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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 "BlobEncoder.h"
#include <qpid/Exception.h>
#include <qpid/broker/Persistable.h>
#include <qpid/broker/PersistableMessage.h>
#include <boost/intrusive_ptr.hpp>
#include <memory.h>
namespace qpid {
namespace store {
namespace ms_sql {
template <class ITEM> void
BlobEncoder::encode(const ITEM &item)
{
SAFEARRAYBOUND bound[1] = {0, 0};
bound[0].cElements = item.encodedSize();
blob = SafeArrayCreate(VT_UI1, 1, bound);
if (S_OK != SafeArrayLock(blob)) {
SafeArrayDestroy(blob);
blob = 0;
throw qpid::Exception("Error locking blob area for persistable item");
}
try {
qpid::framing::Buffer buff((char *)blob->pvData, bound[0].cElements);
item.encode(buff);
}
catch(...) {
SafeArrayUnlock(blob);
SafeArrayDestroy(blob);
blob = 0;
throw;
}
this->vt = VT_ARRAY | VT_UI1;
this->parray = blob;
SafeArrayUnlock(blob);
}
template <> void
BlobEncoder::encode(const boost::intrusive_ptr<qpid::broker::PersistableMessage> &item)
{
// NOTE! If this code changes, verify the recovery code in MessageRecordset
SAFEARRAYBOUND bound[1] = {0, 0};
bound[0].cElements = item->encodedSize() + sizeof(uint32_t);
blob = SafeArrayCreate(VT_UI1, 1, bound);
if (S_OK != SafeArrayLock(blob)) {
SafeArrayDestroy(blob);
blob = 0;
throw qpid::Exception("Error locking blob area for message");
}
try {
uint32_t headerSize = item->encodedHeaderSize();
qpid::framing::Buffer buff((char *)blob->pvData, bound[0].cElements);
buff.putLong(headerSize);
item->encode(buff);
}
catch(...) {
SafeArrayUnlock(blob);
SafeArrayDestroy(blob);
blob = 0;
throw;
}
this->vt = VT_ARRAY | VT_UI1;
this->parray = blob;
SafeArrayUnlock(blob);
}
template <> void
BlobEncoder::encode(const std::string &item)
{
SAFEARRAYBOUND bound[1] = {0, 0};
bound[0].cElements = item.size();
blob = SafeArrayCreate(VT_UI1, 1, bound);
if (S_OK != SafeArrayLock(blob)) {
SafeArrayDestroy(blob);
blob = 0;
throw qpid::Exception("Error locking blob area for string");
}
memcpy_s(blob->pvData, item.size(), item.data(), item.size());
this->vt = VT_ARRAY | VT_UI1;
this->parray = blob;
SafeArrayUnlock(blob);
}
BlobEncoder::BlobEncoder(const qpid::broker::Persistable &item) : blob(0)
{
encode(item);
}
BlobEncoder::BlobEncoder(const boost::intrusive_ptr<qpid::broker::PersistableMessage> &msg) : blob(0)
{
encode(msg);
}
BlobEncoder::BlobEncoder(const qpid::framing::FieldTable &fields) : blob(0)
{
encode(fields);
}
BlobEncoder::BlobEncoder(const std::string &data) : blob(0)
{
encode(data);
}
BlobEncoder::~BlobEncoder()
{
if (blob)
SafeArrayDestroy(blob);
blob = 0;
this->parray = 0;
}
}}} // namespace qpid::store::ms_sql
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