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#include "gov_ornl_ccs_AdiosVarinfo.h"
#include <adios_read.h>
#include <iostream>
/*
* Class: gov_ornl_ccs_AdiosVarinfo
* Method: adios_inq_var
* Signature: (JJLjava/lang/String;)I
*/
JNIEXPORT jint JNICALL Java_gov_ornl_ccs_AdiosVarinfo_adios_1inq_1var
(JNIEnv * env, jobject obj, jlong gp, jstring varname)
{
const char *str;
jboolean isCopy;
jclass cls;
jfieldID fid;
ADIOS_VARINFO* vp;
str = env->GetStringUTFChars(varname, &isCopy);
if (str == NULL) return -1; /* OutOfMemoryError already thrown */
vp = adios_inq_var((ADIOS_GROUP *)gp, str);
env->ReleaseStringUTFChars(varname, str);
cls = env->GetObjectClass(obj);
if (cls == NULL) {
return -1;
}
fid = env->GetFieldID(cls, "vp", "J");
env->SetLongField(obj, fid, (jlong)vp);
fid = env->GetFieldID(cls, "grpid", "I");
env->SetIntField(obj, fid, vp->grpid);
fid = env->GetFieldID(cls, "varid", "I");
env->SetIntField(obj, fid, vp->varid);
fid = env->GetFieldID(cls, "type", "I");
env->SetIntField(obj, fid, vp->type);
fid = env->GetFieldID(cls, "ndim", "I");
env->SetIntField(obj, fid, vp->ndim);
fid = env->GetFieldID(cls, "timedim", "I");
env->SetIntField(obj, fid, vp->timedim);
jlongArray dims = env->NewLongArray(vp->ndim);
env->SetLongArrayRegion(dims, 0, vp->ndim, (jlong *) vp->dims);
fid = env->GetFieldID(cls, "dims", "[J");
env->SetObjectField(obj, fid, dims);
if (vp->ndim == 0) {
int size = adios_type_size(vp->type, NULL);
jbyteArray value = env->NewByteArray(size);
env->SetByteArrayRegion(value, 0, size, (jbyte *) vp->value);
fid = env->GetFieldID(cls, "value", "[B");
env->SetObjectField(obj, fid, value);
}
return 0;
}
/*
* Class: gov_ornl_ccs_AdiosVarinfo
* Method: adios_free_varinfo
* Signature: ()I
*/
JNIEXPORT jint JNICALL Java_gov_ornl_ccs_AdiosVarinfo_adios_1free_1varinfo
(JNIEnv * env, jobject obj)
{
jclass cls;
jfieldID fid;
jlong vp;
cls = env->GetObjectClass(obj);
fid = env->GetFieldID(cls, "vp", "J");
vp = env->GetLongField(obj, fid);
adios_free_varinfo((ADIOS_VARINFO*)vp);
env->SetLongField(obj, fid, 0);
return 0;
}
/*
* Class: gov_ornl_ccs_AdiosVarinfo
* Method: adios_read_var_byid
* Signature: (JI[J[J)[D
*/
JNIEXPORT jdoubleArray JNICALL Java_gov_ornl_ccs_AdiosVarinfo_adios_1read_1var_1byid
(JNIEnv * env, jobject obj, jlong gp, jint varid, jlongArray start, jlongArray count)
{
jint len = env->GetArrayLength(count);
if (len != env->GetArrayLength(start))
return NULL;
jlong *startarr = env->GetLongArrayElements(start, NULL);
jlong *countarr = env->GetLongArrayElements(count, NULL);
jlong ncount = 1;
for (jint i = 0; i < len; i++)
ncount *= countarr[i];
jdoubleArray result = env->NewDoubleArray(ncount);
jdouble *data = env->GetDoubleArrayElements(result, NULL);
int64_t nbytes = adios_read_var_byid((ADIOS_GROUP*)gp, (int) varid, (uint64_t *)startarr, (uint64_t *)countarr, (void *)data);
env->ReleaseLongArrayElements(start, startarr, 0);
env->ReleaseLongArrayElements(count, countarr, 0);
env->ReleaseDoubleArrayElements(result, data, 0);
return result;
}
#define READ_ARRAY(JTYPE, CTYPE) \
/* std::cout << __FUNCTION__ << "..." << std::endl; */ \
int result; \
jint len = env->GetArrayLength(count); \
if (len != env->GetArrayLength(start)) return 0; \
jlong *startarr = env->GetLongArrayElements(start, NULL); \
jlong *countarr = env->GetLongArrayElements(count, NULL); \
jlong ncount = 1; \
for (jint i = 0; i < len; i++) ncount *= countarr[i]; \
JTYPE *data = env->Get ##CTYPE ##ArrayElements(val, NULL); \
result = adios_read_var_byid((ADIOS_GROUP*)gp, (int) varid, (uint64_t *)startarr, (uint64_t *)countarr, (void *)data); \
env->ReleaseLongArrayElements(start, startarr, 0); \
env->ReleaseLongArrayElements(count, countarr, 0); \
env->Release ##CTYPE ##ArrayElements(val, data, 0); \
return result;
#define FUNC_READ_ARRAY(FNAME, JTYPE, CTYPE) \
JNIEXPORT jint JNICALL FNAME \
(JNIEnv * env, jobject obj, jlong gp, jint varid, jlongArray start, jlongArray count, JTYPE ##Array val) \
{ \
READ_ARRAY(JTYPE, CTYPE); \
}
/*
* Class: gov_ornl_ccs_AdiosVarinfo
* Method: adios_read
* Signature: (JI[J[J[B)I
*/
FUNC_READ_ARRAY (
Java_gov_ornl_ccs_AdiosVarinfo_adios_1read__JI_3J_3J_3B,
jbyte,
Byte)
FUNC_READ_ARRAY (
Java_gov_ornl_ccs_AdiosVarinfo_adios_1read__JI_3J_3J_3I,
jint,
Int)
FUNC_READ_ARRAY (
Java_gov_ornl_ccs_AdiosVarinfo_adios_1read__JI_3J_3J_3J,
jlong,
Long)
FUNC_READ_ARRAY (
Java_gov_ornl_ccs_AdiosVarinfo_adios_1read__JI_3J_3J_3F,
jfloat,
Float)
FUNC_READ_ARRAY (
Java_gov_ornl_ccs_AdiosVarinfo_adios_1read__JI_3J_3J_3D,
jdouble,
Double)
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