1 files changed, 133 insertions, 0 deletions
diff --git a/qpid/cpp/src/qpid/store/ms-sql/BlobEncoder.cpp b/qpid/cpp/src/qpid/store/ms-sql/BlobEncoder.cpp
new file mode 100644
index 0000000000..75d3dc2d86
--- /dev/null
+++ b/qpid/cpp/src/qpid/store/ms-sql/BlobEncoder.cpp
@@ -0,0 +1,133 @@
+/*
+ *
+ * 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