1 files changed, 93 insertions, 0 deletions
diff --git a/cpp/src/qpid/framing/MethodHolder.cpp b/cpp/src/qpid/framing/MethodHolder.cpp
new file mode 100644
index 0000000000..27046af43c
--- /dev/null
+++ b/cpp/src/qpid/framing/MethodHolder.cpp
@@ -0,0 +1,93 @@
+/*
+ *
+ * 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 "MethodHolder.h"
+#include "amqp_types.h"
+#include "qpid/framing/Buffer.h"
+#include "qpid/framing/variant.h"
+
+using namespace boost;
+
+namespace qpid {
+namespace framing {
+
+struct SetVariantVisitor : public NoBlankVisitor<> {
+    QPID_USING_NOBLANK();
+    MethodId id;
+    SetVariantVisitor(MethodId m) : id(m) {}
+    template <class T> void operator()(T& t) const { setVariant(t, id); }
+};
+
+inline void setVariant(MethodVariant& var, ClassId c, MethodId m) {
+    setVariant(var,c);
+    boost::apply_visitor(SetVariantVisitor(m), var);
+}
+
+void MethodHolder::setMethod(ClassId c, MethodId m) {
+    setVariant(method, c, m);
+}
+
+MethodHolder::MethodHolder(ClassId c, MethodId m) {
+    setMethod(c,m);
+}
+
+struct GetClassId : public NoBlankVisitor<ClassId> {
+    QPID_USING_NOBLANK(ClassId);
+    template <class T> ClassId operator()(const T&) const {
+        return T::CLASS_ID;
+    }
+};
+
+struct GetMethodId : public NoBlankVisitor<MethodId> {
+    QPID_USING_NOBLANK(ClassId);
+    template <class T> MethodId operator()(const T&) const {
+        return T::METHOD_ID;
+    }
+};
+
+void MethodHolder::encode(Buffer& b) const {
+    const AMQMethodBody* body = getMethod();
+    b.putShort(body->amqpClassId());
+    b.putShort(body->amqpMethodId());
+    body->encodeContent(b);
+}
+
+void MethodHolder::decode(Buffer& b) {
+    ClassId classId = b.getShort();
+    ClassId methodId = b.getShort();
+    setVariant(method, classId, methodId);
+    getMethod()->decodeContent(b);
+}
+
+uint32_t  MethodHolder::size() const {
+    return sizeof(ClassId)+sizeof(MethodId)+getMethod()->size();
+}
+
+
+AMQMethodBody* MethodHolder::getMethod() {
+    return applyApplyVisitor(AddressVisitor<AMQMethodBody*>(), method);
+}
+
+const AMQMethodBody* MethodHolder::getMethod() const {
+    return const_cast<MethodHolder*>(this)->getMethod();
+}
+
+}} // namespace qpid::framing