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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 :
21 : #include <osl/diagnose.h>
22 :
23 : #include <uno/mapping.hxx>
24 :
25 : #include <cppuhelper/factory.hxx>
26 : #include <cppuhelper/implbase3.hxx>
27 : #include <cppuhelper/implementationentry.hxx>
28 :
29 : #include <rtl/textenc.h>
30 : #include <rtl/tencinfo.h>
31 : #include <rtl/unload.h>
32 :
33 : #include <com/sun/star/io/XTextOutputStream.hpp>
34 : #include <com/sun/star/io/XActiveDataSource.hpp>
35 : #include <com/sun/star/lang/XServiceInfo.hpp>
36 :
37 :
38 : #define IMPLEMENTATION_NAME "com.sun.star.comp.io.TextOutputStream"
39 : #define SERVICE_NAME "com.sun.star.io.TextOutputStream"
40 :
41 : using namespace ::osl;
42 : using namespace ::rtl;
43 : using namespace ::cppu;
44 : using namespace ::com::sun::star::uno;
45 : using namespace ::com::sun::star::lang;
46 : using namespace ::com::sun::star::io;
47 : using namespace ::com::sun::star::registry;
48 :
49 : namespace io_TextOutputStream
50 : {
51 : rtl_StandardModuleCount g_moduleCount = MODULE_COUNT_INIT;
52 : //===========================================================================
53 : // Implementation XTextOutputStream
54 :
55 : typedef WeakImplHelper3< XTextOutputStream, XActiveDataSource, XServiceInfo > TextOutputStreamHelper;
56 :
57 : class OTextOutputStream : public TextOutputStreamHelper
58 : {
59 : Reference< XOutputStream > mxStream;
60 :
61 : // Encoding
62 : OUString mEncoding;
63 : sal_Bool mbEncodingInitialized;
64 : rtl_UnicodeToTextConverter mConvUnicode2Text;
65 : rtl_UnicodeToTextContext mContextUnicode2Text;
66 :
67 : Sequence<sal_Int8> implConvert( const OUString& rSource );
68 :
69 : public:
70 : OTextOutputStream();
71 : ~OTextOutputStream();
72 :
73 : // Methods XTextOutputStream
74 : virtual void SAL_CALL writeString( const OUString& aString )
75 : throw(IOException, RuntimeException);
76 : virtual void SAL_CALL setEncoding( const OUString& Encoding )
77 : throw(RuntimeException);
78 :
79 : // Methods XOutputStream
80 : virtual void SAL_CALL writeBytes( const Sequence< sal_Int8 >& aData )
81 : throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException);
82 : virtual void SAL_CALL flush( )
83 : throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException);
84 : virtual void SAL_CALL closeOutput( )
85 : throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException);
86 :
87 : // Methods XActiveDataSource
88 : virtual void SAL_CALL setOutputStream( const Reference< XOutputStream >& aStream )
89 : throw(RuntimeException);
90 : virtual Reference< XOutputStream > SAL_CALL getOutputStream( )
91 : throw(RuntimeException);
92 :
93 : // Methods XServiceInfo
94 : virtual OUString SAL_CALL getImplementationName() throw();
95 : virtual Sequence< OUString > SAL_CALL getSupportedServiceNames(void) throw();
96 : virtual sal_Bool SAL_CALL supportsService(const OUString& ServiceName) throw();
97 : };
98 :
99 0 : OTextOutputStream::OTextOutputStream()
100 : {
101 0 : mbEncodingInitialized = false;
102 0 : }
103 :
104 0 : OTextOutputStream::~OTextOutputStream()
105 : {
106 0 : if( mbEncodingInitialized )
107 : {
108 0 : rtl_destroyUnicodeToTextContext( mConvUnicode2Text, mContextUnicode2Text );
109 0 : rtl_destroyUnicodeToTextConverter( mConvUnicode2Text );
110 : }
111 0 : }
112 :
113 0 : Sequence<sal_Int8> OTextOutputStream::implConvert( const OUString& rSource )
114 : {
115 0 : const sal_Unicode *puSource = rSource.getStr();
116 0 : sal_Int32 nSourceSize = rSource.getLength();
117 :
118 0 : sal_Size nTargetCount = 0;
119 0 : sal_Size nSourceCount = 0;
120 :
121 : sal_uInt32 uiInfo;
122 : sal_Size nSrcCvtChars;
123 :
124 : // take nSourceSize * 3 as preference
125 : // this is an upper boundary for converting to utf8,
126 : // which most often used as the target.
