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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 : #ifndef INCLUDED_SAX_SOURCE_TOOLS_FASTSERIALIZER_HXX
21 : #define INCLUDED_SAX_SOURCE_TOOLS_FASTSERIALIZER_HXX
22 :
23 : #include <com/sun/star/xml/sax/XFastTokenHandler.hpp>
24 : #include <com/sun/star/io/XOutputStream.hpp>
25 :
26 : #include <sax/fastattribs.hxx>
27 : #include <sax/fshelper.hxx>
28 : #include <CachedOutputStream.hxx>
29 :
30 : #include <stack>
31 : #include <map>
32 : #include <boost/shared_ptr.hpp>
33 :
34 : namespace sax_fastparser {
35 :
36 : struct TokenValue
37 : {
38 : sal_Int32 nToken;
39 : const char *pValue;
40 251324 : TokenValue(sal_Int32 _nToken, const char *_pValue) : nToken(_nToken), pValue(_pValue) {}
41 : };
42 : typedef std::vector<TokenValue> TokenValueList;
43 :
44 : /// Receives notification of sax document events to write into an XOutputStream.
45 : class FastSaxSerializer
46 : {
47 : typedef ::com::sun::star::uno::Sequence< ::sal_Int8 > Int8Sequence;
48 : typedef ::com::sun::star::uno::Sequence< ::sal_Int32 > Int32Sequence;
49 :
50 : public:
51 : FastSaxSerializer( const css::uno::Reference< css::io::XOutputStream >& xOutputStream );
52 : ~FastSaxSerializer();
53 :
54 : ::com::sun::star::uno::Reference< ::com::sun::star::io::XOutputStream > getOutputStream();
55 : /// called by FSHelper to put data in for writeTokenValueList
56 360031 : TokenValueList& getTokenValueList() { return maTokenValues; }
57 :
58 : /** called by the parser when parsing of an XML stream is started.
59 : */
60 : void startDocument();
61 :
62 : /** called by the parser after the last XML element of a stream is processed.
63 : */
64 : void endDocument();
65 :
66 : /** receives notification of the beginning of an element.
67 :
68 : @param Element
69 : contains the integer token from the <type>XFastTokenHandler</type>
70 : registered at the <type>XFastParser</type>.<br>
71 :
72 : If the element has a namespace that was registered with the
73 : <type>XFastParser</type>, <param>Element</param> contains the integer
74 : token of the elements local name from the <type>XFastTokenHandler</type>
75 : and the integer token of the namespace combined with an arithmetic
76 : <b>or</b> operation.
77 :
78 : @param pAttrList
79 : Contains a <type>FastAttributeList</type> to access the attributes
80 : from the element.
81 :
82 : */
83 : void startFastElement( ::sal_Int32 Element, FastAttributeList* pAttrList = NULL );
84 :
85 : /** receives notification of the end of an known element.
86 : @see startFastElement
87 : */
88 : void endFastElement( ::sal_Int32 Element );
89 :
90 : /** receives notification of the beginning of a single element.
91 :
92 : @param Element
93 : contains the integer token from the <type>XFastTokenHandler</type>
94 : registered at the <type>XFastParser</type>.<br>
95 :
96 : If the element has a namespace that was registered with the
97 : <type>XFastParser</type>, <param>Element</param> contains the integer
98 : token of the elements local name from the <type>XFastTokenHandler</type>
99 : and the integer token of the namespace combined with an arithmetic
100 : <b>or</b> operation.
101 :
102 : @param pAttrList
103 : Contains a <type>FastAttributeList</type> to access the attributes
104 : from the element.
105 :
106 : */
107 : void singleFastElement( ::sal_Int32 Element, FastAttributeList* pAttrList = NULL );
108 :
109 : // C++ helpers
110 : void writeId( ::sal_Int32 Element );
111 : OString getId( ::sal_Int32 Element );
112 :
113 : void write( double value );
114 : void write( const OUString& s, bool bEscape = false );
115 : void write( const OString& s, bool bEscape = false );
116 : void write( const char* pStr, sal_Int32 nLen, bool bEscape = false );
117 :
118 : public:
119 : /** From now on, don't write directly to the stream, but to top of a stack.
120 :
121 : This is to be able to change the order of the data being written.
122 : If you need to write eg.
123 : p, r, rPr, [something], /rPr, t, [text], /t, /r, /p,
124 : but get it in order
125 : p, r, t, [text], /t, rPr, [something], /rPr, /r, /p,
126 : simply do
127 : p, r, mark(), t, [text], /t, mark(), rPr, [something], /rPr,
128 : mergeTopMarks( MERGE_MARKS_PREPEND ), mergeTopMarks( MERGE_MARKS_APPEND ), /r, /p
129 : and you are done.
