bes Updated for version 3.20.10
HDF5Array.h
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1// This file is part of hdf5_handler a HDF5 file handler for the OPeNDAP
2// data server.
3
4// Author: Hyo-Kyung Lee <hyoklee@hdfgroup.org> and Muqun Yang
5// <myang6@hdfgroup.org>
6
7// Copyright (c) 2009-2016 The HDF Group, Inc. and OPeNDAP, Inc.
8//
9// This is free software; you can redistribute it and/or modify it under the
10// terms of the GNU Lesser General Public License as published by the Free
11// Software Foundation; either version 2.1 of the License, or (at your
12// option) any later version.
13//
14// This software is distributed in the hope that it will be useful, but
15// WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
16// or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
17// License for more details.
18//
19// You should have received a copy of the GNU Lesser General Public
20// License along with this library; if not, write to the Free Software
21// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22//
23// You can contact OPeNDAP, Inc. at PO Box 112, Saunderstown, RI. 02874-0112.
24// You can contact The HDF Group, Inc. at 1800 South Oak Street,
25// Suite 203, Champaign, IL 61820
26
27#ifndef _HDF5ARRAY_H
28#define _HDF5ARRAY_H
29
30#include <H5Ipublic.h>
31#include <H5Rpublic.h>
32
33#include <libdap/Array.h>
34
35#include "h5get.h"
36
37
49class HDF5Array:public libdap::Array {
50 private:
51 int d_num_dim;
52 int d_num_elm;
53
54 hsize_t d_memneed;
55 string var_path;
56
57 // Parse constraint expression and make HDF5 coordinate point location.
58 // return number of elements to read.
59 int format_constraint(int *cor, int *step, int *edg);
60
61 hid_t mkstr(int size, H5T_str_t pad);
62
63 bool m_array_of_structure(hid_t dsetid, std::vector<char>&values,bool has_values,int values_offset,int nelms,int* offset,int*count,int*step);
64 bool m_array_in_structure();
65 bool m_array_of_reference(hid_t dset_id,hid_t dtype_id);
66 bool m_array_of_reference_new_h5_apis(hid_t dset_id,hid_t dtype_id);
67 void m_intern_plain_array_data(char *convbuf,hid_t memtype);
68 void m_array_of_atomic(hid_t, hid_t,int,int*,int*,int*);
69
70 void do_array_read(hid_t dset_id,hid_t dtype_id,std::vector<char>&values,bool has_values,int values_offset,int nelms,int* offset,int* count, int* step);
71
72 bool do_h5_array_type_read(hid_t dsetid, hid_t memb_id,std::vector<char>&values,bool has_values,int values_offset, int at_nelms,int* at_offset,int*at_count,int* at_step);
73
74 inline int INDEX_nD_TO_1D (const std::vector < int > &dims,
75 const std::vector < int > &pos);
76 bool obtain_next_pos(std::vector<int>& pos, std::vector<int>&start,std::vector<int>&end,std::vector<int>&step,int rank_change);
77
78 template<typename T> int subset(
79 const T input[],
80 int rank,
81 std::vector<int> & dim,
82 int start[],
83 int stride[],
84 int edge[],
85 std::vector<T> *poutput,
86 std::vector<int>& pos,
87 int index);
88 friend class HDF5Structure;
89 public:
90
92 HDF5Array(const std::string & n, const std::string &d, libdap::BaseType * v);
93 virtual ~ HDF5Array();
94
100 virtual libdap::BaseType *ptr_duplicate();
101
103 virtual bool read();
104
106 friend std::string return_type(hid_t datatype);
107
109 void set_memneed(size_t need);
110
112 void set_numdim(int ndims);
113
115 void set_numelm(int nelms);
116
117 void set_varpath(const std::string vpath) { var_path = vpath;}
118 libdap::BaseType *h5dims_transform_to_dap4(libdap::D4Group *root,const std::vector<std::string> &dimpath);
119};
120
121#endif
friend std::string return_type(hid_t datatype)
See return_type function defined in h5dds.cc.
virtual libdap::BaseType * ptr_duplicate()
Definition: HDF5Array.cc:54
virtual bool read()
Reads HDF5 array data into local buffer.
Definition: HDF5Array.cc:115
void set_numdim(int ndims)
remembers number of dimensions of this array.
Definition: HDF5Array.cc:1737
HDF5Array(const std::string &n, const std::string &d, libdap::BaseType *v)
Constructor.
Definition: HDF5Array.cc:58
void set_numelm(int nelms)
remembers number of elements in this array.
Definition: HDF5Array.cc:1741
void set_memneed(size_t need)
remembers memory size needed.
Definition: HDF5Array.cc:1733