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Elektron Transport API (ETA) Java Edition Converter Classes
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/*|-----------------------------------------------------------------------------
*| This source code is provided under the Apache 2.0 license
*| and is provided AS IS with no warranty or guarantee of fit for purpose.
*| See the project's LICENSE.md for details.
*| Copyright (C) 2019-2022 LSEG. All rights reserved.
*|-----------------------------------------------------------------------------
*/
package com.refinitiv.eta.json.converter;
import com.fasterxml.jackson.databind.JsonNode;
import com.refinitiv.eta.codec.*;
import com.refinitiv.eta.json.util.JsonFactory;
import com.refinitiv.eta.rdm.DomainTypes;
import java.util.Iterator;
import java.util.Objects;
import static com.refinitiv.eta.json.converter.BufferConverter.decodeFromBase64;
import static com.refinitiv.eta.json.converter.ConstCharArrays.*;
class JsonAckMsgConverter extends AbstractRsslMessageTypeConverter {
JsonAckMsgConverter(JsonAbstractConverter converter) {
super(converter);
}
@Override
boolean encodeJson(DecodeIterator decIter, Object msg, JsonBuffer outBuffer, JsonConverterError error) {
AckMsg ackMsg = (AckMsg) msg;
BufferHelper.writeArrayAndColon(JSON_ACKID, outBuffer, true, error);
BasicPrimitiveConverter.writeLong(ackMsg.ackId(), outBuffer, error);
if (ackMsg.flags() != AckMsgFlags.NONE) {
if (ackMsg.checkHasNakCode()) {
BufferHelper.writeArrayAndColon(JSON_NAKCODE, outBuffer, true, error);
String code = getNakCodeString(ackMsg.nakCode());
if (code != null)
BufferHelper.writeArray(code, outBuffer, true, error);
else
BasicPrimitiveConverter.writeLong(ackMsg.nakCode(), outBuffer, error);
}
if (ackMsg.checkHasText()) {
BufferHelper.writeArrayAndColon(ConstCharArrays.JSON_TEXT, outBuffer, true, error);
BasicPrimitiveConverter.writeSafeString(ackMsg.text(), outBuffer, error);
}
if (ackMsg.checkPrivateStream()) {
BufferHelper.writeArrayAndColon(ConstCharArrays.JSON_PRIVATE, outBuffer, true, error);
BufferHelper.writeArray(ConstCharArrays.trueString, outBuffer, false, error);
}
if (ackMsg.checkHasSeqNum()) {
BufferHelper.writeArrayAndColon(ConstCharArrays.JSON_SEQNUM, outBuffer, true, error);
BasicPrimitiveConverter.writeLong(ackMsg.seqNum(), outBuffer, error);
}
if (ackMsg.checkHasMsgKey()) {
BufferHelper.writeArrayAndColon(ConstCharArrays.JSON_KEY, outBuffer, true, error);
if (!converter.processMsgKey(decIter, ackMsg.msgKey(), outBuffer, ackMsg.domainType(), true, error))
return false;
}
if (ackMsg.checkHasExtendedHdr()) {
if (Objects.nonNull(ackMsg.extendedHeader()) && Objects.nonNull(ackMsg.extendedHeader().data())) {
BufferHelper.writeArrayAndColon(JSON_EXTHDR, outBuffer, true, error);
if (!converter.getPrimitiveHandler(DataTypes.BUFFER).encodeJson(ackMsg.extendedHeader(), outBuffer, error))
return false;
} else {
error.setError(JsonConverterErrorCodes.JSON_ERROR_UNEXPECTED_VALUE, "Found empty extended header");
return false;
}
}
if (ackMsg.checkQualifiedStream()) {
BufferHelper.writeArrayAndColon(JSON_QUALIFIED, outBuffer, true, error);
BufferHelper.writeArray(ConstCharArrays.trueString, outBuffer, false, error);
}
}
if (ackMsg.containerType() != DataTypes.NO_DATA) {
BufferHelper.comma(outBuffer, error);
if (!converter.getContainerHandler(ackMsg.containerType()).encodeJson(decIter, outBuffer, true, null, error))
return false;
}
return error.isSuccessful();
}
private String getNakCodeString(int code) {
