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/*******************************************************************************
* Copyright (c) 2001, 2007 IBM Corporation and others.
* 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:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.wst.xsd.ui.internal.common.commands;
import java.util.List;
import java.util.Map;
import org.eclipse.wst.xml.core.internal.contentmodel.util.NamespaceTable;
import org.eclipse.wst.xsd.ui.internal.common.properties.sections.appinfo.SpecificationForExtensionsSchema;
import org.eclipse.wst.xsd.ui.internal.common.util.XSDCommonUIUtils;
import org.eclipse.xsd.XSDAnnotation;
import org.eclipse.xsd.XSDConcreteComponent;
import org.eclipse.xsd.XSDElementDeclaration;
import org.eclipse.xsd.XSDSchema;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
public class AddExtensionElementCommand extends AddExtensionCommand
{
XSDElementDeclaration element;
Element appInfo;
Element newElement;
public AddExtensionElementCommand(String label, XSDConcreteComponent input, XSDElementDeclaration element)
{
super(label);
this.component = input;
this.element = element;
}
public void execute()
{
try
{
beginRecording(component.getElement());
super.execute();
addAnnotationSet(component.getSchema(), extensionsSchemaSpec);
formatChild(component.getElement());
}
finally
{
endRecording();
}
}
public void undo()
{
super.undo();
XSDAnnotation xsdAnnotation = XSDCommonUIUtils.getInputXSDAnnotation(component, false);
xsdAnnotation.getElement().removeChild(appInfo);
List appInfos = xsdAnnotation.getApplicationInformation();
appInfos.remove(appInfo);
xsdAnnotation.updateElement();
}
public void setSchemaProperties(SpecificationForExtensionsSchema spec)
{
this.extensionsSchemaSpec = spec;
}
public void addAnnotationSet(XSDSchema xsdSchema, SpecificationForExtensionsSchema spec)
{
XSDAnnotation xsdAnnotation = XSDCommonUIUtils.getInputXSDAnnotation(component, true);
addAnnotationSet(spec, xsdAnnotation);
}
private void addAnnotationSet(SpecificationForExtensionsSchema spec, XSDAnnotation xsdAnnotation)
{
XSDSchema schema= xsdAnnotation.getSchema();
Element schemaElement = schema.getElement();
if (xsdAnnotation.getApplicationInformation().size() == 0)
{
appInfo = xsdAnnotation.createApplicationInformation(null);
xsdAnnotation.getElement().appendChild(appInfo);
List appInfos = xsdAnnotation.getApplicationInformation();
appInfos.add(appInfo);
}
else
{
// use the first appInfo
appInfo = (Element)xsdAnnotation.getApplicationInformation().get(0);
}
String prefix = addNamespaceDeclarationIfRequired(schemaElement, "p", spec.getNamespaceURI());
if (appInfo != null)
{
Document doc = appInfo.getOwnerDocument();
newElement = doc.createElementNS(spec.getNamespaceURI(), element.getName());
newElement.setPrefix(prefix);
appInfo.appendChild(newElement);
xsdAnnotation.updateElement();
}
}
public Object getNewObject()
{
return newElement;
}
/**
* @deprecated
*/
protected String createUniquePrefix(XSDConcreteComponent component)
{
String prefix = "p"; //$NON-NLS-1$
Map prefMapper = component.getSchema().getQNamePrefixToNamespaceMap();
if ( prefMapper.get(prefix) != null){
int i = 1;
while ( prefMapper.get(prefix + i) != null)
i++;
prefix += i;
}
return prefix;
}
// TODO... common this up with wsdl.ui
private String addNamespaceDeclarationIfRequired(Element schemaElement, String prefixHint, String namespace)
{
String prefix = null;
NamespaceTable namespaceTable = new NamespaceTable(schemaElement.getOwnerDocument());
namespaceTable.addElement(schemaElement);
prefix = namespaceTable.getPrefixForURI(namespace);
if (prefix == null)
{
String basePrefix = prefixHint;
prefix = basePrefix;
String xmlnsColon = "xmlns:"; //$NON-NLS-1$
String attributeName = xmlnsColon + prefix;
int count = 0;
while (schemaElement.getAttribute(attributeName) != null)
{
count++;
prefix = basePrefix + count;
attributeName = xmlnsColon + prefix;
}
schemaElement.setAttribute(attributeName, namespace);
}
return prefix;
}
}
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