/**
* Adds a {@link ChannelWrapper} to the request wrapper chain.
*
* @param wrapper the wrapper
*/
public void addRequestWrapper(final ChannelWrapper<StreamSourceChannel> wrapper) {
ChannelWrapper[] oldVal;
ChannelWrapper[] newVal;
int oldLen;
do {
oldVal = requestWrappers;
if (oldVal == null) {
throw UndertowMessages.MESSAGES.requestChannelAlreadyProvided();
}
oldLen = oldVal.length;
newVal = Arrays.copyOf(oldVal, oldLen + 1);
newVal[oldLen] = wrapper;
} while (!requestWrappersUpdater.compareAndSet(this, oldVal, newVal));
}
@Override
public FormData parseBlocking() throws IOException {
final FormData existing = exchange.getAttachment(FORM_DATA);
if (existing != null) {
return existing;
}
StreamSourceChannel channel = exchange.getRequestChannel();
if (channel == null) {
throw new IOException(UndertowMessages.MESSAGES.requestChannelAlreadyProvided());
} else {
while (state != 4) {
doParse(channel);
if (state != 4) {
channel.awaitReadable();
}
}
}
return data;
}
@Override
public void parse(HttpHandler handler) throws Exception {
if (exchange.getAttachment(FORM_DATA) != null) {
handler.handleRequest(exchange);
return;
}
this.handler = handler;
StreamSourceChannel channel = exchange.getRequestChannel();
if (channel == null) {
throw new IOException(UndertowMessages.MESSAGES.requestChannelAlreadyProvided());
} else {
doParse(channel);
if (state != 4) {
channel.getReadSetter().set(this);
channel.resumeReads();
} else {
exchange.dispatch(SameThreadExecutor.INSTANCE, handler);
}
}
}