public void unpack(ISOComponent c, InputStream in) throws IOException, ISOException {
if (!(c instanceof ISOField))
throw new ISOException(c.getClass().getName() + " is not an ISOField");
boolean endFound = false;
if (in.markSupported()) {
in.mark(getMaxPackedLength());
}
ByteBuffer buf = ByteBuffer.allocate(getMaxPackedLength());
for (int i = 0; i < getMaxPackedLength() && in.available() > 0; i++) {
byte dataByte = (byte) in.read();
if (dataByte == terminator) {
endFound = true;
break;
} else {
buf.put(dataByte);
}
}
if (endFound) {
byte[] data = byteBufferToBytes(buf);
c.setValue(data);
} else {
if (in.markSupported()) {
in.reset();
}
throw new ISOException("Terminating Backslash does not exist");
}
}
@Override
public int unpack(ISOComponent c, byte[] b, int offset) throws ISOException {
byte[] tagBytes = new byte[getMaxPackedLength()];
System.arraycopy(b, offset, tagBytes, 0, tagBytes.length);
c.setValue(ISOUtil.byte2hex(tagBytes));
return tagBytes.length;
}
/**
* @param c - the Component to unpack
* @param b - binary image
* @param offset - starting offset within the binary image
* @return consumed bytes
* @throws org.jpos.iso.ISOException
*/
public int unpack(ISOComponent c, byte[] b, int offset) throws ISOException {
if (!(c instanceof ISOField))
throw new ISOException(c.getClass().getName() + " is not an ISOField");
int length = -1;
for (int i = 0; i < getMaxPackedLength(); i++) {
byte dataByte = b[offset + i];
if (dataByte == terminator) {
length = i;
break;
}
}
if (length >= 0) {
byte[] value = new byte[length];
System.arraycopy(b, offset, value, 0, length);
c.setValue(value);
return length + 1;
} else {
throw new ISOException("Terminating Backslash does not exist");
}
}
