1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <com/sun/star/uno/Reference.hxx>
#include <com/sun/star/embed/ElementModes.hpp>
#include <com/sun/star/embed/XHierarchicalStorageAccess2.hpp>
#include <com/sun/star/embed/XTransactedObject.hpp>
#include <com/sun/star/embed/XTransactionBroadcaster.hpp>
#include <com/sun/star/lang/WrappedTargetRuntimeException.hpp>
#include "ohierarchyholder.hxx"
using namespace ::com::sun::star;
// OHierarchyHolder_Impl
uno::Reference< embed::XExtendedStorageStream > OHierarchyHolder_Impl::GetStreamHierarchically( sal_Int32 nStorageMode, OStringList_Impl& aListPath, sal_Int32 nStreamMode, const ::comphelper::SequenceAsHashMap& aEncryptionData )
{
uno::Reference< embed::XStorage > xOwnStor( m_xWeakOwnStorage.get(), uno::UNO_QUERY_THROW );
if ( !( nStorageMode & embed::ElementModes::WRITE ) && ( nStreamMode & embed::ElementModes::WRITE ) )
throw io::IOException();
uno::Reference< embed::XExtendedStorageStream > xResult =
m_xChild->GetStreamHierarchically( nStorageMode, aListPath, nStreamMode, aEncryptionData );
if ( !xResult.is() )
throw uno::RuntimeException();
return xResult;
}
void OHierarchyHolder_Impl::RemoveStreamHierarchically( OStringList_Impl& aListPath )
{
uno::Reference< embed::XStorage > xOwnStor( m_xWeakOwnStorage.get(), uno::UNO_QUERY_THROW );
m_xChild->RemoveStreamHierarchically( aListPath );
}
// static
OStringList_Impl OHierarchyHolder_Impl::GetListPathFromString( const OUString& aPath )
{
OStringList_Impl aResult;
sal_Int32 nIndex = 0;
do
{
OUString aName = aPath.getToken( 0, '/', nIndex );
if ( aName.isEmpty() )
throw lang::IllegalArgumentException();
aResult.push_back( aName );
}
while ( nIndex >= 0 );
return aResult;
}
// OHierarchyElement_Impl
uno::Reference< embed::XExtendedStorageStream > OHierarchyElement_Impl::GetStreamHierarchically( sal_Int32 nStorageMode, OStringList_Impl& aListPath, sal_Int32 nStreamMode, const ::comphelper::SequenceAsHashMap& aEncryptionData )
{
::osl::MutexGuard aGuard( m_aMutex );
if ( !( nStorageMode & embed::ElementModes::WRITE ) && ( nStreamMode & embed::ElementModes::WRITE ) )
throw io::IOException();
if ( aListPath.empty() )
throw uno::RuntimeException();
OUString aNextName = *(aListPath.begin());
aListPath.erase( aListPath.begin() );
uno::Reference< embed::XExtendedStorageStream > xResult;
uno::Reference< embed::XStorage > xOwnStor;
xOwnStor = m_xOwnStorage.is() ? m_xOwnStorage
: uno::Reference< embed::XStorage >( m_xWeakOwnStorage.get(), uno::UNO_QUERY );
if ( !xOwnStor.is() )
throw uno::RuntimeException();
if ( aListPath.empty() )
{
if ( aEncryptionData.empty() )
{
uno::Reference< embed::XHierarchicalStorageAccess > xHStorage( xOwnStor, uno::UNO_QUERY_THROW );
xResult = xHStorage->openStreamElementByHierarchicalName( aNextName, nStreamMode );
}
else
{
uno::Reference< embed::XHierarchicalStorageAccess2 > xHStorage( xOwnStor, uno::UNO_QUERY_THROW );
xResult = xHStorage->openEncryptedStreamByHierarchicalName( aNextName, nStreamMode, aEncryptionData.getAsConstNamedValueList() );
}
uno::Reference< embed::XTransactedObject > xTransact( xResult, uno::UNO_QUERY );
if ( xTransact.is() )
{
// the existence of the transacted object means that the stream is opened for writing also
// so the whole chain must be committed
uno::Reference< embed::XTransactionBroadcaster > xTrBroadcast( xTransact, uno::UNO_QUERY_THROW );
xTrBroadcast->addTransactionListener( static_cast< embed::XTransactionListener* >( this ) );
}
else
{
uno::Reference< lang::XComponent > xStreamComp( xResult, uno::UNO_QUERY_THROW );
xStreamComp->addEventListener( static_cast< lang::XEventListener* >( this ) );
}
m_aOpenStreams.push_back( uno::WeakReference< embed::XExtendedStorageStream >( xResult ) );
}
else
{
bool bNewElement = false;
::rtl::Reference< OHierarchyElement_Impl > aElement;
OHierarchyElementList_Impl::iterator aIter = m_aChildren.find( aNextName );
if ( aIter != m_aChildren.end() )
aElement = aIter->second;
if ( !aElement.is() )
{
bNewElement = true;
uno::Reference< embed::XStorage > xChildStorage = xOwnStor->openStorageElement( aNextName, nStorageMode );
if ( !xChildStorage.is() )
throw uno::RuntimeException();
aElement = new OHierarchyElement_Impl( xChildStorage );
}
