diff options
author | jsdelfino <jsdelfino@13f79535-47bb-0310-9956-ffa450edef68> | 2010-12-25 01:49:19 +0000 |
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committer | jsdelfino <jsdelfino@13f79535-47bb-0310-9956-ffa450edef68> | 2010-12-25 01:49:19 +0000 |
commit | dc15dc32bb3348c760ba3643c083af7e0c8e43fe (patch) | |
tree | 2823b9165d5c3a8a1bc96b3d071f86101bb995b4 /sandbox/sebastien/cpp/apr-2/modules/python/mod-python.hpp | |
parent | 088b2e47386078c79781a448e0b6e458ddaae23c (diff) |
Create a sandbox branch to experiment with latest APR.
git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1052740 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'sandbox/sebastien/cpp/apr-2/modules/python/mod-python.hpp')
-rw-r--r-- | sandbox/sebastien/cpp/apr-2/modules/python/mod-python.hpp | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/sandbox/sebastien/cpp/apr-2/modules/python/mod-python.hpp b/sandbox/sebastien/cpp/apr-2/modules/python/mod-python.hpp new file mode 100644 index 0000000000..0121779530 --- /dev/null +++ b/sandbox/sebastien/cpp/apr-2/modules/python/mod-python.hpp @@ -0,0 +1,80 @@ +/* + * 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. + */ + +/* $Rev$ $Date$ */ + +#ifndef tuscany_modpython_hpp +#define tuscany_modpython_hpp + +/** + * Evaluation functions used by mod-eval to evaluate Python + * component implementations. + */ + +#include "string.hpp" +#include "stream.hpp" +#include "function.hpp" +#include "list.hpp" +#include "value.hpp" +#include "monad.hpp" +#include "eval.hpp" + +namespace tuscany { +namespace server { +namespace modpython { + +/** + * Apply a Python component implementation function. + */ +struct applyImplementation { + PyObject* impl; + const list<value> px; + applyImplementation(PyObject* impl, const list<value>& px) : impl(impl), px(px) { + } + const value operator()(const list<value>& params) const { + const value expr = append<value>(params, px); + debug(expr, "modeval::python::applyImplementation::input"); + const failable<value> res = python::evalScript(expr, impl); + const value val = !hasContent(res)? mklist<value>(value(), reason(res)) : mklist<value>(content(res)); + debug(val, "modeval::python::applyImplementation::result"); + return val; + } +}; + +/** + * Evaluate a Python component implementation and convert it to an applicable + * lambda function. + */ +const failable<lambda<value(const list<value>&)> > evalImplementation(const string& path, const value& impl, const list<value>& px) { + const string spath(attributeValue("script", impl)); + const string fpath(path + spath); + ifstream is(fpath); + if (fail(is)) + return mkfailure<lambda<value(const list<value>&)> >(string("Could not read implementation: ") + fpath); + const failable<PyObject*> script = python::readScript(python::moduleName(spath), fpath, is); + if (!hasContent(script)) + return mkfailure<lambda<value(const list<value>&)> >(reason(script)); + return lambda<value(const list<value>&)>(applyImplementation(content(script), px)); +} + +} +} +} + +#endif /* tuscany_modpython_hpp */ |