Line data Source code
1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 :
20 : #include <cppuhelper/factory.hxx>
21 : #include <cppuhelper/supportsservice.hxx>
22 : #include <cppuhelper/typeprovider.hxx>
23 : #include <osl/file.hxx>
24 : #include <unotools/configmgr.hxx>
25 : #include <unotools/tempfile.hxx>
26 : #include "XTempFile.hxx"
27 :
28 9979 : OTempFileService::OTempFileService(css::uno::Reference< css::uno::XComponentContext > const & context)
29 : : ::cppu::PropertySetMixin< css::io::XTempFile >(
30 : context
31 : , static_cast< Implements >( IMPLEMENTS_PROPERTY_SET | IMPLEMENTS_FAST_PROPERTY_SET | IMPLEMENTS_PROPERTY_ACCESS )
32 : , com::sun::star::uno::Sequence< OUString >() )
33 : , mpStream( NULL )
34 : , mbRemoveFile( true )
35 : , mbInClosed( false )
36 : , mbOutClosed( false )
37 : , mnCachedPos( 0 )
38 9979 : , mbHasCachedPos( false )
39 :
40 : {
41 9979 : mpTempFile = new ::utl::TempFile;
42 9979 : mpTempFile->EnableKillingFile ( true );
43 9979 : }
44 :
45 29901 : OTempFileService::~OTempFileService ()
46 : {
47 9967 : if ( mpTempFile )
48 9240 : delete mpTempFile;
49 19934 : }
50 :
51 : // XInterface
52 :
53 58745 : css::uno::Any SAL_CALL OTempFileService::queryInterface( css::uno::Type const & aType )
54 : throw ( css::uno::RuntimeException, std::exception )
55 : {
56 58745 : css::uno::Any aResult( OTempFileBase::queryInterface( aType ) );
57 58745 : if (!aResult.hasValue())
58 1426 : aResult = cppu::PropertySetMixin< css::io::XTempFile >::queryInterface( aType );
59 58745 : return aResult;
60 : };
61 210426 : void SAL_CALL OTempFileService::acquire( )
62 : throw ()
63 : {
64 210426 : OTempFileBase::acquire();
65 210426 : }
66 210366 : void SAL_CALL OTempFileService::release( )
67 : throw ()
68 : {
69 210366 : OTempFileBase::release();
70 210366 : }
71 :
72 : // XTypeProvider
73 :
74 0 : css::uno::Sequence< css::uno::Type > SAL_CALL OTempFileService::getTypes( )
75 : throw ( css::uno::RuntimeException, std::exception )
76 : {
77 : static ::cppu::OTypeCollection* pTypeCollection = NULL;
78 0 : if ( pTypeCollection == NULL )
79 : {
80 0 : ::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex() );
81 :
82 0 : if ( pTypeCollection == NULL )
83 : {
84 : static ::cppu::OTypeCollection aTypeCollection(
85 0 : cppu::UnoType<css::beans::XPropertySet>::get()
86 0 : ,OTempFileBase::getTypes() );
87 0 : pTypeCollection = &aTypeCollection;
88 0 : }
89 : }
90 0 : return pTypeCollection->getTypes();
91 : };
92 0 : css::uno::Sequence< sal_Int8 > SAL_CALL OTempFileService::getImplementationId( )
93 : throw ( css::uno::RuntimeException, std::exception )
94 : {
95 0 : return OTempFileBase::getImplementationId();
96 : }
97 :
98 : // XTempFile
99 :
100 0 : sal_Bool SAL_CALL OTempFileService::getRemoveFile()
101 : throw ( css::uno::RuntimeException, std::exception )
102 : {
103 0 : ::osl::MutexGuard aGuard( maMutex );
104 :
105 0 : if ( !mpTempFile )
106 : {
107 : // the stream is already disconnected
108 0 : throw css::uno::RuntimeException();
109 : }
110 :
111 0 : return mbRemoveFile;
112 : };
113 858 : void SAL_CALL OTempFileService::setRemoveFile( sal_Bool _removefile )
114 : throw ( css::uno::RuntimeException, std::exception )
115 : {
116 858 : ::osl::MutexGuard aGuard( maMutex );
117 :
118 858 : if ( !mpTempFile )
119 : {
120 : // the stream is already disconnected
121 0 : throw css::uno::RuntimeException();
122 : }
123 :
124 858 : mbRemoveFile = _removefile;
125 858 : mpTempFile->EnableKillingFile( mbRemoveFile );
