public void testInterestSelectedDelegation()
{
Link link = new Link();
link.setName(new Name("test"));
link.addDelegation(10, new Name("/test1"));
link.addDelegation(20, new Name("/test2"));
link.addDelegation(100, new Name("/test3"));
try {
keyChain.sign(link, certificateName);
} catch (SecurityException ex) {
Assert.Fail(ex.Message);
}
Blob linkEncoding = link.wireEncode();
Interest interestA = new Interest();
interestA.setLinkWireEncoding(linkEncoding);
Assert.AssertTrue(interestA.getSelectedDelegationIndex() < 0);
interestA.setSelectedDelegationIndex(link.getDelegations().find(
new Name("test2")));
Assert.AssertTrue(interestA.getSelectedDelegationIndex() >= 0);
Link link2 = null;
try {
link2 = interestA.getLink();
} catch (Exception ex_0) {
Assert.Fail(ex_0.Message);
}
Assert.AssertEquals(
new Name("test2"),
link2.getDelegations()
.get(interestA.getSelectedDelegationIndex()).getName());
interestA.setSelectedDelegationIndex(-1);
Assert.AssertTrue(interestA.getSelectedDelegationIndex() < 0);
}
/// <summary>
/// Decode input as an interest in NDN-TLV and set the fields of the interest
/// object.
/// </summary>
///
/// <param name="interest">The Interest object whose fields are updated.</param>
/// <param name="input"></param>
/// <param name="signedPortionBeginOffset">name component and ends just before the final name component (which is assumed to be a signature for a signed interest).</param>
/// <param name="signedPortionEndOffset">name component and ends just before the final name component (which is assumed to be a signature for a signed interest).</param>
/// <param name="copy">unchanged while the Blob values are used.</param>
/// <exception cref="EncodingException">For invalid encoding.</exception>
public override void decodeInterest(Interest interest, ByteBuffer input,
int[] signedPortionBeginOffset, int[] signedPortionEndOffset,
bool copy)
{
TlvDecoder decoder = new TlvDecoder(input);
int endOffset = decoder.readNestedTlvsStart(net.named_data.jndn.encoding.tlv.Tlv.Interest);
decodeName(interest.getName(), signedPortionBeginOffset,
signedPortionEndOffset, decoder, copy);
if (decoder.peekType(net.named_data.jndn.encoding.tlv.Tlv.Selectors, endOffset))
decodeSelectors(interest, decoder, copy);
// Require a Nonce, but don't force it to be 4 bytes.
ByteBuffer nonce = decoder.readBlobTlv(net.named_data.jndn.encoding.tlv.Tlv.Nonce);
interest.setInterestLifetimeMilliseconds(decoder
.readOptionalNonNegativeIntegerTlv(net.named_data.jndn.encoding.tlv.Tlv.InterestLifetime,
endOffset));
if (decoder.peekType(net.named_data.jndn.encoding.tlv.Tlv.Data, endOffset)) {
// Get the bytes of the Link TLV.
int linkBeginOffset = decoder.getOffset();
int linkEndOffset = decoder.readNestedTlvsStart(net.named_data.jndn.encoding.tlv.Tlv.Data);
decoder.seek(linkEndOffset);
interest.setLinkWireEncoding(
new Blob(decoder.getSlice(linkBeginOffset, linkEndOffset),
copy), this);
} else
interest.unsetLink();
interest.setSelectedDelegationIndex((int) decoder
.readOptionalNonNegativeIntegerTlv(net.named_data.jndn.encoding.tlv.Tlv.SelectedDelegation,
endOffset));
if (interest.getSelectedDelegationIndex() >= 0 && !interest.hasLink())
throw new EncodingException(
"Interest has a selected delegation, but no link object");
// Set the nonce last because setting other interest fields clears it.
interest.setNonce(new Blob(nonce, copy));
decoder.finishNestedTlvs(endOffset);
}