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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 ::cppu;
43 : using namespace ::com::sun::star::uno;
44 : using namespace ::com::sun::star::lang;
45 : using namespace ::com::sun::star::io;
46 : using namespace ::com::sun::star::registry;
47 :
48 : namespace io_TextOutputStream
49 : {
50 :
51 : // Implementation XTextOutputStream
52 :
53 : typedef WeakImplHelper2< XTextOutputStream2, XServiceInfo > TextOutputStreamHelper;
54 :
55 : class OTextOutputStream : public TextOutputStreamHelper
56 : {
57 : Reference< XOutputStream > mxStream;
58 :
59 : // Encoding
60 : OUString mEncoding;
61 : bool mbEncodingInitialized;
62 : rtl_UnicodeToTextConverter mConvUnicode2Text;
63 : rtl_UnicodeToTextContext mContextUnicode2Text;
64 :
65 : Sequence<sal_Int8> implConvert( const OUString& rSource );
66 : void checkOutputStream() throw(IOException);
67 :
68 : public:
69 : OTextOutputStream();
70 : virtual ~OTextOutputStream();
71 :
72 : // Methods XTextOutputStream
73 : virtual void SAL_CALL writeString( const OUString& aString )
74 : throw(IOException, RuntimeException, std::exception) SAL_OVERRIDE;
75 : virtual void SAL_CALL setEncoding( const OUString& Encoding )
76 : throw(RuntimeException, std::exception) SAL_OVERRIDE;
77 :
78 : // Methods XOutputStream
79 : virtual void SAL_CALL writeBytes( const Sequence< sal_Int8 >& aData )
80 : throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException, std::exception) SAL_OVERRIDE;
81 : virtual void SAL_CALL flush( )
82 : throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException, std::exception) SAL_OVERRIDE;
83 : virtual void SAL_CALL closeOutput( )
84 : throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException, std::exception) SAL_OVERRIDE;
85 :
86 : // Methods XActiveDataSource
87 : virtual void SAL_CALL setOutputStream( const Reference< XOutputStream >& aStream )
88 : throw(RuntimeException, std::exception) SAL_OVERRIDE;
89 : virtual Reference< XOutputStream > SAL_CALL getOutputStream( )
90 : throw(RuntimeException, std::exception) SAL_OVERRIDE;
91 :
92 : // Methods XServiceInfo
93 : virtual OUString SAL_CALL getImplementationName() throw(std::exception) SAL_OVERRIDE;
94 : virtual Sequence< OUString > SAL_CALL getSupportedServiceNames(void) throw(std::exception) SAL_OVERRIDE;
95 : virtual sal_Bool SAL_CALL supportsService(const OUString& ServiceName) throw(std::exception) SAL_OVERRIDE;
96 : };
97 :
98 2 : OTextOutputStream::OTextOutputStream()
99 : : mbEncodingInitialized(false)
100 : , mConvUnicode2Text(NULL)
101 2 : , mContextUnicode2Text(NULL)
102 : {
103 2 : }
104 :
105 6 : OTextOutputStream::~OTextOutputStream()
106 : {
107 2 : if( mbEncodingInitialized )
108 : {
109 0 : rtl_destroyUnicodeToTextContext( mConvUnicode2Text, mContextUnicode2Text );
110 0 : rtl_destroyUnicodeToTextConverter( mConvUnicode2Text );
111 : }
112 4 : }
113 :
114 0 : Sequence<sal_Int8> OTextOutputStream::implConvert( const OUString& rSource )
115 : {
116 0 : const sal_Unicode *puSource = rSource.getStr();
117 0 : sal_Int32 nSourceSize = rSource.getLength();
118 :
119 0 : sal_Size nTargetCount = 0;
120 0 : sal_Size nSourceCount = 0;
121 :
122 : sal_uInt32 uiInfo;
123 : sal_Size nSrcCvtChars;
124 :
125 : // take nSourceSize * 3 as preference
126 : // this is an upper boundary for converting to utf8,
127 : // which most often used as the target.
