Move Tuscany from Incubator to top level.

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@668359 13f79535-47bb-0310-9956-ffa450edef68

11 files changed, 861 insertions, 0 deletions

diff --git a/sandbox/ant/container.easy/src/main/java/org/apache/tuscany/container/easy/AsyncInvoker.java b/sandbox/ant/container.easy/src/main/java/org/apache/tuscany/container/easy/AsyncInvoker.java
new file mode 100644
index 0000000000..e5786e8a51
--- /dev/null
+++ b/sandbox/ant/container.easy/src/main/java/org/apache/tuscany/container/easy/AsyncInvoker.java
@@ -0,0 +1,210 @@
+/*

+ * 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.easy;

+

+import java.lang.reflect.InvocationTargetException;

+

+import org.apache.tuscany.spi.component.TargetException;

+import org.apache.tuscany.spi.component.WorkContext;

+import org.apache.tuscany.spi.services.work.WorkScheduler;

+import org.apache.tuscany.spi.wire.InboundWire;

+import org.apache.tuscany.spi.wire.InvocationRuntimeException;

+import org.apache.tuscany.spi.wire.Message;

+import org.apache.tuscany.spi.wire.TargetInvoker;

+import org.osoa.sca.CompositeContext;

+import org.osoa.sca.CurrentCompositeContext;

+import org.osoa.sca.SCA;

+import org.osoa.sca.ServiceRuntimeException;

+

+/**

+ * Responsible for performing a non-blocking dispatch on a component implementation instance

+ * 

+ * TODO: Pretty much a direct copy of what the groovy container does for async

+ */

+public class AsyncInvoker extends EasyInvoker {

+

+    private static final ContextBinder BINDER = new ContextBinder();

+    private static final Message RESPONSE = new AsyncInvoker.ImmutableMessage();

+

+    private InboundWire wire;

+    private WorkScheduler workScheduler;

+    private AsyncMonitor monitor;

+    private WorkContext workContext;

+    private Object target;

+    private Object messageId;

+

+    /**

+     * Creates a new invoker

+     *

+     * @param operation     the operation the invoker is associated with

+     * @param wire

+     * @param component     the target component

+     * @param workScheduler the work scheduler to run the invocation

+     * @param monitor       the monitor to pass events to

+     * @param workContext

+     */

+    public AsyncInvoker(String operation,

+                              InboundWire wire,

+                              EasyComponent component,

+                              WorkScheduler workScheduler,

+                              AsyncMonitor monitor,

+                              WorkContext workContext) {

+        super(operation, component);

+        this.wire = wire;

+        this.workScheduler = workScheduler;

+        this.monitor = monitor;

+        this.workContext = workContext;

+    }

+

+    // Override invocation methods to defer invocation to work item

+    // Both methods return null to indicate asynchrony; result will

+    // be conveyed by callback

+    @Override

+    public Object invokeTarget(final Object payload) throws InvocationTargetException {

+        final CompositeContext currentContext = CurrentCompositeContext.getContext();

+        // Schedule the invocation of the next interceptor in a new Work instance

+        try {

+            workScheduler.scheduleWork(new Runnable() {

+                private Object currentMessageId = messageId;

+

+                public void run() {

+                    workContext.setCurrentMessageId(null);

+                    workContext.setCurrentCorrelationId(currentMessageId);

+                    CompositeContext oldContext = CurrentCompositeContext.getContext();

+                    try {

+                        BINDER.setContext(currentContext);

+                        // REVIEW response must be null for one-way and non-null for callback

+                        AsyncInvoker.super.invokeTarget(payload);

+                    } catch (Exception e) {

+                        // REVIEW uncomment when it is available

+                        // monitor.executionError(e);

+                        e.printStackTrace();

+                    } finally {

+                        BINDER.setContext(oldContext);

+                    }

+                }

+            });

+        } catch (Exception e) {

+            throw new ServiceRuntimeException(e);

+        }

+        return RESPONSE;

+    }

+

+    public Message invoke(Message msg) throws InvocationRuntimeException {

+        // can't just call overriden invoke because it would bypass async

+        try {

+            messageId = msg.getMessageId();

+            wire.addMapping(messageId, msg.getFromAddress());

+            return (Message) invokeTarget(msg.getBody());

+        } catch (Throwable e) {

+            // FIXME need to log exceptions

+            e.printStackTrace();

+            return null;

