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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 COMPHELPER_NAMEDVALUECOLLECTION_HXX
21 : #define COMPHELPER_NAMEDVALUECOLLECTION_HXX
22 :
23 : #include <comphelper/comphelperdllapi.h>
24 :
25 : #include <com/sun/star/uno/Sequence.hxx>
26 : #include <com/sun/star/uno/Any.hxx>
27 : #include <com/sun/star/beans/PropertyValue.hpp>
28 : #include <com/sun/star/beans/NamedValue.hpp>
29 :
30 : #include <memory>
31 : #include <algorithm>
32 : #include <vector>
33 :
34 : //........................................................................
35 : namespace comphelper
36 : {
37 : //........................................................................
38 :
39 : // ====================================================================
40 : // = NamedValueCollection
41 : // ====================================================================
42 : struct NamedValueCollection_Impl;
43 : /** a collection of named values, packed in various formats.
44 : */
45 : class COMPHELPER_DLLPUBLIC NamedValueCollection
46 : {
47 : private:
48 : ::std::auto_ptr< NamedValueCollection_Impl > m_pImpl;
49 :
50 : public:
51 : NamedValueCollection();
52 :
53 : NamedValueCollection( const NamedValueCollection& _rCopySource );
54 :
55 : NamedValueCollection& operator=( const NamedValueCollection& i_rCopySource );
56 :
57 : /** constructs a collection
58 : @param _rElements
59 : the wrapped elements of the collection. The <code>Any</code> might contain a sequence of
60 : property values, a sequence of named values, or directly a property value or named value.
61 : All other cases are worth an assertion in non-product builds.
62 : */
63 : NamedValueCollection( const ::com::sun::star::uno::Any& _rElements );
64 :
65 : /** constructs a collection
66 : @param _rArguments
67 : a sequence of Any's containing either PropertyValue's or NamedValue's.
68 : */
69 : NamedValueCollection( const ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Any >& _rArguments );
70 :
71 : /** constructs a collection
72 : @param _rArguments
73 : a sequence of PropertyValues's
74 : */
75 : NamedValueCollection( const ::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue >& _rArguments );
76 :
77 : /** constructs a collection
78 : @param _rArguments
79 : a sequence of NamedValue's
80 : */
81 : NamedValueCollection( const ::com::sun::star::uno::Sequence< ::com::sun::star::beans::NamedValue >& _rArguments );
82 :
83 : ~NamedValueCollection();
84 :
85 : inline void assign( const ::com::sun::star::uno::Any& i_rWrappedElements )
86 : {
87 : impl_assign( i_rWrappedElements );
88 : }
89 :
90 1 : inline void assign( const ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Any >& _rArguments )
91 : {
92 1 : impl_assign( _rArguments );
93 1 : }
94 :
95 : inline void assign( const ::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue >& _rArguments )
96 : {
97 : impl_assign( _rArguments );
98 : }
99 :
100 : inline void assign( const ::com::sun::star::uno::Sequence< ::com::sun::star::beans::NamedValue >& _rArguments )
101 : {
102 : impl_assign( _rArguments );
103 : }
104 :
105 1 : inline void clear()
106 : {
107 1 : impl_assign( ::com::sun::star::uno::Sequence< ::com::sun::star::beans::NamedValue >() );
108 1 : }
109 :
110 : /** determines whether or not named values can be extracted from the given value
111 :
112 : @return
113 : <TRUE/> if and only if the given <code>Any</code> contains a <code>NamedValue</code>, a
114 : <code>PropertyValue</code>, or a sequence thereof.
115 : */
116 : static bool canExtractFrom( ::com::sun::star::uno::Any const & i_value );
117 :
118 : /// returns the number of elements in the collection
119 : size_t size() const;
120 :
121 : /// determines whether the collection is empty
122 : bool empty() const;
123 :
124 : /** returns the names of all elements in the collection
125 : */
126 : ::std::vector< OUString >
127 : getNames() const;
128 :
129 : /** merges the content of another collection into |this|
130 : @param _rAdditionalValues
131 : the collection whose values are to be merged
132 : @param _bOverwriteExisting
133 : defines whether or not elements which are already present in |this|
134 : should be overwritten (<TRUE/>) or preserved (<FALSE/>).
135 : @return |*this|
136 : */
137 : NamedValueCollection&
138 : merge(
139 : const NamedValueCollection& _rAdditionalValues,
140 : bool _bOverwriteExisting
141 : );
142 :
143 : /** retrieves a value with a given name from the collection, if it is present
144 :
145 : @param _pAsciiValueName
146 : the ASCII name of the value to retrieve
147 :
148 : @param _out_rValue
149 : is the output parameter taking the desired value upon successful return. If
150 : a value with the given name is not present in the collection, or if a wrong-typed
151 : value is present, then this parameter will not be touched.
