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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.openoffice.ooxml.schema.simple;
import java.util.Map;
import java.util.Vector;
import org.apache.openoffice.ooxml.schema.misc.Log;
import org.apache.openoffice.ooxml.schema.model.simple.Restriction;
public class UnionNode
implements ISimpleTypeNode
{
UnionNode ()
{
maTypes = new Vector<>();
mbIsList = false;
}
@Override
public void ApplyRestriction (
final Restriction aNode,
final Map<String,Integer> aValueToIdMap)
{
throw new RuntimeException("can not handle restriction on union");
}
public void AddNode (final ISimpleTypeNode aType)
{
if (aType instanceof UnionNode)
{
// Integrate union of child into this union.
final UnionNode aChildUnion = (UnionNode)aType;
for (final ISimpleTypeNode aChildChild : aChildUnion.maTypes)
maTypes.add(aChildChild);
}
else if (aType instanceof StringNode)
{
// Is there already a string child?
for (int nIndex=0; nIndex<maTypes.size(); ++nIndex)
{
final ISimpleTypeNode aChild = maTypes.get(nIndex);
if (aChild instanceof StringNode)
{
// Yes. Can it be joined with the new child?
final ISimpleTypeNode aNewChild = ((StringNode)aChild).Join((StringNode)aType);
if (aNewChild != null)
{
// Yes. Replace the child with the joined child.
maTypes.set(nIndex, aNewChild);
return;
}
}
}
// When we reach this point then there was no join possible.
// Just add the new type.
maTypes.add(aType);
}
else
maTypes.add(aType);
}
@Override
public void Print (final Log aLog)
{
aLog.printf("union of %d sub types\n", maTypes.size());
aLog.StartBlock();
for (final ISimpleTypeNode aType : maTypes)
aType.Print(aLog);
aLog.EndBlock();
}
@Override
public boolean IsList ()
{
return mbIsList;
}
@Override
public void SetIsList ()
{
mbIsList = true;
}
@Override
public String toString ()
{
return "union";
}
ISimpleTypeNode[] GetChildren ()
{
return maTypes.toArray(new ISimpleTypeNode[maTypes.size()]);
}
@Override
public void AcceptVisitor (final ISimpleTypeNodeVisitor aVisitor)
{
aVisitor.Visit(this);
}
private final Vector<ISimpleTypeNode> maTypes;
private boolean mbIsList;
}
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