jreijn · fmcarvalho · Oct 27, 2022 · Nov 3, 2022
diff --git a/pom.xml b/pom.xml
@@ -4,7 +4,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.jeroenreijn</groupId>
     <artifactId>spring-comparing-template-engines</artifactId>
-    <packaging>war</packaging>
+    <packaging>jar</packaging>
     <version>0.8.0-SNAPSHOT</version>
     <name>template-engines</name>
 
@@ -40,6 +40,7 @@
         <liqp.version>0.7.9</liqp.version>
         <kotlin.version>1.7.20</kotlin.version>
         <kotlinx.html.version>0.8.0</kotlinx.html.version>
+        <jmh.version>1.35</jmh.version>
     </properties>
 
     <parent>
@@ -269,8 +270,23 @@
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-test</artifactId>
-            <scope>test</scope>
-        </dependency>
+            <!--Benchmarking should not be on test, however a mock is required for benchmarking -->
+			<!--spring-boot-starter-test only for benchmarking!-->
+            <!-- <scope>test</scope> -->
+        </dependency>
+
+        <!-- Benchmark -->
+		<dependency>
+			<groupId>org.openjdk.jmh</groupId>
+			<artifactId>jmh-core</artifactId>
+			<version>${jmh.version}</version>
+		</dependency>
+		<dependency>
+			<groupId>org.openjdk.jmh</groupId>
+			<artifactId>jmh-generator-annprocess</artifactId>
+			<version>${jmh.version}</version>
+			<scope>provided</scope>
+		</dependency>
 
     </dependencies>
 
@@ -324,7 +340,6 @@
                 <groupId>org.springframework.boot</groupId>
                 <artifactId>spring-boot-maven-plugin</artifactId>
             </plugin>
-
             <plugin>
                 <groupId>net.alchim31.maven</groupId>
                 <artifactId>scala-maven-plugin</artifactId>
@@ -355,6 +370,43 @@
                     </execution>
                 </executions>
             </plugin>
+
+            <plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-shade-plugin</artifactId>
+				<version>3.4.1</version>
+				<executions>
+					<execution>
+                        <id>shade-my-jar</id>
+						<phase>package</phase>
+						<goals>
+							<goal>shade</goal>
+						</goals>
+						<configuration>
+							<transformers>
+                                <transformer
+                                        implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
+                                    <mainClass>org.openjdk.jmh.Main</mainClass>
+                                </transformer>
+							</transformers>
+							<filters>
+								<filter>
+									<!--
+                                        Shading signed JARs will fail without this.
+                                        http://stackoverflow.com/questions/999489/invalid-signature-file-when-attempting-to-run-a-jar
+                                    -->
+									<artifact>*:*</artifact>
+									<excludes>
+										<exclude>META-INF/*.SF</exclude>
+										<exclude>META-INF/*.DSA</exclude>
+										<exclude>META-INF/*.RSA</exclude>
+									</excludes>
+								</filter>
+							</filters>
+						</configuration>
+					</execution>
+				</executions>
+			</plugin>
         </plugins>
 
