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A library to read PST files with java, without need for external libraries.
/**
* Copyright 2010 Richard Johnson & Orin Eman
*
* 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.
*
* ---
*
* This file is part of java-libpst.
*
* java-libpst is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* java-libpst is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with java-libpst. If not, see items;
protected HashMap localDescriptorItems = null;
protected LinkedHashMap> children;
protected PSTObject(PSTFile theFile, DescriptorIndexNode descriptorIndexNode)
throws PSTException, IOException
{
this.pstFile = theFile;
this.descriptorIndexNode = descriptorIndexNode;
//descriptorIndexNode.readData(theFile);
//PSTTableBC table = new PSTTableBC(descriptorIndexNode.dataBlock.data, descriptorIndexNode.dataBlock.blockOffsets);
PSTTableBC table = new PSTTableBC(new PSTNodeInputStream(pstFile, pstFile.getOffsetIndexNode(descriptorIndexNode.dataOffsetIndexIdentifier)));
//System.out.println(table);
this.items = table.getItems();
if (descriptorIndexNode.localDescriptorsOffsetIndexIdentifier != 0) {
//PSTDescriptor descriptor = new PSTDescriptor(theFile, descriptorIndexNode.localDescriptorsOffsetIndexIdentifier);
//localDescriptorItems = descriptor.getChildren();
this.localDescriptorItems = theFile.getPSTDescriptorItems(descriptorIndexNode.localDescriptorsOffsetIndexIdentifier);
}
}
/**
* for pre-population
* @param theFile
* @param folderIndexNode
* @param table
*/
protected PSTObject(PSTFile theFile, DescriptorIndexNode folderIndexNode, PSTTableBC table, HashMap localDescriptorItems) {
this.pstFile = theFile;
this.descriptorIndexNode = folderIndexNode;
this.items = table.getItems();
this.table = table;
this.localDescriptorItems = localDescriptorItems;
}
protected PSTTableBC table;
/**
* get the descriptor node for this item
* this identifies the location of the node in the BTree and associated info
* @return item's descriptor node
*/
public DescriptorIndexNode getDescriptorNode() {
return this.descriptorIndexNode;
}
/**
* get the descriptor identifier for this item
* can be used for loading objects through detectAndLoadPSTObject(PSTFile theFile, long descriptorIndex)
* @return item's descriptor node identifier
*/
public long getDescriptorNodeId() {
return this.descriptorIndexNode.descriptorIdentifier;
}
public int getNodeType() {
return PSTObject.getNodeType(this.descriptorIndexNode.descriptorIdentifier);
}
public static int getNodeType(int descriptorIdentifier) {
return descriptorIdentifier & 0x1F;
}
protected int getIntItem(int identifier) {
return getIntItem(identifier, 0);
}
protected int getIntItem(int identifier, int defaultValue) {
if (this.items.containsKey(identifier)) {
PSTTableBCItem item = this.items.get(identifier);
return item.entryValueReference;
}
return defaultValue;
}
protected boolean getBooleanItem(int identifier) {
return getBooleanItem(identifier, false);
}
protected boolean getBooleanItem(int identifier, boolean defaultValue) {
if (this.items.containsKey(identifier)) {
PSTTableBCItem item = this.items.get(identifier);
return item.entryValueReference != 0;
}
return defaultValue;
}
protected double getDoubleItem(int identifier) {
return getDoubleItem(identifier, 0);
}
protected double getDoubleItem(int identifier, double defaultValue) {
if (this.items.containsKey(identifier)) {
PSTTableBCItem item = this.items.get(identifier);
long longVersion = PSTObject.convertLittleEndianBytesToLong(item.data);
return Double.longBitsToDouble(longVersion);
}
return defaultValue;
}
protected long getLongItem(int identifier) {
return getLongItem(identifier, 0);
}
protected long getLongItem(int identifier, long defaultValue) {
if (this.items.containsKey(identifier)) {
PSTTableBCItem item = this.items.get(identifier);
if (item.entryValueType == 0x0003) {
// we are really just an int
return item.entryValueReference;
} else if ( item.entryValueType == 0x0014 ){
// we are a long
if ( item.data != null && item.data.length == 8 ) {
return PSTObject.convertLittleEndianBytesToLong(item.data, 0, 8);
} else {
System.err.printf("Invalid data length for long id 0x%04X\n", identifier);
// Return the default value for now...
