Added some failover capable tests

Added grantCredit() method to subscription to allow simpler control of message delivery



git-svn-id: https://svn.apache.org/repos/asf/incubator/qpid/trunk/qpid@714065 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 120 insertions, 0 deletions

diff --git a/cpp/src/tests/receiver.cpp b/cpp/src/tests/receiver.cpp
new file mode 100644
index 0000000000..3a4ac3649d
--- /dev/null
+++ b/cpp/src/tests/receiver.cpp
@@ -0,0 +1,120 @@
+/*
+ *
+ * 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/client/FailoverManager.h>
+#include <qpid/client/Session.h>
+#include <qpid/client/Message.h>
+#include <qpid/client/SubscriptionManager.h>
+#include <qpid/client/SubscriptionManager.h>
+#include "TestOptions.h"
+
+#include <iostream>
+#include <fstream>
+
+
+using namespace qpid;
+using namespace qpid::client;
+using namespace qpid::framing;
+
+using namespace std;
+
+struct Args : public qpid::TestOptions 
+{
+    string queue;
+    uint messages;
+    bool ignoreDuplicates;
+
+    Args() : queue("test-queue"), messages(0), ignoreDuplicates(false)
+    {
+        addOptions()            
+            ("queue", qpid::optValue(queue, "QUEUE NAME"), "Queue from which to request messages")
+            ("messages", qpid::optValue(messages, "N"), "Number of messages to receive; 0 means receive indefinitely")
+            ("ignore-duplicates", qpid::optValue(ignoreDuplicates), "Detect and ignore duplicates (by checking 'sn' header)");
+    }
+};
+
+const string EOS("eos");
+
+class Receiver : public MessageListener, public FailoverManager::Command
+{
+  public:
+    Receiver(const string& queue, uint messages, bool ignoreDuplicates);
+    void received(Message& message);
+    void execute(AsyncSession& session, bool isRetry);
+  private:
+    const string queue;
+    const uint count;
+    const bool skipDups;
+    Subscription subscription;
+    uint processed;
+    uint lastSn;
+
+    bool isDuplicate(Message& message);
+};
+
+Receiver::Receiver(const string& q, uint messages, bool ignoreDuplicates) : 
+    queue(q), count(messages), skipDups(ignoreDuplicates), processed(0), lastSn(0) {}
+
+void Receiver::received(Message & message) 
+{
+    if (!(skipDups && isDuplicate(message))) {
+        bool eos = message.getData() == EOS;
+        if (!eos) std::cout << message.getData() << std::endl;
+        if (eos || ++processed == count) subscription.cancel();
+    }
+}
+
+bool Receiver::isDuplicate(Message& message) 
+{
+    uint sn = message.getHeaders().getAsInt("sn");
+    if (lastSn < sn) {
+        lastSn = sn;
+        return false;
+    } else {
+        return true;
+    }
+}
+
+void Receiver::execute(AsyncSession& session, bool /*isRetry*/)
+{
+    SubscriptionManager subs(session);
+    subscription = subs.subscribe(*this, queue);
+    subs.run();
+}
+
+int main(int argc, char ** argv)
+{
+    Args opts;
+    try {
+        opts.parse(argc, argv);
+        FailoverManager connection(opts.con);
+        Receiver receiver(opts.queue, opts.messages, opts.ignoreDuplicates);
+        connection.execute(receiver);
+        connection.close();
+        return 0;
+    } catch(const std::exception& error) {
+        std::cerr << "Failure: " << error.what() << std::endl;
+    }
+    return 1;
+}
+
+
+