Apache
/
commons-lang
mirror of https://github.com/apache/commons-lang.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

account for unavailability of NumberFormat.getIntegerInstance(...) pre JDK 1.4 

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/lang/trunk@600605 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Matthew Jason Benson 2007-12-03 17:20:24 +00:00
parent b952b75526
commit 686f2f611c
1 changed files with 40 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

42
src/java/org/apache/commons/lang/text/NumberMetaFormat.java
View File

@ -16,6 +16,9 @@
*/
package org.apache.commons.lang.text;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.text.DecimalFormat;
import java.text.DecimalFormatSymbols;
import java.text.FieldPosition;
@ -39,6 +42,20 @@ public class NumberMetaFormat extends MetaFormatSupport {
private static final String INTEGER = "integer";
private static final String CURRENCY = "currency";
private static final String PERCENT = "percent";
private static final Method GET_INTEGER_INSTANCE;
static {
Method m = null;
try {
Method mm = NumberFormat.class.getDeclaredMethod("getIntegerInstance", new Class[] { Locale.class });
if (Modifier.isStatic(mm.getModifiers())) {
m = mm;
}
} catch (Exception e) {
// leave null
}
GET_INTEGER_INSTANCE = m;
}
private Locale locale;
@ -116,8 +133,7 @@ public class NumberMetaFormat extends MetaFormatSupport {
if (subformats == null) {
subformats = new HashMap();
subformats.put(DEFAULT, NumberFormat.getInstance(getLocale()));
subformats.put(INTEGER, NumberFormat
.getIntegerInstance(getLocale()));
subformats.put(INTEGER, createIntegerInstance(getLocale()));
subformats.put(CURRENCY, NumberFormat
.getCurrencyInstance(getLocale()));
subformats.put(PERCENT, NumberFormat
@ -127,4 +143,26 @@ public class NumberMetaFormat extends MetaFormatSupport {
decimalFormatSymbols = new DecimalFormatSymbols(getLocale());
}
}
/**
* Create the "integer" NumberFormat instance for the specified Locale.
*
* @param locale the Locale to use
* @return integer NumberFormat
*/
private static NumberFormat createIntegerInstance(Locale locale) {
if (GET_INTEGER_INSTANCE != null) {
try {
return (NumberFormat) GET_INTEGER_INSTANCE.invoke(null, new Object[] { locale });
} catch (IllegalAccessException e) {
//fall through
} catch (InvocationTargetException e) {
//fall through
}
}
NumberFormat result = NumberFormat.getInstance(locale);
result.setMaximumFractionDigits(0);
result.setParseIntegerOnly(true);
return result;
}
}