1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 23 24 // MARKER(update_precomp.py): autogen include statement, do not remove 25 #include "precompiled_io.hxx" 26 27 28 #include <osl/mutex.hxx> 29 #include <osl/diagnose.h> 30 31 #include <uno/mapping.hxx> 32 33 #include <cppuhelper/factory.hxx> 34 #include <cppuhelper/implbase3.hxx> 35 #include <cppuhelper/implementationentry.hxx> 36 37 #include <rtl/textenc.h> 38 #include <rtl/tencinfo.h> 39 #include <rtl/unload.h> 40 41 #include "io/dllapi.h" 42 43 #include <com/sun/star/io/XTextOutputStream.hpp> 44 #include <com/sun/star/io/XActiveDataSource.hpp> 45 #include <com/sun/star/lang/XServiceInfo.hpp> 46 47 48 #define IMPLEMENTATION_NAME "com.sun.star.comp.io.TextOutputStream" 49 #define SERVICE_NAME "com.sun.star.io.TextOutputStream" 50 51 using namespace ::osl; 52 using namespace ::rtl; 53 using namespace ::cppu; 54 using namespace ::com::sun::star::uno; 55 using namespace ::com::sun::star::lang; 56 using namespace ::com::sun::star::io; 57 using namespace ::com::sun::star::registry; 58 59 namespace io_TextOutputStream 60 { 61 rtl_StandardModuleCount g_moduleCount = MODULE_COUNT_INIT; 62 //=========================================================================== 63 // Implementation XTextOutputStream 64 65 typedef WeakImplHelper3< XTextOutputStream, XActiveDataSource, XServiceInfo > TextOutputStreamHelper; 66 class OCommandEnvironment; 67 68 class OTextOutputStream : public TextOutputStreamHelper 69 { 70 Reference< XOutputStream > mxStream; 71 72 // Encoding 73 OUString mEncoding; 74 sal_Bool mbEncodingInitialized; 75 rtl_UnicodeToTextConverter mConvUnicode2Text; 76 rtl_UnicodeToTextContext mContextUnicode2Text; 77 78 Sequence<sal_Int8> implConvert( const OUString& rSource ); 79 void checkOutputStream() throw(IOException); 80 81 public: 82 OTextOutputStream(); 83 ~OTextOutputStream(); 84 85 // Methods XTextOutputStream 86 virtual void SAL_CALL writeString( const OUString& aString ) 87 throw(IOException, RuntimeException); 88 virtual void SAL_CALL setEncoding( const OUString& Encoding ) 89 throw(RuntimeException); 90 91 // Methods XOutputStream 92 virtual void SAL_CALL writeBytes( const Sequence< sal_Int8 >& aData ) 93 throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException); 94 virtual void SAL_CALL flush( ) 95 throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException); 96 virtual void SAL_CALL closeOutput( ) 97 throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException); 98 99 // Methods XActiveDataSource 100 virtual void SAL_CALL setOutputStream( const Reference< XOutputStream >& aStream ) 101 throw(RuntimeException); 102 virtual Reference< XOutputStream > SAL_CALL getOutputStream( ) 103 throw(RuntimeException); 104 105 // Methods XServiceInfo 106 virtual OUString SAL_CALL getImplementationName() throw(); 107 virtual Sequence< OUString > SAL_CALL getSupportedServiceNames(void) throw(); 108 virtual sal_Bool SAL_CALL supportsService(const OUString& ServiceName) throw(); 109 }; 110 111 OTextOutputStream::OTextOutputStream() 112 { 113 mbEncodingInitialized = false; 114 } 115 116 OTextOutputStream::~OTextOutputStream() 117 { 118 if( mbEncodingInitialized ) 119 { 120 rtl_destroyUnicodeToTextContext( mConvUnicode2Text, mContextUnicode2Text ); 