xResult = aElement->GetStreamHierarchically( nStorageMode, aListPath, nStreamMode, aEncryptionData );
if ( !xResult.is() )
throw uno::RuntimeException();
if ( bNewElement )
{
m_aChildren[aNextName] = aElement;
aElement->SetParent( this );
}
}
// the subelement was opened successfully, remember the storage to let it be locked
m_xOwnStorage = xOwnStor;
return xResult;
}
void OHierarchyElement_Impl::RemoveStreamHierarchically( OStringList_Impl& aListPath )
{
::osl::MutexGuard aGuard( m_aMutex );
if ( aListPath.empty() )
throw uno::RuntimeException();
OUString aNextName = *(aListPath.begin());
aListPath.erase( aListPath.begin() );
uno::Reference< embed::XExtendedStorageStream > xResult;
uno::Reference< embed::XStorage > xOwnStor;
xOwnStor = m_xOwnStorage.is() ? m_xOwnStorage
: uno::Reference< embed::XStorage >( m_xWeakOwnStorage.get(), uno::UNO_QUERY );
if ( !xOwnStor.is() )
throw uno::RuntimeException();
if ( aListPath.empty() )
{
xOwnStor->removeElement( aNextName );
}
else
{
::rtl::Reference< OHierarchyElement_Impl > aElement;
OHierarchyElementList_Impl::iterator aIter = m_aChildren.find( aNextName );
if ( aIter != m_aChildren.end() )
aElement = aIter->second;
if ( !aElement.is() )
{
uno::Reference< embed::XStorage > xChildStorage = xOwnStor->openStorageElement( aNextName,
embed::ElementModes::READWRITE );
if ( !xChildStorage.is() )
throw uno::RuntimeException();
aElement = new OHierarchyElement_Impl( xChildStorage );
}
aElement->RemoveStreamHierarchically( aListPath );
}
uno::Reference< embed::XTransactedObject > xTransact( xOwnStor, uno::UNO_QUERY );
if ( xTransact.is() )
xTransact->commit();
TestForClosing();
}
void OHierarchyElement_Impl::Commit()
{
::rtl::Reference< OHierarchyElement_Impl > aLocker( this );
::rtl::Reference< OHierarchyElement_Impl > aParent;
uno::Reference< embed::XStorage > xOwnStor;
{
::osl::MutexGuard aGuard( m_aMutex );
aParent = m_rParent;
xOwnStor = m_xOwnStorage;
}
if ( xOwnStor.is() )
{
uno::Reference< embed::XTransactedObject > xTransact( xOwnStor, uno::UNO_QUERY_THROW );
xTransact->commit();
if ( aParent.is() )
aParent->Commit();
}
}
void OHierarchyElement_Impl::TestForClosing()
{
::rtl::Reference< OHierarchyElement_Impl > aLocker( this );
{
::osl::MutexGuard aGuard( m_aMutex );
if ( m_aOpenStreams.empty() && m_aChildren.empty() )
{
if ( m_rParent.is() )
{
// only the root storage should not be disposed, other storages can be disposed
if ( m_xOwnStorage.is() )
{
try
{
m_xOwnStorage->dispose();
}
catch( uno::Exception& )
{}
}
m_rParent->RemoveElement( this );
}
m_xOwnStorage.clear();
}
}
}
void SAL_CALL OHierarchyElement_Impl::disposing( const lang::EventObject& Source )
{
try
{
::osl::ClearableMutexGuard aGuard( m_aMutex );
uno::Reference< embed::XExtendedStorageStream > xStream( Source.Source, uno::UNO_QUERY );
for ( OWeakStorRefList_Impl::iterator pStorageIter = m_aOpenStreams.begin();
pStorageIter != m_aOpenStreams.end(); )
{
OWeakStorRefList_Impl::iterator pTmp = pStorageIter++;
if ( !pTmp->get().is() || pTmp->get() == xStream )
m_aOpenStreams.erase( pTmp );
}
aGuard.clear();
TestForClosing();
}
catch( uno::Exception& )
{
throw uno::RuntimeException(); // no exception must happen here, usually an exception means disaster
}
}
void OHierarchyElement_Impl::RemoveElement( const ::rtl::Reference< OHierarchyElement_Impl >& aRef )
{
{
::osl::MutexGuard aGuard( m_aMutex );
OHierarchyElementList_Impl::iterator aIter = m_aChildren.begin();
while (aIter != m_aChildren.end())
{
if (aIter->second == aRef )
aIter = m_aChildren.erase(aIter);
else
++aIter;
}
}
TestForClosing();
}
// XTransactionListener
void SAL_CALL OHierarchyElement_Impl::preCommit( const css::lang::EventObject& /*aEvent*/ )
{
}
void SAL_CALL OHierarchyElement_Impl::commited( const css::lang::EventObject& /*aEvent*/ )
{
try
{
Commit();
}
catch( const uno::Exception& e )
{
throw lang::WrappedTargetRuntimeException(
"Can not commit storage sequence!",
uno::Reference< uno::XInterface >(),
uno::makeAny( e ) );
}
}
void SAL_CALL OHierarchyElement_Impl::preRevert( const css::lang::EventObject& /*aEvent*/ )
{
}
void SAL_CALL OHierarchyElement_Impl::reverted( const css::lang::EventObject& /*aEvent*/ )
{
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