+        }

+    }

+

+    public AsyncInvoker clone() {

+        AsyncInvoker invoker = (AsyncInvoker) super.clone();

+        invoker.workScheduler = this.workScheduler;

+        invoker.monitor = this.monitor;

+        return invoker;

+    }

+

+    /**

+     * Resolves the target service instance or returns a cached one

+     */

+    protected Object getInstance() throws TargetException {

+        if (!isCacheable()) {

+            return component.getTargetInstance();

+        } else {

+            if (target == null) {

+                target = component.getTargetInstance();

+            }

+            return target;

+        }

+    }

+

+    protected static class ContextBinder extends SCA {

+        public void setContext(CompositeContext context) {

+            setCompositeContext(context);

+        }

+

+        public void start() {

+            throw new AssertionError();

+        }

+

+        public void stop() {

+            throw new AssertionError();

+        }

+    }

+

+    /**

+     * A dummy message passed back on an invocation

+     */

+    protected static class ImmutableMessage implements Message {

+

+        public Object getBody() {

+            return null;

+        }

+

+        public void setBody(Object body) {

+            throw new UnsupportedOperationException();

+        }

+

+        public void setTargetInvoker(TargetInvoker invoker) {

+            throw new UnsupportedOperationException();

+        }

+

+        public TargetInvoker getTargetInvoker() {

+            return null;

+        }

+

+        public Object getFromAddress() {

+            return null;

+        }

+

+        public void setFromAddress(Object fromAddress) {

+            throw new UnsupportedOperationException();

+        }

+

+        public Object getMessageId() {

+            return null;

+        }

+

+        public void setMessageId(Object messageId) {

+            throw new UnsupportedOperationException();

+        }

+

+        public Object getCorrelationId() {

+            return null;

+        }

+

+        public void setCorrelationId(Object correlationId) {

+            throw new UnsupportedOperationException();

+        }

+

+        public boolean isFault() {

+            return false;

+        }

+

+        public void setBodyWithFault(Object fault) {

+            throw new UnsupportedOperationException();

+        }

+    }

+}

diff --git a/sandbox/ant/container.easy/src/main/java/org/apache/tuscany/container/easy/AsyncMonitor.java b/sandbox/ant/container.easy/src/main/java/org/apache/tuscany/container/easy/AsyncMonitor.java
new file mode 100644
index 0000000000..ce39877dff
--- /dev/null
+++ b/sandbox/ant/container.easy/src/main/java/org/apache/tuscany/container/easy/AsyncMonitor.java
@@ -0,0 +1,31 @@
+/*

+ * 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.easy;

+

+/**

+ * A monitor used to log events during non-blocking invocations

+ */

+public interface AsyncMonitor {

+

+    /**

+     * Logs an exception thrown during an invocation

+     */

+    void executionError(Exception e);

