Example #1
0
  /**
   * @param context the Servlet context.
   * @deprecated Now handled in TdsContext.init().
   */
  public static void initContext(ServletContext context) {
    //    setContextPath(context);
    if (contextPath == null) {
      // Servlet 2.5 allows the following.
      // contextPath = servletContext.getContextPath();
      String tmpContextPath =
          context.getInitParameter("ContextPath"); // cannot be overridden in the ThreddsConfig file
      if (tmpContextPath == null) tmpContextPath = "thredds";
      contextPath = "/" + tmpContextPath;
    }
    //    setRootPath(context);
    if (rootPath == null) {
      rootPath = context.getRealPath("/");
      rootPath = rootPath.replace('\\', '/');
    }

    //    setContentPath();
    if (contentPath == null) {
      String tmpContentPath = "../../content" + getContextPath() + "/";
      File cf = new File(getRootPath(), tmpContentPath);
      try {
        contentPath = cf.getCanonicalPath() + "/";
        contentPath = contentPath.replace('\\', '/');
      } catch (IOException e) {
        throw new RuntimeException(e.getMessage());
      }
    }

    //    initDebugging(context);
    initDebugging(context);
  }
  private Element getDescription(String task) {

    if (task != null) {

      if (task.equals("define")) return definer.getDescription();

      if (task.equals("compare")) return comparer.getDescription();

      if (task.equals("search")) return searcher.getDescription();

      if (task.equals("wikify")) return wikifier.getDescription();
    }

    Element description = doc.createElement("Description");

    description.appendChild(
        createElement(
            "Details",
            "<p>This servlet provides a range of services for mining information from Wikipedia. Further details depend on what you want to do.</p>"
                + "<p>You can <a href=\""
                + context.getInitParameter("service_name")
                + "?task=search&help\">search for pages</a>, <a href=\""
                + context.getInitParameter("service_name")
                + "?task=compare&help\">measure how terms or articles related to each other</a>, <a href=\""
                + context.getInitParameter("service_name")
                + "?task=define&help\">obtain short definitions from articles</a>, and <a href=\""
                + context.getInitParameter("service_name")
                + "?task=wikify&help\">detect topics in web pages</a>.</p>"));

    Element paramTask =
        createElement(
            "Parameter",
            "Specifies what you want to do: can be <em>search</em>, <em>compare</em>, <em>define</em>, or <em>wikify</em>");
    paramTask.setAttribute("name", "task");
    description.appendChild(paramTask);

    Element paramId = doc.createElement("Parameter");
    paramId.setAttribute("name", "help");
    paramId.appendChild(doc.createTextNode("Specifies that you want help about the service."));
    description.appendChild(paramId);

    return description;
  }
Example #3
0
  public static void initDebugging(ServletContext webapp) {
    if (isDebugInit) return;
    isDebugInit = true;

    String debugOn = webapp.getInitParameter("DebugOn");
    if (debugOn != null) {
      StringTokenizer toker = new StringTokenizer(debugOn);
      while (toker.hasMoreTokens()) Debug.set(toker.nextToken(), true);
    }
  }
Example #4
0
  private void servletEnv() {
    if (!log.isDebugEnabled()) return;

    try {
      java.net.URL url = servletContext.getResource("/");
      log.trace("Joseki base directory: " + url);
    } catch (Exception ex) {
    }

    if (servletConfig != null) {
      String tmp = servletConfig.getServletName();
      log.trace("Servlet = " + (tmp != null ? tmp : "<null>"));
      @SuppressWarnings("unchecked")
      Enumeration<String> en = servletConfig.getInitParameterNames();

      for (; en.hasMoreElements(); ) {
        String s = en.nextElement();
        log.trace("Servlet parameter: " + s + " = " + servletConfig.getInitParameter(s));
      }
    }
    if (servletContext != null) {
      // Name of webapp
      String tmp = servletContext.getServletContextName();
      // msg(Level.FINE, "Webapp = " + (tmp != null ? tmp : "<null>"));
      log.debug("Webapp = " + (tmp != null ? tmp : "<null>"));

