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The Adobe Experience Manager SDK
There is a newer version: 2024.11.18751.20241128T090041Z-241100
/*
 * ADOBE CONFIDENTIAL
 *
 * Copyright 2009 Adobe Systems Incorporated All Rights Reserved.
 *
 * NOTICE: All information contained herein is, and remains the property of
 * Adobe Systems Incorporated and its suppliers, if any. The intellectual and
 * technical concepts contained herein are proprietary to Adobe Systems
 * Incorporated and its suppliers and may be covered by U.S. and Foreign
 * Patents, patents in process, and are protected by trade secret or copyright
 * law. Dissemination of this information or reproduction of this material
 * is strictly forbidden unless prior written permission is obtained from
 * Adobe Systems Incorporated.
 */
package com.adobe.xfa.dom;

import org.w3c.dom.Attr;
import org.w3c.dom.DOMException;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.TypeInfo;

import com.adobe.xfa.XFA;
import com.adobe.xfa.ut.FindBugsSuppress;
import com.adobe.xfa.ut.StringUtils;

/**
 * Implements the W3C DOM Attr interface, wrapping an XFA DOM attribute.
 * @exclude from published api.
 */
public class AttrImpl extends NodeImpl implements Attr {
	static final int CHECK_DEFAULT = 0x1;
	static final int CHECK_PREFIX = 0x2;

	private final ElementImpl mOwner;
	private final com.adobe.xfa.Attribute mXFAAttr;	
	private QNameImpl mQName;
	private final String mValue;
	private static final QNameImpl gTemporaryQName = new QNameImpl ("");

	public com.adobe.xfa.Attribute getmXFAAttr() {
		return mXFAAttr;
	}	

	AttrImpl (ElementImpl owner, com.adobe.xfa.Attribute xfaAttr) {
		super (owner);
		mOwner = owner;
		mXFAAttr = xfaAttr;
		mValue = mXFAAttr.getAttrValue();
//		debugInit ("Attribute", xfaAttr.getQName());
//		debugNewChild (owner);
	}

	public String getLocalName() {
		populate();
//		debugReturn ("getLocalName", mQName.getLocalName());
		return mQName.getLocalName();
	}

	public String getName() {
		populate();
//		debugReturn ("getName", mQName.getQName());
		return mQName.getQName();
	}

	public String getNamespaceURI() {
		populate();
//		debugReturn ("getNamespaceURI", mQName.getNamespace());
		return mQName.getNamespace();
	}

	public String getPrefix() {
		populate();
//		debugReturn ("getPrefix", mQName.getPrefix());
		return mQName.getPrefix();
	}

	public Element getOwnerElement() {
		return mOwner;
	}

	public TypeInfo getSchemaTypeInfo() {
		return null;
	}

	public boolean getSpecified() {
		return true;
	}

	public String getValue() {
//		debugReturn ("getValue", mValue);
		return mValue;
	}

	@FindBugsSuppress(code="ES")
	public boolean isEqualNode(Node other) {
		if (this == other) {
			return true;
		}
		if (! (other instanceof AttrImpl)) {
			return false;
		}

		AttrImpl otherAttr = (AttrImpl) other;
		if ((mQName.getLocalName() != otherAttr.mQName.getLocalName())
		 || (mQName.getNamespace() != otherAttr.mQName.getNamespace())) {
			return false;
		}
		return StringUtils.equalsWithNull (mValue, otherAttr.mValue);
	}

	public boolean isId() {
		return mOwner.getXFAElement().getModel().getDocument().isId(
				mOwner.getNamespaceURI(), 
				mOwner.getLocalName(),
				mQName.getNamespace() == null ? "" : mQName.getNamespace(), 
				mQName.getLocalName());
	}

	public boolean isSameNode(Node other) {
		if (! (other instanceof AttrImpl)) {
			return false;
		}
		AttrImpl otherAttr = (AttrImpl) other;
		return mXFAAttr == otherAttr.mXFAAttr;
	}

	public void setValue(String value) throws DOMException {
		throw new DOMException (DOMException.NO_MODIFICATION_ALLOWED_ERR, "");
	}

	public String getNodeName () {
		return getName();
	}

	public short getNodeType() {
		return ATTRIBUTE_NODE;
	}

	public String getNodeValue() throws DOMException {
//		debugReturn ("getNodeValue", mValue);
		return mValue;
	}

	final boolean isNamespaceAttr (int checkType) {
		String prefix = mXFAAttr.getPrefix();
		if ((checkType & CHECK_PREFIX) != 0) {
			if (prefix == XFA.XMLNS) {
				return true;
			}
		}
		if ((checkType & CHECK_DEFAULT) != 0) {
			if (StringUtils.isEmpty (prefix) && (mXFAAttr.getName() == XFA.XMLNS)) {
				return true;
			}
		}
		return false;
	}

	final boolean isPopulated () {
		return mQName != null;
	}

	final void populate () {
		if (mQName == null) {
			doPopulate();
		}
	}

/*
 * Populates the attribute object's fields.
 *
 * An attribute object is populated on first access to its contents.
 * This is not for performance or resource usage reasons.  Because the
 * XFA DOM does not store namespace URIs for its attribute objects (the
 * appropriate method always returns null), the act of population may
 * need to look the URI.  Looking up the URI is a parent element
 * operation that requires all namespace-related attributes (xmlns)
 * already be populated (an operation that doesn't require namespace
 * lookup).  So, the element populates its attributes in two passes.
 * Namespace-related attributes are populated as the attribute objects
 * are created.  Non-namespace attributes are populated (subsequently)
 * on demand.
 */
	private void doPopulate () {
		assert (mQName == null);
		mQName = gTemporaryQName;
		try {
			String localName = mXFAAttr.getLocalName();
			String prefix = mXFAAttr.getPrefix();
			String namespaceURI = "";
			if ((prefix != QNameImpl.XMLNS) && (localName != QNameImpl.XMLNS)) {
				namespaceURI = mOwner.lookupNamespaceURI (StringUtils.isEmpty (prefix) ? null : prefix);
			}
			mQName = new QNameImpl (namespaceURI, prefix, localName);
		} catch (Exception e) {
			mQName = null;
		}
	}
}