switch (code) {
case NakCodes.NONE:
return ConstCharArrays.NAKC_NONE;
case NakCodes.ACCESS_DENIED:
return ConstCharArrays.NAKC_ACCESS_DENIED;
case NakCodes.DENIED_BY_SRC:
return ConstCharArrays.NAKC_DENIED_BY_SRC;
case NakCodes.SOURCE_DOWN:
return ConstCharArrays.NAKC_SOURCE_DOWN;
case NakCodes.SOURCE_UNKNOWN:
return ConstCharArrays.NAKC_SOURCE_UNKNOWN;
case NakCodes.NO_RESOURCES:
return ConstCharArrays.NAKC_NO_RESOURCES;
case NakCodes.NO_RESPONSE:
return ConstCharArrays.NAKC_NO_RESPONSE;
case NakCodes.GATEWAY_DOWN:
return ConstCharArrays.NAKC_GATEWAY_DOWN;
case NakCodes.SYMBOL_UNKNOWN:
return ConstCharArrays.NAKC_SYMBOL_UNKNOWN;
case NakCodes.NOT_OPEN:
return ConstCharArrays.NAKC_NOT_OPEN;
case NakCodes.INVALID_CONTENT:
return ConstCharArrays.NAKC_INVALID_CONTENT;
default:
return null;
}
}
@Override
protected void decodeJson(JsonNode node, Object msg, JsonConverterError error) {
((Msg)msg).msgClass(MsgClasses.ACK);
AckMsg ackMsg = (AckMsg) msg;
ackMsg.domainType(DomainTypes.MARKET_PRICE);
//use flags to set properties with default True value
boolean hasId = false;
Buffer extendedHeaderBuffer = null;
Buffer permDataBuffer = null;
try {
for (Iterator it = node.fieldNames(); it.hasNext(); ) {
String key = it.next();
JsonNode currentNode = node.path(key);
switch (key) {
case JSON_ID:
ackMsg.streamId(getInt(currentNode, key, error));
hasId = true;
break;
case JSON_TYPE:
//message type already considered on top level
break;
case JSON_DOMAIN:
checkStringOrInt(currentNode, key, error);
if (error.isFailed())
break;
if (currentNode.isTextual())
ackMsg.domainType(
ConstCharArrays.JsonDomain.ofValue(
getText(currentNode, key, error)
, error)
);
else
ackMsg.domainType(getInt(currentNode, key, error));
break;
//treat as body
case JSON_ELEMENTS:
case JSON_FIELDS:
case JSON_FILTERLIST:
case JSON_MAP:
case JSON_MESSAGE:
case JSON_VECTOR:
case JSON_JSON:
case JSON_XML:
case JSON_OPAQUE:
case JSON_SERIES:
ackMsg.containerType(converter.getContainerDataType(key, currentNode, error));
break;
case JSON_KEY:
ackMsg.applyHasMsgKey();
converter.decodeChunk(RsslMsgChunkType.MSG_KEY_CHUNK, currentNode, ackMsg, error);
break;
case JSON_SEQNUM:
ackMsg.applyHasSeqNum();
ackMsg.seqNum(getLong(currentNode, key, error));
break;
case JSON_TEXT:
ackMsg.applyHasText();
ackMsg.text().data(getText(currentNode, key, error));
break;
case JSON_ACKID:
ackMsg.ackId(getLong(currentNode, key, error));
break;
case JSON_PRIVATE:
if (getBoolean(currentNode, key, error))
ackMsg.applyPrivateStream();
break;
case JSON_QUALIFIED:
if (getBoolean(currentNode, key, error))
ackMsg.applyQualifiedStream();
break;
case JSON_EXTHDR:
ackMsg.applyHasExtendedHdr();
extendedHeaderBuffer = JsonFactory.createBuffer();
decodeFromBase64(getText(currentNode, key, error), extendedHeaderBuffer, error);
if (error.isFailed())
break;
ackMsg.extendedHeader(extendedHeaderBuffer);
break;
case JSON_NAKCODE:
checkStringOrInt(currentNode, key, error);
if (error.isFailed())
return;
ackMsg.applyHasNakCode();
if (currentNode.isTextual())
ackMsg.nakCode(ConstCharArrays.JsonNackCode.ofValue(getText(currentNode, key, error), error));
else
ackMsg.nakCode(getInt(currentNode, key, error));
break;
default:
processUnexpectedKey(key, error);
}
if (error.isFailed())
return;
}
if (!hasId)
error.setError(JsonConverterErrorCodes.JSON_ERROR_MISSING_KEY, JSON_ID);
} finally {
if (extendedHeaderBuffer != null)
JsonFactory.releaseBuffer(extendedHeaderBuffer);
if (permDataBuffer != null)
JsonFactory.releaseBuffer(permDataBuffer);
}
}
}