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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.
*/
/* $Rev$ $Date$ */
/**
* XMPP chat sender component implementation.
* This sender gets its configuration from a single property and its
* input data from component references instead of function parameters.
*/
#include "string.hpp"
#include "function.hpp"
#include "list.hpp"
#include "value.hpp"
#include "monad.hpp"
#include "parallel.hpp"
#include "xmpp.hpp"
namespace tuscany {
namespace chat {
namespace sender {
/**
* Post an item to an XMPP JID.
*/
const failable<value> post(const lambda<value(const list<value>&)> jid, const lambda<value(const list<value>&)> pass, const lambda<value(const list<value>&)> to, const lambda<value(const list<value>&)> msg, const list<value>& params) {
const value vjid = jid(mklist<value>("get", params));
const value vpass = pass(mklist<value>("get", params));
const value vto = to(mklist<value>("get", params));
const value vmsg = msg(mklist<value>("get", params));
debug(vjid, "chat::post::from");
debug(vto, "chat::post::to");
debug(vmsg, "chat::post::value");
// Create an XMPP client session
XMPPClient xc(vjid, vpass);
const failable<bool> c = connect(xc);
if (!hasContent(c))
return mkfailure<value>(reason(c));
// Post the message
const failable<bool> r = post(vto, vmsg, xc);
if (!hasContent(r))
return mkfailure<value>(reason(r));
return value(mklist<value>(vto));
}
/**
* Chat sender component lambda function
*/
class chatSender {
public:
chatSender(const lambda<value(const list<value>&)> jid, const lambda<value(const list<value>&)> pass, const lambda<value(const list<value>&)> to, const lambda<value(const list<value>&)> msg) : jid(jid), pass(pass), to(to), msg(msg) {
}
const value operator()(const list<value>& params) const {
const tuscany::value func(car(params));
if (func == "get")
return post(jid, pass, to, msg, cdr(params));
// Stop the chat sender component
if (func != "stop")
return tuscany::mkfailure<tuscany::value>();
debug("chat::sender::stop");
return failable<value>(value(lambda<value(const list<value>&)>()));
}
private:
const lambda<value(const list<value>&)> jid;
const lambda<value(const list<value>&)> pass;
const lambda<value(const list<value>&)> to;
const lambda<value(const list<value>&)> msg;
};
/**
* Start the component.
*/
const failable<value> start(const list<value>& params) {
// Return the chat sender component lambda function
return value(lambda<value(const list<value>&)>(chatSender(car(params), cadr(params), caddr(params), cadddr(params))));
}
}
}
}
extern "C" {
const tuscany::value apply(const tuscany::list<tuscany::value>& params) {
const tuscany::value func(car(params));
if (func == "start")
return tuscany::chat::sender::start(cdr(params));
return tuscany::mkfailure<tuscany::value>();
}
}
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