Type Members

1.  class ClientServerEventLogTransformer extends TraceTransformer

   add log events(if not present) using span.kind tag value

2.  class ClockSkewTransformer extends TraceTransformer

   Fixes clock skew between parent and child spans If any child spans reports a startTime earlier then parent span's startTime, corresponding delta will be added in the subtree with child span as root

   Fixes clock skew between parent and child spans If any child spans reports a startTime earlier then parent span's startTime, corresponding delta will be added in the subtree with child span as root

   addSkewInSubtree looks into each child of given subtreeRoot, calculates delta, and recursively applies delta in its subtree

3.  class DeDuplicateSpanTransformer extends TraceTransformer

   dedup the spans with the same span id

4.  class InvalidParentTransformer extends TraceTransformer

   If there are spans with invalid parentId in the trace, mark root to be their parentId

   If there are spans with invalid parentId in the trace, mark root to be their parentId

   **Apply this transformer only if you are not confident about clients sending in parentIds properly**

5.  class InvalidRootTransformer extends TraceTransformer

   If there are multiple roots in the given trace, use the first root based on startTime to be root mark other roots as children of the selected root If there is no root, assume loopback span or first span in time order to be root

   If there are multiple roots in the given trace, use the first root based on startTime to be root mark other roots as children of the selected root If there is no root, assume loopback span or first span in time order to be root

   **Apply this transformer only if you are not confident about clients sending in roots properly**

6.  class OrphanedTraceTransformer extends TraceTransformer
7.  class PartialSpanTransformer extends TraceTransformer

   Merges partial spans and generates a single Span combining a client and corresponding server span gracefully fallback to collapse to a single span if there are multiple or missing client/server spans

8.  class SortSpanTransformer extends TraceTransformer

   Orders spans in natural ordering - root followed by other spans ordered by start time

   Orders spans in natural ordering - root followed by other spans ordered by start time

   Assumes there is only one root in give spans List corresponding validations are done in com.expedia.www.haystack.trace.reader.readers.validators.RootValidator corresponding transformation are done in InvalidRootTransformer

9.  class TraceTransformationHandler extends AnyRef

   takes a sequence of TraceTransformer and apply transform functions on the chain

   takes a sequence of TraceTransformer and apply transform functions on the chain

   transformer functions takes Seq of Spans and generates a Seq of Spans TraceTransformationHandler takes a Seq of TraceTransformer and applies chaining on them, providing response List of a transformer to the next one

10.  trait TraceTransformer extends AnyRef