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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 : #include "unotools/unotoolsdllapi.h"
20 :
21 : #ifndef _UTL_STREAM_WRAPPER_HXX_
22 : #define _UTL_STREAM_WRAPPER_HXX_
23 : #include <osl/mutex.hxx>
24 : #include <com/sun/star/io/XOutputStream.hpp>
25 : #include <com/sun/star/io/XInputStream.hpp>
26 : #include <com/sun/star/io/XSeekable.hpp>
27 : #include <com/sun/star/io/XTruncate.hpp>
28 : #include <com/sun/star/io/XStream.hpp>
29 : #include <cppuhelper/implbase3.hxx>
30 : #include <cppuhelper/implbase1.hxx>
31 :
32 : class SvStream;
33 :
34 : namespace utl
35 : {
36 : namespace stario = ::com::sun::star::io;
37 : namespace staruno = ::com::sun::star::uno;
38 :
39 : //==================================================================
40 : //= OInputStreamWrapper
41 : //==================================================================
42 : typedef ::cppu::WeakImplHelper1 < stario::XInputStream
43 : > InputStreamWrapper_Base;
44 : // needed for some compilers
45 : /// helper class for wrapping an SvStream into an com.sun.star.io::XInputStream
46 : class UNOTOOLS_DLLPUBLIC OInputStreamWrapper : public InputStreamWrapper_Base
47 : {
48 : protected:
49 : ::osl::Mutex m_aMutex;
50 : SvStream* m_pSvStream;
51 : sal_Bool m_bSvStreamOwner : 1;
52 365 : OInputStreamWrapper()
53 365 : { m_pSvStream = 0; m_bSvStreamOwner = sal_False; }
54 365 : void SetStream(SvStream* _pStream, sal_Bool bOwner )
55 365 : { m_pSvStream = _pStream; m_bSvStreamOwner = bOwner; }
56 :
57 : public:
58 : OInputStreamWrapper(SvStream& _rStream);
59 : OInputStreamWrapper(SvStream* pStream, sal_Bool bOwner=sal_False);
60 : virtual ~OInputStreamWrapper();
61 :
62 : // stario::XInputStream
63 : virtual sal_Int32 SAL_CALL readBytes(staruno::Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead) throw(stario::NotConnectedException, stario::BufferSizeExceededException, staruno::RuntimeException);
64 : virtual sal_Int32 SAL_CALL readSomeBytes(staruno::Sequence< sal_Int8 >& aData, sal_Int32 nMaxBytesToRead) throw(stario::NotConnectedException, stario::BufferSizeExceededException, staruno::RuntimeException);
65 : virtual void SAL_CALL skipBytes(sal_Int32 nBytesToSkip) throw(stario::NotConnectedException, stario::BufferSizeExceededException, staruno::RuntimeException);
66 : virtual sal_Int32 SAL_CALL available() throw(stario::NotConnectedException, staruno::RuntimeException);
67 : virtual void SAL_CALL closeInput() throw(stario::NotConnectedException, staruno::RuntimeException);
68 :
69 : protected:
70 : /// throws a NotConnectedException if the object is not connected anymore
71 : void checkConnected() const;
72 : /// throws an exception according to the error flag of m_pSvStream
73 : void checkError() const;
74 : };
75 :
76 : //==================================================================
77 : //= OSeekableInputStreamWrapper
78 : //==================================================================
79 : typedef ::cppu::ImplHelper1 < ::com::sun::star::io::XSeekable
80 : > OSeekableInputStreamWrapper_Base;
81 : /** helper class for wrapping an SvStream into an com.sun.star.io::XInputStream
82 : which is seekable (i.e. supports the com.sun.star.io::XSeekable interface).
