1 files changed, 109 insertions, 0 deletions
diff --git a/qpid/cpp/src/qpid/framing/AMQHeaderBody.h b/qpid/cpp/src/qpid/framing/AMQHeaderBody.h
new file mode 100644
index 0000000000..a8c326969a
--- /dev/null
+++ b/qpid/cpp/src/qpid/framing/AMQHeaderBody.h
@@ -0,0 +1,109 @@
+#ifndef QPID_FRAMING_AMQHEADERBODY_H
+#define QPID_FRAMING_AMQHEADERBODY_H
+
+/*
+ *
+ * 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/framing/amqp_types.h"
+#include "qpid/framing/AMQBody.h"
+#include "qpid/framing/Buffer.h"
+#include "qpid/framing/DeliveryProperties.h"
+#include "qpid/framing/MessageProperties.h"
+#include "qpid/CommonImportExport.h"
+#include <iostream>
+
+#include <boost/optional.hpp>
+
+
+namespace qpid {
+namespace framing {
+
+class QPID_COMMON_CLASS_EXTERN AMQHeaderBody :  public AMQBody
+{
+    template <class T> struct OptProps { boost::optional<T> props; };
+    template <class Base, class T>
+    struct PropSet : public Base, public OptProps<T> {
+        uint32_t encodedSize() const {
+            const boost::optional<T>& p=this->OptProps<T>::props;
+            return (p ? p->encodedSize() : 0) + Base::encodedSize();
+        }
+        void encode(Buffer& buffer) const {
+            const boost::optional<T>& p=this->OptProps<T>::props;
+            if (p) p->encode(buffer);
+            Base::encode(buffer);
+        }
+        bool decode(Buffer& buffer, uint32_t size, uint16_t type) {
+            boost::optional<T>& p=this->OptProps<T>::props;
+            if (type == T::TYPE) {
+                p=T();
+                p->decodeStructBody(buffer, size);
+                return true;
+        }
+            else
+                return Base::decode(buffer, size, type);
+        }        
+        void print(std::ostream& out) const {
+            const boost::optional<T>& p=this->OptProps<T>::props;
+            if (p) out << *p;
+            Base::print(out);
+        }
+    };
+
+    struct Empty {
+        uint32_t encodedSize() const { return 0; }
+        void encode(Buffer&) const {};
+        bool decode(Buffer&, uint32_t, uint16_t) const { return false; };
+        void print(std::ostream&) const {}
+    };
+
+    // Could use boost::mpl::fold to construct a larger set.
+    typedef  PropSet<PropSet<Empty, DeliveryProperties>, MessageProperties> Properties;
+
+    Properties properties;
+    
+public:
+
+    inline uint8_t type() const { return HEADER_BODY; }
+
+    QPID_COMMON_EXTERN uint32_t encodedSize() const;
+    QPID_COMMON_EXTERN void encode(Buffer& buffer) const;
+    QPID_COMMON_EXTERN void decode(Buffer& buffer, uint32_t size);
+    QPID_COMMON_EXTERN uint64_t getContentLength() const;
+    QPID_COMMON_EXTERN void print(std::ostream& out) const;
+    QPID_COMMON_EXTERN void accept(AMQBodyConstVisitor&) const;
+
+    template <class T> T* get(bool create) {
+        boost::optional<T>& p=properties.OptProps<T>::props;
+        if (create && !p) p=T();
+        return p.get_ptr();
+    }
+
+    template <class T> const T* get() const {
+        return properties.OptProps<T>::props.get_ptr();
+    }
+
+    boost::intrusive_ptr<AMQBody> clone() const { return BodyFactory::copy(*this); }
+};
+
+}}
+
+
+
+#endif  /*!QPID_FRAMING_AMQHEADERBODY_H*/