diff options
Diffstat (limited to 'sca-java-2.x/tags/2.0.1-RC1/modules/implementation-script-runtime/src/main/java/org/apache/tuscany/sca/implementation')
4 files changed, 538 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/implementation-script-runtime/src/main/java/org/apache/tuscany/sca/implementation/script/provider/ScriptImplementationProvider.java b/sca-java-2.x/tags/2.0.1-RC1/modules/implementation-script-runtime/src/main/java/org/apache/tuscany/sca/implementation/script/provider/ScriptImplementationProvider.java new file mode 100644 index 0000000000..0938462c49 --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/implementation-script-runtime/src/main/java/org/apache/tuscany/sca/implementation/script/provider/ScriptImplementationProvider.java @@ -0,0 +1,174 @@ +/* + * 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.sca.implementation.script.provider; + +import java.io.IOException; +import java.io.InputStreamReader; +import java.net.URL; +import java.security.AccessController; +import java.security.PrivilegedAction; + +import javax.script.Invocable; +import javax.script.ScriptEngine; +import javax.script.ScriptEngineManager; +import javax.script.ScriptException; + +import org.apache.axiom.om.OMElement; +import org.apache.bsf.xml.XMLHelper; +import org.apache.tuscany.sca.assembly.ComponentReference; +import org.apache.tuscany.sca.assembly.Property; +import org.apache.tuscany.sca.assembly.Reference; +import org.apache.tuscany.sca.assembly.Service; +import org.apache.tuscany.sca.core.factory.ObjectCreationException; +import org.apache.tuscany.sca.core.factory.ObjectFactory; +import org.apache.tuscany.sca.implementation.script.ScriptImplementation; +import org.apache.tuscany.sca.interfacedef.InterfaceContract; +import org.apache.tuscany.sca.interfacedef.Operation; +import org.apache.tuscany.sca.interfacedef.java.JavaInterface; +import org.apache.tuscany.sca.interfacedef.wsdl.WSDLInterfaceContract; +import org.apache.tuscany.sca.invocation.Invoker; +import org.apache.tuscany.sca.provider.ImplementationProvider; +import org.apache.tuscany.sca.runtime.RuntimeComponent; +import org.apache.tuscany.sca.runtime.RuntimeComponentService; + +/** + * An ImplementationProvider for Script implementations. + * + * @version $Rev$ $Date$ + */ +public class ScriptImplementationProvider implements ImplementationProvider { + + private RuntimeComponent component; + private ScriptImplementation implementation; + private ScriptPropertyFactory propertyFactory; + private ScriptEngine scriptEngine; + private XMLHelper xmlHelper; + + public ScriptImplementationProvider(RuntimeComponent component, ScriptImplementation implementation, ScriptPropertyFactory propertyFactory) { + this.component = component; + this.implementation = implementation; + this.propertyFactory = propertyFactory; + + // Set the databinding and XMLHelper for WSDL interfaces + for (Service service : component.getServices()) { + InterfaceContract ic = service.getInterfaceContract(); + if (ic instanceof WSDLInterfaceContract) { + ic.getInterface().resetDataBinding(OMElement.class.getName()); + xmlHelper = XMLHelper.getArgHelper(scriptEngine); + } + } + } + + public void start() { + try { + String language = implementation.getLanguage(); + if (language == null) { + language = implementation.getScript(); + language = language.substring(language.lastIndexOf('.') +1); + } + scriptEngine = scriptEngine(language); + if (scriptEngine == null) { + throw new ObjectCreationException("no script engine found for language: " + implementation.getLanguage()); + } + if (!(scriptEngine instanceof Invocable)) { + throw new ObjectCreationException("script engine does not support Invocable: " + scriptEngine); + } + + for (Reference reference : implementation.getReferences()) { + scriptEngine.put(reference.getName(), getProxy(reference.getName())); + } + + for (Property property : implementation.getProperties()) { + ObjectFactory<?> valueFactory = propertyFactory.createValueFactory(property); + if (valueFactory != null) { + scriptEngine.put(property.getName(), valueFactory.getInstance()); + } + } + + URL url = new URL(implementation.getLocation()); + InputStreamReader reader = new InputStreamReader(url.openStream()); + scriptEngine.eval(reader); + reader.close(); + + } catch (IOException e) { + throw new IllegalArgumentException(e); + } catch (ScriptException e) { + throw new IllegalArgumentException(e); + } + } + + public void stop() { + } + + public boolean supportsOneWayInvocation() { + return false; + } + + public Invoker createInvoker(RuntimeComponentService service, Operation operation) { + return new ScriptInvoker(scriptEngine, xmlHelper, operation); + } + + private Object getProxy(String name) { + for (ComponentReference reference : component.getReferences()) { + if (reference.getName().equals(name)) { + Class<?