1 files changed, 118 insertions, 0 deletions
diff --git a/qpid/cpp/examples/messaging/drain.cpp b/qpid/cpp/examples/messaging/drain.cpp
new file mode 100644
index 0000000000..7700244fa8
--- /dev/null
+++ b/qpid/cpp/examples/messaging/drain.cpp
@@ -0,0 +1,118 @@
+/*
+ *
+ * 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/Connection.h>
+#include <qpid/messaging/Message.h>
+#include <qpid/messaging/Receiver.h>
+#include <qpid/messaging/Session.h>
+
+#include <iostream>
+
+#include "OptionParser.h"
+
+using namespace qpid::messaging;
+using namespace qpid::types;
+
+struct Options : OptionParser
+{
+    std::string url;
+    std::string address;
+    std::string connectionOptions;
+    int timeout;
+    bool forever;
+    int count;
+
+    Options()
+        : OptionParser("Usage: drain [OPTIONS] ADDRESS", "Drains messages from the specified address"),
+          url("127.0.0.1"),
+          timeout(0),
+          forever(false),
+          count(1)
+    {
+        add("broker,b", url, "url of broker to connect to");
+        add("timeout,t", timeout, "timeout in seconds to wait before exiting");
+        add("forever,f", forever, "ignore timeout and wait forever");
+        add("connection-options", connectionOptions, "connection options string in the form {name1:value1, name2:value2}");
+        add("count,c", count, "number of messages to read before exiting");
+    }
+
+    Duration getTimeout()
+    {
+        if (forever) return Duration::FOREVER;
+        else return timeout*Duration::SECOND;
+    }
+
+    int getCount()
+    {
+        return count;
+    }
+    
+    bool checkAddress()
+    {
+        if (getArguments().empty()) {
+            error("Address is required");
+            return false;
+        } else {
+            address = getArguments()[0];
+            return true;
+        }
+    }
+};
+
+int main(int argc, char** argv)
+{
+    Options options;
+    if (options.parse(argc, argv) && options.checkAddress()) {
+        Connection connection(options.url, options.connectionOptions);
+        try {
+            connection.open();
+            Session session = connection.createSession();
+            Receiver receiver = session.createReceiver(options.address);
+            Duration timeout = options.getTimeout();
+            int count = options.getCount();
+            Message message;
+            int i = 0;
+            
+            while (receiver.fetch(message, timeout)) {
+                std::cout << "Message(properties=" << message.getProperties() << ", content='" ;
+                if (message.getContentType() == "amqp/map") {
+                    Variant::Map map;
+                    decode(message, map);
+                    std::cout << map;
+                } else {
+                    std::cout << message.getContent();
+                }
+                std::cout  << "')" << std::endl;
+                session.acknowledge();
+                if (count && (++i == count))
+                    break;
+            }
+            receiver.close();
+            session.close();            
+            connection.close();
+            return 0;
+        } catch(const std::exception& error) {
+            std::cout << error.what() << std::endl;
+            connection.close();
+        }
+    }
+    return 1;   
+}