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A complete, Java-based solution for accessing, manipulating,
and outputting XML data
/*--
Copyright (C) 2012 Jason Hunter & Brett McLaughlin.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions, and the disclaimer that follows
these conditions in the documentation and/or other materials
provided with the distribution.
3. The name "JDOM" must not be used to endorse or promote products
derived from this software without prior written permission. For
written permission, please contact .
4. Products derived from this software may not be called "JDOM", nor
may "JDOM" appear in their name, without prior written permission
from the JDOM Project Management .
In addition, we request (but do not require) that you include in the
end-user documentation provided with the redistribution and/or in the
software itself an acknowledgement equivalent to the following:
"This product includes software developed by the
JDOM Project (http://www.jdom.org/)."
Alternatively, the acknowledgment may be graphical using the logos
available at http://www.jdom.org/images/logos.
THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE JDOM AUTHORS OR THE PROJECT
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.
This software consists of voluntary contributions made by many
individuals on behalf of the JDOM Project and was originally
created by Jason Hunter and
Brett McLaughlin . For more information
on the JDOM Project, please see mapped =
new IdentityHashMap();
private final HashMap idmap = new HashMap();
public JDocument(final org.jdom2.Document shadow) {
super(null, null, shadow, Node.DOCUMENT_NODE, new Namespace[]{
Namespace.NO_NAMESPACE,
Namespace.XML_NAMESPACE
});
if (shadow == null) {
root = null;
doctype = null;
} else {
final JNamespaceAware[] kids = checkKids();
JDocType dt = null;
JElement je = null;
for (final JNamespaceAware n : kids) {
if (n.getNodeType() == Node.DOCUMENT_TYPE_NODE) {
dt = (JDocType)n;
}
if (n.getNodeType() == Node.ELEMENT_NODE) {
je = (JElement)n;
}
}
root = je;
doctype = dt;
}
}
public void scanAll() {
if (allscanned) {
return;
}
if (shadow == null) {
allscanned = true;
return;
}
allscanned = true;
final Iterator it = shadow.getDescendants(Filters.element());
while (it.hasNext()) {
find(it.next());
}
}
public JElement find(final org.jdom2.Element emt) {
final JNamespaceAware me = mapped.get(emt);
if (me != null) {
return (JElement)me;
}
final org.jdom2.Element jp = emt.getParentElement();
if (jp == null) {
// root level element (or detached).
final org.jdom2.Document jd = emt.getDocument();
// both may be null....
if (jd != shadow) {
// we are from different documents...
throw new DOMException(DOMException.WRONG_DOCUMENT_ERR,
"Element is not part of our document");
}
// OK, we are a root level Element... let's map ourselves.
final NamespaceStack ns = new NamespaceStack(scope);
ns.push(emt);
final ArrayList added = new ArrayList();
for (final Namespace ans : ns.addedForward()) {
added.add(ans);
}
final JElement je = new JElement(this, this, emt, ns.getScope(),
added.toArray(new Namespace[added.size()]));
mapped.put(emt, je);
checkID(je);
return je;
}
final JElement pnt = find(jp);
final NamespaceStack ns = new NamespaceStack(pnt.scope);
ns.push(emt);
final ArrayList added = new ArrayList();
for (final Namespace ans : ns.addedForward()) {
added.add(ans);
}
final JElement ret = new JElement(this, pnt, emt, ns.getScope(),
added.toArray(new Namespace[added.size()]));
mapped.put(emt, ret);
checkID(ret);
return ret;
}
public JAttribute find(final org.jdom2.Attribute att) {
final JNamespaceAware me = mapped.get(att);
if (me != null) {
return (JAttribute)me;
}
final org.jdom2.Element jp = att.getParent();
final JParent pnt = jp == null ? this : find(jp);
final NamespaceStack ns = jp == null ?
