/**
* make the hbase filter for selecting values of y-axis(response time) in order to select
* transactions in scatter chart. 4 bytes for elapsed time should be attached for the prefix of
* column qualifier for to use this filter.
*
* @param area
* @param offsetTransactionId
* @param offsetTransactionElapsed
* @return
*/
private Filter makeResponseTimeFilter(
final SelectedScatterArea area,
final TransactionId offsetTransactionId,
int offsetTransactionElapsed) {
// filter by response time
ResponseTimeRange responseTimeRange = area.getResponseTimeRange();
byte[] responseFrom = Bytes.toBytes(responseTimeRange.getFrom());
byte[] responseTo = Bytes.toBytes(responseTimeRange.getTo());
FilterList filterList = new FilterList(Operator.MUST_PASS_ALL);
filterList.addFilter(
new QualifierFilter(CompareOp.GREATER_OR_EQUAL, new BinaryPrefixComparator(responseFrom)));
filterList.addFilter(
new QualifierFilter(CompareOp.LESS_OR_EQUAL, new BinaryPrefixComparator(responseTo)));
// add offset
if (offsetTransactionId != null) {
final Buffer buffer = new AutomaticBuffer(32);
buffer.put(offsetTransactionElapsed);
buffer.putPrefixedString(offsetTransactionId.getAgentId());
buffer.putSVar(offsetTransactionId.getAgentStartTime());
buffer.putVar(offsetTransactionId.getTransactionSequence());
byte[] qualifierOffset = buffer.getBuffer();
filterList.addFilter(
new QualifierFilter(CompareOp.GREATER, new BinaryPrefixComparator(qualifierOffset)));
}
return filterList;
}
public byte[] writeValue() {
final Buffer buffer = new AutomaticBuffer(512);
buffer.put(version);
// buffer.put(mostTraceID);
// buffer.put(leastTraceID);
buffer.putPrefixedString(agentId);
buffer.putPrefixedString(applicationId);
buffer.putVar(agentStartTime);
buffer.putVar(startElapsed);
buffer.putVar(endElapsed);
// don't need to put sequence because it is set at Qualifier
// buffer.put(sequence);
buffer.putPrefixedString(rpc);
buffer.put(serviceType);
buffer.putPrefixedString(endPoint);
buffer.putPrefixedString(destinationId);
buffer.putSVar(apiId);
buffer.putSVar(depth);
buffer.put(nextSpanId);
if (hasException) {
buffer.put(true);
buffer.putSVar(exceptionId);
buffer.putPrefixedString(exceptionMessage);
} else {
buffer.put(false);
}
writeAnnotation(buffer);
buffer.putSVar(nextAsyncId);
return buffer.getBuffer();
}