| /* |
| * 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.commons.lang3.time; |
| |
| import java.util.Date; |
| import java.util.TimeZone; |
| |
| /** |
| * Custom timezone that contains offset from GMT. |
| * |
| * @since 3.7 |
| */ |
| class GmtTimeZone extends TimeZone { |
| |
| private static final int MILLISECONDS_PER_MINUTE = 60 * 1000; |
| private static final int MINUTES_PER_HOUR = 60; |
| private static final int HOURS_PER_DAY = 24; |
| |
| // Serializable! |
| static final long serialVersionUID = 1L; |
| |
| private final int offset; |
| private final String zoneId; |
| |
| GmtTimeZone(final boolean negate, final int hours, final int minutes) { |
| if (hours >= HOURS_PER_DAY) { |
| throw new IllegalArgumentException(hours + " hours out of range"); |
| } |
| if (minutes >= MINUTES_PER_HOUR) { |
| throw new IllegalArgumentException(minutes + " minutes out of range"); |
| } |
| final int milliseconds = (minutes + (hours * MINUTES_PER_HOUR)) * MILLISECONDS_PER_MINUTE; |
| offset = negate ? -milliseconds : milliseconds; |
| zoneId = twoDigits( |
| twoDigits(new StringBuilder(9).append("GMT").append(negate ? '-' : '+'), hours) |
| .append(':'), minutes).toString(); |
| |
| } |
| |
| private static StringBuilder twoDigits(final StringBuilder sb, final int n) { |
| return sb.append((char) ('0' + (n / 10))).append((char) ('0' + (n % 10))); |
| } |
| |
| @Override |
| public int getOffset(final int era, final int year, final int month, final int day, final int dayOfWeek, final int milliseconds) { |
| return offset; |
| } |
| |
| @Override |
| public void setRawOffset(final int offsetMillis) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public int getRawOffset() { |
| return offset; |
| } |
| |
| @Override |
| public String getID() { |
| return zoneId; |
| } |
| |
| @Override |
| public boolean useDaylightTime() { |
| return false; |
| } |
| |
| @Override |
| public boolean inDaylightTime(final Date date) { |
| return false; |
| } |
| |
| @Override |
| public String toString() { |
| return "[GmtTimeZone id=\"" + zoneId + "\",offset=" + offset + ']'; |
| } |
| |
| @Override |
| public int hashCode() { |
| return offset; |
| } |
| |
| @Override |
| public boolean equals(final Object other) { |
| if (!(other instanceof GmtTimeZone)) { |
| return false; |
| } |
| return zoneId == ((GmtTimeZone) other).zoneId; |
| } |
| } |