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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.
+ */
+
+/* $Rev$ $Date$ */
+
+/**
+ * Catalog component implementation.
+ */
+
+#include "string.hpp"
+#include "function.hpp"
+#include "list.hpp"
+#include "value.hpp"
+#include "monad.hpp"
+
+namespace tuscany {
+namespace store {
+
+/**
+ * Returns the catalog.
+ */
+struct convert {
+ const lambda<value(const list<value>&)> converter;
+ const string currency;
+ convert(const lambda<value(const list<value>&)>& converter, const string& currency) : converter(converter), currency(currency) {
+ }
+ const value operator()(const value& price) const {
+ return converter(mklist<value>("convert", string("USD"), currency, price));
+ }
+};
+
+const list<value> mkfruit(const string& name, const string& code, const string& symbol, const double price) {
+ return list<value>() +
+ mklist<value>("name", name) + mklist<value>("currencyCode", code) + mklist<value>("currencySymbol", symbol) + mklist<value>("price", price);
+}
+
+const failable<value> items(const lambda<value(const list<value>&)>& converter, const lambda<value(const list<value>&)>& currencyCode) {
+ const string currency(currencyCode(list<value>()));
+ const string symbol(converter(mklist<value>("symbol", currency)));
+ const lambda<value(const value&)> conv(convert(converter, currency));
+
+ return value(list<value>() +
+ mkfruit("Apple", currency, symbol, conv(2.99)) +
+ mkfruit("Orange", currency, symbol, conv(3.55)) +
+ mkfruit("Pear", currency, symbol, conv(1.55)));
+}
+
+}
+}
+
+extern "C" {
+
+const tuscany::value apply(const tuscany::list<tuscany::value>& params) {
+ const tuscany::value func(car(params));
+ if (func == "items")
+ return tuscany::store::items(cadr(params), caddr(params));
+ return tuscany::mkfailure<tuscany::value>();
+}
+
+}