com.adventnet.util.parser
Class ParserAPI

java.lang.Object
  |
  +--com.adventnet.util.parser.ParserAPI

public class ParserAPI

extends java.lang.Object

This class can be used to parse any Response (for example, a response obtained for a CLI Command). The Parsing rules are specified in an XML with Rule names. The rule names typically would be a CLI command name for a CLI Response parser. The method parse(String message,String command) should be used to parse the response message.

Constructor Summary

ParserAPI()
Constructs a ParserAPI instance.

ParserAPI(java.lang.String parserRulesXML)
Constructs a ParserAPI instance.

Method Summary

void	loadParserConfig(java.lang.String fileName) Loads the Rules XML file.
java.lang.Object	parse(java.lang.String message, java.lang.String parserType, java.lang.String commandName) This method does the parsing of the response message and returns the parsed output as any User Object.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ParserAPI

public ParserAPI()
          throws ParseException

Constructs a ParserAPI instance. The Parsing rules specified in a file called ParserRules.xml should be present in the CLASSPATH in order for the Rules and Parsers loading to succeed. If the ParserRules.xml file is not present in the CLASSPATH, then the method loadParserConfig can be used to load the rules file.

Throws:

ParseException - thrown if any error occurs while parsing of the rules XML file.

See Also:

loadParserConfig(String fileName)

ParserAPI

public ParserAPI(java.lang.String parserRulesXML)
          throws ParseException

Constructs a ParserAPI instance. The Parsing rules in XML is passed as an argument.

Parameters:

parserRulesXML - the parser rules file name

Throws:

ParseException - thrown if any error occurs while parsing of the rules XML file.

Method Detail

parse

public java.lang.Object parse(java.lang.String message,
                              java.lang.String parserType,
                              java.lang.String commandName)
                       throws ParseException

This method does the parsing of the response message and returns the parsed output as any User Object. The message parameter contains the response and the command is used to identify a particular parsing rule in the list of rules present in the XML.

Parameters:

message - the message to be parsed.

parserType - the type of the parser to use. The parser will be one of those present in the Parser configuration file.

commandName - the command name which is associated with the response message

Returns:

the parsed object as an Object.

Throws:

ParseException - thrown if any error occurs while parsing of the message.

loadParserConfig

public void loadParserConfig(java.lang.String fileName)
                      throws ParseException

Loads the Rules XML file. This can be used to load a different XML other than the one which was loaded at the time of instantiating this class.

Parameters:

fileName - the file which contains the Parsing rules.

Throws:

ParseException - thrown if any error occurs during the parsing of the Rules file.