* DocumentType is an Extended DOM feature, used in XML documents but * not in HTML. *
* Note that Entities and Notations are no longer children of the * DocumentType, but are parentless nodes hung only in their * appropriate NamedNodeMaps. *
* This area is UNDERSPECIFIED IN REC-DOM-Level-1-19981001
* Most notably, absolutely no provision was made for storing
* and using Element and Attribute information. Nor was the linkage
* between Entities and Entity References nailed down solidly.
*
* @xerces.internal
*
* @author Arnaud Le Hors, IBM
* @author Joe Kesselman, IBM
* @author Andy Clark, IBM
* @since PR-DOM-Level-1-19980818.
*/
public class DocumentTypeImpl
extends ParentNode
implements DocumentType {
//
// Constants
//
/** Serialization version. */
static final long serialVersionUID = 7751299192316526485L;
//
// Data
//
/** Document type name. */
protected String name;
/** Entities. */
protected NamedNodeMapImpl entities;
/** Notations. */
protected NamedNodeMapImpl notations;
// NON-DOM
/** Elements. */
protected NamedNodeMapImpl elements;
// DOM2: support public ID.
protected String publicID;
// DOM2: support system ID.
protected String systemID;
// DOM2: support internal subset.
protected String internalSubset;
/** The following are required for compareDocumentPosition
*/
// Doctype number. Doc types which have no owner may be assigned
// a number, on demand, for ordering purposes for compareDocumentPosition
private int doctypeNumber=0;
//
// Constructors
//
private Hashtable userData = null;
/** Factory method for creating a document type node. */
public DocumentTypeImpl(CoreDocumentImpl ownerDocument, String name) {
super(ownerDocument);
this.name = name;
// DOM
entities = new NamedNodeMapImpl(this);
notations = new NamedNodeMapImpl(this);
// NON-DOM
elements = new NamedNodeMapImpl(this);
} //
*
* Return the public identifier of this Document type.
* @since WD-DOM-Level-2-19990923
*/
public String getPublicId() {
if (needsSyncData()) {
synchronizeData();
}
return publicID;
}
/**
* Introduced in DOM Level 2.
*
* Return the system identifier of this Document type.
* @since WD-DOM-Level-2-19990923
*/
public String getSystemId() {
if (needsSyncData()) {
synchronizeData();
}
return systemID;
}
/**
* NON-DOM.
*
* Set the internalSubset given as a string.
*/
public void setInternalSubset(String internalSubset) {
if (needsSyncData()) {
synchronizeData();
}
this.internalSubset = internalSubset;
}
/**
* Introduced in DOM Level 2.
*
* Return the internalSubset given as a string.
* @since WD-DOM-Level-2-19990923
*/
public String getInternalSubset() {
if (needsSyncData()) {
synchronizeData();
}
return internalSubset;
}
//
// Node methods
//
/**
* A short integer indicating what type of node this is. The named
* constants for this value are defined in the org.w3c.dom.Node interface.
*/
public short getNodeType() {
return Node.DOCUMENT_TYPE_NODE;
}
/**
* Returns the document type name
*/
public String getNodeName() {
if (needsSyncData()) {
synchronizeData();
}
return name;
}
/** Clones the node. */
public Node cloneNode(boolean deep) {
DocumentTypeImpl newnode = (DocumentTypeImpl)super.cloneNode(deep);
// NamedNodeMaps must be cloned explicitly, to avoid sharing them.
newnode.entities = entities.cloneMap(newnode);
newnode.notations = notations.cloneMap(newnode);
newnode.elements = elements.cloneMap(newnode);
return newnode;
} // cloneNode(boolean):Node
/*
* Get Node text content
* @since DOM Level 3
*/
public String getTextContent() throws DOMException {
return null;
}
/*
* Set Node text content
* @since DOM Level 3
*/
public void setTextContent(String textContent)
throws DOMException {
// no-op
}
/**
* DOM Level 3 WD- Experimental.
* Override inherited behavior from ParentNodeImpl to support deep equal.
*/
public boolean isEqualNode(Node arg) {
if (!super.isEqualNode(arg)) {
return false;
}
if (needsSyncData()) {
synchronizeData();
}
DocumentTypeImpl argDocType = (DocumentTypeImpl) arg;
//test if the following string attributes are equal: publicId,
//systemId, internalSubset.
