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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/implbase2.hxx>
27 : #include <cppuhelper/implementationentry.hxx>
28 : #include <cppuhelper/supportsservice.hxx>
29 :
30 : #include <rtl/textenc.h>
31 : #include <rtl/tencinfo.h>
32 :
33 : #include <com/sun/star/io/XTextOutputStream2.hpp>
34 : #include <com/sun/star/lang/XServiceInfo.hpp>
35 :
36 : #include "services.hxx"
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 :
52 : // Implementation XTextOutputStream
53 :
54 : typedef WeakImplHelper2< XTextOutputStream2, XServiceInfo > TextOutputStreamHelper;
55 :
56 : class OTextOutputStream : public TextOutputStreamHelper
57 : {
58 : Reference< XOutputStream > mxStream;
59 :
60 : // Encoding
61 : OUString mEncoding;
62 : sal_Bool mbEncodingInitialized;
63 : rtl_UnicodeToTextConverter mConvUnicode2Text;
64 : rtl_UnicodeToTextContext mContextUnicode2Text;
65 :
66 : Sequence<sal_Int8> implConvert( const OUString& rSource );
67 : void checkOutputStream() throw(IOException);
68 :
69 : public:
70 : OTextOutputStream();
71 : virtual ~OTextOutputStream();
72 :
73 : // Methods XTextOutputStream
74 : virtual void SAL_CALL writeString( const OUString& aString )
75 : throw(IOException, RuntimeException, std::exception) SAL_OVERRIDE;
76 : virtual void SAL_CALL setEncoding( const OUString& Encoding )
77 : throw(RuntimeException, std::exception) SAL_OVERRIDE;
78 :
79 : // Methods XOutputStream
80 : virtual void SAL_CALL writeBytes( const Sequence< sal_Int8 >& aData )
81 : throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException, std::exception) SAL_OVERRIDE;
82 : virtual void SAL_CALL flush( )
83 : throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException, std::exception) SAL_OVERRIDE;
84 : virtual void SAL_CALL closeOutput( )
85 : throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException, std::exception) SAL_OVERRIDE;
86 :
87 : // Methods XActiveDataSource
88 : virtual void SAL_CALL setOutputStream( const Reference< XOutputStream >& aStream )
89 : throw(RuntimeException, std::exception) SAL_OVERRIDE;
90 : virtual Reference< XOutputStream > SAL_CALL getOutputStream( )
91 : throw(RuntimeException, std::exception) SAL_OVERRIDE;
92 :
93 : // Methods XServiceInfo
94 : virtual OUString SAL_CALL getImplementationName() throw(std::exception) SAL_OVERRIDE;
95 : virtual Sequence< OUString > SAL_CALL getSupportedServiceNames(void) throw(std::exception) SAL_OVERRIDE;
96 : virtual sal_Bool SAL_CALL supportsService(const OUString& ServiceName) throw(std::exception) SAL_OVERRIDE;
97 : };
98 :
99 0 : OTextOutputStream::OTextOutputStream()
100 : : mbEncodingInitialized(false)
101 : , mConvUnicode2Text(NULL)
102 0 : , mContextUnicode2Text(NULL)
103 : {
104 0 : }
105 :
106 0 : OTextOutputStream::~OTextOutputStream()
107 : {
108 0 : if( mbEncodingInitialized )
109 : {
110 0 : rtl_destroyUnicodeToTextContext( mConvUnicode2Text, mContextUnicode2Text );
111 0 : rtl_destroyUnicodeToTextConverter( mConvUnicode2Text );
112 : }
113 0 : }
114 :
115 0 : Sequence<sal_Int8> OTextOutputStream::implConvert( const OUString& rSource )
116 : {
117 0 : const sal_Unicode *puSource = rSource.getStr();
118 0 : sal_Int32 nSourceSize = rSource.getLength();
119 :
120 0 : sal_Size nTargetCount = 0;
121 0 : sal_Size nSourceCount = 0;
122 :
123 : sal_uInt32 uiInfo;
124 : sal_Size nSrcCvtChars;
125 :
126 : // take nSourceSize * 3 as preference
127 : // this is an upper boundary for converting to utf8,
128 : // which most often used as the target.
