# Copyright (C) 2019, Matthias Sohn <matthias.sohn@sap.com>
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# Definitions to run jmh microbenchmarks

load("@rules_java//java:defs.bzl", "java_binary", "java_plugin")

def jmh_java_benchmarks(name, srcs, deps = [], tags = [], plugins = [], **kwargs):
    """Builds runnable JMH benchmarks.
    This rule builds a runnable target for one or more JMH benchmarks
    specified as srcs. It takes the same arguments as java_binary,
    except for main_class.
    """
    plugin_name = "_{}_jmh_annotation_processor".format(name)
    java_plugin(
        name = plugin_name,
        deps = ["//lib/jmh:jmh"],
        processor_class = "org.openjdk.jmh.generators.BenchmarkProcessor",
        visibility = ["//visibility:private"],
        tags = tags,
    )
    java_binary(
        name = name,
        srcs = srcs,
        main_class = "org.openjdk.jmh.Main",
        deps = deps + ["//lib/jmh:jmh"],
        plugins = plugins + [plugin_name],
        tags = tags,
        **kwargs
    )