1 files changed, 34 insertions, 1 deletions
diff --git a/src/cz/crcs/ectester/common/ec/EC_Data.java b/src/cz/crcs/ectester/common/ec/EC_Data.java
index c048ef7..5fd2f11 100644
--- a/src/cz/crcs/ectester/common/ec/EC_Data.java
+++ b/src/cz/crcs/ectester/common/ec/EC_Data.java
@@ -14,7 +14,7 @@ import java.util.regex.Pattern;
  *
  * @author Jan Jancar johny@neuromancer.sk
  */
-public abstract class EC_Data {
+public abstract class EC_Data implements Comparable<EC_Data> {
     String id;
     int count;
     byte[][] data;
@@ -214,4 +214,37 @@ public abstract class EC_Data {
         }
         return Arrays.deepHashCode(this.data);
     }
+
+    @Override
+    public int compareTo(EC_Data o) {
+        if (o == this) return 0;
+        if (this.id != null && o.id != null) {
+            return this.id.compareTo(o.id);
+        } else if (this.id == null && o.id == null) {
+            if (Arrays.equals(this.data, o.data)) {
+                return 0;
+            } else {
+                int minCount = (this.count < o.count) ? this.count : o.count;
+                for (int i = 0; i < minCount; ++i) {
+                    byte[] thisData = this.data[i];
+                    byte[] oData = o.data[i];
+                    int innerMinCount = (thisData.length < oData.length) ? thisData.length : oData.length;
+                    for (int j = 0; j < innerMinCount; ++j) {
+                        if (thisData[j] < oData[j]) {
+                            return -1;
+                        } else if (thisData[j] > oData[j]) {
+                            return 1;
+                        }
+                    }
+                }
+            }
+        } else {
+            if (this.id == null) {
+                return -1;
+            } else {
+                return 1;
+            }
+        }
+        return 0;
+    }
 }