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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);
}
}