// 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;
}
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;
}
// 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;
}
// 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);
}
/**
* 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
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++;
}
}