      // NB This servlet may not have been loaded as part of a web app
      @SuppressWarnings("unchecked")
      Enumeration<String> en = servletContext.getInitParameterNames();
      for (; en.hasMoreElements(); ) {
        String s = en.nextElement();
        log.debug("Webapp parameter: " + s + " = " + servletContext.getInitParameter(s));
      }
    }
    /*
    for ( Enumeration enum = servletContext.getAttributeNames() ;  enum.hasMoreElements() ; )
    {
        String s = (String)enum.nextElement() ;
        logger.log(LEVEL, "Webapp attribute: "+s+" = "+context.getAttribute(s)) ;
    }
     */
  }
  /**
   * Initializes the servlet context, based on the servlet context. Parses all context parameters
   * and passes them on to the database context.
   *
   * @param sc servlet context
   * @throws IOException I/O exception
   */
  static synchronized void init(final ServletContext sc) throws IOException {
    // skip process if context has already been initialized
    if (context != null) return;

    // set servlet path as home directory
    final String path = sc.getRealPath("/");
    System.setProperty(Prop.PATH, path);

    // parse all context parameters
    final HashMap<String, String> map = new HashMap<String, String>();
    // store default web root
    map.put(MainProp.HTTPPATH[0].toString(), path);

    final Enumeration<?> en = sc.getInitParameterNames();
    while (en.hasMoreElements()) {
      final String key = en.nextElement().toString();
      if (!key.startsWith(Prop.DBPREFIX)) continue;

      // only consider parameters that start with "org.basex."
      String val = sc.getInitParameter(key);
      if (eq(key, DBUSER, DBPASS, DBMODE, DBVERBOSE)) {
        // store servlet-specific parameters as system properties
        System.setProperty(key, val);
      } else {
        // prefix relative paths with absolute servlet path
        if (key.endsWith("path") && !new File(val).isAbsolute()) {
          val = path + File.separator + val;
        }
        // store remaining parameters (without project prefix) in map
        map.put(key.substring(Prop.DBPREFIX.length()).toUpperCase(Locale.ENGLISH), val);
      }
    }
    context = new Context(map);

    if (SERVER.equals(System.getProperty(DBMODE))) {
      new BaseXServer(context);
    } else {
      context.log = new Log(context);
    }
  }
Example #6
0
  public static void showServletInfo(HttpServlet servlet, PrintStream out) {
    out.println("Servlet Info");
    out.println(" getServletName(): " + servlet.getServletName());
    out.println(" getRootPath(): " + getRootPath());
    out.println(" Init Parameters:");
    Enumeration params = servlet.getInitParameterNames();
    while (params.hasMoreElements()) {
      String name = (String) params.nextElement();
      out.println("  " + name + ": " + servlet.getInitParameter(name));
    }
    out.println();

    ServletContext context = servlet.getServletContext();
    out.println("Context Info");

    try {
      out.println(" context.getResource('/'): " + context.getResource("/"));
    } catch (java.net.MalformedURLException e) {
    } // cant happen
    out.println(" context.getServerInfo(): " + context.getServerInfo());
    out.println("  name: " + getServerInfoName(context.getServerInfo()));
    out.println("  version: " + getServerInfoVersion(context.getServerInfo()));

    out.println(" context.getInitParameterNames():");
    params = context.getInitParameterNames();
    while (params.hasMoreElements()) {
      String name = (String) params.nextElement();
      out.println("  " + name + ": " + context.getInitParameter(name));
    }

    out.println(" context.getAttributeNames():");
    params = context.getAttributeNames();
    while (params.hasMoreElements()) {
      String name = (String) params.nextElement();
      out.println("  context.getAttribute(\"" + name + "\"): " + context.getAttribute(name));
    }

    out.println();
  }
Example #7
0
  /**
   * Initializes the database context, based on the initial servlet context. Parses all context
   * parameters and passes them on to the database context.
   *
   * @param sc servlet context
   * @throws IOException I/O exception
   */
  public static synchronized void init(final ServletContext sc) throws IOException {
    // check if HTTP context has already been initialized
    if (init) return;
    init = true;

    // set web application path as home directory and HTTPPATH
    final String webapp = sc.getRealPath("/");
    Options.setSystem(Prop.PATH, webapp);
    Options.setSystem(GlobalOptions.WEBPATH, webapp);

