bes Updated for version 3.20.10
AggMemberDatasetDDSWrapper.cc
1
2// This file is part of the "NcML Module" project, a BES module designed
3// to allow NcML files to be used to be used as a wrapper to add
4// AIS to existing datasets of any format.
5//
6// Copyright (c) 2010 OPeNDAP, Inc.
7// Author: Michael Johnson <m.johnson@opendap.org>
8//
9// For more information, please also see the main website: http://opendap.org/
10//
11// This library is free software; you can redistribute it and/or
12// modify it under the terms of the GNU Lesser General Public
13// License as published by the Free Software Foundation; either
14// version 2.1 of the License, or (at your option) any later version.
15//
16// This library is distributed in the hope that it will be useful,
17// but WITHOUT ANY WARRANTY; without even the implied warranty of
18// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19// Lesser General Public License for more details.
20//
21// You should have received a copy of the GNU Lesser General Public
22// License along with this library; if not, write to the Free Software
23// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
24//
25// Please see the files COPYING and COPYRIGHT for more information on the GLPL.
26//
27// You can contact OPeNDAP, Inc. at PO Box 112, Saunderstown, RI. 02874-0112.
29#include "AggMemberDatasetDDSWrapper.h"
30#include <libdap/DataDDS.h> // libdap
31#include <libdap/DDS.h> // libdap
32#include "DDSAccessInterface.h"
33#include "NCMLDebug.h"
34
35namespace agg_util
36{
37 AggMemberDatasetDDSWrapper::AggMemberDatasetDDSWrapper()
38 : AggMemberDatasetWithDimensionCacheBase("") // empty location for the wrapper
39 , _pDDSHolder(0) // NULL, really shouldn't create a default.
40 {
41 }
42
43 AggMemberDatasetDDSWrapper::AggMemberDatasetDDSWrapper(const DDSAccessInterface* pDDSHolder)
44 : AggMemberDatasetWithDimensionCacheBase("") // empty location
45 , _pDDSHolder(pDDSHolder)
46 {
47 }
48
49 AggMemberDatasetDDSWrapper::~AggMemberDatasetDDSWrapper()
50 {
51 BESDEBUG("ncml:memory", "~AggMemberDatasetDDSWrapper() called..." << endl);
52 cleanup(); // will unref()
53 }
54
55 AggMemberDatasetDDSWrapper::AggMemberDatasetDDSWrapper(const AggMemberDatasetDDSWrapper& proto)
56 : RCObjectInterface()
57 , AggMemberDatasetWithDimensionCacheBase(proto)
58 , _pDDSHolder(0)
59 {
60 copyRepFrom(proto);
61 }
62
63 AggMemberDatasetDDSWrapper&
64 AggMemberDatasetDDSWrapper::operator=(const AggMemberDatasetDDSWrapper& that)
65 {
66 if (this != &that)
67 {
68 // deal with old reference
69 cleanup();
70 // super changes
71 AggMemberDatasetWithDimensionCacheBase::operator=(that);
72 // local changes
73 copyRepFrom(that);
74 }
75 return *this;
76 }
77
78
79 const libdap::DDS*
80 AggMemberDatasetDDSWrapper::getDDS()
81 {
82 const libdap::DDS* pDDS = 0;
83 if (_pDDSHolder)
84 {
85 pDDS = _pDDSHolder->getDDS();
86 }
87 return dynamic_cast<const libdap::DDS *>(pDDS);
88 }
89
91
92 void
93 AggMemberDatasetDDSWrapper::cleanup() throw()
94 {
95 _pDDSHolder = 0;
96 }
97
98 void
99 AggMemberDatasetDDSWrapper::copyRepFrom(const AggMemberDatasetDDSWrapper& rhs)
100 {
101 NCML_ASSERT(!_pDDSHolder);
102 _pDDSHolder = rhs._pDDSHolder;
103 }
104}
Helper class for temporarily hijacking an existing dhi to load a DDX response for one particular file...