private void readProlog() throws IOException {
sequenceMatcher.setBytesHandler(NOOP_HANDLER);
sequenceMatcher.findSequence(-1, HYPHENS, boundaryMarker);
if (!sequenceMatcher.isMatchedAndNotEOF()) {
throw new IOException("Request prolog cannot be read");
}
}
private void readData(final Param param) throws IOException {
sequenceMatcher.setBytesHandler(param);
sequenceMatcher.findSequence(CHUNK_SIZE, CR_LF, HYPHENS, boundaryMarker);
if (!this.sequenceMatcher.isMatchedAndNotEOF()) {
throw new IOException("Request data cannot be read");
}
}
private Param readHeader() throws IOException {
if (sequenceMatcher.isEOF()) {
return null;
}
if (headersHandler == null) {
headersHandler = new HeadersHandler();
} else {
headersHandler.reset();
}
sequenceMatcher.setBytesHandler(headersHandler);
sequenceMatcher.findSequence(-1, CR_LF);
if (sequenceMatcher.isMatchedAndNotEOF() && !headersHandler.dataEquals(HYPHENS)) {
headersHandler.reset();
sequenceMatcher.findSequence(-1, CR_LF, CR_LF);
if (!sequenceMatcher.isMatchedAndNotEOF()) {
throw new IOException("Request header cannot be read");
}
String headersString = headersHandler.asString();
Map<String, String> headers = new HashMap<String, String>();
String[] split = headersString.split("\r\n");
for (String headerString : split) {
parseParams(headerString, "; ", headers);
}
return createParam(headers);
}
return null;
}
public void parseRequest() {
canStop = true;
setupProgressData();
try {
initialize();
while (!sequenceMatcher.isEOF()) {
readNext();
}
} catch (IOException e) {
this.cancel();
if (!this.shouldStop) {
throw new FileUploadException("IO Error parsing multipart request", e);
}
} finally {
canStop = false;
}
}
private Param getParam(String name) {
Param param = null;
if (parameters != null) {
param = parameters.get(name);
}
if (param == null) {
if (!canceled) {
try {
initialize();
while (param == null && !sequenceMatcher.isEOF()) {
readNext();
param = parameters.get(name);
}
} catch (IOException e) {
this.cancel();
throw new FileUploadException("IO Error parsing multipart request", e);
}
}
}
return param;
}
