1 files changed, 37 insertions, 10 deletions
diff --git a/src/eu/equalparts/cardbase/cardfield/StringCardField.java b/src/eu/equalparts/cardbase/cardfield/StringCardField.java
index 8239138..d33cb53 100644
--- a/src/eu/equalparts/cardbase/cardfield/StringCardField.java
+++ b/src/eu/equalparts/cardbase/cardfield/StringCardField.java
@@ -1,23 +1,50 @@
 package eu.equalparts.cardbase.cardfield;
+import eu.equalparts.cardbase.card.Card;
+import eu.equalparts.cardbase.comparator.SpecialFields.DirtyNumber;
 import eu.equalparts.cardbase.filtering.Filter;
+import eu.equalparts.cardbase.utils.Utils;
 
 public class StringCardField extends CardField<String> {
-	
+
 	public StringCardField(String name, String value) {
 		super(name, value);
 	}
 
 	@Override
 	public boolean filter(Filter filter) {
-		switch (filter.type) {
-		case CONTAINS:
-			return get().toLowerCase().contains(filter.value.toLowerCase());
-		case EQUALS:
-			return get().equalsIgnoreCase(filter.value);
-		case REGEX:
-			return get().matches(filter.value);
-		default:
-			throw new IllegalArgumentException();
+		if (get() != null) {
+			switch (filter.type) {
+			case CONTAINS:
+				return get().toLowerCase().contains(filter.value.toLowerCase());
+			case EQUALS:
+				return get().equalsIgnoreCase(filter.value);
+			case REGEX:
+				return get().matches(filter.value);
+			case GREATER_THAN:
+				try {
+					if (Utils.hasAnnotation(Card.class.getField(filter.fieldName), DirtyNumber.class)) {
+						return Integer.parseInt(get().replaceAll("[^0-9]+", "")) > Integer.parseInt(filter.value);
+					} else {
+						throw new IllegalArgumentException();
+					}
+				} catch (NumberFormatException | NoSuchFieldException | SecurityException e) {
+					return false;
+				}
+			case SMALLER_THAN:
+				try {
+					if (Utils.hasAnnotation(Card.class.getField(filter.fieldName), DirtyNumber.class)) {
+						return Integer.parseInt(get().replaceAll("[^0-9]+", "")) < Integer.parseInt(filter.value);
+					} else {
+						throw new IllegalArgumentException();
+					}
+				} catch (NumberFormatException | NoSuchFieldException | SecurityException e) {
+					return false;
+				}
+			default:
+				throw new IllegalArgumentException();
+			}
+		} else {
+			return false;
 		}
 	}
 }