benchmarks: add benchmark for ip address matcher

Motivation:
 - Benchmark IP matcher that used for processed of any NFS request.
 - enhancing JMH knowledge

Modification:
Add benchmark for ip address matcher.

Result:

Benchmark                                      (client)                 (template)   Mode  Cnt          Score         Error  Units
IpMatcherBenchmark.benchmark                192.168.1.1                192.168.1.1  thrpt   25  156536643.166 ± 3114973.363  ops/s
IpMatcherBenchmark.benchmark                192.168.1.1             192.168.1.0/24  thrpt   25  154687994.062 ± 5716679.866  ops/s
IpMatcherBenchmark.benchmark                192.168.1.1  fe80::9cef:10f5:f2ae:1aa1  thrpt   25  269111251.883 ± 6734146.251  ops/s
IpMatcherBenchmark.benchmark                192.168.5.1                192.168.1.1  thrpt   25  158110904.503 ± 1620381.437  ops/s
IpMatcherBenchmark.benchmark                192.168.5.1             192.168.1.0/24  thrpt   25  158561449.487 ± 1235704.889  ops/s
IpMatcherBenchmark.benchmark                192.168.5.1  fe80::9cef:10f5:f2ae:1aa1  thrpt   25  268281161.960 ± 7108881.055  ops/s
IpMatcherBenchmark.benchmark  fe80::9cef:10f5:f2ae:1aa1                192.168.1.1  thrpt   25   89801555.808 ± 2076211.604  ops/s
IpMatcherBenchmark.benchmark  fe80::9cef:10f5:f2ae:1aa1             192.168.1.0/24  thrpt   25   83486786.674 ± 2644654.536  ops/s
IpMatcherBenchmark.benchmark  fe80::9cef:10f5:f2ae:1aa1  fe80::9cef:10f5:f2ae:1aa1  thrpt   25   41586454.663 ± 1515126.298  ops/s

Acked-by: Paul Millar
Target: master

benchmarks/src/main/java/org/dcache/nfs/benchmarks/BenchmarkRunner.java

@@ -15,6 +15,7 @@ public class BenchmarkRunner {
     public static void main(String[] args) throws RunnerException {
         Options opt = new OptionsBuilder()
                 .include(ConcurrentLockManagerBenchmark.class.getSimpleName())
+                .include(IpMatcherBenchmark.class.getSimpleName())
                 .resultFormat(ResultFormatType.JSON)
                 .build();
 

benchmarks/src/main/java/org/dcache/nfs/benchmarks/IpMatcherBenchmark.java

@@ -0,0 +1,42 @@
+package org.dcache.nfs.benchmarks;
+
+import com.google.common.net.InetAddresses;
+import java.net.InetAddress;
+import java.net.UnknownHostException;
+import org.dcache.nfs.InetAddressMatcher;
+import org.openjdk.jmh.annotations.Benchmark;
+import org.openjdk.jmh.annotations.BenchmarkMode;
+import org.openjdk.jmh.annotations.Mode;
+import org.openjdk.jmh.annotations.Param;
+import org.openjdk.jmh.annotations.Scope;
+import org.openjdk.jmh.annotations.Setup;
+import org.openjdk.jmh.annotations.State;
+
+/**
+ *
+ */
+@State(Scope.Thread)
+@BenchmarkMode(Mode.Throughput)
+public class IpMatcherBenchmark {
+
+    private InetAddressMatcher addressMatcher;
+    private InetAddress address;
+
+    @Param({"192.168.1.1", "192.168.1.0/24", "fe80::9cef:10f5:f2ae:1aa1", "fe80::9cef:10f5:f2ae:1aa1/48"})
+    private String template;
+
+    @Param({"192.168.1.1", "192.168.5.1", "fe80::9cef:10f5:f2ae:1aa1", "fe80:cd00:0:cde:1257:0:211e:729c"})
+    private String client;
+
+    @Setup
+    public void setUp() throws UnknownHostException {
+        addressMatcher = InetAddressMatcher.forPattern(template);
+        address = InetAddresses.forString(client);
+    }
+
+    @Benchmark
+    public boolean benchmark() {
+        return addressMatcher.match(address);
+    }
+
+}