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+#ifndef _client_Connection_
+#define _client_Connection_
+
+/*
+ *
+ * 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 <map>
+#include <string>
+#include "qpid/QpidError.h"
+#include "ClientChannel.h"
+#include "Connector.h"
+#include "qpid/sys/ShutdownHandler.h"
+#include "qpid/sys/TimeoutHandler.h"
+
+
+namespace qpid {
+
+/**
+ * The client namespace contains all classes that make up a client
+ * implementation of the AMQP protocol. The key classes that form
+ * the basis of the client API to be used by applications are
+ * Connection and Channel.
+ */
+namespace client {
+
+/**
+ * \internal provide access to selected private channel functions
+ * for the Connection without making it a friend of the entire channel.
+ */
+class ConnectionForChannel :
+ public framing::InputHandler,
+ public framing::OutputHandler,
+ public sys::TimeoutHandler,
+ public sys::ShutdownHandler
+
+{
+ private:
+ friend class Channel;
+ virtual void erase(framing::ChannelId) = 0;
+};
+
+
+/**
+ * \defgroup clientapi Application API for an AMQP client
+ */
+
+/**
+ * Represents a connection to an AMQP broker. All communication is
+ * initiated by establishing a connection, then opening one or
+ * more Channels over that connection.
+ *
+ * \ingroup clientapi
+ */
+class Connection : public ConnectionForChannel
+{
+ typedef std::map<framing::ChannelId, Channel*> ChannelMap;
+
+ framing::ChannelId channelIdCounter;
+ static const std::string OK;
+
+ framing::ProtocolVersion version;
+ const uint32_t max_frame_size;
+ ChannelMap channels;
+ Connector defaultConnector;
+ Connector* connector;
+ framing::OutputHandler* out;
+ volatile bool isOpen;
+ Channel channel0;
+ bool debug;
+
+ void erase(framing::ChannelId);
+ void channelException(
+ Channel&, framing::AMQMethodBody*, const QpidError&);
+
+ // TODO aconway 2007-01-26: too many friendships, untagle these classes.
+ friend class Channel;
+
+ public:
+ /**
+ * Creates a connection object, but does not open the
+ * connection.
+ *
+ * @param _version the version of the protocol to connect with
+ *
+ * @param debug turns on tracing for the connection
+ * (i.e. prints details of the frames sent and received to std
+ * out). Optional and defaults to false.
+ *
+ * @param max_frame_size the maximum frame size that the
+ * client will accept. Optional and defaults to 65536.
+ */
+ Connection(bool debug = false, uint32_t max_frame_size = 65536,
+ framing::ProtocolVersion=framing::highestProtocolVersion);
+ ~Connection();
+
+ /**
+ * Opens a connection to a broker.
+ *
+ * @param host the host on which the broker is running
+ *
+ * @param port the port on the which the broker is listening
+ *
+ * @param uid the userid to connect with
+ *
+ * @param pwd the password to connect with (currently SASL
+ * PLAIN is the only authentication method supported so this
+ * is sent in clear text)
+ *
+ * @param virtualhost the AMQP virtual host to use (virtual
+ * hosts, where implemented(!), provide namespace partitioning
+ * within a single broker).
+ */
+ void open(const std::string& host, int port = 5672,
+ const std::string& uid = "guest",
+ const std::string& pwd = "guest",
+ const std::string& virtualhost = "/");
+
+ /**
+ * Close the connection with optional error information for the peer.
+ *
+ * Any further use of this connection (without reopening it) will
+ * not succeed.
+ */
+ void close(framing::ReplyCode=200, const std::string& msg=OK,
+ framing::ClassId = 0, framing::MethodId = 0);
+
+ /**
+ * Associate a Channel with this connection and open it for use.
+ *
+ * In AMQP channels are like multi-plexed 'sessions' of work over
+ * a connection. Almost all the interaction with AMQP is done over
+ * a channel.
+ *
+ * @param connection the connection object to be associated with
+ * the channel. Call Channel::close() to close the channel.
+ */
+ void openChannel(Channel&);
+
+
+ // TODO aconway 2007-01-26: can these be private?
+ void send(framing::AMQFrame*);
+ void received(framing::AMQFrame*);
+ void idleOut();
+ void idleIn();
+ void shutdown();
+
+ /**\internal used for testing */
+ void setConnector(Connector& connector);
+
+ /**
+ * @return the maximum frame size in use on this connection
+ */
+ inline uint32_t getMaxFrameSize(){ return max_frame_size; }
+
+ /** @return protocol version in use on this connection. */
+ framing::ProtocolVersion getVersion() const { return version; }
+};
+
+}} // namespace qpid::client
+
+
+#endif