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-rw-r--r-- | sca-cpp/branches/lightweight-sca/components/chat/chat-sender2.cpp | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/sca-cpp/branches/lightweight-sca/components/chat/chat-sender2.cpp b/sca-cpp/branches/lightweight-sca/components/chat/chat-sender2.cpp new file mode 100644 index 0000000000..0e00728022 --- /dev/null +++ b/sca-cpp/branches/lightweight-sca/components/chat/chat-sender2.cpp @@ -0,0 +1,116 @@ +/* + * 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. + */ + +#define WANT_HTTPD_LOG 1 +#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>(c); + + // Post the message + const failable<bool> r = post(vto, vmsg, xc); + if (!hasContent(r)) + return mkfailure<value>(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 mkfailure<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>(); +} + +} |