/**
* Get the begin index point
*
* @return
*/
private static Integer getBeginIndex(Integer dataSize, SmartTableContext context)
throws Exception {
PreferenceConfigure configure = context.getConfigure();
Map<String, String> parameters = context.getParameters();
Locale locale = context.getPageContext().getResponse().getLocale();
NumberFormat format = NumberFormat.getInstance(locale);
Integer pageSize = configure.getPageSize();
String page = parameters.get(SmartConstants.PARAMS_PAGE);
Integer pageIndex = 0;
if (page != null) pageIndex = format.parse(page).intValue();
Integer beginIndex = pageIndex * pageSize;
if (pageIndex <= 0) return 0;
if (beginIndex >= dataSize) return dataSize;
return beginIndex;
}
/**
* PRIORITY Preference > JSP file > interface. TODO JSP > interface if can not get the cells from
* the JSP, get it from the bean
*
* @return
* @throws Exception
*/
public static List<SmartCell> getSmartCellList(
SmartTableContext context, IDataColumn dataColumn, IDataColumnDecorate columnDecorate)
throws Exception {
PageContext pageContext = context.getPageContext();
List<SmartCell> scs = new ArrayList<SmartCell>();
List<DataColumn> columns = new ArrayList<DataColumn>();
if (dataColumn != null) {
// transfer the IDataColumn to SmartCell object
columns = dataColumn.getDataColumns();
} else {
// get data column from request
Object obj = pageContext.getRequest().getAttribute(SmartConstants.DATA_COLUMN);
if (obj != null) columns = ((IDataColumn) obj).getDataColumns();
}
for (DataColumn column : columns) {
SmartCell cell = new SmartCell();
BeanUtils.copyProperties(cell, column);
// get the decorate from the column object directly.
IColumnDecorate decorate = column.getColumnDecorate();
if (decorate == null) {
// get the default decorate if the "decorate" column has been defined
decorate =
SmartColumnDecorateUtil.getDefaultDecorate(
column.getDecorate(), column.getParameters());
// still can not find it! So,get it from the interface - IDataColumnDecorate
if (decorate == null) {
decorate =
SmartColumnDecorateUtil.getDecorateFromBean(
context, columnDecorate, dataColumn, cell);
}
cell.setColumnDecorate(decorate);
}
scs.add(cell);
}
return scs;
}
/**
* Get the end index point
*
* @return
*/
private static Integer getEndIndex(Integer dataSize, SmartTableContext context) throws Exception {
PreferenceConfigure configure = context.getConfigure();
Integer toIndex = getBeginIndex(dataSize, context) + configure.getPageSize();
return (toIndex >= dataSize) ? dataSize : toIndex;
}
/**
* PRIORITY:context JSP file > interface if user has define the data by user the "list" attribute,
* then get it at first TODO get the row data from the context
*
* @return
* @throws Exception
*/
@SuppressWarnings("unchecked")
public static List<SmartRow> getSmartRowList(
SmartTableContext context, IDataRecordList<?> dataRecords) throws Exception {
PageContext pageContext = context.getPageContext();
List<SmartRow> srs = new ArrayList<SmartRow>();
Map<String, String> parameters = context.getParameters();
PreferenceConfigure configure = context.getConfigure();
// get dataRecords
IDataRecordList<?> records = dataRecords;
if (records == null) {
// get them from the request
Object obj = pageContext.getRequest().getAttribute(SmartConstants.DATA);
if (obj != null && obj instanceof IDataRecordList) records = (IDataRecordList<?>) obj;
}
// get filter data
// get it from the request
String filterName = parameters.get(SmartConstants.PARAM_NAME);
FilterData fd = FilterDataUtil.getFilterData(pageContext, filterName);
// if can not find the sort by and sort order in the parameters.
// get the default value from the configure object.
String sortBy = parameters.get(SmartConstants.PARAMS_SORT_BY);
if (sortBy == null) sortBy = configure.getSortBy();
String order = parameters.get(SmartConstants.PARAMS_SORT_ORDER);
if (order == null) order = configure.getSortOrder();
SortOrder sortOrder = SortOrderUtil.transfer(order);
// transfer IDataRecordList to SmartRow object
// get the row data from the context
List beans = new ArrayList();
if (fd != null) {
// if the object implement the IEnableFilter interface. then get the data from the
// "getFilterRecords" method.
if (records instanceof IEnableFilter) {
// change to IEnableFilter object
IEnableFilter<?> filterList = (IEnableFilter<?>) records;
Integer dataSize = filterList.getFilterRecordSize(fd);
Integer beginIndex = getBeginIndex(dataSize, context);
Integer endIndex = getEndIndex(dataSize, context);
// invoke the getFilterRecords method
beans = filterList.getFilterRecords(fd, beginIndex, endIndex, sortBy, sortOrder);
}
} else {
Integer dataSize = records.getAllRecordSize();
Integer beginIndex = getBeginIndex(dataSize, context);
Integer endIndex = getEndIndex(dataSize, context);
// invoke the getRecords method
beans = records.getRecords(beginIndex, endIndex, sortBy, sortOrder);
}
// get the current page smart row object
for (int i = 0; i < beans.size(); i++) {
Object bean = beans.get(i);
SmartRow row = new SmartRow();
row.setObj(bean);
srs.add(row);
}
return srs;
}