+

+}

diff --git a/sandbox/ant/container.easy/src/main/java/org/apache/tuscany/container/easy/EasyComponent.java b/sandbox/ant/container.easy/src/main/java/org/apache/tuscany/container/easy/EasyComponent.java
new file mode 100644
index 0000000000..62e812a782
--- /dev/null
+++ b/sandbox/ant/container.easy/src/main/java/org/apache/tuscany/container/easy/EasyComponent.java
@@ -0,0 +1,117 @@
+/*
+ * 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.easy;
+
+import static org.apache.tuscany.spi.idl.java.JavaIDLUtils.findMethod;
+
+import java.lang.reflect.Method;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.apache.tuscany.spi.ObjectCreationException;
+import org.apache.tuscany.spi.component.CompositeComponent;
+import org.apache.tuscany.spi.component.ScopeContainer;
+import org.apache.tuscany.spi.component.TargetException;
+import org.apache.tuscany.spi.component.WorkContext;
+import org.apache.tuscany.spi.extension.AtomicComponentExtension;
+import org.apache.tuscany.spi.model.Operation;
+import org.apache.tuscany.spi.services.work.WorkScheduler;
+import org.apache.tuscany.spi.wire.InboundWire;
+import org.apache.tuscany.spi.wire.OutboundWire;
+import org.apache.tuscany.spi.wire.TargetInvoker;
+import org.apache.tuscany.spi.wire.WireService;
+
+/**
+ * A component implementation for script languages.
+ */
+public class EasyComponent extends AtomicComponentExtension {
+
+    private final List<Class<?>> services;
+
+    private final Map<String, Object> properties;
+
+    protected EasyInstanceFactory instanceFactory;
+
+    public EasyComponent(String name, EasyInstanceFactory instanceFactory, Map<String, Object> properties, List<Class<?>> services, CompositeComponent parent, ScopeContainer scopeContainer,
+            WireService wireService, WorkContext workContext, WorkScheduler workScheduler) {
+
+        super(name, parent, scopeContainer, wireService, workContext, workScheduler, 0);
+
+        this.instanceFactory = instanceFactory;
+        this.services = services;
+        this.scope = scopeContainer.getScope();
+        this.properties = properties;
+    }
+
+    @SuppressWarnings("unchecked")
+    public Object createInstance() throws ObjectCreationException {
+
+        Map<String, Object> context = new HashMap<String, Object>(getProperties());
+
+        for (List<OutboundWire> referenceWires : getOutboundWires().values()) {
+            for (OutboundWire wire : referenceWires) {
+                Object wireProxy = wireService.createProxy(wire);
+                context.put(wire.getReferenceName(), wireProxy);
+            }
+        }
+
+        return instanceFactory.createInstance(services, context);
+    }
+
+    public TargetInvoker createTargetInvoker(String targetName, Operation operation) {
+        Method[] methods = operation.getServiceContract().getInterfaceClass().getMethods();
+        Method method = findMethod(operation, methods);
+        return new EasyInvoker(method.getName(), this);
+    }
+
+    public TargetInvoker createAsyncTargetInvoker(InboundWire wire, Operation operation) {
+        return new AsyncInvoker(operation.getName(), wire, this, workScheduler, null, workContext);
+    }
+
+    // TODO: move all the following up to AtomicComponentExtension?
+
+    public List<Class<?>> getServiceInterfaces() {
+        return services;
+    }
+
+    public Map<String, Object> getProperties() {
+        return properties;
+    }
+
+    public Object getTargetInstance() throws TargetException {
+        return scopeContainer.getInstance(this);
+    }
+
+    public Object getServiceInstance() throws TargetException {
+        return getServiceInstance(null);
+    }
+
+    @SuppressWarnings("unchecked")
+    public Object getServiceInstance(String service) throws TargetException {
+        InboundWire wire = getInboundWire(service);
+        if (wire == null) {
+            TargetException e = new TargetException("ServiceDefinition not found"); // TODO better error message
+            e.setIdentifier(service);
+            throw e;
+        }
+        return wireService.createProxy(wire);
+    }
+
+}
diff --git a/sandbox/ant/container.easy/src/main/java/org/apache/tuscany/container/easy/EasyComponentBuilder.java b/sandbox/ant/container.easy/src/main/java/org/apache/tuscany/container/easy/EasyComponentBuilder.java
new file mode 100644
index 0000000000..fd46c77934
--- /dev/null
+++ b/sandbox/ant/container.easy/src/main/java/org/apache/tuscany/container/easy/EasyComponentBuilder.java
@@ -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.    
+ */
+package org.apache.tuscany.container.easy;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.apache.tuscany.spi.builder.BuilderConfigException;
+import org.apache.tuscany.spi.component.Component;
+import org.apache.tuscany.spi.component.CompositeComponent;