new NamespaceStack() : new NamespaceStack(find(jp).scope);
ns.push(att);
final JAttribute ret = new JAttribute(this, pnt, att, ns.getScope());
mapped.put(att, ret);
return ret;
}
private JContent findContent(final org.jdom2.Content content) {
final JNamespaceAware me = mapped.get(content);
if (me != null) {
return (JContent)me;
}
final org.jdom2.Element jp = content.getParentElement();
final JParent pnt = jp == null ? this : find(jp);
JContent ret = null;
switch (content.getCType()) {
case CDATA:
ret = new JCDATA(this, pnt, content, pnt.scope);
break;
case Comment:
ret = new JComment(this, pnt, content, pnt.scope);
break;
case DocType:
ret = new JDocType(this, pnt, content, pnt.scope);
break;
case EntityRef:
ret = new JEntityRef(this, pnt, content, pnt.scope);
break;
case ProcessingInstruction:
ret = new JProcessingInstruction(this, pnt, content, pnt.scope);
break;
case Text:
ret = new JText(this, pnt, content, pnt.scope);
break;
default:
throw new IllegalStateException(
"Other types should have their own methods.");
}
mapped.put(content, ret);
return ret;
}
public JCDATA find(final CDATA content) {
return (JCDATA)findContent(content);
}
public JDocType find(final DocType content) {
return (JDocType)findContent(content);
}
public JProcessingInstruction find(
final org.jdom2.ProcessingInstruction content) {
return (JProcessingInstruction)findContent(content);
}
public JEntityRef find(final EntityRef content) {
return (JEntityRef)findContent(content);
}
public JComment find(final org.jdom2.Comment content) {
return (JComment)findContent(content);
}
public JText find(final org.jdom2.Text content) {
return (JText)findContent(content);
}
private void checkID(final JElement je) {
final org.jdom2.Element emt = (org.jdom2.Element)(je.shadow);
if (emt.hasAttributes()) {
for (final Attribute a : emt.getAttributes()) {
if (a.getAttributeType() == AttributeType.ID) {
if (idmap.put(a.getValue(), je) != null) {
throw new DOMException(DOMException.INVALID_STATE_ERR,
"Multiple elements with id " + a.getValue());
}
}
}
}
}
@Override
public DocumentType getDoctype() {
return doctype;
}
@Override
public Element getDocumentElement() {
return root;
}
@Override
public NodeList getElementsByTagName(final String tagname) {
return getElementsByTagName(shadow, tagname);
}
@Override
public NodeList getElementsByTagNameNS(final String namespaceURI, final String localName) {
return getElementsByTagNameNS(shadow, namespaceURI, localName);
}
NodeList getElementsByTagName(final Parent xshadow, final String tagname) {
if (tagname == null) {
return EMPTYLIST;
}
final ArrayList enodes = new ArrayList();
final boolean alltags = "*".equals(tagname);
final Iterator it =
xshadow.getDescendants(Filters.element());
while (it.hasNext()) {
final org.jdom2.Element e = it.next();
if (alltags || tagname.equals(e.getQualifiedName())) {
enodes.add(find(e));
}
}
return new JNodeList(enodes);
}
NodeList getElementsByTagNameNS(final Parent xshadow, final String namespaceURI, final String localName) {
if (localName == null) {
return EMPTYLIST;
}
if (namespaceURI == null) {
return EMPTYLIST;
}
final boolean alluri = "*".equals(namespaceURI);
final boolean allname = "*".equals(localName);
final ArrayList enodes = new ArrayList();
final Iterator it =
xshadow.getDescendants(Filters.element());
while (it.hasNext()) {
final org.jdom2.Element e = it.next();
if ((allname || localName.equals(e.getName())) &&
(alluri || namespaceURI.equals(e.getNamespaceURI()))) {
enodes.add(find(e));
}
}
return new JNodeList(enodes);
}
@Override
public Element getElementById(final String elementId) {
scanAll();
return idmap.get(elementId);
}
@Override
public String getDocumentURI() {
return shadow == null ? null : ((org.jdom2.Document)shadow).getBaseURI();
}
@Override
public String getNodeName() {
return "#document";
}
@Override
public String getBaseURI() {
return shadow == null ? null : ((org.jdom2.Document)shadow).getBaseURI();
}
/* *********************************************************
* Everything after this point is 'dumb' code... (or error code)
* ********************************************************* */
@Override
public String getNodeValue() throws DOMException {
return null;
}
@Override
public NamedNodeMap getAttributes() {
