HDFFV-10664 minimized dataset headers for java interface

5 files changed, 183 insertions, 2 deletions

diff --git a/java/src/hdf/hdf5lib/H5.java b/java/src/hdf/hdf5lib/H5.java
index e354207..deeda49 100644
--- a/java/src/hdf/hdf5lib/H5.java
+++ b/java/src/hdf/hdf5lib/H5.java
@@ -3229,6 +3229,34 @@ public class H5 implements java.io.Serializable {
     public synchronized static native void H5Fget_mdc_logging_status(long file_id, boolean[] mdc_logging_status)
             throws HDF5LibraryException, NullPointerException;
 
+    /**
+     * H5Fget_dset_no_attrs_hint gets the file-level setting to create minimized dataset object headers.
+     *
+     * @param file_id
+     *            IN: Identifier of the target file.
+     *
+     * @exception HDF5LibraryException
+     *                - Error from the HDF-5 Library.
+     **/
+    public synchronized static native boolean H5Fget_dset_no_attrs_hint(long file_id)
+            throws HDF5LibraryException;
+
+
+    /**
+     * H5Fset_dset_no_attrs_hint sets the file-level setting to create minimized dataset object headers.
+     *
+     * @param file_id
+     *            IN: Identifier of the target file.
+     *
+     * @param minimize
+     *          the minimize hint setting
+     *
+     * @exception HDF5LibraryException
+     *                - Error from the HDF-5 Library.
+     **/
+    public synchronized static native void H5Fset_dset_no_attrs_hint(long file_id, boolean minimize)
+            throws HDF5LibraryException;
+
     // /////// unimplemented ////////
     //  herr_t H5Fget_eoa(hid_t file_id, haddr_t *eoa);
     //  herr_t H5Fincrement_filesize(hid_t file_id, hsize_t increment);
@@ -6922,8 +6950,6 @@ public class H5 implements java.io.Serializable {
     public synchronized static native int H5Pset_fill_time(long plist_id, int fill_time) throws HDF5LibraryException,
     NullPointerException;
 
-    // /////// Dataset creation property list (DCPL) routines ///////
-
     /**
      * H5Pset_chunk_opts Sets the edge chunk option in a dataset creation property list.
      *
@@ -6952,6 +6978,36 @@ public class H5 implements java.io.Serializable {
      **/
     public synchronized static native int H5Pget_chunk_opts(long dcpl_id) throws HDF5LibraryException;
 
+    /**
+     * H5Pget_dset_no_attrs_hint accesses the flag for whether or not datasets created by the given dcpl
+     *     will be created with a "minimized" object header.
+     *
+     * @param dcpl_id
+     *            IN: Dataset creation property list
+     *
+     * @exception HDF5LibraryException
+     *                - Error from the HDF-5 Library.
+     **/
+    public synchronized static native boolean H5Pget_dset_no_attrs_hint(long dcpl_id)
+            throws HDF5LibraryException;
+
+
+    /**
+     * H5Pset_dset_no_attrs_hint sets the dcpl to minimize (or explicitly to not minimized) dataset object
+     *     headers upon creation.
+     *
+     * @param dcpl_id
+     *            IN: Dataset creation property list
+     *
+     * @param minimize
+     *          the minimize hint setting
+     *
+     * @exception HDF5LibraryException
+     *                - Error from the HDF-5 Library.
+     **/
+    public synchronized static native void H5Pset_dset_no_attrs_hint(long dcpl_id, boolean minimize)
+            throws HDF5LibraryException;
+
     // /////// Dataset access property list (DAPL) routines ///////
 
     /**
diff --git a/java/src/jni/h5fImp.c b/java/src/jni/h5fImp.c
index 248e654..7f10ca5 100644
--- a/java/src/jni/h5fImp.c
+++ b/java/src/jni/h5fImp.c
@@ -636,6 +636,50 @@ Java_hdf_hdf5lib_H5_H5Fget_1mdc_1logging_1status
     } /* end else */
 } /* end Java_hdf_hdf5lib_H5_H5Fget_1mdc_1logging_1status */
 
+/*
+ * Class:     hdf_hdf5lib_H5
+ * Method:    H5Fset_dset_no_attrs_hint
+ * Signature: (JZ)V
+ */
+JNIEXPORT void JNICALL
+Java_hdf_hdf5lib_H5_H5Fset_1dset_1no_1attrs_1hint
+(JNIEnv *env, jclass clss, jlong file_id, jboolean minimize)
+{
+    herr_t   retVal = -1;
+    hbool_t  minimize_val;
+
+    if (minimize == JNI_TRUE)
+        minimize_val = TRUE;
+    else
+        minimize_val = FALSE;
+
+    retVal = H5Fset_dset_no_attrs_hint((hid_t)file_id, (hbool_t)minimize_val);
+    if (retVal < 0)
+        h5libraryError(env);
+}
+
+/*
+ * Class:     hdf_hdf5lib_H5
+ * Method:    H5Fget_dset_no_attrs_hint
+ * Signature: (J)Z
+ */
+JNIEXPORT jboolean JNICALL
+Java_hdf_hdf5lib_H5_H5Fget_1dset_1no_1attrs_1hint
+(JNIEnv *env, jclass clss, jlong file_id)
+{
+    hbool_t    minimize = FALSE;
+    jboolean  bval = JNI_FALSE;
+
+    if (H5Fget_dset_no_attrs_hint((hid_t)file_id, (hbool_t *)&minimize) < 0) {
+        h5libraryError(env);
+    }
+    else {
+        if (minimize == TRUE)
+            bval =  JNI_TRUE;
+    } /* end else */
+
+    return bval;
+}
 