152 :
153 : @return
154 : <TRUE/> if there is a value with the given name, which could successfully
155 : be extraced. In this case, <arg>_out_rValue</arg> will contain the requested
156 : value.<br/>
157 : <FALSE/>, if there is no value with the given name.
158 : @throws IllegalArgumentException
159 : in case there is a value with the given name, but it cannot legally assigned to
160 : _out_rValue.
161 : */
162 : template < typename VALUE_TYPE >
163 585 : bool get_ensureType( const sal_Char* _pAsciiValueName, VALUE_TYPE& _out_rValue ) const
164 : {
165 585 : return get_ensureType( OUString::createFromAscii( _pAsciiValueName ), &_out_rValue, ::cppu::UnoType< VALUE_TYPE >::get() );
166 : }
167 :
168 : template < typename VALUE_TYPE >
169 24810 : bool get_ensureType( const OUString& _rValueName, VALUE_TYPE& _out_rValue ) const
170 : {
171 24810 : return get_ensureType( _rValueName, &_out_rValue, ::cppu::UnoType< VALUE_TYPE >::get() );
172 : }
173 :
174 : /** retrieves a value with a given name, or defaults it to a given value, if its not present
175 : in the colllection
176 : */
177 : template < typename VALUE_TYPE >
178 24797 : VALUE_TYPE getOrDefault( const sal_Char* _pAsciiValueName, const VALUE_TYPE& _rDefault ) const
179 : {
180 24797 : return getOrDefault( OUString::createFromAscii( _pAsciiValueName ), _rDefault );
181 : }
182 :
183 : template < typename VALUE_TYPE >
184 24801 : VALUE_TYPE getOrDefault( const OUString& _rValueName, const VALUE_TYPE& _rDefault ) const
185 : {
186 24801 : VALUE_TYPE retVal( _rDefault );
187 24801 : get_ensureType( _rValueName, retVal );
188 24801 : return retVal;
189 : }
190 :
191 : /** retrieves a (untyped) value with a given name
192 :
193 : If the collection does not contain a value with the given name, an empty
194 : Any is returned.
195 : */
196 5664 : const ::com::sun::star::uno::Any& get( const sal_Char* _pAsciiValueName ) const
197 : {
198 5664 : return get( OUString::createFromAscii( _pAsciiValueName ) );
199 : }
200 :
201 : /** retrieves a (untyped) value with a given name
202 :
203 : If the collection does not contain a value with the given name, an empty
204 : Any is returned.
205 : */
206 5667 : const ::com::sun::star::uno::Any& get( const OUString& _rValueName ) const
207 : {
208 5667 : return impl_get( _rValueName );
209 : }
210 :
211 : /// determines whether a value with a given name is present in the collection
212 2229 : inline bool has( const sal_Char* _pAsciiValueName ) const
213 : {
214 2229 : return impl_has( OUString::createFromAscii( _pAsciiValueName ) );
215 : }
216 :
217 : /// determines whether a value with a given name is present in the collection
218 0 : inline bool has( const OUString& _rValueName ) const
219 : {
220 0 : return impl_has( _rValueName );
221 : }
222 :
223 : /** puts a value into the collection
224 :
225 : @return <TRUE/> if and only if a value was already present previously, in
226 : which case it has been overwritten.
227 : */
228 : template < typename VALUE_TYPE >
229 5967 : inline bool put( const sal_Char* _pAsciiValueName, const VALUE_TYPE& _rValue )
230 : {
231 5967 : return impl_put( OUString::createFromAscii( _pAsciiValueName ), ::com::sun::star::uno::makeAny( _rValue ) );
232 : }
233 :
234 : /** puts a value into the collection
235 :
236 : @return <TRUE/> if and only if a value was already present previously, in
237 : which case it has been overwritten.
238 : */
239 : template < typename VALUE_TYPE >
240 0 : inline bool put( const OUString& _rValueName, const VALUE_TYPE& _rValue )
241 : {
242 0 : return impl_put( _rValueName, ::com::sun::star::uno::makeAny( _rValue ) );
243 : }
244 :
245 524 : inline bool put( const sal_Char* _pAsciiValueName, const ::com::sun::star::uno::Any& _rValue )
246 : {
247 524 : return impl_put( OUString::createFromAscii( _pAsciiValueName ), _rValue );
248 : }
249 :
250 3016 : inline bool put( const OUString& _rValueName, const ::com::sun::star::uno::Any& _rValue )
251 : {
252 3016 : return impl_put( _rValueName, _rValue );
253 : }
254 :
255 : /** removes the value with the given name from the collection
256 :
257 : @return <TRUE/> if and only if a value with the given name existed in the collection.
