* src/qpid/framing/Handler.h: Tempates for handlers and handler chains.

 * src/qpid/framing/FrameHandler.h: Use Handler.h templates.
 * src/tests/Handler.cpp: handler chain test.


git-svn-id: https://svn.apache.org/repos/asf/incubator/qpid/trunk/qpid@550846 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 67 insertions, 0 deletions

diff --git a/cpp/src/tests/Handler.cpp b/cpp/src/tests/Handler.cpp
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+++ b/cpp/src/tests/Handler.cpp
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+/*
+ *
+ * Copyright (c) 2006 The Apache Software Foundation
+ *
+ * Licensed 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.
+ *
+ */
+
+#define BOOST_AUTO_TEST_MAIN    // Must come before #include<boost/test/*>
+#include <boost/test/auto_unit_test.hpp>
+
+#include "qpid/framing/AMQFrame.h"
+#include "qpid/framing/FrameHandler.h"
+#include "test_tools.h"
+#include <boost/assign.hpp>
+
+using namespace std;
+using namespace qpid;
+using namespace qpid::framing;
+using namespace boost::assign;
+
+typedef int DummyFrame;
+typedef int DummyContext;
+vector<int> handledBy;
+
+/** Both a link and a terminal handler. */
+template <int N>
+struct TestHandler : public Handler<DummyFrame> {
+    TestHandler(DummyContext c) : context(c) {}
+    
+    void handle(DummyFrame frame) {
+        handledBy.push_back(N+context);
+        nextHandler(frame);
+    }
+
+    typedef HandlerFactoryImpl<TestHandler<N>, DummyContext> Factory;
+    DummyContext context;
+};
+
+
+
+BOOST_AUTO_TEST_CASE(handlerChains) {
+    TestHandler<1>::Factory a;
+    TestHandler<2>::Factory b;
+    TestHandler<3>::Factory c;
+    HandlerFactoryChain<DummyFrame, DummyContext> factory;
+    factory.push_back(&a);
+    factory.push_back(&b);
+    factory.push_back(&c);
+    factory.create(10)->handle(1);
+
+    vector<int> expect;
+    expect = list_of(11)(12)(13);
+    BOOST_CHECK_EQUAL(expect, handledBy);
+}
+
+