public static HandshakeBuilder translateHandshakeHttp( ByteBuffer buf, Role role ) throws InvalidHandshakeException , IncompleteHandshakeException {
HandshakeBuilder handshake;
String line = readStringLine( buf );
if( line == null )
throw new IncompleteHandshakeException( buf.capacity() + 128 );
String[] firstLineTokens = line.split( " ", 3 );// eg. HTTP/1.1 101 Switching the Protocols
if( firstLineTokens.length != 3 ) {
throw new InvalidHandshakeException();
}
if( role == Role.CLIENT ) {
// translating/parsing the response from the SERVER
handshake = new HandshakeImpl1Server();
ServerHandshakeBuilder serverhandshake = (ServerHandshakeBuilder) handshake;
serverhandshake.setHttpStatus( Short.parseShort( firstLineTokens[ 1 ] ) );
serverhandshake.setHttpStatusMessage( firstLineTokens[ 2 ] );
} else {
// translating/parsing the request from the CLIENT
ClientHandshakeBuilder clienthandshake = new HandshakeImpl1Client();
clienthandshake.setResourceDescriptor( firstLineTokens[ 1 ] );
handshake = clienthandshake;
}
line = readStringLine( buf );
while ( line != null && line.length() > 0 ) {
String[] pair = line.split( ":", 2 );
if( pair.length != 2 )
throw new InvalidHandshakeException( "not an http header" );
handshake.put( pair[ 0 ], pair[ 1 ].replaceFirst( "^ +", "" ) );
line = readStringLine( buf );
}
if( line == null )
throw new IncompleteHandshakeException();
return handshake;
}