C# Interest.hasLink方法代码示例

        ////////////////////////////////////
        // Tests from ndn-cxx interest.t.cpp
        ////////////////////////////////////
        public void testInterestLinkObject()
        {
            Link link1 = new Link();
            link1.setName(new Name("test"));
            link1.addDelegation(10, new Name("/test1"));
            link1.addDelegation(20, new Name("/test2"));
            link1.addDelegation(100, new Name("/test3"));

            try {
                keyChain.sign(link1, certificateName);
            } catch (SecurityException ex) {
                Assert.Fail(ex.Message);
            }

            Blob linkEncoding = link1.wireEncode();

            Interest interestA = new Interest();
            Link link2 = null;
            try {
                interestA.setLinkWireEncoding(linkEncoding);
                link2 = interestA.getLink();
            } catch (Exception ex_0) {
                Assert.Fail(ex_0.Message);
            }

            Assert.AssertTrue(link2 != null);
            Name name = link2.getName();
            Assert.AssertEquals(new Name("test"), name);

            DelegationSet delegations = link2.getDelegations();
            for (int i = 0; i < delegations.size(); ++i) {
                if (i == 0) {
                    Assert.AssertEquals(10, delegations.get(i).getPreference());
                    Assert.AssertEquals(new Name("/test1"), delegations.get(i).getName());
                }
                if (i == 1) {
                    Assert.AssertEquals(20, delegations.get(i).getPreference());
                    Assert.AssertEquals(new Name("/test2"), delegations.get(i).getName());
                }
                if (i == 2) {
                    Assert.AssertEquals(100, delegations.get(i).getPreference());
                    Assert.AssertEquals(new Name("/test3"), delegations.get(i).getName());
                }
            }

            interestA.setLinkWireEncoding(new Blob(LINK, false));
            Link link3 = null;
            try {
                link3 = interestA.getLink();
            } catch (Exception ex_1) {
                Assert.Fail(ex_1.Message);
            }
            Assert.AssertEquals(2, link3.getDelegations().size());

            interestA.unsetLink();
            Assert.AssertEquals(false, interestA.hasLink());
        }

        /// <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);
        }