1 files changed, 68 insertions, 0 deletions
diff --git a/cpp/src/qpid/broker/LazyLoadedContent.cpp b/cpp/src/qpid/broker/LazyLoadedContent.cpp
new file mode 100644
index 0000000000..c11d049317
--- /dev/null
+++ b/cpp/src/qpid/broker/LazyLoadedContent.cpp
@@ -0,0 +1,68 @@
+/*
+ *
+ * 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 "LazyLoadedContent.h"
+#include "qpid/framing/AMQFrame.h"
+#include "qpid/framing/ChannelAdapter.h"
+
+using namespace qpid::broker;
+using namespace qpid::framing;
+
+LazyLoadedContent::~LazyLoadedContent()
+{
+    store->destroy(*msg);
+}
+
+LazyLoadedContent::LazyLoadedContent(MessageStore* const _store, Message* const _msg, uint64_t _expectedSize) : 
+    store(_store), msg(_msg), expectedSize(_expectedSize) {}
+
+void LazyLoadedContent::add(AMQContentBody::shared_ptr data)
+{
+    store->appendContent(*msg, data->getData());
+}
+
+uint32_t LazyLoadedContent::size()
+{
+    return 0;//all content is written as soon as it is added
+}
+
+void LazyLoadedContent::send(ChannelAdapter& channel, uint32_t framesize)
+{
+    if (expectedSize > framesize) {        
+        for (uint64_t offset = 0; offset < expectedSize; offset += framesize)
+        {            
+            uint64_t remaining = expectedSize - offset;
+            string data;
+            store->loadContent(*msg, data, offset,
+                               remaining > framesize ? framesize : remaining);
+            channel.send(new AMQContentBody(data));
+        }
+    } else {
+        string data;
+        store->loadContent(*msg, data, 0, expectedSize);  
+        channel.send(new AMQContentBody(data));
+    }
+}
+
+void LazyLoadedContent::encode(Buffer&)
+{
+    //do nothing as all content is written as soon as it is added 
+}
+