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Diffstat (limited to 'sandbox/event/modules/implementation-xquery/src/main/java/org/apache/tuscany/sca/implementation/xquery/xml/XQueryIntrospector.java')
-rw-r--r--sandbox/event/modules/implementation-xquery/src/main/java/org/apache/tuscany/sca/implementation/xquery/xml/XQueryIntrospector.java328
1 files changed, 0 insertions, 328 deletions
diff --git a/sandbox/event/modules/implementation-xquery/src/main/java/org/apache/tuscany/sca/implementation/xquery/xml/XQueryIntrospector.java b/sandbox/event/modules/implementation-xquery/src/main/java/org/apache/tuscany/sca/implementation/xquery/xml/XQueryIntrospector.java
deleted file mode 100644
index d1e74dd40d..0000000000
--- a/sandbox/event/modules/implementation-xquery/src/main/java/org/apache/tuscany/sca/implementation/xquery/xml/XQueryIntrospector.java
+++ /dev/null
@@ -1,328 +0,0 @@
-/*
- * 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.xquery.xml;
-
-import java.io.ByteArrayOutputStream;
-import java.io.FileNotFoundException;
-import java.io.IOException;
-import java.io.InputStream;
-import java.lang.reflect.Method;
-import java.net.URL;
-import java.util.Iterator;
-
-import javax.xml.namespace.QName;
-
-import net.sf.saxon.Configuration;
-import net.sf.saxon.om.NamespaceResolver;
-import net.sf.saxon.query.StaticQueryContext;
-import net.sf.saxon.query.XQueryExpression;
-import net.sf.saxon.trans.XPathException;
-
-import org.apache.tuscany.sca.assembly.AssemblyFactory;
-import org.apache.tuscany.sca.assembly.Multiplicity;
-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.contribution.resolver.ClassReference;
-import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
-import org.apache.tuscany.sca.contribution.service.ContributionResolveException;
-import org.apache.tuscany.sca.implementation.xquery.XQueryImplementation;
-import org.apache.tuscany.sca.interfacedef.InvalidInterfaceException;
-import org.apache.tuscany.sca.interfacedef.java.JavaInterface;
-import org.apache.tuscany.sca.interfacedef.java.JavaInterfaceContract;
-import org.apache.tuscany.sca.interfacedef.java.JavaInterfaceFactory;
-import org.apache.tuscany.sca.interfacedef.util.JavaXMLMapper;
-
-/**
- * This class introspects an XQuery file and extracts out of it
- * all implemented service, references and properties
- * It also creates expression extensions for each operation
- * in the implemented services
- * @version $Rev$ $Date$
- */
-public class XQueryIntrospector {
-
- private static final String SCA_SERVICE_PREFIX = "scaservice:java/";
- private static final String SCA_REFERENCE_PREFIX = "scareference:java/";
- private static final String SCA_PROPERTY_JAVA_PREFIX = "scaproperty:java/";
- private static final String SCA_PROPERTY_XML_PREFIX = "scaproperty:xml/";
-
- private AssemblyFactory assemblyFactory;
- private JavaInterfaceFactory javaFactory;
-
- public XQueryIntrospector(AssemblyFactory assemblyFactory, JavaInterfaceFactory javaFactory) {
- super();
- this.assemblyFactory = assemblyFactory;
- this.javaFactory = javaFactory;
- }
-
- public boolean introspect(XQueryImplementation xqueryImplementation, ModelResolver resolver) throws ContributionResolveException {
-
- String xqExpression = null;
- try {
- URL url = new URL(xqueryImplementation.getLocationURL());
- xqExpression = loadXQExpression(url);
- } catch (FileNotFoundException e) {
- throw new ContributionResolveException(e);
- } catch (IOException e) {
- throw new ContributionResolveException(e);
- }
-
- if (xqExpression == null) {
- return false;
- }
-
- xqueryImplementation.setXqExpression(xqExpression);
-
- xqExpression += "\r\n<dummy></dummy>";
-
- Configuration config = new Configuration();
- StaticQueryContext sqc = new StaticQueryContext(config);
- XQueryExpression exp = null;
- try {
- exp = sqc.compileQuery(xqExpression);
- } catch (XPathException e) {
- throw new ContributionResolveException(e);
- }
-
- if (exp == null) {
- return false;
- }
- xqueryImplementation.getCompiledExpressionsCache().put(xqExpression, exp);
-
- try {
