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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 JsonGenericMsgConverter extends AbstractRsslMessageTypeConverter {
JsonGenericMsgConverter(JsonAbstractConverter converter) {
super(converter);
}
@Override
boolean encodeJson(DecodeIterator decIter, Object msg, JsonBuffer outBuffer, JsonConverterError error) {
GenericMsg genericMsg = (GenericMsg) msg;
if (genericMsg.flags() != GenericMsgFlags.NONE) {
if (genericMsg.checkHasMsgKey()) {
BufferHelper.writeArrayAndColon(ConstCharArrays.JSON_KEY, outBuffer, true, error);
converter.processMsgKey(decIter, genericMsg.msgKey(), outBuffer, genericMsg.domainType(), true, error);
}
if (genericMsg.checkHasSeqNum()) {
BufferHelper.writeArrayAndColon(ConstCharArrays.JSON_SEQNUM, outBuffer, true, error);
BasicPrimitiveConverter.writeLong(genericMsg.seqNum(), outBuffer, error);
}
if (genericMsg.checkHasSecondarySeqNum()) {
BufferHelper.writeArrayAndColon(ConstCharArrays.JSON_SECSEQNUM, outBuffer, true, error);
BasicPrimitiveConverter.writeLong(genericMsg.secondarySeqNum(), outBuffer, error);
}
if (genericMsg.checkHasPartNum()) {
BufferHelper.writeArrayAndColon(ConstCharArrays.JSON_PARTNUMBER, outBuffer, true, error);
BasicPrimitiveConverter.writeLong(genericMsg.partNum(), outBuffer, error);
}
if (genericMsg.checkHasPermData()) {
if (Objects.nonNull(genericMsg.permData()) && Objects.nonNull(genericMsg.permData().data())) {
BufferHelper.writeArrayAndColon(ConstCharArrays.JSON_PERMDATA, outBuffer, true, error);
if (!converter.getPrimitiveHandler(DataTypes.BUFFER).encodeJson(genericMsg.permData(), outBuffer, error))
return false;
} else {
error.setError(JsonConverterErrorCodes.JSON_ERROR_UNEXPECTED_VALUE, "Empty permission data found");
return false;
}
}
if (genericMsg.checkHasExtendedHdr()) {
if (Objects.nonNull(genericMsg.extendedHeader()) && Objects.nonNull(genericMsg.extendedHeader().data())) {
BufferHelper.writeArrayAndColon(ConstCharArrays.JSON_EXTHDR, outBuffer, true, error);
if (!converter.getPrimitiveHandler(DataTypes.BUFFER).encodeJson(genericMsg.extendedHeader(), outBuffer, error))
return false;
} else {
error.setError(JsonConverterErrorCodes.JSON_ERROR_UNEXPECTED_VALUE, "Empty extended header found");
return false;
}
}
}
if (!genericMsg.checkMessageComplete()) {
BufferHelper.writeArrayAndColon(ConstCharArrays.JSON_COMPLETE, outBuffer, true, error);
BufferHelper.writeArray(ConstCharArrays.falseString, outBuffer, false, error);
}
if (genericMsg.checkIsProviderDriven()) {
BufferHelper.writeArrayAndColon(JSON_PROVIDER_DRIVEN, outBuffer, true, error);
BufferHelper.writeArray(trueString, outBuffer, false, error);
}
if (genericMsg.containerType() != DataTypes.NO_DATA) {
BufferHelper.comma(outBuffer, error);
if (!converter.getContainerHandler(genericMsg.containerType()).encodeJson(decIter, outBuffer, true, null, error))
return false;
}
return error.isSuccessful();
}
@Override
protected void decodeJson(JsonNode node, Object msg, JsonConverterError error) {
((Msg)msg).msgClass(MsgClasses.GENERIC);
GenericMsg genericMsg = (GenericMsg) msg;
genericMsg.domainType(DomainTypes.MARKET_PRICE);
//use flags to set properties with default True value
boolean hasId = false;
Buffer extendedHeaderBuffer = null;
Buffer permDataBuffer = null;
boolean isComplete = true;
try {
for (Iterator it = node.fieldNames(); it.hasNext(); ) {
String key = it.next();
JsonNode currentNode = node.path(key);
switch (key) {
case JSON_ID:
genericMsg.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())
genericMsg.domainType(
ConstCharArrays.JsonDomain.ofValue(
getText(currentNode, key, error)
, error)
);
else
genericMsg.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:
genericMsg.containerType(converter.getContainerDataType(key, currentNode, error));
break;
case JSON_KEY:
genericMsg.applyHasMsgKey();
converter.decodeChunk(RsslMsgChunkType.MSG_KEY_CHUNK, currentNode, genericMsg, error);
break;
case JSON_EXTHDR:
genericMsg.applyHasExtendedHdr();
extendedHeaderBuffer = JsonFactory.createBuffer();
decodeFromBase64(getText(currentNode, key, error), extendedHeaderBuffer, error);
if (error.isFailed())
break;
genericMsg.extendedHeader(extendedHeaderBuffer);
break;
case JSON_REQKEY:
//not yet supported by ETAJ, ignore for now
break;
case JSON_COMPLETE:
isComplete = getBoolean(currentNode, key, error);
break;
case JSON_PARTNUMBER:
genericMsg.applyHasPartNum();
genericMsg.partNum(getInt(currentNode, key, error));
break;
case JSON_PERMDATA:
genericMsg.applyHasPermData();
permDataBuffer = JsonFactory.createBuffer();
decodeFromBase64(getText(currentNode, key, error), permDataBuffer, error);
if (error.isFailed())
break;
genericMsg.permData(permDataBuffer);
break;
case JSON_SEQNUM:
genericMsg.applyHasSeqNum();
genericMsg.seqNum(getLong(currentNode, key, error));
break;
case JSON_SECSEQNUM:
genericMsg.applyHasSecondarySeqNum();
genericMsg.secondarySeqNum(getLong(currentNode, key, error));
break;
case JSON_PROVIDER_DRIVEN:
genericMsg.applyProviderDriven();
break;
default:
processUnexpectedKey(key, error);
}
if (error.isFailed())
return;
}
if (!hasId)
error.setError(JsonConverterErrorCodes.JSON_ERROR_MISSING_KEY, JSON_ID);
if (isComplete)
genericMsg.applyMessageComplete();
} finally {
if (extendedHeaderBuffer != null)
JsonFactory.releaseBuffer(extendedHeaderBuffer);
if (permDataBuffer != null)
JsonFactory.releaseBuffer(permDataBuffer);
}
}
}