DecimalFormatSymbols.java: Added the year 2007 to Copyright information and introduced new variable, currency.

2007-04-04  Tania Bento  <tbento@redhat.com>

	* java/text/DecimalFormatSymbols.java: Added the year 2007 to
	Copyright information and introduced new variable, currency.
	(DecimalFormatSymbols(Locale)): Define currency and intlCurrencySymbol
	to "XXX", currencySymbol to "?" and localCurrency appropriately.
	(getCurrency): Fixed documentation and return the value of currency.
	(setCurrency): Fixed documentation and update the value of currency.
	(setInternationalCurrencySymbol): Fixed documentation and update the
	value of currency.
	* java/util/Currency.java: Introduced two new variables, properties
	and fractionDigits. In the static block, a properties object is
	created and the currency resource is loaded.
	(Currency(Locale)): fractionDigits is defined.
	(Currency(String)): New method.
	(getDefaultFractionDigits): Return the value of fractionDigits.
	(getInstance(String)): Check if String is equal to "XXX".

From-SVN: r123512

2 files changed, 70 insertions, 15 deletions

diff --git a/libjava/java/text/DecimalFormatSymbols.h b/libjava/java/text/DecimalFormatSymbols.h
index 96bd286..b38140c 100644
--- a/libjava/java/text/DecimalFormatSymbols.h
+++ b/libjava/java/text/DecimalFormatSymbols.h
@@ -83,6 +83,7 @@ private:
   jint serialVersionOnStream;
   jchar zeroDigit;
   ::java::util::Locale * locale;
+  ::java::util::Currency * currency;
   static const jlong serialVersionUID = 5772796243397350300LL;
 public:
   static ::java::lang::Class class$;
diff --git a/libjava/java/text/DecimalFormatSymbols.java b/libjava/java/text/DecimalFormatSymbols.java
index c58530f..110e45f 100644
--- a/libjava/java/text/DecimalFormatSymbols.java
+++ b/libjava/java/text/DecimalFormatSymbols.java
@@ -1,5 +1,5 @@
 /* DecimalFormatSymbols.java -- Format symbols used by DecimalFormat
-   Copyright (C) 1999, 2000, 2001, 2004 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2000, 2001, 2004, 2007 Free Software Foundation, Inc.
 
 This file is part of GNU Classpath.
 
@@ -121,8 +121,19 @@ public final class DecimalFormatSymbols implements Cloneable, Serializable
   /**
    * This method initializes a new instance of
    * <code>DecimalFormatSymbols</code> for the specified locale.
+   * <strong>Note</strong>: if the locale does not have an associated
+   * <code>Currency</code> instance, the currency symbol and
+   * international currency symbol will be set to the strings "?"
+   * and "XXX" respectively.  This generally happens with language
+   * locales (those with no specified country), such as
+   * <code>Locale.ENGLISH</code>.  This constructor only obtains
+   * instances using the runtime's resources; to also include
+   * {@link java.text.spi.DecimalFormatSymbolsProvider} instances,
+   * call {@link #getInstance(java.util.Locale)} instead.
    *
    * @param loc The local to load symbols for.
+   * @throws NullPointerException if the locale is null.
+   * @see #getInstance(java.util.Locale)
    */
   public DecimalFormatSymbols (Locale loc)
   {
@@ -136,14 +147,26 @@ public final class DecimalFormatSymbols implements Cloneable, Serializable
       {
 	res = null;
       }
-    currencySymbol = safeGetString (res, "currencySymbol", "$");
+    currency = Currency.getInstance("XXX");
+    currencySymbol = "?";
+    intlCurrencySymbol = "XXX";
+    try
+      {
+	Currency localeCurrency = Currency.getInstance(loc);
+	if (localeCurrency != null)
+	  {
+	    setCurrency(localeCurrency);
+	  }
+      }
+    catch(IllegalArgumentException exception)
+      {
+	/* Locale has an invalid currency */
+      }
     decimalSeparator = safeGetChar (res, "decimalSeparator", '.');
     digit = safeGetChar (res, "digit", '#');
     exponential = safeGetChar (res, "exponential", 'E');
     groupingSeparator = safeGetChar (res, "groupingSeparator", ',');
     infinity = safeGetString (res, "infinity", "\u221e");
-    // FIXME: default?
-    intlCurrencySymbol = safeGetString (res, "intlCurrencySymbol", "$");
     try
       {
 	monetarySeparator = safeGetChar (res, "monetarySeparator", '.');
@@ -200,12 +223,13 @@ public final class DecimalFormatSymbols implements Cloneable, Serializable
    * Returns the currency corresponding to the currency symbol stored
    * in the instance of <code>DecimalFormatSymbols</code>.
    *
-   * @return A new instance of <code>Currency</code> if
-   * the currency code matches a known one.
+   * @return An instance of <code>Currency</code> which matches
+   *         the currency used, or null if there is no corresponding
+   *         instance.
    */
   public Currency getCurrency ()
   {
-    return Currency.getInstance (currencySymbol);
+    return currency;
   }
 
   /**
@@ -368,13 +392,16 @@ public final class DecimalFormatSymbols implements Cloneable, Serializable
   }
 
   /**
-   * This method sets the currency to the specified value.
+   * This method sets the currency symbol and ISO 4217 currency
+   * code to the values obtained from the supplied currency.
    *
-   * @param currency The new currency
+   * @param currency the currency from which to obtain the values.
+   * @throws NullPointerException if the currency is null.
    */
   public void setCurrency (Currency currency)
   {
     setCurrencySymbol (currency.getSymbol());
+    this.currency = currency;
   }
 
   /**
@@ -435,14 +462,31 @@ public final class DecimalFormatSymbols implements Cloneable, Serializable
   }
 
   /**
-   * This method sets the international currency symbols to the
-   * specified value. 
+   * This method sets the international currency symbol to the
+   * specified value. If a valid <code>Currency</code> instance
+   * exists for the international currency code, then this is
+   * used for the currency attribute, and the currency symbol
+   * is set to the corresponding value from this instance.
+   * Otherwise, the currency attribute is set to null and the
+   * symbol is left unmodified. 
    *
-   * @param intlCurrencySymbol The new international currency symbol.
+   * @param currencyCode The new international currency symbol.
    */
-  public void setInternationalCurrencySymbol (String currency)
+  public void setInternationalCurrencySymbol (String currencyCode)
   {
-    intlCurrencySymbol = currency;
+    intlCurrencySymbol = currencyCode;
+    try
+      {
+	currency = Currency.getInstance(currencyCode);
+      }
+    catch (IllegalArgumentException exception)
+      {
+	currency = null;
+      }
+    if (currency != null)
+      {
+        setCurrencySymbol(currency.getSymbol(locale));
+      }
   }
 
   /**
@@ -593,7 +637,17 @@ public final class DecimalFormatSymbols implements Cloneable, Serializable
    * @serial The locale of these currency symbols.
    */
   private Locale locale;
- 
+
+  /**
+   * The currency used for the symbols in this instance.
+   * This is stored temporarily for efficiency reasons,
+   * as well as to ensure that the correct instance
+   * is restored from the currency code.
+   *
+   * @serial Ignored.
+   */
+  private transient Currency currency;
+
   private static final long serialVersionUID = 5772796243397350300L;
 
   private void readObject(ObjectInputStream stream)