}
}
}
return defaultValue;
}
protected String getStringItem(int identifier) {
return getStringItem(identifier, 0);
}
protected String getStringItem(int identifier, int stringType) {
return getStringItem(identifier, stringType, null);
}
protected String getStringItem(int identifier, int stringType, String codepage) {
PSTTableBCItem item = this.items.get(identifier);
if ( item != null ) {
if (codepage == null) {
codepage = this.getStringCodepage();
}
// get the string type from the item if not explicitly set
if ( stringType == 0 ) {
stringType = item.entryValueType;
}
// see if there is a descriptor entry
if ( !item.isExternalValueReference ) {
//System.out.println("here: "+new String(item.data)+this.descriptorIndexNode.descriptorIdentifier);
return PSTObject.createJavaString(item.data, stringType, codepage);
}
if (this.localDescriptorItems != null &&
this.localDescriptorItems.containsKey(item.entryValueReference))
{
// we have a hit!
PSTDescriptorItem descItem = this.localDescriptorItems.get(item.entryValueReference);
try {
byte[] data = descItem.getData();
if ( data == null ) {
return "";
}
return PSTObject.createJavaString(data, stringType, codepage);
} catch (Exception e) {
System.err.printf("Exception %s decoding string %s: %s\n",
e.toString(),
PSTFile.getPropertyDescription(identifier, stringType), data != null ? data.toString() : "null");
return "";
}
//System.out.printf("PSTObject.getStringItem - item isn't a string: 0x%08X\n", identifier);
//return "";
}
return PSTObject.createJavaString(data, stringType, codepage);
}
return "";
}
static String createJavaString(byte[] data, int stringType, String codepage)
{
try {
if ( stringType == 0x1F ) {
return new String(data, "UTF-16LE");
}
if (codepage == null) {
return new String(data);
} else {
codepage = codepage.toUpperCase();
return new String(data, codepage);
}
/*
if (codepage == null || codepage.toUpperCase().equals("UTF-8") || codepage.toUpperCase().equals("UTF-7")) {
// PST UTF-8 strings are not... really UTF-8
// it seems that they just don't use multibyte chars at all.
// indeed, with some crylic chars in there, the difficult chars are just converted to %3F(?)
// I suspect that outlook actually uses RTF to store these problematic strings.
StringBuffer sbOut = new StringBuffer();
for (int x = 0; x < data.length; x++) {
sbOut.append((char)(data[x] & 0xFF)); // just blindly accept the byte as a UTF char, seems right half the time
}
return new String(sbOut);
} else {
codepage = codepage.toUpperCase();
return new String(data, codepage);
}
*/
} catch (Exception err) {
System.err.println("Unable to decode string");
err.printStackTrace();
return "";
}
}
private String getStringCodepage() {
// try and get the codepage
PSTTableBCItem cpItem = this.items.get(0x3FFD); // PidTagMessageCodepage
if (cpItem == null) {
cpItem = this.items.get(0x3FDE); // PidTagInternetCodepage
}
if (cpItem != null) {
return PSTFile.getInternetCodePageCharset(cpItem.entryValueReference);
}
return null;
}
public Date getDateItem(int identifier) {
if ( this.items.containsKey(identifier) ) {
PSTTableBCItem item = this.items.get(identifier);
if (item.data.length == 0 ) {
return new Date(0);
}
int high = (int)PSTObject.convertLittleEndianBytesToLong(item.data, 4, 8);
int low = (int)PSTObject.convertLittleEndianBytesToLong(item.data, 0, 4);
return PSTObject.filetimeToDate(high, low);
}
return null;
}
protected byte[] getBinaryItem(int identifier) {
if (this.items.containsKey(identifier)) {
PSTTableBCItem item = this.items.get(identifier);
if ( item.entryValueType == 0x0102 ) {
if ( !item.isExternalValueReference ) {
return item.data;
}
if ( this.localDescriptorItems != null &&
this.localDescriptorItems.containsKey(item.entryValueReference))
{
// we have a hit!
