681567b281
git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1222604 13f79535-47bb-0310-9956-ffa450edef68
100 lines
2.8 KiB
C++
100 lines
2.8 KiB
C++
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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/* $Rev$ $Date$ */
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/**
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* HTTP client component implementation.
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*/
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#define WANT_HTTPD_LOG 1
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#include "string.hpp"
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#include "function.hpp"
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#include "list.hpp"
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#include "value.hpp"
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#include "monad.hpp"
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#include "parallel.hpp"
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#include "../../modules/http/http.hpp"
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namespace tuscany {
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namespace httpget {
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/**
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* Evaluate an HTTP get.
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*/
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const failable<value> get(const lambda<value(const list<value>&)> url, http::CURLSession& ch) {
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debug("httpget::get");
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const value u = url(mklist<value>("get", list<value>()));
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debug(u, "httpget::get::url");
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return http::get(u, ch);
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}
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/**
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* Component implementation lambda function.
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*/
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class applyhttp {
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public:
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applyhttp(const lambda<value(const list<value>&)> url, const perthread_ptr<http::CURLSession>& ch) : url(url), ch(ch) {
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}
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const value operator()(const list<value>& params) const {
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debug(params, "httpget::applyhttp::params");
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const value func(car(params));
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if (func == "get")
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return get(url, *ch);
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return tuscany::mkfailure<tuscany::value>();
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}
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private:
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const lambda<value(const list<value>&)> url;
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perthread_ptr<http::CURLSession> ch;
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};
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/**
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* Create a new CURL session.
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*/
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const gc_ptr<http::CURLSession> newsession() {
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return new (gc_new<http::CURLSession>()) http::CURLSession("", "", "", "");
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}
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/**
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* Start the component.
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*/
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const failable<value> start(const list<value>& params) {
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// Create a CURL session
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const perthread_ptr<http::CURLSession> ch = perthread_ptr<http::CURLSession>(lambda<gc_ptr<http::CURLSession>()>(newsession));
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// Return the component implementation lambda function
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return value(lambda<value(const list<value>&)>(applyhttp(car(params), ch)));
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}
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}
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}
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extern "C" {
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const tuscany::value apply(const tuscany::list<tuscany::value>& params) {
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const tuscany::value func(car(params));
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if (func == "start")
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return tuscany::httpget::start(cdr(params));
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return tuscany::mkfailure<tuscany::value>();
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}
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}
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