126 858 : };
127 853 : OUString SAL_CALL OTempFileService::getUri()
128 : throw ( css::uno::RuntimeException, std::exception )
129 : {
130 853 : ::osl::MutexGuard aGuard( maMutex );
131 :
132 853 : if ( !mpTempFile )
133 : {
134 0 : throw css::uno::RuntimeException();
135 : }
136 :
137 853 : return OUString( mpTempFile->GetURL() );
138 :
139 : };
140 1 : OUString SAL_CALL OTempFileService::getResourceName()
141 : throw ( css::uno::RuntimeException, std::exception )
142 : {
143 1 : ::osl::MutexGuard aGuard( maMutex );
144 :
145 1 : if ( !mpTempFile )
146 : {
147 0 : throw css::uno::RuntimeException();
148 : }
149 :
150 1 : return OUString( mpTempFile->GetFileName() );
151 : };
152 :
153 : // XInputStream
154 :
155 115610 : sal_Int32 SAL_CALL OTempFileService::readBytes( css::uno::Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead )
156 : throw (css::io::NotConnectedException, css::io::BufferSizeExceededException, css::io::IOException, css::uno::RuntimeException, std::exception )
157 : {
158 115610 : ::osl::MutexGuard aGuard( maMutex );
159 115610 : if ( mbInClosed )
160 0 : throw css::io::NotConnectedException ( OUString(), const_cast < css::uno::XWeak * > ( static_cast < const css::uno::XWeak * > (this ) ) );
161 :
162 115610 : checkConnected();
163 115610 : if (nBytesToRead < 0)
164 0 : throw css::io::BufferSizeExceededException( OUString(), static_cast< css::uno::XWeak * >(this));
165 :
166 115610 : aData.realloc(nBytesToRead);
167 :
168 115610 : sal_uInt32 nRead = mpStream->Read(static_cast < void* > ( aData.getArray() ), nBytesToRead);
169 115610 : checkError();
170 :
171 115610 : if (nRead < static_cast < sal_uInt32 > ( nBytesToRead ) )
172 4306 : aData.realloc( nRead );
173 :
174 115610 : if ( sal::static_int_cast<sal_uInt32>(nBytesToRead) > nRead )
175 : {
176 : // usually that means that the stream was read till the end
177 : // TODO/LATER: it is better to get rid of this optimization by avoiding using of multiple temporary files ( there should be only one temporary file? )
178 4306 : mnCachedPos = mpStream->Tell();
179 4306 : mbHasCachedPos = true;
180 :
181 4306 : mpStream = NULL;
182 4306 : if ( mpTempFile )
183 4306 : mpTempFile->CloseStream();
184 : }
185 :
186 115610 : return nRead;
187 : }
188 89 : sal_Int32 SAL_CALL OTempFileService::readSomeBytes( css::uno::Sequence< sal_Int8 >& aData, sal_Int32 nMaxBytesToRead )
189 : throw ( css::io::NotConnectedException, css::io::BufferSizeExceededException, css::io::IOException, css::uno::RuntimeException, std::exception )
190 : {
191 89 : ::osl::MutexGuard aGuard( maMutex );
192 89 : if ( mbInClosed )
193 0 : throw css::io::NotConnectedException ( OUString(), const_cast < css::uno::XWeak * > ( static_cast < const css::uno::XWeak * > (this ) ) );
194 :
195 89 : checkConnected();
196 89 : checkError();
197 :
198 89 : if (nMaxBytesToRead < 0)
199 0 : throw css::io::BufferSizeExceededException( OUString(), static_cast < css::uno::XWeak * >( this ) );
200 :
201 89 : if (mpStream->IsEof())
202 : {
203 0 : aData.realloc(0);
204 0 : return 0;
205 : }
206 : else
207 89 : return readBytes(aData, nMaxBytesToRead);
208 : }
209 216 : void SAL_CALL OTempFileService::skipBytes( sal_Int32 nBytesToSkip )
210 : throw ( css::io::NotConnectedException, css::io::BufferSizeExceededException, css::io::IOException, css::uno::RuntimeException, std::exception )
211 : {
212 216 : ::osl::MutexGuard aGuard( maMutex );
213 216 : if ( mbInClosed )