121 rtl_destroyUnicodeToTextConverter( mConvUnicode2Text ); 122 } 123 } 124 125 Sequence<sal_Int8> OTextOutputStream::implConvert( const OUString& rSource ) 126 { 127 const sal_Unicode *puSource = rSource.getStr(); 128 sal_Int32 nSourceSize = rSource.getLength(); 129 130 sal_Size nTargetCount = 0; 131 sal_Size nSourceCount = 0; 132 133 sal_uInt32 uiInfo; 134 sal_Size nSrcCvtChars; 135 136 // take nSourceSize * 3 as preference 137 // this is an upper boundary for converting to utf8, 138 // which most often used as the target. 139 sal_Int32 nSeqSize = nSourceSize * 3; 140 141 Sequence<sal_Int8> seqText( nSeqSize ); 142 sal_Char *pTarget = (sal_Char *) seqText.getArray(); 143 while( sal_True ) 144 { 145 nTargetCount += rtl_convertUnicodeToText( 146 mConvUnicode2Text, 147 mContextUnicode2Text, 148 &( puSource[nSourceCount] ), 149 nSourceSize - nSourceCount , 150 &( pTarget[nTargetCount] ), 151 nSeqSize - nTargetCount, 152 RTL_UNICODETOTEXT_FLAGS_UNDEFINED_DEFAULT | 153 RTL_UNICODETOTEXT_FLAGS_INVALID_DEFAULT , 154 &uiInfo, 155 &nSrcCvtChars); 156 nSourceCount += nSrcCvtChars; 157 158 if( uiInfo & RTL_UNICODETOTEXT_INFO_DESTBUFFERTOSMALL ) 159 { 160 nSeqSize *= 2; 161 seqText.realloc( nSeqSize ); // double array size 162 pTarget = (sal_Char*) seqText.getArray(); 163 continue; 164 } 165 break; 166 } 167 168 // reduce the size of the buffer (fast, no copy necessary) 169 seqText.realloc( nTargetCount ); 170 return seqText; 171 } 172 173 174 //=========================================================================== 175 // XTextOutputStream 176 177 void OTextOutputStream::writeString( const OUString& aString ) 178 throw(IOException, RuntimeException) 179 { 180 checkOutputStream(); 181 if( !mbEncodingInitialized ) 182 { 183 OUString aUtf8Str( RTL_CONSTASCII_USTRINGPARAM("utf8") ); 184 setEncoding( aUtf8Str ); 185 } 186 if( !mbEncodingInitialized ) 187 return; 188 189 Sequence<sal_Int8> aByteSeq = implConvert( aString ); 190 mxStream->writeBytes( aByteSeq ); 191 } 192 193 void OTextOutputStream::setEncoding( const OUString& Encoding ) 194 throw(RuntimeException) 195 { 196 OString aOEncodingStr = OUStringToOString( Encoding, RTL_TEXTENCODING_ASCII_US ); 197 rtl_TextEncoding encoding = rtl_getTextEncodingFromMimeCharset( aOEncodingStr.getStr() ); 198 if( RTL_TEXTENCODING_DONTKNOW == encoding ) 199 return; 200 201 mbEncodingInitialized = true; 202 mConvUnicode2Text = rtl_createUnicodeToTextConverter( encoding ); 203 mContextUnicode2Text = rtl_createUnicodeToTextContext( mConvUnicode2Text ); 204 mEncoding = Encoding; 205 } 206 207 //=========================================================================== 208 // XOutputStream 209 void OTextOutputStream::writeBytes( const Sequence< sal_Int8 >& aData ) 210 throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException) 211 { 212 checkOutputStream(); 213 mxStream->writeBytes( aData ); 214 } 215 216 void OTextOutputStream::flush( ) 217 throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException) 218 { 219 checkOutputStream(); 220 mxStream->flush(); 221 } 222 223 void OTextOutputStream::closeOutput( ) 224 throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException) 225 { 226 checkOutputStream(); 227 mxStream->closeOutput(); 228 } 229 230 231 void OTextOutputStream::checkOutputStream() 