From c9bfccc35345ce58fb5774d4b0b6a9868b262c0a Mon Sep 17 00:00:00 2001
From: giorgio <giorgio@13f79535-47bb-0310-9956-ffa450edef68>
Date: Wed, 5 Sep 2012 08:31:30 +0000
Subject: git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1381061
 13f79535-47bb-0310-9956-ffa450edef68

---
 .../lightweight-sca/modules/java/mod-java.hpp      | 77 ++++++++++++++++++++++
 1 file changed, 77 insertions(+)
 create mode 100644 sca-cpp/branches/lightweight-sca/modules/java/mod-java.hpp

(limited to 'sca-cpp/branches/lightweight-sca/modules/java/mod-java.hpp')

diff --git a/sca-cpp/branches/lightweight-sca/modules/java/mod-java.hpp b/sca-cpp/branches/lightweight-sca/modules/java/mod-java.hpp
new file mode 100644
index 0000000000..b68f17aa3f
--- /dev/null
+++ b/sca-cpp/branches/lightweight-sca/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), rcode(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>&)> >(jc);
+    return lambda<value(const list<value>&)>(applyImplementation(content(jc), px, jr));
+}
+
+}
+}
+}
+
+#endif /* tuscany_modjava_hpp */
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