    // bind all parameters that start with "org.basex." to system properties
    final Enumeration<String> en = sc.getInitParameterNames();
    while (en.hasMoreElements()) {
      final String key = en.nextElement();
      if (!key.startsWith(Prop.DBPREFIX)) continue;

      String val = sc.getInitParameter(key);
      if (key.endsWith("path") && !new File(val).isAbsolute()) {
        // prefix relative path with absolute servlet path
        Util.debug(key.toUpperCase(Locale.ENGLISH) + ": " + val);
        val = new IOFile(webapp, val).path();
      }
      Options.setSystem(key, val);
    }

    // create context, update options
    if (context == null) {
      context = new Context(false);
    } else {
      context.globalopts.setSystem();
      context.options.setSystem();
    }

    // start server instance
    if (!context.globalopts.get(GlobalOptions.HTTPLOCAL)) new BaseXServer(context);
  }
  public void init(ServletConfig config) throws ServletException {
    super.init(config);
    ctx = config.getServletContext();
    // set the response content type
    if (ctx.getInitParameter("responseContentType") != null) {
      responseContentType = ctx.getInitParameter("responseContentType");
    }
    // allow for resources dir over-ride at the xhp level otherwise allow
    // for the jmaki level resources
    if (ctx.getInitParameter("jmaki-xhp-resources") != null) {
      resourcesDir = ctx.getInitParameter("jmaki-xhp-resources");
    } else if (ctx.getInitParameter("jmaki-resources") != null) {
      resourcesDir = ctx.getInitParameter("jmaki-resources");
    }
    // allow for resources dir over-ride
    if (ctx.getInitParameter("jmaki-classpath-resources") != null) {
      classpathResourcesDir = ctx.getInitParameter("jmaki-classpath-resources");
    }

    String requireSessionString = ctx.getInitParameter("requireSession");
    if (requireSessionString != null) {
      if ("false".equals(requireSessionString)) {
        requireSession = false;
        getLogger().severe("XmlHttpProxyServlet: intialization. Session requirement disabled.");
      } else if ("true".equals(requireSessionString)) {
        requireSession = true;
        getLogger().severe("XmlHttpProxyServlet: intialization. Session requirement enabled.");
      }
    }
    String xdomainString = ctx.getInitParameter("allowXDomain");
    if (xdomainString != null) {
      if ("true".equals(xdomainString)) {
        allowXDomain = true;
        getLogger().severe("XmlHttpProxyServlet: intialization. xDomain access is enabled.");
      } else if ("false".equals(xdomainString)) {
        allowXDomain = false;
        getLogger().severe("XmlHttpProxyServlet: intialization. xDomain access is disabled.");
      }
    }
    // if there is a proxyHost and proxyPort specified create an HttpClient with the proxy
    String proxyHost = ctx.getInitParameter("proxyHost");
    String proxyPortString = ctx.getInitParameter("proxyPort");
    if (proxyHost != null && proxyPortString != null) {
      int proxyPort = 8080;
      try {
        proxyPort = new Integer(proxyPortString).intValue();
        xhp = new XmlHttpProxy(proxyHost, proxyPort);
      } catch (NumberFormatException nfe) {
        getLogger()
            .severe("XmlHttpProxyServlet: intialization error. The proxyPort must be a number");
        throw new ServletException(
            "XmlHttpProxyServlet: intialization error. The proxyPort must be a number");
      }
    } else {
      xhp = new XmlHttpProxy();
    }
  }
  public void init(ServletConfig config) throws ServletException {
    super.init(config);
    context = config.getServletContext();

    TextProcessor tp = new CaseFolder();

    try {
      wikipedia =
          new Wikipedia(
              context.getInitParameter("mysql_server"),
              context.getInitParameter("mysql_database"),
              context.getInitParameter("mysql_user"),
              context.getInitParameter("mysql_password"));
    } catch (Exception e) {
      throw new ServletException("Could not connect to wikipedia database.");
    }

    // Escaper escaper = new Escaper() ;

    definer = new Definer(this);
    comparer = new Comparer(this);
    searcher = new Searcher(this);

    try {
      wikifier = new Wikifier(this, tp);

