@Override
public StateEnum onExit(
ChannelBuffer buffer, IcapMessageDecoder icapMessageDecoder, Object decisionInformation)
throws DecodingException {
IcapMessage message = icapMessageDecoder.message;
Encapsulated encapsulated = message.getEncapsulatedHeader();
if (message instanceof IcapRequest
&& ((IcapRequest) message).getMethod().equals(IcapMethod.OPTIONS)) {
if (encapsulated != null && encapsulated.containsEntry(IcapMessageElementEnum.OPTBODY)) {
return StateEnum.READ_CHUNK_SIZE_STATE;
} else {
return null;
}
} else {
IcapMessageElementEnum entry = encapsulated.getNextEntry();
if (entry != null) {
if (entry.equals(IcapMessageElementEnum.REQHDR)) {
return StateEnum.READ_HTTP_REQUEST_INITIAL_AND_HEADERS;
} else if (entry.equals(IcapMessageElementEnum.RESHDR)) {
return StateEnum.READ_HTTP_RESPONSE_INITIAL_AND_HEADERS;
} else if (entry.equals(IcapMessageElementEnum.REQBODY)) {
return StateEnum.READ_CHUNK_SIZE_STATE;
} else if (entry.equals(IcapMessageElementEnum.RESBODY)) {
return StateEnum.READ_CHUNK_SIZE_STATE;
}
}
}
return null;
}
@Override
public StateReturnValue execute(ChannelBuffer buffer, IcapMessageDecoder icapMessageDecoder)
throws DecodingException {
List<String[]> headerList =
IcapDecoderUtil.readHeaders(buffer, icapMessageDecoder.maxIcapHeaderSize);
icapMessageDecoder.message.clearHeaders();
for (String[] header : headerList) {
icapMessageDecoder.message.addHeader(header[0], header[1]);
}
boolean isRequest = icapMessageDecoder.message instanceof IcapRequest;
boolean isOptionsRequest =
isRequest
&& ((IcapRequest) icapMessageDecoder.message).getMethod().equals(IcapMethod.OPTIONS);
handleEncapsulationHeaderVolatility(icapMessageDecoder.message);
validateMandatoryMessageHeaders(icapMessageDecoder.message);
Encapsulated encapsulated = null;
String headerValue = icapMessageDecoder.message.getHeader(IcapHeaders.Names.ENCAPSULATED);
if (headerValue != null) {
encapsulated =
new Encapsulated(icapMessageDecoder.message.getHeader(IcapHeaders.Names.ENCAPSULATED));
icapMessageDecoder.message.setEncapsulatedHeader(encapsulated);
}
if (isOptionsRequest) {
return StateReturnValue.createRelevantResult(icapMessageDecoder.message);
} else if (encapsulated != null
&& !encapsulated.containsEntry(IcapMessageElementEnum.REQHDR)
& !encapsulated.containsEntry(IcapMessageElementEnum.RESHDR)) {
return StateReturnValue.createRelevantResult(icapMessageDecoder.message);
}
return StateReturnValue.createIrrelevantResult();
}
