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package dk.thoerup.traininfoservice.banedk;
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import java.io.IOException;
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import java.io.PrintWriter;
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import java.net.URL;
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import java.net.URLDecoder;
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import java.net.URLEncoder;
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import java.util.Map;
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import java.util.Set;
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import java.util.TreeMap;
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import java.util.TreeSet;
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import javax.servlet.ServletException;
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import javax.servlet.annotation.WebServlet;
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import javax.servlet.http.HttpServlet;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import org.jsoup.nodes.Document;
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import org.jsoup.nodes.Element;
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import org.jsoup.select.Elements;
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import dk.thoerup.android.traininfo.common.StationBean;
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import dk.thoerup.android.traininfo.common.StationEntry;
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import dk.thoerup.circuitbreaker.CircuitBreaker;
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import dk.thoerup.circuitbreaker.CircuitBreakerManager;
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import dk.thoerup.traininfoservice.db.StationDAO;
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import dk.thoerup.genericjavautils.TimeoutMap;
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@WebServlet(urlPatterns={"/CompareStations"})
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public class CompareStations extends HttpServlet {
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private static final long serialVersionUID = 1L;
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Map<String,String> cache = new TimeoutMap<String,String>(600 * 1000);
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protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
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try {
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String data = "";
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String uri = request.getParameter("uri");
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if (uri != null) {
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boolean require = Boolean.parseBoolean( request.getParameter("requiredata") );
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data = hasData(uri, require);
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} else {
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data = getData(request);
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}
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PrintWriter out = response.getWriter();
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out.print(data);
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} catch (Exception e) {
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throw new ServletException(e);
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}
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}
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String getData(HttpServletRequest request) throws Exception {
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CircuitBreaker cb = CircuitBreakerManager.getManager().getCircuitBreaker("banedk");
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JsoupInvocation jsoup = new JsoupInvocation(new URL("http://trafikinfo.bane.dk/Trafikinformation/Stationsliste"), 5000);
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Map<String,String> banedkStations = new TreeMap<String,String>();
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Set<String> dbStations = new TreeSet<String>();
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StringBuilder sb = new StringBuilder();
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sb.append("<html>");
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sb.append("<head>");
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sb.append("<script type='text/javascript' src='https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js'></script>\n");
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sb.append("<script type='text/javascript' src='compareloader.js'></script>\n");
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sb.append("</head>");
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sb.append("<body>");
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StationDAO dao = new StationDAO();
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try {
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Document doc = (Document) cb.invoke(jsoup);
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Elements tables = doc.getElementsByClass("Oversigt");
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for(Element e : tables) {
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if (e.tagName().equals("table") ){
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Elements links = e.getElementsByTag("a");
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for (Element link : links) {
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banedkStations.put( link.text(), link.attr("href") );
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}
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}
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}
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StationBean bean = dao.dumpAll();
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////////////////////////////////
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sb.append("<h2>Duplicate ID's in DB</h2>\n");
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sb.append("<ul>");
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Map<String,String> stationIDS = new TreeMap<String,String>();
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for (StationEntry station : bean.entries) {
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if (station.isRegional()) {
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String id = station.getRegional();
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String oldstation = stationIDS.get(id);
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if (oldstation == null) {
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stationIDS.put(id, station.getName());
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} else {
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sb.append("<li> Duplicate found on key=" + id + " old station=" + oldstation + " current=" + station.getName());
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}
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}
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if (station.isStrain()) {
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String id = station.getStrain();
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String oldstation= stationIDS.get(id);
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if (oldstation == null) {
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stationIDS.put(id, station.getName());
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} else {
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sb.append("<li> Duplicate found on key=" + id + " old station=" + oldstation + " current=" + station.getName());
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}
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}
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}
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sb.append("</ul>");
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////////////////////////////////
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sb.append("<h2>Active stations in DB</h2>\n");
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sb.append("<ul>");
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for (StationEntry station : bean.entries) {
