Skip to content

ISOMsg: strict path readers, dataset element writers, dataset-aware clone #792

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
ar merged 2 commits into from
Oct 9, 2026
Merged

ISOMsg: strict path readers, dataset element writers, dataset-aware clone #792

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
1338db9
DatasetElement: share isConstructedTag between packagers
ar Oct 9, 2026
d339ee8
ISOMsg: strict path readers, dataset element writers, dataset-aware c…
ar Oct 9, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
15 changes: 15 additions & 0 deletions jpos/src/main/java/org/jpos/iso/DatasetElement.java
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -81,6 +81,21 @@ public boolean isConstructed() {
return constructed;
}

/**
* Indicates whether a BER-TLV tag is constructed, that is, whether bit 6
* of its first byte is set.
*
* @param tag TLV tag, for example {@code 0x71} or {@code 0x9F26}
* @return {@code true} for constructed tags
*/
public static boolean isConstructedTag(int tag) {
String hexTag = Integer.toHexString(tag);
if ((hexTag.length() & 0x01) == 1)
hexTag = "0" + hexTag;
byte[] tagBytes = ISOUtil.hex2byte(hexTag);
return (tagBytes[0] & 0x20) == 0x20;
}

/**
* Returns the component value.
*
Expand Down
Loading
Loading