/**
* add all fields present on received parameter to this ISOMsg<br>
* please note that received fields take precedence over existing ones (simplifying card agent
* message creation and template handling)
*
* @param m ISOMsg to merge
*/
public void merge(ISOMsg m) {
for (int i = 0; i <= m.getMaxField(); i++)
try {
if (m.hasField(i)) set(m.getComponent(i));
} catch (ISOException e) {
// should never happen
}
}
/**
* Check if a field indicated by a fpath is present
*
* @param fpath dot-separated field path (i.e. 63.2)
*/
public boolean hasField(String fpath) throws ISOException {
StringTokenizer st = new StringTokenizer(fpath, ".");
ISOMsg m = this;
for (; ; ) {
int fldno = Integer.parseInt(st.nextToken());
if (st.hasMoreTokens()) {
Object obj = m.getValue(fldno);
if (obj instanceof ISOMsg) {
m = (ISOMsg) obj;
} else {
// No real way of checking for further subfields, return false, perhaps should be
// ISOException?
return false;
}
} else {
return m.hasField(fldno);
}
}
}