major: update to structurizr 2 and spring 3, migrate to java in order to reduce dependencies

build.gradle.kts

@@ -2,6 +2,7 @@ plugins {
     `maven-publish`
     id("io.github.gradle-nexus.publish-plugin") version "1.1.0"
     signing
+    `java-library`
 }
 
 description = "Spring Boot AutoConfigure Support for the Structurizr Client"
@@ -19,22 +20,26 @@ repositories {
 }
 
 dependencies {
-    api(platform(libs.spring.boot.bom))
-    kapt(platform(libs.spring.boot.bom))
+    implementation(platform(libs.spring.boot.bom))
+    annotationProcessor(platform(libs.spring.boot.bom))
 
     api(libs.structurizr.core)
-    api(libs.structurizr.client)
-
-    api(libs.structurizr.export.c4plantuml)
-    api(libs.architectureicons)
+    api(libs.structurizr.export)
+    implementation(libs.structurizr.client)
 
     // let that be an API dependency in order publish @SpringBootApplication
     api("org.springframework.boot:spring-boot-autoconfigure")
     runtimeOnly("org.springframework.boot:spring-boot-starter")
 
-    kapt("org.springframework.boot:spring-boot-configuration-processor")
     compileOnly("org.springframework.boot:spring-boot-configuration-processor")
     annotationProcessor("org.springframework.boot:spring-boot-configuration-processor")
+
+    testImplementation("org.springframework.boot:spring-boot-test")
+
+    testImplementation(platform(libs.junit.jupiter.bom))
+    testImplementation(libs.architectureicons)
+    testImplementation("org.junit.jupiter:junit-jupiter")
+    testRuntimeOnly("org.junit.platform:junit-platform-launcher")
 }
 
 java {

gradle/libs.versions.toml

@@ -1,15 +1,18 @@
 [versions]
 
-structurizr = "1.12.2"
-spring-boot = "2.7.1"
+structurizr = "2.2.0"
+spring-boot = "3.3.1"
+junit-jupiter = "5.10.3"
 
 
 [libraries]
 
 structurizr-core = { module = "com.structurizr:structurizr-core", version.ref = "structurizr" }
+structurizr-export = { module = "com.structurizr:structurizr-export", version.ref = "structurizr" }
 structurizr-client = { module = "com.structurizr:structurizr-client", version.ref = "structurizr" }
 
-structurizr-export-c4plantuml = { module = "io.cloudflight.structurizr:structurizr-export-c4plantuml", version = "1.0.0" }
 architectureicons = { module = "io.cloudflight.architectureicons:architectureicons", version = "0.3.0" }
 
 spring-boot-bom = { module = "org.springframework.boot:spring-boot-dependencies", version.ref = "spring-boot" }
+
+junit-jupiter-bom = { module = "org.junit:junit-bom", version.ref = "junit-jupiter" }

src/main/java/io/cloudflight/architecture/structurizr/ModelPostProcessor.java

@@ -0,0 +1,20 @@
+package io.cloudflight.architecture.structurizr;
+
+import com.structurizr.model.Model;
+
+import javax.annotation.Nonnull;
+
+/**
+ * Implementors of this interface will be called after all spring components have been initialized but before all implicit
+ * relationships are created and before all views are generated
+ *
+ * @author Klaus Lehner
+ */
+public interface ModelPostProcessor {
+    /**
+     * Do some action on the {@link Model} after the spring context has been initialized
+     *
+     * @param model the C4 Model
+     */
+    void postProcess(@Nonnull Model model);
+}

src/main/java/io/cloudflight/architecture/structurizr/SpringStructurizr.java

@@ -0,0 +1,28 @@
+package io.cloudflight.architecture.structurizr;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.boot.SpringApplication;
+import org.springframework.context.ConfigurableApplicationContext;
+
+/**
+ * Use this class as a starter method for your applications. It wraps SpringApplication and logs an error if there is one
+ *
+ * @author Klaus Lehner
+ */
+public final class SpringStructurizr {
+
+    private static final Logger LOG = LoggerFactory.getLogger(SpringStructurizr.class);
+
+    private SpringStructurizr() {
+    }
+
+    public static ConfigurableApplicationContext run(Class<?> architectureClass) {
+        try {
+            return SpringApplication.run(architectureClass);
+        } catch (Exception ex) {
+            LOG.error("Error at creating Structurizr model", ex);
+            throw ex;
+        }
+    }
+}

