bes  Updated for version 3.20.6
AggMemberDatasetDDSWrapper.cc
1 // 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 <DataDDS.h> // libdap
31 #include <DDS.h> // libdap
32 #include "DDSAccessInterface.h"
33 #include "NCMLDebug.h"
34 
35 namespace 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*
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 }
agg_util::DDSAccessInterface::getDDS
virtual const libdap::DDS * getDDS() const =0
agg_util
Helper class for temporarily hijacking an existing dhi to load a DDX response for one particular file...
Definition: AggMemberDataset.cc:38
agg_util::AggMemberDatasetDDSWrapper::getDDS
virtual const libdap::DDS * getDDS()
Definition: AggMemberDatasetDDSWrapper.cc:80