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hdf5/java/src-jni/jni/h5gImp.c
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Allen Byrne b754dcb8f2 Move Java wrappers to FFM using jextract and java 25 (#5957) 
FFM build requires Java 25, Jextract 25.
Generates FFM bindings during configure.
JNI is default when the requirements are not met or can be forced.
Presets added for maven and FFM - JNI is default selection.
Enhanced Maven options will work with either JNI or FFM
New Workflows for testing and maven uploads.
Extensive documentation changes for java.
2025-11-04 14:03:06 -06:00

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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* 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 LICENSE 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. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#include <jni.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "hdf5.h"
#include "h5util.h"
#include "h5gImp.h"
/*
* Pointer to the JNI's Virtual Machine; used for callback functions.
*/
/* extern JavaVM *jvm; */
/*
* Class: hdf_hdf5lib_H5
* Method: _H5Gclose
* Signature: (J)I
*/
JNIEXPORT jint JNICALL
Java_hdf_hdf5lib_H5__1H5Gclose(JNIEnv *env, jclass clss, jlong group_id)
{
herr_t retVal = FAIL;
UNUSED(clss);
if ((retVal = H5Gclose((hid_t)group_id)) < 0)
H5_LIBRARY_ERROR(ENVONLY);
done:
return (jint)retVal;
} /* end Java_hdf_hdf5lib_H5__1H5Gclose */
/*
* Create a java object of hdf.h5.structs.H5G_info_t
* public class H5G_info_t {
* public H5G_STORAGE_TYPE storage_type; // Type of storage for links in group
* public long nlinks; // Number of links in group
* public long max_corder; // Current max. creation order value for group
* public int mounted; // Whether group has a file mounted on it
* }
*
*/
jobject
create_H5G_info_t(JNIEnv *env, H5G_info_t group_info)
{
jfieldID fid_storage_type, fid_nlinks, fid_max_corder, fid_mounted;
jboolean jmounted;
jclass cls;
jint storage_type;
jobject obj = NULL;
if (NULL == (cls = ENVPTR->FindClass(ENVONLY, "hdf/hdf5lib/structs/H5G_info_t")))
CHECK_JNI_EXCEPTION(ENVONLY, JNI_FALSE);
if (NULL == (obj = ENVPTR->AllocObject(ENVONLY, cls)))
CHECK_JNI_EXCEPTION(ENVONLY, JNI_FALSE);
if (NULL == (fid_storage_type = ENVPTR->GetFieldID(ENVONLY, cls, "storage_type", "I")))
CHECK_JNI_EXCEPTION(ENVONLY, JNI_FALSE);
if (NULL == (fid_nlinks = ENVPTR->GetFieldID(ENVONLY, cls, "nlinks", "J")))
CHECK_JNI_EXCEPTION(ENVONLY, JNI_FALSE);
if (NULL == (fid_max_corder = ENVPTR->GetFieldID(ENVONLY, cls, "max_corder", "J")))
CHECK_JNI_EXCEPTION(ENVONLY, JNI_FALSE);
if (NULL == (fid_mounted = ENVPTR->GetFieldID(ENVONLY, cls, "mounted", "Z")))
CHECK_JNI_EXCEPTION(ENVONLY, JNI_FALSE);
jmounted = (group_info.mounted == 0) ? JNI_FALSE : JNI_TRUE;
storage_type = (jint)group_info.storage_type;
ENVPTR->SetIntField(ENVONLY, obj, fid_storage_type, (jint)storage_type);
CHECK_JNI_EXCEPTION(ENVONLY, JNI_FALSE);
ENVPTR->SetLongField(ENVONLY, obj, fid_nlinks, (jlong)group_info.nlinks);
CHECK_JNI_EXCEPTION(ENVONLY, JNI_FALSE);
