/*
 * 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 "SessionHandler.h"
#include "SessionState.h"
#include "Connection.h"
#include "qpid/log/Statement.h"

#include <boost/bind.hpp>

namespace qpid {
namespace broker {
using namespace framing;
using namespace std;
using namespace qpid::sys;

SessionHandler::SessionHandler(Connection& c, ChannelId ch)
    : amqp_0_10::SessionHandler(&c.getOutput(), ch),
      connection(c), 
      proxy(out)
{}

SessionHandler::~SessionHandler() {}

namespace {
ClassId classId(AMQMethodBody* m) { return m ? m->amqpMethodId() : 0; }
MethodId methodId(AMQMethodBody* m) { return m ? m->amqpClassId() : 0; }
} // namespace

void SessionHandler::channelException(uint16_t, const std::string&) {
        handleDetach();
}

void SessionHandler::connectionException(uint16_t code, const std::string& msg) {
    connection.close(code, msg, 0, 0);
}

ConnectionState& SessionHandler::getConnection() { return connection; }

const ConnectionState& SessionHandler::getConnection() const { return connection; }

void SessionHandler::handleDetach() {
    amqp_0_10::SessionHandler::handleDetach();
    assert(&connection.getChannel(channel.get()) == this);
    if (session.get())
        connection.getBroker().getSessionManager().detach(session);
    assert(!session.get());
    connection.closeChannel(channel.get()); 
}

void SessionHandler::setState(const std::string& name, bool force) {
    assert(!session.get());
    SessionId id(connection.getUserId(), name);
    session = connection.broker.getSessionManager().attach(*this, id, force);
}

FrameHandler* SessionHandler::getInHandler() { return session.get() ? &session->in : 0; }
qpid::SessionState* SessionHandler::getState() { return session.get(); }

void SessionHandler::readyToSend() {
    if (session.get()) session->readyToSend();
}

// TODO aconway 2008-05-12: hacky - handle attached for bridge clients.
// We need to integrate the client code so we can run a real client
// in the bridge.
// 
void SessionHandler::attached(const std::string& name) {
    if (session.get())
        checkName(name);
    else {
        SessionId id(connection.getUserId(), name);
        SessionState::Configuration config = connection.broker.getSessionManager().getSessionConfig();
        session.reset(new SessionState(connection.getBroker(), *this, id, config));
}
}
    
}} // namespace qpid::broker
