Beispiel #1
0
  // Executes the given action
  public void executeAction(Action a) {

    // For each state variable, retrieve the DD for it, evaluate it
    // w.r.t. the current state and build a new state.
    ArrayList new_state = new ArrayList();
    int c;
    for (c = 0; c < (_nVars << 1); c++) {
      new_state.add("-");
    }
    for (c = 0; c < (_nVars << 1); c++) {
      Object cur_assign = _state.get(c);
      if (cur_assign instanceof Boolean) {
        // System.out.println(a._tmID2DD);
        int nonprime_id = c + 1;
        int prime_id = nonprime_id - _nVars;
        Object DD = a._tmID2DD.get(new Integer(prime_id));
        _state.set(prime_id - 1, TRUE);
        double p_true = _mdp._context.evaluate(DD, _state);
        // System.out.println("ID: " + nonprime_id + ", " + prime_id + ": " +
        //		   _mdp._context.printNode(DD) + " -> " +
        //		   _mdp._df.format(p_true));
        new_state.set(c, (_r.nextFloat() < p_true) ? TRUE : FALSE);
      }
    }

    _state = new_state;
  }
Beispiel #2
0
 public ChangeVO updateRow(
     int windowNo,
     int AD_Tab_ID,
     int queryResultID,
     int relRowNo,
     Map<String, String> context,
     boolean force) {
   if (context == null || context.size() == 0)
     return new ChangeVO(true, Msg.translate(m_context, "NoContext"));
   ArrayList<String[]> data = m_results.get(queryResultID);
   if (data == null || data.size() == 0)
     return new ChangeVO(true, Msg.translate(m_context, "CachedDataNotFound"));
   UITab tab = getTab(AD_Tab_ID);
   if (tab == null) {
     log.config("Not found AD_Tab_ID=" + AD_Tab_ID);
     return new ChangeVO(true, Msg.translate(m_context, "@NotFound@ @AD_Tab_ID@=" + AD_Tab_ID));
   }
   CContext ctx = new CContext(m_context.entrySet());
   ctx.addWindow(windowNo, context);
   ChangeVO retValue;
   if (force) retValue = tab.saveRow(ctx, windowNo, false, null);
   else retValue = tab.saveRow(ctx, windowNo, false, data.get(relRowNo));
   if (retValue.hasError()) return retValue;
   // Update Results
   String[] dataRow = retValue.rowData.clone();
   data.set(relRowNo, dataRow);
   postProcessChangeVO(retValue, windowNo, context, dataRow, tab);
   retValue.trxInfo = GridTab.getTrxInfo(tab.getTableName(), ctx, windowNo, tab.getTabNo());
   if (retValue.isRefreshAll()) {}
   return retValue;
 }
Beispiel #3
0
  // Derives QFunctions for the given value function and simulates the
  // greedy policy for the given number of trials and steps per trial.
  // Returns final value of every trial.
  public ArrayList simulate(int trials, int steps, long rand_seed) {
    ArrayList values = new ArrayList();
    _r = new Random(rand_seed);

    for (int trial = 1; trial <= trials; trial++) {

      System.out.println("\n -----------\n   Trial " + trial + "\n -----------");

      // Initialize state
      _state = new ArrayList();
      _nVars = _mdp._alVars.size();
      for (int c = 0; c < (_nVars << 1); c++) {
        _state.add("-");
      }
      Iterator i = _mdp._alVars.iterator();
      _vars = new TreeSet();
      while (i.hasNext()) {
        String s = (String) i.next();
        if (!s.endsWith("\'")) {
          Integer gid = (Integer) _mdp._tmVar2ID.get(s);
          _vars.add(gid);

          // Note: assign level (level is gid-1 b/c gids in order)
          _state.set(gid.intValue() - 1, _r.nextBoolean() ? TRUE : FALSE);
        }
      }
      // System.out.println(_mdp._context.printNode(_mdp._valueDD) + "\n" + _state);
      double reward = _mdp._context.evaluate(_mdp._rewardDD, _state);
      System.out.print(" " + PrintState(_state) + "  " + MDP._df.format(reward));

      // Run steps
      for (int step = 1; step <= steps; step++) {

        // Get action
        Action a;
        if (_bUseBasis) {
          a = getBasisAction();
        } else {
          a = getAction();
        }

        // Execute action
        executeAction(a);

        // Update reward
        reward =
            (_mdp._bdDiscount.doubleValue() * reward)
                + _mdp._context.evaluate(_mdp._rewardDD, _state);

        System.out.println(", a=" + a._sName);
        System.out.print(
            " " + PrintState(_state) + "  " + MDP._df.format(reward) + ": " + "Step " + step);
      }
      values.add(new Double(reward));
      System.out.println();
    }

    return values;
  }
Beispiel #4
0
  // Fill in weights for specific counting aggregator approaches
  //
  // Basis function 1: Count of computers running
  // Basis function 2: Count of computers running and connected to
  //                   one other running computer
  //
  // Assuming action succeeds... compute next-state value based on action,
  // choose best action.
  public Action getBasisAction() {

    int best_reboot = -1;
    double best_reboot_val = -1d;
    for (int c = 1; c <= _nVars; c++) {
      ArrayList test_state = (ArrayList) _state.clone();
      test_state.set(c - 1 + _nVars, TRUE);
      double test_val = evalBasisState(test_state, W_BASIS_1, W_BASIS_2);
      if (test_val > best_reboot_val) {
        best_reboot_val = test_val;
        best_reboot = c;
      }
    }

