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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* All rights reserved. *
* *
* This file is part of HDF Products. The full HDF copyright *
* notice, including terms governing use, modification, and redistribution, *
* is contained in the file, COPYING. COPYING can be found at the root of *
* the source code distribution tree. You can also access it online at *
* https://www.hdfgroup.org/licenses. If you do not have access to the *
* file, you may request a copy from help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
import hdf.hdflib.HDFConstants;
import hdf.hdflib.HDFLibrary;
public class h4jex_AN_create_annotation {
private static String FILE_NAME = "h4jex_AN_create_annotation.hdf";
private static String VG_NAME = "AN Vgroup";
private static String FILE_LABEL_TXT = "General HDF objects";
private static String FILE_DESC_TXT = "This is an HDF file that contains general HDF objects";
private static String DATA_LABEL_TXT = "Common AN Vgroup";
private static String DATA_DESC_TXT = "This is a vgroup that is used to test data annotations";
public static void main(String args[]) throws Exception
{
//************************* Variable declaration **************************
long file_id; // HDF file identifier
long an_id; // AN interface identifier
long file_label_id; // file label identifier
long file_desc_id; // file description identifier
long data_label_id; // data label identifier
long data_desc_id; // data description identifier
long vgroup_id;
int vgroup_tag;
int vgroup_ref;
//********************** End of variable declaration **********************
// Create the HDF file.
try {
file_id = HDFLibrary.Hopen(FILE_NAME, HDFConstants.DFACC_CREATE);
}
catch (Exception e) {
e.printStackTrace();
System.err.println("Unable to open file " + FILE_NAME + "for writing.");
return;
}
// Initialize the AN interface.
try {
an_id = HDFLibrary.ANstart(file_id);
try {
// Create the file label.
file_label_id = HDFLibrary.ANcreatef(an_id, HDFConstants.AN_FILE_LABEL);
try {
// Write the annotations to the file label.
HDFLibrary.ANwriteann(file_label_id, FILE_LABEL_TXT, FILE_LABEL_TXT.length());
}
catch (Exception e) {
e.printStackTrace();
System.err.println("Failed to write label annotation.");
}
try {
// Create file description.
file_desc_id = HDFLibrary.ANcreatef(an_id, HDFConstants.AN_FILE_DESC);
try {
// Write the annotation to the file description.
HDFLibrary.ANwriteann(file_desc_id, FILE_DESC_TXT, FILE_DESC_TXT.length());
}
catch (Exception e) {
e.printStackTrace();
System.err.println("Failed to write description annotation.");
}
try {
// Create a vgroup in the V interface. Note that the vgroup's ref number
// is set to -1 for creating and the access mode is "w" for writing.
HDFLibrary.Vstart(file_id);
try {
vgroup_id = HDFLibrary.Vattach(file_id, -1, "w");
try {
HDFLibrary.Vsetname(vgroup_id, VG_NAME);
}
catch (Exception e) {
e.printStackTrace();
System.err.println("Could not name group.");
}
try {
// Obtain the tag and ref number of the vgroup for subsequent
// references.
vgroup_tag = HDFLibrary.VQuerytag(vgroup_id);
vgroup_ref = HDFLibrary.VQueryref(vgroup_id);
// Create the data label for the vgroup identified by its tag
// and ref number.
data_label_id = HDFLibrary.ANcreate(
an_id, (short)vgroup_tag, (short)vgroup_ref, HDFConstants.AN_DATA_LABEL);
try {
// Write the annotation text to the data label.
HDFLibrary.ANwriteann(data_label_id, DATA_LABEL_TXT,
DATA_LABEL_TXT.length());
}
catch (Exception e) {
e.printStackTrace();
System.err.println("Failed to write data label annotation.");
}
try {
// Create the data description for the vgroup identified by its tag
// and ref number.
data_desc_id =
HDFLibrary.ANcreate(an_id, (short)vgroup_tag, (short)vgroup_ref,
HDFConstants.AN_DATA_DESC);
try {
// Write the annotation text to the data description.
HDFLibrary.ANwriteann(data_desc_id, DATA_DESC_TXT,
DATA_DESC_TXT.length());
}
catch (Exception e) {
e.printStackTrace();
System.err.println("Failed to write data description annotation.");
}
HDFLibrary.ANendaccess(data_desc_id);
}
catch (Exception e) {
e.printStackTrace();
System.err.println("annot create a new data description annotation.");
}
HDFLibrary.ANendaccess(data_label_id);
}
catch (Exception e) {
e.printStackTrace();
System.err.println("Cannot create a new data label annotation.");
}
// Terminate access to the vgroup and to the V interface.
HDFLibrary.Vdetach(vgroup_id);
}
catch (Exception e) {
e.printStackTrace();
System.err.println("Could not attach to VGroup interface");
}
HDFLibrary.Vend(file_id);
}
catch (Exception e) {
e.printStackTrace();
System.err.println("Could not start VGroup interface");
}
HDFLibrary.ANendaccess(file_desc_id);
}
catch (Exception e) {
e.printStackTrace();
System.err.println("Cannot create a new file description annotation.");
}
HDFLibrary.ANendaccess(file_label_id);
}
catch (Exception e) {
e.printStackTrace();
System.err.println("Cannot create a new file label annotation.");
}
// Terminate access to the AN interface and close the HDF file.
HDFLibrary.ANend(an_id);
}
catch (Exception e) {
e.printStackTrace();
System.err.println("Cannot start annotation handling on the file " + FILE_NAME);
}
HDFLibrary.Hclose(file_id);
System.out.println("AN_create_annotation done");
}
}
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