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-rw-r--r-- | sca-cpp/branches/gcc-4.4/modules/java/mod-java.hpp | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/sca-cpp/branches/gcc-4.4/modules/java/mod-java.hpp b/sca-cpp/branches/gcc-4.4/modules/java/mod-java.hpp new file mode 100644 index 0000000000..e7da06e930 --- /dev/null +++ b/sca-cpp/branches/gcc-4.4/modules/java/mod-java.hpp @@ -0,0 +1,77 @@ +/* + * 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_modjava_hpp +#define tuscany_modjava_hpp + +/** + * Evaluation functions used by mod-eval to evaluate Java + * 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 modjava { + +/** + * Apply a Java component implementation function. + */ +struct applyImplementation { + java::JavaClass impl; + const list<value> px; + java::JavaRuntime& jr; + applyImplementation(const java::JavaClass& impl, const list<value>& px, java::JavaRuntime& jr) : impl(impl), px(px), jr(jr) { + } + const value operator()(const list<value>& params) const { + const value expr = append<value>(params, px); + debug(expr, "modeval::java::applyImplementation::input"); + const failable<value> res = java::evalClass(jr, expr, impl); + const value val = !hasContent(res)? mklist<value>(value(), reason(res)) : mklist<value>(content(res)); + debug(val, "modeval::java::applyImplementation::result"); + return val; + } +}; + +/** + * Evaluate a Java 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, java::JavaRuntime& jr) { + const string cn(attributeValue("class", impl)); + const failable<java::JavaClass> jc = java::readClass(jr, path, cn); + if (!hasContent(jc)) + return mkfailure<lambda<value(const list<value>&)> >(reason(jc)); + return lambda<value(const list<value>&)>(applyImplementation(content(jc), px, jr)); +} + +} +} +} + +#endif /* tuscany_modjava_hpp */ |