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110 lines
2.6 KiB
110 lines
2.6 KiB
/*
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* Copyright (c) 2005, 2013, Oracle and/or its affiliates. All rights reserved.
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* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*/
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package javax.xml.bind.annotation;
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import org.w3c.dom.Document;
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import org.w3c.dom.DocumentFragment;
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import org.w3c.dom.Element;
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import org.w3c.dom.Node;
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import javax.xml.bind.ValidationEventHandler;
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import javax.xml.parsers.DocumentBuilder;
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import javax.xml.transform.Source;
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import javax.xml.transform.dom.DOMResult;
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import javax.xml.transform.dom.DOMSource;
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/**
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* {@link DomHandler} implementation for W3C DOM (<code>org.w3c.dom</code> package.)
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*
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* @author Kohsuke Kawaguchi
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* @since JAXB2.0
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*/
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public class W3CDomHandler implements DomHandler<Element,DOMResult> {
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private DocumentBuilder builder;
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/**
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* Default constructor.
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*
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* It is up to a JAXB provider to decide which DOM implementation
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* to use or how that is configured.
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*/
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public W3CDomHandler() {
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this.builder = null;
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}
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/**
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* Constructor that allows applications to specify which DOM implementation
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* to be used.
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*
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* @param builder
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* must not be null. JAXB uses this {@link DocumentBuilder} to create
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* a new element.
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*/
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public W3CDomHandler(DocumentBuilder builder) {
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if(builder==null)
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throw new IllegalArgumentException();
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this.builder = builder;
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}
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public DocumentBuilder getBuilder() {
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return builder;
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}
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public void setBuilder(DocumentBuilder builder) {
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this.builder = builder;
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}
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public DOMResult createUnmarshaller(ValidationEventHandler errorHandler) {
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if(builder==null)
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return new DOMResult();
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else
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return new DOMResult(builder.newDocument());
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}
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public Element getElement(DOMResult r) {
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// JAXP spec is ambiguous about what really happens in this case,
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// so work defensively
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Node n = r.getNode();
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if( n instanceof Document ) {
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return ((Document)n).getDocumentElement();
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}
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if( n instanceof Element )
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return (Element)n;
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if( n instanceof DocumentFragment )
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return (Element)n.getChildNodes().item(0);
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// if the result object contains something strange,
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// it is not a user problem, but it is a JAXB provider's problem.
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// That's why we throw a runtime exception.
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throw new IllegalStateException(n.toString());
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}
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public Source marshal(Element element, ValidationEventHandler errorHandler) {
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return new DOMSource(element);
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}
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}
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