Add Currency.getNumericCode()

getNumericCode() was added in Java 1.7. It returns the ISO 4217
numeric code for a currency.

Change-Id: I8404703e749b3324bbcb89ecf6d8d64b95a030a3

4 files changed, 29 insertions, 0 deletions

diff --git a/luni/src/main/java/java/util/Currency.java b/luni/src/main/java/java/util/Currency.java
index b5b04a0..e8ecdde 100644
--- a/luni/src/main/java/java/util/Currency.java
+++ b/luni/src/main/java/java/util/Currency.java
@@ -127,6 +127,17 @@ public final class Currency implements Serializable {
     }
 
     /**
+     * Returns the ISO 4217 numeric code for this currency. If there is no standard numeric code a
+     * zero is returned.
+     *
+     * @since 1.7
+     * @hide Until ready for an API update
+     */
+    public int getNumericCode() {
+        return ICU.getCurrencyNumericCode(currencyCode);
+    }
+
+    /**
      * Equivalent to {@code getSymbol(Locale.getDefault())}.
      * See "<a href="../util/Locale.html#default_locale">Be wary of the default locale</a>".
      */
diff --git a/luni/src/main/java/libcore/icu/ICU.java b/luni/src/main/java/libcore/icu/ICU.java
index 2c94882..078c83a 100644
--- a/luni/src/main/java/libcore/icu/ICU.java
+++ b/luni/src/main/java/libcore/icu/ICU.java
@@ -453,6 +453,7 @@ public final class ICU {
   public static native String getCurrencyCode(String countryCode);
   public static native String getCurrencyDisplayName(String locale, String currencyCode);
   public static native int getCurrencyFractionDigits(String currencyCode);
+  public static native int getCurrencyNumericCode(String currencyCode);
   public static native String getCurrencySymbol(String locale, String currencyCode);
 
   public static native String getDisplayCountryNative(String countryCode, String locale);
diff --git a/luni/src/main/native/libcore_icu_ICU.cpp b/luni/src/main/native/libcore_icu_ICU.cpp
index 8f6e321..c869542 100644
--- a/luni/src/main/native/libcore_icu_ICU.cpp
+++ b/luni/src/main/native/libcore_icu_ICU.cpp
@@ -203,6 +203,15 @@ static jint ICU_getCurrencyFractionDigits(JNIEnv* env, jclass, jstring javaCurre
   return ucurr_getDefaultFractionDigits(icuCurrencyCode.getTerminatedBuffer(), &status);
 }
 
+static jint ICU_getCurrencyNumericCode(JNIEnv* env, jclass, jstring javaCurrencyCode) {
+  ScopedJavaUnicodeString currencyCode(env, javaCurrencyCode);
+  if (!currencyCode.valid()) {
+    return 0;
+  }
+  UnicodeString icuCurrencyCode(currencyCode.unicodeString());
+  return ucurr_getNumericCode(icuCurrencyCode.getTerminatedBuffer());
+}
+
 // TODO: rewrite this with int32_t ucurr_forLocale(const char* locale, UChar* buff, int32_t buffCapacity, UErrorCode* ec)...
 static jstring ICU_getCurrencyCode(JNIEnv* env, jclass, jstring javaCountryCode) {
     UErrorCode status = U_ZERO_ERROR;
@@ -764,6 +773,7 @@ static JNINativeMethod gMethods[] = {
     NATIVE_METHOD(ICU, getCurrencyCode, "(Ljava/lang/String;)Ljava/lang/String;"),
     NATIVE_METHOD(ICU, getCurrencyDisplayName, "(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;"),
     NATIVE_METHOD(ICU, getCurrencyFractionDigits, "(Ljava/lang/String;)I"),
+    NATIVE_METHOD(ICU, getCurrencyNumericCode, "(Ljava/lang/String;)I"),
     NATIVE_METHOD(ICU, getCurrencySymbol, "(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;"),
     NATIVE_METHOD(ICU, getDisplayCountryNative, "(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;"),
     NATIVE_METHOD(ICU, getDisplayLanguageNative, "(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;"),
diff --git a/luni/src/test/java/libcore/java/util/CurrencyTest.java b/luni/src/test/java/libcore/java/util/CurrencyTest.java
index 61a22fd..fb7fbf6 100644
--- a/luni/src/test/java/libcore/java/util/CurrencyTest.java
+++ b/luni/src/test/java/libcore/java/util/CurrencyTest.java
@@ -67,6 +67,13 @@ public class CurrencyTest extends junit.framework.TestCase {
         assertEquals(-1, Currency.getInstance("XXX").getDefaultFractionDigits());
     }
 
+    public void test_getNumericCode() throws Exception {
+        assertEquals(840, Currency.getInstance("USD").getNumericCode());
+        assertEquals(826, Currency.getInstance("GBP").getNumericCode());
+        assertEquals(999, Currency.getInstance("XXX").getNumericCode());
+        assertEquals(0, Currency.getInstance("XFU").getNumericCode());
+    }
+
     // http://code.google.com/p/android/issues/detail?id=38622
     public void test_getSymbol_38622() throws Exception {
         // The CLDR data had the Portuguese symbol for "EUR" in pt, not in pt_PT.