Changeset 9217 in josm for trunk/src/org/openstreetmap/josm/tools

Timestamp:

2015-12-29T23:51:37+01:00 (5 years ago)

Author:

Don-vip

Message:

checkstyle, code cleanup

File:

• trunk/src/org/openstreetmap/josm/tools/Utils.java (modified) (2 diffs)

trunk/src/org/openstreetmap/josm/tools/Utils.java

@@ -48 +48 @@
 import java.util.List;
 import java.util.Locale;
+import java.util.Objects;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
@@ -515 +516 @@
     public static boolean equalsEpsilon(double a, double b) {
         return Math.abs(a - b) <= EPSILON;
+    }
+
+    /**
+     * Determines if two collections are equal.
+     * @param a first collection
+     * @param b second collection
+     * @return {@code true} if collections are equal, {@code false} otherwise
+     * @since 9217
+     */
+    public static boolean equalCollection(Collection<?> a, Collection<?> b) {
+        if (a == null) return b == null;
+        if (b == null) return false;
+        if (a.size() != b.size()) return false;
+        Iterator<?> itA = a.iterator();
+        Iterator<?> itB = b.iterator();
+        while (itA.hasNext()) {
+            if (!Objects.equals(itA.next(), itB.next()))
+                return false;
+        }
+        return true;
     }