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Copy path#DataSet.java#
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173 lines (123 loc) · 5.96 KB
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import java.util.ArrayList;
import java.util.*;
public class DataSet{
private int indexInField;
private boolean flag;
//saying comparator<String> because all forms of data were comparing will be strings,
//even if its "21" its still treated as a string in the ssd file
public class OurComparator implements Comparator<String[]>{
//use our indexinField to determine which element of data to compare
public int compare(String[] a, String[] b){
if(!flag)
return b[indexInField].compareTo(a[indexInField]);
return a[indexInField].compareTo(b[indexInField]);
}
}
private String[] fieldNames;
private ArrayList<String[]> data;
public DataSet(String[] fieldNames, ArrayList<String[]> data)
{
this.fieldNames = fieldNames;
this.data = data;
}
public ArrayList<String[]> applyFilters(ArrayList<Filter> filters){
//making a new array list of string[] so I dont destroy my original data, and can filter it again after this
ArrayList<String[]> result = new ArrayList<String[]>();
//filling our result array with the same set as the data array, so we can remove from the list without deleting permanently from list
for(int i = 0; i < data.size(); i++){
result.add(i, data.get(i));
}
for(int x = 0; x < filters.size(); x ++){
//Check
if(filters.get(x).getAction() == Filter.FilterAction.INCLUDE_IF){
Filter currentFilter = filters.get(x);
//to make sure to gnore letter case
String fieldInUse = currentFilter.getField().toUpperCase();
indexInField = 0;
for(int i = 0; i < fieldNames.length; i++){
if(fieldNames[i].toUpperCase().equals(fieldInUse)){
indexInField = i;
break;
}
}
for(int j = result.size()-1; j >= 0; j--){
if((currentFilter.getValue().length() > result.get(j)[indexInField].length()) || (currentFilter.getFilterType() == Filter.FilterType.STARTS_WITH
&& !(result.get(j)[indexInField].substring(0, currentFilter.getValue().length()).toUpperCase().equals(currentFilter.getValue())))){
result.remove(result.get(j));
}
else if(currentFilter.getFilterType() == Filter.FilterType.ENDS_WITH
&& (!(result.get(j)[indexInField].substring(result.get(j)[indexInField].length()-currentFilter.getValue().length()).toUpperCase().equals(currentFilter.getValue())))){
result.remove(result.get(j));
}
else if(currentFilter.getFilterType() == Filter.FilterType.CONTAINS
&& (!(result.get(j)[indexInField].toUpperCase().contains(currentFilter.getValue())))){
result.remove(result.get(j));
}
else if(currentFilter.getFilterType() == Filter.FilterType.EQUALS
&& (!(result.get(j)[indexInField].toUpperCase().equals(currentFilter.getValue())))){
result.remove(result.get(j));
}
}
}
if(filters.get(x).getAction() == Filter.FilterAction.EXCLUDE_IF){
Filter currentFilter = filters.get(x);
//to make sure we ignore letter case
String fieldInUse = currentFilter.getField().toUpperCase();
indexInField = 0;
for(int i = 0; i < fieldNames.length; i++){
if(fieldNames[i].toUpperCase().equals(fieldInUse)){
indexInField = i;
break;
}
}
for(int j = result.size()-1; j >=0; j--){
if((currentFilter.getValue().length() < result.get(j)[indexInField].length()) && (currentFilter.getFilterType() == Filter.FilterType.STARTS_WITH
&& ((result.get(j)[indexInField].substring(0, currentFilter.getValue().length()).toUpperCase().equals(currentFilter.getValue()))))){
result.remove(result.get(j));
}
else if((currentFilter.getValue().length() < result.get(j)[indexInField].length()) && (currentFilter.getFilterType() == Filter.FilterType.ENDS_WITH
&& ((result.get(j)[indexInField].substring(result.get(j)[indexInField].length()-currentFilter.getValue().length()).toUpperCase().equals(currentFilter.getValue()))))){
result.remove(result.get(j));
}
else if(currentFilter.getFilterType() == Filter.FilterType.CONTAINS
&& ((result.get(j)[indexInField].toUpperCase().contains(currentFilter.getValue())))){
result.remove(result.get(j));
}
else if(currentFilter.getFilterType() == Filter.FilterType.EQUALS
&& ((result.get(j)[indexInField].toUpperCase().equals(currentFilter.getValue())))){
result.remove(result.get(j));
}
}
}
if(filters.get(x).getAction() == Filter.FilterAction.SORT_BY_ASCENDING){
flag = true;
Filter currentFilter = filters.get(x);
//to make sure we ignore letter case
String fieldInUse = currentFilter.getField().toUpperCase();
indexInField = 0;
for(int i = 0; i < fieldNames.length; i++){
if(fieldNames[i].toUpperCase().equals(fieldInUse)){
indexInField = i;
break;
}
}
result.sort(new OurComparator());
}
if(filters.get(x).getAction() == Filter.FilterAction.SORT_BY_DESCENDING){
flag = false;
Filter currentFilter = filters.get(x);
//to make sure we ignore letter case
String fieldInUse = currentFilter.getField().toUpperCase();
indexInField = 0;
for(int i = 0; i < fieldNames.length; i++){
if(fieldNames[i].toUpperCase().equals(fieldInUse)){
indexInField = i;
break;
}
}
result.sort(new OurComparator());
}
}
return result; //placeholder
}
}