1 files changed, 128 insertions, 0 deletions
diff --git a/ooxml/source/framework/SchemaParser/src/org/apache/openoffice/ooxml/schema/model/optimize/RequestVisitor.java b/ooxml/source/framework/SchemaParser/src/org/apache/openoffice/ooxml/schema/model/optimize/RequestVisitor.java
new file mode 100644
index 000000000000..20aa02dd1752
--- /dev/null
+++ b/ooxml/source/framework/SchemaParser/src/org/apache/openoffice/ooxml/schema/model/optimize/RequestVisitor.java
@@ -0,0 +1,128 @@
+/**************************************************************
+*
+* 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.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;
+}