- introspectServicesAndReferences(xqueryImplementation, exp, resolver);
- } catch (ClassNotFoundException e) {
- throw new ContributionResolveException(e);
- } catch (InvalidInterfaceException e) {
- throw new ContributionResolveException(e);
- }
-
- fillExpressionExtensions(xqueryImplementation);
-
- return true;
- }
-
- /**
- * Loads the XQuery expression from the location that is provided with the implementation
- */
- private String loadXQExpression(URL locationURL) throws FileNotFoundException, IOException {
-
- InputStream xqResourceStream = locationURL.openStream();
-
- if (xqResourceStream == null) {
- return null;
- }
-
- ByteArrayOutputStream baos = new ByteArrayOutputStream();
- int i = 0;
- while ((i = xqResourceStream.read()) >= 0) {
- baos.write(i);
- }
- xqResourceStream.close();
- baos.flush();
- baos.close();
-
- String xqExpression = baos.toString();
-
- return xqExpression;
- }
-
- private Class<?> resolveClass(ModelResolver resolver, String className) throws ClassNotFoundException {
- ClassReference classReference = new ClassReference(className);
- classReference = resolver.resolveModel(ClassReference.class, classReference);
- Class<?> javaClass = classReference.getJavaClass();
- if (javaClass == null) {
- throw new ClassNotFoundException(className);
- } else {
- return javaClass;
- }
- }
-
- /**
- * From the compiled XQuery expression get all namespaces and see if they
- * are services, references or properties declarations
- */
- private void introspectServicesAndReferences(XQueryImplementation xqueryImplementation, XQueryExpression exp, ModelResolver resolver)
- throws ClassNotFoundException, InvalidInterfaceException {
- NamespaceResolver namespaceResolver = exp.getStaticContext().getNamespaceResolver();
- Iterator declaredPrefixesIterator = namespaceResolver.iteratePrefixes();
- while (declaredPrefixesIterator.hasNext()) {
- String prefix = (String)declaredPrefixesIterator.next();
- String uri = namespaceResolver.getURIForPrefix(prefix, false);
- if (uri.startsWith(SCA_SERVICE_PREFIX)) {
- String serviceName = prefix;
- String className = uri.substring(SCA_SERVICE_PREFIX.length());
- Class<?> interfaze = resolveClass(resolver, className);
- Service theService = createService(interfaze, serviceName);
- xqueryImplementation.getServices().add(theService);
- } else if (uri.startsWith(SCA_REFERENCE_PREFIX)) {
- String referenceName = prefix;
- String className = uri.substring(SCA_REFERENCE_PREFIX.length());
- Class<?> interfaze = resolveClass(resolver, className);
- Reference theReference = createReference(interfaze, referenceName);
- xqueryImplementation.getReferences().add(theReference);
- } else if (uri.startsWith(SCA_PROPERTY_JAVA_PREFIX)) {
- String propertyName = prefix;
- String className = uri.substring(SCA_PROPERTY_JAVA_PREFIX.length());
- Class<?> clazz = resolveClass(resolver, className);
- QName xmlType = JavaXMLMapper.getXMLType(clazz);
- Property theProperty = createProperty(xmlType, propertyName);
- xqueryImplementation.getProperties().add(theProperty);
- } else if (uri.startsWith(SCA_PROPERTY_XML_PREFIX)) {
- String propertyName = prefix;
- String namespaceAndLocalname = uri.substring(SCA_PROPERTY_XML_PREFIX.length());
- int localNameDelimiterPostition = namespaceAndLocalname.lastIndexOf(':');
- String localName = null;
- String namespace = null;
- if (localNameDelimiterPostition < 0) {
- localName = namespaceAndLocalname;
- namespace = "";
- } else {
- namespace = namespaceAndLocalname.substring(0, localNameDelimiterPostition);
- localName = namespaceAndLocalname.substring(localNameDelimiterPostition + 1);
- }
- QName xmlType = new QName(namespace, localName);
- Property theProperty = createProperty(xmlType, propertyName);
- xqueryImplementation.getProperties().add(theProperty);
- }
- }
- }
-
- /**
- * Creates a Service for the component type based on its name and Java interface
- */
- private Service createService(Class<?> interfaze, String name) throws InvalidInterfaceException {
- Service service = assemblyFactory.createService();
- JavaInterfaceContract interfaceContract = javaFactory.createJavaInterfaceContract();
