define content- and view- classes separately from message class

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk/qpid@821000 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 63 insertions, 0 deletions

diff --git a/cpp/src/qpid/messaging/ListView.cpp b/cpp/src/qpid/messaging/ListView.cpp
new file mode 100644
index 0000000000..b717d157fa
--- /dev/null
+++ b/cpp/src/qpid/messaging/ListView.cpp
@@ -0,0 +1,63 @@
+/*
+ *
+ * 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/messaging/ListView.h"
+#include "qpid/messaging/Message.h"
+#include "qpid/client/amqp0_10/Codecs.h"
+
+namespace qpid {
+namespace messaging {
+
+class ListViewImpl : public Variant
+{
+  public:
+    ListViewImpl(const Message& msg) : Variant(Variant::List())
+    {
+        if (msg.getContent().size()) {
+            qpid::client::amqp0_10::ListCodec codec;
+            codec.decode(msg.getContent(), *this);
+        }
+    }
+};
+
+ListView::ListView(const Message& m) :impl(new ListViewImpl(m)) {}
+ListView::~ListView() { delete impl; }
+ListView& ListView::operator=(const ListView& l) { *impl = *l.impl; return *this; }
+
+ListView::const_iterator ListView::begin() const { return impl->asList().begin(); }
+ListView::const_iterator ListView::end() const { return impl->asList().end(); }
+ListView::const_reverse_iterator ListView::rbegin() const { return impl->asList().rbegin(); }
+ListView::const_reverse_iterator ListView::rend() const { return impl->asList().rend(); }
+
+bool ListView::empty() const { return impl->asList().empty(); }
+size_t ListView::size() const { return impl->asList().size(); }
+
+const Variant& ListView::front() const { return impl->asList().front(); }
+const Variant& ListView::back() const { return impl->asList().back(); }
+    
+const Variant::List& ListView::asList() const { return impl->asList(); }
+
+std::ostream& operator<<(std::ostream& out, const ListView& m)
+{
+    out << m.asList();
+    return out;
+}
+
+}} // namespace qpid::messaging