com.tailf.jnc.YangXMLParser Maven / Gradle / Ivy
package com.tailf.jnc;
import org.xml.sax.InputSource;
/**
* A SAX parser, for parsing for example NETCONF messages, into a simple
* {@link YangElement YangElement} tree.
*
* This parser is data model aware and will try to construct classes that are
* generated by the JNC pyang plugin.
*
*/
public class YangXMLParser extends XMLParser {
/**
* Constructor. Initializes the parser instance.
*/
public YangXMLParser() throws JNCException {
super();
}
/**
* Read in an XML file, parse it using an ElementHandler as content
* handler, and return the parsed YangElement tree.
*/
@Override
public YangElement readFile(String filename) throws JNCException {
try {
final ElementHandler handler = new ElementHandler();
parser.setContentHandler(handler);
parser.parse(filename);
return (YangElement) handler.top;
} catch (final Exception e) {
throw new JNCException(JNCException.PARSER_ERROR, "parse file: "
+ filename + " error: " + e);
}
}
/**
* Parses an XML string returning a configuration tree from it,
* instantiating an ElementHandler to use as content handler.
*
* @param is Input source (byte stream) where the XML text is read from
*/
@Override
public Element parse(InputSource is) throws JNCException {
try {
final ElementHandler handler = new ElementHandler();
parser.setContentHandler(handler);
parser.parse(is);
return handler.top;
} catch (final Exception e) {
e.printStackTrace();
throw new JNCException(JNCException.PARSER_ERROR, "parse error: "
+ e);
}
}
}