Add createSingletonService() to 32 test-infra service factories

Add a createSingletonService() method to all test-infra service
factories. These return a JVM-wide singleton instance backed by
SingletonService, which prevents duplicate container startups when
multiple test classes share the same service (especially useful for
parallel test execution via mvnd).

Each factory's singleton wrapper delegates all service-specific
interface methods to the underlying service instance.

Also change SingletonService.shutdown() from throwing
IllegalArgumentException to a debug-level no-op, since JUnit's
@RegisterExtension lifecycle calls shutdown() after each test class.
The actual cleanup happens via JVM shutdown hook.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: gnodet

components/camel-spring-parent/camel-spring-rabbitmq/src/test/java/org/apache/camel/component/springrabbit/test/infra/services/RabbitMQServiceFactory.java

@@ -26,4 +26,8 @@ private RabbitMQServiceFactory() {
     public static RabbitMQService createService() {
         return org.apache.camel.test.infra.rabbitmq.services.RabbitMQServiceFactory.createService();
     }
+
+    public static RabbitMQService createSingletonService() {
+        return org.apache.camel.test.infra.rabbitmq.services.RabbitMQServiceFactory.createSingletonService();
+    }
 }

test-infra/camel-test-infra-azure-storage-blob/src/main/java/org/apache/camel/test/infra/azure/storage/blob/services/AzureStorageBlobServiceFactory.java

@@ -17,10 +17,45 @@
 
 package org.apache.camel.test.infra.azure.storage.blob.services;
 
+import org.apache.camel.test.infra.azure.common.AzureCredentialsHolder;
 import org.apache.camel.test.infra.azure.common.services.AzureService;
 import org.apache.camel.test.infra.common.services.SimpleTestServiceBuilder;
+import org.apache.camel.test.infra.common.services.SingletonService;
 
 public final class AzureStorageBlobServiceFactory {
+
+    private static class SingletonAzureStorageBlobService extends SingletonService<AzureService>
+            implements AzureService {
+        public SingletonAzureStorageBlobService(AzureService service, String name) {
+            super(service, name);
+        }
+
+        @Override
+        public AzureCredentialsHolder azureCredentials() {
+            return getService().azureCredentials();
+        }
+
+        @Override
+        public String accountName() {
+            return getService().accountName();
+        }
+
+        @Override
+        public String accessKey() {
+            return getService().accessKey();
+        }
+
+        @Override
+        public String host() {
+            return getService().host();
+        }
+
+        @Override
+        public int port() {
+            return getService().port();
+        }
+    }
+
     private AzureStorageBlobServiceFactory() {
 
     }
@@ -36,6 +71,21 @@ public static AzureService createService() {
                 .build();
     }
 
+    public static AzureService createSingletonService() {
+        return SingletonServiceHolder.INSTANCE;
+    }
+
+    private static class SingletonServiceHolder {
+        static final AzureService INSTANCE;
+        static {
+            SimpleTestServiceBuilder<AzureService> instance = builder();
+            instance.addLocalMapping(
+                    () -> new SingletonAzureStorageBlobService(new AzureStorageBlobLocalContainerService(), "azure"))
+                    .addRemoteMapping(AzureStorageBlobRemoteService::new);
+            INSTANCE = instance.build();
+        }
+    }
+
     static class AzureStorageBlobLocalContainerService extends AzureStorageBlobLocalContainerInfraService
             implements AzureService {
     }

test-infra/camel-test-infra-azure-storage-datalake/src/main/java/org/apache/camel/test/infra/azure/storage/datalake/services/AzureStorageDataLakeServiceFactory.java

@@ -17,11 +17,45 @@
 
 package org.apache.camel.test.infra.azure.storage.datalake.services;
 
+import org.apache.camel.test.infra.azure.common.AzureCredentialsHolder;
 import org.apache.camel.test.infra.azure.common.services.AzureService;
 import org.apache.camel.test.infra.common.services.SimpleTestServiceBuilder;
+import org.apache.camel.test.infra.common.services.SingletonService;
 
 public final class AzureStorageDataLakeServiceFactory {
 
+    private static class SingletonAzureStorageDataLakeService extends SingletonService<AzureService>
+            implements AzureService {
+        public SingletonAzureStorageDataLakeService(AzureService service, String name) {
+            super(service, name);
+        }
+
+        @Override
+        public AzureCredentialsHolder azureCredentials() {
+            return getService().azureCredentials();
+        }
+
+        @Override
+        public String accountName() {
+            return getService().accountName();
+        }
+
+        @Override
+        public String accessKey() {
+            return getService().accessKey();
+        }
+
+        @Override
+        public String host() {
+            return getService().host();
+        }
+
+        @Override
+        public int port() {
+            return getService().port();
+        }
+    }
+
     private AzureStorageDataLakeServiceFactory() {
 
     }
@@ -36,6 +70,19 @@ public static AzureService createService() {
                 .build();
     }
 
+    public static AzureService createSingletonService() {
+        return SingletonServiceHolder.INSTANCE;
+    }
+
+    private static class SingletonServiceHolder {
+        static final AzureService INSTANCE;
+        static {
+            SimpleTestServiceBuilder<AzureService> instance = builder();
+            instance.addRemoteMapping(AzureStorageDataLakeRemoteService::new);
+            INSTANCE = instance.build();
+        }
+    }
+
     static class AzureStorageDataLakeRemoteService extends AzureStorageDataLakeRemoteInfraService implements AzureService {
     }
 }

test-infra/camel-test-infra-azure-storage-queue/src/main/java/org/apache/camel/test/infra/azure/storage/queue/services/AzureStorageQueueServiceFactory.java

