001// Copyright 2006 The Apache Software Foundation 002// 003// Licensed under the Apache License, Version 2.0 (the "License"); 004// you may not use this file except in compliance with the License. 005// You may obtain a copy of the License at 006// 007// http://www.apache.org/licenses/LICENSE-2.0 008// 009// Unless required by applicable law or agreed to in writing, software 010// distributed under the License is distributed on an "AS IS" BASIS, 011// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 012// See the License for the specific language governing permissions and 013// limitations under the License. 014 015package org.apache.tapestry5.ioc.internal.util; 016 017import org.apache.tapestry5.ioc.MessageFormatter; 018 019import java.util.Locale; 020 021 022public class MessageFormatterImpl implements MessageFormatter 023{ 024 private final String format; 025 026 private final Locale locale; 027 028 public MessageFormatterImpl(String format, Locale locale) 029 { 030 this.format = format; 031 this.locale = locale; 032 } 033 034 public String format(Object... args) 035 { 036 for (int i = 0; i < args.length; i++) 037 { 038 Object arg = args[i]; 039 040 if (Throwable.class.isInstance(arg)) 041 { 042 args[i] = InternalUtils.toMessage((Throwable) arg); 043 } 044 } 045 046 // Might be tempting to create a Formatter object and just keep reusing it ... but 047 // Formatters are not threadsafe. 048 049 return String.format(locale, format, args); 050 } 051 052}