ENVPTR->SetLongField(ENVONLY, obj, fid_max_corder, (jlong)group_info.max_corder);
CHECK_JNI_EXCEPTION(ENVONLY, JNI_FALSE);
ENVPTR->SetBooleanField(ENVONLY, obj, fid_mounted, jmounted);
CHECK_JNI_EXCEPTION(ENVONLY, JNI_FALSE);
done:
return obj;
} /* end create_H5G_info_t */
/*
* Class: hdf_hdf5lib_H5
* Method: _H5Gcreate2
* Signature: (JLjava/lang/String;JJJ)J
*/
JNIEXPORT jlong JNICALL
Java_hdf_hdf5lib_H5__1H5Gcreate2(JNIEnv *env, jclass clss, jlong loc_id, jstring name, jlong link_plist_id,
jlong create_plist_id, jlong access_plist_id)
{
const char *grpName = NULL;
hid_t group_id = H5I_INVALID_HID;
UNUSED(clss);
if (NULL == name)
H5_NULL_ARGUMENT_ERROR(ENVONLY, "H5Gcreate2: group name is NULL");
PIN_JAVA_STRING(ENVONLY, name, grpName, NULL, "H5Gcreate2: group name not pinned");
if ((group_id = H5Gcreate2((hid_t)loc_id, grpName, (hid_t)link_plist_id, (hid_t)create_plist_id,
(hid_t)access_plist_id)) < 0)
H5_LIBRARY_ERROR(ENVONLY);
done:
if (grpName)
UNPIN_JAVA_STRING(ENVONLY, name, grpName);
return (jlong)group_id;
} /* end Java_hdf_hdf5lib_H5__1H5Gcreate2 */
/*
* Class: hdf_hdf5lib_H5
* Method: _H5Gcreate_anon
* Signature: (JJJ)J
*/
JNIEXPORT jlong JNICALL
Java_hdf_hdf5lib_H5__1H5Gcreate_1anon(JNIEnv *env, jclass clss, jlong loc_id, jlong gcpl_id, jlong gapl_id)
{
hid_t group_id = H5I_INVALID_HID;
UNUSED(clss);
if ((group_id = H5Gcreate_anon((hid_t)loc_id, (hid_t)gcpl_id, (hid_t)gapl_id)) < 0)
H5_LIBRARY_ERROR(ENVONLY);
done:
return (jlong)group_id;
} /* end Java_hdf_hdf5lib_H5__1H5Gcreate_1anon */
/*
* Class: hdf_hdf5lib_H5
* Method: _H5Gopen2
* Signature: (JLjava/lang/String;J)J
*/
JNIEXPORT jlong JNICALL
Java_hdf_hdf5lib_H5__1H5Gopen2(JNIEnv *env, jclass clss, jlong loc_id, jstring name, jlong access_plist_id)
{
const char *grpName = NULL;
hid_t group_id = H5I_INVALID_HID;
UNUSED(clss);
if (NULL == name)
H5_NULL_ARGUMENT_ERROR(ENVONLY, "H5Gopen2: group name is NULL");
PIN_JAVA_STRING(ENVONLY, name, grpName, NULL, "H5Gopen2: group name not pinned");
if ((group_id = H5Gopen2((hid_t)loc_id, grpName, (hid_t)access_plist_id)) < 0)
H5_LIBRARY_ERROR(ENVONLY);
done:
if (grpName)
UNPIN_JAVA_STRING(ENVONLY, name, grpName);
return (jlong)group_id;
} /* end Java_hdf_hdf5lib_H5__1H5Gopen2 */
/*
* Class: hdf_hdf5lib_H5
* Method: H5Gget_create_plist
* Signature: (J)J
*/
JNIEXPORT jlong JNICALL
Java_hdf_hdf5lib_H5_H5Gget_1create_1plist(JNIEnv *env, jclass clss, jlong loc_id)
{
hid_t plist_id = H5I_INVALID_HID;
UNUSED(clss);
if ((plist_id = H5Gget_create_plist((hid_t)loc_id)) < 0)
H5_LIBRARY_ERROR(ENVONLY);
done:
return (jlong)plist_id;
} /* end Java_hdf_hdf5lib_H5_H5Gget_1create_1plist */
/*
* Class: hdf_hdf5lib_H5
* Method: H5Gget_info
* Signature: (J)Lhdf/hdf5lib/structs/H5G_info_t;
*/
JNIEXPORT jobject JNICALL
Java_hdf_hdf5lib_H5_H5Gget_1info(JNIEnv *env, jclass clss, jlong loc_id)
{
H5G_info_t group_info;
jobject obj = NULL;
UNUSED(clss);
if (H5Gget_info((hid_t)loc_id, &group_info) < 0)
H5_LIBRARY_ERROR(ENVONLY);
if (NULL == (obj = create_H5G_info_t(env, group_info)))