130 : */
131 : void mark( const Int32Sequence& aOrder = Int32Sequence() );
132 :
133 : /** Merge 2 topmost marks.
134 :
135 : The possibilities: prepend the top before the second top-most
136 : mark, append it, append it later or ignore; prepending brings the possibility
137 : to switch parts of the output, appending later allows to write some
138 : output in advance.
139 :
140 : Writes the result to the output stream if the mark stack becomes empty
141 : by the operation.
142 :
143 : When the MERGE_MARKS_POSTPONE is specified, the merge happens just
144 : before the next merge.
145 :
146 : @see mark()
147 : */
148 : void mergeTopMarks( sax_fastparser::MergeMarksEnum eMergeType = sax_fastparser::MERGE_MARKS_APPEND );
149 :
150 : private:
151 : /** Helper class to cache data and write in chunks to XOutputStream or ForMerge::append.
152 : * Its flush method needs to be called before touching maMarkStack
153 : * to ensure correct order of ForSort methods.
154 : */
155 : CachedOutputStream maCachedOutputStream;
156 : ::com::sun::star::uno::Reference< ::com::sun::star::xml::sax::XFastTokenHandler > mxFastTokenHandler;
157 :
158 : class ForMerge : public ForMergeBase
159 : {
160 : Int8Sequence maData;
161 : Int8Sequence maPostponed;
162 :
163 : public:
164 121899 : ForMerge() : maData(), maPostponed() {}
165 198622 : virtual ~ForMerge() {}
166 :
167 99311 : virtual void setCurrentElement( ::sal_Int32 /*nToken*/ ) {}
168 : virtual Int8Sequence& getData();
169 : #if OSL_DEBUG_LEVEL > 0
170 : virtual void print();
171 : #endif
172 :
173 : virtual void prepend( const Int8Sequence &rWhat );
174 : virtual void append( const Int8Sequence &rWhat ) SAL_OVERRIDE;
175 : void postpone( const Int8Sequence &rWhat );
176 :
177 : protected:
178 : void resetData( );
179 : static void merge( Int8Sequence &rTop, const Int8Sequence &rMerge, bool bAppend );
180 : };
181 :
182 90352 : class ForSort : public ForMerge
183 : {
184 : std::map< ::sal_Int32, Int8Sequence > maData;
185 : sal_Int32 mnCurrentElement;
186 :
187 : Int32Sequence maOrder;
188 :
189 : public:
190 45176 : ForSort( const Int32Sequence& aOrder ) :
191 : ForMerge(),
192 : maData(),
193 : mnCurrentElement( 0 ),
194 45176 : maOrder( aOrder ) {}
195 :
196 : void setCurrentElement( ::sal_Int32 nToken ) SAL_OVERRIDE;
197 :
198 : virtual Int8Sequence& getData() SAL_OVERRIDE;
199 :
200 : #if OSL_DEBUG_LEVEL > 0
201 : virtual void print() SAL_OVERRIDE;
202 : #endif
203 :
204 : virtual void prepend( const Int8Sequence &rWhat ) SAL_OVERRIDE;
205 : virtual void append( const Int8Sequence &rWhat ) SAL_OVERRIDE;
206 : private:
207 : void sort();
208 : };
209 :
210 : ::std::stack< boost::shared_ptr< ForMerge > > maMarkStack;
211 : bool mbMarkStackEmpty;
212 : // Would be better to use OStringBuffer instead of these two
213 : // but then we couldn't get the rtl_String* member :-(
214 : rtl_String *mpDoubleStr;
215 : sal_Int32 mnDoubleStrCapacity;
216 : TokenValueList maTokenValues;
217 :
218 : #ifdef DBG_UTIL
219 : ::std::stack<sal_Int32> m_DebugStartedElements;
220 : #endif
221 :
222 : void writeTokenValueList();
223 : void writeFastAttributeList(FastAttributeList& rAttrList);
224 :
225 : /** Forward the call to the output stream, or write to the stack.
226 :
227 : The latter in the case that we are inside a mark().
228 : */
229 : void writeBytes( const ::com::sun::star::uno::Sequence< ::sal_Int8 >& aData );
230 : void writeBytes( const char* pStr, size_t nLen );
231 : };
232 :
233 : } // namespace sax_fastparser
234 :
235 : #endif
236 :
237 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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