return null;
}
@Override
public String getNamespaceURI() {
return null;
}
@Override
public String getPrefix() {
return null;
}
@Override
public String getLocalName() {
return null;
}
@Override
public boolean hasAttributes() {
return false;
}
@Override
public String getTextContent() throws DOMException {
return null;
}
@Override
public String getXmlVersion() {
return "1.0";
}
@Override
public String getInputEncoding() {
return null;
}
@Override
public String getXmlEncoding() {
return null;
}
@Override
public boolean getXmlStandalone() {
return false;
}
@Override
public final DOMImplementation getImplementation() {
return implementation;
}
@Override
public final DOMConfiguration getDomConfig() {
return configuration;
}
@Override
public final boolean getStrictErrorChecking() {
return false;
}
@Override
public final void setStrictErrorChecking(final boolean strictErrorChecking) {
// nothing
}
@Override
public final void setDocumentURI(final String documentURI) {
// Do nothing
}
@Override
public final void normalizeDocument() {
// do nothing
}
@Override
public final Node renameNode(final Node n, final String namespaceURI, final String qualifiedName)
throws DOMException {
throw new DOMException(DOMException.NO_MODIFICATION_ALLOWED_ERR,
"Cannot modify JDOM Wrapper DOM objects.");
}
@Override
public final void setXmlStandalone(final boolean xmlStandalone) throws DOMException {
throw new DOMException(DOMException.NO_MODIFICATION_ALLOWED_ERR,
"Cannot modify JDOM Wrapper DOM objects.");
}
@Override
public final void setXmlVersion(final String xmlVersion) throws DOMException {
throw new DOMException(DOMException.NO_MODIFICATION_ALLOWED_ERR,
"Cannot modify JDOM Wrapper DOM objects.");
}
@Override
public final Node adoptNode(final Node source) throws DOMException {
throw new DOMException(DOMException.NO_MODIFICATION_ALLOWED_ERR,
"Cannot modify JDOM Wrapper DOM objects.");
}
@Override
public final Element createElement(final String tagName) throws DOMException {
throw new DOMException(DOMException.NO_MODIFICATION_ALLOWED_ERR,
"Cannot modify JDOM Wrapper DOM objects.");
}
@Override
public final DocumentFragment createDocumentFragment() {
throw new DOMException(DOMException.NO_MODIFICATION_ALLOWED_ERR,
"Cannot modify JDOM Wrapper DOM objects.");
}
@Override
public final Text createTextNode(final String data) {
throw new DOMException(DOMException.NO_MODIFICATION_ALLOWED_ERR,
"Cannot modify JDOM Wrapper DOM objects.");
}
@Override
public final Comment createComment(final String data) {
throw new DOMException(DOMException.NO_MODIFICATION_ALLOWED_ERR,
"Cannot modify JDOM Wrapper DOM objects.");
}
@Override
public final CDATASection createCDATASection(final String data) throws DOMException {
throw new DOMException(DOMException.NO_MODIFICATION_ALLOWED_ERR,
"Cannot modify JDOM Wrapper DOM objects.");
}
@Override
public final ProcessingInstruction createProcessingInstruction(final String target,
final String data) throws DOMException {
throw new DOMException(DOMException.NO_MODIFICATION_ALLOWED_ERR,
"Cannot modify JDOM Wrapper DOM objects.");
}
@Override
public final Attr createAttribute(final String name) throws DOMException {
throw new DOMException(DOMException.NO_MODIFICATION_ALLOWED_ERR,
"Cannot modify JDOM Wrapper DOM objects.");
}
@Override
public final EntityReference createEntityReference(final String name)
throws DOMException {
throw new DOMException(DOMException.NO_MODIFICATION_ALLOWED_ERR,
"Cannot modify JDOM Wrapper DOM objects.");
}
@Override
public final Node importNode(final Node importedNode, final boolean deep) throws DOMException {
throw new DOMException(DOMException.NO_MODIFICATION_ALLOWED_ERR,
"Cannot modify JDOM Wrapper DOM objects.");
}
@Override
public final Element createElementNS(final String namespaceURI, final String qualifiedName)
throws DOMException {
throw new DOMException(DOMException.NO_MODIFICATION_ALLOWED_ERR,
"Cannot modify JDOM Wrapper DOM objects.");
}
@Override
public final Attr createAttributeNS(final String namespaceURI, final String qualifiedName)
throws DOMException {
throw new DOMException(DOMException.NO_MODIFICATION_ALLOWED_ERR,
"Cannot modify JDOM Wrapper DOM objects.");
}
}
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