214 0 : throw css::io::NotConnectedException ( OUString(), const_cast < css::uno::XWeak * > ( static_cast < const css::uno::XWeak * > (this ) ) );
215 :
216 216 : checkConnected();
217 216 : checkError();
218 216 : mpStream->SeekRel(nBytesToSkip);
219 216 : checkError();
220 216 : }
221 0 : sal_Int32 SAL_CALL OTempFileService::available( )
222 : throw ( css::io::NotConnectedException, css::io::IOException, css::uno::RuntimeException, std::exception )
223 : {
224 0 : ::osl::MutexGuard aGuard( maMutex );
225 0 : if ( mbInClosed )
226 0 : throw css::io::NotConnectedException ( OUString(), const_cast < css::uno::XWeak * > ( static_cast < const css::uno::XWeak * > (this ) ) );
227 :
228 0 : checkConnected();
229 :
230 : sal_uInt32 const nAvailable =
231 0 : static_cast<sal_uInt32>(mpStream->remainingSize());
232 0 : checkError();
233 :
234 0 : return nAvailable;
235 : }
236 727 : void SAL_CALL OTempFileService::closeInput( )
237 : throw ( css::io::NotConnectedException, css::io::IOException, css::uno::RuntimeException, std::exception )
238 : {
239 727 : ::osl::MutexGuard aGuard( maMutex );
240 727 : if ( mbInClosed )
241 0 : throw css::io::NotConnectedException ( OUString(), const_cast < css::uno::XWeak * > ( static_cast < const css::uno::XWeak * > (this ) ) );
242 :
243 727 : mbInClosed = true;
244 :
245 727 : if ( mbOutClosed )
246 : {
247 : // stream will be deleted by TempFile implementation
248 722 : mpStream = NULL;
249 :
250 722 : if ( mpTempFile )
251 : {
252 722 : delete mpTempFile;
253 722 : mpTempFile = NULL;
254 : }
255 727 : }
256 727 : }
257 :
258 : // XOutputStream
259 :
260 25222 : void SAL_CALL OTempFileService::writeBytes( const css::uno::Sequence< sal_Int8 >& aData )
261 : throw ( css::io::NotConnectedException, css::io::BufferSizeExceededException, css::io::IOException, css::uno::RuntimeException, std::exception )
262 : {
263 25222 : ::osl::MutexGuard aGuard( maMutex );
264 25222 : if ( mbOutClosed )
265 0 : throw css::io::NotConnectedException ( OUString(), const_cast < css::uno::XWeak * > ( static_cast < const css::uno::XWeak * > (this ) ) );
266 :
267 25222 : checkConnected();
268 25222 : sal_uInt32 nWritten = mpStream->Write(aData.getConstArray(),aData.getLength());
269 25222 : checkError();
270 25222 : if ( nWritten != (sal_uInt32)aData.getLength())
271 0 : throw css::io::BufferSizeExceededException( OUString(),static_cast < css::uno::XWeak * > ( this ) );
272 25222 : }
273 2729 : void SAL_CALL OTempFileService::flush( )
274 : throw ( css::io::NotConnectedException, css::io::BufferSizeExceededException, css::io::IOException, css::uno::RuntimeException, std::exception )
275 : {
276 2729 : ::osl::MutexGuard aGuard( maMutex );
277 2729 : if ( mbOutClosed )
278 0 : throw css::io::NotConnectedException ( OUString(), const_cast < css::uno::XWeak * > ( static_cast < const css::uno::XWeak * > (this ) ) );
279 :
280 2729 : checkConnected();
281 2728 : mpStream->Flush();
282 2729 : checkError();
283 2728 : }
284 2284 : void SAL_CALL OTempFileService::closeOutput( )
285 : throw ( css::io::NotConnectedException, css::io::BufferSizeExceededException, css::io::IOException, css::uno::RuntimeException, std::exception )
286 : {
287 2284 : ::osl::MutexGuard aGuard( maMutex );
288 2284 : if ( mbOutClosed )
289 0 : throw css::io::NotConnectedException ( OUString(), const_cast < css::uno::XWeak * > ( static_cast < const css::uno::XWeak * > (this ) ) );
290 :
291 2284 : mbOutClosed = true;
292 :
