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package pt.tumba.parser.swf;
import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.io.Writer;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
/**
* Write XML text to an output stream
*
*@author unknown
*@created 15 de Setembro de 2002
*/
public class XMLWriter extends SaxHandlerBase {
/**
* Description of the Field
*/
protected Writer out;
/**
* Description of the Field
*/
protected boolean started = false;
/**
* Constructor for the XMLWriter object
*
*@param outstream Description of the Parameter
*/
public XMLWriter(OutputStream outstream) {
out = new PrintWriter(outstream);
}
/**
* Constructor for the XMLWriter object
*
*@param writer Description of the Parameter
*/
public XMLWriter(PrintWriter writer) {
out = writer;
}
/**
* Description of the Method
*
*@exception SAXException Description of the Exception
*/
public void startDocument() throws SAXException {
try {
out.write("<?xml version='1.0'?>");
} catch (IOException ioe) {
throw new SAXException(ioe);
}
}
/**
* Description of the Method
*
*@exception SAXException Description of the Exception
*/
public void endDocument() throws SAXException {
try {
out.flush();
} catch (IOException ioe) {
throw new SAXException(ioe);
}
}
/**
* Description of the Method
*
*@exception IOException Description of the Exception
*/
protected void completeElement() throws IOException {
if (!started) {
return;
}
out.write(" >");
started = false;
}
/**
* Description of the Method
*
*@param chars Description of the Parameter
*@param start Description of the Parameter
*@param length Description of the Parameter
*@return Description of the Return Value
*/
public static String normalize(char[] chars, int start, int length) {
StringBuffer buff = new StringBuffer();
for (int i = start; i < start + length; i++) {
char c = chars[i];
switch (c) {
case '\'':
buff.append("'");
break;
case '"':
buff.append(""");
break;
case '&':
buff.append("&");
break;
case '<':
buff.append("<");
break;
case '>':
buff.append(">");
break;
default:
buff.append(""+c);
break;
}
}
return buff.toString();
}
/**
* Description of the Method
*
*@param namespaceURI Description of the Parameter
*@param localName Description of the Parameter
*@param qName Description of the Parameter
*@param atts Description of the Parameter
*@exception SAXException Description of the Exception
*/
public void startElement(String namespaceURI, String localName,
String qName, Attributes atts)
throws SAXException {
try {
completeElement();
started = true;
out.write("<" + qName);
if (atts != null) {
int count = atts.getLength();
for (int i = 0; i < count; i++) {
String name = atts.getQName(i);
String value = atts.getValue(i);
out.write(" " + name + "='" +
normalize(value.toCharArray(), 0, value.length())
+ "'");
}
}
} catch (IOException ioe) {
throw new SAXException(ioe);
}
}
/**
* Description of the Method
*
*@param namespaceURI Description of the Parameter
*@param localName Description of the Parameter
*@param qName Description of the Parameter
*@exception SAXException Description of the Exception
*/
public void endElement(String namespaceURI, String localName, String qName)
throws SAXException {
try {
if (started) {
out.write(" />");
} else {
out.write("</" + qName + ">");
}
started = false;
} catch (IOException ioe) {
throw new SAXException(ioe);
}
}
/**
* Description of the Method
*
*@param ch Description of the Parameter
*@param start Description of the Parameter
*@param length Description of the Parameter
*@exception SAXException Description of the Exception
*/
public void characters(char ch[], int start, int length)
throws SAXException {
try {
completeElement();
out.write(normalize(ch, start, length));
} catch (IOException ioe) {
throw new SAXException(ioe);
}
}
/**
* Description of the Method
*
*@param target Description of the Parameter
*@param data Description of the Parameter
*@exception SAXException Description of the Exception
*/
public void processingInstruction(String target, String data)
throws SAXException {
try {
completeElement();
out.write("<?" + target + " " + data + "?>");
} catch (IOException ioe) {
throw new SAXException(ioe);
}
}
}
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