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authorjsdelfino <jsdelfino@13f79535-47bb-0310-9956-ffa450edef68>2010-02-01 07:57:32 +0000
committerjsdelfino <jsdelfino@13f79535-47bb-0310-9956-ffa450edef68>2010-02-01 07:57:32 +0000
commit80f6823cacf6f018cbe0d86198afa23be71f991f (patch)
tree64181f34f79e158e945c8e3aba7da2d3514f0bc7 /sca-cpp/trunk/components/queue/qpid.hpp
parent8c5172b8ab407b79db53ce46271d72d8a3f9c19f (diff)
Added build configuration and dependencies for chat and queue components.
git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@905203 13f79535-47bb-0310-9956-ffa450edef68
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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.
+ */
+
+/* $Rev$ $Date$ */
+
+#ifndef tuscany_queue_hpp
+#define tuscany_queue_hpp
+
+/**
+ * AMQP queue access functions.
+ */
+
+// Ignore conversion issues and redundant declarations in Qpid headers
+#ifdef WANT_MAINTAINER_MODE
+#pragma GCC diagnostic ignored "-Wconversion"
+#pragma GCC diagnostic ignored "-Wredundant-decls"
+#endif
+
+#include <qpid/client/Connection.h>
+#include <qpid/client/Session.h>
+
+#include "string.hpp"
+#include "list.hpp"
+#include "value.hpp"
+#include "monad.hpp"
+#include "../../modules/scheme/eval.hpp"
+
+namespace tuscany {
+namespace queue {
+
+/**
+ * Represents a Qpid connection.
+ */
+class QpidConnection {
+public:
+ QpidConnection() : owner(true) {
+ c.open("localhost", 5672);
+ }
+
+ QpidConnection(const QpidConnection& qc) : owner(false), c(qc.c) {
+ }
+
+ ~QpidConnection() {
+ if (!owner)
+ return;
+ c.close();
+ }
+
+private:
+ friend class QpidSession;
+
+ const bool owner;
+ qpid::client::Connection c;
+
+};
+
+/**
+ * Represents a Qpid session.
+ */
+class QpidSession {
+public:
+ QpidSession(QpidConnection& qc) : owner(true), s(qc.c.newSession()) {
+ }
+
+ QpidSession(const QpidSession& qs) : owner(false), s(qs.s) {
+ }
+
+ ~QpidSession() {
+ if (!owner)
+ return;
+ s.close();
+ }
+
+private:
+ friend qpid::client::Session session(const QpidSession& qs);
+
+ const bool owner;
+ qpid::client::Session s;
+};
+
+qpid::client::Session session(const QpidSession& qs) {
+ return qs.s;
+}
+
+/**
+ * Declare a key / AMQP queue pair.
+ */
+const failable<bool> declareQueue(const string& key, const string& name, QpidSession& qs) {
+ session(qs).queueDeclare(qpid::client::arg::queue=c_str(name));
+ session(qs).exchangeBind(qpid::client::arg::exchange="amq.direct", qpid::client::arg::queue=c_str(name), qpid::client::arg::bindingKey=c_str(key));
+ return true;
+}
+
+/**
+ * Post a key / value pair in message to an AMQP broker.
+ */
+const failable<bool> post(const string& key, const value& val, QpidSession& qs) {
+
+ // Convert the value to a string
+ const string vs(scheme::writeValue(val));
+
+ // Send in a message with the given key.
+ qpid::client::Message message;
+ message.getDeliveryProperties().setRoutingKey(c_str(key));
+ message.setData(c_str(vs));
+ session(qs).messageTransfer(qpid::client::arg::content=message, qpid::client::arg::destination="amq.direct");
+ return true;
+}
+
+}
+}
+
+// Re-enable conversion and redundant declarations warnings
+#ifdef WANT_MAINTAINER_MODE
+#pragma GCC diagnostic warning "-Wconversion"
+#pragma GCC diagnostic warning "-Wredundant-decls"
+#endif
+
+#endif /* tuscany_qpid_hpp */