diff options
Diffstat (limited to 'telephony/common/com/google/android/mms/pdu/CharacterSets.java')
| -rw-r--r-- | telephony/common/com/google/android/mms/pdu/CharacterSets.java | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/telephony/common/com/google/android/mms/pdu/CharacterSets.java b/telephony/common/com/google/android/mms/pdu/CharacterSets.java new file mode 100644 index 000000000000..27da35e2d928 --- /dev/null +++ b/telephony/common/com/google/android/mms/pdu/CharacterSets.java @@ -0,0 +1,176 @@ +/* + * Copyright (C) 2007 Esmertec AG. + * Copyright (C) 2007 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.google.android.mms.pdu; + +import dalvik.annotation.compat.UnsupportedAppUsage; + +import java.io.UnsupportedEncodingException; +import java.util.HashMap; + +public class CharacterSets { + /** + * IANA assigned MIB enum numbers. + * + * From wap-230-wsp-20010705-a.pdf + * Any-charset = <Octet 128> + * Equivalent to the special RFC2616 charset value "*" + */ + public static final int ANY_CHARSET = 0x00; + public static final int US_ASCII = 0x03; + public static final int ISO_8859_1 = 0x04; + public static final int ISO_8859_2 = 0x05; + public static final int ISO_8859_3 = 0x06; + public static final int ISO_8859_4 = 0x07; + public static final int ISO_8859_5 = 0x08; + public static final int ISO_8859_6 = 0x09; + public static final int ISO_8859_7 = 0x0A; + public static final int ISO_8859_8 = 0x0B; + public static final int ISO_8859_9 = 0x0C; + public static final int SHIFT_JIS = 0x11; + public static final int UTF_8 = 0x6A; + public static final int BIG5 = 0x07EA; + public static final int UCS2 = 0x03E8; + public static final int UTF_16 = 0x03F7; + + /** + * If the encoding of given data is unsupported, use UTF_8 to decode it. + */ + public static final int DEFAULT_CHARSET = UTF_8; + + /** + * Array of MIB enum numbers. + */ + private static final int[] MIBENUM_NUMBERS = { + ANY_CHARSET, + US_ASCII, + ISO_8859_1, + ISO_8859_2, + ISO_8859_3, + ISO_8859_4, + ISO_8859_5, + ISO_8859_6, + ISO_8859_7, + ISO_8859_8, + ISO_8859_9, + SHIFT_JIS, + UTF_8, + BIG5, + UCS2, + UTF_16, + }; + + /** + * The Well-known-charset Mime name. + */ + public static final String MIMENAME_ANY_CHARSET = "*"; + public static final String MIMENAME_US_ASCII = "us-ascii"; + public static final String MIMENAME_ISO_8859_1 = "iso-8859-1"; + public static final String MIMENAME_ISO_8859_2 = "iso-8859-2"; + public static final String MIMENAME_ISO_8859_3 = "iso-8859-3"; + public static final String MIMENAME_ISO_8859_4 = "iso-8859-4"; + public static final String MIMENAME_ISO_8859_5 = "iso-8859-5"; + public static final String MIMENAME_ISO_8859_6 = "iso-8859-6"; + public static final String MIMENAME_ISO_8859_7 = "iso-8859-7"; + public static final String MIMENAME_ISO_8859_8 = "iso-8859-8"; + public static final String MIMENAME_ISO_8859_9 = "iso-8859-9"; + public static final String MIMENAME_SHIFT_JIS = "shift_JIS"; + public static final String MIMENAME_UTF_8 = "utf-8"; + public static final String MIMENAME_BIG5 = "big5"; + public static final String MIMENAME_UCS2 = "iso-10646-ucs-2"; + public static final String MIMENAME_UTF_16 = "utf-16"; + + public static final String DEFAULT_CHARSET_NAME = MIMENAME_UTF_8; + + /** + * Array of the names of character sets. + */ + private static final String[] MIME_NAMES = { + MIMENAME_ANY_CHARSET, + MIMENAME_US_ASCII, + MIMENAME_ISO_8859_1, + MIMENAME_ISO_8859_2, + MIMENAME_ISO_8859_3, + MIMENAME_ISO_8859_4, + MIMENAME_ISO_8859_5, + MIMENAME_ISO_8859_6, + MIMENAME_ISO_8859_7, + MIMENAME_ISO_8859_8, + MIMENAME_ISO_8859_9, + MIMENAME_SHIFT_JIS, + MIMENAME_UTF_8, + MIMENAME_BIG5, + MIMENAME_UCS2, + MIMENAME_UTF_16, + }; + + private static final HashMap<Integer, String> MIBENUM_TO_NAME_MAP; + private static final HashMap<String, Integer> NAME_TO_MIBENUM_MAP; + + static { + // Create the HashMaps. + MIBENUM_TO_NAME_MAP = new HashMap<Integer, String>(); + NAME_TO_MIBENUM_MAP = new HashMap<String, Integer>(); + assert(MIBENUM_NUMBERS.length == MIME_NAMES.length); + int count = MIBENUM_NUMBERS.length - 1; + for(int i = 0; i <= count; i++) { + MIBENUM_TO_NAME_MAP.put(MIBENUM_NUMBERS[i], MIME_NAMES[i]); + NAME_TO_MIBENUM_MAP.put(MIME_NAMES[i], MIBENUM_NUMBERS[i]); + } + } + + private CharacterSets() {} // Non-instantiatable + + /** + * Map an MIBEnum number to the name of the charset which this number + * is assigned to by IANA. + * + * @param mibEnumValue An IANA assigned MIBEnum number. + * @return The name string of the charset. + * @throws UnsupportedEncodingException + */ + @UnsupportedAppUsage + public static String getMimeName(int mibEnumValue) + throws UnsupportedEncodingException { + String name = MIBENUM_TO_NAME_MAP.get(mibEnumValue); + if (name == null) { + throw new UnsupportedEncodingException(); + } + return name; + } + + /** + * Map a well-known charset name to its assigned MIBEnum number. + * + * @param mimeName The charset name. + * @return The MIBEnum number assigned by IANA for this charset. + * @throws UnsupportedEncodingException + */ + @UnsupportedAppUsage + public static int getMibEnumValue(String mimeName) + throws UnsupportedEncodingException { + if(null == mimeName) { + return -1; + } + + Integer mibEnumValue = NAME_TO_MIBENUM_MAP.get(mimeName); + if (mibEnumValue == null) { + throw new UnsupportedEncodingException(); + } + return mibEnumValue; + } +} |