1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
|
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* Copyright by the Board of Trustees of the University of Illinois. *
* All rights reserved. *
* *
* This file is part of HDF5. The full HDF5 copyright notice, including *
* terms governing use, modification, and redistribution, is contained in *
* the COPYING file, which can be found at the root of the source code *
* distribution tree, or in https://www.hdfgroup.org/licenses. *
* If you do not have access to either file, you may request a copy from *
* help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/************************************************************
Creating a file and print the storage layout.
************************************************************/
package examples.groups;
import hdf.hdf5lib.H5;
import hdf.hdf5lib.HDF5Constants;
import hdf.hdf5lib.structs.H5G_info_t;
import java.util.EnumSet;
import java.util.HashMap;
import java.util.Map;
public class H5Ex_G_Compact {
private static final String FILE1 = "H5Ex_G_Compact1.h5";
private static final String FILE2 = "H5Ex_G_Compact2.h5";
private static final String GROUP = "G1";
enum H5G_storage {
H5G_STORAGE_TYPE_UNKNOWN(-1),
H5G_STORAGE_TYPE_SYMBOL_TABLE(0),
H5G_STORAGE_TYPE_COMPACT(1),
H5G_STORAGE_TYPE_DENSE(2);
private static final Map<Integer, H5G_storage> lookup = new HashMap<Integer, H5G_storage>();
static {
for (H5G_storage s : EnumSet.allOf(H5G_storage.class))
lookup.put(s.getCode(), s);
}
private int code;
H5G_storage(int layout_type) {
this.code = layout_type;
}
public int getCode() {
return this.code;
}
public static H5G_storage get(int code) {
return lookup.get(code);
}
}
public static void CreateGroup() {
long file_id = HDF5Constants.H5I_INVALID_HID;
long group_id = HDF5Constants.H5I_INVALID_HID;
long fapl_id = HDF5Constants.H5I_INVALID_HID;
H5G_info_t ginfo;
long size;
// Create file 1. This file will use original format groups.
try {
file_id = H5.H5Fcreate (FILE1, HDF5Constants.H5F_ACC_TRUNC, HDF5Constants.H5P_DEFAULT, HDF5Constants.H5P_DEFAULT);
}
catch (Exception e) {
e.printStackTrace();
}
// Create a group in the file1.
try {
if(file_id >= 0)
group_id = H5.H5Gcreate(file_id, GROUP, HDF5Constants.H5P_DEFAULT, HDF5Constants.H5P_DEFAULT, HDF5Constants.H5P_DEFAULT);
}
catch (Exception e) {
e.printStackTrace();
}
// Obtain the group info and print the group storage type.
try {
if(group_id >= 0) {
ginfo = H5.H5Gget_info(group_id);
System.out.print("Group storage type for " + FILE1 + " is: ");
switch (H5G_storage.get(ginfo.storage_type)) {
case H5G_STORAGE_TYPE_COMPACT:
System.out.println("H5G_STORAGE_TYPE_COMPACT"); // New compact format
break;
case H5G_STORAGE_TYPE_DENSE:
System.out.println("H5G_STORAGE_TYPE_DENSE"); // New dense (indexed) format
break;
case H5G_STORAGE_TYPE_SYMBOL_TABLE:
System.out.println("H5G_STORAGE_TYPE_SYMBOL_TABLE"); // Original format
break;
case H5G_STORAGE_TYPE_UNKNOWN:
System.out.println("H5G_STORAGE_TYPE_UNKNOWN");
break;
default:
System.out.println("Storage Type Invalid");
break;
}
}
}
catch (Exception e) {
e.printStackTrace();
}
// Close the group.
try {
if (group_id >= 0)
H5.H5Gclose(group_id);
}
catch (Exception e) {
e.printStackTrace();
}
// close the file 1.
try {
if (file_id >= 0)
H5.H5Fclose(file_id);
}
catch (Exception e) {
e.printStackTrace();
}
// Re-open file 1. Need to get the correct file size.
try {
file_id = H5.H5Fopen(FILE1, HDF5Constants.H5F_ACC_RDONLY, HDF5Constants.H5P_DEFAULT);
}
catch (Exception e) {
e.printStackTrace();
}
// Obtain and print the file size.
try {
if (file_id >= 0) {
size = H5.H5Fget_filesize(file_id);
System.out.println("File size for " + FILE1 + " is: " + size + " bytes");
}
}
catch (Exception e) {
e.printStackTrace();
}
// Close FILE1.
try {
if (file_id >= 0)
H5.H5Fclose(file_id);
}
catch (Exception e) {
e.printStackTrace();
}
// Set file access property list to allow the latest file format.
// This will allow the library to create new compact format groups.
try {
fapl_id = H5.H5Pcreate(HDF5Constants.H5P_FILE_ACCESS);
if (fapl_id >= 0)
H5.H5Pset_libver_bounds(fapl_id, HDF5Constants.H5F_LIBVER_LATEST, HDF5Constants.H5F_LIBVER_LATEST);
}
catch (Exception e) {
e.printStackTrace();
}
System.out.println();
// Create file 2 using the new file access property list.
try {
file_id = H5.H5Fcreate(FILE2, HDF5Constants.H5F_ACC_TRUNC, HDF5Constants.H5P_DEFAULT, fapl_id);
}
catch (Exception e) {
e.printStackTrace();
}
// Create group in file2.
try {
if(file_id >= 0)
group_id = H5.H5Gcreate(file_id, GROUP, HDF5Constants.H5P_DEFAULT, HDF5Constants.H5P_DEFAULT, HDF5Constants.H5P_DEFAULT);
}
catch (Exception e) {
e.printStackTrace();
}
// Obtain the group info and print the group storage type.
try {
if (group_id >= 0) {
ginfo = H5.H5Gget_info(group_id);
System.out.print("Group storage type for " + FILE2 + " is: ");
switch (H5G_storage.get(ginfo.storage_type)) {
case H5G_STORAGE_TYPE_COMPACT:
System.out.println("H5G_STORAGE_TYPE_COMPACT"); // New compact format
break;
case H5G_STORAGE_TYPE_DENSE:
System.out.println("H5G_STORAGE_TYPE_DENSE"); // New dense (indexed) format
break;
case H5G_STORAGE_TYPE_SYMBOL_TABLE:
System.out.println("H5G_STORAGE_TYPE_SYMBOL_TABLE"); // Original format
break;
case H5G_STORAGE_TYPE_UNKNOWN:
System.out.println("H5G_STORAGE_TYPE_UNKNOWN");
break;
default:
System.out.println("Storage Type Invalid");
break;
}
}
}
catch (Exception e) {
e.printStackTrace();
}
// Close the group.
try {
if (group_id >= 0)
H5.H5Gclose(group_id);
}
catch (Exception e) {
e.printStackTrace();
}
// close the file 2.
try {
if (file_id >= 0)
H5.H5Fclose(file_id);
}
catch (Exception e) {
e.printStackTrace();
}
// Re-open file 2. Needed to get the correct file size.
try {
file_id = H5.H5Fopen(FILE2, HDF5Constants.H5F_ACC_RDONLY, fapl_id);
}
catch (Exception e) {
e.printStackTrace();
}
// Obtain and print the file size.
try {
if (file_id >= 0) {
size = H5.H5Fget_filesize(file_id);
System.out.println("File size for " + FILE2 + " is: " + size + " bytes");
}
}
catch (Exception e) {
e.printStackTrace();
}
// Close FILE2.
try {
if (file_id >= 0)
H5.H5Fclose(file_id);
}
catch (Exception e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
H5Ex_G_Compact.CreateGroup();
}
}
|