 
 #ifdef __cplusplus
diff --git a/java/src/jni/h5fImp.h b/java/src/jni/h5fImp.h
index af0fa1d..f1b4f04 100644
--- a/java/src/jni/h5fImp.h
+++ b/java/src/jni/h5fImp.h
@@ -255,6 +255,24 @@ JNIEXPORT void JNICALL
 Java_hdf_hdf5lib_H5_H5Fget_1mdc_1logging_1status
   (JNIEnv *, jclass, jlong, jbooleanArray);
 
+/*
+ * Class:     hdf_hdf5lib_H5
+ * Method:    H5Fset_dset_no_attrs_hint
+ * Signature: (JZ)V
+ */
+JNIEXPORT void JNICALL
+Java_hdf_hdf5lib_H5_H5Fset_1dset_1no_1attrs_1hint
+  (JNIEnv *, jclass, jlong, jboolean);
+
+/*
+ * Class:     hdf_hdf5lib_H5
+ * Method:    H5Fget_dset_no_attrs_hint
+ * Signature: (J)Z
+ */
+JNIEXPORT jboolean JNICALL
+Java_hdf_hdf5lib_H5_H5Fget_1dset_1no_1attrs_1hint
+  (JNIEnv *, jclass, jlong);
+
 #ifdef __cplusplus
 } /* end extern "C" */
 #endif /* __cplusplus */
diff --git a/java/src/jni/h5pImp.c b/java/src/jni/h5pImp.c
index 52008ce..19f9640 100644
--- a/java/src/jni/h5pImp.c
+++ b/java/src/jni/h5pImp.c
@@ -5946,6 +5946,51 @@ Java_hdf_hdf5lib_H5_H5Pget_1chunk_1opts
     return (jint)opts;
 } /* end Java_hdf_hdf5lib_H5_H5Pget_1chunk_1opts */
 
+/*
+ * Class:     hdf_hdf5lib_H5
+ * Method:    H5Pset_dset_no_attrs_hint
+ * Signature: (JZ)V
+ */
+JNIEXPORT void JNICALL
+Java_hdf_hdf5lib_H5_H5Pset_1dset_1no_1attrs_1hint
+(JNIEnv *env, jclass clss, jlong dcpl_id, jboolean minimize)
+{
+    herr_t   retVal = -1;
+    hbool_t  minimize_val;
+
+    if (minimize == JNI_TRUE)
+        minimize_val = TRUE;
+    else
+        minimize_val = FALSE;
+
+    retVal = H5Pset_dset_no_attrs_hint((hid_t)dcpl_id, (hbool_t)minimize_val);
+    if (retVal < 0)
+        h5libraryError(env);
+}
+
+/*
+ * Class:     hdf_hdf5lib_H5
+ * Method:    H5Pget_dset_no_attrs_hint
+ * Signature: (J)Z
+ */
+JNIEXPORT jboolean JNICALL
+Java_hdf_hdf5lib_H5_H5Pget_1dset_1no_1attrs_1hint
+(JNIEnv *env, jclass clss, jlong dcpl_id)
+{
+    hbool_t    minimize = FALSE;
+    jboolean  bval = JNI_FALSE;
+
+    if (H5Pget_dset_no_attrs_hint((hid_t)dcpl_id, (hbool_t *)&minimize) < 0) {
+        h5libraryError(env);
+    }
+    else {
+        if (minimize == TRUE)
+            bval =  JNI_TRUE;
+    } /* end else */
+
+    return bval;
+}
+
 #ifdef __cplusplus
 } /* end extern "C" */
 #endif /* __cplusplus */
diff --git a/java/src/jni/h5pImp.h b/java/src/jni/h5pImp.h
index 1d12e3d..0a603f7 100644
--- a/java/src/jni/h5pImp.h
+++ b/java/src/jni/h5pImp.h
@@ -1614,6 +1614,24 @@ JNIEXPORT jint JNICALL
 Java_hdf_hdf5lib_H5_H5Pget_1chunk_1opts
 (JNIEnv *, jclass, jlong);
 
+/*
+ * Class:     hdf_hdf5lib_H5
+ * Method:    H5Pset_dset_no_attrs_hint
+ * Signature: (JZ)V
+ */
+JNIEXPORT void JNICALL
+Java_hdf_hdf5lib_H5_H5Pset_1dset_1no_1attrs_1hint
+  (JNIEnv *, jclass, jlong, jboolean);
+
+/*
+ * Class:     hdf_hdf5lib_H5
+ * Method:    H5Pget_dset_no_attrs_hint
+ * Signature: (J)Z
+ */
+JNIEXPORT jboolean JNICALL
+Java_hdf_hdf5lib_H5_H5Pget_1dset_1no_1attrs_1hint
+  (JNIEnv *, jclass, jlong);
+
 
 #ifdef __cplusplus
 } /* end extern "C" */