1 // ******************************************************************************
2 //
3 // Title: Force Field X.
4 // Description: Force Field X - Software for Molecular Biophysics.
5 // Copyright: Copyright (c) Michael J. Schnieders 2001-2023.
6 //
7 // This file is part of Force Field X.
8 //
9 // Force Field X is free software; you can redistribute it and/or modify it
10 // under the terms of the GNU General Public License version 3 as published by
11 // the Free Software Foundation.
12 //
13 // Force Field X is distributed in the hope that it will be useful, but WITHOUT
14 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
15 // FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
16 // details.
17 //
18 // You should have received a copy of the GNU General Public License along with
19 // Force Field X; if not, write to the Free Software Foundation, Inc., 59 Temple
20 // Place, Suite 330, Boston, MA 02111-1307 USA
21 //
22 // Linking this library statically or dynamically with other modules is making a
23 // combined work based on this library. Thus, the terms and conditions of the
24 // GNU General Public License cover the whole combination.
25 //
26 // As a special exception, the copyright holders of this library give you
27 // permission to link this library with independent modules to produce an
28 // executable, regardless of the license terms of these independent modules, and
29 // to copy and distribute the resulting executable under terms of your choice,
30 // provided that you also meet, for each linked independent module, the terms
31 // and conditions of the license of that module. An independent module is a
32 // module which is not derived from or based on this library. If you modify this
33 // library, you may extend this exception to your version of the library, but
34 // you are not obligated to do so. If you do not wish to do so, delete this
35 // exception statement from your version.
36 //
37 // ******************************************************************************
38 package ffx.potential.openmm;
39
40 import com.sun.jna.ptr.PointerByReference;
41
42 import static edu.uiowa.jopenmm.OpenMMLibrary.OpenMM_IntArray_append;
43 import static edu.uiowa.jopenmm.OpenMMLibrary.OpenMM_IntArray_create;
44 import static edu.uiowa.jopenmm.OpenMMLibrary.OpenMM_IntArray_destroy;
45 import static edu.uiowa.jopenmm.OpenMMLibrary.OpenMM_IntArray_resize;
46 import static edu.uiowa.jopenmm.OpenMMLibrary.OpenMM_IntArray_set;
47
48 /**
49 * OpenMM IntArray wrapper.
50 */
51 public class OpenMMIntArray {
52
53 private final PointerByReference intArrayPointer;
54
55 /**
56 * Constructor.
57 *
58 * @param size The size of the array.
59 */
60 public OpenMMIntArray(int size) {
61 intArrayPointer = OpenMM_IntArray_create(size);
62 }
63
64 /**
65 * Append a int value to the array.
66 *
67 * @param value The value to append.
68 */
69 public void append(int value) {
70 OpenMM_IntArray_append(intArrayPointer, value);
71 }
72
73 /**
74 * Set a value in the array.
75 *
76 * @param index The index.
77 * @param value The value.
78 */
79 public void set(int index, int value) {
80 OpenMM_IntArray_set(intArrayPointer, index, value);
81 }
82
83 /**
84 * Destroy the array.
85 */
86 public void destroy() {
87 OpenMM_IntArray_destroy(intArrayPointer);
88 }
89
90 /**
91 * Resize the array.
92 *
93 * @param size The new size.
94 */
95 public void resize(int size) {
96 OpenMM_IntArray_resize(intArrayPointer, size);
97 }
98
99 /**
100 * Get the pointer to the array.
101 *
102 * @return The pointer.
103 */
104 public PointerByReference getPointer() {
105 return intArrayPointer;
106 }
107
108 }