✨ Camel Spring Boot on Tomcat App/Product

fuse-products/src/main/java/software/tnb/product/ProductFactory.java

@@ -2,6 +2,8 @@
 
 import software.tnb.common.config.OpenshiftConfiguration;
 import software.tnb.common.config.TestConfiguration;
+import software.tnb.product.csb.TomcatCamelSpringBoot;
+import software.tnb.product.csb.configuration.SpringBootConfiguration;
 
 import java.util.Optional;
 import java.util.ServiceLoader;
@@ -28,6 +30,7 @@ public static Product create() {
     public static <P extends Product> P create(Class<P> clazz) {
         final Optional<Product> product = StreamSupport.stream(ServiceLoader.load(Product.class).spliterator(), false)
             .filter(p -> p.getClass().getSimpleName().toLowerCase().contains(TestConfiguration.product().getValue()))
+            .filter(p -> p instanceof TomcatCamelSpringBoot == SpringBootConfiguration.isTomcat())
             .filter(p -> p instanceof OpenshiftProduct == OpenshiftConfiguration.isOpenshift())
             .findFirst();
         if (product.isEmpty()) {

fuse-products/src/main/java/software/tnb/product/configuration/ProductConfiguration.java

@@ -4,12 +4,13 @@
 import software.tnb.common.config.TestConfiguration;
 import software.tnb.common.product.ProductType;
 import software.tnb.product.cq.configuration.QuarkusConfiguration;
+import software.tnb.product.csb.configuration.SpringBootConfiguration;
 
 public enum ProductConfiguration {
     ALL,
     QUARKUS, QUARKUS_JVM, QUARKUS_JVM_LOCAL, QUARKUS_JVM_OPENSHIFT, QUARKUS_NATIVE, QUARKUS_NATIVE_LOCAL, QUARKUS_NATIVE_OPENSHIFT,
     CAMEL_K,
-    SPRINGBOOT, SPRINGBOOT_JVM_LOCAL, SPRINGBOOT_JVM_OPENSHIFT;
+    SPRINGBOOT, SPRINGBOOT_JVM_LOCAL, SPRINGBOOT_JVM_OPENSHIFT, SPRINGBOOT_TOMCAT;
 
     public boolean isCurrentEnv() {
         return switch (this) {
@@ -33,6 +34,8 @@ public boolean isCurrentEnv() {
                 && !OpenshiftConfiguration.isOpenshift();
             case SPRINGBOOT_JVM_OPENSHIFT -> TestConfiguration.product() == ProductType.CAMEL_SPRINGBOOT
                 && OpenshiftConfiguration.isOpenshift();
+            case SPRINGBOOT_TOMCAT -> TestConfiguration.product() == ProductType.CAMEL_SPRINGBOOT
+                && SpringBootConfiguration.isTomcat();
             default -> true;
         };
     }

fuse-products/src/main/java/software/tnb/product/csb/TomcatCamelSpringBoot.java

@@ -0,0 +1,31 @@
+package software.tnb.product.csb;
+
+import software.tnb.product.LocalProduct;
+import software.tnb.product.Product;
+import software.tnb.product.application.App;
+import software.tnb.product.csb.application.TomcatSpringBootApp;
+import software.tnb.product.integration.builder.AbstractIntegrationBuilder;
+
+import com.google.auto.service.AutoService;
+
+@AutoService(Product.class)
+public class TomcatCamelSpringBoot extends LocalProduct {
+
+    private TomcatSpringBootApp app;
+
+    @Override
+    public App createIntegrationApp(AbstractIntegrationBuilder<?> integrationBuilder) {
+        app = new TomcatSpringBootApp(integrationBuilder);
+        return app;
+    }
+
+    @Override
+    public void setupProduct() {
+        super.setupProduct();
+    }
+
+    @Override
+    public void teardownProduct() {
+        app.stop();
+    }
+}

fuse-products/src/main/java/software/tnb/product/csb/application/TomcatSpringBootApp.java