258 : */
259 22077 : inline bool remove( const sal_Char* _pAsciiValueName )
260 : {
261 22077 : return impl_remove( OUString::createFromAscii( _pAsciiValueName ) );
262 : }
263 :
264 : /** removes the value with the given name from the collection
265 :
266 : @return <TRUE/> if and only if a value with the given name existed in the collection.
267 : */
268 0 : inline bool remove( const OUString& _rValueName )
269 : {
270 0 : return impl_remove( _rValueName );
271 : }
272 :
273 : /** transforms the collection to a sequence of PropertyValues
274 :
275 : @return
276 : the number of elements in the sequence
277 : */
278 : sal_Int32 operator >>= ( ::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue >& _out_rValues ) const;
279 :
280 : /** transforms the collection to a sequence of NamedValues
281 :
282 : @return
283 : the number of elements in the sequence
284 : */
285 : sal_Int32 operator >>= ( ::com::sun::star::uno::Sequence< ::com::sun::star::beans::NamedValue >& _out_rValues ) const;
286 :
287 : /** transforms the collection into a sequence of PropertyValues
288 : */
289 : inline ::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue >
290 5008 : getPropertyValues() const
291 : {
292 5008 : ::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue > aValues;
293 5008 : *this >>= aValues;
294 5008 : return aValues;
295 : }
296 :
297 : /** returns a Sequence< Any >, containing PropertyValues
298 : */
299 : inline ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Any >
300 956 : getWrappedPropertyValues() const
301 : {
302 956 : return impl_wrap< ::com::sun::star::beans::PropertyValue >();
303 : }
304 :
305 : /** returns a Sequence< Any >, containing NamedValues
306 : */
307 : inline ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Any >
308 0 : getWrappedNamedValues() const
309 : {
310 0 : return impl_wrap< ::com::sun::star::beans::NamedValue >();
311 : }
312 :
313 : /** transforms the collection into a sequence of NamedValues
314 : */
315 : inline ::com::sun::star::uno::Sequence< ::com::sun::star::beans::NamedValue >
316 0 : getNamedValues() const
317 : {
318 0 : ::com::sun::star::uno::Sequence< ::com::sun::star::beans::NamedValue > aValues;
319 0 : *this >>= aValues;
320 0 : return aValues;
321 : }
322 :
323 : private:
324 : void impl_assign( const ::com::sun::star::uno::Any& i_rWrappedElements );
325 : void impl_assign( const ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Any >& _rArguments );
326 : void impl_assign( const ::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue >& _rArguments );
327 : void impl_assign( const ::com::sun::star::uno::Sequence< ::com::sun::star::beans::NamedValue >& _rArguments );
328 :
329 : bool get_ensureType(
330 : const OUString& _rValueName,
331 : void* _pValueLocation,
332 : const ::com::sun::star::uno::Type& _rExpectedValueType
333 : ) const;
334 :
335 : const ::com::sun::star::uno::Any&
336 : impl_get( const OUString& _rValueName ) const;
337 :
338 : bool impl_has( const OUString& _rValueName ) const;
339 :
340 : bool impl_put( const OUString& _rValueName, const ::com::sun::star::uno::Any& _rValue );
341 :
342 : bool impl_remove( const OUString& _rValueName );
343 :
344 : template< class VALUE_TYPE >
345 956 : ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Any > impl_wrap() const
346 : {
347 956 : ::com::sun::star::uno::Sequence< VALUE_TYPE > aValues;
348 956 : *this >>= aValues;
349 956 : ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Any > aWrappedValues( aValues.getLength() );
350 :
351 956 : ::com::sun::star::uno::Any* pO = aWrappedValues.getArray();
352 956 : const VALUE_TYPE* pV = aValues.getConstArray();
353 956 : const sal_Int32 nLen = aValues.getLength();
354 3824 : for( sal_Int32 i = 0; i < nLen; ++i )
355 2868 : *(pO++) = ::com::sun::star::uno::makeAny<VALUE_TYPE>( *(pV++) );
356 :
357 956 : return aWrappedValues;
358 : }
359 : };
360 :
361 : //........................................................................
362 : } // namespace comphelper
363 : //........................................................................
364 :
365 : #endif // COMPHELPER_NAMEDVALUECOLLECTION_HXX
366 :
367 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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