From 1ad0489b845f3486b19a81b2182bc34ab97eccec Mon Sep 17 00:00:00 2001
From: Inderjeet Singh <inder123@gmail.com>
Date: Tue, 25 Jan 2011 19:20:20 +0000
Subject: [PATCH] Initial version of Gson benchmark using Caliper

---
 metrics/pom.xml                               | 100 ++++++++++++++++++
 .../google/gson/metrics/BagOfPrimitives.java  |  95 +++++++++++++++++
 .../google/gson/metrics/GsonBenchmark.java    |  93 ++++++++++++++++
 3 files changed, 288 insertions(+)
 create mode 100644 metrics/pom.xml
 create mode 100644 metrics/src/main/java/com/google/gson/metrics/BagOfPrimitives.java
 create mode 100644 metrics/src/main/java/com/google/gson/metrics/GsonBenchmark.java

diff --git a/metrics/pom.xml b/metrics/pom.xml
new file mode 100644
index 00000000..a838a160
--- /dev/null
+++ b/metrics/pom.xml
@@ -0,0 +1,100 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>com.google.code.gson</groupId>
+  <artifactId>gson-metrics</artifactId>
+  <packaging>jar</packaging>
+  <version>1.0-SNAPSHOT</version>
+  <inceptionYear>2011</inceptionYear>
+  <name>Gson Metrics</name>
+  <parent>
+    <groupId>org.sonatype.oss</groupId>
+    <artifactId>oss-parent</artifactId>
+    <version>5</version>
+  </parent>
+  <url>http://code.google.com/p/google-gson/</url>
+  <description>Performance Metrics for Google Gson library</description>
+  <licenses>
+    <license>
+      <name>The Apache Software License, Version 2.0</name>
+      <url>http://www.apache.org/licenses/LICENSE-2.0.txt</url>
+      <distribution>repo</distribution>
+    </license>
+  </licenses>
+  <scm>
+    <connection>scm:svn:http://google-gson.googlecode.com/svn/trunk/metrics</connection>
+    <developerConnection>scm:svn:https://google-gson.googlecode.com/svn/trunk/metrics</developerConnection>
+    <url>http://google-gson.codegoogle.com/svn/trunk/metrics</url>
+  </scm>
+  <issueManagement>
+    <system>Google Code Issue Tracking</system>
+    <url>http://code.google.com/p/google-gson/issues/list</url>
+  </issueManagement>
+  <organization>
+    <name>Google, Inc.</name>
+    <url>http://www.google.com</url>
+  </organization>
+  <dependencies>
+    <dependency>
+      <groupId>com.google.code.gson</groupId>
+      <artifactId>gson</artifactId>
+      <version>1.7-SNAPSHOT</version>
+    </dependency>
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
+      <version>3.8.2</version>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+  <build>
+    <defaultGoal>package</defaultGoal>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-compiler-plugin</artifactId>
+        <version>2.3.2</version>
+        <configuration>
+          <source>1.5</source>
+          <target>1.5</target>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-eclipse-plugin</artifactId>
+        <version>2.8</version>
+        <configuration>
+          <downloadSources>true</downloadSources>
+          <downloadJavadocs>true</downloadJavadocs>
+          <workspace>../eclipse-ws/</workspace>
+          <workspaceCodeStylesURL>
+            file:///${basedir}/../lib/gson-formatting-styles.xml
+          </workspaceCodeStylesURL>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-release-plugin</artifactId>
+        <version>2.1</version>
+        <configuration>
+          <arguments>-DenableCiProfile=true</arguments>
+          <tagBase>https://google-gson.googlecode.com/svn/tags/</tagBase>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
+  <developers>
+    <developer>
+      <name>Inderjeet Singh</name>
+      <organization>Google Inc.</organization>
+    </developer>
+    <developer>
+      <name>Joel Leitch</name>
+      <organization>Google Inc.</organization>
+    </developer>
+    <developer>
+      <name>Jesse Wilson</name>
+      <organization>Google Inc.</organization>
+    </developer>
+  </developers>
+</project>
diff --git a/metrics/src/main/java/com/google/gson/metrics/BagOfPrimitives.java b/metrics/src/main/java/com/google/gson/metrics/BagOfPrimitives.java
new file mode 100644
index 00000000..72cd6b6d
--- /dev/null
+++ b/metrics/src/main/java/com/google/gson/metrics/BagOfPrimitives.java
@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2011 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.gson.metrics;
+
+/**
+ * Class with a bunch of primitive fields
+ *
+ * @author Inderjeet Singh
+ */
+public class BagOfPrimitives {
+  public static final long DEFAULT_VALUE = 0;
+  public long longValue;
+  public int intValue;
+  public boolean booleanValue;
+  public String stringValue;
+
+  public BagOfPrimitives() {