         <pluginManagement>

diff --git a/src/main/java/com/jeroenreijn/examples/LaunchJMH.java b/src/main/java/com/jeroenreijn/examples/LaunchJMH.java
@@ -0,0 +1,154 @@
+package com.jeroenreijn.examples;
+
+import org.openjdk.jmh.annotations.Benchmark;
+import org.openjdk.jmh.annotations.BenchmarkMode;
+import org.openjdk.jmh.annotations.Level;
+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.TearDown;
+import org.springframework.boot.SpringApplication;
+import org.springframework.context.ConfigurableApplicationContext;
+import org.springframework.http.MediaType;
+import org.springframework.test.web.servlet.MockMvc;
+import org.springframework.test.web.servlet.ResultActions;
+import org.springframework.test.web.servlet.setup.MockMvcBuilders;
+import org.springframework.web.context.WebApplicationContext;
+
+import java.util.concurrent.TimeUnit;
+
+import static java.lang.String.format;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
+
+/**
+ * Some code on this class has been sampled from https://stackoverflow.com/a/41499972
+ */
+@BenchmarkMode(Mode.Throughput)
+@OutputTimeUnit(TimeUnit.SECONDS)
+@State(Scope.Thread)
+public class LaunchJMH {
+
+    static ConfigurableApplicationContext context;
+    static MockMvc mockMvc;
+
+    @Setup(Level.Trial)
+    public synchronized void startupSpring() {
+        try {
+            if (context == null) {
+                context = SpringApplication.run(Launch.class);
+                mockMvc = MockMvcBuilders
+                        .webAppContextSetup((WebApplicationContext) context)
+                        .build();
+            }
+        } catch (Exception e) {
+            //Force JMH crash
+            throw new RuntimeException(e);
+        }
+    }
+
+    @TearDown(Level.Trial)
+    public synchronized void shutdownSpring() {
+        try {
+            if (context != null) {
+                SpringApplication.exit(context);
+                context = null;
+            }
+        } catch (Exception e) {
+            //Force JMH crash
+            throw new RuntimeException(e);
+        }
+    }
+
+    private String benchmarkTemplate(String template) {
+        try {
+            ResultActions res = mockMvc.perform(
+                get(format("/%s", template))
+                    .accept(MediaType.ALL_VALUE)
+            );
+            return res.andReturn().getResponse().getContentAsString();
+        } catch (Exception e) {
+            //Force JMH crash
+            throw new RuntimeException(e);
+        }
+    }
+    @Benchmark
+    public String benchmarkChunk() {
+        return benchmarkTemplate("chunk");
+    }
+    @Benchmark
+    public String benchmarkFreemarker() {
+        return benchmarkTemplate("freemarker");
+    }
+    @Benchmark
+    public String benchmarkGroovy() {
+        return benchmarkTemplate("groovy");
+    }
+    @Benchmark
+    public String benchmarkHandlebars() {
+        return benchmarkTemplate("handlebars");
+    }
+    @Benchmark
+    public String benchmarkHtmlFlow() {
+        return benchmarkTemplate("htmlFlow");
+    }
+    @Benchmark
+    public String benchmarkHttl() {
+        return benchmarkTemplate("httl");
+    }
+        @Benchmark
+    public String benchmarkIckenham() {
+        return benchmarkTemplate("ickenham");
+    }
+    @Benchmark
+    public String benchmarkJade() {
+        return benchmarkTemplate("jade");
+    }
+    // Biased results because JSP resolver is not being invoked with MockMVC
+    // and it is always resolved with an empty view!!!!
+    @Benchmark
+    public String benchmarkJsp() {
+        return benchmarkTemplate("jsp");
+    }
+    @Benchmark
+    public String benchmarkKotlinxHtml() {
+        return benchmarkTemplate("kotlinx");
+    }
+    @Benchmark
+    public String benchmarkLiqp() {
+        return benchmarkTemplate("liqp");
+    }
+    @Benchmark
+    public String benchmarkMustache() {
+        return benchmarkTemplate("mustache");
+    }
+    @Benchmark
+    public String benchmarkPebble() {
+        return benchmarkTemplate("pebble");
+    }
+    @Benchmark
+    public String benchmarkRocker() {
+        return benchmarkTemplate("rocker");
+    }
+    @Benchmark
+    public String benchmarkRythm() {
+        return benchmarkTemplate("rythm");
+    }
+    @Benchmark
+    public String benchmarkScalate() {
+        return benchmarkTemplate("scalate");
+    }
+    @Benchmark
+    public String benchmarkThymeleaf() {
+        return benchmarkTemplate("thymeleaf");
+    }
+    @Benchmark
+    public String benchmarkTrimou() {
+        return benchmarkTemplate("trimou");
+    }
+    @Benchmark
+    public String benchmarkVelocity() {
+        return benchmarkTemplate("velocity");
+    }
+}
diff --git a/src/main/java/com/jeroenreijn/examples/configuration/WebMvcConfig.java b/src/main/java/com/jeroenreijn/examples/configuration/WebMvcConfig.java
@@ -45,7 +45,7 @@
 
