Is there a Java parser for BER-TLV?

Question

I\'m new to Java, so I would like to use the standard solution for, I think, the standard task. The length of tags and values ​​are not known.

Answer 1

I made a simple parser based on the information provided here: http://www.codeproject.com/Articles/669147/Simple-TLV-Parser

I don't know if this code support all the standard, but it works for me.

public static Map parseTLV(String tlv) {
    if (tlv == null || tlv.length()%2!=0) {
        throw new RuntimeException("Invalid tlv, null or odd length");
    }
    HashMap hashMap = new HashMap();
    for (int i=0; i 127) {
                // more than 1 byte for lenth
                int bytesLength = length-128;
                len = tlv.substring(i, i=i+(bytesLength*2));
                length = Integer.parseInt(len,16);
            }
            length*=2;

            String value = tlv.substring(i, i=i+length);
            //System.out.println(key+" = "+value);
            hashMap.put(key, value);
        } catch (NumberFormatException e) {
            throw new RuntimeException("Error parsing number",e);
        } catch (IndexOutOfBoundsException e) {
            throw new RuntimeException("Error processing field",e);
        }
    }

    return hashMap;
}