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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 <LongBow/runtime.h>
#include <ccnx/common/ccnx_PayloadType.h>
#include <ccnx/common/internal/ccnx_ManifestInterface.h>
#include <ccnx/common/codec/schema_v1/ccnxCodecSchemaV1_TlvDictionary.h>
CCNxManifestInterface *
ccnxManifestInterface_GetInterface(const CCNxTlvDictionary *dictionary)
{
assertTrue(ccnxTlvDictionary_IsManifest(dictionary), "Expected a Manifest");
CCNxManifestInterface *impl = (CCNxManifestInterface *) ccnxTlvDictionary_GetMessageInterface(dictionary);
if (impl == NULL) {
// If we're here, we need to update the implementation pointer.
// Figure out what the typeImplementation should be, based on the attributes we know.
int schemaVersion = ccnxTlvDictionary_GetSchemaVersion(dictionary);
switch (schemaVersion) {
case CCNxTlvDictionary_SchemaVersion_V1:
impl = &CCNxManifestFacadeV1_Interface;
break;
default:
trapUnexpectedState("Unknown SchemaVersion encountered in ccnxInterestImplementation_GetImplementation()");
break;
}
if (impl == NULL) {
// The cast to (CCNxTlvDictionary *) is to break the const.
ccnxTlvDictionary_SetMessageInterface((CCNxTlvDictionary *) dictionary, (CCNxMessageInterface *) impl);
}
}
return impl;
}
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