83 : */
84 631 : class UNOTOOLS_DLLPUBLIC OSeekableInputStreamWrapper : public ::cppu::ImplInheritanceHelper1 < OInputStreamWrapper, com::sun::star::io::XSeekable >
85 : {
86 : protected:
87 99 : OSeekableInputStreamWrapper() {}
88 : public:
89 : OSeekableInputStreamWrapper(SvStream& _rStream);
90 : OSeekableInputStreamWrapper(SvStream* _pStream, sal_Bool _bOwner = sal_False);
91 :
92 : // XSeekable
93 : virtual void SAL_CALL seek( sal_Int64 _nLocation ) throw (::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException);
94 : virtual sal_Int64 SAL_CALL getPosition( ) throw (::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException);
95 : virtual sal_Int64 SAL_CALL getLength( ) throw (::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException);
96 : };
97 :
98 : //==================================================================
99 : //= OOutputStreamWrapper
100 : //==================================================================
101 : typedef ::cppu::WeakImplHelper1<stario::XOutputStream> OutputStreamWrapper_Base;
102 : // needed for some compilers
103 : class OOutputStreamWrapper : public OutputStreamWrapper_Base
104 : {
105 : public:
106 : UNOTOOLS_DLLPUBLIC OOutputStreamWrapper(SvStream& _rStream);
107 :
108 : protected:
109 : virtual ~OOutputStreamWrapper();
110 :
111 : // stario::XOutputStream
112 : virtual void SAL_CALL writeBytes(const staruno::Sequence< sal_Int8 >& aData) throw(stario::NotConnectedException, stario::BufferSizeExceededException, staruno::RuntimeException);
113 : virtual void SAL_CALL flush() throw(stario::NotConnectedException, stario::BufferSizeExceededException, staruno::RuntimeException);
114 : virtual void SAL_CALL closeOutput() throw(stario::NotConnectedException, stario::BufferSizeExceededException, staruno::RuntimeException);
115 :
116 : /// throws an exception according to the error flag of m_pSvStream
117 : void checkError() const;
118 :
119 : // TODO: thread safety!
120 : SvStream& rStream;
121 : };
122 :
123 : //==================================================================
124 : //= OSeekableOutputStreamWrapper
125 : //==================================================================
126 : typedef ::cppu::ImplHelper1 < ::com::sun::star::io::XSeekable
127 : > OSeekableOutputStreamWrapper_Base;
128 : /** helper class for wrapping an SvStream into an com.sun.star.io::XOutputStream
129 : which is seekable (i.e. supports the com.sun.star.io::XSeekable interface).
130 : */
131 : class OSeekableOutputStreamWrapper
132 : :public OOutputStreamWrapper
133 : ,public OSeekableOutputStreamWrapper_Base
134 : {
135 : public:
136 : UNOTOOLS_DLLPUBLIC OSeekableOutputStreamWrapper(SvStream& _rStream);
137 :
138 : private:
139 : virtual ~OSeekableOutputStreamWrapper();
140 :
141 : // disambiguate XInterface
142 : virtual ::com::sun::star::uno::Any SAL_CALL queryInterface( const ::com::sun::star::uno::Type& _rType ) throw (::com::sun::star::uno::RuntimeException);
143 : virtual void SAL_CALL acquire( ) throw ();
144 : virtual void SAL_CALL release( ) throw ();
145 :
146 : // XSeekable
147 : virtual void SAL_CALL seek( sal_Int64 _nLocation ) throw (::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException);
148 : virtual sal_Int64 SAL_CALL getPosition( ) throw (::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException);
149 : virtual sal_Int64 SAL_CALL getLength( ) throw (::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException);
150 : };
151 :
152 198 : class UNOTOOLS_DLLPUBLIC OStreamWrapper : public ::cppu::ImplInheritanceHelper3 < OSeekableInputStreamWrapper, com::sun::star::io::XStream, com::sun::star::io::XOutputStream, com::sun::star::io::XTruncate >
153 : {
154 : public:
155 : OStreamWrapper(SvStream& _rStream);
156 :
157 : // stario::XStream
158 : virtual ::com::sun::star::uno::Reference< ::com::sun::star::io::XInputStream > SAL_CALL getInputStream( ) throw (::com::sun::star::uno::RuntimeException);
159 : virtual ::com::sun::star::uno::Reference< ::com::sun::star::io::XOutputStream > SAL_CALL getOutputStream( ) throw (::com::sun::star::uno::RuntimeException);
160 :
161 : // stario::XOutputStream
162 : virtual void SAL_CALL writeBytes(const staruno::Sequence< sal_Int8 >& aData) throw(stario::NotConnectedException, stario::BufferSizeExceededException, staruno::RuntimeException);
163 : virtual void SAL_CALL flush() throw(stario::NotConnectedException, stario::BufferSizeExceededException, staruno::RuntimeException);
164 : virtual void SAL_CALL closeOutput() throw(stario::NotConnectedException, stario::BufferSizeExceededException, staruno::RuntimeException);
165 : virtual void SAL_CALL truncate() throw(::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException);
166 : };
167 :
168 : }
169 : // namespace utl
170 :
171 : #endif // _UTL_STREAM_WRAPPER_HXX_
172 :
173 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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