PSTDescriptorItem descItem = this.localDescriptorItems.get(item.entryValueReference);
try {
return descItem.getData();
} catch (Exception e) {
System.err.printf("Exception reading binary item: reference 0x%08X\n", item.entryValueReference);
return null;
}
}
//System.out.println("External reference!!!\n");
}
}
return null;
}
protected PSTTimeZone getTimeZoneItem(int identifier) {
byte[] tzData = getBinaryItem(identifier);
if ( tzData != null && tzData.length != 0 ) {
return new PSTTimeZone(tzData);
}
return null;
}
public String getMessageClass() {
return this.getStringItem(0x001a);
}
public String toString() {
return this.localDescriptorItems + "\n" +
(this.items);
}
/**
* These are the common properties, some don't really appear to be common across folders and emails, but hey
*/
/**
* get the display name
*/
public String getDisplayName() {
return this.getStringItem(0x3001);
}
/**
* Address type
* Known values are SMTP, EX (Exchange) and UNKNOWN
*/
public String getAddrType() {
return this.getStringItem(0x3002);
}
/**
* E-mail address
*/
public String getEmailAddress() {
return this.getStringItem(0x3003);
}
/**
* Comment
*/
public String getComment() {
return this.getStringItem(0x3004);
}
/**
* Creation time
*/
public Date getCreationTime() {
return this.getDateItem(0x3007);
}
/**
* Modification time
*/
public Date getLastModificationTime() {
return this.getDateItem(0x3008);
}
/**
* Static stuff below
* ------------------
*/
// substitution table for the compressible encryption type.
static int[] compEnc = {
0x47, 0xf1, 0xb4, 0xe6, 0x0b, 0x6a, 0x72, 0x48, 0x85, 0x4e, 0x9e, 0xeb, 0xe2, 0xf8, 0x94, 0x53,
0xe0, 0xbb, 0xa0, 0x02, 0xe8, 0x5a, 0x09, 0xab, 0xdb, 0xe3, 0xba, 0xc6, 0x7c, 0xc3, 0x10, 0xdd,
0x39, 0x05, 0x96, 0x30, 0xf5, 0x37, 0x60, 0x82, 0x8c, 0xc9, 0x13, 0x4a, 0x6b, 0x1d, 0xf3, 0xfb,
0x8f, 0x26, 0x97, 0xca, 0x91, 0x17, 0x01, 0xc4, 0x32, 0x2d, 0x6e, 0x31, 0x95, 0xff, 0xd9, 0x23,
0xd1, 0x00, 0x5e, 0x79, 0xdc, 0x44, 0x3b, 0x1a, 0x28, 0xc5, 0x61, 0x57, 0x20, 0x90, 0x3d, 0x83,
0xb9, 0x43, 0xbe, 0x67, 0xd2, 0x46, 0x42, 0x76, 0xc0, 0x6d, 0x5b, 0x7e, 0xb2, 0x0f, 0x16, 0x29,
0x3c, 0xa9, 0x03, 0x54, 0x0d, 0xda, 0x5d, 0xdf, 0xf6, 0xb7, 0xc7, 0x62, 0xcd, 0x8d, 0x06, 0xd3,
0x69, 0x5c, 0x86, 0xd6, 0x14, 0xf7, 0xa5, 0x66, 0x75, 0xac, 0xb1, 0xe9, 0x45, 0x21, 0x70, 0x0c,
0x87, 0x9f, 0x74, 0xa4, 0x22, 0x4c, 0x6f, 0xbf, 0x1f, 0x56, 0xaa, 0x2e, 0xb3, 0x78, 0x33, 0x50,
0xb0, 0xa3, 0x92, 0xbc, 0xcf, 0x19, 0x1c, 0xa7, 0x63, 0xcb, 0x1e, 0x4d, 0x3e, 0x4b, 0x1b, 0x9b,
0x4f, 0xe7, 0xf0, 0xee, 0xad, 0x3a, 0xb5, 0x59, 0x04, 0xea, 0x40, 0x55, 0x25, 0x51, 0xe5, 0x7a,
0x89, 0x38, 0x68, 0x52, 0x7b, 0xfc, 0x27, 0xae, 0xd7, 0xbd, 0xfa, 0x07, 0xf4, 0xcc, 0x8e, 0x5f,
0xef, 0x35, 0x9c, 0x84, 0x2b, 0x15, 0xd5, 0x77, 0x34, 0x49, 0xb6, 0x12, 0x0a, 0x7f, 0x71, 0x88,
0xfd, 0x9d, 0x18, 0x41, 0x7d, 0x93, 0xd8, 0x58, 0x2c, 0xce, 0xfe, 0x24, 0xaf, 0xde, 0xb8, 0x36,
0xc8, 0xa1, 0x80, 0xa6, 0x99, 0x98, 0xa8, 0x2f, 0x0e, 0x81, 0x65, 0x73, 0xe4, 0xc2, 0xa2, 0x8a,
0xd4, 0xe1, 0x11, 0xd0, 0x08, 0x8b, 0x2a, 0xf2, 0xed, 0x9a, 0x64, 0x3f, 0xc1, 0x6c, 0xf9, 0xec
};
/**
* Output a number in a variety of formats for easier consumption
* @param data
*/
public static void printFormattedNumber(String pref, long number) {
System.out.print(pref);
printFormattedNumber(number);
}
public static void printFormattedNumber(long number) {
System.out.print("dec: ");
System.out.print(number);
System.out.print(", hex: ");
System.out.print(Long.toHexString(number));
