1 files changed, 39 insertions, 2 deletions
diff --git a/java/src/com/android/inputmethod/latin/LocaleUtils.java b/java/src/com/android/inputmethod/latin/LocaleUtils.java
index b938dd336..feb1b2d0e 100644
--- a/java/src/com/android/inputmethod/latin/LocaleUtils.java
+++ b/java/src/com/android/inputmethod/latin/LocaleUtils.java
@@ -31,7 +31,10 @@ import java.util.Locale;
  * update/bugfix to this file, consider also updating/fixing the version in the
  * dictionary pack.
  */
-public class LocaleUtils {
+public final class LocaleUtils {
+    private static final HashMap<String, Long> EMPTY_LT_HASH_MAP = CollectionUtils.newHashMap();
+    private static final String LOCALE_AND_TIME_STR_SEPARATER = ",";
+
     private LocaleUtils() {
         // Intentional empty constructor for utility class.
     }
@@ -193,7 +196,7 @@ public class LocaleUtils {
         }
     }
 
-    private static final HashMap<String, Locale> sLocaleCache = new HashMap<String, Locale>();
+    private static final HashMap<String, Locale> sLocaleCache = CollectionUtils.newHashMap();
 
     /**
      * Creates a locale from a string specification.
@@ -219,4 +222,38 @@ public class LocaleUtils {
             return retval;
         }
     }
+
+    public static HashMap<String, Long> localeAndTimeStrToHashMap(String str) {
+        if (TextUtils.isEmpty(str)) {
+            return EMPTY_LT_HASH_MAP;
+        }
+        final String[] ss = str.split(LOCALE_AND_TIME_STR_SEPARATER);
+        final int N = ss.length;
+        if (N < 2 || N % 2 != 0) {
+            return EMPTY_LT_HASH_MAP;
+        }
+        final HashMap<String, Long> retval = CollectionUtils.newHashMap();
+        for (int i = 0; i < N / 2; ++i) {
+            final String localeStr = ss[i * 2];
+            final long time = Long.valueOf(ss[i * 2 + 1]);
+            retval.put(localeStr, time);
+        }
+        return retval;
+    }
+
+    public static String localeAndTimeHashMapToStr(HashMap<String, Long> map) {
+        if (map == null || map.isEmpty()) {
+            return "";
+        }
+        final StringBuilder builder = new StringBuilder();
+        for (String localeStr : map.keySet()) {
+            if (builder.length() > 0) {
+                builder.append(LOCALE_AND_TIME_STR_SEPARATER);
+            }
+            final Long time = map.get(localeStr);
+            builder.append(localeStr).append(LOCALE_AND_TIME_STR_SEPARATER);
+            builder.append(String.valueOf(time));
+        }
+        return builder.toString();
+    }
 }