+    this(DEFAULT_VALUE, 0, false, "");
+  }
+
+  public BagOfPrimitives(long longValue, int intValue, boolean booleanValue, String stringValue) {
+    this.longValue = longValue;
+    this.intValue = intValue;
+    this.booleanValue = booleanValue;
+    this.stringValue = stringValue;
+  }
+
+  public int getIntValue() {
+    return intValue;
+  }
+
+  public String getExpectedJson() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("{");
+    sb.append("\"longValue\":").append(longValue).append(",");
+    sb.append("\"intValue\":").append(intValue).append(",");
+    sb.append("\"booleanValue\":").append(booleanValue).append(",");
+    sb.append("\"stringValue\":\"").append(stringValue).append("\"");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  @Override
+  public int hashCode() {
+    final int prime = 31;
+    int result = 1;
+    result = prime * result + (booleanValue ? 1231 : 1237);
+    result = prime * result + intValue;
+    result = prime * result + (int) (longValue ^ (longValue >>> 32));
+    result = prime * result + ((stringValue == null) ? 0 : stringValue.hashCode());
+    return result;
+  }
+
+  @Override
+  public boolean equals(Object obj) {
+    if (this == obj)
+      return true;
+    if (obj == null)
+      return false;
+    if (getClass() != obj.getClass())
+      return false;
+    BagOfPrimitives other = (BagOfPrimitives) obj;
+    if (booleanValue != other.booleanValue)
+      return false;
+    if (intValue != other.intValue)
+      return false;
+    if (longValue != other.longValue)
+      return false;
+    if (stringValue == null) {
+      if (other.stringValue != null)
+        return false;
+    } else if (!stringValue.equals(other.stringValue))
+      return false;
+    return true;
+  }
+
+  @Override
+  public String toString() {
+    return String.format("(longValue=%d,intValue=%d,booleanValue=%b,stringValue=%s)",
+        longValue, intValue, booleanValue, stringValue);
+  }
+}
diff --git a/metrics/src/main/java/com/google/gson/metrics/GsonBenchmark.java b/metrics/src/main/java/com/google/gson/metrics/GsonBenchmark.java
new file mode 100644
index 00000000..a8600da4
--- /dev/null
+++ b/metrics/src/main/java/com/google/gson/metrics/GsonBenchmark.java
@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) 2011 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.gson.metrics;
+
+import java.io.IOException;
+import java.io.StringReader;
+
+import com.google.caliper.Param;
+import com.google.caliper.Runner;
+import com.google.caliper.SimpleBenchmark;
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+import com.google.gson.stream.JsonReader;
+
+/**
+ * Caliper based micro benchmarks for Gson
+ *
+ * @author Inderjeet Singh
+ * @author Jesse Wilson
+ * @author Joel Leitch
+ */
+public class GsonBenchmark extends SimpleBenchmark {
+
+  private Gson gson;
+  private BagOfPrimitives bag;
+  private String json;
+  @Param
+  private boolean pretty;
+
+  public static void main(String[] args) {
+    Runner.main(GsonBenchmark.class, args);
+  }
+  
+  @Override
+  protected void setUp() throws Exception {
+    this.gson = pretty ? new GsonBuilder().setPrettyPrinting().create() : new Gson();
+    this.bag = new BagOfPrimitives(10L, 1, false, "foo");
+    this.json = gson.toJson(bag);
+  }
+
+  public void timeObjectSerialization(int reps) {
+    for (int i=0; i<reps; ++i) {
+      gson.toJson(bag);
+    }
+  }
+
+  public void timeObjectDeserialization(int reps) {
+    for (int i=0; i<reps; ++i) {
+      gson.fromJson(json, BagOfPrimitives.class);
+    }
+  }
+
+  public void timeStreamingParserDeserialization(int reps) throws IOException {
+    for (int i=0; i<reps; ++i) {
+      StringReader reader = new StringReader(json);
+      JsonReader jr = new JsonReader(reader);
+      jr.beginObject();
+      long longValue = 0;
+      int intValue = 0;
+      boolean booleanValue = false;
+      String stringValue = null;
+      while(jr.hasNext()) {
+        String name = jr.nextName();
+        if (name.equals("longValue")) {
+          longValue = jr.nextLong();
+        } else if (name.equals("intValue")) {
+          intValue = jr.nextInt();
+        } else if (name.equals("booleanValue")) {
+          booleanValue = jr.nextBoolean();
+        } else if (name.equals("stringValue")) {
+          stringValue = jr.nextString();
+        } else {
+          throw new IOException("Unexpected name: " + name);
+        }
+      }
+      jr.endObject();
+      new BagOfPrimitives(longValue, intValue, booleanValue, stringValue);
+    }
+  }
+}