128 0 : sal_Int32 nSeqSize = nSourceSize * 3;
129 :
130 0 : Sequence<sal_Int8> seqText( nSeqSize );
131 0 : sal_Char *pTarget = (sal_Char *) seqText.getArray();
132 : while( true )
133 : {
134 : nTargetCount += rtl_convertUnicodeToText(
135 : mConvUnicode2Text,
136 : mContextUnicode2Text,
137 : &( puSource[nSourceCount] ),
138 : nSourceSize - nSourceCount ,
139 : &( pTarget[nTargetCount] ),
140 : nSeqSize - nTargetCount,
141 : RTL_UNICODETOTEXT_FLAGS_UNDEFINED_DEFAULT |
142 : RTL_UNICODETOTEXT_FLAGS_INVALID_DEFAULT ,
143 : &uiInfo,
144 0 : &nSrcCvtChars);
145 0 : nSourceCount += nSrcCvtChars;
146 :
147 0 : if( uiInfo & RTL_UNICODETOTEXT_INFO_DESTBUFFERTOSMALL )
148 : {
149 0 : nSeqSize *= 2;
150 0 : seqText.realloc( nSeqSize ); // double array size
151 0 : pTarget = (sal_Char*) seqText.getArray();
152 0 : continue;
153 : }
154 0 : break;
155 : }
156 :
157 : // reduce the size of the buffer (fast, no copy necessary)
158 0 : seqText.realloc( nTargetCount );
159 0 : return seqText;
160 : }
161 :
162 :
163 :
164 : // XTextOutputStream
165 :
166 0 : void OTextOutputStream::writeString( const OUString& aString )
167 : throw(IOException, RuntimeException, std::exception)
168 : {
169 0 : checkOutputStream();
170 0 : if( !mbEncodingInitialized )
171 : {
172 0 : OUString aUtf8Str("utf8");
173 0 : setEncoding( aUtf8Str );
174 : }
175 0 : if( !mbEncodingInitialized )
176 0 : return;
177 :
178 0 : Sequence<sal_Int8> aByteSeq = implConvert( aString );
179 0 : mxStream->writeBytes( aByteSeq );
180 : }
181 :
182 0 : void OTextOutputStream::setEncoding( const OUString& Encoding )
183 : throw(RuntimeException, std::exception)
184 : {
185 0 : OString aOEncodingStr = OUStringToOString( Encoding, RTL_TEXTENCODING_ASCII_US );
186 0 : rtl_TextEncoding encoding = rtl_getTextEncodingFromMimeCharset( aOEncodingStr.getStr() );
187 0 : if( RTL_TEXTENCODING_DONTKNOW == encoding )
188 0 : return;
189 :
190 0 : mbEncodingInitialized = true;
191 0 : mConvUnicode2Text = rtl_createUnicodeToTextConverter( encoding );
192 0 : mContextUnicode2Text = rtl_createUnicodeToTextContext( mConvUnicode2Text );
193 0 : mEncoding = Encoding;
194 : }
195 :
196 :
197 : // XOutputStream
198 0 : void OTextOutputStream::writeBytes( const Sequence< sal_Int8 >& aData )
199 : throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException, std::exception)
200 : {
201 0 : checkOutputStream();
202 0 : mxStream->writeBytes( aData );
203 0 : }
204 :
205 0 : void OTextOutputStream::flush( )
206 : throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException, std::exception)
207 : {
208 0 : checkOutputStream();
209 0 : mxStream->flush();
210 0 : }
211 :
212 0 : void OTextOutputStream::closeOutput( )
213 : throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException, std::exception)
214 : {
215 0 : checkOutputStream();
216 0 : mxStream->closeOutput();
217 0 : }
218 :
219 :
220 0 : void OTextOutputStream::checkOutputStream()
221 : throw(IOException)
222 : {
223 0 : if (! mxStream.is() )
224 0 : throw IOException("output stream is not initialized, you have to use setOutputStream first");
225 0 : }
226 :
227 :
228 :
229 : // XActiveDataSource
230 :
231 0 : void OTextOutputStream::setOutputStream( const Reference< XOutputStream >& aStream )
232 : throw(RuntimeException, std::exception)
233 : {
234 0 : mxStream = aStream;
235 0 : }
236 :
237 0 : Reference< XOutputStream > OTextOutputStream::getOutputStream()
238 : throw(RuntimeException, std::exception)
239 : {
240 0 : return mxStream;
241 : }
242 :
243 :
244 2 : Reference< XInterface > SAL_CALL TextOutputStream_CreateInstance(
245 : SAL_UNUSED_PARAMETER const Reference< XComponentContext > &)
246 : {
247 2 : return Reference < XInterface >( ( OWeakObject * ) new OTextOutputStream() );
248 : }
249 :
250 208 : OUString TextOutputStream_getImplementationName()
251 : {
252 208 : return OUString( IMPLEMENTATION_NAME );
253 : }
254 :
255 :
256 2 : Sequence< OUString > TextOutputStream_getSupportedServiceNames()
257 : {
258 2 : Sequence< OUString > seqNames(1);
259 2 : seqNames.getArray()[0] = SERVICE_NAME;
260 2 : return seqNames;
261 : }
262 :
263 0 : OUString OTextOutputStream::getImplementationName() throw(std::exception)
264 : {
265 0 : return TextOutputStream_getImplementationName();
266 : }
267 :
268 0 : sal_Bool OTextOutputStream::supportsService(const OUString& ServiceName) throw(std::exception)
269 : {
270 0 : return cppu::supportsService(this, ServiceName);
271 : }
272 :
273 0 : Sequence< OUString > OTextOutputStream::getSupportedServiceNames(void) throw(std::exception)
274 : {
275 0 : return TextOutputStream_getSupportedServiceNames();
276 : }
277 :
278 :
279 : }
280 :
281 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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