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/*
* Copyright (c) 2017 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <LongBow/runtime.h>
#include <parc/algol/parc_Memory.h>
#include <parc/algol/parc_Object.h>
#include <parc/algol/parc_Buffer.h>
#include <ccnx/common/codec/schema_v1/ccnxCodecSchemaV1_NameCodec.h>
#include <ccnx/common/codec/schema_v1/ccnxCodecSchemaV1_NameSegmentCodec.h>
size_t
ccnxCodecSchemaV1NameCodec_Encode(CCNxCodecTlvEncoder *encoder, uint16_t type, const CCNxName *name)
{
assertNotNull(encoder, "Parameter encoder must be non-null");
assertNotNull(name, "Parameter name must be non-null");
size_t containerPosition = ccnxCodecTlvEncoder_Position(encoder);
size_t containerLength = ccnxCodecTlvEncoder_AppendContainer(encoder, type, 0);
size_t segmentCount = ccnxName_GetSegmentCount(name);
size_t innerLength = 0;
for (int i = 0; i < segmentCount; i++) {
CCNxNameSegment *segment = ccnxName_GetSegment(name, i);
innerLength += ccnxCodecSchemaV1NameSegmentCodec_Encode(encoder, segment);
}
// now go back and fixup the container's length
ccnxCodecTlvEncoder_SetContainerLength(encoder, containerPosition, innerLength);
return containerLength + innerLength;
}
CCNxName *
ccnxCodecSchemaV1NameCodec_Decode(CCNxCodecTlvDecoder *decoder, uint16_t type)
{
CCNxName *name = NULL;
if (ccnxCodecTlvDecoder_EnsureRemaining(decoder, 4)) {
uint16_t tlvtype = ccnxCodecTlvDecoder_PeekType(decoder);
if (tlvtype == type) {
// call just for the side-effect of advancing the buffer
(void) ccnxCodecTlvDecoder_GetType(decoder);
uint16_t length = ccnxCodecTlvDecoder_GetLength(decoder);
name = ccnxCodecSchemaV1NameCodec_DecodeValue(decoder, length);
}
}
return name;
}
CCNxName *
ccnxCodecSchemaV1NameCodec_DecodeValue(CCNxCodecTlvDecoder *decoder, uint16_t length)
{
CCNxName *name = NULL;
if (ccnxCodecTlvDecoder_EnsureRemaining(decoder, length)) {
name = ccnxName_Create();
size_t nameEnd = ccnxCodecTlvDecoder_Position(decoder) + length;
while (ccnxCodecTlvDecoder_Position(decoder) < nameEnd) {
CCNxNameSegment *segment = ccnxCodecSchemaV1NameSegmentCodec_Decode(decoder);
ccnxName_Append(name, segment);
ccnxNameSegment_Release(&segment);
}
}
return name;
}
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