[bug#28841] [PATCH 01/24] gnu: Add java-hdrhistogram.

[julien@lepiller.eu]

From: Julien Lepiller <julien@lepiller.eu>

* gnu/packages/java.scm (java-hdrhistogram): New variable.
---
 gnu/packages/java.scm | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)

diff --git a/gnu/packages/java.scm b/gnu/packages/java.scm
index 95fba20e8..a36db179a 100644
--- a/gnu/packages/java.scm
+++ b/gnu/packages/java.scm
@@ -6020,3 +6020,41 @@ provides low-level abstractions (@code{JsonParser}, @code{JsonGenerator},
 @code{JsonFactory}) as well as small number of higher level overrides needed to
 make data-binding work.")
     (license license:asl2.0))); found on wiki.fasterxml.com/JacksonLicensing
+
+(define-public java-hdrhistogram
+  (package
+    (name "java-hdrhistogram")
+    (version "2.1.9")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "https://github.com/HdrHistogram/HdrHistogram/"
+                                  "archive/HdrHistogram-" version ".tar.gz"))
+              (sha256
+               (base32
+                "1sicbmc3sr42nw93qbkb26q9rn33ag33k6k77phjc3j5h5gjffqv"))))
+    (build-system ant-build-system)
+    (arguments
+     `(#:jar-name "java-hdrhistogram.jar"
+       #:source-dir "src/main/java"
+       #:phases
+       (modify-phases %standard-phases
+         (add-before 'configure 'set-version
+           (lambda _
+             (let* ((version-java "src/main/java/org/HdrHistogram/Version.java")
+                    (template (string-append version-java ".template")))
+               (copy-file template version-java)
+               (substitute* version-java
+                 (("\\$VERSION\\$") ,version)
+                 (("\\$BUILD_TIME\\$") "0"))))))))
+    (native-inputs
+     `(("junit" ,java-junit)
+       ("hamcrest" ,java-hamcrest-core)))
+    (home-page "https://hdrhistogram.github.io/HdrHistogram")
+    (synopsis "High Dynamic Range Histogram")
+    (description "Histogram that supports recording and analyzing sampled data
+value counts across a configurable integer value range with configurable value
+precision within the range.  Value precision is expressed as the number of
+significant digits in the value recording, and provides control over value
+quantization behavior across the value range and the subsequent value resolution
+at any given level.")
+    (license license:bsd-2)))
-- 
2.14.2