293 : // TODO/LATER: it is better to get rid of this optimization by avoiding using of multiple temporary files ( there should be only one temporary file? )
294 2284 : if ( mpStream )
295 : {
296 2278 : mnCachedPos = mpStream->Tell();
297 2278 : mbHasCachedPos = true;
298 :
299 2278 : mpStream = NULL;
300 2278 : if ( mpTempFile )
301 2278 : mpTempFile->CloseStream();
302 : }
303 :
304 2284 : if ( mbInClosed )
305 : {
306 : // stream will be deleted by TempFile implementation
307 5 : mpStream = NULL;
308 :
309 5 : if ( mpTempFile )
310 : {
311 5 : delete mpTempFile;
312 5 : mpTempFile = NULL;
313 : }
314 2284 : }
315 2284 : }
316 :
317 241862 : void OTempFileService::checkError () const
318 : {
319 241862 : if (!mpStream || mpStream->SvStream::GetError () != ERRCODE_NONE )
320 0 : throw css::io::NotConnectedException ( OUString(), const_cast < css::uno::XWeak * > ( static_cast < const css::uno::XWeak * > (this ) ) );
321 241862 : }
322 206175 : void OTempFileService::checkConnected ()
323 : {
324 206175 : if (!mpStream && mpTempFile)
325 : {
326 13470 : mpStream = mpTempFile->GetStream( STREAM_STD_READWRITE );
327 13470 : if ( mpStream && mbHasCachedPos )
328 : {
329 4343 : mpStream->Seek( sal::static_int_cast<sal_Size>(mnCachedPos) );
330 4343 : if ( mpStream->SvStream::GetError () == ERRCODE_NONE )
331 : {
332 4342 : mbHasCachedPos = false;
333 4342 : mnCachedPos = 0;
334 : }
335 : else
336 : {
337 1 : mpStream = NULL;
338 1 : mpTempFile->CloseStream();
339 : }
340 : }
341 : }
342 :
343 206175 : if (!mpStream)
344 1 : throw css::io::NotConnectedException ( OUString(), const_cast < css::uno::XWeak * > ( static_cast < const css::uno::XWeak * > (this ) ) );
345 206174 : }
346 :
347 : // XSeekable
348 :
349 25194 : void SAL_CALL OTempFileService::seek( sal_Int64 nLocation )
350 : throw ( css::lang::IllegalArgumentException, css::io::IOException, css::uno::RuntimeException, std::exception )
351 : {
352 25194 : ::osl::MutexGuard aGuard( maMutex );
353 25194 : checkConnected();
354 25194 : if ( nLocation < 0 || nLocation > getLength() )
355 0 : throw css::lang::IllegalArgumentException();
356 :
357 25194 : mpStream->Seek((sal_uInt32) nLocation );
358 25194 : checkError();
359 25194 : }
360 1643 : sal_Int64 SAL_CALL OTempFileService::getPosition( )
361 : throw ( css::io::IOException, css::uno::RuntimeException, std::exception )
362 : {
363 1643 : ::osl::MutexGuard aGuard( maMutex );
364 1643 : checkConnected();
365 :
366 1643 : sal_uInt32 nPos = mpStream->Tell();
367 1643 : checkError();
368 1643 : return (sal_Int64)nPos;
369 : }
370 35472 : sal_Int64 SAL_CALL OTempFileService::getLength( )
371 : throw ( css::io::IOException, css::uno::RuntimeException, std::exception )
372 : {
373 35472 : ::osl::MutexGuard aGuard( maMutex );
374 35472 : checkConnected();
375 :
376 35472 : sal_uInt32 nCurrentPos = mpStream->Tell();
377 35472 : checkError();
378 :
379 35472 : mpStream->Seek(STREAM_SEEK_TO_END);
380 35472 : sal_uInt32 nEndPos = mpStream->Tell();
381 35472 : mpStream->Seek(nCurrentPos);
382 :
383 35472 : checkError();
384 :
385 35472 : return (sal_Int64)nEndPos;
386 : }
387 :
388 : // XStream
389 :
390 7959 : css::uno::Reference< css::io::XInputStream > SAL_CALL OTempFileService::getInputStream()
391 : throw ( css::uno::RuntimeException, std::exception )
392 : {
393 7959 : return css::uno::Reference< css::io::XInputStream >( *this, css::uno::UNO_QUERY );
394 : }
395 :
396 8183 : css::uno::Reference< css::io::XOutputStream > SAL_CALL OTempFileService::getOutputStream()
