gov.nist.javax.sip.parser.WarningParser Maven / Gradle / Ivy
/*
* Conditions Of Use
*
* This software was developed by employees of the National Institute of
* Standards and Technology (NIST), an agency of the Federal Government.
* Pursuant to title 15 Untied States Code Section 105, works of NIST
* employees are not subject to copyright protection in the United States
* and are considered to be in the public domain. As a result, a formal
* license is not needed to use the software.
*
* This software is provided by NIST as a service and is expressly
* provided "AS IS." NIST MAKES NO WARRANTY OF ANY KIND, EXPRESS, IMPLIED
* OR STATUTORY, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTY OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT
* AND DATA ACCURACY. NIST does not warrant or make any representations
* regarding the use of the software or the results thereof, including but
* not limited to the correctness, accuracy, reliability or usefulness of
* the software.
*
* Permission to use this software is contingent upon your acceptance
* of the terms of this agreement
*
* .
*
*/
package android.gov.nist.javax.sip.parser;
import android.gov.nist.javax.sip.header.*;
import android.gov.nist.core.*;
import java.text.ParseException;
import android.javax.sip.*;
/**
* Parser for Warning header.
*
* @version 1.2
*
* @author Olivier Deruelle
* @author M. Ranganathan
*
*
*
* @version 1.0
*/
public class WarningParser extends HeaderParser {
/**
* Constructor
*
* @param warning -
* Warning header to parse
*/
public WarningParser(String warning) {
super(warning);
}
/**
* Cosntructor
*
* @param lexer -
* the lexer to use.
*/
protected WarningParser(Lexer lexer) {
super(lexer);
}
/**
* parse the String message
*
* @return SIPHeader (WarningList object)
* @throws SIPParseException
* if the message does not respect the spec.
*/
public SIPHeader parse() throws ParseException {
WarningList warningList = new WarningList();
if (debug)
dbg_enter("WarningParser.parse");
try {
headerName(TokenTypes.WARNING);
while (lexer.lookAhead(0) != '\n') {
Warning warning = new Warning();
warning.setHeaderName(SIPHeaderNames.WARNING);
// Parsing the 3digits code
this.lexer.match(TokenTypes.ID);
Token token = lexer.getNextToken();
try {
int code = Integer.parseInt(token.getTokenValue());
warning.setCode(code);
} catch (NumberFormatException ex) {
throw createParseException(ex.getMessage());
} catch (InvalidArgumentException ex) {
throw createParseException(ex.getMessage());
}
this.lexer.SPorHT();
// Parsing the agent
this.lexer.match(TokenTypes.ID);
token = lexer.getNextToken();
// Bug reported by [email protected]
if (lexer.lookAhead(0) == ':') {
this.lexer.match(':');
this.lexer.match(TokenTypes.ID);
Token token2 = lexer.getNextToken();
warning.setAgent(token.getTokenValue() + ":"
+ token2.getTokenValue());
} else {
warning.setAgent(token.getTokenValue());
}
this.lexer.SPorHT();
// Parsing the text
String text = this.lexer.quotedString();
warning.setText(text);
this.lexer.SPorHT();
warningList.add(warning);
while (lexer.lookAhead(0) == ',') {
this.lexer.match(',');
this.lexer.SPorHT();
warning = new Warning();
// Parsing the 3digits code
this.lexer.match(TokenTypes.ID);
Token tok = lexer.getNextToken();
try {
int code = Integer.parseInt(tok.getTokenValue());
warning.setCode(code);
} catch (NumberFormatException ex) {
throw createParseException(ex.getMessage());
} catch (InvalidArgumentException ex) {
throw createParseException(ex.getMessage());
}
this.lexer.SPorHT();
// Parsing the agent
this.lexer.match(TokenTypes.ID);
tok = lexer.getNextToken();
// Bug reported by [email protected]
if (lexer.lookAhead(0) == ':') {
this.lexer.match(':');
this.lexer.match(TokenTypes.ID);
Token token2 = lexer.getNextToken();
warning.setAgent(tok.getTokenValue() + ":"
+ token2.getTokenValue());
} else {
warning.setAgent(tok.getTokenValue());
}
this.lexer.SPorHT();
// Parsing the text
text = this.lexer.quotedString();
warning.setText(text);
this.lexer.SPorHT();
warningList.add(warning);
}
}
} finally {
if (debug)
dbg_leave("WarningParser.parse");
}
return warningList;
}
/**
* public static void main(String args[]) throws ParseException { String
* warning[] = { "Warning: 307 isi.edu \"Session parameter 'foo' not
* understood\"\n", "Warning: 301 isi.edu \"Incompatible network address
* type 'E.164'\"\n", "Warning: 312 ii.edu \"Soda\", "+ " 351 i.edu \"I
* network address 'E.164'\" , 323 ii.edu \"Sodwea\"\n", "Warning: 392
* 192.168.89.71:5060 \"Noisy feedback tells: pid=936
* req_src_ip=192.168.89.20 in_uri=sip:[email protected]:5061
* out_uri=sip:[email protected]:5061 via_cnt==1\"\n" };
*
* for (int i = 0; i < warning.length; i++ ) { WarningParser parser = new
* WarningParser(warning[i]); WarningList warningList= (WarningList)
* parser.parse(); System.out.println("encoded = " + warningList.encode()); }
* }
*/
}