System.out.print(", bin: ");
System.out.println(Long.toBinaryString(number));
}
/**
* Output a dump of data in hex format in the order it was read in
* @param data
* @param pretty
*/
public static void printHexFormatted(byte[] data, boolean pretty) {
printHexFormatted(data,pretty, new int[0]);
}
protected static void printHexFormatted(byte[] data, boolean pretty, int[] indexes) {
// groups of two
if (pretty) { System.out.println("---"); }
long tmpLongValue;
String line = "";
int nextIndex = 0;
int indexIndex = 0;
if (indexes.length > 0) {
nextIndex = indexes[0];
indexIndex++;
}
for (int x = 0; x < data.length; x++) {
tmpLongValue = (long)data[x] & 0xff;
if (indexes.length > 0 &&
x == nextIndex &&
nextIndex < data.length)
{
System.out.print("+");
line += "+";
while (indexIndex < indexes.length-1 && indexes[indexIndex] <= nextIndex)
{
indexIndex++;
}
nextIndex = indexes[indexIndex];
//indexIndex++;
}
if (Character.isLetterOrDigit((char)tmpLongValue)) {
line += (char)tmpLongValue;
}
else
{
line += ".";
}
if (Long.toHexString(tmpLongValue).length() < 2) {
System.out.print("0");
}
System.out.print(Long.toHexString(tmpLongValue));
if (x % 2 == 1 && pretty) {
System.out.print(" ");
}
if (x % 16 == 15 && pretty) {
System.out.print(" "+line);
System.out.println("");
line = "";
}
}
if (pretty) { System.out.println(" "+line); System.out.println("---"); System.out.println(data.length); } else { }
}
/**
* decode a lump of data that has been encrypted with the compressible encryption
* @param data
* @return decoded data
*/
protected static byte[] decode(byte[] data) {
int temp;
for (int x = 0; x < data.length; x++) {
temp = data[x] & 0xff;
data[x] = (byte)compEnc[temp];
}
return data;
}
protected static byte[] encode(byte[] data) {
// create the encoding array...
int[] enc = new int[compEnc.length];
for (int x = 0; x < enc.length; x++) {
enc[compEnc[x]] = x;
}
// now it's just the same as decode...
int temp;
for (int x = 0; x < data.length; x++) {
temp = data[x] & 0xff;
data[x] = (byte)enc[temp];
}
return data;
}
/**
* Utility function for converting little endian bytes into a usable java long
* @param data
* @return long version of the data
*/
public static long convertLittleEndianBytesToLong(byte[] data) {
return convertLittleEndianBytesToLong(data, 0, data.length);
}
/**
* Utility function for converting little endian bytes into a usable java long
* @param data
* @param start
* @param end
* @return long version of the data
*/
public static long convertLittleEndianBytesToLong(byte[] data, int start, int end) {
long offset = data[end-1] & 0xff;
long tmpLongValue;
for (int x = end-2; x >= start; x--) {
offset = offset << 8;
tmpLongValue = (long)data[x] & 0xff;
offset |= tmpLongValue;
}
return offset;
}
/**
* Utility function for converting big endian bytes into a usable java long
* @param data
* @param start
* @param end
* @return long version of the data
*/
public static long convertBigEndianBytesToLong(byte[] data, int start, int end) {
long offset = 0;
for ( int x = start; x < end; ++x ) {
offset = offset << 8;
offset |= ((long)data[x] & 0xFFL);
}
return offset;
}
/*
protected static boolean isPSTArray(byte[] data) {
return (data[0] == 1 && data[1] == 1);
}
/**/
/*
protected static int[] getBlockOffsets(RandomAccessFile in, byte[] data)
throws IOException, PSTException
{
// is the data an array?
if (!(data[0] == 1 && data[1] == 1))
{
throw new PSTException("Unable to process array, does not appear to be one!");
}
// we are an array!