    } catch (Exception e) {
      System.err.println("Could not initialize wikifier");
    }

    try {
      File dataDirectory = new File(context.getInitParameter("data_directory"));

      if (!dataDirectory.exists() || !dataDirectory.isDirectory()) {
        throw new Exception();
      }

      cachingThread = new CacherThread(dataDirectory, tp);
      cachingThread.start();
    } catch (Exception e) {
      throw new ServletException("Could not locate wikipedia data directory.");
    }

    try {
      TransformerFactory tf = TransformerFactory.newInstance();

      transformersByName = new HashMap<String, Transformer>();
      transformersByName.put(
          "help", buildTransformer("help", new File("/research/wikipediaminer/web/xsl"), tf));
      transformersByName.put(
          "loading", buildTransformer("loading", new File("/research/wikipediaminer/web/xsl"), tf));
      transformersByName.put(
          "search", buildTransformer("search", new File("/research/wikipediaminer/web/xsl"), tf));
      transformersByName.put(
          "compare", buildTransformer("compare", new File("/research/wikipediaminer/web/xsl"), tf));
      transformersByName.put(
          "wikify", buildTransformer("wikify", new File("/research/wikipediaminer/web/xsl"), tf));

      Transformer serializer = TransformerFactory.newInstance().newTransformer();
      serializer.setOutputProperty(OutputKeys.INDENT, "yes");
      serializer.setOutputProperty(OutputKeys.METHOD, "xml");
      serializer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "3");
      transformersByName.put("serializer", serializer);

    } catch (Exception e) {
      throw new ServletException("Could not load xslt library.");
    }
  }
  public void doGet(HttpServletRequest request, HttpServletResponse response)
      throws IOException, ServletException {

    try {

      response.setHeader("Cache-Control", "no-cache");
      response.setCharacterEncoding("UTF-8");

      String task = request.getParameter("task");

      Element data = null;

      // process help request
      if (request.getParameter("help") != null) data = getDescription(task);

      // redirect to home page if there is no task
      if (data == null && task == null) {
        response.setContentType("text/html");
        response
            .getWriter()
            .append(
                "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 Transitional//EN\"><html><head><meta http-equiv=\"REFRESH\" content=\"0;url="
                    + context.getInitParameter("server_path")
                    + "></head><body></body></html>");
        return;
      }

      // process definition request
      if (data == null && task.equals("define")) {
        int id = resolveIntegerArg(request.getParameter("id"), -1);
        int length = resolveIntegerArg(request.getParameter("length"), definer.getDefaultLength());
        int format = resolveIntegerArg(request.getParameter("format"), definer.getDefaultFormat());
        int maxImageWidth =
            resolveIntegerArg(
                request.getParameter("maxImageWidth"), definer.getDefaultMaxImageWidth());
        int maxImageHeight =
            resolveIntegerArg(
                request.getParameter("maxImageHeight"), definer.getDefaultMaxImageHeight());
        int linkDestination =
            resolveIntegerArg(
                request.getParameter("linkDestination"), definer.getDefaultLinkDestination());
        boolean getImages = resolveBooleanArg(request.getParameter("getImages"), false);

        data =
            definer.getDefinition(
                id, length, format, linkDestination, getImages, maxImageWidth, maxImageHeight);
      }

      // all of the remaining tasks require data to be cached, so lets make sure that is finished
      // before continuing.
      if (!cachingThread.isOk()) throw new ServletException("Could not cache wikipedia data");

      double progress = cachingThread.getProgress();
      if (data == null && (progress < 1 || task.equals("progress"))) {
        // still caching up data, not ready to return a response yet.

        data = doc.createElement("loading");
        data.setAttribute("progress", df.format(progress));
        task = "loading";
      }

      // process search request
      if (data == null && task.equals("search")) {
        String term = request.getParameter("term");
        String id = request.getParameter("id");
        int linkLimit =
            resolveIntegerArg(request.getParameter("linkLimit"), searcher.getDefaultMaxLinkCount());
        int senseLimit =
            resolveIntegerArg(
                request.getParameter("senseLimit"), searcher.getDefaultMaxSenseCount());

        if (id == null) data = searcher.doSearch(term, linkLimit, senseLimit);
        else data = searcher.doSearch(Integer.parseInt(id), linkLimit);
      }

