/*******************************************************************************
* Copyright (c) 2010 SAP AG.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Emil Simeonov - initial API and implementation.
* Dimitar Donchev - initial API and implementation.
* Dimitar Tenev - initial API and implementation.
* Nevena Manova - initial API and implementation.
* Georgi Konstantinov - initial API and implementation.
* Keshav Veerapaneni - initial API and implementation.
*******************************************************************************/
package org.eclipse.wst.sse.sieditor.command.emf.xsd;
import java.text.MessageFormat;
import java.util.List;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.xsd.XSDAttributeDeclaration;
import org.eclipse.xsd.XSDConcreteComponent;
import org.eclipse.xsd.XSDElementDeclaration;
import org.eclipse.xsd.XSDNamedComponent;
import org.eclipse.xsd.XSDPackage;
import org.eclipse.xsd.XSDParticle;
import org.eclipse.xsd.XSDParticleContent;
import org.eclipse.xsd.XSDSimpleTypeDefinition;
import org.eclipse.xsd.XSDTypeDefinition;
import org.w3c.dom.NamedNodeMap;
import org.eclipse.wst.sse.sieditor.command.common.AbstractCompositeNotificationOperation;
import org.eclipse.wst.sse.sieditor.command.common.AbstractNotificationOperation;
import org.eclipse.wst.sse.sieditor.model.Activator;
import org.eclipse.wst.sse.sieditor.model.api.IModelRoot;
import org.eclipse.wst.sse.sieditor.model.api.IXSDModelRoot;
import org.eclipse.wst.sse.sieditor.model.i18n.Messages;
import org.eclipse.wst.sse.sieditor.model.utils.EmfXsdUtils;
import org.eclipse.wst.sse.sieditor.model.xsd.api.IElement;
import org.eclipse.wst.sse.sieditor.model.xsd.api.IType;
import org.eclipse.wst.sse.sieditor.model.xsd.impl.AbstractType;
import org.eclipse.wst.sse.sieditor.model.xsd.impl.Element;
import org.eclipse.wst.sse.sieditor.model.xsd.impl.Schema;
import org.eclipse.wst.sse.sieditor.model.xsd.impl.UnresolvedType;
/**
* Command for setting type for Local ElementDeclarations. It also does all the
* additional cleaning up need for setting the type definintion in case the
* element has anonymous type or if it refers some global element etc.
*
*
*/
public class SetElementTypeCommand extends AbstractCompositeNotificationOperation {
private IType _type;
private final IElement element;
public SetElementTypeCommand(IElement element, IType newType) {
this(element.getModelRoot(), element, newType);
}
public SetElementTypeCommand(IModelRoot root, IElement element, IType newType) {
super(root, element, Messages.SetElementTypeCommand_set_element_type_command_label);
this.element = element;
this._type = newType;
setTransactionPolicy(TransactionPolicy.MULTI);
}
@Override
public AbstractNotificationOperation getNextOperation(List<AbstractNotificationOperation> subOperations) {
if (subOperations.isEmpty()) {
IXSDModelRoot elementModelRoot = element.getModelRoot();
return new org.eclipse.wst.sse.sieditor.command.emf.xsd.ImportSchemaCommand(elementModelRoot, elementModelRoot
.getSchema(), (AbstractType) _type);
} else if (subOperations.size() == 1) {
return new SetElementTypeCommandWithoutImport(root, element, _type);
}
return null;
}
private class SetElementTypeCommandWithoutImport extends AbstractNotificationOperation {
private IType _type;
private final IElement element;
public SetElementTypeCommandWithoutImport(final IModelRoot root, final IElement element, final IType type) {
super(root, element, Messages.SetElementTypeCommand_set_element_type_command_label);
this.element = element;
this._type = type;
}
@Override
public IStatus run(IProgressMonitor monitor, IAdaptable info) throws ExecutionException {
IType elementType = element.getType();
// Check if facets can be reused and in such case execute
// SetBaseTypeCommand
IStatus iStatus = SetBaseTypeCommand
.setBaseTypeIfFacetsCanBeReused(elementType, _type, monitor, info, getModelRoot());
if (iStatus != null) {
// SetBaseTypeCommand is executed
return iStatus;
}
final Schema schema = ((Element) element).getSchema();
IType resolvedType = schema.resolveType((AbstractType) _type);
if (resolvedType instanceof UnresolvedType) {
return new Status(IStatus.ERROR, Activator.PLUGIN_ID, MessageFormat.format(
