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Diffstat (limited to 'sca-cpp/branches/lightweight-sca/modules/java/mod-java.cpp')
-rw-r--r-- | sca-cpp/branches/lightweight-sca/modules/java/mod-java.cpp | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/sca-cpp/branches/lightweight-sca/modules/java/mod-java.cpp b/sca-cpp/branches/lightweight-sca/modules/java/mod-java.cpp new file mode 100644 index 0000000000..d96861cc6d --- /dev/null +++ b/sca-cpp/branches/lightweight-sca/modules/java/mod-java.cpp @@ -0,0 +1,83 @@ +/* + * 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. + */ + +/* $Rev$ $Date$ */ + +/** + * HTTPD module used to eval Java component implementations. + */ + +#define WANT_HTTPD_LOG 1 +#include "string.hpp" +#include "function.hpp" +#include "list.hpp" +#include "value.hpp" +#include "monad.hpp" +#include "../server/mod-cpp.hpp" +#include "../server/mod-eval.hpp" +#include "mod-java.hpp" + +namespace tuscany { +namespace server { +namespace modeval { + +/** + * Apply a lifecycle start or restart event. + */ +struct javaLifecycle { + javaLifecycle(java::JavaRuntime& jr) : jr(jr) { + } + const value operator()(const list<value>& params) const { + const value func = car(params); + if (func == "javaRuntime") + return (gc_ptr<value>)(value*)(void*)&jr; + return lambda<value(const list<value>&)>(); + } + java::JavaRuntime& jr; +}; + +const value applyLifecycle(unused const list<value>& params) { + + // Create a Java runtime + java::JavaRuntime& jr = *(new (gc_new<java::JavaRuntime>()) java::JavaRuntime()); + + // Return the function to invoke on subsequent events + return failable<value>(lambda<value(const list<value>&)>(javaLifecycle(jr))); +} + +/** + * 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, const lambda<value(const list<value>&)>& lifecycle) { + const string itype(elementName(impl)); + if (contains(itype, ".java")) { + const void* p = (gc_ptr<value>)lifecycle(mklist<value>("javaRuntime")); + return modjava::evalImplementation(path, impl, px, *(java::JavaRuntime*)p); + } + if (contains(itype, ".cpp")) + return modcpp::evalImplementation(path, impl, px); + if (contains(itype, ".widget")) + return mkfailure<lambda<value(const list<value>&)> >(string("Unsupported implementation type: ") + itype, -1, false); + return mkfailure<lambda<value(const list<value>&)> >(string("Unsupported implementation type: ") + itype); +} + +} +} +} |