232 throw(IOException) 233 { 234 if (! mxStream.is() ) 235 throw IOException( 236 OUString(RTL_CONSTASCII_USTRINGPARAM("output stream is not initialized, you have to use setOutputStream first")), 237 Reference<XInterface>()); 238 } 239 240 241 //=========================================================================== 242 // XActiveDataSource 243 244 void OTextOutputStream::setOutputStream( const Reference< XOutputStream >& aStream ) 245 throw(RuntimeException) 246 { 247 mxStream = aStream; 248 } 249 250 Reference< XOutputStream > OTextOutputStream::getOutputStream() 251 throw(RuntimeException) 252 { 253 return mxStream; 254 } 255 256 257 Reference< XInterface > SAL_CALL TextOutputStream_CreateInstance( const Reference< XComponentContext > &) 258 { 259 return Reference < XInterface >( ( OWeakObject * ) new OTextOutputStream() ); 260 } 261 262 OUString TextOutputStream_getImplementationName() SAL_THROW( () ) 263 { 264 return OUString( RTL_CONSTASCII_USTRINGPARAM( IMPLEMENTATION_NAME ) ); 265 } 266 267 268 Sequence< OUString > TextOutputStream_getSupportedServiceNames() 269 { 270 static Sequence < OUString > *pNames = 0; 271 if( ! pNames ) 272 { 273 MutexGuard guard( Mutex::getGlobalMutex() ); 274 if( !pNames ) 275 { 276 static Sequence< OUString > seqNames(1); 277 seqNames.getArray()[0] = OUString( RTL_CONSTASCII_USTRINGPARAM( SERVICE_NAME ) ); 278 pNames = &seqNames; 279 } 280 } 281 return *pNames; 282 } 283 284 OUString OTextOutputStream::getImplementationName() throw() 285 { 286 return TextOutputStream_getImplementationName(); 287 } 288 289 sal_Bool OTextOutputStream::supportsService(const OUString& ServiceName) throw() 290 { 291 Sequence< OUString > aSNL = getSupportedServiceNames(); 292 const OUString * pArray = aSNL.getConstArray(); 293 294 for( sal_Int32 i = 0; i < aSNL.getLength(); i++ ) 295 if( pArray[i] == ServiceName ) 296 return sal_True; 297 298 return sal_False; 299 } 300 301 Sequence< OUString > OTextOutputStream::getSupportedServiceNames(void) throw() 302 { 303 return TextOutputStream_getSupportedServiceNames(); 304 } 305 306 307 } 308 309 using namespace io_TextOutputStream; 310 311 static struct ImplementationEntry g_entries[] = 312 { 313 { 314 TextOutputStream_CreateInstance, TextOutputStream_getImplementationName , 315 TextOutputStream_getSupportedServiceNames, createSingleComponentFactory , 316 &g_moduleCount.modCnt , 0 317 }, 318 { 0, 0, 0, 0, 0, 0 } 319 }; 320 321 extern "C" 322 { 323 IO_DLLPUBLIC sal_Bool SAL_CALL component_canUnload( TimeValue *pTime ) 324 { 325 return g_moduleCount.canUnload( &g_moduleCount , pTime ); 326 } 327 328 //================================================================================================== 329 IO_DLLPUBLIC void SAL_CALL component_getImplementationEnvironment( 330 const sal_Char ** ppEnvTypeName, uno_Environment ** ) 331 { 332 *ppEnvTypeName = CPPU_CURRENT_LANGUAGE_BINDING_NAME; 333 } 334 //================================================================================================== 335 IO_DLLPUBLIC void * SAL_CALL component_getFactory( 336 const sal_Char * pImplName, void * pServiceManager, void * pRegistryKey ) 337 { 338 return component_getFactoryHelper( pImplName, pServiceManager, pRegistryKey , g_entries ); 339 } 340 } 341 342 343