+import org.apache.tuscany.spi.component.ScopeContainer;
+import org.apache.tuscany.spi.deployer.DeploymentContext;
+import org.apache.tuscany.spi.extension.ComponentBuilderExtension;
+import org.apache.tuscany.spi.model.ComponentDefinition;
+import org.apache.tuscany.spi.model.PropertyValue;
+import org.apache.tuscany.spi.model.Scope;
+import org.apache.tuscany.spi.model.ServiceDefinition;
+
+/**
+ * Extension point for creating {@link ScriptComponent}s from an assembly configuration
+ */
+public class EasyComponentBuilder extends ComponentBuilderExtension<EasyImplementation> {
+
+    public EasyComponentBuilder() {
+    }
+
+    protected Class<EasyImplementation> getImplementationType() {
+        return EasyImplementation.class;
+    }
+
+    @SuppressWarnings("unchecked")
+    public Component build(CompositeComponent parent, ComponentDefinition<EasyImplementation> componentDefinition,
+            DeploymentContext deploymentContext) throws BuilderConfigException {
+
+        String name = componentDefinition.getName();
+        EasyImplementation implementation = componentDefinition.getImplementation();
+        EasyComponentType componentType = implementation.getComponentType();
+
+        // get list of services provided by this component
+        Collection<ServiceDefinition> collection = componentType.getServices().values();
+        List<Class<?>> services = new ArrayList<Class<?>>(collection.size());
+        for (ServiceDefinition serviceDefinition : collection) {
+            services.add(serviceDefinition.getServiceContract().getInterfaceClass());
+        }
+
+        // get the properties for the component
+        Map<String, Object> properties = new HashMap<String, Object>();
+        for (PropertyValue propertyValue : componentDefinition.getPropertyValues().values()) {
+            properties.put(propertyValue.getName(), propertyValue.getValueFactory().getInstance());
+        }
+
+        // TODO: have ComponentBuilderExtension pass ScopeContainer in on build method?
+        ScopeContainer scopeContainer;
+        Scope scope = componentType.getLifecycleScope();
+        if (Scope.MODULE == scope) {
+            scopeContainer = deploymentContext.getModuleScope();
+        } else {
+            scopeContainer = scopeRegistry.getScopeContainer(scope);
+        }
+
+        return new EasyComponent(name, implementation.getScriptInstanceFactory(), properties, services, parent, scopeContainer, wireService, workContext, workScheduler);
+    }
+
+}
diff --git a/sandbox/ant/container.easy/src/main/java/org/apache/tuscany/container/easy/EasyComponentType.java b/sandbox/ant/container.easy/src/main/java/org/apache/tuscany/container/easy/EasyComponentType.java
new file mode 100644
index 0000000000..aa3882a0aa
--- /dev/null
+++ b/sandbox/ant/container.easy/src/main/java/org/apache/tuscany/container/easy/EasyComponentType.java
@@ -0,0 +1,62 @@
+/*
+ * 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.easy;
+
+import org.apache.tuscany.spi.model.ComponentType;
+import org.apache.tuscany.spi.model.Property;
+import org.apache.tuscany.spi.model.ReferenceDefinition;
+import org.apache.tuscany.spi.model.Scope;
+import org.apache.tuscany.spi.model.ServiceDefinition;
+
+/**
+ * A componentType for script components
+ * TODO: need lifecycle methods init/destroy 
+ * TODO: really need a generic componentType that supports scope and lifecycle 
+ */
+public class EasyComponentType extends ComponentType<ServiceDefinition, ReferenceDefinition, Property<?>> {
+
+    private Scope lifecycleScope = Scope.MODULE;
+
+    public EasyComponentType() {
+    }
+
+    @SuppressWarnings("unchecked")
+    public EasyComponentType(ComponentType ct) {
+        // TODO: A bit hacky but this is so the generic .componentType XML side file can be used for now
+        setInitLevel(ct.getInitLevel());
+        for (Object property : ct.getProperties().values()) {
+            add((Property) property);
+        }
+        for (Object reference : ct.getReferences().values()) {
+            add((ReferenceDefinition) reference);
+        }
+        for (Object service : ct.getServices().values()) {
+            add((ServiceDefinition) service);
+        }
+    }
+
+    public Scope getLifecycleScope() {
+        return lifecycleScope;
+    }
+
+    public void setLifecycleScope(Scope lifecycleScope) {
+        this.lifecycleScope = lifecycleScope;
+    }
+
+}
diff --git a/sandbox/ant/container.easy/src/main/java/org/apache/tuscany/container/easy/EasyComponentTypeLoader.java b/sandbox/ant/container.easy/src/main/java/org/apache/tuscany/container/easy/EasyComponentTypeLoader.java
new file mode 100644
index 0000000000..ada889e0a1
--- /dev/null
+++ b/sandbox/ant/container.easy/src/main/java/org/apache/tuscany/container/easy/EasyComponentTypeLoader.java
@@ -0,0 +1,71 @@
+/*
+ * 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.easy;
