public static int encode(
final MutableDirectBuffer mutableDirectBuffer,
final int offset,
int flags,
final int keepaliveInterval,
final int maxLifetime,
final String metadataMimeType,
final String dataMimeType,
final ByteBuffer metadata,
final ByteBuffer data) {
final int frameLength =
computeFrameLength(metadataMimeType, dataMimeType, metadata.remaining(), data.remaining());
int length =
FrameHeaderFlyweight.encodeFrameHeader(
mutableDirectBuffer, offset, frameLength, flags, FrameType.SETUP, 0);
mutableDirectBuffer.putInt(
offset + VERSION_FIELD_OFFSET, CURRENT_VERSION, ByteOrder.BIG_ENDIAN);
mutableDirectBuffer.putInt(
offset + KEEPALIVE_INTERVAL_FIELD_OFFSET, keepaliveInterval, ByteOrder.BIG_ENDIAN);
mutableDirectBuffer.putInt(
offset + MAX_LIFETIME_FIELD_OFFSET, maxLifetime, ByteOrder.BIG_ENDIAN);
length += BitUtil.SIZE_OF_INT * 3;
length += putMimeType(mutableDirectBuffer, offset + length, metadataMimeType);
length += putMimeType(mutableDirectBuffer, offset + length, dataMimeType);
length +=
FrameHeaderFlyweight.encodeMetadata(mutableDirectBuffer, offset, offset + length, metadata);
length += FrameHeaderFlyweight.encodeData(mutableDirectBuffer, offset + length, data);
return length;
}
private static int putMimeType(
final MutableDirectBuffer mutableDirectBuffer, final int fieldOffset, final String mimeType) {
byte[] bytes = mimeType.getBytes(StandardCharsets.UTF_8);
mutableDirectBuffer.putByte(fieldOffset, (byte) bytes.length);
mutableDirectBuffer.putBytes(fieldOffset + 1, bytes);
return 1 + bytes.length;
}
private long encodeApplicationMessageWithFrame(ByteBuffer buffer, byte[] message) {
int offset = 0;
mutableBuffer.wrap(buffer);
frameEncoder.wrap(buffer, offset).encodeFrameHeader();
offset += frameEncoder.getHeaderLength();
messageHeaderEncoder.wrap(mutableBuffer, offset);
messageHeaderEncoder
.blockLength(message.length)
.templateId(templateId)
.schemaId(schemaId)
.version(schemaVersion);
offset += MessageHeaderEncoder.ENCODED_LENGTH;
buffer.position(offset);
buffer.put(message, 0, message.length);
frameEncoder.setMessageLength(message.length + MessageHeaderEncoder.ENCODED_LENGTH);
frameEncoder.encodeFrameTrailer();
return frameEncoder.getEncodedLength();
}
public void wrap(final MutableDirectBuffer buffer, final int offset) {
super.wrap(buffer, offset);
buffer.putInt(offset, type().ordinal());
}