/**
* This method will return the buffer that contains whole CIMS object.
*
* @return A byte array containing whole CIMS object
*/
public ByteArray toByteArray() {
ByteArray buffer =
new ByteArray(
CimsObjectHeader.RECORD_LENGTH
+ CimsCodedDataHeader.RECORD_LENGTH
+ getLengthOfImageSegments());
updateCimsObjectHeader();
int lastSegmentCopiedOffset = 0;
// copy image segments to output buffer and
// update segment offsets and lengths for image segments in CIMS object header
for (int i = 0; i < segmentArray.length; i++) {
if (segmentArray[i] != null && segmentArray[i].length > 0) {
// segment offset
int segmentOffset =
CimsObjectHeader.RECORD_LENGTH
+ CimsCodedDataHeader.RECORD_LENGTH
+ lastSegmentCopiedOffset;
// copy segment array to output buffer
buffer.write(segmentArray[i], 0, segmentArray[i].length, segmentOffset);
cimsObjectHeader.setSegmentOffset(i + 1, segmentOffset);
cimsObjectHeader.setSegmentLength(i + 1, segmentArray[i].length);
lastSegmentCopiedOffset += segmentArray[i].length;
}
}
// copy last so pick up any updates to header during loop.
buffer.write(cimsObjectHeader.toByteArray(), 0, CimsObjectHeader.RECORD_LENGTH, 0);
buffer.write(
cimsCodedDataHeader.toByteArray(),
0,
CimsCodedDataHeader.RECORD_LENGTH,
CimsObjectHeader.RECORD_LENGTH);
return buffer;
}
/**
* Primary constructor for <code>ImageObject</code>. Will store the buffer reference and calculate
* the segment offsets and lengths for use in retrieving data for this object. It also stores all
* image segments so it can recreate original buffer.
*
* @param buffer The byte array containing the ImageObject values.
*/
public ImageObject(ByteArray buffer) {
byte[] cimsObjectHeaderArray = buffer.read(0, CimsObjectHeader.RECORD_LENGTH);
cimsObjectHeader = new CimsObjectHeader(cimsObjectHeaderArray);
// initialize coded data header from input buffer
int offset0 = cimsObjectHeader.getSegmentOffset(0);
int length0 = cimsObjectHeader.getSegmentLength(0);
byte[] cimsCodedDataHeaderArray = new byte[CimsCodedDataHeader.RECORD_LENGTH];
buffer.read(offset0, cimsObjectHeaderArray, 0, length0);
cimsCodedDataHeader = new CimsCodedDataHeader(cimsCodedDataHeaderArray);
// initialize segment array, i.e. load all images
for (int i = 0; i < segmentArray.length; i++) {
int segmentOffset = cimsObjectHeader.getSegmentOffset(i + 1);
int segmentLength = cimsObjectHeader.getSegmentLength(i + 1);
if (segmentLength > 0) {
segmentArray[i] = buffer.read(segmentOffset, segmentLength);
}
}
}
