android.gov.nist.javax.sip.parser.extensions.ReplacesParser Maven / Gradle / Ivy
package android.gov.nist.javax.sip.parser.extensions;
import android.gov.nist.javax.sip.header.*;
import android.gov.nist.javax.sip.header.extensions.*;
import android.gov.nist.javax.sip.parser.*;
import java.text.ParseException;
// Parser for Replaces Header (RFC3891)
// Extension by pmusgrave
//
// Replaces = "Replaces" HCOLON callid *(SEMI replaces-param)
// replaces-param = to-tag / from-tag / early-flag / generic-param
// to-tag = "to-tag" EQUAL token
// from-tag = "from-tag" EQUAL token
// early-flag = "early-only"
//
// TODO Should run a test case on early-only
//
public class ReplacesParser extends ParametersParser {
/**
* Creates new CallIDParser
* @param callID message to parse
*/
public ReplacesParser(String callID) {
super(callID);
}
/**
* Constructor
* @param lexer Lexer to set
*/
protected ReplacesParser(Lexer lexer) {
super(lexer);
}
/**
* parse the String message
* @return SIPHeader (CallID object)
* @throws ParseException if the message does not respect the spec.
*/
public SIPHeader parse() throws ParseException {
if (debug)
dbg_enter("parse");
try {
headerName(TokenTypes.REPLACES_TO);
Replaces replaces = new Replaces();
this.lexer.SPorHT();
String callId = lexer.byteStringNoSemicolon();
this.lexer.SPorHT();
super.parse(replaces);
replaces.setCallId(callId);
return replaces;
} finally {
if (debug)
dbg_leave("parse");
}
}
public static void main(String args[]) throws ParseException {
String to[] =
{ "Replaces: 12345th5z8z\n",
"Replaces: 12345th5z8z;to-tag=tozght6-45;from-tag=fromzght789-337-2\n",
};
for (int i = 0; i < to.length; i++) {
ReplacesParser tp = new ReplacesParser(to[i]);
Replaces t = (Replaces) tp.parse();
System.out.println("Parsing => " + to[i]);
System.out.print("encoded = " + t.encode() + "==> ");
System.out.println("callId " + t.getCallId() + " from-tag=" + t.getFromTag()
+ " to-tag=" + t.getToTag()) ;
}
}
}