protected long buildResponseStringBuf(String s, long r, final long preChain) {
if (s == null) {
return 0;
}
if (s.length() == 0) {
return -NGX_HTTP_NO_CONTENT;
}
CharsetEncoder charsetEncoder =
ThreadLocalCoders.encoderFor(DEFAULT_ENCODING)
.onMalformedInput(CodingErrorAction.REPLACE)
.onUnmappableCharacter(CodingErrorAction.REPLACE);
ByteBuffer bb = pickByteBuffer();
CharBuffer cb = CharBuffer.wrap((char[]) UNSAFE.getObject(s, STRING_CHAR_ARRAY_OFFSET));
charsetEncoder.reset();
CoderResult result = CoderResult.UNDERFLOW;
long first = 0;
long chain = preChain;
do {
result = charsetEncoder.encode(cb, bb, true);
if (result == CoderResult.OVERFLOW) {
bb.flip();
chain =
ngx_http_clojure_mem_build_temp_chain(
r, chain, bb.array(), BYTE_ARRAY_OFFSET, bb.remaining());
if (chain <= 0) {
return chain;
}
bb.clear();
if (first == 0) {
first = chain;
}
} else if (result == CoderResult.UNDERFLOW) {
break;
} else {
log.error("%s can not decode string : %s", result.toString(), s);
return -NGX_HTTP_INTERNAL_SERVER_ERROR;
}
} while (true);
while (charsetEncoder.flush(bb) == CoderResult.OVERFLOW) {
bb.flip();
chain =
ngx_http_clojure_mem_build_temp_chain(
r, chain, bb.array(), BYTE_ARRAY_OFFSET, bb.remaining());
if (chain <= 0) {
return chain;
}
if (first == 0) {
first = chain;
}
bb.clear();
}
if (bb.hasRemaining()) {
bb.flip();
chain =
ngx_http_clojure_mem_build_temp_chain(
r, chain, bb.array(), BYTE_ARRAY_OFFSET, bb.remaining());
if (chain <= 0) {
return chain;
}
if (first == 0) {
first = chain;
}
bb.clear();
}
return preChain == 0 ? first : chain;
}
@SuppressWarnings({"unchecked"})
public <T> T getFieldFast(int pos) {
return (T) UNSAFE.getObject(this, offsets[pos]);
}
