From bdd0a41aed7edf21ec2a65cfa17a86af2ef8c48a Mon Sep 17 00:00:00 2001 From: dims Date: Tue, 17 Jun 2008 00:23:01 +0000 Subject: Move Tuscany from Incubator to top level. git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@668359 13f79535-47bb-0310-9956-ffa450edef68 --- .../container/javascript/JavaScriptComponent.java | 120 +++++++++++++++++++++ 1 file changed, 120 insertions(+) create mode 100644 branches/sca-java-M2/sca/services/containers/container.javascript/src/main/java/org/apache/tuscany/container/javascript/JavaScriptComponent.java (limited to 'branches/sca-java-M2/sca/services/containers/container.javascript/src/main/java/org/apache/tuscany/container/javascript/JavaScriptComponent.java') diff --git a/branches/sca-java-M2/sca/services/containers/container.javascript/src/main/java/org/apache/tuscany/container/javascript/JavaScriptComponent.java b/branches/sca-java-M2/sca/services/containers/container.javascript/src/main/java/org/apache/tuscany/container/javascript/JavaScriptComponent.java new file mode 100644 index 0000000000..9872788a05 --- /dev/null +++ b/branches/sca-java-M2/sca/services/containers/container.javascript/src/main/java/org/apache/tuscany/container/javascript/JavaScriptComponent.java @@ -0,0 +1,120 @@ +/* + * 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.javascript; + +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.wire.InboundWire; +import org.apache.tuscany.spi.wire.OutboundWire; +import org.apache.tuscany.spi.wire.TargetInvoker; +import org.apache.tuscany.spi.wire.WireService; + +import org.apache.tuscany.container.javascript.rhino.RhinoScript; +import org.apache.tuscany.container.javascript.rhino.RhinoScriptInstance; + +/** + * The JavaScript component implementation. + */ +public class JavaScriptComponent extends AtomicComponentExtension { + + private final List> services; + + private final Map properties; + + private RhinoScript rhinoScript; + + public JavaScriptComponent(String name, RhinoScript rhinoScript, Map properties, List> services, + CompositeComponent parent, ScopeContainer scopeContainer, WireService wireService, + WorkContext workContext) { + super(name, parent, scopeContainer, wireService, workContext, null, 0); + + this.rhinoScript = rhinoScript; + this.services = services; + this.scope = scopeContainer.getScope(); + this.properties = properties; + } + + public Object createInstance() throws ObjectCreationException { + + Map context = new HashMap(getProperties()); + + for (List referenceWires : getOutboundWires().values()) { + for (OutboundWire wire : referenceWires) { + Object wireProxy = wireService.createProxy(wire); + //since all types that may be used in the reference interface may not be known to Rhino + //using the wireProxy as is will fail result in type conversion exceptions in cases where + //Rhino does not know enough of the tpypes used. Hence introduce a interceptor proxy, + //with weak typing (java.lang.Object) so that Rhino's call to the proxy succeeds. Then + //within this interceptor proxy perform data mediations required to correctly call the + //referenced service. + Class businessInterface = wire.getServiceContract().getInterfaceClass(); + JavaScriptReferenceProxy interceptingProxy = + new JavaScriptReferenceProxy(businessInterface, + wireProxy, + rhinoScript.createInstanceScope(context)); + context.put(wire.getReferenceName(), interceptingProxy.createProxy()); + + } + } + + return rhinoScript.createRhinoScriptInstance(context); + } + + public TargetInvoker createTargetInvoker(String targetName, Operation operation) { + return new JavaScriptInvoker(operation.getName(), (Class)operation.getOutputType().getLogical(), this); + } + + // TODO: move all the following up to AtomicComponentExtension? + + public List> getServiceInterfaces() { + return services; + } + + public Map getProperties() { + return properties; + } + + public RhinoScriptInstance getTargetInstance() throws TargetException { + return (RhinoScriptInstance) scopeContainer.getInstance(this); + } + + public Object getServiceInstance() throws TargetException { + return getServiceInstance(null); + } + + 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); + } + +} -- cgit v1.2.3