bes  Updated for version 3.20.6
HDF5CFFloat64.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) 2011-2016 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 "InternalErr.h"
36 #include "HDF5CFFloat64.h"
37 #include <BESDebug.h>
38 #include "h5common.h"
39 
40 using namespace std;
41 using namespace libdap;
42 
43 HDF5CFFloat64::HDF5CFFloat64(const string &n, const string &d):Float64(n, d)
44 {
45 }
46 
47 HDF5CFFloat64::HDF5CFFloat64(const string &n, const string &d,const string &d_f) : Float64(n, d),filename(d_f)
48 {
49 }
50 
51 
52 HDF5CFFloat64::~HDF5CFFloat64()
53 {
54 }
55 BaseType *HDF5CFFloat64::ptr_duplicate()
56 {
57  return new HDF5CFFloat64(*this);
58 }
59 
60 bool HDF5CFFloat64::read()
61 {
62  BESDEBUG("h5","Coming to HDF5CFFloat64 read "<<endl);
63 
64  if (read_p())
65  return true;
66 
67  hid_t file_id = H5Fopen(filename.c_str(),H5F_ACC_RDONLY,H5P_DEFAULT);
68  if(file_id < 0) {
69  throw InternalErr(__FILE__,__LINE__, "Fail to obtain the HDF5 file ID .");
70  }
71 
72  hid_t dset_id = -1;
73  dset_id = H5Dopen2(file_id,dataset().c_str(),H5P_DEFAULT);
74 
75  if(dset_id < 0) {
76  H5Fclose(file_id);
77  throw InternalErr(__FILE__,__LINE__, "Fail to obtain the dataset .");
78  }
79 
80  try {
81  dods_float64 buf;
82 
83  get_data(dset_id, (void *) &buf);
84 
85  set_read_p(true);
86  set_value(buf);
87 
88  // Release the handles.
89  if (H5Dclose(dset_id) < 0) {
90  throw InternalErr(__FILE__, __LINE__, "Unable to close the dset.");
91  }
92  H5Fclose(file_id);
93  }
94  catch(...) {
95  H5Dclose(dset_id);
96  H5Fclose(file_id);
97  throw;
98  }
99 
100  return true;
101 
102 }
get_data
void get_data(hid_t dset, void *buf)
Definition: h5common.cc:50
HDF5CFFloat64
Definition: HDF5CFFloat64.h:41
libdap
Definition: BESDapFunctionResponseCache.h:35
HDF5CFFloat64.h
This class provides a way to map HDF5 64-bit floating-point(double) to DAP 64-bit floating-point for ...
h5common.h