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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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* Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
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* The contents of this file are subject to the terms of either the GNU
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* General Public License Version 2 only ("GPL") or the Common
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* Development and Distribution License("CDDL") (collectively, the
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* "License"). You may not use this file except in compliance with the
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* License. You can obtain a copy of the License at
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* http://www.netbeans.org/cddl-gplv2.html
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* or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
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* specific language governing permissions and limitations under the
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* License. When distributing the software, include this License Header
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* Notice in each file and include the License file at
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* nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Sun in the GPL Version 2 section of the License file that
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* License Header, with the fields enclosed by brackets [] replaced by
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* your own identifying information:
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* "Portions Copyrighted [year] [name of copyright owner]"
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* The Original Software is NetBeans. The Initial Developer of the Original
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* Software is Sun Microsystems, Inc. Portions Copyright 1997-2007 Sun
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package org.netbeans.modules.xml.core.wizard;
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import java.util.HashMap;
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import org.openide.loaders.DataObject;
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import org.openide.nodes.Node;
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* An ExternalReferenceDecorator is used to control the appearance of the
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* nodes in the ExternalReferenceCustomizer.
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* @author Nathan Fiedler
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public class ExternalReferenceDecorator {
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private SchemaPanel panel;
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private static String SCHEMA = "xsd";
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private static int counter = 0;
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/** Prefix for the namespace prefix values (e.g. "ns"). */
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private static final String PREFIX_PREFIX = "ns"; // NOI18N
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/** Hashmap to keep track of prefixes */
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private Map prefixMap = new HashMap();
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public ExternalReferenceDecorator(SchemaPanel panel){
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* Create an ExternalReferenceNode with the given delegate node.
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* Implementors may wish to delegate to the customizer.
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* @param node delegate Node.
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* @return new ExternalReferenceNode.
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ExternalReferenceDataNode createExternalReferenceNode(Node original){
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return panel.createExternalReferenceNode(original);
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* Generate a unique prefix value for the document containing the
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* customized component. The selected node is provided, which permits
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* customizing the prefix based on the model represented by the node.
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* @param prefix the desired prefix for the namespace prefix;
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* if null, a default of "ns" will be used.
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* @param dobj DataObject for which to find unique prefix.
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* @return unique prefix value (e.g. "ns1"); must not be null.
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String generatePrefix(String prefix, DataObject dobj){
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String prefixStr = prefix == null ? PREFIX_PREFIX : prefix;
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String existPrefix = (String)prefixMap.get(dobj);
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if(existPrefix != null)
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String generated = prefixStr + counter++;
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prefixMap.put(dobj, generated);
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* Return the document type that this decorator wants to show in the
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* @return the desired document type.
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String getDocumentType(){