Changeset 17584 in josm for trunk/src/org/openstreetmap/josm/data/osm/AbstractPrimitive.java

Timestamp:

2021-03-18T00:57:06+01:00 (4 years ago)

Author:

simon04

Message:

see #20613 - Introduce Tagged.keys()

Avoids creating a temporary HashMap just for iteration purposes

File:

• trunk/src/org/openstreetmap/josm/data/osm/AbstractPrimitive.java (modified) (2 diffs)

trunk/src/org/openstreetmap/josm/data/osm/AbstractPrimitive.java

@@ -19 +19 @@
 import java.util.concurrent.TimeUnit;
 import java.util.function.BiPredicate;
+import java.util.stream.IntStream;
+import java.util.stream.Stream;
 
 import org.openstreetmap.josm.data.gpx.GpxConstants;
@@ -657 +659 @@
         }
         return result;
+    }
+
+    @Override
+    public Stream<String> keys() {
+        final String[] k = this.keys;
+        if (k == null) {
+            return Stream.empty();
+        } else if (k.length == 1) {
+            return Stream.of(k[0]);
+        } else {
+            return IntStream.range(0, k.length / 2).mapToObj(i -> k[i * 2]);
+        }
     }