/**
* @return
* @throws SQLException
* @throws I2B2Exception
*/
public HashMap calculateMaxPageInputList() throws SQLException, I2B2Exception {
int maxIteration = getPagingMaxIteration();
int i = 0;
long pageSize = getPageSize();
boolean fitPagingFlag = false;
HashMap returnResultMap = new HashMap();
returnResultMap.put("PAGING_REQUIRED_FLAG", true);
long totalObservations = 0;
// PatientListTypeHandler patientList = new PatientListTypeHandler(
// dataSourceLookup, inputList.getPatientList());
IInputOptionListHandler inputOptionListHandler =
PDOFactory.buildInputListHandler(inputList, dataSourceLookup);
int maxInputList = inputOptionListHandler.getMaxIndex();
int minInputList = inputOptionListHandler.getMinIndex();
int originalMaxInputList = maxInputList;
int inputListCount = maxInputList - minInputList;
while (i < maxIteration) {
totalObservations = getTotal(inputListCount);
log.debug("Total observations for [" + inputListCount + " ] is [" + totalObservations + " ]");
//
if (i == 0) {
returnResultMap.put("TOTAL_OBSERVATION", totalObservations);
}
// if total < page size then set max patient break
if (checkIfFitThePage(pageSize, totalObservations)) {
log.debug(
"Input list size of [" + inputListCount + "] fits the page size [" + pageSize + "]");
fitPagingFlag = true;
if (i == 0) {
returnResultMap.put("PAGING_REQUIRED_FLAG", false);
}
break;
}
// call paging method with page size, total observation,..
inputListCount = pageMethod.calculateListSize(inputListCount, totalObservations, pageSize);
if (inputListCount < 1) {
// need not continue the iteration if the list size is reduced
// to < 1
break;
}
i++;
}
if (fitPagingFlag) {
returnResultMap.put("MAX_INPUT_LIST", inputListCount);
return returnResultMap;
} else {
throw new I2B2Exception("Could not fit in a page after [" + maxIteration + "] iteration");
}
/*
* // try with minimum percent of patient int minIndex =
* patientList.getMinIndex(); int maxIndex = originalMaxInputList; int
* listLength = maxIndex - minIndex; int minPercentInput =
* getMinPercentInput(listLength);
* log.debug("Trying with minimum input list percent of [ " +
* minPercentInput + "]");
*
* if (minPercentInput > 0) { if (minPercentInput < maxInputList) {
* totalObservations = getTotal(minPercentInput); log
* .debug("Total observations for minimum input list percent [" +
* minPercentInput + " ] is [" + totalObservations + " ]"); if
* (totalObservations > 0 && checkIfFitThePage(pageSize,
* totalObservations)) { maxInputList = minIndex + minPercentInput;
* returnResultMap.put("MAX_INPUT_LIST", maxInputList); return
* returnResultMap; } } } else { log
* .debug("Skipping minimum input list percent, since the value is 0");
* }
*/
// try with minimun of single patient
// int minPagingSize = getPagingMinSize();
// log.debug("Trying with minimum input list size of [" + minPagingSize
// + "]");
// if (minPagingSize < 1) {
// throw new I2B2DAOException(
// "Paging failed, minimum page size should not be less than 1");
// }
//
// HashMap minMap = getMinPatientIndexAndTheTotal(originalMaxInputList);
// int minDataIndex = (Integer) minMap.get("MIN_INDEX");
// long minDataIndexTotal = (Long) minMap.get("MIN_INDEX_TOTAL");
//
// System.out.println("min index" + minMap.get("MIN_INDEX"));
// System.out.println("min index total " +
// minMap.get("MIN_INDEX_TOTAL"));
//
// // totalObservations = getTotal(minPagingSize);
// log.debug("Total observation for first data index [" + minDataIndex
// + " ] is [" + minDataIndexTotal + "]");
//
// if (!checkIfFitThePage(pageSize, minDataIndexTotal)) {
// throw new I2B2DAOException(
// "Paging failed, even the first patient index of ["
// + minDataIndex + "] patient observations ["
// + minDataIndexTotal
// + "] could not fit the page size [" + pageSize
// + "]");
// } else {
//
// returnResultMap.put("MAX_INPUT_LIST", minDataIndex);
// return returnResultMap;
// }
}