> iface = ((JavaInterface)reference.getInterfaceContract().getInterface()).getJavaClass(); + return component.getComponentContext().getService(iface, name); + } + } + throw new IllegalArgumentException("reference " + name + " not found on component: " + component); + } + + /** + * Returns the script engine for the given language. + * + * @param language + * @return + */ + private ScriptEngine scriptEngine(String language) { + if ("rb".equals(language)) { + + // Hack for now to work around a problem with the JRuby script engine + // return new TuscanyJRubyScriptEngine(); + } else { + if ("py".equals(language)) { + pythonCachedir(); + } + } + // Allow privileged access to run access classes. Requires RuntimePermission + // for accessClassInPackage.sun.misc. + ScriptEngineManager scriptEngineManager = + AccessController.doPrivileged(new PrivilegedAction<ScriptEngineManager>() { + public ScriptEngineManager run() { + return new ScriptEngineManager(); + } + }); + return scriptEngineManager.getEngineByExtension(language); + } + + /** + * If the Python home isn't set then let Tuscany suppress messages other than errors + * See TUSCANY-1950 + */ + private static void pythonCachedir() { + if (System.getProperty("python.home") == null) { + System.setProperty("python.verbose", "error"); + } + } +} diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/implementation-script-runtime/src/main/java/org/apache/tuscany/sca/implementation/script/provider/ScriptImplementationProviderFactory.java b/sca-java-2.x/tags/2.0.1-RC1/modules/implementation-script-runtime/src/main/java/org/apache/tuscany/sca/implementation/script/provider/ScriptImplementationProviderFactory.java new file mode 100644 index 0000000000..67d4a5493c --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/implementation-script-runtime/src/main/java/org/apache/tuscany/sca/implementation/script/provider/ScriptImplementationProviderFactory.java @@ -0,0 +1,55 @@ +/* + * 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.sca.implementation.script.provider; + +import org.apache.tuscany.sca.core.ExtensionPointRegistry; +import org.apache.tuscany.sca.core.UtilityExtensionPoint; +import org.apache.tuscany.sca.databinding.Mediator; +import org.apache.tuscany.sca.databinding.SimpleTypeMapper; +import org.apache.tuscany.sca.implementation.script.ScriptImplementation; +import org.apache.tuscany.sca.provider.ImplementationProvider; +import org.apache.tuscany.sca.provider.ImplementationProviderFactory; +import org.apache.tuscany.sca.runtime.RuntimeComponent; + +/** + * An ImplementationProviderFactory for Script implementations. + * + * @version $Rev$ $Date$ + */ +public class ScriptImplementationProviderFactory implements ImplementationProviderFactory<ScriptImplementation> { + + private ScriptPropertyFactory propertyFactory; + + public ScriptImplementationProviderFactory(ExtensionPointRegistry extensionPoints) { + UtilityExtensionPoint utilities = extensionPoints.getExtensionPoint(UtilityExtensionPoint.class); + Mediator mediator = utilities.getUtility(Mediator.class); + SimpleTypeMapper simpleTypeMapper = utilities.getUtility(SimpleTypeMapper.class); + propertyFactory = new ScriptPropertyFactory(mediator, simpleTypeMapper); + } + + public ImplementationProvider createImplementationProvider(RuntimeComponent component, ScriptImplementation Implementation) { + return new ScriptImplementationProvider(component, Implementation, propertyFactory); + } + + public Class<ScriptImplementation> getModelType() { + return ScriptImplementation.class; + } + +} diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/implementation-script-runtime/src/main/java/org/apache/tuscany/sca/implementation/script/provider/ScriptInvoker.java b/sca-java-2.x/tags/2.0.1-RC1/modules/implementation-script-runtime/src/main/java/org/apache/tuscany/sca/implementation/script/provider/ScriptInvoker.java new file mode 100644 index 0000000000..976eb2c0dd --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/implementation-script-runtime/src/main/java/org/apache/tuscany/sca/implementation/script/provider/ScriptInvoker.java @@ -0,0 +1,84 @@ +/* + * 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.sca.implementation.script.provider; + +import javax.script.Invocable; +import javax.script.ScriptEngine; +import javax.script.ScriptException; + +import org.apache.axiom.om.OMElement; +import org.apache.bsf.xml.XMLHelper; +import org.apache.tuscany.sca.interfacedef.Operation; +import org.apache.tuscany.sca.invocation.Invoker; +import org.apache.tuscany.sca.invocation.Message; + +/** + * Perform the actual script invocation + * + * @version $Rev$ $Date$ + */ +public class ScriptInvoker implements Invoker { + + private ScriptEngine scriptEngine; + private XMLHelper xmlHelper; + private Operation operation; + + public ScriptInvoker(ScriptEngine scriptEngine, XMLHelper xmlHelper, Operation operation) { + this.scriptEngine = scriptEngine; + this.xmlHelper = xmlHelper; + this.operation = operation; + } + + private Object doInvoke(Object[] objects, Operation op) throws ScriptException { + if (xmlHelper != null) { + objects[0] = xmlHelper.toScriptXML((OMElement)objects[0]); + } + + Operation oper = operation; // static setting + if (oper.getName() == null) { // if no static setting + oper = op; // use dynamic setting + } + Object response; + try { + response = ((Invocable)scriptEngine).invokeFunction(oper.getName(), objects); + } catch (ScriptException e) { + throw e; + } catch (Exception e) { + throw new ScriptException(e); + } + + if (xmlHelper != null) { + response = xmlHelper.toOMElement(response); + } + + return response; + } + + public Message invoke(Message msg) { + try { + Object resp = doInvoke((Object[])msg.getBody(), msg.getOperation()); + msg.setBody(resp); + } catch (ScriptException e) { + msg.setFaultBody(e.getCause()); + } + return msg; + } + +} diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/implementation-script-runtime/src/main/java/org/apache/tuscany/sca/implementation/script/provider/ScriptPropertyFactory.java b/sca-java-2.x/tags/2.0.1-RC1/modules/implementation-script-runtime/src/main/java/org/apache/tuscany/sca/implementation/script/provider/ScriptPropertyFactory.java new file mode 100644 index 0000000000..b56af79b0b --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/implementation-script-runtime/src/main/java/org/apache/tuscany/sca/implementation/script/provider/ScriptPropertyFactory.java @@ -0,0 +1,225 @@ +/* + * 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.sca.implementation.script.provider; + +import java.util.ArrayList; +import java.util.List; +import java.util.StringTokenizer; + +import org.apache.tuscany.sca.assembly.Property; +import org.apache.tuscany.sca.core.factory.ObjectCreationException; +import org.apache.tuscany.sca.core.factory.ObjectFactory; +import org.apache.tuscany.sca.databinding.Mediator; +import org.apache.tuscany.sca.databinding.SimpleTypeMapper; +import org.apache.tuscany.sca.interfacedef.DataType; +import org.apache.tuscany.sca.interfacedef.util.XMLType; +import org.w3c.dom.Document; +import org.w3c.dom.Element; +import org.w3c.dom.Node; + +/** + * A property factory for script properties. + * + * @version $Rev$ $Date$ + */ +public class ScriptPropertyFactory { + private Mediator mediator = null; + private SimpleTypeMapper simpleTypeMapper; + boolean isSimpleType; + + public ScriptPropertyFactory(Mediator mediator, SimpleTypeMapper simpleTypeMapper) { + this.mediator = mediator; + this.simpleTypeMapper = simpleTypeMapper; + } + + public ObjectFactory createValueFactory(Property property) { + isSimpleType = isSimpleType(property); + Document doc = (Document)property.getValue(); + Element rootElement = doc.getDocumentElement(); + + //FIXME : since scripts use dynamic types we need to generate a dynamic java type using the + //XML structure of the property value. Should this be done in the JavaBeansDataBinding... + Class javaType = null; + + if (property.isMany()) { + if (isSimpleType) { + String value = ""; + if (rootElement.getChildNodes().getLength() > 0) { + value = rootElement.getChildNodes().item(0).getTextContent(); + } + List<String> values = + getSimplePropertyValues(value, javaType); + return new ListObjectFactoryImpl(property, + values, + isSimpleType, + javaType); + } else { + return new ListObjectFactoryImpl(property, + getComplexPropertyValues(doc), + isSimpleType, + javaType); + } + } else { + if (isSimpleType) { + String value = ""; + if (rootElement.getChildNodes().getLength() > 0) { + value = rootElement.getChildNodes().item(0).getTextContent(); + } + return new