1 files changed, 210 insertions, 0 deletions
diff --git a/benchmarks/java/src/main/java/com/google/protocolbuffers/ProtoBenchCaliper.java b/benchmarks/java/src/main/java/com/google/protocolbuffers/ProtoBenchCaliper.java
new file mode 100755
index 00000000..4045b56a
--- /dev/null
+++ b/benchmarks/java/src/main/java/com/google/protocolbuffers/ProtoBenchCaliper.java
@@ -0,0 +1,210 @@
+
+package com.google.protocolbuffers;
+
+import com.google.caliper.BeforeExperiment;
+import com.google.caliper.Benchmark;
+import com.google.caliper.Param;
+import com.google.protobuf.ByteString;
+import com.google.protobuf.CodedOutputStream;
+import com.google.protobuf.ExtensionRegistry;
+import com.google.protobuf.Message;
+import com.google.protobuf.benchmarks.Benchmarks.BenchmarkDataset;
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+
+public class ProtoBenchCaliper {
+  public enum BenchmarkMessageType {
+    GOOGLE_MESSAGE1_PROTO3 {
+      @Override ExtensionRegistry getExtensionRegistry() { return ExtensionRegistry.newInstance(); }
+      @Override
+      Message getDefaultInstance() {
+        return com.google.protobuf.benchmarks.BenchmarkMessage1Proto3.GoogleMessage1
+            .getDefaultInstance();
+      }
+      @Override String[] getSpecificCaliperOption() { return null; }
+    },
+    GOOGLE_MESSAGE1_PROTO2 {
+      @Override ExtensionRegistry getExtensionRegistry() { return ExtensionRegistry.newInstance(); }
+      @Override
+      Message getDefaultInstance() {
+        return com.google.protobuf.benchmarks.BenchmarkMessage1Proto2.GoogleMessage1
+            .getDefaultInstance();
+      }
+      @Override String[] getSpecificCaliperOption() { return null; }
+    },
+    GOOGLE_MESSAGE2 {
+      @Override ExtensionRegistry getExtensionRegistry() { return ExtensionRegistry.newInstance(); }
+      @Override
+      Message getDefaultInstance() {
+        return com.google.protobuf.benchmarks.BenchmarkMessage2.GoogleMessage2.getDefaultInstance();
+      }
+      @Override String[] getSpecificCaliperOption() { return null; }
+    },
+    GOOGLE_MESSAGE3 {
+      @Override
+      ExtensionRegistry getExtensionRegistry() {
+        ExtensionRegistry extensions = ExtensionRegistry.newInstance();
+        benchmarks.google_message3.BenchmarkMessage38.registerAllExtensions(extensions);
+        benchmarks.google_message3.BenchmarkMessage37.registerAllExtensions(extensions);
+        benchmarks.google_message3.BenchmarkMessage36.registerAllExtensions(extensions);
+        benchmarks.google_message3.BenchmarkMessage35.registerAllExtensions(extensions);
+        benchmarks.google_message3.BenchmarkMessage34.registerAllExtensions(extensions);
+        benchmarks.google_message3.BenchmarkMessage33.registerAllExtensions(extensions);
+        benchmarks.google_message3.BenchmarkMessage32.registerAllExtensions(extensions);
+        benchmarks.google_message3.BenchmarkMessage31.registerAllExtensions(extensions);
+        benchmarks.google_message3.BenchmarkMessage3.registerAllExtensions(extensions);
+        return extensions;
+      }
+      @Override
+      Message getDefaultInstance() {
+        return benchmarks.google_message3.BenchmarkMessage3.GoogleMessage3.getDefaultInstance();
+      }
+      @Override 
+      String[] getSpecificCaliperOption() { 
+        String[] opt = new String[1];
+        opt[0] = "-Cinstrument.runtime.options.timingInterval=3000ms";
+        return opt;
+      }
+    },
+    GOOGLE_MESSAGE4 {
+      @Override
+      ExtensionRegistry getExtensionRegistry() {
+        ExtensionRegistry extensions = ExtensionRegistry.newInstance();
+        benchmarks.google_message4.BenchmarkMessage43.registerAllExtensions(extensions);
+        benchmarks.google_message4.BenchmarkMessage42.registerAllExtensions(extensions);
+        benchmarks.google_message4.BenchmarkMessage41.registerAllExtensions(extensions);
+        benchmarks.google_message4.BenchmarkMessage4.registerAllExtensions(extensions);
+        return extensions;
+      }
+      @Override
+      Message getDefaultInstance() {
