Sax character method cutting elements

It's easy to use SAX to parse a xml document. At the end of this article, I'll give a simple example of SAX parsing XML.
But one point, the character method, you can't count on this method to return entire element valuses. Because SAX reads data in a buffer(2048 byte one time, maybe we can set the length somewhere), and if it reaches the end of buffer, it will stop to read more byte. So it will read half-baked element value is usual. We have to string together until end element is reached. Because parser doesn't do this for us.

 

For example

package com; import java.util.ArrayList; import java.util.HashMap; import java.util.Iterator; import java.util.List; import java.util.Map; import java.util.Set; import org.xml.sax.Attributes; import org.xml.sax.InputSource; import org.xml.sax.Locator; import org.xml.sax.SAXException; import org.xml.sax.XMLReader; import org.xml.sax.helpers.DefaultHandler; import org.xml.sax.helpers.XMLReaderFactory; public class Test extends DefaultHandler { private static final String SFACLIENT_ID = "XXXXXXXXXXXX"; private Locator locator; private List xmlList = new ArrayList(); Map contentMap = new HashMap(); private String value; public void characters(char[] ch, int start, int length) throws SAXException { value = new String(ch, start, length); } public void endDocument() throws SAXException { Iterator it = xmlList.iterator(); while(it.hasNext()) { Map tempMap = (Map)it.next(); Set contentSet = tempMap.keySet(); Iterator setIt = contentSet.iterator(); while(setIt.hasNext()) { String element = (String)setIt.next(); System.out.println(element + "----->" + tempMap.get(element)); } } } public void endElement(String uri, String localName, String qName) throws SAXException { String tempValue = (String)contentMap.get(qName); if(tempValue != null) { contentMap.put(qName, tempValue + value); } else { contentMap.put(qName, value); } } public void setDocumentLocator(Locator locator) { this.locator = locator; } public void startDocument() throws SAXException { } public void startElement(String uri, String localName, String qName, Attributes atts) throws SAXException { if(SFACLIENT_ID.equals(qName)) { xmlList.add(contentMap); contentMap = new HashMap(); } } public static void main(String[] args) throws Exception { String xmlURI = "D://XXXXXXXXXXX.xml"; XMLReader reader = XMLReaderFactory.createXMLReader(); reader.setContentHandler(new Test()); InputSource inputSource = new InputSource(xmlURI); reader.parse(inputSource); } }