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Managing spans with annotations (#526)

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The main arguments for these features are

* api-agnostic means to collaborate with a span
    - use of annotations allows users to add to a span with no library dependency on a span api.
    This allows Sleuth to change its core api less impact to user code.
* reduced surface area for basic span operations.
    - without this feature one has to use the span api, which has lifecycle commands that
    could be used incorrectly. By only exposing scope, tag and log functionality, users can
    collaborate without accidentally breaking span lifecycle.
* collaboration with runtime generated code
    - with libraries such as Spring Data / Feign the implementations of interfaces are generated
    at runtime thus span wrapping of objects was tedious. Now you can provide annotations
     over interfaces and arguments of those interfaces

This PR is an adoption of @Koizumi85 work started here - https://github.com/Koizumi85/spring-cloud-sleuth-annotation

fixes #182
This commit is contained in:
Marcin Grzejszczak
2017-02-27 15:26:03 +01:00
committed by GitHub
parent b7659ede11
commit 0f29735c11
34 changed files with 2273 additions and 7 deletions
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2
scripts/runJmhBenchmarks.sh
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@@ -2,4 +2,4 @@
echo "Running JMH Benchmarks"
./mvnw clean install -DskipTests --projects benchmarks --also-make -Pbenchmarks,jmh
java -Djmh.ignoreLock=true -jar benchmarks/target/benchmarks.jar org.springframework.cloud.sleuth.benchmarks.jmh.* | tee target/benchmarks.log
java -Djmh.ignoreLock=true -jar benchmarks/target/benchmarks.jar org.springframework.cloud.sleuth.benchmarks.jmh.* -rf csv -rff target/jmh-result.csv | tee target/benchmarks.log