1 files changed, 273 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/java-stable-20060304/sdo/impl/src/main/java/org/apache/tuscany/sdo/helper/XSDHelperImpl.java b/sca-java-1.x/tags/java-stable-20060304/sdo/impl/src/main/java/org/apache/tuscany/sdo/helper/XSDHelperImpl.java
new file mode 100644
index 0000000000..3173601861
--- /dev/null
+++ b/sca-java-1.x/tags/java-stable-20060304/sdo/impl/src/main/java/org/apache/tuscany/sdo/helper/XSDHelperImpl.java
@@ -0,0 +1,273 @@
+/**
+ *
+ *  Copyright 2005 The Apache Software Foundation or its licensors, as applicable.
+ *
+ *  Licensed 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.sdo.helper;
+
+
+import java.io.ByteArrayInputStream;
+import java.io.InputStream;
+import java.io.Reader;
+import java.util.Collection;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+import org.apache.tuscany.sdo.impl.DynamicDataObjectImpl;
+import org.apache.tuscany.sdo.util.DataObjectUtil;
+import org.eclipse.emf.common.util.URI;
+import org.eclipse.emf.ecore.EClass;
+import org.eclipse.emf.ecore.EClassifier;
+import org.eclipse.emf.ecore.EModelElement;
+import org.eclipse.emf.ecore.EPackage;
+import org.eclipse.emf.ecore.EStructuralFeature;
+import org.eclipse.emf.ecore.EcorePackage;
+import org.eclipse.emf.ecore.resource.Resource;
+import org.eclipse.emf.ecore.resource.ResourceSet;
+import org.eclipse.emf.ecore.util.EcoreUtil;
+import org.eclipse.emf.ecore.util.ExtendedMetaData;
+import org.eclipse.xsd.XSDConcreteComponent;
+import org.eclipse.xsd.XSDSchema;
+import org.eclipse.xsd.XSDTypeDefinition;
+import org.eclipse.xsd.ecore.XSDEcoreBuilder;
+import org.eclipse.xsd.util.XSDResourceImpl;
+import org.w3c.dom.Element;
+import org.xml.sax.InputSource;
+
+import commonj.sdo.Property;
+import commonj.sdo.Type;
+import commonj.sdo.helper.TypeHelper;
+import commonj.sdo.helper.XSDHelper;
+
+
+/**
+ * Provides access to additional information when the 
+ * Type or Property is defined by an XML Schema (XSD).
+ * Methods return null/false otherwise or if the information is unavailable.
+ * Defines Types from an XSD.
+ */
+public class XSDHelperImpl implements XSDHelper
+{
+  private XSDEcoreBuilder ecoreBuilder;
+
+  private ExtendedMetaData extendedMetaData;
+
+  public XSDHelperImpl(ExtendedMetaData extendedMetaData)
+  {
+    this.extendedMetaData = extendedMetaData;
+    ecoreBuilder = new SDOXSDEcoreBuilder(extendedMetaData);
+  }
+
+  public XSDHelperImpl(TypeHelper typeHelper)
+  {
+    this(((TypeHelperImpl)typeHelper).extendedMetaData);
+  }
+  
+  public String getLocalName(Type type)
+  {
+    return extendedMetaData.getName((EClassifier)type);
+  }
+
+  public String getLocalName(Property property)
+  {
+    return extendedMetaData.getName((EStructuralFeature)property);
+  }
+
+  public String getNamespaceURI(Property property)
+  {
+    return extendedMetaData.getNamespace((EStructuralFeature)property);
+  }
+
+  public boolean isAttribute(Property property)
+  {
+    return extendedMetaData.getFeatureKind((EStructuralFeature)property) == ExtendedMetaData.ATTRIBUTE_FEATURE;
+  }
+
+  public boolean isElement(Property property)
+  {
+    return extendedMetaData.getFeatureKind((EStructuralFeature)property) == ExtendedMetaData.ELEMENT_FEATURE;
+  }
+
+  public boolean isMixed(Type type)
+  {
+    if (type instanceof EClass)
+    {
+      return extendedMetaData.getContentKind((EClass)type) == ExtendedMetaData.MIXED_CONTENT;
+    }
+    else
+    {
+      return false;
+    }
+  }
+
+  public boolean isXSD(Type type)
+  {
+    return ((EModelElement)type).getEAnnotation(ExtendedMetaData.ANNOTATION_URI) != null;
+  }
+
+  public Property getGlobalProperty(String uri, String propertyName, boolean isElement)
+  {
+    if (isElement)
+    {
+      return (Property)extendedMetaData.getElement(uri, propertyName);
+    }
+    else
+    {
+      return (Property)extendedMetaData.getAttribute(uri, propertyName);
+    }
+  }
+
+  public String getAppinfo(Type type, String source)
+  {
+    return getAppinfo((EModelElement)type, source);
+  }
+
+  public String getAppinfo(Property property, String source)
+  {
+    return getAppinfo((EModelElement)property, source);
+  }
+
+  protected String getAppinfo(EModelElement eModelElement, String source)
+  {
+    return (String)eModelElement.getEAnnotation(source).getDetails().get("appinfo");
