bzdgn · December 9, 2015 21:22
diff --git a/AdvancedDocumentBuilderFactoryDemo.java b/AdvancedDocumentBuilderFactoryDemo.java
 package com.levo.abstractfactory.example;

 import java.io.ByteArrayInputStream;
 import java.io.IOException;

 import javax.xml.parsers.DocumentBuilder;
 import javax.xml.parsers.DocumentBuilderFactory;
 import javax.xml.parsers.ParserConfigurationException;

 import org.w3c.dom.Document;
 import org.w3c.dom.Element;
 import org.w3c.dom.NodeList;
 import org.xml.sax.SAXException;

 public class AdvancedDocumentBuilderFactoryDemo {
 	
 	private static final int INDENT_SIZE = 3;

 	public static void main(String[] args) throws ParserConfigurationException, SAXException, IOException {
 		
 //		String xml = "<document><body><guitar>Ibanez</guitar></body></document>";
 		String xml = "<document><body><guitar>Ibanez</guitar><guitar>Gibson</guitar></body></document>";
 		
 		ByteArrayInputStream bais = new ByteArrayInputStream(xml.getBytes());
 		
 		// Demonstrate how to traverse ByteArrayInputStream 
 		int length = bais.available();
 		for(int i = 0; i < length; i++) {
 			System.out.printf("%c", bais.read());
 		}
 		bais.reset();
 		
 		DocumentBuilderFactory	abstractFactory	= DocumentBuilderFactory.newInstance();
 		DocumentBuilder			factory			= abstractFactory.newDocumentBuilder();
 		Document				doc				= factory.parse(bais);
 		
 		doc.getDocumentElement().normalize();
 		
 		System.out.println("Root element	: " + doc.getDocumentElement().getNodeName());
 		
 		System.out.println(abstractFactory.getClass());
 		System.out.println(factory.getClass());
 		
 //		printDocumentTree(doc);
 		printDocumentTreeWithIndent(doc);
 	}
 	
 	private static void printDocumentTree(Document doc) {
 		Element root = doc.getDocumentElement();
 		System.out.println(root.getNodeName() + " : " + root.getNodeValue());
 		
 		NodeList children = root.getChildNodes();
 		if(children != null) {
 			printDocumentNodeList(root.getChildNodes());
 		}

 	}
 	
 	private static void printDocumentNodeList(NodeList children) {
 		for(int i = 0; i < children.getLength(); i++) {
 			System.out.println(children.item(i).getNodeName() + " : " + children.item(i).getNodeValue());
 			if(children.item(i).hasChildNodes()) {
 				printDocumentNodeList(children.item(i).getChildNodes());
 			}
 		}
 	}
 	
 	private static void printDocumentTreeWithIndent(Document doc) {
 		Element root = doc.getDocumentElement();
 		System.out.println("<" + root.getNodeName() + " : " + root.getNodeValue() + ">");
 		
 		NodeList children = root.getChildNodes();
 		if(children != null) {
 			printDocumentNodeListWithIndent(root.getChildNodes(), INDENT_SIZE);
 		}
 	}
 	
 	private static void printDocumentNodeListWithIndent(NodeList children, int height) {
 		for(int i = 0; i < children.getLength(); i++) {
 			printIndent(height);
 			System.out.println("<" + children.item(i).getNodeName() + " : " + children.item(i).getNodeValue() + ">");
 			if(children.item(i).hasChildNodes()) {
 				height += INDENT_SIZE;
 				printDocumentNodeListWithIndent(children.item(i).getChildNodes(), height);
 			}
 			
 			height -= INDENT_SIZE;
 		}
 	}
 	
 	private static void printIndent(int indent) {
 		for(int i = 0; i < indent; i++) {
 			System.out.print(".");
 		}
 	}

 }
	package com.levo.abstractfactory.example;

	import java.io.ByteArrayInputStream;
	import java.io.IOException;

	import javax.xml.parsers.DocumentBuilder;
	import javax.xml.parsers.DocumentBuilderFactory;
	import javax.xml.parsers.ParserConfigurationException;

	import org.w3c.dom.Document;
	import org.w3c.dom.Element;
	import org.w3c.dom.NodeList;
	import org.xml.sax.SAXException;

	public class AdvancedDocumentBuilderFactoryDemo {

	private static final int INDENT_SIZE = 3;

	public static void main(String[] args) throws ParserConfigurationException, SAXException, IOException {

	// String xml = "<document><body><guitar>Ibanez</guitar></body></document>";
	String xml = "<document><body><guitar>Ibanez</guitar><guitar>Gibson</guitar></body></document>";

	ByteArrayInputStream bais = new ByteArrayInputStream(xml.getBytes());

	// Demonstrate how to traverse ByteArrayInputStream
	int length = bais.available();
	for(int i = 0; i < length; i++) {
	System.out.printf("%c", bais.read());
	}
	bais.reset();

	DocumentBuilderFactory abstractFactory = DocumentBuilderFactory.newInstance();
	DocumentBuilder factory = abstractFactory.newDocumentBuilder();
	Document doc = factory.parse(bais);

	doc.getDocumentElement().normalize();

	System.out.println("Root element : " + doc.getDocumentElement().getNodeName());

	System.out.println(abstractFactory.getClass());
	System.out.println(factory.getClass());

	// printDocumentTree(doc);
	printDocumentTreeWithIndent(doc);
	}

	private static void printDocumentTree(Document doc) {
	Element root = doc.getDocumentElement();
	System.out.println(root.getNodeName() + " : " + root.getNodeValue());

	NodeList children = root.getChildNodes();
	if(children != null) {
	printDocumentNodeList(root.getChildNodes());
	}

	}

	private static void printDocumentNodeList(NodeList children) {
	for(int i = 0; i < children.getLength(); i++) {
	System.out.println(children.item(i).getNodeName() + " : " + children.item(i).getNodeValue());
	if(children.item(i).hasChildNodes()) {
	printDocumentNodeList(children.item(i).getChildNodes());
	}
	}
	}

	private static void printDocumentTreeWithIndent(Document doc) {
	Element root = doc.getDocumentElement();
	System.out.println("<" + root.getNodeName() + " : " + root.getNodeValue() + ">");

	NodeList children = root.getChildNodes();
	if(children != null) {
	printDocumentNodeListWithIndent(root.getChildNodes(), INDENT_SIZE);
	}
	}

	private static void printDocumentNodeListWithIndent(NodeList children, int height) {
	for(int i = 0; i < children.getLength(); i++) {
	printIndent(height);
	System.out.println("<" + children.item(i).getNodeName() + " : " + children.item(i).getNodeValue() + ">");
	if(children.item(i).hasChildNodes()) {
	height += INDENT_SIZE;
	printDocumentNodeListWithIndent(children.item(i).getChildNodes(), height);
	}

	height -= INDENT_SIZE;
	}
	}

	private static void printIndent(int indent) {
	for(int i = 0; i < indent; i++) {
	System.out.print(".");
	}
	}

	}