if ((getPublicId() == null && argDocType.getPublicId() != null)
|| (getPublicId() != null && argDocType.getPublicId() == null)
|| (getSystemId() == null && argDocType.getSystemId() != null)
|| (getSystemId() != null && argDocType.getSystemId() == null)
|| (getInternalSubset() == null
&& argDocType.getInternalSubset() != null)
|| (getInternalSubset() != null
&& argDocType.getInternalSubset() == null)) {
return false;
}
if (getPublicId() != null) {
if (!getPublicId().equals(argDocType.getPublicId())) {
return false;
}
}
if (getSystemId() != null) {
if (!getSystemId().equals(argDocType.getSystemId())) {
return false;
}
}
if (getInternalSubset() != null) {
if (!getInternalSubset().equals(argDocType.getInternalSubset())) {
return false;
}
}
//test if NamedNodeMaps entities and notations are equal
NamedNodeMapImpl argEntities = argDocType.entities;
if ((entities == null && argEntities != null)
|| (entities != null && argEntities == null))
return false;
if (entities != null && argEntities != null) {
if (entities.getLength() != argEntities.getLength())
return false;
for (int index = 0; entities.item(index) != null; index++) {
Node entNode1 = entities.item(index);
Node entNode2 =
argEntities.getNamedItem(entNode1.getNodeName());
if (!((NodeImpl) entNode1).isEqualNode((NodeImpl) entNode2))
return false;
}
}
NamedNodeMapImpl argNotations = argDocType.notations;
if ((notations == null && argNotations != null)
|| (notations != null && argNotations == null))
return false;
if (notations != null && argNotations != null) {
if (notations.getLength() != argNotations.getLength())
return false;
for (int index = 0; notations.item(index) != null; index++) {
Node noteNode1 = notations.item(index);
Node noteNode2 =
argNotations.getNamedItem(noteNode1.getNodeName());
if (!((NodeImpl) noteNode1).isEqualNode((NodeImpl) noteNode2))
return false;
}
}
return true;
} //end isEqualNode
/**
* NON-DOM
* set the ownerDocument of this node and its children
*/
void setOwnerDocument(CoreDocumentImpl doc) {
super.setOwnerDocument(doc);
entities.setOwnerDocument(doc);
notations.setOwnerDocument(doc);
elements.setOwnerDocument(doc);
}
/** NON-DOM
Get the number associated with this doctype.
*/
protected int getNodeNumber() {
// If the doctype has a document owner, get the node number
// relative to the owner doc
if (getOwnerDocument()!=null)
return super.getNodeNumber();
// The doctype is disconnected and not associated with any document.
// Assign the doctype a number relative to the implementation.
if (doctypeNumber==0) {
CoreDOMImplementationImpl cd = (CoreDOMImplementationImpl)CoreDOMImplementationImpl.getDOMImplementation();
doctypeNumber = cd.assignDocTypeNumber();
}
return doctypeNumber;
}
//
// DocumentType methods
//
/**
* Name of this document type. If we loaded from a DTD, this should
* be the name immediately following the DOCTYPE keyword.
*/
public String getName() {
if (needsSyncData()) {
synchronizeData();
}
return name;
} // getName():String
/**
* Access the collection of general Entities, both external and
* internal, defined in the DTD. For example, in:
*
*
* The Entities map includes foo and bar, but not baz. It is promised that
* only Nodes which are Entities will exist in this NamedNodeMap.
*
* For HTML, this will always be null.
*
* Note that "built in" entities such as & and < should be
* converted to their actual characters before being placed in the DOM's
* contained text, and should be converted back when the DOM is rendered
* as XML or HTML, and hence DO NOT appear here.
*/
public NamedNodeMap getEntities() {
if (needsSyncChildren()) {
synchronizeChildren();
}
return entities;
}
/**
* Access the collection of Notations defined in the DTD. A
* notation declares, by name, the format of an XML unparsed entity
* or is used to formally declare a Processing Instruction target.
*/
public NamedNodeMap getNotations() {
if (needsSyncChildren()) {
synchronizeChildren();
}
return notations;
}
//
// Public methods
//
/**
* NON-DOM: Subclassed to flip the entities' and notations' readonly switch
* as well.
* @see NodeImpl#setReadOnly
*/
public void setReadOnly(boolean readOnly, boolean deep) {
if (needsSyncChildren()) {
synchronizeChildren();
}
super.setReadOnly(readOnly, deep);
// set read-only property
elements.setReadOnly(readOnly, true);
entities.setReadOnly(readOnly, true);
notations.setReadOnly(readOnly, true);
} // setReadOnly(boolean,boolean)
/**
* NON-DOM: Access the collection of ElementDefinitions.
* @see ElementDefinitionImpl
*/
public NamedNodeMap getElements() {
if (needsSyncChildren()) {
synchronizeChildren();
}
return elements;
}
public Object setUserData(String key,
Object data, UserDataHandler handler) {
if(userData == null)
userData = new Hashtable();
if (data == null) {
if (userData != null) {
Object o = userData.remove(key);
if (o != null) {
UserDataRecord r = (UserDataRecord) o;
return r.fData;
}
}
return null;
}
else {
Object o = userData.put(key, new UserDataRecord(data, handler));
if (o != null) {
UserDataRecord r = (UserDataRecord) o;
return r.fData;
}
}
return null;
}
public Object getUserData(String key) {
if (userData == null) {
return null;
}
Object o = userData.get(key);
if (o != null) {
UserDataRecord r = (UserDataRecord) o;
return r.fData;
}
return null;
}
protected Hashtable getUserDataRecord(){
return userData;
}
} // class DocumentTypeImpl
* <!doctype example SYSTEM "ex.dtd" [
* <!ENTITY foo "foo">
* <!ENTITY bar "bar">
* <!ENTITY % baz "baz">
* ]>
*
*