diff options
Diffstat (limited to 'telephony/java/com/android/internal/telephony/cdma/UserData.java')
| -rw-r--r-- | telephony/java/com/android/internal/telephony/cdma/UserData.java | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/telephony/java/com/android/internal/telephony/cdma/UserData.java b/telephony/java/com/android/internal/telephony/cdma/UserData.java new file mode 100644 index 000000000000..599c2b393a6b --- /dev/null +++ b/telephony/java/com/android/internal/telephony/cdma/UserData.java @@ -0,0 +1,165 @@ +/* + * Copyright (C) 2008 The Android Open Source Project + * + * 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. + */ + +package com.android.internal.telephony.cdma.sms; + +import android.util.SparseIntArray; + +import com.android.internal.telephony.SmsHeader; +import com.android.internal.util.HexDump; + +public class UserData { + + /** + * User data encoding types. + * (See 3GPP2 C.R1001-F, v1.0, table 9.1-1) + */ + public static final int ENCODING_OCTET = 0x00; + public static final int ENCODING_IS91_EXTENDED_PROTOCOL = 0x01; + public static final int ENCODING_7BIT_ASCII = 0x02; + public static final int ENCODING_IA5 = 0x03; + public static final int ENCODING_UNICODE_16 = 0x04; + public static final int ENCODING_SHIFT_JIS = 0x05; + public static final int ENCODING_KOREAN = 0x06; + public static final int ENCODING_LATIN_HEBREW = 0x07; + public static final int ENCODING_LATIN = 0x08; + public static final int ENCODING_GSM_7BIT_ALPHABET = 0x09; + public static final int ENCODING_GSM_DCS = 0x0A; + + /** + * IS-91 message types. + * (See TIA/EIS/IS-91-A-ENGL 1999, table 3.7.1.1-3) + */ + public static final int IS91_MSG_TYPE_VOICEMAIL_STATUS = 0x82; + public static final int IS91_MSG_TYPE_SHORT_MESSAGE_FULL = 0x83; + public static final int IS91_MSG_TYPE_CLI = 0x84; + public static final int IS91_MSG_TYPE_SHORT_MESSAGE = 0x85; + + /** + * US ASCII character mapping table. + * + * This table contains only the printable ASCII characters, with a + * 0x20 offset, meaning that the ASCII SPACE character is at index + * 0, with the resulting code of 0x20. + * + * Note this mapping is also equivalent to that used by both the + * IA5 and the IS-91 encodings. For the former this is defined + * using CCITT Rec. T.50 Tables 1 and 3. For the latter IS 637 B, + * Table 4.3.1.4.1-1 -- and note the encoding uses only 6 bits, + * and hence only maps entries up to the '_' character. + * + */ + public static final char[] ASCII_MAP = { + ' ', '!', '"', '#', '$', '%', '&', '\'', '(', ')', '*', '+', ',', '-', '.', '/', + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', ':', ';', '<', '=', '>', '?', + '@', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', + 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', '[', '\\', ']', '^', '_', + '`', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', + 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', '{', '|', '}', '~'}; + + /** + * Character to use when forced to encode otherwise unencodable + * characters, meaning those not in the respective ASCII or GSM + * 7-bit encoding tables. Current choice is SPACE, which is 0x20 + * in both the GSM-7bit and ASCII-7bit encodings. + */ + static final byte UNENCODABLE_7_BIT_CHAR = 0x20; + + /** + * Only elements between these indices in the ASCII table are printable. + */ + public static final int PRINTABLE_ASCII_MIN_INDEX = 0x20; + public static final int ASCII_NL_INDEX = 0x0A; + public static final int ASCII_CR_INDEX = 0x0D; + public static final SparseIntArray charToAscii = new SparseIntArray(); + static { + for (int i = 0; i < ASCII_MAP.length; i++) { + charToAscii.put(ASCII_MAP[i], PRINTABLE_ASCII_MIN_INDEX + i); + } + charToAscii.put('\n', ASCII_NL_INDEX); + charToAscii.put('\r', ASCII_CR_INDEX); + } + + /* + * TODO(cleanup): Move this very generic functionality somewhere + * more general. + */ + /** + * Given a string generate a corresponding ASCII-encoded byte + * array, but limited to printable characters. If the input + * contains unprintable characters, return null. + */ + public static byte[] stringToAscii(String str) { + int len = str.length(); + byte[] result = new byte[len]; + for (int i = 0; i < len; i++) { + int charCode = charToAscii.get(str.charAt(i), -1); + if (charCode == -1) return null; + result[i] = (byte)charCode; + } + return result; + } + + /** + * Mapping for ASCII values less than 32 are flow control signals + * and not used here. + */ + public static final int ASCII_MAP_BASE_INDEX = 0x20; + public static final int ASCII_MAP_MAX_INDEX = ASCII_MAP_BASE_INDEX + ASCII_MAP.length - 1; + + /** + * Contains the data header of the user data + */ + public SmsHeader userDataHeader; + + /** + * Contains the data encoding type for the SMS message + */ + public int msgEncoding; + public boolean msgEncodingSet = false; + + public int msgType; + + /** + * Number of invalid bits in the last byte of data. + */ + public int paddingBits; + + public int numFields; + + /** + * Contains the user data of a SMS message + * (See 3GPP2 C.S0015-B, v2, 4.5.2) + */ + public byte[] payload; + public String payloadStr; + + @Override + public String toString() { + StringBuilder builder = new StringBuilder(); + builder.append("UserData "); + builder.append("{ msgEncoding=" + (msgEncodingSet ? msgEncoding : "unset")); + builder.append(", msgType=" + msgType); + builder.append(", paddingBits=" + paddingBits); + builder.append(", numFields=" + numFields); + builder.append(", userDataHeader=" + userDataHeader); + builder.append(", payload='" + HexDump.toHexString(payload) + "'"); + builder.append(", payloadStr='" + payloadStr + "'"); + builder.append(" }"); + return builder.toString(); + } + +} |