Thanks for all the repsonses. This is all new to me so I will have to do some serious reading. It looks like I have two options. The first if I understand correctly would be to keep the program as is but add a replaceAll("&","&"); in the charachters section of the program after the setup of the stringbuffer.
The second is that I need to alter the program to use the javax.xml.transform for outputting the data. This sounds a little tricker but seems like the best method for dealing with the special characters.
I have included my mapping program below:
package package1;
import com.sap.aii.mapping.api.StreamTransformation;
import org.xml.sax.*;
import java.io.*;
import org.xml.sax.helpers.DefaultHandler;
import javax.xml.parsers.SAXParserFactory;
import java.util.Map;
import javax.xml.parsers.SAXParser;
public class PrefixChange extends DefaultHandler implements StreamTransformation{
StringBuffer textBuffer;
OutputStream Output;
// Value to be replaced
String shortNS = "PIDX";
String stdPrefix = "ns2";
String xmlStartStr = "<?xml version='1.0' encoding='UTF-8'?>";
private Map map;
public void setParameter(Map param)
{
map = param;
}
// Setup SAX Parser
public void execute (InputStream in, OutputStream out)
throws com.sap.aii.mapping.api.StreamTransformationException
{
SAXParserFactory factory = SAXParserFactory.newInstance();
try
{
SAXParser saxParser = factory.newSAXParser();
Output = out;
saxParser.parse(in, this);
}
catch (Throwable t)
{
t.printStackTrace();
}
}
public void startDocument()
throws SAXException
{
String tag = "";
// Output xml version and encoding
emitText(xmlStartStr);
// Hard return
nl();
}
public void endDocument() throws SAXException {
try {
nl(); // Line Seperator
Output.flush();
} catch (IOException e) {
throw new SAXException("I/O error", e);
}
}
public void startElement(String namespaceURI,
String sName, // simple name
String qName, // qualified name (prefix plus element
Attributes attrs)
throws SAXException
{
echoText();
String eName = sName; // element name
if ("".equals(eName))eName = qName; // not namespace-aware
// Read final element name and replace XI default prefix value
eName = eName.replaceAll(stdPrefix,shortNS);
emitStartTag(eName, attrs);
}
public void endElement(String namespaceURI,
String sName, // simple name
String qName // qualified name
)
throws SAXException
{
echoText();
String eName = sName; // element name
if ("".equals(eName)) eName = qName; // not namespace-aware
// Read final element name and replace XI default prefix value
eName = eName.replaceAll(stdPrefix,shortNS);
emitEndTag("</"eName">");
}
public void characters(char buf[], int offset, int len)
throws SAXException
{
String s = new String(buf, offset, len);
if (textBuffer == null) {
textBuffer = new StringBuffer(s);
} else {
textBuffer.append(s);
}
}
// Simple routine to output text
private void echoText()
throws SAXException
{
if (textBuffer == null) return;
String s = ""+textBuffer.toString();
emitText(s);
textBuffer = null;
}
// Simple routine to generate hard return
private void nl()
throws SAXException
{
String lineEnd = System.getProperty("line.separator");
try
{
Output.write(lineEnd.getBytes());
}
catch (IOException e) {
throw new SAXException("I/O error", e);
}
}
private void emitStartTag(String s, Attributes attrs)
throws SAXException
{
String attr = "";
String tag = "";
int length = attrs.getLength();
int i = 0;
while (i < length){
attr = attr + attrs.getQName(i) + "='" + attrs.getValue(i) + "' ";
i++;
}
// Temporary method of replacing standard XI prefix with PIDX
attr = attr.replaceAll(stdPrefix,shortNS);
if(length > 0){
s = "<"s" "attr">";
emitText(s);
} else {
s= "<"s">";
emitText(s);
}
}
private void emitEndTag(String s)
throws SAXException
{
emitText(s);
}
private void emitText(String str)
throws SAXException
{
try{
Output.write(str.getBytes());
Output.flush();
} catch (IOException e) {
throw new SAXException("I/O error", e);
}
}
private void emitAttrs(String attr) {
printAttrs(attr);
}
private void printAttrs(String attr) {
try {
Output.write(attr.getBytes());
}
catch (IOException e) {
e.notify();
}
}
public static void main (String[] args)
{
try
{
InputStream in = new FileInputStream(new File("PIDXr2.xml"));
OutputStream out = new FileOutputStream(new File("out.xml"));
PrefixChange jmt = new PrefixChange();
jmt.execute(in, out);
}
catch (Exception e)
{
e.printStackTrace();
}
}
}
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