+        return benchmarks.google_message4.BenchmarkMessage4.GoogleMessage4.getDefaultInstance();
+      }
+      @Override 
+      String[] getSpecificCaliperOption() { 
+        String[] opt = new String[1];
+        opt[0] = "-Cinstrument.runtime.options.timingInterval=3000ms";
+        return opt;
+      }
+    };
+    
+    abstract ExtensionRegistry getExtensionRegistry();
+    abstract Message getDefaultInstance();
+    abstract String[] getSpecificCaliperOption();
+  }
+  
+  @Param 
+  private BenchmarkMessageType benchmarkMessageType;
+  @Param
+  private String dataFile;
+  
+  private byte[] inputData;
+  private BenchmarkDataset benchmarkDataset;
+  private Message defaultMessage;
+  private ExtensionRegistry extensions;
+  private List<byte[]> inputDataList;
+  private List<ByteArrayInputStream> inputStreamList;
+  private List<ByteString> inputStringList;
+  private List<Message> sampleMessageList;
+  private int counter;
+  private FileOutputStream devNull;
+  private CodedOutputStream reuseDevNull;
+  
+  @BeforeExperiment
+  void setUp() throws IOException {
+    inputData = ProtoBench.readAllBytes(dataFile);
+    benchmarkDataset = BenchmarkDataset.parseFrom(inputData);
+    defaultMessage = benchmarkMessageType.getDefaultInstance();
+    extensions = benchmarkMessageType.getExtensionRegistry();
+    inputDataList = new ArrayList<byte[]>();
+    inputStreamList = new ArrayList<ByteArrayInputStream>();
+    inputStringList = new ArrayList<ByteString>();
+    sampleMessageList = new ArrayList<Message>();
+    
+    for (int i = 0; i < benchmarkDataset.getPayloadCount(); i++) {
+      byte[] singleInputData = benchmarkDataset.getPayload(i).toByteArray();
+      inputDataList.add(benchmarkDataset.getPayload(i).toByteArray());
+      inputStreamList.add(new ByteArrayInputStream(
+          benchmarkDataset.getPayload(i).toByteArray()));
+      inputStringList.add(benchmarkDataset.getPayload(i));
+      sampleMessageList.add(
+          defaultMessage.newBuilderForType().mergeFrom(singleInputData, extensions).build());
+    }
+    devNull = null;
+    reuseDevNull = null;
+    
+    try {
+      devNull = new FileOutputStream("/dev/null");
+      reuseDevNull = CodedOutputStream.newInstance(devNull);
+    } catch (FileNotFoundException e) {
+      // ignore: this is probably Windows, where /dev/null does not exist
+    }
+    
+    counter = 0;
+  }
+  
+  
+  @Benchmark
+  void serializeToByteString(int reps) throws IOException {
+    for (int i = 0; i < reps; i++) {
+      sampleMessageList.get(counter % sampleMessageList.size()).toByteString();
+      counter++;
+    }
+  }
+  
+  @Benchmark
+  void serializeToByteArray(int reps) throws IOException {
+    for (int i = 0; i < reps; i++) {
+      sampleMessageList.get(counter % sampleMessageList.size()).toByteArray();
+      counter++;
+    }
+  }
+  
+  @Benchmark
+  void serializeToMemoryStream(int reps) throws IOException {
+    for (int i = 0; i < reps; i++) {
+      ByteArrayOutputStream output = new ByteArrayOutputStream();
+      sampleMessageList.get(counter % sampleMessageList.size()).writeTo(output);
+      counter++;
+    }
+  }
+  
+  @Benchmark
+  void deserializeFromByteString(int reps) throws IOException {
+    for (int i = 0; i < reps; i++) {
+      defaultMessage
+        .newBuilderForType()
+        .mergeFrom(inputStringList.get(counter % inputStringList.size()), extensions)
+        .build();
+      counter++;
+    }
+  }
+  
+  @Benchmark
+  void deserializeFromByteArray(int reps) throws IOException {
+    for (int i = 0; i < reps; i++) {
+      defaultMessage
+        .newBuilderForType()
+        .mergeFrom(inputDataList.get(counter % inputDataList.size()), extensions)
+        .build();
+      counter++;
+    }
+  }
+  
+  @Benchmark
+  void deserializeFromMemoryStream(int reps) throws IOException {
+    for (int i = 0; i < reps; i++) {
+      defaultMessage
+        .newBuilderForType()
+        .mergeFrom(inputStreamList.get(counter % inputStreamList.size()), extensions)
+        .build();
+      inputStreamList.get(counter % inputStreamList.size()).reset();
+      counter++;
+    }
+  }
+}