127 0 : sal_Int32 nSeqSize = nSourceSize * 3;
128 :
129 0 : Sequence<sal_Int8> seqText( nSeqSize );
130 0 : sal_Char *pTarget = (sal_Char *) seqText.getArray();
131 0 : while( sal_True )
132 : {
133 : nTargetCount += rtl_convertUnicodeToText(
134 : mConvUnicode2Text,
135 : mContextUnicode2Text,
136 : &( puSource[nSourceCount] ),
137 : nSourceSize - nSourceCount ,
138 : &( pTarget[nTargetCount] ),
139 : nSeqSize - nTargetCount,
140 : RTL_UNICODETOTEXT_FLAGS_UNDEFINED_DEFAULT |
141 : RTL_UNICODETOTEXT_FLAGS_INVALID_DEFAULT ,
142 : &uiInfo,
143 0 : &nSrcCvtChars);
144 0 : nSourceCount += nSrcCvtChars;
145 :
146 0 : if( uiInfo & RTL_UNICODETOTEXT_INFO_DESTBUFFERTOSMALL )
147 : {
148 0 : nSeqSize *= 2;
149 0 : seqText.realloc( nSeqSize ); // double array size
150 0 : pTarget = (sal_Char*) seqText.getArray();
151 0 : continue;
152 : }
153 0 : break;
154 : }
155 :
156 : // reduce the size of the buffer (fast, no copy necessary)
157 0 : seqText.realloc( nTargetCount );
158 0 : return seqText;
159 : }
160 :
161 :
162 : //===========================================================================
163 : // XTextOutputStream
164 :
165 0 : void OTextOutputStream::writeString( const OUString& aString )
166 : throw(IOException, RuntimeException)
167 : {
168 0 : if( !mbEncodingInitialized )
169 : {
170 0 : OUString aUtf8Str("utf8");
171 0 : setEncoding( aUtf8Str );
172 : }
173 0 : if( !mbEncodingInitialized )
174 0 : return;
175 :
176 0 : Sequence<sal_Int8> aByteSeq = implConvert( aString );
177 0 : mxStream->writeBytes( aByteSeq );
178 : }
179 :
180 0 : void OTextOutputStream::setEncoding( const OUString& Encoding )
181 : throw(RuntimeException)
182 : {
183 0 : OString aOEncodingStr = OUStringToOString( Encoding, RTL_TEXTENCODING_ASCII_US );
184 0 : rtl_TextEncoding encoding = rtl_getTextEncodingFromMimeCharset( aOEncodingStr.getStr() );
185 0 : if( RTL_TEXTENCODING_DONTKNOW == encoding )
186 0 : return;
187 :
188 0 : mbEncodingInitialized = true;
189 0 : mConvUnicode2Text = rtl_createUnicodeToTextConverter( encoding );
190 0 : mContextUnicode2Text = rtl_createUnicodeToTextContext( mConvUnicode2Text );
191 0 : mEncoding = Encoding;
192 : }
193 :
194 : //===========================================================================
195 : // XOutputStream
196 0 : void OTextOutputStream::writeBytes( const Sequence< sal_Int8 >& aData )
197 : throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException)
198 : {
199 0 : mxStream->writeBytes( aData );
200 0 : }
201 :
202 0 : void OTextOutputStream::flush( )
203 : throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException)
204 : {
205 0 : mxStream->flush();
206 0 : }
207 :
208 0 : void OTextOutputStream::closeOutput( )
209 : throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException)
210 : {
211 0 : mxStream->closeOutput();
212 0 : }
213 :
214 :
215 : //===========================================================================
216 : // XActiveDataSource
217 :
218 0 : void OTextOutputStream::setOutputStream( const Reference< XOutputStream >& aStream )
219 : throw(RuntimeException)
220 : {
221 0 : mxStream = aStream;
222 0 : }
223 :
224 0 : Reference< XOutputStream > OTextOutputStream::getOutputStream()
225 : throw(RuntimeException)
226 : {
227 0 : return mxStream;
228 : }
229 :
230 :
231 0 : Reference< XInterface > SAL_CALL TextOutputStream_CreateInstance(
232 : SAL_UNUSED_PARAMETER const Reference< XComponentContext > &)
233 : {
234 0 : return Reference < XInterface >( ( OWeakObject * ) new OTextOutputStream() );
235 : }
236 :
237 0 : OUString TextOutputStream_getImplementationName() SAL_THROW( () )
238 : {
239 0 : return OUString( IMPLEMENTATION_NAME );
240 : }
241 :
242 :
243 0 : Sequence< OUString > TextOutputStream_getSupportedServiceNames()
244 : {
245 0 : Sequence< OUString > seqNames(1);
246 0 : seqNames.getArray()[0] = SERVICE_NAME;
247 0 : return seqNames;
248 : }
249 :
250 0 : OUString OTextOutputStream::getImplementationName() throw()
251 : {
252 0 : return TextOutputStream_getImplementationName();
253 : }
254 :
255 0 : sal_Bool OTextOutputStream::supportsService(const OUString& ServiceName) throw()
256 : {
257 0 : Sequence< OUString > aSNL = getSupportedServiceNames();
258 0 : const OUString * pArray = aSNL.getConstArray();
259 :
260 0 : for( sal_Int32 i = 0; i < aSNL.getLength(); i++ )
261 0 : if( pArray[i] == ServiceName )
262 0 : return sal_True;
263 :
264 0 : return sal_False;
265 : }
266 :
267 0 : Sequence< OUString > OTextOutputStream::getSupportedServiceNames(void) throw()
268 : {
269 0 : return TextOutputStream_getSupportedServiceNames();
270 : }
271 :
272 :
273 : }
274 :
275 : using namespace io_TextOutputStream;
276 :
277 : static struct ImplementationEntry g_entries[] =
278 : {
279 : {
280 : TextOutputStream_CreateInstance, TextOutputStream_getImplementationName ,
281 : TextOutputStream_getSupportedServiceNames, createSingleComponentFactory ,
282 : &g_moduleCount.modCnt , 0
283 : },
284 : { 0, 0, 0, 0, 0, 0 }
285 : };
286 :
287 : extern "C"
288 : {
289 0 : SAL_DLLPUBLIC_EXPORT sal_Bool SAL_CALL component_canUnload( TimeValue *pTime )
290 : {
291 0 : return g_moduleCount.canUnload( &g_moduleCount , pTime );
292 : }
293 :
294 : //==================================================================================================
295 0 : SAL_DLLPUBLIC_EXPORT void * SAL_CALL textoutstream_component_getFactory(
296 : const sal_Char * pImplName, void * pServiceManager, void * pRegistryKey )
297 : {
298 0 : return component_getFactoryHelper( pImplName, pServiceManager, pRegistryKey , g_entries );
299 : }
300 : }
301 :
302 :
303 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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