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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.
- */
-
- /* $Id$ */
-
- package org.apache.fop.fo.extensions;
-
- import java.util.HashMap;
- import java.util.Set;
-
- import org.apache.xmlgraphics.util.QName;
-
- import org.apache.fop.fo.ElementMapping;
-
- /**
- * Element mapping for FOP's internal extension to XSL-FO.
- */
- public class InternalElementMapping extends ElementMapping {
-
- /** The FOP extension namespace URI */
- public static final String URI = "http://xmlgraphics.apache.org/fop/internal";
-
- /** The standard XML prefix for elements and attributes in this namespace. */
- public static final String STANDARD_PREFIX = "foi";
-
- private static final Set<String> PROPERTY_ATTRIBUTES = new java.util.HashSet<String>();
-
- static {
- //These are FOP's extension properties for accessibility
- PROPERTY_ATTRIBUTES.add("ptr");
- }
-
- /**
- * Constructor.
- */
- public InternalElementMapping() {
- namespaceURI = URI;
- }
-
- /**
- * Initialize the data structures.
- */
- protected void initialize() {
- if (foObjs == null) {
- foObjs = new HashMap<String, Maker>();
- }
- }
-
- /** {@inheritDoc} */
- public String getStandardPrefix() {
- return STANDARD_PREFIX;
- }
-
- /** {@inheritDoc} */
- public boolean isAttributeProperty(QName attributeName) {
- if (!URI.equals(attributeName.getNamespaceURI())) {
- throw new IllegalArgumentException("The namespace URIs don't match");
- }
- return PROPERTY_ATTRIBUTES.contains(attributeName.getLocalName());
- }
-
- }
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