Initial checkin of portable message store plugin and MS SQL-specific storage provider. Goes with QPID-2017

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk/qpid@827870 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 70 insertions, 0 deletions

diff --git a/cpp/src/qpid/store/ms-sql/DatabaseConnection.cpp b/cpp/src/qpid/store/ms-sql/DatabaseConnection.cpp
new file mode 100644
index 0000000000..34edec8acd
--- /dev/null
+++ b/cpp/src/qpid/store/ms-sql/DatabaseConnection.cpp
@@ -0,0 +1,70 @@
+/*
+ *
+ * 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 "DatabaseConnection.h"
+#include "Exception.h"
+#include <comdef.h>
+namespace {
+inline void TESTHR(HRESULT x) {if FAILED(x) _com_issue_error(x);};
+}
+
+namespace qpid {
+namespace store {
+namespace ms_sql {
+
+DatabaseConnection::DatabaseConnection() : conn(0)
+{
+}
+
+DatabaseConnection::~DatabaseConnection()
+{
+    close();
+}
+
+void
+DatabaseConnection::open(const std::string& connectString,
+                         const std::string& dbName)
+{
+    if (conn && conn->State == adStateOpen)
+        return;
+    std::string adoConnect = "Provider=SQLOLEDB;" + connectString;
+    try {
+        TESTHR(conn.CreateInstance(__uuidof(Connection)));
+        conn->ConnectionString = adoConnect.c_str();
+        conn->Open("", "", "", adConnectUnspecified);
+        if (dbName.length() > 0)
+            conn->DefaultDatabase = dbName.c_str();
+    }
+    catch(_com_error &e) {
+        close();
+        throw ADOException("MSSQL can't open " + dbName + " at " + adoConnect, e);
+    }
+}
+
+void
+DatabaseConnection::close()
+{
+    if (conn && conn->State == adStateOpen)
+        conn->Close();
+    conn = 0;
+}
+
+}}}  // namespace qpid::store::ms_sql