| /* |
| * Copyright 1999,2004 The Apache Software Foundation. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.log4j.helpers; |
| |
| import java.util.Date; |
| import java.util.TimeZone; |
| import java.text.FieldPosition; |
| import java.text.ParsePosition; |
| import java.text.DateFormat; |
| |
| /** |
| Formats a {@link Date} by printing the number of milliseconds |
| elapsed since the construction of the format. This is the fastest |
| printing DateFormat in the package. |
| |
| @author Ceki Gülcü |
| @since 0.7.5 |
| */ |
| public class RelativeTimeDateFormat extends DateFormat { |
| |
| protected final long startTime; |
| |
| public |
| RelativeTimeDateFormat() { |
| this.startTime = System.currentTimeMillis(); |
| } |
| |
| /** |
| Appends to <code>sbuf</code> the number of milliseconds elapsed |
| since the start of the application. |
| |
| @since 0.7.5 |
| */ |
| public |
| StringBuffer format(Date date, StringBuffer sbuf, |
| FieldPosition fieldPosition) { |
| //System.err.println(":"+ date.getTime() + " - " + startTime); |
| return sbuf.append((date.getTime() - startTime)); |
| } |
| |
| /** |
| This method does not do anything but return <code>null</code>. |
| */ |
| public |
| Date parse(java.lang.String s, ParsePosition pos) { |
| return null; |
| } |
| |
| /** |
| * Sets the timezone. |
| * Ignored by this formatter, but intercepted to prevent |
| * NullPointerException in superclass. |
| * @param tz TimeZone timezone |
| */ |
| public void setTimeZone(final TimeZone tz) { |
| } |
| |
| } |