| /* |
| * 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.geode.internal.logging; |
| |
| import java.text.DateFormat; |
| import java.text.SimpleDateFormat; |
| import java.util.Date; |
| import java.util.Locale; |
| |
| |
| /** |
| * Defines the common date format for GemFire and provides DateFormat instances. |
| */ |
| public class DateFormatter { |
| |
| /** |
| * The format string used to format the timestamp of GemFire log messages |
| */ |
| public static final String FORMAT_STRING = "yyyy/MM/dd HH:mm:ss.SSS z"; |
| |
| /** |
| * the format string used to format the date/time when localized pattern is not ideal |
| */ |
| public static final String LOCALIZED_FORMAT_STRING = "EEE yyyy/MM/dd HH:mm:ss zzz"; |
| |
| /** |
| * Creates a SimpleDateFormat using {@link #FORMAT_STRING}. |
| * |
| * Thread Safety Issue: (From SimpleDateFormat) Date 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. |
| */ |
| public static DateFormat createDateFormat() { |
| return new SimpleDateFormat(FORMAT_STRING); |
| } |
| |
| public static SimpleDateFormat createLocalizedDateFormat() { |
| String pattern = new SimpleDateFormat().toLocalizedPattern(); |
| return new SimpleDateFormat(getModifiedLocalizedPattern(pattern), Locale.getDefault()); |
| } |
| |
| static String getModifiedLocalizedPattern(String pattern) { |
| String pattern_to_use; |
| // will always try to use the localized pattern if the pattern displays the minutes |
| if (pattern.contains("mm")) { |
| // if the localized pattern does not display seconds, add it in the pattern |
| if (!pattern.contains("ss")) { |
| int mm = pattern.indexOf("mm"); |
| pattern_to_use = pattern.substring(0, mm + 2) + ":ss" + pattern.substring(mm + 2); |
| } |
| // if the localized pattern already contains seconds, the pattern should be enough |
| else { |
| pattern_to_use = pattern; |
| } |
| |
| // add the days of week to the pattern if not there yet |
| if (!pattern_to_use.contains("EEE")) { |
| pattern_to_use = "EEE " + pattern_to_use; |
| } |
| |
| if (!pattern_to_use.contains("zzz")) { |
| pattern_to_use = pattern_to_use + " zzz"; |
| } |
| } |
| // if the localized pattern doesn't even contain the minutes, then giving up using the |
| // localized pattern since we have no idea what it is |
| else { |
| pattern_to_use = LOCALIZED_FORMAT_STRING; |
| } |
| |
| return pattern_to_use; |
| } |
| |
| /** |
| * Creates a SimpleDateFormat using specified formatString. |
| */ |
| public static DateFormat createDateFormat(final String formatString) { |
| return new SimpleDateFormat(formatString); |
| } |
| |
| /** |
| * Gets a String representation of the current time. |
| * |
| * @return a String representation of the current time. |
| */ |
| public static String getTimeStamp() { |
| return formatDate(new Date()); |
| } |
| |
| /** |
| * Convert a Date to a timestamp String. |
| * |
| * @param d a Date to format as a timestamp String. |
| * @return a String representation of the current time. |
| */ |
| public static String formatDate(final Date d) { |
| try { |
| return createDateFormat().format(d); |
| } catch (Exception e1) { |
| // Fix bug 21857 |
| try { |
| return d.toString(); |
| } catch (Exception e2) { |
| try { |
| return Long.toString(d.getTime()); |
| } catch (Exception e3) { |
| return "timestampFormatFailed"; |
| } |
| } |
| } |
| } |
| |
| /** |
| * Do not instantiate this class. |
| */ |
| private DateFormatter() { |
| // do not instantiate this class |
| } |
| } |