bes  Updated for version 3.20.6
HDF5CFUInt64.cc
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1 // This file is part of hdf5_handler: an HDF5 file handler for the OPeNDAP
2 // data server.
3 
4 // Copyright (c) 2011-2018 The HDF Group, Inc. and OPeNDAP, Inc.
5 //
6 // This is free software; you can redistribute it and/or modify it under the
7 // terms of the GNU Lesser General Public License as published by the Free
8 // Software Foundation; either version 2.1 of the License, or (at your
9 // option) any later version.
10 //
11 // This software is distributed in the hope that it will be useful, but
12 // WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
13 // or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
14 // License for more details.
15 //
16 // You should have received a copy of the GNU Lesser General Public
17 // License along with this library; if not, write to the Free Software
18 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 //
20 // You can contact OPeNDAP, Inc. at PO Box 112, Saunderstown, RI. 02874-0112.
21 // You can contact The HDF Group, Inc. at 1800 South Oak Street,
22 // Suite 203, Champaign, IL 61820
23 
32 
33 #include "config_hdf5.h"
34 
35 #include <BESDebug.h>
36 #include "InternalErr.h"
37 #include "HDF5CFUInt64.h"
38 #include "h5common.h"
39 
40 using namespace std;
41 using namespace libdap;
42 
43 HDF5CFUInt64::HDF5CFUInt64(const string &n, const string &d) : UInt64(n, d)
44 {
45 }
46 
47 HDF5CFUInt64::HDF5CFUInt64(const string &n, const string &d,const string &d_f) : UInt64(n, d),filename(d_f)
48 {
49 }
50 HDF5CFUInt64::~HDF5CFUInt64()
51 {
52 }
53 BaseType *HDF5CFUInt64::ptr_duplicate()
54 {
55  return new HDF5CFUInt64(*this);
56 }
57 
58 bool HDF5CFUInt64::read()
59 {
60 
61  BESDEBUG("h5","Coming to HDF5CFUInt64 read "<<endl);
62 
63  if (read_p())
64  return true;
65 
66  hid_t file_id = H5Fopen(filename.c_str(),H5F_ACC_RDONLY,H5P_DEFAULT);
67  if(file_id < 0) {
68  throw InternalErr(__FILE__,__LINE__, "Fail to obtain the HDF5 file ID .");
69  }
70 
71  hid_t dset_id = -1;
72  dset_id = H5Dopen2(file_id,dataset().c_str(),H5P_DEFAULT);
73 
74  if(dset_id < 0) {
75  H5Fclose(file_id);
76  throw InternalErr(__FILE__,__LINE__, "Fail to obtain the dataset .");
77  }
78 
79  try {
80  dods_uint64 buf;
81  get_data(dset_id, (void *) &buf);
82 
83  set_read_p(true);
84  set_value(buf);
85 
86  // Release the handles.
87  if (H5Dclose(dset_id) < 0) {
88  throw InternalErr(__FILE__, __LINE__, "Unable to close the dset.");
89  }
90  H5Fclose(file_id);
91  }
92  catch(...) {
93  H5Dclose(dset_id);
94  H5Fclose(file_id);
95  throw;
96  }
97 
98  return true;
99 
100 }
101 
get_data
void get_data(hid_t dset, void *buf)
Definition: h5common.cc:50
libdap
Definition: BESDapFunctionResponseCache.h:35
HDF5CFUInt64
Definition: HDF5CFUInt64.h:41
HDF5CFUInt64.h
This class provides a way to map HDF5 64-bit unsigned integer to DAP4 UInt64 for the CF option.
h5common.h