397 : throw ( css::uno::RuntimeException, std::exception )
398 : {
399 8183 : return css::uno::Reference< css::io::XOutputStream >( *this, css::uno::UNO_QUERY );
400 : }
401 :
402 : // XTruncate
403 :
404 0 : void SAL_CALL OTempFileService::truncate()
405 : throw ( css::io::IOException, css::uno::RuntimeException, std::exception )
406 : {
407 0 : ::osl::MutexGuard aGuard( maMutex );
408 0 : checkConnected();
409 : // SetStreamSize() call does not change the position
410 0 : mpStream->Seek( 0 );
411 0 : mpStream->SetStreamSize( 0 );
412 0 : checkError();
413 0 : }
414 :
415 : // XServiceInfo
416 :
417 1 : OUString SAL_CALL OTempFileService::getImplementationName()
418 : throw ( css::uno::RuntimeException, std::exception )
419 : {
420 1 : return getImplementationName_Static();
421 : }
422 :
423 0 : sal_Bool SAL_CALL OTempFileService::supportsService( OUString const & rServiceName )
424 : throw ( css::uno::RuntimeException, std::exception )
425 : {
426 0 : return cppu::supportsService(this, rServiceName);
427 : }
428 :
429 1 : css::uno::Sequence < OUString > SAL_CALL OTempFileService::getSupportedServiceNames()
430 : throw ( css::uno::RuntimeException, std::exception )
431 : {
432 1 : return getSupportedServiceNames_Static();
433 : }
434 :
435 211 : OUString OTempFileService::getImplementationName_Static ()
436 : {
437 211 : return OUString ( "com.sun.star.io.comp.TempFile" );
438 : }
439 106 : css::uno::Sequence < OUString > OTempFileService::getSupportedServiceNames_Static()
440 : {
441 106 : css::uno::Sequence < OUString > aNames ( 1 );
442 106 : aNames[0] = "com.sun.star.io.TempFile";
443 106 : return aNames;
444 : }
445 9979 : css::uno::Reference < css::uno::XInterface >SAL_CALL XTempFile_createInstance(
446 : css::uno::Reference< css::uno::XComponentContext > const & context)
447 : {
448 9979 : return static_cast< ::cppu::OWeakObject * >( new OTempFileService(context) );
449 : }
450 :
451 105 : css::uno::Reference < css::lang::XSingleComponentFactory > OTempFileService::createServiceFactory_Static()
452 : {
453 105 : return ::cppu::createSingleComponentFactory( XTempFile_createInstance, getImplementationName_Static(), getSupportedServiceNames_Static() );
454 : }
455 :
456 : /**
457 : * This function is called to get service factories for an implementation.
458 : * @param pImplName name of implementation
459 : * @param pServiceManager generic uno interface providing a service manager to instantiate components
460 : * @param pRegistryKey registry data key to read and write component persistent data
461 : * @return a component factory (generic uno interface)
462 : */
463 105 : extern "C" SAL_DLLPUBLIC_EXPORT void * SAL_CALL utl_component_getFactory(
464 : const sal_Char * pImplName, void * pServiceManager,
465 : SAL_UNUSED_PARAMETER void * /*pRegistryKey*/ )
466 : {
467 105 : void * pRet = 0;
468 : css::uno::Reference< css::lang::XMultiServiceFactory > xSMgr(
469 105 : static_cast< css::lang::XMultiServiceFactory * >( pServiceManager ) );
470 210 : css::uno::Reference< css::lang::XSingleComponentFactory > xFactory;
471 :
472 105 : if (OTempFileService::getImplementationName_Static().equalsAscii( pImplName ) )
473 105 : xFactory = OTempFileService::createServiceFactory_Static();
474 :
475 105 : if ( xFactory.is() )
476 : {
477 105 : xFactory->acquire();
478 105 : pRet = xFactory.get();
479 : }
480 210 : return pRet;
481 : }
482 :
483 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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