summaryrefslogtreecommitdiffstats
path: root/sca-cpp/branches/lightweight-sca/components/http/httpget.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'sca-cpp/branches/lightweight-sca/components/http/httpget.cpp')
-rw-r--r--sca-cpp/branches/lightweight-sca/components/http/httpget.cpp108
1 files changed, 108 insertions, 0 deletions
diff --git a/sca-cpp/branches/lightweight-sca/components/http/httpget.cpp b/sca-cpp/branches/lightweight-sca/components/http/httpget.cpp
new file mode 100644
index 0000000000..884dc1a6ff
--- /dev/null
+++ b/sca-cpp/branches/lightweight-sca/components/http/httpget.cpp
@@ -0,0 +1,108 @@
+/*
+ * 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.
+ */
+
+/* $Rev$ $Date$ */
+
+/**
+ * HTTP client component implementation.
+ */
+
+#define WANT_HTTPD_LOG 1
+#include "string.hpp"
+#include "function.hpp"
+#include "list.hpp"
+#include "value.hpp"
+#include "monad.hpp"
+#include "parallel.hpp"
+#include "../../modules/http/http.hpp"
+
+namespace tuscany {
+namespace httpget {
+
+/**
+ * Evaluate an HTTP get.
+ */
+const failable<value> get(const lambda<value(const list<value>&)>& url, http::CURLSession& ch) {
+ debug("httpget::get");
+ const value u = url(mklist<value>("get", list<value>()));
+ debug(u, "httpget::get::url");
+ return http::get(u, ch);
+}
+
+/**
+ * Component implementation lambda function.
+ */
+class applyhttp {
+public:
+ applyhttp(const lambda<value(const list<value>&)>& url, const perthread_ptr<http::CURLSession>& ch) : url(url), ch(ch) {
+ }
+
+ const value operator()(const list<value>& params) const {
+ debug(params, "httpget::applyhttp::params");
+ const value func(car(params));
+ if (func == "get")
+ return get(url, *ch);
+ return mkfailure<value>();
+ }
+
+private:
+ const lambda<value(const list<value>&)> url;
+ perthread_ptr<http::CURLSession> ch;
+};
+
+
+/**
+ * Create a new CURL session.
+ */
+class newsession {
+public:
+ newsession(const lambda<value(const list<value>&)>& timeout) : timeout(timeout) {
+ }
+ const gc_ptr<http::CURLSession> operator()() const {
+ const int t = atoi(c_str((string)timeout(list<value>())));
+ return new (gc_new<http::CURLSession>()) http::CURLSession("", "", "", "", t);
+ }
+private:
+ const lambda<value(const list<value>&)> timeout;
+};
+
+/**
+ * Start the component.
+ */
+const failable<value> start(const list<value>& params) {
+ // Create a CURL session
+ const perthread_ptr<http::CURLSession> ch = perthread_ptr<http::CURLSession>(lambda<gc_ptr<http::CURLSession>()>(newsession(cadr(params))));
+
+ // Return the component implementation lambda function
+ return value(lambda<value(const list<value>&)>(applyhttp(car(params), ch)));
+}
+
+}
+}
+
+extern "C" {
+
+const tuscany::value apply(const tuscany::list<tuscany::value>& params) {
+ const tuscany::value func(car(params));
+ if (func == "start")
+ return tuscany::httpget::start(cdr(params));
+ return tuscany::mkfailure<tuscany::value>();
+}
+
+}