@@ -0,0 +1,233 @@
+package software.tnb.product.csb.application;
+
+import software.tnb.common.config.TestConfiguration;
+import software.tnb.product.application.App;
+import software.tnb.product.application.Phase;
+import software.tnb.product.csb.configuration.SpringBootConfiguration;
+import software.tnb.product.customizer.Customizer;
+import software.tnb.product.customizer.component.rest.RestCustomizer;
+import software.tnb.product.integration.builder.AbstractIntegrationBuilder;
+import software.tnb.product.log.FileLog;
+import software.tnb.product.log.Log;
+import software.tnb.product.log.stream.LogStream;
+import software.tnb.product.util.ZipUtils;
+import software.tnb.product.util.maven.BuildRequest;
+import software.tnb.product.util.maven.Maven;
+
+import org.apache.commons.io.FileUtils;
+import org.apache.maven.model.Dependency;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.File;
+import java.io.IOException;
+import java.net.URL;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
+
+public class TomcatSpringBootApp extends App {
+    private static final Logger LOG = LoggerFactory.getLogger(TomcatSpringBootApp.class);
+
+    private AbstractIntegrationBuilder<?> integrationBuilder;
+    private Path tomcatTmpDirectory;
+    private Path tomcatHome = null;
+    private Process tomcatProcess = null;
+    private static final String TOMCAT_PARENT_DIRECTORY = "tomcat";
+    private static final String TOMCAT_ARCHIVE_NAME = "tomcat-archive.zip";
+
+    @Override
+    public Log getLog() {
+        return new FileLog(getLogPath());
+    }
+
+    public TomcatSpringBootApp(AbstractIntegrationBuilder<?> integrationBuilder) {
+        super(integrationBuilder.getIntegrationName());
+
+        downloadTomcat();
+
+        this.integrationBuilder = integrationBuilder;
+    }
+
+    private void startTomcat() {
+        File[] file = tomcatTmpDirectory.resolve(TOMCAT_PARENT_DIRECTORY).toFile().listFiles();
+        for (File f : file) {
+            if (f.isDirectory()) {
+                if (f.getName().contains("apache-tomcat")) {
+                    tomcatHome = f.toPath();
+                } else if (f.getName().contains("jws")) {
+                    tomcatHome = f.toPath().resolve("tomcat"); // Case JWS
+                }
+            }
+        }
+
+        if (tomcatHome == null) {
+            throw new RuntimeException("Could not find Tomcat home in " + tomcatTmpDirectory.resolve(TOMCAT_PARENT_DIRECTORY));
+        }
+
+        Path logFile = getLogPath();
+        // startup.sh starts on another process, let's use catalina run so that we can control the lifecyle
+        ProcessBuilder processBuilder = new ProcessBuilder(tomcatHome + File.separator + "bin" + File.separator + "catalina.sh", "run")
+            .redirectError(logFile.toFile())
+            .redirectOutput(logFile.toFile());
+
+        try {
+            tomcatProcess = processBuilder.start();
+            Runtime.getRuntime().addShutdownHook(new Thread(() -> {
+                if (tomcatProcess != null) {
+                    tomcatProcess.destroyForcibly();
+                }
+            }));
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+
+        LOG.info("Starting tomcat in {}", tomcatHome);
+    }
+
+    private void downloadTomcat() {
+        try {
+            tomcatTmpDirectory = Files.createTempDirectory("tnb-tomcat");
+            LOG.info("Downloading tomcat in {}", tomcatTmpDirectory);
+            FileUtils.copyURLToFile(new URL(SpringBootConfiguration.tomcatZipUrl()), tomcatTmpDirectory.resolve(TOMCAT_ARCHIVE_NAME).toFile());
+
+            ZipUtils.unzip(tomcatTmpDirectory.resolve(TOMCAT_ARCHIVE_NAME), tomcatTmpDirectory.resolve(TOMCAT_PARENT_DIRECTORY));
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    @Override
+    public void start() {
+        startTomcat();
+
+        // Let's remove restcustomizer, since it exclude tomcat
+        List<Customizer> customizers = integrationBuilder.getCustomizers()
+                .stream().filter(customizer -> customizer instanceof RestCustomizer)
+                .collect(Collectors.toList());
+        integrationBuilder.getCustomizers().remove(customizers);
+
+        // spring web is needed and tomcat is provided
+        Dependency providedTomcatDependency = new Dependency();
+        providedTomcatDependency.setArtifactId("spring-boot-starter-tomcat");
+        providedTomcatDependency.setGroupId("org.springframework.boot");
+        providedTomcatDependency.setScope("provided");
+
+        integrationBuilder.dependencies(
+            Maven.createDependency("org.springframework.boot:spring-boot-starter-web"),
+            providedTomcatDependency);
+
+        // Create the integration
+        new SpringBootApp(integrationBuilder) {
+            @Override
+            public void start() {
