/** returns current location pointer and sets to new value */
public void movePointer(final long pointer) {
try {
// make sure inside file
if (pointer > pdf_datafile.length()) {
if (LogWriter.isOutput()) {
LogWriter.writeLog("Attempting to access ref outside file");
}
// throw new PdfException("Exception moving file pointer - ref outside file");
} else {
pdf_datafile.seek(pointer);
}
} catch (final Exception e) {
if (LogWriter.isOutput()) {
LogWriter.writeLog("Exception " + e + " moving pointer to " + pointer + " in file.");
}
}
}
byte[] getBytes(final long start, final int count) {
final byte[] buffer = new byte[count];
if (start >= 0) {
try {
pdf_datafile.seek(start);
pdf_datafile.read(buffer); // get next chars
} catch (final IOException e) {
// tell user and log
if (LogWriter.isOutput()) {
LogWriter.writeLog("Exception: " + e.getMessage());
}
//
}
}
return buffer;
}
