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/*
 * Copyright (c) 1997, 2022 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0, which is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

package com.sun.tools.xjc.model;

import java.util.ArrayList;
import java.util.Collection;

import com.sun.tools.xjc.Plugin;

/**
 * Represents the list of {@link CPluginCustomization}s attached to a JAXB model component.
 *
 * 

* When {@link Plugin}s register the customization namespace URIs through {@link Plugin#getCustomizationURIs()}, * XJC will treat those URIs just like XJC's own extension "http://java.sun.com/xml/ns/xjc" and make them * available as DOM nodes through {@link CPluginCustomization}. A {@link Plugin} can then access * this information to change its behavior. * * @author Kohsuke Kawaguchi */ public final class CCustomizations extends ArrayList { private static final long serialVersionUID = 7551826676482019240L; /** * All {@link CCustomizations} used by a {@link Model} form a single linked list * so that we can look for unacknowledged customizations later. * * @see CPluginCustomization#markAsAcknowledged() * @see #setParent(Model,CCustomizable) */ /*package*/ CCustomizations next; /** * The owner model component that carries these customizations. */ private CCustomizable owner; public CCustomizations() { } public CCustomizations(Collection cPluginCustomizations) { super(cPluginCustomizations); } /*package*/ void setParent(Model model,CCustomizable owner) { if(this.owner!=null) return; // // loop check // for( CCustomizations c = model.customizations; c!=null; c=c.next ) // assert c!=this; this.next = model.customizations; model.customizations = this; assert owner!=null; this.owner = owner; } /** * Gets the model component that carries this customization. * * @return never null. */ public CCustomizable getOwner() { assert owner!=null; return owner; } /** * Finds the first {@link CPluginCustomization} that belongs to the given namespace URI. * @return null if not found */ public CPluginCustomization find( String nsUri ) { for (CPluginCustomization p : this) { if(fixNull(p.element.getNamespaceURI()).equals(nsUri)) return p; } return null; } /** * Finds the first {@link CPluginCustomization} that belongs to the given namespace URI and the local name. * @return null if not found */ public CPluginCustomization find( String nsUri, String localName ) { for (CPluginCustomization p : this) { if(fixNull(p.element.getNamespaceURI()).equals(nsUri) && fixNull(p.element.getLocalName()).equals(localName)) return p; } return null; } private String fixNull(String s) { if(s==null) return ""; else return s; } /** * Convenient singleton instance that represents an empty {@link CCustomizations}. */ public static final CCustomizations EMPTY = new CCustomizations(); /** * Merges two objects into one. */ public static CCustomizations merge(CCustomizations lhs, CCustomizations rhs) { if(lhs==null || lhs.isEmpty()) return rhs; if(rhs==null || rhs.isEmpty()) return lhs; CCustomizations r = new CCustomizations(lhs); r.addAll(rhs); return r; } @Override public boolean equals(Object o) { return this==o; } @Override public int hashCode() { return System.identityHashCode(this); } }





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