src/main/java/io/cloudflight/architecture/structurizr/ViewProvider.java

@@ -0,0 +1,25 @@
+package io.cloudflight.architecture.structurizr;
+
+import com.structurizr.view.ViewSet;
+
+import javax.annotation.Nonnull;
+
+/**
+ * Implement this interface if you want to create {@link com.structurizr.view.View}s for your {@link com.structurizr.model.Model}.
+ * The reason why this is done in a separate method is to ensure that all {@link org.springframework.stereotype.Component}s which
+ * might manipulate the model during startup phase have been initialized and that the {@link com.structurizr.model.Model} is complete.
+ *
+ * @author Klaus Lehner
+ */
+public interface ViewProvider {
+    /**
+     * <p>This method is called automatically after the whole {@link org.springframework.context.ApplicationContext} is refreshed,
+     * thus the {@link com.structurizr.model.Model} definition should be complete.</p>
+     *
+     * <p>Implementations of this method might create one or more {@link com.structurizr.view.View} inside this method</p>
+     *
+     * @param viewSet the {@link ViewSet} of the {@link com.structurizr.Workspace} after the whole {@link com.structurizr.model.Model}
+     * has been initialized
+     */
+    void createViews(@Nonnull ViewSet viewSet);
+}

src/main/java/io/cloudflight/architecture/structurizr/WorkspaceExportService.java

@@ -0,0 +1,10 @@
+package io.cloudflight.architecture.structurizr;
+
+import com.structurizr.Workspace;
+
+import javax.annotation.Nonnull;
+
+public interface WorkspaceExportService {
+
+    void exportWorkspace(@Nonnull Workspace workspace);
+}

src/main/java/io/cloudflight/architecture/structurizr/autoconfigure/StructurizrAutoConfiguration.java

@@ -0,0 +1,76 @@
+package io.cloudflight.architecture.structurizr.autoconfigure;
+
+import com.structurizr.Workspace;
+import com.structurizr.api.WorkspaceApiClient;
+import com.structurizr.encryption.AesEncryptionStrategy;
+import com.structurizr.model.CreateImpliedRelationshipsUnlessAnyRelationshipExistsStrategy;
+import com.structurizr.model.Model;
+import io.cloudflight.architecture.structurizr.internal.service.StructurizrService;
+import io.cloudflight.architecture.structurizr.internal.service.export.C4PlantUmlExportService;
+import io.cloudflight.architecture.structurizr.internal.service.export.StructurizrWorkspaceExportService;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
+import org.springframework.boot.context.properties.EnableConfigurationProperties;
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.context.annotation.Configuration;
+
+/**
+ * @author Klaus Lehner
+ */
+@Configuration
+@ComponentScan(basePackageClasses = StructurizrService.class)
+@EnableConfigurationProperties(value = StructurizrProperties.class)
+class StructurizrAutoConfiguration {
+
+    @Bean
+    StructurizrService structurizrService(Workspace workspace, ApplicationContext applicationContext) {
+        return new StructurizrService(workspace, applicationContext);
+    }
+
+    @Bean
+    Model model(Workspace workspace, StructurizrProperties properties) {
+        if (properties.workspace().isAddImplicitRelationships()) {
+            workspace.getModel().setImpliedRelationshipsStrategy(
+                    new CreateImpliedRelationshipsUnlessAnyRelationshipExistsStrategy());
+        }
+        return workspace.getModel();
+    }
+
+
+    @Bean
+    Workspace workspace(StructurizrProperties config) {
+        return new Workspace(config.workspace().name(), config.workspace().description());
+    }
+
+    @Configuration
+    @ConditionalOnProperty(value = "structurizr.export.structurizr.enabled", havingValue = "true")
+    class StructurizrExportConfiguration {
+        @Bean
+        WorkspaceApiClient structurizrClient(StructurizrProperties config) {
+            StructurizrProperties.StructurizrExport structurizr = config.export().structurizr();
+            WorkspaceApiClient structurizrClient = new WorkspaceApiClient(structurizr.url(), structurizr.key(), structurizr.secret());
+
+            // Add client-side encryption if configured
+            if (structurizr.encryptionPassphrase() != null) {
+                structurizrClient.setEncryptionStrategy(new AesEncryptionStrategy(structurizr.encryptionPassphrase()));
+            }
+            structurizrClient.setWorkspaceArchiveLocation(structurizr.workspaceArchiveLocation());
+            return structurizrClient;
+        }
+
+        @Bean
+        StructurizrWorkspaceExportService structurizrWorkspaceExporter(StructurizrProperties properties, WorkspaceApiClient client) {
+            return new StructurizrWorkspaceExportService(properties, client);
+        }
+    }
+
+    @Configuration
+    @ConditionalOnProperty(value = "structurizr.export.c4-plant-uml.enabled", havingValue = "true")
+    class C4PlantUmlExportConfiguration {
+        @Bean
+        C4PlantUmlExportService c4PlantUmlExportService(StructurizrProperties properties) {
+            return new C4PlantUmlExportService(properties);
+        }
+    }
+}

src/main/java/io/cloudflight/architecture/structurizr/autoconfigure/StructurizrProperties.java

