Changeset 1494 in josm

Timestamp:

Mar 17, 2009 6:52:31 PM (4 years ago)

Author:

stoecker

Message:

fix #2312 - performance optimization

File:

• trunk/src/org/openstreetmap/josm/io/OsmReader.java (modified) (2 diffs)

trunk/src/org/openstreetmap/josm/io/OsmReader.java

@@ -142 +142 @@
           private OsmPrimitive current;
           private String generator;
+          private Map<String, String> keys = new HashMap<String, String>();
 //          int n = 0;
 
@@ -257 +258 @@
                     } else if (qName.equals("tag")) {
 //                         tagsN++;
-                         current.put(atts.getValue("k"), atts.getValue("v"));
+                        String key = atts.getValue("k");
+                        String internedKey = keys.get(key);
+                        if (internedKey == null) {
+                            internedKey = key;
+                            keys.put(key, key);
+                        }
+                         current.put(internedKey, atts.getValue("v"));
                     }
                } catch (NumberFormatException x) {