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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "serializablearray.h"
#include <vespa/document/util/serializableexceptions.h>
#include <vespa/document/util/bytebuffer.h>
#include <vespa/vespalib/stllike/hash_map.hpp>
#include <algorithm>
#include <cassert>
#include <vespa/log/log.h>
LOG_SETUP(".document.serializable-array");
using std::vector;
using vespalib::make_string;
namespace document {
namespace serializablearray {
using BufferMapT = vespalib::hash_map<int, ByteBuffer>;
class BufferMap : public BufferMapT {
public:
using BufferMapT::BufferMapT;
};
}
void
SerializableArray::set(EntryMap entries, ByteBuffer buffer)
{
_entries = std::move(entries);
_uncompSerData = std::move(buffer);
}
SerializableArray::SerializableArray() = default;
SerializableArray::SerializableArray(SerializableArray &&) noexcept = default;
SerializableArray& SerializableArray::operator=(SerializableArray &&) noexcept = default;
SerializableArray::~SerializableArray() = default;
namespace {
template <typename T>
T &
ensure(std::unique_ptr<T> &owned) {
if (!owned) {
owned = std::make_unique<T>();
}
return *owned;
}
}
SerializableArray::SerializableArray(const SerializableArray& rhs)
: _entries(rhs._entries),
_uncompSerData(rhs._uncompSerData)
{
for (size_t i(0); i < _entries.size(); i++) {
Entry & e(_entries[i]);
if (e.hasBuffer()) {
// Pointing to a buffer in the _owned structure.
ByteBuffer buf(ByteBuffer::copyBuffer(e.getBuffer(&_uncompSerData), e.size()));
e.setBuffer(buf.getBuffer());
ensure(_owned)[e.id()] = std::move(buf);
} else {
// If not it is relative to the buffer _uncompSerData, and hence it is valid as is.
}
}
}
SerializableArray &
SerializableArray::operator=(const SerializableArray &rhs)
{
if (this != &rhs) {
*this = SerializableArray(rhs);
}
return *this;
}
void SerializableArray::clear()
{
_entries.clear();
_uncompSerData = ByteBuffer(nullptr, 0);
}
void
SerializableArray::set(int id, ByteBuffer buffer)
{
Entry e(id, buffer.getRemaining(), buffer.getBuffer());
assert(buffer.getRemaining() < 0x80000000ul);
ensure(_owned)[id] = std::move(buffer);
auto it = find(id);
if (it == _entries.end()) {
_entries.push_back(e);
} else {
*it = e;
}
}
void SerializableArray::set(int id, const char* value, int len)
{
set(id, ByteBuffer::copyBuffer(value,len));
}
SerializableArray::EntryMap::const_iterator
SerializableArray::find(int id) const
{
return std::find_if(_entries.begin(), _entries.end(), [id](const auto& e){ return e.id() == id; });
}
SerializableArray::EntryMap::iterator
SerializableArray::find(int id)
{
return std::find_if(_entries.begin(), _entries.end(), [id](const auto& e){ return e.id() == id; });
}
bool
SerializableArray::has(int id) const
{
return (find(id) != _entries.end());
}
vespalib::ConstBufferRef
SerializableArray::get(int id) const
{
vespalib::ConstBufferRef buf;
auto found = find(id);
if (found != _entries.end()) {
const Entry& entry = *found;
buf = vespalib::ConstBufferRef(entry.getBuffer(&_uncompSerData), entry.size());
}
return buf;
}
void
SerializableArray::clear(int id)
{
auto it = find(id);
if (it != _entries.end()) {
_entries.erase(it);
}
}
const char *
SerializableArray::Entry::getBuffer(const ByteBuffer * readOnlyBuffer) const {
return hasBuffer() ? _data._buffer : readOnlyBuffer->getBuffer() + getOffset();
}
} // document
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