+                // We just need the application to be generated, not run
+            }
+
+            @Override
+            public void stop() {
+                // do nothing
+            }
+
+            @Override
+            public boolean isReady() {
+                return true;
+            }
+
+            @Override
+            public boolean isFailed() {
+                return false;
+            }
+        }.start();
+
+        // replace packaging and extend SpringBootServletInitializer
+        try {
+            Path pomPath = TestConfiguration.appLocation().resolve(name).resolve("pom.xml");
+            String pom = Files.readString(pomPath);
+            pom = pom.replace("<artifactId>" + name + "</artifactId>",
+                "<artifactId>" + name + "</artifactId><packaging>war</packaging>");
+            Files.write(pomPath, pom.getBytes(StandardCharsets.UTF_8));
+
+            Path mainPath = TestConfiguration.appLocation().resolve(name)
+                .resolve("src")
+                .resolve("main")
+                .resolve("java")
+                .resolve("com")
+                .resolve("test")
+                .resolve("MySpringBootApplication.java");
+            String main = Files.readString(mainPath);
+
+            main = main.replace("class MySpringBootApplication {",
+                """
+                    class MySpringBootApplication extends org.springframework.boot.web.servlet.support.SpringBootServletInitializer {
+
+                        @Override
+                        protected org.springframework.boot.builder.SpringApplicationBuilder 
+                                configure(org.springframework.boot.builder.SpringApplicationBuilder application) {
+                            return application.sources(MySpringBootApplication.class);
+                        }
+                    """);
+            Files.write(mainPath, main.getBytes(StandardCharsets.UTF_8));
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+
+        // package application
+        BuildRequest.Builder requestBuilder = new BuildRequest.Builder()
+            .withBaseDirectory(TestConfiguration.appLocation().resolve(name))
+            .withGoals("clean", "package")
+            .withProperties(Map.of(
+                "skipTests", "true"
+            ))
+            .withLogFile(getLogPath(Phase.BUILD))
+            .withLogMarker(LogStream.marker(name, Phase.BUILD));
+
+        LOG.info("Building {} application project for tomcat", name);
+        Maven.invoke(requestBuilder.build());
+
+        // copy generated WAR in tomcat
+        String warName = name + "-1.0.0-SNAPSHOT.war";
+        try {
+            Files.copy(TestConfiguration.appLocation().resolve(name).resolve("target").resolve(warName),
+                tomcatHome.resolve("webapps").resolve(warName));
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    @Override
+    public void stop() {
+        if (logStream != null) {
+            logStream.stop();
+        }
+
+        if (log != null) {
+            log.save();
+        }
+
+        if (tomcatProcess != null) {
+            try {
+                Process shutdown = new ProcessBuilder(tomcatHome + File.separator + "bin" + File.separator + "shutdown.sh")
+                    .start();
+                shutdown.waitFor();
+
+                tomcatProcess.destroyForcibly();
+            } catch (IOException | InterruptedException e) {
+                throw new RuntimeException(e);
+            }
+        }
+    }
+
+    @Override
+    public boolean isReady() {
+        return tomcatProcess != null && tomcatProcess.isAlive();
+    }
+
+    @Override
+    public boolean isFailed() {
+        return tomcatProcess != null && !tomcatProcess.isAlive();
+    }
+}

fuse-products/src/main/java/software/tnb/product/csb/configuration/SpringBootConfiguration.java

@@ -31,6 +31,9 @@ public class SpringBootConfiguration extends CamelConfiguration {
 
     public static final String OPENSHIFT_SB_RESULT_IMAGE_REPOSITORY = "openshift-sb.result-image.repo";
 
+    public static final String TOMCAT_ZIP_DOWNLOAD_URL = "tomcat.zip.download.url";
+    public static final String USE_TOMCAT = "test.use.tomcat";
+
     public static String springBootVersion() {
         return getProperty(SPRINGBOOT_VERSION, "2.6.1");
     }
@@ -104,4 +107,12 @@ public static String openshiftBaseImage() {
     public static String openshiftResultImageRepository() {
         return getProperty(OPENSHIFT_SB_RESULT_IMAGE_REPOSITORY);
     }
+
+    public static String tomcatZipUrl() {
+        return getProperty(TOMCAT_ZIP_DOWNLOAD_URL, "https://dlcdn.apache.org/tomcat/tomcat-10/v10.1.23/bin/apache-tomcat-10.1.23.zip");
+    }
+
+    public static boolean isTomcat() {
+        return getBoolean(USE_TOMCAT, false);
+    }
 }