145 lines
4.7 KiB
Java
145 lines
4.7 KiB
Java
/*
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* Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package com.sun.tools.internal.xjc.model;
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import java.util.ArrayList;
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import java.util.Collection;
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import com.sun.tools.internal.xjc.Plugin;
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/**
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* Represents the list of {@link CPluginCustomization}s attached to a JAXB model component.
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*
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* <p>
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* When {@link Plugin}s register the customization namespace URIs through {@link Plugin#getCustomizationURIs()},
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* XJC will treat those URIs just like XJC's own extension "http://java.sun.com/xml/ns/xjc" and make them
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* available as DOM nodes through {@link CPluginCustomization}. A {@link Plugin} can then access
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* this information to change its behavior.
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*
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* @author Kohsuke Kawaguchi
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*/
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public final class CCustomizations extends ArrayList<CPluginCustomization> {
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/**
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* All {@link CCustomizations} used by a {@link Model} form a single linked list
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* so that we can look for unacknowledged customizations later.
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*
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* @see CPluginCustomization#markAsAcknowledged()
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* @see #setParent(Model,CCustomizable)
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*/
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/*package*/ CCustomizations next;
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/**
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* The owner model component that carries these customizations.
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*/
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private CCustomizable owner;
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public CCustomizations() {
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}
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public CCustomizations(Collection<? extends CPluginCustomization> cPluginCustomizations) {
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super(cPluginCustomizations);
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}
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/*package*/ void setParent(Model model,CCustomizable owner) {
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if(this.owner!=null) return;
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// // loop check
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// for( CCustomizations c = model.customizations; c!=null; c=c.next )
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// assert c!=this;
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this.next = model.customizations;
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model.customizations = this;
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assert owner!=null;
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this.owner = owner;
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}
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/**
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* Gets the model component that carries this customization.
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*
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* @return never null.
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*/
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public CCustomizable getOwner() {
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assert owner!=null;
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return owner;
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}
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/**
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* Finds the first {@link CPluginCustomization} that belongs to the given namespace URI.
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* @return null if not found
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*/
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public CPluginCustomization find( String nsUri ) {
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for (CPluginCustomization p : this) {
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if(fixNull(p.element.getNamespaceURI()).equals(nsUri))
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return p;
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}
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return null;
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}
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/**
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* Finds the first {@link CPluginCustomization} that belongs to the given namespace URI and the local name.
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* @return null if not found
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*/
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public CPluginCustomization find( String nsUri, String localName ) {
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for (CPluginCustomization p : this) {
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if(fixNull(p.element.getNamespaceURI()).equals(nsUri)
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&& fixNull(p.element.getLocalName()).equals(localName))
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return p;
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}
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return null;
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}
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private String fixNull(String s) {
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if(s==null) return "";
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else return s;
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}
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/**
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* Convenient singleton instance that represents an empty {@link CCustomizations}.
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*/
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public static final CCustomizations EMPTY = new CCustomizations();
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/**
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* Merges two {@link CCustomizations} objects into one.
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*/
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public static CCustomizations merge(CCustomizations lhs, CCustomizations rhs) {
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if(lhs==null || lhs.isEmpty()) return rhs;
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if(rhs==null || rhs.isEmpty()) return lhs;
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CCustomizations r = new CCustomizations(lhs);
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r.addAll(rhs);
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return r;
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}
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public boolean equals(Object o) {
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return this==o;
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}
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public int hashCode() {
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return System.identityHashCode(this);
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}
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}
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