Add 'libs/utils/' from commit '449639d78f9bc643d34a794dacf361f2b31c007e'

git-subtree-dir: libs/utils
git-subtree-mainline: 9694ede5285e5e785b1306d18c927f1dbf85a262
git-subtree-split: 449639d78f9bc643d34a794dacf361f2b31c007e

1 files changed, 35 insertions, 0 deletions

diff --git a/libs/utils/WordPressUtils/src/main/java/org/wordpress/android/util/FormatUtils.java b/libs/utils/WordPressUtils/src/main/java/org/wordpress/android/util/FormatUtils.java
new file mode 100644
index 000000000..28282ed5f
--- /dev/null
+++ b/libs/utils/WordPressUtils/src/main/java/org/wordpress/android/util/FormatUtils.java
@@ -0,0 +1,35 @@
+package org.wordpress.android.util;
+
+import java.text.DecimalFormat;
+import java.text.NumberFormat;
+
+public class FormatUtils {
+    /*
+     * NumberFormat isn't synchronized, so a separate instance must be created for each thread
+     * http://developer.android.com/reference/java/text/NumberFormat.html
+     */
+    private static final ThreadLocal<NumberFormat> IntegerInstance = new ThreadLocal<NumberFormat>() {
+        @Override
+        protected NumberFormat initialValue() {
+            return NumberFormat.getIntegerInstance();
+        }
+    };
+
+    private static final ThreadLocal<DecimalFormat> DecimalInstance = new ThreadLocal<DecimalFormat>() {
+        @Override
+        protected DecimalFormat initialValue() {
+            return (DecimalFormat) DecimalFormat.getInstance();
+        }
+    };
+
+    /*
+     * returns the passed integer formatted with thousands-separators based on the current locale
+     */
+    public static final String formatInt(int value) {
+        return IntegerInstance.get().format(value).toString();
+    }
+
+    public static final String formatDecimal(int value) {
+        return DecimalInstance.get().format(value).toString();
+    }
+}