | if (result.startsWith("<error>")){
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| 77 | int start = result.indexOf("<error>");
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| 78 | int end = result.indexOf("</error>");
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| 79 | errorMsg = result.substring(start + 7, end);
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| 80 | debug("isBoardNameAvailableForMachine: false");
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| 81 | return false;
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| 82 | }
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| 83 | debug("isBoardNameAvailableForMachine: true");
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| 84 | return true;
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| 85 | }
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| 86 |
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| 87 | private void debug(String s) {
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| 88 | if (logger.isDebugEnabled()){
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| 89 | logger.debug(s);
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| 90 | }
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| 91 | }
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| 92 |
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| 93 | }
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