public static Conditionals valueOf(Headers headers) {
ImmutableList<Tag> ifMatch = makeTags(headers.getFirstHeaderValue(HeaderConstants.IF_MATCH));
ImmutableList<Tag> ifNoneMatch =
makeTags(headers.getFirstHeaderValue(HeaderConstants.IF_NONE_MATCH));
DateTime modifiedSince =
HeaderUtils.fromHttpDate(headers.getFirstHeader(HeaderConstants.IF_MODIFIED_SINCE));
DateTime unModifiedSince =
HeaderUtils.fromHttpDate(headers.getFirstHeader(HeaderConstants.IF_UNMODIFIED_SINCE));
return new Conditionals(ifMatch, ifNoneMatch, modifiedSince, unModifiedSince);
}
public static HTTPResponse createResponse(
final StatusLine line, final Headers responseHeaders, final Optional<InputStream> stream) {
Optional<String> contentLengthHeader =
responseHeaders.getFirstHeaderValue(HeaderConstants.CONTENT_LENGTH);
MIMEType type = responseHeaders.getContentType().orElse(MIMEType.APPLICATION_OCTET_STREAM);
Optional<Long> length = responseHeaders.getContentLength();
Optional<Payload> payload =
stream
.filter(is -> line.getStatus().isBodyContentAllowed())
.map(is -> new InputStreamPayload(is, type, length.orElse(-1L)));
return new HTTPResponse(payload, line, responseHeaders);
}