public Dataset filterDatasetCatGroups(Dataset dataset, Vector groups) {
logger.debug("IN");
DefaultCategoryDataset catDataset = (DefaultCategoryDataset) dataset;
// keeps track of wich series has to be shown
currentCatGroups = groups;
String catGroup = "";
// List rowKeys=new Vector();
// List rowKeys=new Vector(catDataset.getRowKeys());
List colKeys = new Vector(catDataset.getColumnKeys());
for (Iterator iterator = colKeys.iterator(); iterator.hasNext(); ) {
String col = (String) iterator.next();
// iterate on cols, get their group and see if it has to be kept
catGroup = (String) catGroups.get(col);
if (!(groups.contains(catGroup))) {
catDataset.removeColumn(col);
catGroupNames.remove(col);
}
}
logger.debug("OUT");
return catDataset;
}
/**
* Use for slider: limits the categories visualization from cat selected to cat
* selected+numberscatsVisualization.
*
* @param dataset the dataset
* @param categories the categories
* @param catSelected the cat selected
* @param numberCatsVisualization the number cats visualization
* @return the dataset
*/
public Dataset filterDataset(
Dataset dataset, HashMap categories, int catSelected, int numberCatsVisualization) {
logger.debug("IN");
DefaultCategoryDataset catDataset = (DefaultCategoryDataset) dataset;
int numCats = categories.size();
Vector visCat = new Vector();
// from the choice point to min(chose point+interval, end point)
// int startPoint=((catSelected-1)*numberCatsVisualization)+1;
int startPoint = catSelected;
int endPoint;
if ((startPoint + numberCatsVisualization - 1) <= (categories.size()))
endPoint = startPoint + numberCatsVisualization - 1;
else endPoint = categories.size();
for (int i = (startPoint); i <= endPoint; i++) {
String name = (String) categories.get(new Integer(i));
visCat.add(name);
}
List columns = new Vector(catDataset.getColumnKeys());
for (Iterator iterator = columns.iterator(); iterator.hasNext(); ) {
String col = (String) iterator.next();
if (!(visCat.contains(col))) {
catDataset.removeColumn(col);
}
}
logger.debug("OUT");
return catDataset;
}