add an oom benchmark

Author: hmottestad

src/test/java/com/apicatalog/jsonld/benchmark/OOMBenchmark.java

@@ -0,0 +1,52 @@
+package com.apicatalog.jsonld.benchmark;
+
+import com.apicatalog.jsonld.JsonLdError;
+import com.apicatalog.jsonld.api.ToRdfApi;
+import com.apicatalog.jsonld.document.Document;
+import com.apicatalog.jsonld.loader.DocumentLoaderOptions;
+import com.apicatalog.jsonld.loader.FileLoader;
+import com.apicatalog.rdf.RdfDataset;
+import org.openjdk.jmh.annotations.Benchmark;
+import org.openjdk.jmh.annotations.BenchmarkMode;
+import org.openjdk.jmh.annotations.Fork;
+import org.openjdk.jmh.annotations.Level;
+import org.openjdk.jmh.annotations.Measurement;
+import org.openjdk.jmh.annotations.Mode;
+import org.openjdk.jmh.annotations.OutputTimeUnit;
+import org.openjdk.jmh.annotations.Scope;
+import org.openjdk.jmh.annotations.Setup;
+import org.openjdk.jmh.annotations.State;
+import org.openjdk.jmh.annotations.Warmup;
+
+import java.net.URISyntaxException;
+import java.net.URL;
+import java.util.concurrent.TimeUnit;
+
+@State(Scope.Benchmark)
+@Warmup(iterations = 0)
+@BenchmarkMode({Mode.AverageTime})
+@Fork(value = 1, jvmArgs = {"-Xms16G", "-Xmx16G", "-XX:+UnlockExperimentalVMOptions", "-XX:+UseEpsilonGC",
+        "-XX:+AlwaysPreTouch"})
+@Measurement(iterations = 99999999, time = 1, timeUnit = TimeUnit.MILLISECONDS)
+@OutputTimeUnit(TimeUnit.MILLISECONDS)
+/*
+ * This benchmark is used to test how many iterations we can run before running out of memory.
+ */
+public class OOMBenchmark {
+
+    Document document;
+
+    @Setup(Level.Invocation)
+    public void setUp() throws URISyntaxException, JsonLdError {
+        document = null;
+        URL fileUrl = getClass().getClassLoader().getResource("benchmark/datagovbe-valid.jsonld");
+        document = (new FileLoader()).loadDocument(fileUrl.toURI(), new DocumentLoaderOptions());
+    }
+
+    @Benchmark
+    public int toRdfApiGet() throws JsonLdError {
+        RdfDataset rdfDataset = new ToRdfApi(document).get();
+        return rdfDataset.size();
+    }
+
+}