+
+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 script components
+ */
+public class EasyComponentTypeLoader extends ComponentTypeLoaderExtension<EasyImplementation> {
+
+    public EasyComponentTypeLoader() {
+    }
+
+    @Override
+    protected Class<EasyImplementation> getImplementationClass() {
+        return EasyImplementation.class;
+    }
+
+    // TODO: must be possible to move all the following up in to ComponentTypeLoaderExtension
+
+    public void load(CompositeComponent parent, EasyImplementation implementation, DeploymentContext deploymentContext) throws LoaderException {
+        String sideFile = getSideFileName(implementation.getResourceName());
+        URL resource = implementation.getScriptInstanceFactory().getClassLoader().getResource(sideFile);
+        EasyComponentType componentType;
+        if (resource == null) {
+            throw new IllegalArgumentException("missing .componentType side file: " + sideFile);
+            // TODO: or else implement introspection
+        } else {
+            componentType = loadFromSidefile(resource, deploymentContext);
+        }
+        implementation.setComponentType(componentType);
+    }
+
+    protected EasyComponentType loadFromSidefile(URL url, DeploymentContext deploymentContext) throws LoaderException {
+        ComponentType ct = loaderRegistry.load(null, null, url, ComponentType.class, deploymentContext);
+        EasyComponentType scriptComponentType = new EasyComponentType(ct);
+        return scriptComponentType;
+    }
+
+    protected String getSideFileName(String resourceName) {
+        int lastDot = resourceName.lastIndexOf('.');
+        if (lastDot != -1) {
+            resourceName = resourceName.substring(0, lastDot);
+        }
+        return resourceName + ".componentType";
+    }
+
+}
diff --git a/sandbox/ant/container.easy/src/main/java/org/apache/tuscany/container/easy/EasyImplementation.java b/sandbox/ant/container.easy/src/main/java/org/apache/tuscany/container/easy/EasyImplementation.java
new file mode 100644
index 0000000000..891838d1c6
--- /dev/null
+++ b/sandbox/ant/container.easy/src/main/java/org/apache/tuscany/container/easy/EasyImplementation.java
@@ -0,0 +1,47 @@
+/*
+ * 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.easy;
+
+import org.apache.tuscany.spi.model.AtomicImplementation;
+
+/**
+ * Model object for a script implementation.
+ */
+public class EasyImplementation extends AtomicImplementation<EasyComponentType> {
+
+    private String resourceName;
+    
+    private EasyInstanceFactory scriptInstanceFactory;
+
+    public String getResourceName() {
+        return resourceName;
+    }
+    
+    public void setResourceName(String resourceName) {
+        this.resourceName = resourceName;
+    }
+    
+    public EasyInstanceFactory getScriptInstanceFactory() {
+        return scriptInstanceFactory;
+    }
+
+    public void setScriptInstanceFactory(EasyInstanceFactory scriptInstanceFactory) {
+        this.scriptInstanceFactory = scriptInstanceFactory;
+    }
+}
diff --git a/sandbox/ant/container.easy/src/main/java/org/apache/tuscany/container/easy/EasyImplementationLoader.java b/sandbox/ant/container.easy/src/main/java/org/apache/tuscany/container/easy/EasyImplementationLoader.java
new file mode 100644
index 0000000000..79d38f1f35
--- /dev/null
+++ b/sandbox/ant/container.easy/src/main/java/org/apache/tuscany/container/easy/EasyImplementationLoader.java
@@ -0,0 +1,85 @@
+/*
+ * 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.easy;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.Reader;
+import java.net.URL;
+
+import javax.xml.namespace.QName;
+
+import org.apache.tuscany.spi.annotation.Autowire;
+import org.apache.tuscany.spi.extension.LoaderExtension;
+import org.apache.tuscany.spi.loader.LoaderException;
+import org.apache.tuscany.spi.loader.LoaderRegistry;
+import org.apache.tuscany.spi.loader.MissingResourceException;
+import org.osoa.sca.annotations.Constructor;
+
+/**
+ * Loader for handling implementation.script elements.
+ * 
+ * <implementation.script script="path/foo.py" class="myclass">
+ * 
+ */
+public abstract class EasyImplementationLoader extends LoaderExtension<EasyImplementation> {
+
+    @Constructor( { "registry" })
+    public EasyImplementationLoader(@Autowire LoaderRegistry registry) {
+        super(registry);
+    }
+
+    public abstract QName getXMLType();
+
+    protected String loadSource(ClassLoader cl, String resource) throws LoaderException {
+        URL url = cl.getResource(resource);
+        if (url == null) {
+            throw new MissingResourceException(resource);
+        }
+        InputStream is;
+        try {
+            is = url.openStream();
+        } catch (IOException e) {
+            MissingResourceException mre = new MissingResourceException(resource, e);
