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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 org.apache.tuscany.sca.databinding.sdo.xml;
import java.io.IOException;
import java.io.InputStream;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.net.URL;
import java.net.URLConnection;
import java.util.ArrayList;
import java.util.List;
import org.apache.tuscany.sca.contribution.Artifact;
import org.apache.tuscany.sca.contribution.Contribution;
import org.apache.tuscany.sca.contribution.ContributionFactory;
import org.apache.tuscany.sca.contribution.processor.ContributionResolveException;
import org.apache.tuscany.sca.contribution.processor.ProcessorContext;
import org.apache.tuscany.sca.contribution.resolver.ClassReference;
import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
import org.apache.tuscany.sca.core.FactoryExtensionPoint;
import org.apache.tuscany.sca.databinding.sdo.SDOTypes;
import org.apache.tuscany.sca.monitor.Monitor;
import org.apache.tuscany.sca.monitor.Problem;
import org.apache.tuscany.sca.monitor.Problem.Severity;
import org.apache.tuscany.sca.monitor.impl.ProblemImpl;
import org.apache.tuscany.sca.xsd.XSDFactory;
import org.apache.tuscany.sca.xsd.XSDefinition;
import org.apache.tuscany.sdo.api.SDOUtil;
import commonj.sdo.Type;
import commonj.sdo.helper.HelperContext;
import commonj.sdo.helper.XSDHelper;
/**
* SDO types model resolver that aggregates the SDO type registration for an SCA contribution
*/
public class SDOTypesModelResolver implements ModelResolver {
private Contribution contribution;
private HelperContext helperContext;
private List<SDOTypes> sdoTypes = new ArrayList<SDOTypes>();
private ContributionFactory contributionFactory;
private XSDFactory xsdFactory;
private ProcessorContext context;
public SDOTypesModelResolver(Contribution contribution, FactoryExtensionPoint modelFactories) {
super();
this.contributionFactory = modelFactories.getFactory(ContributionFactory.class);
this.xsdFactory = modelFactories.getFactory(XSDFactory.class);
this.contribution = contribution;
}
public void addModel(Object resolved, ProcessorContext context) {
if (helperContext == null) {
helperContext = SDOUtil.createHelperContext();
}
this.context = context;
SDOTypes types = (SDOTypes)resolved;
try {
loadSDOTypes(types, contribution.getModelResolver());
} catch (ContributionResolveException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
sdoTypes.add(types);
}
public Object removeModel(Object resolved, ProcessorContext context) {
SDOTypes types = (SDOTypes)resolved;
return sdoTypes.remove(types);
}
public <T> T resolveModel(Class<T> modelClass, T unresolved, ProcessorContext context) {
SDOTypes types = (SDOTypes)unresolved;
String ns = types.getNamespace();
this.context = context;
for (SDOTypes t : sdoTypes) {
if (t.getNamespace().equals(types.getNamespace())) {
try {
loadSDOTypes(types, contribution.getModelResolver());
} catch (ContributionResolveException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return (T)t;
}
}
return (T)types;
}
private static void register(Class<?> factoryClass, HelperContext helperContext) throws Exception {
Field field = factoryClass.getField("INSTANCE");
Object factory = field.get(null);
Method method = factory.getClass().getMethod("register", new Class[] {HelperContext.class});
method.invoke(factory, new Object[] {helperContext});
}
private void defineFromFactory(SDOTypes importSDO, ModelResolver resolver) throws ContributionResolveException {
String factoryName = importSDO.getFactory();
if (factoryName != null) {
ClassReference reference = new ClassReference(factoryName);
ClassReference resolved = resolver.resolveModel(ClassReference.class, reference, context);
if (resolved != null && !resolved.isUnresolved()) {
try {
Class<?> factoryClass = resolved.getJavaClass();
// Get the namespace
Field field = factoryClass.getField("NAMESPACE_URI");
importSDO.setNamespace((String)field.get(null));
register(factoryClass, helperContext);
importSDO.setUnresolved(false);
} catch (Exception e) {
ContributionResolveException ce = new ContributionResolveException(e);
error(context.getMonitor(), "ContributionResolveException", resolver, ce);
//throw ce;
}
} else {
error(context.getMonitor(), "FailToResolveClass", resolver, factoryName);
//ContributionResolveException loaderException =
//new ContributionResolveException("Fail to resolve class: " + factoryName);
//throw loaderException;
}
}
}
private void defineFromXSD(SDOTypes importSDO, ModelResolver resolver) throws ContributionResolveException {
String location = importSDO.getSchemaLocation();
if (location != null) {
try {
Artifact artifact = contributionFactory.createArtifact();
artifact.setURI(location);
artifact = resolver.resolveModel(Artifact.class, artifact, context);
if (artifact.getLocation() != null) {
String wsdlURL = artifact.getLocation();
URLConnection connection = new URL(wsdlURL).openConnection();
connection.setUseCaches(false);
InputStream xsdInputStream = connection.getInputStream();
try {
XSDHelper xsdHelper = helperContext.getXSDHelper();
List<Type> sdoTypes = xsdHelper.define(xsdInputStream, wsdlURL);
for (Type t : sdoTypes) {
importSDO.setNamespace(t.getURI());
break;
}
importSDO.getTypes().addAll(sdoTypes);
} finally {
xsdInputStream.close();
}
importSDO.setUnresolved(false);
} else {
error(context.getMonitor(), "FailToResolveLocation", resolver, location);
//ContributionResolveException loaderException = new ContributionResolveException("Fail to resolve location: " + location);
//throw loaderException;
}
} catch (IOException e) {
ContributionResolveException ce = new ContributionResolveException(e);
error(context.getMonitor(), "ContributionResolveException", resolver, ce);
//throw ce;
}
} else {
String ns = importSDO.getNamespace();
if (ns != null) {
XSDefinition xsd = xsdFactory.createXSDefinition();
xsd.setUnresolved(true);
xsd.setNamespace(ns);
xsd = resolver.resolveModel(XSDefinition.class, xsd, context);
if (!xsd.isUnresolved()) {
XSDHelper xsdHelper = helperContext.getXSDHelper();
xsdHelper.define(xsd.getLocation().toString());
}
}
}
}
private void loadSDOTypes(SDOTypes types, ModelResolver resolver) throws ContributionResolveException {
synchronized (types) {
if (types.isUnresolved()) {
defineFromFactory(types, resolver);
defineFromXSD(types, resolver);
types.setUnresolved(false);
}
}
}
/**
* Report a exception.
*
* @param problems
* @param message
* @param model
*/
private void error(Monitor monitor, String message, Object model, Exception ex) {
if (monitor != null) {
Problem problem =
new ProblemImpl(this.getClass().getName(), "databinding-sdo-validation-messages", Severity.ERROR,
message, model, message, ex);
monitor.problem(problem);
}
}
/**
* Report a error.
*
* @param problems
* @param message
* @param model
*/
private void error(Monitor monitor, String message, Object model, Object... messageParameters) {
if (monitor != null) {
Problem problem =
new ProblemImpl(this.getClass().getName(), "databinding-sdo-validation-messages", Severity.ERROR,
message, model, message, (Object[])messageParameters);
monitor.problem(problem);
}
}
}
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