      // process compare request
      if (data == null && task.equals("compare")) {
        String term1 = request.getParameter("term1");
        String term2 = request.getParameter("term2");
        int linkLimit =
            resolveIntegerArg(request.getParameter("linkLimit"), comparer.getDefaultMaxLinkCount());
        boolean details =
            resolveBooleanArg(request.getParameter("details"), comparer.getDefaultShowDetails());

        data = comparer.getRelatedness(term1, term2, details, linkLimit);
      }

      // process wikify request
      if (data == null && task.equals("wikify")) {

        if (this.wikifier == null)
          throw new ServletException(
              "Wikifier is not available. You must configure the servlet so that it has access to link detection and disambiguation models.");

        String source = request.getParameter("source");
        int sourceMode =
            resolveIntegerArg(request.getParameter("sourceMode"), Wikifier.SOURCE_AUTODETECT);
        String linkColor = request.getParameter("linkColor");
        String baseColor = request.getParameter("baseColor");
        double minProb =
            resolveDoubleArg(
                request.getParameter("minProbability"), wikifier.getDefaultMinProbability());
        int repeatMode =
            resolveIntegerArg(request.getParameter("repeatMode"), wikifier.getDefaultRepeatMode());
        boolean showTooltips =
            resolveBooleanArg(
                request.getParameter("showTooltips"), wikifier.getDefaultShowTooltips());
        String bannedTopics = request.getParameter("bannedTopics");

        boolean wrapInXml = resolveBooleanArg(request.getParameter("wrapInXml"), true);

        if (wrapInXml) {
          data =
              wikifier.wikifyAndWrapInXML(
                  source,
                  sourceMode,
                  minProb,
                  repeatMode,
                  bannedTopics,
                  baseColor,
                  linkColor,
                  showTooltips);
        } else {
          response.setContentType("text/html");
          response
              .getWriter()
              .append(
                  wikifier.wikify(
                      source,
                      sourceMode,
                      minProb,
                      repeatMode,
                      bannedTopics,
                      baseColor,
                      linkColor,
                      showTooltips));
          return;
        }
      }

      if (data == null) throw new Exception("Unknown Task");

      // wrap data
      Element wrapper = doc.createElement("WikipediaMinerResponse");
      wrapper.setAttribute("server_path", context.getInitParameter("server_path"));
      wrapper.setAttribute("service_name", context.getInitParameter("service_name"));
      wrapper.appendChild(data);

      data = wrapper;

      // Transform or serialize xml data as appropriate

      Transformer tf = null;

      if (request.getParameter("xml") == null) {
        // we need to transform the data into html
        tf = transformersByName.get(task);

        if (request.getParameter("help") != null) tf = transformersByName.get("help");
      }

      if (tf == null) {
        // we need to serialize the data as xml
        tf = transformersByName.get("serializer");
        response.setContentType("application/xml");
      } else {
        // output will be transformed to html
        response.setContentType("text/html");
        response
            .getWriter()
            .append(
                "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01//EN\" \"http://www.w3.org/TR/html4/strict.dtd\">\n");
      }

      tf.transform(new DOMSource(data), new StreamResult(response.getWriter()));

    } catch (Exception error) {
      response.reset();
      response.setContentType("application/xml");
      response.setHeader("Cache-Control", "no-cache");
      response.setCharacterEncoding("UTF8");

      Element xmlError = doc.createElement("Error");
      if (error.getMessage() != null) xmlError.setAttribute("message", error.getMessage());

      Element xmlStackTrace = doc.createElement("StackTrace");
      xmlError.appendChild(xmlStackTrace);

      for (StackTraceElement ste : error.getStackTrace()) {

        Element xmlSte = doc.createElement("StackTraceElement");
        xmlSte.setAttribute("message", ste.toString());
        xmlStackTrace.appendChild(xmlSte);
      }
      try {
        transformersByName
            .get("serializer")
            .transform(new DOMSource(xmlError), new StreamResult(response.getWriter()));
      } catch (Exception e) {
        // TODO: something for when an error is thrown processing an error????

      }
      ;
    }
  }
 @Override
 public String getInitParameter(String s) {
   return proxy.getInitParameter(s);
 }
Example #12
0
 /** {@inheritDoc} */
 public String getParameter(String pName) {
   return servletContext.getInitParameter(pName);
 }
 public String getInitParameter(String arg0) {
   return servletContext.getInitParameter(arg0);
 }