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/*
DOCTYPE node:
<!ELEMENT address (buildingnumber,street,city,state,zip)>
<!ATTLIST address xmlns CDATA #IMPLIED>
<!ELEMENT buildingnumber (#PCDATA)>
<!ELEMENT street (#PCDATA)>
<!ELEMENT city (#PCDATA)>
<!ELEMENT state (#PCDATA)>
<!ELEMENT zip (#PCDATA)>
Document body contents are:
Node: address
Node Type: Element
Child Nodes of address are:
Node: buildingnumber
Node Type: Element
Child Nodes of buildingnumber are:
Node: #text
Node Type: Text
Content is: 29
Node: street
Node Type: Element
Child Nodes of street are:
Node: #text
Node Type: Text
Content is: South Street
Node: city
Node Type: Element
Child Nodes of city are:
Node: #text
Node Type: Text
Content is: Vancouver
Node: state
Node Type: Element
Child Nodes of state are:
Node: #text
Node Type: Text
Content is: BC
Node: zip
Node Type: Element
Child Nodes of zip are:
Node: #text
Node Type: Text
Content is: V6V 4U7
*/
import static org.w3c.dom.Node.ATTRIBUTE_NODE;
import static org.w3c.dom.Node.CDATA_SECTION_NODE;
import static org.w3c.dom.Node.COMMENT_NODE;
import static org.w3c.dom.Node.DOCUMENT_TYPE_NODE;
import static org.w3c.dom.Node.ELEMENT_NODE;
import static org.w3c.dom.Node.ENTITY_NODE;
import static org.w3c.dom.Node.ENTITY_REFERENCE_NODE;
import static org.w3c.dom.Node.NOTATION_NODE;
import static org.w3c.dom.Node.PROCESSING_INSTRUCTION_NODE;
import static org.w3c.dom.Node.TEXT_NODE;
import java.io.IOException;
import java.io.StringReader;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.w3c.dom.Document;
import org.w3c.dom.DocumentType;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.w3c.dom.Text;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
public class MainClass {
public static void main(String args[]) {
DocumentBuilderFactory builderFactory = DocumentBuilderFactory.newInstance();
builderFactory.setNamespaceAware(true); // Set namespace aware
builderFactory.setValidating(true); // and validating parser feaures
builderFactory.setIgnoringElementContentWhitespace(true);
DocumentBuilder builder = null;
try {
builder = builderFactory.newDocumentBuilder(); // Create the parser
} catch(ParserConfigurationException e) {
e.printStackTrace();
}
Document xmlDoc = null;
try {
xmlDoc = builder.parse(new InputSource(new StringReader(xmlString)));
} catch(SAXException e) {
e.printStackTrace();
} catch(IOException e) {
e.printStackTrace();
}
DocumentType doctype = xmlDoc.getDoctype();
if(doctype == null) {
System.out.println("DOCTYPE is null");
} else {
System.out.println("DOCTYPE node:\n" + doctype.getInternalSubset());
}
System.out.println("\nDocument body contents are:");
listNodes(xmlDoc.getDocumentElement(),""); // Root element & children
}
static void listNodes(Node node, String indent) {
String nodeName = node.getNodeName();
System.out.println(indent+" Node: " + nodeName);
short type = node.getNodeType();
System.out.println(indent+" Node Type: " + nodeType(type));
if(type == TEXT_NODE){
System.out.println(indent+" Content is: "+((Text)node).getWholeText());
}
NodeList list = node.getChildNodes();
if(list.getLength() > 0) {
System.out.println(indent+" Child Nodes of "+nodeName+" are:");
for(int i = 0 ; i<list.getLength() ; i++) {
listNodes(list.item(i),indent+" ");
}
}
}
static String nodeType(short type) {
switch(type) {
case ELEMENT_NODE: return "Element";
case DOCUMENT_TYPE_NODE: return "Document type";
case ENTITY_NODE: return "Entity";
case ENTITY_REFERENCE_NODE: return "Entity reference";
case NOTATION_NODE: return "Notation";
case TEXT_NODE: return "Text";
case COMMENT_NODE: return "Comment";
case CDATA_SECTION_NODE: return "CDATA Section";
case ATTRIBUTE_NODE: return "Attribute";
case PROCESSING_INSTRUCTION_NODE: return "Attribute";
}
return "Unidentified";
}
static String xmlString ="<?xml version=\"1.0\"?>" +
" <!DOCTYPE address" +
" [" +
" <!ELEMENT address (buildingnumber, street, city, state, zip)>" +
" <!ATTLIST address xmlns CDATA #IMPLIED>" +
" <!ELEMENT buildingnumber (#PCDATA)>" +
" <!ELEMENT street (#PCDATA)>" +
" <!ELEMENT city (#PCDATA)>" +
" <!ELEMENT state (#PCDATA)>" +
" <!ELEMENT zip (#PCDATA)>" +
" ]>" +
"" +
" <address>" +
" <buildingnumber> 29 </buildingnumber>" +
" <street> South Street</street>" +
" <city>Vancouver</city>" +
"" +
" <state>BC</state>" +
" <zip>V6V 4U7</zip>" +
" </address>";
}
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