Messages.SetElementTypeCommand_msg_can_not_resolve_type_X, _type.getName()));
}
_type = resolvedType;
final XSDNamedComponent typeToBeSet = _type.getComponent();
final XSDConcreteComponent elementWithNewType = (XSDConcreteComponent) modelObject.getComponent();
if (typeToBeSet instanceof XSDTypeDefinition) {
final XSDTypeDefinition xsdType = (XSDTypeDefinition) typeToBeSet;
if (elementWithNewType instanceof XSDAttributeDeclaration) {
if (xsdType instanceof XSDSimpleTypeDefinition) {
final XSDAttributeDeclaration attribute = (XSDAttributeDeclaration) elementWithNewType;
if (null != _type) {
// unset already set type
((EObject) attribute).eUnset(XSDPackage.eINSTANCE
.getXSDAttributeDeclaration_AnonymousTypeDefinition());
((EObject) attribute).eUnset(XSDPackage.eINSTANCE.getXSDAttributeDeclaration_TypeDefinition());
}
if (attribute.isAttributeDeclarationReference()) {
// if attribute was referring to a global attribute
// then
// set the name for
// the attribute
String name = attribute.getResolvedAttributeDeclaration().getName();
final NamedNodeMap attributes = attribute.getElement().getAttributes();
if (attributes.getNamedItem(EmfXsdUtils.ATTRIBUTE_REF) != null) {
attributes.removeNamedItem(EmfXsdUtils.ATTRIBUTE_REF);
}
if (null != name && null == attribute.getName())
attribute.setName(name);
}
// now attribute is a condition for setting the type
// definition
attribute.setTypeDefinition((XSDSimpleTypeDefinition) xsdType);
} else {
// DOIT throw User Exception
}
} else if (elementWithNewType instanceof XSDParticle) {
final XSDParticleContent content = ((XSDParticle) elementWithNewType).getContent();
if (content instanceof XSDElementDeclaration) {
final XSDElementDeclaration element = (XSDElementDeclaration) content;
if (null != _type) {
// unset already referred type defintion
((EObject) element).eUnset(XSDPackage.eINSTANCE.getXSDElementDeclaration_AnonymousTypeDefinition());
((EObject) element).eUnset(XSDPackage.eINSTANCE.getXSDElementDeclaration_TypeDefinition());
}
if (element.isElementDeclarationReference()) {
// if attribute was referring to a global element
// then
// set the name
// for the element
String name = element.getResolvedElementDeclaration().getName();
final NamedNodeMap attributes = element.getElement().getAttributes();
if (attributes.getNamedItem(EmfXsdUtils.ATTRIBUTE_REF) != null) {
attributes.removeNamedItem(EmfXsdUtils.ATTRIBUTE_REF);
}
// ((EObject)element).eUnset(XSDPackage.eINSTANCE.getXSDElementDeclaration_ElementDeclarationReference());
if (null != name && null == element.getName())
element.setName(name);
}
// set type after all the initial cleanup
element.setTypeDefinition(xsdType);
} else {
throw new RuntimeException("Component is not an instanceof XSDElementDeclaration"); //$NON-NLS-1$
}
}
} else if (typeToBeSet instanceof XSDElementDeclaration && elementWithNewType instanceof XSDParticle) {
// set ref value for the element
final XSDParticleContent content = ((XSDParticle) elementWithNewType).getContent();
if (content instanceof XSDElementDeclaration) {
final XSDElementDeclaration element = (XSDElementDeclaration) content;
if (null != _type) {
// unset name, anonymous type and already assigned type
// defintion for the element
// before setting resolved element declaration
((EObject) element).eUnset(XSDPackage.eINSTANCE.getXSDElementDeclaration_AnonymousTypeDefinition());
// do unset "type" before call of
// "element.setResolvedElementDeclaration((XSDElementDeclaration) typeToBeSet);"
// because after that it has no effect
((EObject) element).eUnset(XSDPackage.eINSTANCE.getXSDElementDeclaration_TypeDefinition());
((EObject) element).eUnset(XSDPackage.eINSTANCE.getXSDNamedComponent_Name());
}
element.setResolvedElementDeclaration((XSDElementDeclaration) typeToBeSet);
// this call has to be done once again, because
// "element.setResolvedElementDeclaration((XSDElementDeclaration) typeToBeSet);"
// do set "type="anyType""
((EObject) element).eUnset(XSDPackage.eINSTANCE.getXSDElementDeclaration_TypeDefinition());
}
}
return Status.OK_STATUS;
}
@Override
public boolean canExecute() {
return modelObject != null && _type != null && !(_type instanceof UnresolvedType) && _type instanceof AbstractType
&& modelObject.getComponent() != null;
}
}
}