 @Configuration
 @EnableWebMvc
-@ComponentScan(basePackages = { "com.jeroenreijn.examples.controller", "com.jeroenreijn.examples.factory" })
+@ComponentScan(basePackages = { "com.jeroenreijn.examples.controller", "com.jeroenreijn.examples" })
 public class WebMvcConfig implements ApplicationContextAware, WebMvcConfigurer {
 	private ApplicationContext applicationContext;
 

diff --git a/src/main/java/com/jeroenreijn/examples/view/KotlinxHtmlIndexView.kt b/src/main/java/com/jeroenreijn/examples/view/KotlinxHtmlIndexView.kt
@@ -10,13 +10,14 @@ class KotlinxHtmlIndexView {
         fun presentationsTemplate(presentations : Iterable<Presentation> ): String {
             val output = StringBuilder()
             output
+                .appendLine("<!DOCTYPE html>")
                 .appendHTML()
                     .html {
                         head {
                             meta {charset = "utf-8" }
                             meta {name = "viewport"; content = "width=device-width, initial-scale=1.0" }
-                            meta {httpEquiv=MetaHttpEquiv.contentLanguage; content="IE=Edge" }
-                            title { text("JFall 2013 Presentations - htmlApi")}
+                            meta {httpEquiv="x-ua-compatible"; content="IE=Edge" }
+                            title { text("JFall 2013 Presentations - kotlinx.html")}
                             link {rel=LinkRel.stylesheet; href="/webjars/bootstrap/4.3.1/css/bootstrap.min.css"; media = LinkMedia.screen;}
                         }
                         body {
@@ -32,7 +33,7 @@ class KotlinxHtmlIndexView {
                                         classes = setOf("card mb-3 shadow-sm rounded")
                                         div {
                                             classes = setOf("card-header")
-                                            h3 {
+                                            h5 {
                                                 classes = setOf("card-title")
                                                 text( it.title + " - " + it.speakerName)
                                             }

diff --git a/src/main/resources/templates/freemarker/includes.ftl b/src/main/resources/templates/freemarker/includes.ftl
@@ -5,7 +5,7 @@
   <meta name="viewport" content="width=device-width, initial-scale=1.0"/>
   <meta http-equiv="X-UA-Compatible" content="IE=Edge"/>
   <title>[@spring.message code="example.title"/] - Freemarker</title>
-  <link rel="stylesheet" href="${springMacroRequestContext.getContextPath()}/webjars/bootstrap/4.3.1/css/bootstrap.min.css" media="screen" />
+  <link rel="stylesheet" href="${springMacroRequestContext.getContextPath()}/webjars/bootstrap/4.3.1/css/bootstrap.min.css" media="screen"/>
 </head>
 [/#macro]
 

diff --git a/src/main/resources/templates/groovy/base.tpl b/src/main/resources/templates/groovy/base.tpl
@@ -1,5 +1,5 @@
 yieldUnescaped '<!DOCTYPE html>'
-html(lang:'en') {
+html {
   head {
     include template: 'head.tpl'
   }
@@ -11,7 +11,6 @@ html(lang:'en') {
 
 	  mainBody()
     }
+    include template: 'scripts.tpl'
   }
-
-  include template: 'scripts.tpl'
-}
+}
diff --git a/src/main/resources/templates/groovy/head.tpl b/src/main/resources/templates/groovy/head.tpl
@@ -1,4 +1,4 @@
-meta(charset: 'UTF8')
+meta(charset: 'UTF-8')
 meta(name: 'viewport', content: 'width=device-width, initial-scale=1.0')
 meta('http-equiv': 'X-UA-Compatible', 'content': 'IE=Edge')
 title(title)

diff --git a/src/main/resources/templates/httl/index-httl.httl b/src/main/resources/templates/httl/index-httl.httl
@@ -24,7 +24,7 @@
     </div>
     <!--#end-->
 </div>
-<script src=${contextPath}/webjars/jquery/3.1.1/jquery.min.js></script>
-<script src=${contextPath}/webjars/bootstrap/4.3.1/js/bootstrap.min.js></script>
+<script src="${contextPath}/webjars/jquery/3.1.1/jquery.min.js"></script>
+<script src="${contextPath}/webjars/bootstrap/4.3.1/js/bootstrap.min.js"></script>
 </body>
 </html>
diff --git a/src/main/resources/templates/trimou/head.trimou b/src/main/resources/templates/trimou/head.trimou
@@ -3,5 +3,5 @@
     <meta name="viewport" content="width=device-width, initial-scale=1.0"/>
     <meta http-equiv="X-UA-Compatible" content="IE=Edge"/>
     <title>{{springMsg "example.title" "Unknown i18n"}} - Trimou</title>
-    <link rel="stylesheet" href="/webjars/bootstrap/4.3.1/css/bootstrap.min.css"/>
+    <link rel="stylesheet" href="/webjars/bootstrap/4.3.1/css/bootstrap.min.css" media="screen"/>
 </head>
diff --git a/src/main/resources/templates/velocity/includes.vm b/src/main/resources/templates/velocity/includes.vm
@@ -4,7 +4,7 @@
     <meta name="viewport" content="width=device-width, initial-scale=1.0"/>
     <meta http-equiv="X-UA-Compatible" content="IE=Edge"/>
     <title>#springMessage("example.title") - Velocity</title>
-    <link rel="stylesheet" href="$link.relative("/webjars/bootstrap/4.3.1/css/bootstrap.min.css")" media="screen" />
+    <link rel="stylesheet" href="$link.relative("/webjars/bootstrap/4.3.1/css/bootstrap.min.css")" media="screen"/>
 </head>
 #end
 

