| /* ==================================================================== |
| 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.poi.hmef.attribute; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.text.DateFormat; |
| import java.text.DateFormatSymbols; |
| import java.text.SimpleDateFormat; |
| import java.util.Calendar; |
| import java.util.Date; |
| import java.util.Locale; |
| |
| import org.apache.logging.log4j.LogManager; |
| import org.apache.logging.log4j.Logger; |
| import org.apache.poi.hmef.Attachment; |
| import org.apache.poi.hmef.HMEFMessage; |
| import org.apache.poi.hpsf.Filetime; |
| import org.apache.poi.util.LittleEndian; |
| import org.apache.poi.util.LocaleUtil; |
| |
| /** |
| * A Date attribute which applies to a {@link HMEFMessage} |
| * or one of its {@link Attachment}s. |
| */ |
| public final class TNEFDateAttribute extends TNEFAttribute { |
| private static final Logger LOG = LogManager.getLogger(TNEFDateAttribute.class); |
| private final Date data; |
| |
| /** |
| * Constructs a single new date attribute from the id, type, |
| * and the contents of the stream |
| */ |
| protected TNEFDateAttribute(int id, int type, InputStream inp) throws IOException { |
| super(id, type, inp); |
| |
| byte[] binData = getData(); |
| if(binData.length == 8) { |
| // The value is a 64 bit Windows Filetime |
| this.data = Filetime.filetimeToDate( |
| LittleEndian.getLong(getData(), 0) |
| ); |
| } else if(binData.length == 14) { |
| // It's the 7 date fields. We think it's in UTC... |
| Calendar c = LocaleUtil.getLocaleCalendar(LocaleUtil.TIMEZONE_UTC); |
| c.set(Calendar.YEAR, LittleEndian.getUShort(binData, 0)); |
| c.set(Calendar.MONTH, LittleEndian.getUShort(binData, 2) - 1); // Java months are 0 based! |
| c.set(Calendar.DAY_OF_MONTH, LittleEndian.getUShort(binData, 4)); |
| c.set(Calendar.HOUR_OF_DAY, LittleEndian.getUShort(binData, 6)); |
| c.set(Calendar.MINUTE, LittleEndian.getUShort(binData, 8)); |
| c.set(Calendar.SECOND, LittleEndian.getUShort(binData, 10)); |
| // The 7th field is day of week, which we don't require |
| c.clear(Calendar.MILLISECOND); // Not set in the file |
| this.data = c.getTime(); |
| } else { |
| throw new IllegalArgumentException("Invalid date, found " + binData.length + " bytes"); |
| } |
| } |
| |
| public Date getDate() { |
| return this.data; |
| } |
| |
| public String toString() { |
| DateFormatSymbols dfs = DateFormatSymbols.getInstance(Locale.ROOT); |
| DateFormat df = new SimpleDateFormat("EEE MMM dd HH:mm:ss zzz yyyy", dfs); |
| df.setTimeZone(LocaleUtil.TIMEZONE_UTC); |
| return "Attribute " + getProperty() + ", type=" + getType() + |
| ", date=" + df.format(data); |
| } |
| |
| /** |
| * Returns the Date of a Attribute, converting as appropriate |
| */ |
| public static Date getAsDate(TNEFAttribute attr) { |
| if(attr == null) { |
| return null; |
| } |
| if(attr instanceof TNEFDateAttribute) { |
| return ((TNEFDateAttribute)attr).getDate(); |
| } |
| |
| LOG.atWarn().log("Warning, non date property found: {}", attr); |
| return null; |
| } |
| } |