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/*
* 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 sample.impl;
import static javax.xml.stream.XMLStreamConstants.END_ELEMENT;
import static sample.impl.SampleImplementation.QN;
import static sample.impl.ImplUtil.clazz;
import static sample.impl.ImplUtil.definition;
import static sample.impl.ImplUtil.implementation;
import static sample.impl.ImplUtil.interfaze;
import static sample.impl.ImplUtil.qname;
import static sample.impl.ImplUtil.reference;
import static sample.impl.ImplUtil.service;
import java.lang.annotation.Annotation;
import java.lang.reflect.Field;
import javax.wsdl.PortType;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.XMLStreamWriter;
import org.apache.tuscany.sca.assembly.AssemblyFactory;
import org.apache.tuscany.sca.contribution.processor.BaseStAXArtifactProcessor;
import org.apache.tuscany.sca.contribution.processor.ContributionReadException;
import org.apache.tuscany.sca.contribution.processor.ContributionResolveException;
import org.apache.tuscany.sca.contribution.processor.ContributionWriteException;
import org.apache.tuscany.sca.contribution.processor.ProcessorContext;
import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor;
import org.apache.tuscany.sca.contribution.resolver.ClassReference;
import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
import org.apache.tuscany.sca.core.ExtensionPointRegistry;
import org.apache.tuscany.sca.core.FactoryExtensionPoint;
import org.apache.tuscany.sca.databinding.xml.DOMDataBinding;
import org.apache.tuscany.sca.interfacedef.InvalidInterfaceException;
import org.apache.tuscany.sca.interfacedef.java.JavaInterfaceFactory;
import org.apache.tuscany.sca.interfacedef.wsdl.WSDLDefinition;
import org.apache.tuscany.sca.interfacedef.wsdl.WSDLFactory;
import org.apache.tuscany.sca.interfacedef.wsdl.WSDLInterface;
import org.apache.tuscany.sca.interfacedef.wsdl.WSDLObject;
import sample.api.Java;
import sample.api.WSDL;
/**
* StAX artifact processor for Sample implementations.
*
* @version $Rev$ $Date$
*/
public class SampleImplementationProcessor extends BaseStAXArtifactProcessor implements StAXArtifactProcessor<SampleImplementation> {
final AssemblyFactory af;
final JavaInterfaceFactory jif;
final WSDLFactory wf;
public SampleImplementationProcessor(final ExtensionPointRegistry ep) {
final FactoryExtensionPoint fep = ep.getExtensionPoint(FactoryExtensionPoint.class);
this.af = fep.getFactory(AssemblyFactory.class);
this.jif = fep.getFactory(JavaInterfaceFactory.class);
this.wf = fep.getFactory(WSDLFactory.class);
}
public QName getArtifactType() {
return QN;
}
public Class<SampleImplementation> getModelType() {
return SampleImplementation.class;
}
public SampleImplementation read(final XMLStreamReader r, final ProcessorContext ctx) throws ContributionReadException, XMLStreamException {
// Read the component implementation element
final SampleImplementation impl = implementation(r.getAttributeValue(null, "class"));
while(r.hasNext() && !(r.next() == END_ELEMENT && QN.equals(r.getName())))
;
return impl;
}
public void resolve(final SampleImplementation impl, final ModelResolver res, final ProcessorContext ctx) throws ContributionResolveException {
try {
// Resolve and introspect the implementation class
impl.clazz = resolve(impl.name, res, ctx);
for(final Annotation a: impl.clazz.getAnnotations()) {
if(a instanceof Java)
impl.getServices().add(service(clazz(a), jif, af));
else if(a instanceof WSDL)
impl.getServices().add(service(resolve(qname(a), res, ctx, wf), wf, af));
}
for(Field f: impl.clazz.getDeclaredFields()) {
for(final Annotation a: f.getAnnotations()) {
if(a instanceof Java)
impl.getReferences().add(reference(f.getName(), clazz(a), jif, af));
else if(a instanceof WSDL)
impl.getReferences().add(reference(f.getName(), resolve(qname(a), res, ctx, wf), wf, af));
}
}
impl.setUnresolved(false);
} catch(InvalidInterfaceException e) {
throw new ContributionResolveException(e);
}
}
public void write(final SampleImplementation impl, final XMLStreamWriter w, final ProcessorContext ctx) throws ContributionWriteException, XMLStreamException {
writeStart(w, QN.getNamespaceURI(), QN.getLocalPart(), new XAttr("class", impl.name));
writeEnd(w);
}
/**
* Resolve a Java class.
*/
static Class<?> resolve(final String name, final ModelResolver res, final ProcessorContext ctx) throws ContributionResolveException {
final ClassReference cr = res.resolveModel(ClassReference.class, new ClassReference(name), ctx);
if(cr.getJavaClass() != null)
return cr.getJavaClass();
throw new ContributionResolveException(new ClassNotFoundException(name));
}
/**
* Resolve a WSDL interface.
*/
static WSDLInterface resolve(final QName name, final ModelResolver res, final ProcessorContext ctx, final WSDLFactory wif) throws ContributionResolveException {
final WSDLInterface wi = res.resolveModel(WSDLInterface.class, interfaze(name, wif), ctx);
if(!wi.isUnresolved())
return domBound(wi);
final WSDLDefinition wd = res.resolveModel(WSDLDefinition.class, definition(wi.getName(), wif), ctx);
if(wd.isUnresolved())
throw new ContributionResolveException("Couldn't find " + name.getNamespaceURI());
WSDLObject<PortType> pt = wd.getWSDLObject(PortType.class, name);
if(pt == null)
throw new ContributionResolveException("Couldn't find " + name);
try {
final WSDLInterface nwi = wif.createWSDLInterface(pt.getElement(), wd, res, ctx.getMonitor());
nwi.setWsdlDefinition(wd);
res.addModel(nwi, ctx);
return domBound(nwi);
} catch(InvalidInterfaceException e) {
throw new ContributionResolveException(e);
}
}
/**
* Return a WSDL interface configured to use a DOM databinding.
*/
static WSDLInterface domBound(WSDLInterface wi) throws ContributionResolveException {
try {
final WSDLInterface domwi = (WSDLInterface)wi.clone();
domwi.resetDataBinding(DOMDataBinding.NAME);
return domwi;
} catch(CloneNotSupportedException e) {
throw new ContributionResolveException(e);
}
}
}
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