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+#ifndef QPID_CLIENT_AMQP0_10_RECEIVERIMPL_H
+#define QPID_CLIENT_AMQP0_10_RECEIVERIMPL_H
+
+/*
+ *
+ * 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/Address.h"
+#include "qpid/messaging/Filter.h"
+#include "qpid/messaging/Message.h"
+#include "qpid/messaging/ReceiverImpl.h"
+#include "qpid/messaging/Variant.h"
+#include "qpid/client/AsyncSession.h"
+#include "qpid/client/amqp0_10/SessionImpl.h"
+#include "qpid/sys/Time.h"
+#include <memory>
+
+namespace qpid {
+namespace client {
+namespace amqp0_10 {
+
+class AddressResolution;
+class MessageSource;
+
+/**
+ * A receiver implementation based on an AMQP 0-10 subscription.
+ */
+class ReceiverImpl : public qpid::messaging::ReceiverImpl
+{
+ public:
+
+ enum State {UNRESOLVED, STOPPED, STARTED, CANCELLED};
+
+ ReceiverImpl(SessionImpl& parent, const std::string& name,
+ const qpid::messaging::Address& address,
+ const qpid::messaging::Filter* filter,
+ const qpid::messaging::Variant::Map& options);
+
+ void init(qpid::client::AsyncSession session, AddressResolution& resolver);
+ bool get(qpid::messaging::Message& message, qpid::sys::Duration timeout);
+ qpid::messaging::Message get(qpid::sys::Duration timeout);
+ bool fetch(qpid::messaging::Message& message, qpid::sys::Duration timeout);
+ qpid::messaging::Message fetch(qpid::sys::Duration timeout);
+ void cancel();
+ void start();
+ void stop();
+ const std::string& getName() const;
+ void setCapacity(uint32_t);
+ void setListener(qpid::messaging::MessageListener* listener);
+ qpid::messaging::MessageListener* getListener();
+ void received(qpid::messaging::Message& message);
+ private:
+ SessionImpl& parent;
+ const std::string destination;
+ const qpid::messaging::Address address;
+ const qpid::messaging::Filter* filter;
+ const qpid::messaging::Variant::Map options;
+ const uint32_t byteCredit;
+ State state;
+
+ std::auto_ptr<MessageSource> source;
+ uint32_t capacity;
+ qpid::client::AsyncSession session;
+ qpid::messaging::MessageListener* listener;
+ uint32_t window;
+
+ void startFlow();
+ //implementation of public facing methods
+ bool fetchImpl(qpid::messaging::Message& message, qpid::sys::Duration timeout);
+ bool getImpl(qpid::messaging::Message& message, qpid::sys::Duration timeout);
+ void startImpl();
+ void stopImpl();
+ void cancelImpl();
+ void setCapacityImpl(uint32_t);
+
+ //functors for public facing methods (allows locking and retry
+ //logic to be centralised)
+ struct Command
+ {
+ ReceiverImpl& impl;
+
+ Command(ReceiverImpl& i) : impl(i) {}
+ };
+
+ struct Get : Command
+ {
+ qpid::messaging::Message& message;
+ qpid::sys::Duration timeout;
+ bool result;
+
+ Get(ReceiverImpl& i, qpid::messaging::Message& m, qpid::sys::Duration t) :
+ Command(i), message(m), timeout(t), result(false) {}
+ void operator()() { result = impl.getImpl(message, timeout); }
+ };
+
+ struct Fetch : Command
+ {
+ qpid::messaging::Message& message;
+ qpid::sys::Duration timeout;
+ bool result;
+
+ Fetch(ReceiverImpl& i, qpid::messaging::Message& m, qpid::sys::Duration t) :
+ Command(i), message(m), timeout(t), result(false) {}
+ void operator()() { result = impl.fetchImpl(message, timeout); }
+ };
+
+ struct Stop : Command
+ {
+ Stop(ReceiverImpl& i) : Command(i) {}
+ void operator()() { impl.stopImpl(); }
+ };
+
+ struct Start : Command
+ {
+ Start(ReceiverImpl& i) : Command(i) {}
+ void operator()() { impl.startImpl(); }
+ };
+
+ struct Cancel : Command
+ {
+ Cancel(ReceiverImpl& i) : Command(i) {}
+ void operator()() { impl.cancelImpl(); }
+ };
+
+ struct SetCapacity : Command
+ {
+ uint32_t capacity;
+
+ SetCapacity(ReceiverImpl& i, uint32_t c) : Command(i), capacity(c) {}
+ void operator()() { impl.setCapacityImpl(capacity); }
+ };
+
+ //helper templates for some common patterns
+ template <class F> void execute()
+ {
+ F f(*this);
+ parent.execute(f);
+ }
+
+ template <class F, class P> void execute1(P p)
+ {
+ F f(*this, p);
+ parent.execute(f);
+ }
+};
+
+}}} // namespace qpid::client::amqp0_10
+
+#endif /*!QPID_CLIENT_AMQP0_10_RECEIVERIMPL_H*/