+  }
+
+  public List /*Type*/define(String xsd)
+  {
+    InputStream inputStream = new ByteArrayInputStream(xsd.getBytes());
+    return define(inputStream, "*.xsd");
+
+  }
+
+  public List /*Type*/define(Reader xsdReader, String schemaLocation)
+  {
+
+    InputSource inputSource = new InputSource(xsdReader);
+    return define(inputSource, schemaLocation);
+
+  }
+
+  public List /*Type*/define(InputStream xsdInputStream, String schemaLocation)
+  {
+    InputSource inputSource = new InputSource(xsdInputStream);
+    return define(inputSource, schemaLocation);
+  }
+
+  protected List /*Type*/define(InputSource inputSource, String schemaLocation)
+  {
+    try
+    {
+      ResourceSet resourceSet = DataObjectUtil.createResourceSet();
+      Resource model = resourceSet.createResource(URI.createURI(schemaLocation != null ? schemaLocation : "null.xsd"));
+      ((XSDResourceImpl)model).load(inputSource, null);
+      XSDSchema schema = (XSDSchema)model.getContents().get(0);
+      
+      // If define() is called more than once for the same XMLSchema, return the existing defined types
+      //FIXME ... need to rethink this design
+      //if (!ecoreBuilder.getTargetNamespaceToEPackageMap().containsKey(schema.getTargetNamespace()))
+      // also return generated types registered via SDOUtil.registerStaticTypes()
+      EPackage ePackage = extendedMetaData.getPackage(schema.getTargetNamespace());
+      if (ePackage == null)
+      {
+        ecoreBuilder.generate(schema);
+        Collection newEPackages = ecoreBuilder.getTargetNamespaceToEPackageMap().values();
+      
+        for (Iterator iter = newEPackages.iterator(); iter.hasNext();)
+        {
+          EPackage currentPackage = (EPackage)iter.next();
+          currentPackage.setEFactoryInstance(new DynamicDataObjectImpl.FactoryImpl());
+          EcoreUtil.freeze(currentPackage);
+        }
+      }
+      ePackage = extendedMetaData.getPackage(schema.getTargetNamespace());
+      return ePackage.getEClassifiers();
+    }
+    catch (Exception e)
+    {
+      throw new IllegalArgumentException();
+    }
+  }
+
+  public String generate(List /*Type*/types)
+  {
+    throw new UnsupportedOperationException(); //TODO
+  }
+
+  public String generate(List /*Type*/types, Map /*String, String*/namespaceToSchemaLocation)
+  {
+    throw new UnsupportedOperationException(); //TODO
+  }
+  
+  protected static class SDOXSDEcoreBuilder extends XSDEcoreBuilder
+  {
+    public SDOXSDEcoreBuilder(ExtendedMetaData extendedMetaData)
+    {
+      super(extendedMetaData);
+    }
+
+    protected String getEcoreAttribute(Element element, String attribute)
+    {
+      String sdoAttribute = null;
+      
+      if ("name".equals(attribute))
+        sdoAttribute = "name";
+      else if ("opposite".equals(attribute))
+        sdoAttribute = "oppositeProperty";
+      else if ("mixed".equals(attribute))
+        sdoAttribute = "sequence";
+      
+      if (sdoAttribute != null)
+      {
+        return 
+          element != null && element.hasAttributeNS("commonj.sdo/xml", sdoAttribute) ? 
+            element.getAttributeNS("commonj.sdo/xml", sdoAttribute) : 
+            null;
+      }
+      
+      if ("package".equals(attribute))
+        sdoAttribute = "package";
+      else if ("instanceClass".equals(attribute))
+        sdoAttribute = "instanceClass";
+
+      if (sdoAttribute != null)
+      {
+        return 
+          element != null && element.hasAttributeNS("commonj.sdo/java", sdoAttribute) ? 
+            element.getAttributeNS("commonj.sdo/java", sdoAttribute) : 
+            null;
+      }
+
+      return super.getEcoreAttribute(element, attribute);
+    }
+
+    protected XSDTypeDefinition getEcoreTypeQNameAttribute(XSDConcreteComponent xsdConcreteComponent, String attribute)
+    {
+      String sdoAttribute = null;
+      
+      if ("reference".equals(attribute)) sdoAttribute = "propertyType";
+      
+      if (sdoAttribute != null)
+      {
+        Element element = xsdConcreteComponent.getElement();
+        return  element == null ? null : getEcoreTypeQNameAttribute(xsdConcreteComponent, element, "commonj.sdo/xml", sdoAttribute);
+      }
+
+      return super.getEcoreTypeQNameAttribute(xsdConcreteComponent, attribute);
+    }
+     
+  }
+
+}