ObjectFactoryImpl(property, + value, + isSimpleType, + javaType); + } else { + Object value = getComplexPropertyValues(doc).get(0); + return new ObjectFactoryImpl(property, + value, + isSimpleType, + javaType); + } + + } + } + + private boolean isSimpleType(Property property) { + if (property.getXSDType() != null) { + return simpleTypeMapper.isSimpleXSDType(property.getXSDType()); + } else { + if (property instanceof Document) { + Document doc = (Document)property; + Element element = doc.getDocumentElement(); + if (element.getChildNodes().getLength() == 1 && + element.getChildNodes().item(0).getNodeType() == Node.TEXT_NODE) { + return true; + } + } + } + return false; + } + + private List<String> getSimplePropertyValues(String concatenatedValue, Class<?> javaType) { + List<String> propValues = new ArrayList<String>(); + StringTokenizer st = null; + if ( javaType.getName().equals("java.lang.String")) { + st = new StringTokenizer(concatenatedValue, "\""); + } else { + st = new StringTokenizer(concatenatedValue); + } + String aToken = null; + while (st.hasMoreTokens()) { + aToken = st.nextToken(); + if (aToken.trim().length() > 0) { + propValues.add(aToken); + } + } + return propValues; + } + + private List<Node> getComplexPropertyValues(Document document) { + Element rootElement = document.getDocumentElement(); + List<Node> propValues = new ArrayList<Node>(); + for (int count = 0 ; count < rootElement.getChildNodes().getLength() ; ++count) { + if (rootElement.getChildNodes().item(count).getNodeType() == Node.ELEMENT_NODE) { + propValues.add(rootElement.getChildNodes().item(count)); + } + } + return propValues; + } + + public abstract class ObjectFactoryImplBase implements ObjectFactory { + protected Property property; + protected Object propertyValue; + protected Class<?> javaType; + protected DataType<XMLType> sourceDataType; + protected DataType<?> targetDataType; + boolean isSimpleType; + + public ObjectFactoryImplBase(Property property, Object propertyValue, boolean isSimpleType, Class<?> javaType) { + + this.isSimpleType = isSimpleType; + this.property = property; + this.propertyValue = propertyValue; + this.javaType = javaType; + + //FIXME : fix this when we have managed to generate dynamic java types + + /*sourceDataType = + new DataTypeImpl<XMLType>(DOMDataBinding.NAME, Node.class, + new XMLType(null, this.property.getXSDType())); + TypeInfo typeInfo = null; + if (this.property.getXSDType() != null) { + if (SimpleTypeMapperExtension.isSimpleXSDType(this.property.getXSDType())) { + typeInfo = new TypeInfo(property.getXSDType(), true, null); + } else { + typeInfo = new TypeInfo(property.getXSDType(), false, null); + } + } else { + typeInfo = new TypeInfo(property.getXSDType(), false, null); + } + + XMLType xmlType = new XMLType(typeInfo); + String dataBinding = null; //(String)property.getExtensions().get(DataBinding.class.getName()); + if (dataBinding != null) { + targetDataType = new DataTypeImpl<XMLType>(dataBinding, javaType, xmlType); + } else { + targetDataType = new DataTypeImpl<XMLType>(dataBinding, javaType, xmlType); + mediator.getDataBindingRegistry().introspectType(targetDataType, null); + }*/ + } + } + + public class ObjectFactoryImpl extends ObjectFactoryImplBase { + public ObjectFactoryImpl(Property property, Object propertyValue, boolean isSimpleType, Class<?> javaType) { + super(property, propertyValue, isSimpleType, javaType); + } + + public Object getInstance() throws ObjectCreationException { + if (isSimpleType) { + return simpleTypeMapper.toJavaObject(property.getXSDType(), (String)propertyValue, null); + } else { + return mediator.mediate(propertyValue, sourceDataType, targetDataType, null); + } + } + } + + public class ListObjectFactoryImpl extends ObjectFactoryImplBase { + public ListObjectFactoryImpl(Property property, List<?>propertyValues, boolean isSimpleType, Class<?> javaType) { + super(property, propertyValues, isSimpleType, javaType); + } + + public List<?> getInstance() throws ObjectCreationException { + if (isSimpleType) { + List<Object> values = new ArrayList<Object>(); + for (String aValue : (List<String>)propertyValue) { + values.add(simpleTypeMapper.toJavaObject(property.getXSDType(), aValue, null)); + } + return values; + } else { + List<Object> instances = new ArrayList<Object>(); + for (Node aValue : (List<Node>)propertyValue) { + instances.add(mediator.mediate(aValue, + sourceDataType, + targetDataType, + null)); + } + return instances; + } + } + } +} |