129 0 : sal_Int32 nSeqSize = nSourceSize * 3;
130 :
131 0 : Sequence<sal_Int8> seqText( nSeqSize );
132 0 : sal_Char *pTarget = (sal_Char *) seqText.getArray();
133 : while( true )
134 : {
135 : nTargetCount += rtl_convertUnicodeToText(
136 : mConvUnicode2Text,
137 : mContextUnicode2Text,
138 : &( puSource[nSourceCount] ),
139 : nSourceSize - nSourceCount ,
140 : &( pTarget[nTargetCount] ),
141 : nSeqSize - nTargetCount,
142 : RTL_UNICODETOTEXT_FLAGS_UNDEFINED_DEFAULT |
143 : RTL_UNICODETOTEXT_FLAGS_INVALID_DEFAULT ,
144 : &uiInfo,
145 0 : &nSrcCvtChars);
146 0 : nSourceCount += nSrcCvtChars;
147 :
148 0 : if( uiInfo & RTL_UNICODETOTEXT_INFO_DESTBUFFERTOSMALL )
149 : {
150 0 : nSeqSize *= 2;
151 0 : seqText.realloc( nSeqSize ); // double array size
152 0 : pTarget = (sal_Char*) seqText.getArray();
153 0 : continue;
154 : }
155 0 : break;
156 : }
157 :
158 : // reduce the size of the buffer (fast, no copy necessary)
159 0 : seqText.realloc( nTargetCount );
160 0 : return seqText;
161 : }
162 :
163 :
164 :
165 : // XTextOutputStream
166 :
167 0 : void OTextOutputStream::writeString( const OUString& aString )
168 : throw(IOException, RuntimeException, std::exception)
169 : {
170 0 : checkOutputStream();
171 0 : if( !mbEncodingInitialized )
172 : {
173 0 : OUString aUtf8Str("utf8");
174 0 : setEncoding( aUtf8Str );
175 : }
176 0 : if( !mbEncodingInitialized )
177 0 : return;
178 :
179 0 : Sequence<sal_Int8> aByteSeq = implConvert( aString );
180 0 : mxStream->writeBytes( aByteSeq );
181 : }
182 :
183 0 : void OTextOutputStream::setEncoding( const OUString& Encoding )
184 : throw(RuntimeException, std::exception)
185 : {
186 0 : OString aOEncodingStr = OUStringToOString( Encoding, RTL_TEXTENCODING_ASCII_US );
187 0 : rtl_TextEncoding encoding = rtl_getTextEncodingFromMimeCharset( aOEncodingStr.getStr() );
188 0 : if( RTL_TEXTENCODING_DONTKNOW == encoding )
189 0 : return;
190 :
191 0 : mbEncodingInitialized = true;
192 0 : mConvUnicode2Text = rtl_createUnicodeToTextConverter( encoding );
193 0 : mContextUnicode2Text = rtl_createUnicodeToTextContext( mConvUnicode2Text );
194 0 : mEncoding = Encoding;
195 : }
196 :
197 :
198 : // XOutputStream
199 0 : void OTextOutputStream::writeBytes( const Sequence< sal_Int8 >& aData )
200 : throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException, std::exception)
201 : {
202 0 : checkOutputStream();
203 0 : mxStream->writeBytes( aData );
204 0 : }
205 :
206 0 : void OTextOutputStream::flush( )
207 : throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException, std::exception)
208 : {
209 0 : checkOutputStream();
210 0 : mxStream->flush();
211 0 : }
212 :
213 0 : void OTextOutputStream::closeOutput( )
214 : throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException, std::exception)
215 : {
216 0 : checkOutputStream();
217 0 : mxStream->closeOutput();
218 0 : }
219 :
220 :
221 0 : void OTextOutputStream::checkOutputStream()
222 : throw(IOException)
223 : {
224 0 : if (! mxStream.is() )
225 : throw IOException(
226 : OUString("output stream is not initialized, you have to use setOutputStream first"),
227 0 : Reference<XInterface>());
228 0 : }
229 :
230 :
231 :
232 : // XActiveDataSource
233 :
234 0 : void OTextOutputStream::setOutputStream( const Reference< XOutputStream >& aStream )
235 : throw(RuntimeException, std::exception)
236 : {
237 0 : mxStream = aStream;
238 0 : }
239 :
240 0 : Reference< XOutputStream > OTextOutputStream::getOutputStream()
241 : throw(RuntimeException, std::exception)
242 : {
243 0 : return mxStream;
244 : }
245 :
246 :
247 0 : Reference< XInterface > SAL_CALL TextOutputStream_CreateInstance(
248 : SAL_UNUSED_PARAMETER const Reference< XComponentContext > &)
249 : {
250 0 : return Reference < XInterface >( ( OWeakObject * ) new OTextOutputStream() );
251 : }
252 :
253 0 : OUString TextOutputStream_getImplementationName() SAL_THROW( () )
254 : {
255 0 : return OUString( IMPLEMENTATION_NAME );
256 : }
257 :
258 :
259 0 : Sequence< OUString > TextOutputStream_getSupportedServiceNames()
260 : {
261 0 : Sequence< OUString > seqNames(1);
262 0 : seqNames.getArray()[0] = SERVICE_NAME;
263 0 : return seqNames;
264 : }
265 :
266 0 : OUString OTextOutputStream::getImplementationName() throw(std::exception)
267 : {
268 0 : return TextOutputStream_getImplementationName();
269 : }
270 :
271 0 : sal_Bool OTextOutputStream::supportsService(const OUString& ServiceName) throw(std::exception)
272 : {
273 0 : return cppu::supportsService(this, ServiceName);
274 : }
275 :
276 0 : Sequence< OUString > OTextOutputStream::getSupportedServiceNames(void) throw(std::exception)
277 : {
278 0 : return TextOutputStream_getSupportedServiceNames();
279 : }
280 :
281 :
282 : }
283 :
284 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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