bes Updated for version 3.20.13
HDF5CFUInt32.cc
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1// This file is part of the hdf5_handler implementing for the CF-compliant
2// Copyright (c) 2011-2016 The HDF Group, Inc. and OPeNDAP, Inc.
3//
4// This is free software; you can redistribute it and/or modify it under the
5// terms of the GNU Lesser General Public License as published by the Free
6// Software Foundation; either version 2.1 of the License, or (at your
7// option) any later version.
8//
9// This software is distributed in the hope that it will be useful, but
10// WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
11// or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
12// License for more details.
13//
14// You should have received a copy of the GNU Lesser General Public
15// License along with this library; if not, write to the Free Software
16// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17//
18// You can contact OPeNDAP, Inc. at PO Box 112, Saunderstown, RI. 02874-0112.
19// You can contact The HDF Group, Inc. at 1800 South Oak Street,
20// Suite 203, Champaign, IL 61820
21
30
31#include "config_hdf5.h"
32
33
34#include <libdap/InternalErr.h>
35#include "HDF5CFUInt32.h"
36#include <BESDebug.h>
37#include "h5common.h"
38
39using namespace std;
40using namespace libdap;
41
42HDF5CFUInt32::HDF5CFUInt32(const string &n, const string &d) : UInt32(n, d)
43{
44}
45
46HDF5CFUInt32::HDF5CFUInt32(const string &n, const string &d,const string &d_f) : UInt32(n, d), filename(d_f)
47{
48}
49
50BaseType *HDF5CFUInt32::ptr_duplicate()
51{
52 return new HDF5CFUInt32(*this);
53}
54
55bool HDF5CFUInt32::read()
56{
57 BESDEBUG("h5","Coming to HDF5CFUInt32 read "<<endl);
58
59 if (read_p())
60 return true;
61
62 hid_t file_id = H5Fopen(filename.c_str(),H5F_ACC_RDONLY,H5P_DEFAULT);
63 if(file_id < 0) {
64 throw InternalErr(__FILE__,__LINE__, "Fail to obtain the HDF5 file ID .");
65 }
66
67 hid_t dset_id = -1;
68 dset_id = H5Dopen2(file_id,dataset().c_str(),H5P_DEFAULT);
69
70 if(dset_id < 0) {
71 H5Fclose(file_id);
72 throw InternalErr(__FILE__,__LINE__, "Fail to obtain the dataset .");
73 }
74
75 try {
76 dods_uint32 buf;
77 get_data(dset_id, (void *) &buf);
78
79 set_read_p(true);
80 set_value(buf);
81
82 // Release the handles.
83 if (H5Dclose(dset_id) < 0) {
84 throw InternalErr(__FILE__, __LINE__, "Unable to close the dset.");
85 }
86 H5Fclose(file_id);
87 }
88 catch(...) {
89 H5Dclose(dset_id);
90 H5Fclose(file_id);
91 throw;
92 }
93
94 return true;
95
96
97}
98
99
This class provides a way to map HDF5 unsigned 32-bit integer to DAP uint32 for the CF option.
void get_data(hid_t dset, void *buf)
Definition: h5common.cc:50