// get the array items and merge them together
int numberOfEntries = (int)PSTObject.convertLittleEndianBytesToLong(data, 2, 4);
int[] output = new int[numberOfEntries];
int tableOffset = 8;
int blockOffset = 0;
for (int y = 0; y < numberOfEntries; y++) {
// get the offset identifier
long tableOffsetIdentifierIndex = PSTObject.convertLittleEndianBytesToLong(data, tableOffset, tableOffset+8);
// clear the last bit of the identifier. Why so hard?
tableOffsetIdentifierIndex = (tableOffsetIdentifierIndex & 0xfffffffe);
OffsetIndexItem tableOffsetIdentifier = PSTObject.getOffsetIndexNode(in, tableOffsetIdentifierIndex);
blockOffset += tableOffsetIdentifier.size;
output[y] = blockOffset;
tableOffset += 8;
}
// replace the item data with the stuff from the array...
return output;
}
/**/
/**
* Detect and load a PST Object from a file with the specified descriptor index
* @param theFile
* @param descriptorIndex
* @return PSTObject with that index
* @throws IOException
* @throws PSTException
*/
public static PSTObject detectAndLoadPSTObject(PSTFile theFile, long descriptorIndex)
throws IOException, PSTException
{
return PSTObject.detectAndLoadPSTObject(theFile, theFile.getDescriptorIndexNode(descriptorIndex));
}
/**
* Detect and load a PST Object from a file with the specified descriptor index
* @param theFile
* @param folderIndexNode
* @return PSTObject with that index
* @throws IOException
* @throws PSTException
*/
static PSTObject detectAndLoadPSTObject(PSTFile theFile, DescriptorIndexNode folderIndexNode)
throws IOException, PSTException
{
int nidType = (folderIndexNode.descriptorIdentifier & 0x1F);
if ( nidType == 0x02 || nidType == 0x03 || nidType == 0x04 ) {
PSTTableBC table = new PSTTableBC(new PSTNodeInputStream(theFile, theFile.getOffsetIndexNode(folderIndexNode.dataOffsetIndexIdentifier)));
HashMap localDescriptorItems = null;
if (folderIndexNode.localDescriptorsOffsetIndexIdentifier != 0) {
localDescriptorItems = theFile.getPSTDescriptorItems(folderIndexNode.localDescriptorsOffsetIndexIdentifier);
}
if ( nidType == 0x02 || nidType == 0x03 ) {
return new PSTFolder(theFile, folderIndexNode, table, localDescriptorItems);
} else {
return PSTObject.createAppropriatePSTMessageObject(theFile, folderIndexNode, table, localDescriptorItems);
}
}
else
{
throw new PSTException("Unknown child type with offset id: "+folderIndexNode.localDescriptorsOffsetIndexIdentifier);
}
}
static PSTMessage createAppropriatePSTMessageObject(PSTFile theFile, DescriptorIndexNode folderIndexNode, PSTTableBC table, HashMap localDescriptorItems)
{
PSTTableBCItem item = table.getItems().get(0x001a);
String messageClass = "";
if ( item != null ) {
messageClass = item.getStringValue();
}
if (messageClass.equals("IPM.Note")) {
return new PSTMessage(theFile, folderIndexNode, table, localDescriptorItems);
} else if (messageClass.equals("IPM.Appointment") ||
messageClass.equals("IPM.OLE.CLASS.{00061055-0000-0000-C000-000000000046}") ||
messageClass.startsWith("IPM.Schedule.Meeting")) {
return new PSTAppointment(theFile, folderIndexNode, table, localDescriptorItems);
} else if (messageClass.equals("IPM.Contact")) {
return new PSTContact(theFile, folderIndexNode, table, localDescriptorItems);
} else if (messageClass.equals("IPM.Task")) {
return new PSTTask(theFile, folderIndexNode, table, localDescriptorItems);
} else if (messageClass.equals("IPM.Activity")) {
return new PSTActivity(theFile, folderIndexNode, table, localDescriptorItems);
} else if (messageClass.equals("IPM.Post.Rss")) {
return new PSTRss(theFile, folderIndexNode, table, localDescriptorItems);
} else if (messageClass.equals("IPM.DistList")) {
return new PSTDistList(theFile, folderIndexNode, table, localDescriptorItems);
} else {
System.err.println("Unknown message type: "+messageClass);
}
return new PSTMessage(theFile, folderIndexNode, table, localDescriptorItems);
}
static String guessPSTObjectType(PSTFile theFile, DescriptorIndexNode folderIndexNode)
