| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.karaf.shell.log.layout; |
| |
| import java.text.DateFormat; |
| import java.text.FieldPosition; |
| import java.text.ParsePosition; |
| import java.util.Calendar; |
| import java.util.Date; |
| import java.util.TimeZone; |
| |
| /** |
| * Copied from log4j |
| */ |
| /** |
| Formats a {@link Date} in the format "HH:mm:ss,SSS" for example, |
| "15:49:37,459". |
| */ |
| public class AbsoluteTimeDateFormat extends DateFormat { |
| |
| /** |
| String constant used to specify {@link |
| org.apache.log4j.helpers.AbsoluteTimeDateFormat} in layouts. Current |
| value is <b>ABSOLUTE</b>. */ |
| public final static String ABS_TIME_DATE_FORMAT = "ABSOLUTE"; |
| |
| /** |
| String constant used to specify {@link |
| org.apache.log4j.helpers.DateTimeDateFormat} in layouts. Current |
| value is <b>DATE</b>. |
| */ |
| public final static String DATE_AND_TIME_DATE_FORMAT = "DATE"; |
| |
| /** |
| String constant used to specify {@link |
| org.apache.log4j.helpers.ISO8601DateFormat} in layouts. Current |
| value is <b>ISO8601</b>. |
| */ |
| public final static String ISO8601_DATE_FORMAT = "ISO8601"; |
| |
| public |
| AbsoluteTimeDateFormat() { |
| setCalendar(Calendar.getInstance()); |
| } |
| |
| public |
| AbsoluteTimeDateFormat(TimeZone timeZone) { |
| setCalendar(Calendar.getInstance(timeZone)); |
| } |
| |
| private static long previousTime; |
| private static char[] previousTimeWithoutMillis = new char[9]; // "HH:mm:ss." |
| |
| /** |
| Appends to <code>sbuf</code> the time in the format |
| "HH:mm:ss,SSS" for example, "15:49:37,459" |
| |
| @param date the date to format |
| @param sbuf the string buffer to write to |
| @param fieldPosition remains untouched |
| */ |
| public |
| StringBuffer format(Date date, StringBuffer sbuf, |
| FieldPosition fieldPosition) { |
| |
| long now = date.getTime(); |
| int millis = (int)(now % 1000); |
| |
| if ((now - millis) != previousTime) { |
| // We reach this point at most once per second |
| // across all threads instead of each time format() |
| // is called. This saves considerable CPU time. |
| |
| calendar.setTime(date); |
| |
| int start = sbuf.length(); |
| |
| int hour = calendar.get(Calendar.HOUR_OF_DAY); |
| if(hour < 10) { |
| sbuf.append('0'); |
| } |
| sbuf.append(hour); |
| sbuf.append(':'); |
| |
| int mins = calendar.get(Calendar.MINUTE); |
| if(mins < 10) { |
| sbuf.append('0'); |
| } |
| sbuf.append(mins); |
| sbuf.append(':'); |
| |
| int secs = calendar.get(Calendar.SECOND); |
| if(secs < 10) { |
| sbuf.append('0'); |
| } |
| sbuf.append(secs); |
| sbuf.append(','); |
| |
| // store the time string for next time to avoid recomputation |
| sbuf.getChars(start, sbuf.length(), previousTimeWithoutMillis, 0); |
| |
| previousTime = now - millis; |
| } |
| else { |
| sbuf.append(previousTimeWithoutMillis); |
| } |
| |
| |
| |
| if(millis < 100) |
| sbuf.append('0'); |
| if(millis < 10) |
| sbuf.append('0'); |
| |
| sbuf.append(millis); |
| return sbuf; |
| } |
| |
| /** |
| This method does not do anything but return <code>null</code>. |
| */ |
| public |
| Date parse(String s, ParsePosition pos) { |
| return null; |
| } |
| } |