+            mre.setIdentifier(resource);
+            throw mre;
+        }
+        try {
+            Reader reader = new InputStreamReader(is, "UTF-8");
+            char[] buffer = new char[1024];
+            StringBuilder source = new StringBuilder();
+            int count;
+            while ((count = reader.read(buffer)) > 0) {
+                source.append(buffer, 0, count);
+            }
+            return source.toString();
+        } catch (IOException e) {
+            LoaderException le = new LoaderException(e);
+            le.setIdentifier(resource);
+            throw le;
+        } finally {
+            try {
+                is.close();
+            } catch (IOException e) {
+                // ignore
+            }
+        }
+    }
+}
diff --git a/sandbox/ant/container.easy/src/main/java/org/apache/tuscany/container/easy/EasyInstance.java b/sandbox/ant/container.easy/src/main/java/org/apache/tuscany/container/easy/EasyInstance.java
new file mode 100644
index 0000000000..8e80103f04
--- /dev/null
+++ b/sandbox/ant/container.easy/src/main/java/org/apache/tuscany/container/easy/EasyInstance.java
@@ -0,0 +1,31 @@
+/*
+ * 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.easy;
+
+import java.lang.reflect.InvocationTargetException;
+
+/**
+ * An invokable instance of a script
+ * 
+ * Basically just a wrapper around a BSF engine with an optional script class object.
+ */
+public interface EasyInstance {
+
+    public Object invokeTarget(String operationName, Object[] args) throws InvocationTargetException;
+}
diff --git a/sandbox/ant/container.easy/src/main/java/org/apache/tuscany/container/easy/EasyInstanceFactory.java b/sandbox/ant/container.easy/src/main/java/org/apache/tuscany/container/easy/EasyInstanceFactory.java
new file mode 100644
index 0000000000..403eeb6daf
--- /dev/null
+++ b/sandbox/ant/container.easy/src/main/java/org/apache/tuscany/container/easy/EasyInstanceFactory.java
@@ -0,0 +1,71 @@
+/*
+ * 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.easy;
+
+import java.lang.reflect.Method;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * ScriptInstanceFactory creates ScriptInstances for a script
+ */
+public abstract class EasyInstanceFactory<T extends EasyInstance> {
+
+    protected String resourceName;
+
+    protected ClassLoader classLoader;
+
+    public EasyInstanceFactory(String resourceName, ClassLoader classLoader) {
+        this.resourceName = resourceName;
+        this.classLoader = classLoader;
+    }
+
+    /**
+     * Create a new invokeable instance of the script
+     * @param services 
+     * 
+     * @param context
+     *            objects to add to scope of the script instance
+     * @return a RhinoScriptInstance
+     * TODO: services should be on the constructor not on this method
+     */
+    public abstract T createInstance(List<Class> services, Map<String, Object> context);
+
+    public String getResourceName() {
+        return resourceName;
+    }
+
+    public ClassLoader getClassLoader() {
+        return classLoader;
+    }
+
+    protected Map<String, Class> getResponseClasses(List<Class> services) {
+        Map<String, Class> responseClasses = new HashMap<String, Class>();
+        if (services != null) {
+            for (Class s : services) {
+                for (Method m : s.getMethods()) {
+                    responseClasses.put(m.getName(), m.getReturnType());
+                }
+            }
+        }
+        return responseClasses;
+    }
+
+}
diff --git a/sandbox/ant/container.easy/src/main/java/org/apache/tuscany/container/easy/EasyInvoker.java b/sandbox/ant/container.easy/src/main/java/org/apache/tuscany/container/easy/EasyInvoker.java
new file mode 100644
index 0000000000..37ba4c5c2d
--- /dev/null
+++ b/sandbox/ant/container.easy/src/main/java/org/apache/tuscany/container/easy/EasyInvoker.java
@@ -0,0 +1,53 @@
+/*
+ * 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.easy;
+
+import java.lang.reflect.InvocationTargetException;
+
+import org.apache.tuscany.spi.extension.TargetInvokerExtension;
+
+/**
+ * TargetInvoker that calls a function on a ScriptInstance
+ */
+public class EasyInvoker extends TargetInvokerExtension {
+
+    protected EasyComponent component;
+
+    protected String functionName;
+
+    public EasyInvoker(String functionName, EasyComponent component) {
+        this.functionName = functionName;
+        this.component = component;
+    }
+
+    /**
+     * Invoke the function
+     */
+    public Object invokeTarget(final Object payload) throws InvocationTargetException {
+        EasyInstance target = (EasyInstance) component.getTargetInstance();
+        try {
+
+            return target.invokeTarget(functionName, (Object[]) payload);
+
+        } catch (Exception e) {
+            throw new InvocationTargetException(e);
+        }
+    }
+
+}