throws IOException, PSTException
{
PSTTableBC table = new PSTTableBC(new PSTNodeInputStream(theFile, theFile.getOffsetIndexNode(folderIndexNode.dataOffsetIndexIdentifier)));
// get the table items and look at the types we are dealing with
Set keySet = table.getItems().keySet();
Iterator iterator = keySet.iterator();
while (iterator.hasNext()) {
Integer key = iterator.next();
if (key.intValue() >= 0x0001 &&
key.intValue() <= 0x0bff)
{
return "Message envelope";
}
else if (key.intValue() >= 0x1000 &&
key.intValue() <= 0x2fff)
{
return "Message content";
}
else if (key.intValue() >= 0x3400 &&
key.intValue() <= 0x35ff)
{
return "Message store";
}
else if (key.intValue() >= 0x3600 &&
key.intValue() <= 0x36ff)
{
return "Folder and address book";
}
else if (key.intValue() >= 0x3700 &&
key.intValue() <= 0x38ff)
{
return "Attachment";
}
else if (key.intValue() >= 0x3900 &&
key.intValue() <= 0x39ff)
{
return "Address book";
}
else if (key.intValue() >= 0x3a00 &&
key.intValue() <= 0x3bff)
{
return "Messaging user";
}
else if (key.intValue() >= 0x3c00 &&
key.intValue() <= 0x3cff)
{
return "Distribution list";
}
}
return "Unknown";
}
/**
* the code below was taken from a random apache project
* http://www.koders.com/java/fidA9D4930E7443F69F32571905DD4CA01E4D46908C.aspx
* my bit-shifting isn't that 1337
*/
/**
* The difference between the Windows epoch (1601-01-01
* 00:00:00) and the Unix epoch (1970-01-01 00:00:00) in
* milliseconds: 11644473600000L. (Use your favorite spreadsheet
* program to verify the correctness of this value. By the way,
* did you notice that you can tell from the epochs which
* operating system is the modern one? :-))
*/
private static final long EPOCH_DIFF = 11644473600000L;
/**
* Converts a Windows FILETIME into a {@link Date}. The Windows
* FILETIME structure holds a date and time associated with a
* file. The structure identifies a 64-bit integer specifying the
* number of 100-nanosecond intervals which have passed since
* January 1, 1601. This 64-bit value is split into the two double
* words stored in the structure.
*
* @param high The higher double word of the FILETIME structure.
* @param low The lower double word of the FILETIME structure.
* @return The Windows FILETIME as a {@link Date}.
*/
protected static Date filetimeToDate(final int high, final int low)
{
final long filetime = ((long) high) << 32 | (low & 0xffffffffL);
//System.out.printf("0x%X\n", filetime);
final long ms_since_16010101 = filetime / (1000 * 10);
final long ms_since_19700101 = ms_since_16010101 - EPOCH_DIFF;
return new Date(ms_since_19700101);
}
public static Calendar apptTimeToCalendar(int minutes) {
final long ms_since_16010101 = minutes * (60*1000L);
final long ms_since_19700101 = ms_since_16010101 - EPOCH_DIFF;
Calendar c = Calendar.getInstance(PSTTimeZone.utcTimeZone);
c.setTimeInMillis(ms_since_19700101);
return c;
}
public static Calendar apptTimeToUTC(int minutes, PSTTimeZone tz) {
// Must convert minutes since 1/1/1601 in local time to UTC
// There's got to be a better way of doing this...
// First get a UTC calendar object that contains _local time_
Calendar cUTC = PSTObject.apptTimeToCalendar(minutes);
if ( tz != null ) {
// Create an empty Calendar object with the required time zone
Calendar cLocal = Calendar.getInstance(tz.getSimpleTimeZone());
cLocal.clear();
// Now transfer the local date/time from the UTC calendar object
// to the object that knows about the time zone...
cLocal.set(cUTC.get(Calendar.YEAR),
cUTC.get(Calendar.MONTH),
cUTC.get(Calendar.DATE),
cUTC.get(Calendar.HOUR_OF_DAY),
cUTC.get(Calendar.MINUTE),
cUTC.get(Calendar.SECOND));
// Get the true UTC from the local time calendar object.
// Drop any milliseconds, they won't be printed anyway!
long utcs = cLocal.getTimeInMillis() / 1000;
// Finally, set the true UTC in the UTC calendar object
cUTC.setTimeInMillis(utcs * 1000);
} // else hope for the best!
return cUTC;
}
}