aw080/main/ooxml/source/framework/SchemaParser/src/org/apache/openoffice/ooxml/schema/model/optimize/RequestVisitor.java

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package org.apache.openoffice.ooxml.schema.model.optimize;

import org.apache.openoffice.ooxml.schema.model.attribute.Attribute;
import org.apache.openoffice.ooxml.schema.model.attribute.AttributeGroupReference;
import org.apache.openoffice.ooxml.schema.model.attribute.AttributeReference;
import org.apache.openoffice.ooxml.schema.model.base.INode;
import org.apache.openoffice.ooxml.schema.model.base.NodeVisitorAdapter;
import org.apache.openoffice.ooxml.schema.model.complex.Element;
import org.apache.openoffice.ooxml.schema.model.complex.Extension;
import org.apache.openoffice.ooxml.schema.model.complex.GroupReference;
import org.apache.openoffice.ooxml.schema.model.schema.SchemaBase;
import org.apache.openoffice.ooxml.schema.model.simple.List;
import org.apache.openoffice.ooxml.schema.model.simple.Restriction;
import org.apache.openoffice.ooxml.schema.model.simple.SimpleTypeReference;

/** A visitor that is called for all nodes of a complex or simple type to mark
 *  the referenced types as being used.
 */
public class RequestVisitor
    extends NodeVisitorAdapter
{
    RequestVisitor (
        final SchemaBase aSourceSchema,
        final SchemaOptimizer aOptimizer)
    {
        maSourceSchemaBase = aSourceSchema;
        maSchemaOptimizer = aOptimizer;
    }
    
    
    @Override public void Visit (final Attribute aAttribute)
    {
        maSchemaOptimizer.RequestType(aAttribute.GetTypeName());
    }

    @Override public void Visit (final AttributeReference aAttributeReference)
    {
        maSchemaOptimizer.RequestType(aAttributeReference.GetReferencedName());
    }

    @Override public void Visit (final AttributeGroupReference aAttributeGroupReference)
    {
        maSchemaOptimizer.RequestType(aAttributeGroupReference.GetReferencedName());
    }

    @Override public void Visit (final Element aElement)
    {
        maSchemaOptimizer.RequestType(aElement.GetTypeName());
    }
    
    @Override public void Visit (final Extension aExtension)
    {
        maSchemaOptimizer.RequestType(aExtension.GetBaseTypeName());
    }
    
    @Override public void Visit (final GroupReference aReference)
    {
        maSchemaOptimizer.RequestType(aReference.GetReferencedGroup(maSourceSchemaBase));
    }
    
    @Override public void Visit (final List aList)
    {
        maSchemaOptimizer.RequestType(aList.GetItemType());
    }
    
    @Override public void Visit (final Restriction aRestriction)
    {
        maSchemaOptimizer.RequestType(aRestriction.GetBaseType());
    }

    @Override public void Visit (final SimpleTypeReference aReference)
    {
        maSchemaOptimizer.RequestType(aReference.GetReferencedSimpleType(maSourceSchemaBase));
    }
    
    @Override public void Default (final INode aNode)
    {
        switch (aNode.GetNodeType())
        {
            case All:
            case Any:
            case AttributeGroup:
            case BuiltIn:
            case Choice:
            case ComplexContent:
            case ComplexType:
            case ElementReference:
            case Group:
            case List:
            case OccurrenceIndicator:
            case Sequence:
            case SimpleContent:
            case SimpleType:
            case Union:
                break;

            default:
                throw new RuntimeException(
                    String.format("don't know how to request %s which was defined at %s",
                        aNode.toString(),
                        aNode.GetLocation()));
        }
    }
    
    private final SchemaBase maSourceSchemaBase;
    private final SchemaOptimizer maSchemaOptimizer;
}