[Android] Add isArrayEmpty & insertOrUdpate util methods

[Geoffrey Métais]

vlc-android | branch: master | Geoffrey Métais <geoffrey.metais at gmail.com> | Thu Jul 27 17:38:31 2017 +0200| [1f832301df36f09e5c9fc73a8744ce321b8a754c] | committer: Geoffrey Métais

Add isArrayEmpty & insertOrUdpate util methods

> https://code.videolan.org/videolan/vlc-android/commit/1f832301df36f09e5c9fc73a8744ce321b8a754c
---

 vlc-android/src/org/videolan/vlc/util/Util.java | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/vlc-android/src/org/videolan/vlc/util/Util.java b/vlc-android/src/org/videolan/vlc/util/Util.java
index 6e2d78aa2..af7d4cfd9 100644
--- a/vlc-android/src/org/videolan/vlc/util/Util.java
+++ b/vlc-android/src/org/videolan/vlc/util/Util.java
@@ -77,6 +77,10 @@ public class Util {
         return false;
     }
 
+    public static <T> boolean isArrayEmpty(@Nullable T[] array) {
+        return array == null || array.length == 0;
+    }
+
     public static boolean isListEmpty(@Nullable Collection collection) {
         return collection == null || collection.isEmpty();
     }
@@ -136,4 +140,19 @@ public class Util {
         Collections.addAll(list, array);
         return list;
     }
+
+    public static <T> void insertOrUdpate(List<T> dataset, T[] items) {
+        ArrayList<T> newItems = new ArrayList<>();
+        outer:
+        for (T newItem : items) {
+            for (T oldItem : dataset) {
+                if (newItem.equals(oldItem)) {
+                    oldItem = newItem;
+                    continue outer;
+                }
+            }
+            newItems.add(newItem);
+        }
+        dataset.addAll(newItems);
+    }
 }