- service.setInterfaceContract(interfaceContract);
-
- // Set the name for the service
- service.setName(name);
-
- // Set the call interface and, if present, the callback interface
- JavaInterface callInterface = null;
- try {
- callInterface = (JavaInterface) javaFactory.createJavaInterface(interfaze).clone();
- } catch (CloneNotSupportedException e) {
- // Ignore
- }
- //setDataBindingForInterface(callInterface, DataObject.class.getName());
- service.getInterfaceContract().setInterface(callInterface);
- if (callInterface.getCallbackClass() != null) {
- JavaInterface callbackInterface = null;
- try {
- callbackInterface = (JavaInterface) javaFactory.createJavaInterface(callInterface.getCallbackClass()).clone();
- } catch (CloneNotSupportedException e) {
- //Ignore
- }
- //setDataBindingForInterface(callbackInterface, DataObject.class.getName());
- service.getInterfaceContract().setCallbackInterface(callbackInterface);
- }
- return service;
- } // end method createService
-
- protected Property createProperty(QName type, String name) {
-
- Property property = assemblyFactory.createProperty();
- property.setName(name);
- property.setXSDType(type);
-
- property.setMany(false);
- return property;
-
- }
-
- /**
- * Creates a Reference for the component type based on its name and Java interface
- */
- private Reference createReference(Class<?> interfaze, String name) throws InvalidInterfaceException {
- Reference reference = assemblyFactory.createReference();
- JavaInterfaceContract interfaceContract = javaFactory.createJavaInterfaceContract();
- reference.setInterfaceContract(interfaceContract);
-
- // Set the name of the reference to the supplied name and the multiplicity of the reference
- // to 1..1 - for XQuery implementations, this is the only multiplicity supported
- reference.setName(name);
- reference.setMultiplicity(Multiplicity.ONE_ONE);
-
- // Set the call interface and, if present, the callback interface
- // Set the call interface and, if present, the callback interface
- JavaInterface callInterface = null;
- try {
- callInterface = (JavaInterface) javaFactory.createJavaInterface(interfaze).clone();
- } catch (CloneNotSupportedException e) {
- // Ignore
- }
- reference.getInterfaceContract().setInterface(callInterface);
- if (callInterface.getCallbackClass() != null) {
- JavaInterface callbackInterface = null;
- try {
- callbackInterface = (JavaInterface) javaFactory.createJavaInterface(callInterface.getCallbackClass()).clone();
- } catch (CloneNotSupportedException e) {
- //Ignore
- }
- reference.getInterfaceContract().setCallbackInterface(callbackInterface);
- }
-
- return reference;
- }
-
- /**
- * For the methods of each implemented service corresponding expression extension
- * is generated
- * @param xqueryImplementation
- */
- private void fillExpressionExtensions(XQueryImplementation xqueryImplementation) {
- for (Service service : xqueryImplementation.getServices()) {
- Class<?> interfaze = ((JavaInterface)service.getInterfaceContract().getInterface()).getJavaClass();
-
- // For each of the methods
- for (Method method : interfaze.getMethods()) {
- String expressionExtension = createExpressionExtension(method, interfaze, service.getName());
- xqueryImplementation.getXqExpressionExtensionsMap().put(method, expressionExtension);
- }
- }
- }
-
- private String createExpressionExtension(Method method, Class<?> interfaze, String serviceName) {
- StringBuffer exprBuf = new StringBuffer();
-
- exprBuf.append("\r\n");
-
- String methodName = method.getName();
-
- // For each of the declared parameters
- for (int i = 0; i < method.getParameterTypes().length; i++) {
- exprBuf.append("declare variable $" + methodName + "_" + i + " external;\r\n");
- }
-
- exprBuf.append(serviceName + ":" + methodName + "(");
-
- for (int i = 0; i < method.getParameterTypes().length; i++) {
- exprBuf.append("$" + methodName + "_" + i);
- if (i != method.getParameterTypes().length - 1) {
- exprBuf.append(", ");
- }
- }
- exprBuf.append(")");
-
- return exprBuf.toString();
- }
-}