diff options
Diffstat (limited to 'qpid/cpp/src/qpid/store/ms-sql/MessageMapRecordset.cpp')
-rw-r--r-- | qpid/cpp/src/qpid/store/ms-sql/MessageMapRecordset.cpp | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/qpid/cpp/src/qpid/store/ms-sql/MessageMapRecordset.cpp b/qpid/cpp/src/qpid/store/ms-sql/MessageMapRecordset.cpp new file mode 100644 index 0000000000..7072015864 --- /dev/null +++ b/qpid/cpp/src/qpid/store/ms-sql/MessageMapRecordset.cpp @@ -0,0 +1,115 @@ +/* + * + * 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 <qpid/Exception.h> +#include <qpid/log/Statement.h> +#include <qpid/store/StorageProvider.h> + +#include "MessageMapRecordset.h" +#include "VariantHelper.h" + +namespace qpid { +namespace store { +namespace ms_sql { + +void +MessageMapRecordset::add(uint64_t messageId, uint64_t queueId) +{ + rs->AddNew(); + rs->Fields->GetItem("messageId")->Value = messageId; + rs->Fields->GetItem("queueId")->Value = queueId; + rs->Update(); +} + +bool +MessageMapRecordset::remove(uint64_t messageId, uint64_t queueId) +{ + // Look up all mappings for the specified message. Then scan + // for the specified queue and keep track of whether or not the + // message exists on any queue we are not looking for a well. + std::ostringstream filter; + filter << "messageId = " << messageId << std::ends; + rs->PutFilter (VariantHelper<std::string>(filter.str())); + MessageMap m; + IADORecordBinding *piAdoRecordBinding; + rs->QueryInterface(__uuidof(IADORecordBinding), + (LPVOID *)&piAdoRecordBinding); + piAdoRecordBinding->BindToRecordset(&m); + bool moreEntries = false, deleted = false; + // If the desired mapping gets deleted, and we already know there are + // other mappings for the message, don't bother finishing the scan. + while (!rs->EndOfFile && !(deleted && moreEntries)) { + if (m.queueId == queueId) { + rs->Delete(adAffectCurrent); + rs->Update(); + deleted = true; + } + else { + moreEntries = true; + } + rs->MoveNext(); + } + piAdoRecordBinding->Release(); + return moreEntries; +} + +void +MessageMapRecordset::recover(MessageQueueMap& msgMap) +{ + if (rs->BOF && rs->EndOfFile) + return; // Nothing to do + rs->MoveFirst(); + MessageMap b; + IADORecordBinding *piAdoRecordBinding; + rs->QueryInterface(__uuidof(IADORecordBinding), + (LPVOID *)&piAdoRecordBinding); + piAdoRecordBinding->BindToRecordset(&b); + while (!rs->EndOfFile) { + msgMap[b.messageId].push_back(b.queueId); + rs->MoveNext(); + } + + piAdoRecordBinding->Release(); +} + +void +MessageMapRecordset::dump() +{ + Recordset::dump(); + if (rs->EndOfFile && rs->BOF) // No records + return; + rs->MoveFirst(); + + MessageMap m; + IADORecordBinding *piAdoRecordBinding; + rs->QueryInterface(__uuidof(IADORecordBinding), + (LPVOID *)&piAdoRecordBinding); + piAdoRecordBinding->BindToRecordset(&m); + + while (!rs->EndOfFile) { + QPID_LOG(notice, "msg " << m.messageId << " on queue " << m.queueId); + rs->MoveNext(); + } + + piAdoRecordBinding->Release(); +} + +}}} // namespace qpid::store::ms_sql |