protected DataItem getDataItem(int[] iStartPos, int[] iShape) throws NexusException {
DataItem dsData = readDataInfo();
NexusNode nnNode = getCurrentPath().getCurrentNode();
String sNodeClass = nnNode.getClassName();
if (!sNodeClass.equals("NXtechnical_data")) {
dsData.setStart(iStartPos);
dsData.setSlabSize(iShape);
int[] iDataInf = new int[] {dsData.getSize().length, dsData.getType()};
// We want a iNbDim dimension array of data, so dimensions are the
// iNbDim last ones of the opened DataItem
int[] length = {1};
for (int iDim : iShape) {
length[0] *= iDim;
}
// Prepare an array data
Object oOutput;
Object oInput = defineArrayObject(iDataInf[1], length);
// Set data into temporary array having a single raw shape
openFile();
getNexusFile().getslab(iStartPos, iShape, oInput);
closeFile();
if (m_bResultAsSingleRaw) {
oOutput = oInput;
} else {
// Changing the array into matrix (having iDimSize dimensions'
// sizes) instead of single row
oOutput = defineArrayObject(iDataInf[1], iShape);
}
// Converting byte[] to string in case of NX_CHAR data
if (iDataInf[1] == NexusFile.NX_CHAR) {
oOutput = new String((byte[]) oOutput).toCharArray();
}
// Setting DataItem's data
if (iDataInf[1] == NexusFile.NX_BOOLEAN) {
oOutput = convertArray(new DataItem(oOutput));
}
dsData.setData(new SoftReference<Object>(oOutput));
}
dsData.isSingleRawArray(m_bResultAsSingleRaw);
return dsData;
}
/**
* readDataInfo Return the DataItem fitting the opened DataItem, without main data. The DataItem
* is initialized with dimsize, type... but the DataItem isn't read.
*/
public DataItem readDataInfo() throws NexusException {
NexusNode nnNode = getCurrentPath().getCurrentNode();
if (!nnNode.isGroup() && nnNode.getClassName().equals("NXtechnical_data")) {
return getDataItem();
}
// Get infos on DataItem (data type, rank, dimsize)
int[] iNodeSize = new int[RANK_MAX]; // whole DataItem dimension's sizes
int[] iDimSize; // data dimension's sizes
int[] iDataInf = new int[2]; // iDataInf[0] = DataItem rank ;
// iDataInf[1]= data type
openFile();
getNexusFile().getinfo(iNodeSize, iDataInf);
// Initialize dimension's sizes
iDimSize = new int[iDataInf[0]];
System.arraycopy(iNodeSize, 0, iDimSize, 0, iDataInf[0]);
// Check if DataItem is linked to an external DataItem
DataItem dsData = new DataItem();
dsData.setType(iDataInf[1]);
dsData.setSize(iDimSize);
dsData.setSlabSize(iDimSize);
dsData.setStart(new int[iDimSize.length]);
dsData.setNodeName(getCurrentPath().getDataItemName());
dsData.setPath(getCurrentPath().clone());
dsData.isSingleRawArray(m_bResultAsSingleRaw);
if (dsData.getType() == NexusFile.NX_CHAR) {
dsData.setData(readNodeValue(iDataInf, dsData.getSize(), iDimSize.length));
}
closeFile();
// Initialize DataItem's attributes
getDataItemAttribute(dsData);
return dsData;
}
