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Diffstat (limited to '')
-rw-r--r-- | sca-cpp/trunk/components/cache/mcache.cpp | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/sca-cpp/trunk/components/cache/mcache.cpp b/sca-cpp/trunk/components/cache/mcache.cpp new file mode 100644 index 0000000000..af51f508e2 --- /dev/null +++ b/sca-cpp/trunk/components/cache/mcache.cpp @@ -0,0 +1,104 @@ +/* + * 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. + */ + +/* $Rev$ $Date$ */ + +/** + * memcached-based cache component implementation. + */ + +#include <apr_uuid.h> + +#include <string> + +#include "function.hpp" +#include "list.hpp" +#include "value.hpp" +#include "monad.hpp" +#include "mcache.hpp" + +namespace tuscany { +namespace cache { + +cache::MemCached ch; + +/** + * Get an item from the cache. + */ +const failable<value, std::string> get(const list<value>& params) { + return cache::get(car(params), ch); +} + +const value uuidValue() { + apr_uuid_t uuid; + apr_uuid_get(&uuid); + char buf[APR_UUID_FORMATTED_LENGTH]; + apr_uuid_format(buf, &uuid); + return value(std::string(buf, APR_UUID_FORMATTED_LENGTH)); +} + +/** + * Post an item to the cache. + */ +const failable<value, std::string> post(const list<value>& params) { + const value id = uuidValue(); + const failable<bool, std::string> val = cache::post(id, car(params), ch); + if (!hasContent(val)) + return mkfailure<value, std::string>(reason(val)); + return id; +} + +/** + * Put an item into the cache. + */ +const failable<value, std::string> put(const list<value>& params) { + const failable<bool, std::string> val = cache::put(car(params), cadr(params), ch); + if (!hasContent(val)) + return mkfailure<value, std::string>(reason(val)); + return value(content(val)); +} + +/** + * Delete an item from the cache. + */ +const failable<value, std::string> del(const list<value>& params) { + const failable<bool, std::string> val = cache::del(car(params), ch); + if (!hasContent(val)) + return mkfailure<value, std::string>(reason(val)); + return value(content(val)); +} + +} +} + +extern "C" { + +const tuscany::failable<tuscany::value, std::string> eval(const tuscany::value& func, const tuscany::list<tuscany::value>& params) { + if (func == "get") + return tuscany::cache::get(params); + if (func == "post") + return tuscany::cache::post(params); + if (func == "put") + return tuscany::cache::put(params); + if (func == "del") + return tuscany::cache::del(params); + return tuscany::mkfailure<tuscany::value, std::string>(std::string("Function not supported: ") + std::string(func)); +} + +} |