@@ -17,10 +17,45 @@
 
 package org.apache.camel.test.infra.azure.storage.queue.services;
 
+import org.apache.camel.test.infra.azure.common.AzureCredentialsHolder;
 import org.apache.camel.test.infra.azure.common.services.AzureService;
 import org.apache.camel.test.infra.common.services.SimpleTestServiceBuilder;
+import org.apache.camel.test.infra.common.services.SingletonService;
 
 public final class AzureStorageQueueServiceFactory {
+
+    private static class SingletonAzureStorageQueueService extends SingletonService<AzureService>
+            implements AzureService {
+        public SingletonAzureStorageQueueService(AzureService service, String name) {
+            super(service, name);
+        }
+
+        @Override
+        public AzureCredentialsHolder azureCredentials() {
+            return getService().azureCredentials();
+        }
+
+        @Override
+        public String accountName() {
+            return getService().accountName();
+        }
+
+        @Override
+        public String accessKey() {
+            return getService().accessKey();
+        }
+
+        @Override
+        public String host() {
+            return getService().host();
+        }
+
+        @Override
+        public int port() {
+            return getService().port();
+        }
+    }
+
     private AzureStorageQueueServiceFactory() {
 
     }
@@ -36,6 +71,21 @@ public static AzureService createService() {
                 .build();
     }
 
+    public static AzureService createSingletonService() {
+        return SingletonServiceHolder.INSTANCE;
+    }
+
+    private static class SingletonServiceHolder {
+        static final AzureService INSTANCE;
+        static {
+            SimpleTestServiceBuilder<AzureService> instance = builder();
+            instance.addLocalMapping(
+                    () -> new SingletonAzureStorageQueueService(new AzureStorageQueueLocalContainerService(), "azure"))
+                    .addRemoteMapping(AzureStorageQueueRemoteService::new);
+            INSTANCE = instance.build();
+        }
+    }
+
     public static class AzureStorageQueueLocalContainerService extends AzureStorageQueueLocalContainerInfraService
             implements AzureService {
     }

test-infra/camel-test-infra-cassandra/src/main/java/org/apache/camel/test/infra/cassandra/services/CassandraServiceFactory.java

@@ -17,8 +17,36 @@
 package org.apache.camel.test.infra.cassandra.services;
 
 import org.apache.camel.test.infra.common.services.SimpleTestServiceBuilder;
+import org.apache.camel.test.infra.common.services.SingletonService;
 
 public final class CassandraServiceFactory {
+
+    private static class SingletonCassandraService extends SingletonService<CassandraService> implements CassandraService {
+        public SingletonCassandraService(CassandraService service, String name) {
+            super(service, name);
+        }
+
+        @Override
+        public int getCQL3Port() {
+            return getService().getCQL3Port();
+        }
+
+        @Override
+        public String getCassandraHost() {
+            return getService().getCassandraHost();
+        }
+
+        @Override
+        public String hosts() {
+            return getService().hosts();
+        }
+
+        @Override
+        public int port() {
+            return getService().port();
+        }
+    }
+
     private CassandraServiceFactory() {
 
     }
@@ -43,6 +71,21 @@ public static CassandraService createService() {
                 .build();
     }
 
+    public static CassandraService createSingletonService() {
+        return SingletonServiceHolder.INSTANCE;
+    }
+
+    private static class SingletonServiceHolder {
+        static final CassandraService INSTANCE;
+        static {
+            SimpleTestServiceBuilder<CassandraService> instance = builder();
+            instance.addLocalMapping(
+                    () -> new SingletonCassandraService(new CassandraLocalContainerService(), "cassandra"))
+                    .addRemoteMapping(RemoteCassandraService::new);
+            INSTANCE = instance.build();
+        }
+    }
+
     public static class RemoteCassandraService extends RemoteCassandraInfraService implements CassandraService {
     }
 }

test-infra/camel-test-infra-chatscript/src/main/java/org/apache/camel/test/infra/chatscript/services/ChatScriptServiceFactory.java

@@ -17,9 +17,22 @@
 package org.apache.camel.test.infra.chatscript.services;
 
 import org.apache.camel.test.infra.common.services.SimpleTestServiceBuilder;
+import org.apache.camel.test.infra.common.services.SingletonService;
 
 public final class ChatScriptServiceFactory {
 
+    private static class SingletonChatScriptService extends SingletonService<ChatScriptService>
+            implements ChatScriptService {
+        public SingletonChatScriptService(ChatScriptService service, String name) {
+            super(service, name);
+        }
+
+        @Override
+        public String serviceAddress() {
+            return getService().serviceAddress();
+        }
+    }
+
     private ChatScriptServiceFactory() {
 
     }
@@ -35,6 +48,21 @@ public static ChatScriptService createService() {
                 .build();
     }
 
+    public static ChatScriptService createSingletonService() {
+        return SingletonServiceHolder.INSTANCE;
+    }
+
+    private static class SingletonServiceHolder {
+        static final ChatScriptService INSTANCE;
+        static {
+            SimpleTestServiceBuilder<ChatScriptService> instance = builder();
+            instance.addLocalMapping(
+                    () -> new SingletonChatScriptService(new ChatScriptLocalContainerTestService(), "chatscript"))
+                    .addRemoteMapping(ChatScriptRemoteTestService::new);
+            INSTANCE = instance.build();
+        }
+    }
+
     public static class ChatScriptLocalContainerTestService extends ChatScriptLocalContainerInfraService
             implements ChatScriptService {
     }