am aa064139: Merge "Forget user history" into jb-dev

* commit 'aa0641394b7ffc16c462c5d9cc269d1f5114748f':
  Forget user history

1 files changed, 38 insertions, 0 deletions

diff --git a/java/src/com/android/inputmethod/latin/Utils.java b/java/src/com/android/inputmethod/latin/Utils.java
index 036ff74b8..91996674b 100644
--- a/java/src/com/android/inputmethod/latin/Utils.java
+++ b/java/src/com/android/inputmethod/latin/Utils.java
@@ -44,8 +44,10 @@ import java.io.IOException;
 import java.io.PrintWriter;
 import java.nio.channels.FileChannel;
 import java.text.SimpleDateFormat;
+import java.util.Collections;
 import java.util.Date;
 import java.util.HashMap;
+import java.util.Map;
 
 public class Utils {
     private Utils() {
@@ -484,4 +486,40 @@ public class Utils {
         }
         return sDeviceOverrideValueMap.get(key);
     }
+
+    private static final HashMap<String, Long> EMPTY_LT_HASH_MAP = new HashMap<String, Long>();
+    private static final String LOCALE_AND_TIME_STR_SEPARATER = ",";
+    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 = new HashMap<String, Long>();
+        for (int i = 0; i < N / 2; ++i) {
+            final String localeStr = ss[i];
+            final long time = Long.valueOf(ss[i + 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();
+    }
 }