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/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 "Descriptor.h"
namespace qpid {
namespace amqp {
Descriptor::Descriptor(uint64_t code) : type(NUMERIC) { value.code = code; }
Descriptor::Descriptor(const CharSequence& symbol) : type(SYMBOLIC) { value.symbol = symbol; }
bool Descriptor::match(const std::string& symbol, uint64_t code) const
{
switch (type) {
case SYMBOLIC:
return symbol.compare(0, symbol.size(), value.symbol.data, value.symbol.size) == 0;
case NUMERIC:
return code == value.code;
}
return false;
}
size_t Descriptor::getSize() const
{
size_t size = 1/*descriptor indicator*/ + 1/*type code*/;
switch (type) {
case Descriptor::NUMERIC:
if (value.code > 0) size += value.code < 256 ? 1/*encode as byte*/ : 8/*encode as long*/;
//else value will be indicated through ULONG_ZERO typecode
break;
case Descriptor::SYMBOLIC:
size += value.symbol.size < 256? 1/*size field is a byte*/ : 4/*size field is an int*/;
size += value.symbol.size;
break;
}
return size;
}
std::ostream& operator<<(std::ostream& os, const Descriptor& d)
{
switch (d.type) {
case Descriptor::SYMBOLIC:
if (d.value.symbol.data && d.value.symbol.size) os << std::string(d.value.symbol.data, d.value.symbol.size);
else os << "null";
break;
case Descriptor::NUMERIC:
os << "0x" << std::hex << d.value.code;
break;
}
return os;
}
}} // namespace qpid::amqp
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