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import java.io.FileOutputStream;
import java.io.IOException;
import java.io.PrintWriter;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import org.xml.sax.Attributes;
import org.xml.sax.ContentHandler;
import org.xml.sax.ErrorHandler;
import org.xml.sax.InputSource;
import org.xml.sax.Locator;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
import org.xml.sax.XMLReader;
public class SAXCopy {
static public void main(String[] arg) {
String infilename = null;
String outfilename = null;
if (arg.length == 2) {
infilename = arg[0];
outfilename = arg[1];
} else {
usage();
}
try {
SAXParserFactory spf = SAXParserFactory.newInstance();
SAXParser parser = spf.newSAXParser();
XMLReader reader = parser.getXMLReader();
reader.setErrorHandler(new MyErrorHandler());
FileOutputStream fos = new FileOutputStream(outfilename);
PrintWriter out = new PrintWriter(fos);
MyCopyHandler duper = new MyCopyHandler(out);
reader.setContentHandler(duper);
InputSource is = new InputSource(infilename);
reader.parse(is);
out.close();
} catch (SAXException e) {
System.exit(1);
} catch (ParserConfigurationException e) {
System.err.println(e);
System.exit(1);
} catch (IOException e) {
System.err.println(e);
System.exit(1);
}
}
private static void usage() {
System.err.println("Usage: SAXCopy <infile> <outfile>");
System.exit(1);
}
}
class MyCopyHandler implements ContentHandler {
private boolean namespaceBegin = false;
private String currentNamespace;
private String currentNamespaceUri;
private Locator locator;
private PrintWriter out;
public MyCopyHandler(PrintWriter out) {
this.out = out;
}
public void setDocumentLocator(Locator locator) {
this.locator = locator;
}
public void startDocument() {
out.println("<?xml version=\"1.0\"?>");
out.println();
}
public void endDocument() {
}
public void startPrefixMapping(String prefix, String uri) {
namespaceBegin = true;
currentNamespace = prefix;
currentNamespaceUri = uri;
}
public void endPrefixMapping(String prefix) {
}
public void startElement(String namespaceURI, String localName,
String qName, Attributes atts) {
out.print("<" + qName);
if (namespaceBegin) {
out.print(" xmlns:" + currentNamespace + "=\""
+ currentNamespaceUri + "\"");
namespaceBegin = false;
}
for (int i = 0; i < atts.getLength(); i++) {
out.print(" " + atts.getQName(i) + "=\\" + atts.getValue(i) + "\"");
}
out.print(">");
}
public void endElement(String namespaceURI, String localName, String qName) {
out.print("</" + qName + ">");
}
public void characters(char[] ch, int start, int length) {
for (int i = start; i < start + length; i++)
out.print(ch[i]);
}
public void ignorableWhitespace(char[] ch, int start, int length) {
for (int i = start; i < start + length; i++)
out.print(ch[i]);
}
public void processingInstruction(String target, String data) {
out.print("<?" + target + " " + data + "?>");
}
public void skippedEntity(String name) {
out.print("&" + name + ";");
}
}
class MyErrorHandler implements ErrorHandler {
public void warning(SAXParseException e) throws SAXException {
show("Warning", e);
throw (e);
}
public void error(SAXParseException e) throws SAXException {
show("Error", e);
throw (e);
}
public void fatalError(SAXParseException e) throws SAXException {
show("Fatal Error", e);
throw (e);
}
private void show(String type, SAXParseException e) {
System.out.println(type + ": " + e.getMessage());
System.out.println("Line " + e.getLineNumber() + " Column "
+ e.getColumnNumber());
System.out.println("System ID: " + e.getSystemId());
}
}
//Example XML document
/* An XML Document
<?xml version="1.0" standalone="yes"?>
<person>
<name>Joe Yin</name>
<phone type="home">306 555-9999</phone>
<email>joe@yoursite.net;</email>
</person>
*/
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