Examples of com.ibm.icu.text.MessageFormat

com.ibm.icu.text.MessageFormat
ut, with different testArgs output: The disk "MyDisk" contains 0 file(s). output: The disk "MyDisk" contains 1 file(s). output: The disk "MyDisk" contains 1,273 file(s).
For more sophisticated patterns, you can use a ChoiceFormat to get output such as:
```
 MessageFormat form = new MessageFormat("The disk \"{1}\" contains {0}."); double[] filelimits = {0,1,2}; String[] filepart = {"no files","one file","{0,number} files"}; ChoiceFormat fileform = new ChoiceFormat(filelimits, filepart); form.setFormatByArgumentIndex(0, fileform); Object[] testArgs = {new Long(12373), "MyDisk"}; System.out.println(form.format(testArgs)); // output, with different testArgs output: The disk "MyDisk" contains no files. output: The disk "MyDisk" contains one file. output: The disk "MyDisk" contains 1,273 files. 
```
You can either do this programmatically, as in the above example, or by using a pattern (see {@link ChoiceFormat}for more information) as in:
```
 form.applyPattern( "There {0,choice,0#are no files|1#is one file|1<are {0,number,integer} files}."); 
```
Note: As we see above, the string produced by a ChoiceFormat in MessageFormat is treated specially; occurances of '{' are used to indicated subformats, and cause recursion. If you create both a MessageFormat and ChoiceFormat programmatically (instead of using the string patterns), then be careful not to produce a format that recurses on itself, which will cause an infinite loop.
When a single argument is parsed more than once in the string, the last match will be the final result of the parsing. For example,
```
 MessageFormat mf = new MessageFormat("{0,number,#.##}, {0,number,#.#}"); Object[] objs = {new Double(3.1415)}; String result = mf.format( objs ); // result now equals "3.14, 3.1" objs = null; objs = mf.parse(result, new ParsePosition(0)); // objs now equals {new Double(3.1)} 
```
Likewise, parsing with a MessageFormat object using patterns containing multiple occurances of the same argument would return the last match. For example,
```
 MessageFormat mf = new MessageFormat("{0}, {0}, {0}"); String forParsing = "x, y, z"; Object[] objs = mf.parse(forParsing, new ParsePosition(0)); // result now equals {new String("z")} 
```
Synchronization

Message formats are not synchronized. It is recommended to create separate format instances for each thread. If multiple threads access a format concurrently, it must be synchronized externally. @see java.util.Locale @see Format @see NumberFormat @see DecimalFormat @see ChoiceFormat @author Mark Davis @stable ICU 3.0

    private static MessageFormat getFallbackFormat(ULocale locale) {
        String fallbackPattern = ZoneMeta.getTZLocalizationInfo(locale, ZoneMeta.FALLBACK_FORMAT);
        if (fallbackPattern == null) {
            fallbackPattern = "{1} ({0})";
        }
        return new MessageFormat(fallbackPattern, locale);
    }

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    private static MessageFormat getRegionFormat(ULocale locale) {
        String regionPattern = ZoneMeta.getTZLocalizationInfo(locale, ZoneMeta.REGION_FORMAT);
        if (regionPattern == null) {
            regionPattern = "{0}";
        }
        return new MessageFormat(regionPattern, locale);
    }

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        if (city == null) {
            city = tzid.substring(tzid.lastIndexOf('/')+1).replace('_',' ');
        }


        String flbPat = getTZLocalizationInfo(locale, FALLBACK_FORMAT);
        MessageFormat mf = new MessageFormat(flbPat);


        return mf.format(new Object[] { city, country });
    }

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        return mf.format(new Object[] { city, country });
    }


    public static String displayRegion(String cityOrCountry, ULocale locale) {
        String regPat = getTZLocalizationInfo(locale, REGION_FORMAT);
        MessageFormat mf = new MessageFormat(regPat);
        return mf.format(new Object[] { cityOrCountry });
    }

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        final long mpm = 60000;


        SimpleDateFormat sdf = new SimpleDateFormat(dtepat, locale);
        sdf.setTimeZone(TimeZone.getTimeZone("GMT"));
        String res = sdf.format(new Long(value));
        MessageFormat mf = new MessageFormat(msgpat);
        res = mf.format(new Object[] { res });
        return res;
    }

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                    }
                }
            }
        }
         
        MessageFormat formatter = new MessageFormat(pattern, this.getLocale());
        Object retVal;
        if(method.getReturnType().equals(SafeHtml.class)) {
            Object[] safeArgs = null;
            if(args != null) {
                safeArgs = new Object[args.length];
                for(int i = 0; i < args.length; i++) {
                    Object arg = args[i];
                    Class<?> argType = parameterTypes[i];
                    if(SafeHtml.class.isAssignableFrom(argType)) {
                        SafeHtml sh = (SafeHtml) arg;
                        safeArgs[i] = sh.asString();
                    } else if(Number.class.isAssignableFrom(argType) 
                            || Date.class.isAssignableFrom(argType)) {
                        // Because of the subformat pattern of dates and 
                        // numbers, we cannot escape them.
                        safeArgs[i] = arg;
                    } else {
                        safeArgs[i] = SafeHtmlUtils.htmlEscape(arg.toString());
                    }
                }
            }
            String formattedString = formatter.format(safeArgs, new StringBuffer(), null).toString();
            // Would rather use fromSafeConstant() but doesn't work on server.
            retVal = SafeHtmlUtils.fromTrustedString(formattedString);
        } else {
            retVal = formatter.format(args, new StringBuffer(), null).toString();
        }
        
        return retVal;
    }

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Examples of com.ibm.icu.text.MessageFormat

Synchronization

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