    return (Action) _mdp._hmName2Action.get("reboot" + best_reboot);
  }
Beispiel #5
0
 /**
  * Refresh current row of Tab
  *
  * @param windowNo relative window
  * @param AD_Tab_ID tab
  * @param relRowNo relative row number in results
  * @param context current (relevant) context of new row
  * @return error message or null
  */
 public ChangeVO refreshRow(
     int windowNo, int AD_Tab_ID, int queryResultID, int relRowNo, Map<String, String> context) {
   if (context == null || context.size() == 0) return new ChangeVO(true, "No Context");
   UITab tab = getTab(AD_Tab_ID);
   if (tab == null) {
     log.config("Not found AD_Tab_ID=" + AD_Tab_ID);
     return new ChangeVO(true, "@NotFound@ @AD_Tab_ID@=" + AD_Tab_ID);
   }
   CContext ctx = new CContext(m_context.entrySet());
   ctx.addWindow(windowNo, context);
   ChangeVO retValue = tab.refreshRow(ctx, windowNo);
   if (retValue.hasError()) return retValue;
   // Update Results
   ArrayList<String[]> data = m_results.get(queryResultID);
   if (data == null) retValue.addError("Data Not Found");
   else {
     String[] dataRow = retValue.rowData.clone();
     data.set(relRowNo, dataRow);
     postProcessChangeVO(retValue, windowNo, context, dataRow, tab);
     retValue.trxInfo = GridTab.getTrxInfo(tab.getTableName(), ctx, windowNo, tab.getTabNo());
   }
   return retValue;
 } // refreshRow
Beispiel #6
0
  public void sortResults(
      int WindowNo, int AD_Tab_ID, int AD_Field_ID, int queryResultID, final boolean ascending) {
    class SortCell {

      String[] row;

      String sort;
    }
    ArrayList<String[]> results = m_results.get(queryResultID);
    if (results == null)
      log.severe("cannot sort. results non-existent for queryResultID:" + queryResultID);
    UITab tab = getTab(AD_Tab_ID);
    final UIField field = getField(AD_Field_ID, WindowNo);
    final int displayType = field.getAD_Reference_ID();
    final int idx = tab.getFieldIndex(AD_Field_ID);
    // if not a lookup, directly sort
    if (!field.isLookup()) {
      if (FieldType.isNumeric(displayType)) {
        Collections.sort(
            results,
            new Comparator<String[]>() {

              @Override
              public int compare(String[] o1, String[] o2) {
                if (o1[idx] == null) o1[idx] = "";
                if (o2[idx] == null) o2[idx] = "";
                BigDecimal s1 = new BigDecimal(o1[idx].equals("") ? "-1e-10" : o1[idx]);
                BigDecimal s2 = new BigDecimal(o2[idx].equals("") ? "-1e-10" : o2[idx]);
                return ascending ? s1.compareTo(s2) : s2.compareTo(s1);
              }
            });
      } else if (FieldType.isDate(displayType)) {
        Collections.sort(
            results,
            new Comparator<String[]>() {

              @Override
              public int compare(String[] o1, String[] o2) {
                if (o1[idx] == null) o1[idx] = "";
                if (o2[idx] == null) o2[idx] = "";
                Long s1 = new Long(o1[idx].equals("") ? "-1000000" : o1[idx]);
                Long s2 = new Long(o2[idx].equals("") ? "-1000000" : o2[idx]);
                return ascending ? s1.compareTo(s2) : s2.compareTo(s1);
              }
            });
      } else {
        Collections.sort(
            results,
            new Comparator<String[]>() {

              @Override
              public int compare(String[] o1, String[] o2) {
                if (o1[idx] == null) o1[idx] = "";
                if (o2[idx] == null) o2[idx] = "";
                String s1 = o1[idx];
                String s2 = o2[idx];
                return ascending ? s1.compareTo(s2) : s2.compareTo(s1);
              }
            });
      }
      return;
    }
    Comparator<SortCell> c =
        new Comparator<SortCell>() {

          public int compare(SortCell o1, SortCell o2) {
            if (ascending) return o1.sort.compareTo(o2.sort);
            else return o2.sort.compareTo(o1.sort);
          }
        };
    // for look up, first get id values
    ArrayList<String> fieldValues = new ArrayList<String>(results.size());
    for (String[] row : results) {
      fieldValues.add(row[idx]);
    }
    // then translate into real values
    ArrayList<String> sorts = getLookupValueOnlyDirect(AD_Field_ID, fieldValues, true);
    ArrayList<SortCell> toBeSorteds = new ArrayList<SortCell>(sorts.size());
    for (int i = 0; i < sorts.size(); i++) {
      SortCell toBeSorted = new SortCell();
      toBeSorted.row = results.get(i);
      toBeSorted.sort = sorts.get(i);
      toBeSorteds.add(toBeSorted);
    }
    // sort
    Collections.sort(toBeSorteds, c);
    // after sorting, replace col with original values
    int i = 0;
    for (SortCell toBeSorted : toBeSorteds) {
      results.set(i, toBeSorted.row);
      i++;
    }
  }