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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 <FieldTable.h>
#include <QpidError.h>
#include <Buffer.h>
#include <Value.h>
#include <assert.h>
namespace qpid {
namespace framing {
FieldTable::~FieldTable() {}
u_int32_t FieldTable::size() const {
u_int32_t len(4);
for(ValueMap::const_iterator i = values.begin(); i != values.end(); ++i) {
// 2 = shortstr_len_byyte + type_char_byte
len += 2 + (i->first).size() + (i->second)->size();
}
return len;
}
int FieldTable::count() const {
return values.size();
}
namespace
{
std::ostream& operator<<(std::ostream& out, const FieldTable::ValueMap::value_type& i) {
return out << i.first << ":" << *i.second;
}
}
std::ostream& operator<<(std::ostream& out, const FieldTable& t) {
out << "{";
FieldTable::ValueMap::const_iterator i = t.getMap().begin();
if (i != t.getMap().end()) out << *i++;
while (i != t.getMap().end())
{
out << "," << *i++;
}
return out << "}";
}
void FieldTable::setString(const std::string& name, const std::string& value){
values[name] = ValuePtr(new StringValue(value));
}
void FieldTable::setInt(const std::string& name, int value){
values[name] = ValuePtr(new IntegerValue(value));
}
void FieldTable::setTimestamp(const std::string& name, u_int64_t value){
values[name] = ValuePtr(new TimeValue(value));
}
void FieldTable::setTable(const std::string& name, const FieldTable& value){
values[name] = ValuePtr(new FieldTableValue(value));
}
namespace {
template <class T> T default_value() { return T(); }
template <> int default_value<int>() { return 0; }
template <> u_int64_t default_value<u_int64_t>() { return 0; }
}
template <class T>
T FieldTable::getValue(const std::string& name) const
{
ValueMap::const_iterator i = values.find(name);
if (i == values.end()) return default_value<T>();
const ValueOps<T> *vt = dynamic_cast<const ValueOps<T>*>(i->second.get());
return vt->getValue();
}
std::string FieldTable::getString(const std::string& name) const {
return getValue<std::string>(name);
}
int FieldTable::getInt(const std::string& name) const {
return getValue<int>(name);
}
u_int64_t FieldTable::getTimestamp(const std::string& name) const {
return getValue<u_int64_t>(name);
}
void FieldTable::getTable(const std::string& name, FieldTable& value) const {
value = getValue<FieldTable>(name);
}
void FieldTable::encode(Buffer& buffer) const{
buffer.putLong(size() - 4);
for (ValueMap::const_iterator i = values.begin(); i!=values.end(); ++i) {
buffer.putShortString(i->first);
buffer.putOctet(i->second->getType());
i->second->encode(buffer);
}
}
void FieldTable::decode(Buffer& buffer){
u_int32_t len = buffer.getLong();
u_int32_t available = buffer.available();
if (available < len)
THROW_QPID_ERROR(FRAMING_ERROR, "Not enough data for field table.");
u_int32_t leftover = available - len;
while(buffer.available() > leftover){
std::string name;
buffer.getShortString(name);
std::auto_ptr<Value> value(Value::decode_value(buffer));
values[name] = ValuePtr(value.release());
}
}
bool FieldTable::operator==(const FieldTable& x) const {
if (values.size() != x.values.size()) return false;
for (ValueMap::const_iterator i = values.begin(); i != values.end(); ++i) {
ValueMap::const_iterator j = x.values.find(i->first);
if (j == x.values.end()) return false;
if (*(i->second) != *(j->second)) return false;
}
return true;
}
void FieldTable::erase(const std::string& name)
{
values.erase(values.find(name));
}
}
}
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