QPID-664: Add spout & drain examples as per python client

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk/qpid@882118 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 125 insertions, 0 deletions

diff --git a/cpp/examples/messaging/drain.cpp b/cpp/examples/messaging/drain.cpp
new file mode 100644
index 0000000000..2bd9fcdac8
--- /dev/null
+++ b/cpp/examples/messaging/drain.cpp
@@ -0,0 +1,125 @@
+/*
+ *
+ * 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/MapView.h>
+#include <qpid/messaging/Message.h>
+#include <qpid/messaging/Receiver.h>
+#include <qpid/messaging/Session.h>
+#include <qpid/Exception.h>
+#include <qpid/Options.h>
+#include <qpid/log/Logger.h>
+#include <qpid/log/Options.h>
+#include <qpid/sys/Time.h>
+
+#include <iostream>
+
+using namespace qpid::messaging;
+using qpid::sys::Duration;
+using qpid::sys::TIME_INFINITE;
+using qpid::sys::TIME_SEC;
+
+struct Options : public qpid::Options
+{
+    bool help;
+    std::string url;
+    std::string address;
+    int64_t timeout;
+    bool forever;
+    qpid::log::Options log;
+
+    Options(const std::string& argv0=std::string())
+        : qpid::Options("Options"),
+          help(false),
+          url("amqp:tcp:127.0.0.1"),
+          timeout(0),
+          forever(false),
+          log(argv0)
+    {
+        addOptions()
+            ("broker,b", qpid::optValue(url, "URL"), "url of broker to connect to")
+            ("address,a", qpid::optValue(address, "ADDRESS"), "address to drain from")
+            ("timeout,t", qpid::optValue(timeout, "TIMEOUT"), "timeout in seconds to wait before exiting")
+            ("forever,f", qpid::optValue(forever), "ignore timeout and wait forever")
+            ("help", qpid::optValue(help), "print this usage statement");
+        add(log);
+    }
+
+    Duration getTimeout()
+    {
+        if (forever) return TIME_INFINITE;
+        else return timeout*TIME_SEC;
+
+    }
+    bool parse(int argc, char** argv)
+    {
+        try {
+            qpid::Options::parse(argc, argv);
+            if (address.empty()) throw qpid::Exception("Address must be specified!");
+            qpid::log::Logger::instance().configure(log);
+            if (help) {
+                std::ostringstream msg;
+                std::cout << msg << *this << std::endl << std::endl 
+                          << "Drains messages from the specified address" << std::endl;
+                return false;
+            } else {
+                return true;
+            }
+        } catch (const std::exception& e) {
+            std::cerr << *this << std::endl << std::endl << e.what() << std::endl;
+            return false;
+        }
+    }
+};
+
+
+int main(int argc, char** argv)
+{
+    Options options(argv[0]);
+    if (options.parse(argc, argv)) {
+        try {
+            Connection connection = Connection::open(options.url);
+            Session session = connection.newSession();
+            Receiver receiver = session.createReceiver(options.address);
+            Duration timeout = options.getTimeout();
+            Message message;
+            while (receiver.fetch(message, timeout)) {
+                std::cout << "Message(properties=" << message.getHeaders() << ", content='" ;
+                if (message.getContentType() == "amqp/map") {
+                    std::cout << MapView(message);
+                } else {
+                    std::cout << message.getContent();
+                }
+                std::cout  << "')" << std::endl;
+                session.acknowledge();
+            }
+            receiver.cancel();
+            session.close();            
+            connection.close();
+            return 0;
+        } catch(const std::exception& error) {
+            std::cout << error.what() << std::endl;
+        }
+    }
+    return 1;   
+}
+
+