H5_JNI_FATAL_ERROR(ENVONLY, "H5Gget_info: unable to create H5G_info_t object");
done:
return obj;
} /* end Java_hdf_hdf5lib_H5_H5Gget_1info */
/*
* Class: hdf_hdf5lib_H5
* Method: H5Gget_info_by_name
* Signature: (JLjava/lang/String;J)Lhdf/hdf5lib/structs/H5G_info_t;
*/
JNIEXPORT jobject JNICALL
Java_hdf_hdf5lib_H5_H5Gget_1info_1by_1name(JNIEnv *env, jclass clss, jlong loc_id, jstring name,
jlong lapl_id)
{
H5G_info_t group_info;
const char *grpName = NULL;
jobject obj = NULL;
herr_t ret_val = FAIL;
UNUSED(clss);
if (NULL == name)
H5_NULL_ARGUMENT_ERROR(ENVONLY, "H5Gget_info_by_name: group name is NULL");
PIN_JAVA_STRING(ENVONLY, name, grpName, NULL, "H5Gget_info_by_name: group name not pinned");
if ((ret_val = H5Gget_info_by_name((hid_t)loc_id, grpName, &group_info, (hid_t)lapl_id)) < 0)
H5_LIBRARY_ERROR(ENVONLY);
if (NULL == (obj = create_H5G_info_t(env, group_info))) {
CHECK_JNI_EXCEPTION(ENVONLY, JNI_TRUE);
H5_JNI_FATAL_ERROR(ENVONLY, "H5Gget_info_by_name: unable to create H5G_info_t object");
}
done:
if (grpName)
UNPIN_JAVA_STRING(ENVONLY, name, grpName);
return obj;
} /* end Java_hdf_hdf5lib_H5_H5Gget_1info_1by_1name */
/*
* Class: hdf_hdf5lib_H5
* Method: H5Gget_info_by_idx
* Signature: (JLjava/lang/String;IIJJ)Lhdf/hdf5lib/structs/H5G_info_t;
*/
JNIEXPORT jobject JNICALL
Java_hdf_hdf5lib_H5_H5Gget_1info_1by_1idx(JNIEnv *env, jclass clss, jlong loc_id, jstring name,
jint index_type, jint order, jlong n, jlong lapl_id)
{
H5_iter_order_t corder = (H5_iter_order_t)order;
H5_index_t cindex_type = (H5_index_t)index_type;
H5G_info_t group_info;
const char *grpName = NULL;
jobject obj = NULL;
herr_t ret_val = FAIL;
UNUSED(clss);
if (NULL == name)
H5_NULL_ARGUMENT_ERROR(ENVONLY, "H5Gget_info_by_idx: group name is NULL");
PIN_JAVA_STRING(ENVONLY, name, grpName, NULL, "H5Gget_info_by_idx: group name not pinned");
if ((ret_val = H5Gget_info_by_idx((hid_t)loc_id, grpName, cindex_type, corder, (hsize_t)n, &group_info,
(hid_t)lapl_id)) < 0)
H5_LIBRARY_ERROR(ENVONLY);
if (NULL == (obj = create_H5G_info_t(env, group_info))) {
CHECK_JNI_EXCEPTION(ENVONLY, JNI_TRUE);
H5_JNI_FATAL_ERROR(ENVONLY, "H5Gget_info_by_idx: unable to create H5G_info_t object");
}
done:
if (grpName)
UNPIN_JAVA_STRING(ENVONLY, name, grpName);
return obj;
} /* end Java_hdf_hdf5lib_H5_H5Gget_1info_1by_1idx */
/*
* Class: hdf_hdf5lib_H5
* Method: H5Gflush
* Signature: (J)V
*/
JNIEXPORT void JNICALL
Java_hdf_hdf5lib_H5_H5Gflush(JNIEnv *env, jclass clss, jlong loc_id)
{
UNUSED(clss);
if (H5Gflush((hid_t)loc_id) < 0)
H5_LIBRARY_ERROR(ENVONLY);
done:
return;
} /* end Java_hdf_hdf5lib_H5_H5Gflush */
/*
* Class: hdf_hdf5lib_H5
* Method: H5Grefresh
* Signature: (J)V
*/
JNIEXPORT void JNICALL
Java_hdf_hdf5lib_H5_H5Grefresh(JNIEnv *env, jclass clss, jlong loc_id)
{
UNUSED(clss);
if (H5Grefresh((hid_t)loc_id) < 0)
H5_LIBRARY_ERROR(ENVONLY);
done:
return;
} /* end Java_hdf_hdf5lib_H5_H5Grefresh */
#ifdef __cplusplus
} /* end extern "C" */
#endif /* __cplusplus */
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