@@ -0,0 +1,69 @@
+package io.cloudflight.architecture.structurizr.autoconfigure;
+
+import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.boot.context.properties.bind.DefaultValue;
+
+import java.io.File;
+
+/**
+ * Configuration properties for Structurizr.
+ *
+ * @author Klaus Lehner
+ */
+@ConfigurationProperties("structurizr")
+public record StructurizrProperties(Workspace workspace, Export export) {
+
+    public record Export(
+            StructurizrExport structurizr,
+            C4PlantUmlExport c4PlantUml
+    ) {
+    }
+
+    /**
+     * @param enabled                  if <code>true</code>, the workspace will be exported to a Structurizr server
+     * @param url                      the url of the Structurizr server, the default is <code>https://api.structurizr.com</code>
+     * @param id
+     * @param key                      Workspace API key
+     * @param secret                   Workspace API secret
+     * @param encryptionPassphrase     Workspace client-side encryption passphrase
+     * @param workspaceArchiveLocation Directory to use to archive workspaces.
+     */
+    public record StructurizrExport(
+            @DefaultValue("false")
+            boolean enabled,
+            @DefaultValue("https://api.structurizr.com")
+            String url,
+            @DefaultValue("0")
+            Long id,
+            String key,
+            String secret,
+            String encryptionPassphrase,
+            File workspaceArchiveLocation
+    ) {
+    }
+
+    /**
+     * @param enabled         if <code>true</code>, the Workspace will be exported using the PlantUML exporter
+     * @param outputDirectory
+     */
+    public record C4PlantUmlExport(
+            @DefaultValue("false")
+            boolean enabled,
+            @DefaultValue("build/c4PlantUml")
+            File outputDirectory
+    ) {
+    }
+
+    /**
+     * @param name                       workspace name
+     * @param description                workspace description
+     * @param isAddImplicitRelationships Propagates all relationships from children to their parents.
+     */
+    public record Workspace(
+            String name,
+            String description,
+            @DefaultValue("true")
+            boolean isAddImplicitRelationships
+    ) {
+    }
+}

src/main/java/io/cloudflight/architecture/structurizr/internal/service/StructurizrService.java

@@ -0,0 +1,46 @@
+package io.cloudflight.architecture.structurizr.internal.service;
+
+import com.structurizr.Workspace;
+import io.cloudflight.architecture.structurizr.ModelPostProcessor;
+import io.cloudflight.architecture.structurizr.ViewProvider;
+import io.cloudflight.architecture.structurizr.WorkspaceExportService;
+import org.springframework.boot.CommandLineRunner;
+import org.springframework.context.ApplicationContext;
+import org.springframework.core.annotation.AnnotationAwareOrderComparator;
+import org.springframework.core.annotation.Order;
+
+/**
+ * @author Klaus Lehner
+ */
+@Order(StructurizrService.ORDER)
+public class StructurizrService implements CommandLineRunner {
+
+    private final Workspace workspace;
+    private final ApplicationContext applicationContext;
+
+    static final int ORDER = 0;
+
+    public StructurizrService(Workspace workspace, ApplicationContext applicationContext) {
+        this.workspace = workspace;
+        this.applicationContext = applicationContext;
+    }
+
+    @Override
+    public void run(String... args) throws Exception {
+        applicationContext.getBeansOfType(ModelPostProcessor.class)
+                .values()
+                .stream()
+                .sorted(AnnotationAwareOrderComparator.INSTANCE)
+                .forEach(modelPostProcessor -> modelPostProcessor.postProcess(workspace.getModel()));
+
+        applicationContext.getBeansOfType(ViewProvider.class)
+                .values()
+                .forEach(viewProvider -> viewProvider.createViews(workspace.getViews()));
+
+        applicationContext.getBeansOfType(WorkspaceExportService.class)
+                .values()
+                .stream()
+                .sorted(AnnotationAwareOrderComparator.INSTANCE)
+                .forEach(exporter -> exporter.exportWorkspace(workspace));
+    }
+}