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
|
/*************************************************************************
*
* The Contents of this file are made available subject to the terms of
* either of the following licenses
*
* - GNU Lesser General Public License Version 2.1
* - Sun Industry Standards Source License Version 1.1
*
* Sun Microsystems Inc., October, 2000
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2000 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
*
* Sun Industry Standards Source License Version 1.1
* =================================================
* The contents of this file are subject to the Sun Industry Standards
* Source License Version 1.1 (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.openoffice.org/license.html.
*
* Software provided under this License is provided on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
* See the License for the specific provisions governing your rights and
* obligations concerning the Software.
*
* The Initial Developer of the Original Code is: IBM Corporation
*
* Copyright: 2008 by IBM Corporation
*
* All Rights Reserved.
*
* Contributor(s): _______________________________________
*
*
************************************************************************/
/*************************************************************************
* @file
* For LWP filter architecture prototype
************************************************************************/
/*************************************************************************
* Change History
Jan 2005 Created
************************************************************************/
#ifndef _LWPOBJECTID_HXX
#include "lwpobjid.hxx"
#endif
#include "lwpfilehdr.hxx"
#include "lwpobjfactory.hxx"
#include "lwpglobalmgr.hxx"
LwpObjectID::LwpObjectID(sal_uInt32 low, sal_uInt16 high)
:m_nLow(low), m_nHigh(high), m_bIsCompressed(sal_False), m_nIndex(0)
{
}
/**
* @descr Read object id with format: low(4bytes)+high(2bytes) from stream
* for LWP7 record
*/
sal_uInt32 LwpObjectID::Read(LwpSvStream *pStrm)
{
pStrm->Read(&m_nLow, sizeof(m_nLow));
pStrm->Read(&m_nHigh, sizeof(m_nHigh));
return DiskSize();
}
/**
* @descr Read object id with format: low(4bytes)+high(2bytes) from object stream
*/
sal_uInt32 LwpObjectID::Read(LwpObjectStream *pObj)
{
pObj->QuickRead(&m_nLow, sizeof(m_nLow));
pObj->QuickRead(&m_nHigh, sizeof(m_nHigh));
return DiskSize();
}
/**
* @descr Read object id with indexed format from stream
* if index>0, lowid is get from time table per the index
* else index+lowid+highid
*/
sal_uInt32 LwpObjectID::ReadIndexed(LwpSvStream *pStrm)
{
//note the m_nLow store the index instead of time from the timetable as in LWP
m_bIsCompressed = sal_False;
if( LwpFileHeader::m_nFileRevision < 0x000B)
{
return Read(pStrm);
}
pStrm->Read(&m_nIndex, sizeof(m_nIndex));
if (m_nIndex)
{
m_bIsCompressed = sal_True;
//m_nLow = index; //note the m_nLow stores the index instead of the actual time id
LwpGlobalMgr* pGlobal = LwpGlobalMgr::GetInstance();
LwpObjectFactory* pFactory = pGlobal->GetLwpObjFactory();
LwpIndexManager* pIdxMgr = pFactory->GetIndexManager();
m_nLow = pIdxMgr->GetObjTime( (sal_uInt16)m_nIndex);
}
else
{
pStrm->Read(&m_nLow, sizeof(m_nLow));
}
pStrm->Read(&m_nHigh, sizeof(m_nHigh));
return DiskSizeIndexed();
}
/**
* @descr Read object id with indexed format from object stream
* if index>0, lowid is get from time table per the index
* else index+lowid+highid
*/
sal_uInt32 LwpObjectID::ReadIndexed(LwpObjectStream *pStrm)
{
m_bIsCompressed = sal_False;
if(LwpFileHeader::m_nFileRevision < 0x000B)
{
return Read(pStrm);
}
pStrm->QuickRead(&m_nIndex, sizeof(m_nIndex));
if (m_nIndex)
{
m_bIsCompressed = sal_True;
//m_nLow = index; //note the m_nLow stores the index instead of the actual time id
LwpGlobalMgr* pGlobal = LwpGlobalMgr::GetInstance();
LwpObjectFactory* pFactory = pGlobal->GetLwpObjFactory();
LwpIndexManager* pIdxMgr = pFactory->GetIndexManager();
m_nLow = pIdxMgr->GetObjTime( (sal_uInt16)m_nIndex);
}
else
{
pStrm->QuickRead(&m_nLow, sizeof(m_nLow));
}
pStrm->QuickRead(&m_nHigh, sizeof(m_nHigh));
return DiskSizeIndexed();
}
/**
* @descr Read object id with compressed format from stream
* if diff == 255: 255+lowid+highid
* else lowid equals to the lowid of previous low id
* and high id = the high id of previous id + diff +1
*/
sal_uInt32 LwpObjectID::ReadCompressed( LwpSvStream* pStrm, LwpObjectID &prev )
{
sal_uInt32 len=0;
sal_uInt8 diff;
len = pStrm->Read( &diff, sizeof(diff));
if (diff == 255)
{
len += Read(pStrm);
}
else
{
m_nLow = prev.GetLow();
m_nHigh = prev.GetHigh() + diff +1;
}
return len;
}
/**
* @descr Read object id with compressed format from object stream
* if diff == 255: 255+lowid+highid
* else lowid equals to the lowid of previous low id
* and high id = the high id of previous id + diff +1
*/
sal_uInt32 LwpObjectID::ReadCompressed( LwpObjectStream* pObj, LwpObjectID &prev )
{
sal_uInt32 len=0;
sal_uInt8 diff;
len += pObj->QuickRead( &diff, sizeof(diff));
if (diff == 255)
{
len += Read(pObj);
}
else
{
m_nLow = prev.GetLow();
m_nHigh = prev.GetHigh() + diff +1;
}
return len;
}
/**
* @descr return the size of indexed object id
*/
sal_uInt32 LwpObjectID::DiskSizeIndexed() const
{
return sizeof(sal_uInt8)
+ (((0 < m_nIndex) && (m_nIndex <= 255)) ? 0 : sizeof(m_nLow))
+ sizeof(m_nHigh);
}
/**
* @descr return the size of object id with format: low(4bytes)+high(2bytes)
*/
sal_uInt32 LwpObjectID::DiskSize() const
{
return sizeof(m_nLow) + sizeof(m_nHigh);
}
/**
* @descr get object from object factory per the object id
*/
LwpObject* LwpObjectID::obj(VO_TYPE tag) const
{
LwpGlobalMgr* pGlobal = LwpGlobalMgr::GetInstance();
LwpObjectFactory* pObjMgr = pGlobal->GetLwpObjFactory();
if(IsNull())
{
return NULL;
}
LwpObject* pObj = pObjMgr->QueryObject(*this);
if( tag!=VO_INVALID && (pObj) )
{
if(tag!=pObj->GetTag())
{
pObj=NULL;
}
}
return(pObj);
}
/**
* @descr returns a buffer that contains the highid + lowid
*/
sal_Char* LwpObjectID::GetBuffer(sal_Char *buf)
{
buf[0] = m_nHigh && 0xFF00;
buf[1] = m_nHigh && 0x00FF;
buf[2] = m_nLow && 0xFF000000;
buf[3] = m_nLow && 0x00FF0000;
buf[4] = m_nLow && 0x0000FF00;
buf[5] = m_nLow && 0x000000FF;
return buf;
}
|
