/* ==================================================================== 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.hpsf; import java.io.IOException; import java.io.OutputStream; import java.io.UnsupportedEncodingException; import org.apache.poi.util.Internal; import org.apache.poi.util.LittleEndian; import org.apache.poi.util.POILogFactory; import org.apache.poi.util.POILogger; @Internal class CodePageString { private final static POILogger logger = POILogFactory .getLogger( CodePageString.class ); private static String codepageToEncoding( final int codepage ) throws UnsupportedEncodingException { if ( codepage <= 0 ) throw new UnsupportedEncodingException( "Codepage number may not be " + codepage ); switch ( codepage ) { case Constants.CP_UTF16: return "UTF-16"; case Constants.CP_UTF16_BE: return "UTF-16BE"; case Constants.CP_UTF8: return "UTF-8"; case Constants.CP_037: return "cp037"; case Constants.CP_GBK: return "GBK"; case Constants.CP_MS949: return "ms949"; case Constants.CP_WINDOWS_1250: return "windows-1250"; case Constants.CP_WINDOWS_1251: return "windows-1251"; case Constants.CP_WINDOWS_1252: return "windows-1252"; case Constants.CP_WINDOWS_1253: return "windows-1253"; case Constants.CP_WINDOWS_1254: return "windows-1254"; case Constants.CP_WINDOWS_1255: return "windows-1255"; case Constants.CP_WINDOWS_1256: return "windows-1256"; case Constants.CP_WINDOWS_1257: return "windows-1257"; case Constants.CP_WINDOWS_1258: return "windows-1258"; case Constants.CP_JOHAB: return "johab"; case Constants.CP_MAC_ROMAN: return "MacRoman"; case Constants.CP_MAC_JAPAN: return "SJIS"; case Constants.CP_MAC_CHINESE_TRADITIONAL: return "Big5"; case Constants.CP_MAC_KOREAN: return "EUC-KR"; case Constants.CP_MAC_ARABIC: return "MacArabic"; case Constants.CP_MAC_HEBREW: return "MacHebrew"; case Constants.CP_MAC_GREEK: return "MacGreek"; case Constants.CP_MAC_CYRILLIC: return "MacCyrillic"; case Constants.CP_MAC_CHINESE_SIMPLE: return "EUC_CN"; case Constants.CP_MAC_ROMANIA: return "MacRomania"; case Constants.CP_MAC_UKRAINE: return "MacUkraine"; case Constants.CP_MAC_THAI: return "MacThai"; case Constants.CP_MAC_CENTRAL_EUROPE: return "MacCentralEurope"; case Constants.CP_MAC_ICELAND: return "MacIceland"; case Constants.CP_MAC_TURKISH: return "MacTurkish"; case Constants.CP_MAC_CROATIAN: return "MacCroatian"; case Constants.CP_US_ACSII: case Constants.CP_US_ASCII2: return "US-ASCII"; case Constants.CP_KOI8_R: return "KOI8-R"; case Constants.CP_ISO_8859_1: return "ISO-8859-1"; case Constants.CP_ISO_8859_2: return "ISO-8859-2"; case Constants.CP_ISO_8859_3: return "ISO-8859-3"; case Constants.CP_ISO_8859_4: return "ISO-8859-4"; case Constants.CP_ISO_8859_5: return "ISO-8859-5"; case Constants.CP_ISO_8859_6: return "ISO-8859-6"; case Constants.CP_ISO_8859_7: return "ISO-8859-7"; case Constants.CP_ISO_8859_8: return "ISO-8859-8"; case Constants.CP_ISO_8859_9: return "ISO-8859-9"; case Constants.CP_ISO_2022_JP1: case Constants.CP_ISO_2022_JP2: case Constants.CP_ISO_2022_JP3: return "ISO-2022-JP"; case Constants.CP_ISO_2022_KR: return "ISO-2022-KR"; case Constants.CP_EUC_JP: return "EUC-JP"; case Constants.CP_EUC_KR: return "EUC-KR"; case Constants.CP_GB2312: return "GB2312"; case Constants.CP_GB18030: return "GB18030"; case Constants.CP_SJIS: return "SJIS"; default: return "cp" + codepage; } } private byte[] _value; CodePageString( final byte[] data, final int startOffset ) { int offset = startOffset; int size = LittleEndian.getInt( data, offset ); offset += LittleEndian.INT_SIZE; _value = LittleEndian.getByteArray( data, offset, size ); if ( _value[size - 1] != 0 ) throw new IllegalPropertySetDataException( "CodePageString started at offset #" + offset + " is not NULL-terminated" ); } CodePageString( String string, int codepage ) throws UnsupportedEncodingException { setJavaValue( string, codepage ); } String getJavaValue( int codepage ) throws UnsupportedEncodingException { String result; if ( codepage == -1 ) result = new String( _value ); else result = new String( _value, codepageToEncoding( codepage ) ); final int terminator = result.indexOf( '\0' ); if ( terminator == -1 ) { logger.log( POILogger.WARN, "String terminator (\\0) for CodePageString property value not found." + "Continue without trimming and hope for the best." ); return result; } if ( terminator != result.length() - 1 ) { logger.log( POILogger.WARN, "String terminator (\\0) for CodePageString property value occured before the end of string. " + "Trimming and hope for the best." ); } return result.substring( 0, terminator ); } int getSize() { return LittleEndian.INT_SIZE + _value.length; } void setJavaValue( String string, int codepage ) throws UnsupportedEncodingException { if ( codepage == -1 ) _value = ( string + "\0" ).getBytes(); else _value = ( string + "\0" ) .getBytes( codepageToEncoding( codepage ) ); } int write( OutputStream out ) throws IOException { LittleEndian.putInt( _value.length, out ); out.write( _value ); return LittleEndian.INT_SIZE + _value.length; } }