diff --git a/src/main/resources/templates/velocity/index-velocity.vm b/src/main/resources/templates/velocity/index-velocity.vm
@@ -14,7 +14,7 @@
           </div>
       </div>
   #end
-  #scripts()
 </div>
+#scripts()
 </body>
-</html>
+</html>
diff --git a/src/main/webapp/WEB-INF/handlebars/head.hbs b/src/main/webapp/WEB-INF/handlebars/head.hbs
@@ -3,5 +3,5 @@
     <meta name="viewport" content="width=device-width, initial-scale=1.0"/>
     <meta http-equiv="X-UA-Compatible" content="IE=Edge"/>
     <title>{{i18n "example.title"}} - Handlebars</title>
-    <link rel="stylesheet" href="{{springMacroRequestContext.contextPath}}/webjars/bootstrap/4.3.1/css/bootstrap.min.css"/>
+    <link rel="stylesheet" href="{{springMacroRequestContext.contextPath}}/webjars/bootstrap/4.3.1/css/bootstrap.min.css" media="screen"/>
 </head>
diff --git a/src/main/webapp/WEB-INF/handlebars/presentation.hbs b/src/main/webapp/WEB-INF/handlebars/presentation.hbs
@@ -1,6 +1,6 @@
 <div class="card mb-3 shadow-sm rounded">
     <div class="card-header">
-        <h5 class="card-title">{{title}} - {{speakerName}}</h5>
+        <h5 class="card-title">{{{title}}} - {{speakerName}}</h5>
     </div>
     <div class="card-body">
         {{{summary}}}

diff --git a/src/main/webapp/WEB-INF/ickenham/head.hbs b/src/main/webapp/WEB-INF/ickenham/head.hbs
@@ -3,5 +3,5 @@
     <meta name="viewport" content="width=device-width, initial-scale=1.0"/>
     <meta http-equiv="X-UA-Compatible" content="IE=Edge"/>
     <title>{{i18n "example.title"}} - Ickenham</title>
-    <link rel="stylesheet" href="{{rc.contextPath}}/webjars/bootstrap/4.3.1/css/bootstrap.min.css"/>
+    <link rel="stylesheet" href="{{rc.contextPath}}/webjars/bootstrap/4.3.1/css/bootstrap.min.css" media="screen"/>
 </head>
diff --git a/src/main/webapp/WEB-INF/jade/layout.jade b/src/main/webapp/WEB-INF/jade/layout.jade
@@ -1,10 +1,11 @@
 doctype html
 html
   head
-    meta(name="charset", content="UTF-8")
-    title #{i18n.message("example.title")} - Jade4j
-    link(rel="stylesheet", href=springMacroRequestContext.contextPath + "/webjars/bootstrap/4.3.1/css/bootstrap.min.css")
+    meta(charset="UTF-8")
     meta(name="viewport", content="width=device-width, initial-scale=1.0")
+    meta(http-equiv="X-UA-Compatible", content="IE=Edge")
+    title #{i18n.message("example.title")} - Jade4j
+    link(rel="stylesheet", href=springMacroRequestContext.contextPath + "/webjars/bootstrap/4.3.1/css/bootstrap.min.css", media="screen")
   body
     .container
         .pb-2.mt-4.mb-3.border-bottom
-Original file line number
+Diff line change
@@ Expand Up / @@ -14,7 +14,7 @@ @@
               </div>
           </div>
       #end
-      #scripts()
     </div>
+    #scripts()
     </body>
-    </html>
+    </html>