/**
* Reads next line and notifies susbscribed observers.
*
* @return true if more lines would be available, false if there was no possible to read the line,
* since the EOF has been reached.
*/
public boolean next() {
if (this.isClosed) return false;
if (this.nomore) return false;
try {
final boolean unpoll[] = new boolean[symbols.length];
long minTime = nextMilliseconds[0];
for (int i = 1; i < symbols.length; i++) {
if (nextMilliseconds[i] > minTime) unpoll[i] = true;
else if (nextMilliseconds[i] < minTime) {
minTime = nextMilliseconds[i];
for (int j = 0; j < i; j++) unpoll[j] = true;
}
}
boolean somethingToReturn = false;
final ParseResult compossedResult = new ParseResult();
for (int i = 0; i < symbols.length; i++) {
if (unpoll[i] || this.nextLine[i] == null) {
// Nothing to send to listeners.
} else {
somethingToReturn = true;
final ParseResult localResult = this.lineParser.parse(this.nextLine[i]);
// Move to next valid line.
String line = partReader[i].readLine();
while (line != null && !this.lineParser.isValid(line)) {
line = partReader[i].readLine();
}
if (line != null) {
if (!symbols[i].equals(localResult.getSymbol(0))) {
this.nextLine[i] = null;
} else {
this.nextLine[i] = line;
this.nextMilliseconds[i] = this.lineParser.getUTCTimestamp(line).getTimeInMillis();
}
} else {
this.nextLine[i] = null;
}
compossedResult.merge(localResult);
}
}
if (somethingToReturn) {
for (int i = 0; i < this.spreadTradesMgr.length; i++) {
this.spreadTradesMgr[i].accumulate(compossedResult);
}
} else {
this.nomore = true;
for (int i = 0; i < this.spreadTradesMgr.length; i++) {
this.spreadTradesMgr[i].endAccumulation();
}
}
return somethingToReturn;
} catch (Exception e) {
log.log(Level.SEVERE, "Exception dealing with file '" + filePath + "'", e);
return false;
}
}
/** Gets given data into this object. */
public void merge(final ParseResult other) {
if (this.calendars.size() == 0) {
this.calendars.add((Calendar) other.getLocalTimestamp(0).clone());
}
if (!other.getUTCTimestampCopy().equals(this.getUTCTimestampCopy())) {
throw new IllegalArgumentException(
"Cannot merge result data in "
// System.out.println("Cannot merge result data in "
+ "different times ("
+ other.getUTCTimestampCopy()
+ " is not as expected "
+ this.getUTCTimestampCopy()
+ ")\n"
+ "Original result is related to "
+ this.symbols
+ " and "
+ "unexpected result is related to "
+ other.symbols);
}
for (Map.Entry<String, Map<Field, Double>> symbolVals : other.values.entrySet()) {
boolean symbolFound = false;
for (int i = 0; i < this.symbols.size(); i++) {
if (this.symbols.get(i).equals(symbolVals.getKey())) {
symbolFound = true;
break;
}
}
if (!symbolFound) {
final String s = symbolVals.getKey();
this.addSymbol(s);
for (int i = 0; i < this.symbols.size(); i++) {
if (this.symbols.get(i).equals(s)) {
final Calendar c = (Calendar) other.getLocalTimestamp(s).clone();
final long millis = c.getTimeInMillis();
c.setTimeZone(other.getLocalTimestamp(s).getTimeZone());
c.setTimeInMillis(millis);
if (this.calendars.size() <= i) this.newTimestamp(i);
this.calendars.set(i, c);
break;
}
}
}
for (Map.Entry<Field, Double> fieldValue : symbolVals.getValue().entrySet()) {
this.putValue(symbolVals.getKey(), fieldValue.getKey(), fieldValue.getValue());
}
}
}
