/// <summary>
/// Create a Link, copying values from the other Data object. If the content
/// can be decoded using the default wire encoding, then update the list
/// of delegations.
/// </summary>
///
/// <param name="data">The Data object to copy values from.</param>
public Link(Data data)
: base(data)
{
this.delegations_ = new DelegationSet();
if (!getContent().isNull()) {
try {
delegations_.wireDecode(getContent());
getMetaInfo().setType(net.named_data.jndn.ContentType.LINK);
} catch (EncodingException ex) {
delegations_.clear();
}
}
}
/// <summary>
/// Decode input as a sequence of NDN-TLV Delegation and set the fields of the
/// delegationSet object. Note that the sequence of Delegation does not have an
/// outer TLV type and length because it is intended to use the type and length
/// of a Data packet's Content. This ignores any elements after the sequence
/// of Delegation and before input.limit().
/// </summary>
///
/// <param name="delegationSet">The DelegationSet object whose fields are updated.</param>
/// <param name="input"></param>
/// <param name="copy">unchanged while the Blob values are used.</param>
/// <exception cref="EncodingException">For invalid encoding.</exception>
public override void decodeDelegationSet(DelegationSet delegationSet,
ByteBuffer input, bool copy)
{
TlvDecoder decoder = new TlvDecoder(input);
int endOffset = input.limit();
delegationSet.clear();
while (decoder.getOffset() < endOffset) {
decoder.readTypeAndLength(net.named_data.jndn.encoding.tlv.Tlv.Link_Delegation);
int preference = (int) decoder
.readNonNegativeIntegerTlv(net.named_data.jndn.encoding.tlv.Tlv.Link_Preference);
Name name = new Name();
decodeName(name, new int[1], new int[1], decoder, copy);
// Add unsorted to preserve the order so that Interest selected delegation
// index will work.
delegationSet.addUnsorted(preference, name);
}
}