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+/*
+ *
+ * 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.
+ *
+ */
+
+/**
+ * topic_config_queues.cpp
+ *
+ * This program is one of three programs designed to be used
+ * together. These programs use the topic exchange.
+ *
+ * topic_config_queues.cpp (this program):
+ *
+ * Creates a queue on a broker, binding a routing key to route
+ * messages to that queue.
+ *
+ * topic_publisher.cpp:
+ *
+ * Publishes to a broker, specifying a routing key.
+ *
+ * topic_listener.cpp
+ *
+ * Reads from a queue on the broker using a message listener.
+ *
+ */
+
+#include <qpid/client/Connection.h>
+#include <qpid/client/Session.h>
+
+#include <unistd.h>
+#include <cstdlib>
+#include <iostream>
+
+using namespace qpid::client;
+using namespace qpid::framing;
+
+using std::string;
+
+
+int main() {
+ Connection connection;
+ Message msg;
+ try {
+ connection.open("127.0.0.1", 5672);
+ Session session = connection.newSession();
+
+
+ //--------- Main body of program --------------------------------------------
+
+
+ /* A consumer application reads from the queue, and needs no
+ * knowledge of the exchanges used to route messages to the
+ * queue, or of the routing keys.
+ *
+ * A publisher application writes to the exchange, providing a
+ * routing key, It needs no knowledge of the queues or bindings
+ * used to route messages to consumers.
+ */
+
+
+ /* Create queues on the broker. */
+
+ session.queueDeclare(arg::queue="news_queue");
+ session.queueDeclare(arg::queue="weather_queue");
+ session.queueDeclare(arg::queue="usa_queue");
+ session.queueDeclare(arg::queue="europe_queue");
+
+ /* Bind these queues using routing keys, so messages will be
+ delivered to the right queues. */
+
+ session.queueBind(arg::exchange="amq.topic", arg::queue="news_queue", arg::routingKey="#.news");
+ session.queueBind(arg::exchange="amq.topic", arg::queue="weather_queue", arg::routingKey="#.weather");
+ session.queueBind(arg::exchange="amq.topic", arg::queue="usa_queue", arg::routingKey="usa.#");
+ session.queueBind(arg::exchange="amq.topic", arg::queue="europe_queue", arg::routingKey="europe.#");
+
+
+ /*
+ * We use a separate 'control' routing key for control
+ * messages. All such messages are routed to each queue. In
+ * this demo, we use a message with the content "That's all,
+ * Folks!" to signal that no more messages will be sent, and
+ * users of the queue can stop listening for messages.
+ *
+ * Because wildcard matching can result in more than one match for
+ * a given message, it can place more messages on the queues than
+ * were originally received.
+ *
+ * We do not use wildcard matching for control messages. We
+ * want to make sure that each such message is received once
+ * and only once.
+ */
+
+
+ session.queueBind(arg::exchange="amq.topic", arg::queue="news_queue", arg::routingKey="control");
+ session.queueBind(arg::exchange="amq.topic", arg::queue="weather_queue", arg::routingKey="control");
+ session.queueBind(arg::exchange="amq.topic", arg::queue="usa_queue", arg::routingKey="control");
+ session.queueBind(arg::exchange="amq.topic", arg::queue="europe_queue", arg::routingKey="control");
+
+
+ //-----------------------------------------------------------------------------
+
+ connection.close();
+ return 0;
+ } catch(const std::exception& error) {
+ std::cout << error.what() << std::endl;
+ }
+ return 1;
+
+}
+
+
+