1 files changed, 76 insertions, 0 deletions
diff --git a/sandbox/ant/container.python/src/main/java/org/apache/tuscany/container/python/PythonComponentTypeLoader.java b/sandbox/ant/container.python/src/main/java/org/apache/tuscany/container/python/PythonComponentTypeLoader.java
new file mode 100644
index 0000000000..1f1456594e
--- /dev/null
+++ b/sandbox/ant/container.python/src/main/java/org/apache/tuscany/container/python/PythonComponentTypeLoader.java
@@ -0,0 +1,76 @@
+/*
+ * 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.    
+ */
+package org.apache.tuscany.container.python;
+
+import java.net.URL;
+
+import org.apache.tuscany.spi.component.CompositeComponent;
+import org.apache.tuscany.spi.deployer.DeploymentContext;
+import org.apache.tuscany.spi.extension.ComponentTypeLoaderExtension;
+import org.apache.tuscany.spi.loader.LoaderException;
+import org.apache.tuscany.spi.model.ComponentType;
+
+/**
+ * ComponentType loader for Python components
+ */
+public class PythonComponentTypeLoader extends ComponentTypeLoaderExtension<PythonImplementation> {
+
+    public PythonComponentTypeLoader() {
+    }
+
+    @Override
+    protected Class<PythonImplementation> getImplementationClass() {
+        return PythonImplementation.class;
+    }
+
+    protected String getResourceName(PythonImplementation implementation) {
+        return implementation.getJythonScript().getModuleName();
+    }
+
+    // TODO: must be possible to move all the following up in to ComponentTypeLoaderExtension
+
+    public void load(CompositeComponent parent, PythonImplementation implementation, DeploymentContext deploymentContext) throws LoaderException {
+        String sideFile = getSideFileName(implementation);
+        URL resource = implementation.getJythonScript().getClassLoader().getResource(sideFile);
+        PythonComponentType componentType;
+        if (resource == null) {
+            throw new IllegalArgumentException("missing .componentType side file: " + sideFile);
+            // TODO: or else implement intospection
+        } else {
+            componentType = loadFromSidefile(resource, deploymentContext);
+        }
+        implementation.setComponentType(componentType);
+    }
+
+    protected PythonComponentType loadFromSidefile(URL url, DeploymentContext deploymentContext) throws LoaderException {
+        ComponentType ct = loaderRegistry.load(null, url, ComponentType.class, deploymentContext);
+        PythonComponentType pythonComponentType = new PythonComponentType(ct);
+        return pythonComponentType;
+    }
+
+    protected String getSideFileName(PythonImplementation implementation) {
+        String baseName = getResourceName(implementation);
+        int lastDot = baseName.lastIndexOf('.');
+        if (lastDot != -1) {
+            baseName = baseName.substring(0, lastDot);
+        }
+        return baseName + ".componentType";
+    }
+
+}