Fix some warnings

[nikiroo-utils.git] / src / be / nikiroo / fanfix / data / MetaData.java

diff --git a/src/be/nikiroo/fanfix/data/MetaData.java b/src/be/nikiroo/fanfix/data/MetaData.java
index d72b55732adde9098b98914968f0196c3abc0562..53525fdc58726eee7bd274dc10b5e4adf7568516 100644 (file)
--- a/src/be/nikiroo/fanfix/data/MetaData.java
+++ b/src/be/nikiroo/fanfix/data/MetaData.java
@@ -380,8 +380,41 @@ public class MetaData implements Cloneable, Comparable<MetaData> {
 
        @Override
        public int compareTo(MetaData o) {
-               String oUuid = o == null ? null : o.getUuid();
-               return getUuid().compareTo(oUuid);
+               if (o == null) {
+                       return 1;
+               }
+
+               String uuid = getUuid();
+               String oUuid = o.getUuid();
+
+               if (uuid == null) {
+                       uuid = "";
+               }
+
+               if (oUuid == null) {
+                       oUuid = "";
+               }
+
+               return uuid.compareTo(oUuid);
+       }
+
+       @Override
+       public boolean equals(Object obj) {
+               if (!(obj instanceof MetaData)) {
+                       return false;
+               }
+
+               return compareTo((MetaData) obj) == 0;
+       }
+
+       @Override
+       public int hashCode() {
+               String uuid = getUuid();
+               if (uuid == null) {
+                       uuid = "" + title + author + source;
+               }
+
+               return uuid.hashCode();
        }
 
        @Override