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if (station.isRegional() || station.isStrain()) {
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String href = banedkStations.get(station.getName() );
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String hrefCode = "null";
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if ( href != null) {
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String hrefParts[] = href.split("/");
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hrefCode = URLDecoder.decode(hrefParts[4], "UTF-8");
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}
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String id = "";
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String uri = "";
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if (station.isRegional() ) {
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id = station.getRegional();
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uri = "/Trafikinformation/AfgangAnkomst/Afgang/" + id + "/Fjerntog";
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}
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if (station.isStrain() ) {
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id = station.getStrain();
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uri = "/Trafikinformation/AfgangAnkomst/Afgang/" + id + "/S-Tog";
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}
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String idMismatch = "";
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if (!hrefCode.equals(id) ) {
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idMismatch = " ID Mismatch (DB="+id+ ", BaneDK=" + hrefCode + ")";
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}
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sb.append( "<li><a target='_blank' href='http://trafikinfo.bane.dk" + uri + "'>" + station.getName() + "</a> <span class='uri' requiredata='true' uri='" + uri + "'></span> " + idMismatch + "</li>\n" );
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dbStations.add(station.getName());
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}
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}
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sb.append("</ul>\n");
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} catch (Exception e) {
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throw new ServletException(e);
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}
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sb.append("<h2>stations on website not in db</h2>\n");
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sb.append("<ul>");
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Set<String> tmpDbStations = new TreeSet<String>( dbStations );
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Set<String> tmpBanedkStations = new TreeSet<String>( banedkStations.keySet()) ;
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tmpBanedkStations.removeAll(tmpDbStations);
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for(String s : tmpBanedkStations) {
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String uri = banedkStations.get(s);
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String disabled = "";
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//String data = hasData(uri, false);
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try {
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boolean tmpdisabled = dao.hasDisabledStation(s);
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if (tmpdisabled == true)
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disabled = " - disabled";
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} catch (Exception e) {
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throw new ServletException(e);
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}
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sb.append( "<li><a target='_blank' href='http://trafikinfo.bane.dk" + uri + "'>" + s + "</a> <span class='uri' requiredata='false' uri='" + uri + "'></span>" + disabled + "</li>\n" );
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}
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sb.append("</ul>");
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sb.append("<h2>stations in db not on website </h2>");
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sb.append("<ul>");
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tmpDbStations = new TreeSet<String>( dbStations );
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tmpBanedkStations = new TreeSet<String>( banedkStations.keySet() ) ;
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tmpDbStations.removeAll(tmpBanedkStations);
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for(String s : tmpDbStations) {
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sb.append( "<li>" + s + "</li>\n" );
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}
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sb.append("</ul>");
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sb.append("<font size='1' id='antal'></font>");
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sb.append("</body></html>\n");
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return sb.toString();
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}
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String hasData(String uri, boolean requiredata) {
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String key = uri + requiredata;
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String data = cache.get(key);
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if (data == null) {
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data = "<font color='yellow'>unknown</font>";
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try {
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data = hasDataWorker(uri,requiredata);
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cache.put(key,data);
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} catch (Exception e) {
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System.out.println( e.getMessage() );
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}
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}
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return data;
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}
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String hasDataWorker(String uri, boolean requiredata) throws Exception {
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String returnVal = "";
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String parts[] = uri.split("\\/");
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String id = URLEncoder.encode(parts[4], "ISO-8859-1");
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String uri2 = "/TrafikInformation/AfgangAnkomst/Afgang/" + id + "/" + parts[5];
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CircuitBreaker cb = CircuitBreakerManager.getManager().getCircuitBreaker("banedk");
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JsoupInvocation jsoup = new JsoupInvocation(new URL("http://trafikinfo.bane.dk" + uri2), 2000);
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Document doc = (Document) cb.invoke(jsoup);
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Element tabel = doc.getElementById("afgangtabel");
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if ( tabel != null) {
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if (requiredata == true) {
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returnVal = "";
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} else {
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returnVal = "<font color='red'>Data!</font>";
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}
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} else {
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if (requiredata == true) {
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returnVal = "<font color='red'>No data</font>";
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} else {
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returnVal = "";
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}
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}
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return returnVal;
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}
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}
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