Esempio n. 1
0
  /**
   * Directs a chart request to a ChartMediator.<br>
   * Referring to a given configuration (id), it directs a request for a chart to a ChartMediator
   * and returns the result.
   *
   * @param json String path to a .json file where request information are stored
   * @return a json-object which contains all information about the requested chart
   * @see ChartMediator
   */
  public JSONObject computeChart(JSONObject json) {
    if (json == null) {
      throw new IllegalArgumentException();
    }

    // checks whether a request is allowed
    if (!isInitialized()) {
      Printer.pproblem("Configurations & mediators not initalized!");
      Printer.print("-> Chart creation not possible!");
      return null;
    }

    if (!(tablesAreCreated())) {
      Printer.pproblem("Tables not created. Request not possible");
      return null;
    }

    // direct request and hopefully receive a JSON object
    JSONObject chart = chartMedi.computeChart(json);

    if (chart == null) {
      Printer.pfail("Computing chart.");
      return null;
    } else {
      Printer.psuccess("Computing chart.");
    }

    return chart;
  }
Esempio n. 2
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  /** Precomputes the Strings in the dimensions for the web page selection boxes. */
  private void computeDimensionData() {
    assert (isInitialized());

    if (!(dataMedi.organizeData())) {
      Printer.pfail("Precomputing data for dimensions.");
    } else {
      web.ChartHelper.reset();
      Printer.psuccess("Precomputing data for dimensions.");
    }
  }
Esempio n. 3
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  /**
   * Initializes this facade with a ConfigWrap, what is necessary to post requests to it.
   *
   * @param path of the configuration file (.json)
   * @return whether initialization was successful
   */
  public boolean init(final String path) {
    if (path == null) {
      throw new IllegalArgumentException();
    }

    // tries to build a new ConfigWrap
    ConfigWrap config = ConfigWrap.buildConfig(path);
    if (config == null) {
      Printer.pfail("Building ConfigWrap with the given path failed");
      return false;
    } else {
      Printer.psuccess("Building ConfigWrap for: " + config.getNameOfDB());
    }

    // set all the attributes
    currentConfig = config;
    dataMedi = new DataMediator(config);
    chartMedi = new ChartMediator(config, dataMedi);
    parsMedi = new ParserMediator(config, dataMedi);

    // testing
    // Printer.ptest(config.toString());

    // create tables for the configuration if necessary
    if (!(tablesAreCreated())) {
      Printer.print("Tables not created for this configuration. Will happen now.");
      if (!(createDBTables())) {
        Printer.pfail("Creating tables for this configuration");
        return false;
      } else {
        Printer.psuccess("Creating tables for this configuration");
      }
    }

    // pre-compute strings for the web page selection boxes
    computeDimensionData();

    Printer.psuccess("Initialize facade.");
    return true;
  }
Esempio n. 4
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  /**
   * Directs a parsing request to a ParserMediator.<br>
   * Referring to the given configuration (id), it directs the request of parsing a given log-file
   * (path) to a ParserMediator.
   *
   * @param path path of the log file, which has to be parsed
   * @return whether parsing this log file was successful, to a certain point; therefore {@linkplain
   *     ParserMediator}
   * @see ParserMediator
   */
  public boolean parseLogFile(String path) {
    if (path == null) {
      throw new IllegalArgumentException();
    }

    // Printer.ptest("creating tables: " + createDBTables());

    // testing
    // Printer.ptest("Start parsing task.");
    // long start = System.currentTimeMillis();

    // checks whether a request is allowed
    if (!isInitialized()) {
      Printer.pproblem("Configurations & mediators not initalized!");
      Printer.print("-> Parsing not possible!");
      return false;
    }

    if (!(tablesAreCreated())) {
      Printer.pproblem("Tables not created. Request not possible");
      return false;
    }

    // directs the request
    if (!parsMedi.parseLogFile(path)) {
      Printer.pfail("Parsing.");
      return false;
    } else {
      Printer.psuccess("Parsing.");
    }

    // testing
    // Printer.ptest("Completed parsing task. Time needed: " + (System.currentTimeMillis() -
    // start));

    // precompute strings for the web page selection boxes after parsinng
    computeDimensionData();

    return true;
  }