| /************************************************************** |
| * |
| * 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. |
| * |
| *************************************************************/ |
| |
| |
| |
| /** |
| * Contains common static methods and contants for use within the package. |
| * |
| * @author Herbie Ong |
| */ |
| |
| public final class PDBUtil { |
| |
| /** difference in seconds from Jan 01, 1904 to Jan 01, 1970 */ |
| final static long TIME_DIFF = 2082844800; |
| |
| /** encoding scheme used */ |
| final static String ENCODING = "8859_1"; |
| |
| /** size of a pdb header in bytes */ |
| final static int HEADER_SIZE = 78; |
| |
| /** |
| * This method converts a 4 letter string into the Palm ID integer. |
| * |
| * It is normally used to convert the Palm creator ID string into |
| * the integer version of it. Also use for data types, etc. |
| * |
| * @param s 4 character string. |
| * @return int Palm ID representing the string. |
| * @throws ArrayIndexOutOfBoundsException if string parameter |
| * contains less than 4 characters. |
| */ |
| |
| public static int intID(String s) { |
| |
| int id = -1; |
| int temp = 0; |
| |
| // grab the first char and put it in the high bits |
| // note that we only want 8 lower bits of it. |
| temp = (int) s.charAt(0); |
| id = temp << 24; |
| |
| // grab the second char and add it in. |
| temp = ((int) s.charAt(1)) & 0x00ff; |
| id += temp << 16; |
| |
| // grab the second char and add it in. |
| temp = ((int) s.charAt(2)) & 0x00ff; |
| id += temp << 8; |
| |
| // grab the last char and add it in |
| id += ((int) s.charAt(3)) & 0x00ff; |
| |
| return id; |
| } |
| |
| /** |
| * This method converts an integer into a String given |
| * the Palm ID format. |
| * |
| * @param i Palm id. |
| * @return String string representation. |
| */ |
| |
| public static String stringID(int i) { |
| |
| char ch[] = new char[4]; |
| ch[0] = (char) (i >>> 24); |
| ch[1] = (char) ((i >> 16) & 0x00ff); |
| ch[2] = (char) ((i >> 8) & 0x00ff); |
| ch[3] = (char) (i & 0x00ff); |
| |
| return new String(ch); |
| } |
| } |
| |