Migrate IO subsystem to SubsystemResourceXMLSchema.

io/subsystem/src/main/java/org/wildfly/extension/io/BufferPoolResourceDefinition.java

@@ -103,7 +103,7 @@ class BufferPoolResourceDefinition extends PersistentResourceDefinition {
     );
 
     BufferPoolResourceDefinition() {
-        super(new SimpleResourceDefinition.Parameters(PATH, IOSubsystemRegistrar.RESOLVER.createChildResolver(PATH))
+        super(new SimpleResourceDefinition.Parameters(PATH, IOSubsystemResourceRegistrar.RESOLVER.createChildResolver(PATH))
                 .setAddHandler(new BufferPoolAdd())
                 .setRemoveHandler(ReloadRequiredRemoveStepHandler.INSTANCE)
                 .addCapabilities(IO_POOL_RUNTIME_CAPABILITY,

io/subsystem/src/main/java/org/wildfly/extension/io/IOExtension.java

@@ -17,6 +17,6 @@
 public class IOExtension extends SubsystemExtension<IOSubsystemSchema> {
 
     public IOExtension() {
-        super(SubsystemConfiguration.of(IOSubsystemRegistrar.NAME, IOSubsystemModel.CURRENT, IOSubsystemRegistrar::new), SubsystemPersistence.of(IOSubsystemSchema.CURRENT));
+        super(SubsystemConfiguration.of(IOSubsystemResourceDescription.INSTANCE, IOSubsystemModel.CURRENT, IOSubsystemResourceRegistrar::new), SubsystemPersistence.of(IOSubsystemSchema.CURRENT));
     }
 }

io/subsystem/src/main/java/org/wildfly/extension/io/IOExtensionTransformerRegistration.java

@@ -13,6 +13,6 @@
 public class IOExtensionTransformerRegistration extends SubsystemExtensionTransformerRegistration {
 
     public IOExtensionTransformerRegistration() {
-        super(IOSubsystemRegistrar.NAME, IOSubsystemModel.CURRENT, IOSubsystemTransformationDescriptionFactory.INSTANCE);
+        super(IOSubsystemResourceDescription.INSTANCE, IOSubsystemModel.CURRENT, IOSubsystemTransformationDescriptionFactory.INSTANCE);
     }
 }

io/subsystem/src/main/java/org/wildfly/extension/io/IOSubsystemResourceDescription.java

@@ -0,0 +1,39 @@
+/*
+ * Copyright The WildFly Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package org.wildfly.extension.io;
+
+import java.util.stream.Stream;
+
+import org.jboss.as.controller.AttributeDefinition;
+import org.jboss.as.controller.SubsystemResourceDescription;
+import org.jboss.as.controller.capability.RuntimeCapability;
+import org.wildfly.io.IOServiceDescriptor;
+import org.wildfly.subsystem.resource.capability.CapabilityReference;
+import org.wildfly.subsystem.resource.capability.CapabilityReferenceAttributeDefinition;
+import org.xnio.XnioWorker;
+
+/**
+ * Describes the IO subsystem resource.
+ */
+public enum IOSubsystemResourceDescription implements SubsystemResourceDescription {
+    INSTANCE;
+
+    static final RuntimeCapability<Void> DEFAULT_WORKER_CAPABILITY = RuntimeCapability.Builder.of(IOServiceDescriptor.DEFAULT_WORKER).build();
+
+    static final CapabilityReferenceAttributeDefinition<XnioWorker> DEFAULT_WORKER = new CapabilityReferenceAttributeDefinition.Builder<>("default-worker", CapabilityReference.builder(DEFAULT_WORKER_CAPABILITY, IOServiceDescriptor.NAMED_WORKER).build())
+            .setRequired(false)
+            .build();
+
+    @Override
+    public String getName() {
+        return "io";
+    }
+
+    @Override
+    public Stream<AttributeDefinition> getAttributes() {
+        return Stream.of(DEFAULT_WORKER);
+    }
+}

io/subsystem/src/main/java/org/wildfly/extension/io/IOSubsystemRegistrar.java → io/subsystem/src/main/java/org/wildfly/extension/io/IOSubsystemResourceRegistrar.java

@@ -11,9 +11,7 @@
 
 import org.jboss.as.controller.OperationContext;
 import org.jboss.as.controller.OperationFailedException;
-import org.jboss.as.controller.PathElement;
 import org.jboss.as.controller.ResourceDefinition;
-import org.jboss.as.controller.ResourceRegistration;
 import org.jboss.as.controller.SubsystemRegistration;
 import org.jboss.as.controller.capability.RuntimeCapability;
 import org.jboss.as.controller.descriptions.ParentResourceDescriptionResolver;
@@ -26,8 +24,6 @@
 import org.wildfly.subsystem.resource.ManagementResourceRegistrationContext;
 import org.wildfly.subsystem.resource.ResourceDescriptor;
 import org.wildfly.subsystem.resource.SubsystemResourceDefinitionRegistrar;
-import org.wildfly.subsystem.resource.capability.CapabilityReference;
-import org.wildfly.subsystem.resource.capability.CapabilityReferenceAttributeDefinition;
 import org.wildfly.subsystem.resource.operation.ResourceOperationRuntimeHandler;
 import org.wildfly.subsystem.service.ResourceServiceConfigurator;
 import org.wildfly.subsystem.service.ResourceServiceInstaller;
@@ -38,32 +34,24 @@
 /**
  * @author <a href="mailto:[email protected]">Tomaz Cerar</a> (c) 2013 Red Hat Inc.
  */
-class IOSubsystemRegistrar implements SubsystemResourceDefinitionRegistrar, ResourceServiceConfigurator {
+class IOSubsystemResourceRegistrar implements SubsystemResourceDefinitionRegistrar, ResourceServiceConfigurator {
 
-    static final String NAME = "io";
-    static final PathElement PATH = SubsystemResourceDefinitionRegistrar.pathElement(NAME);
-    static final ParentResourceDescriptionResolver RESOLVER = new SubsystemResourceDescriptionResolver(NAME, IOSubsystemRegistrar.class);
+    static final ParentResourceDescriptionResolver RESOLVER = new SubsystemResourceDescriptionResolver(IOSubsystemResourceDescription.INSTANCE.getName(), IOSubsystemResourceRegistrar.class);
 
     static final RuntimeCapability<Void> MAX_THREADS_CAPABILITY = RuntimeCapability.Builder.of(IOServiceDescriptor.MAX_THREADS).build();
 
-    static final RuntimeCapability<Void> DEFAULT_WORKER_CAPABILITY = RuntimeCapability.Builder.of(IOServiceDescriptor.DEFAULT_WORKER).build();
-
     static final ModelNode LEGACY_DEFAULT_WORKER = new ModelNode("default");
 
-    static final CapabilityReferenceAttributeDefinition<XnioWorker> DEFAULT_WORKER = new CapabilityReferenceAttributeDefinition.Builder<>("default-worker", CapabilityReference.builder(DEFAULT_WORKER_CAPABILITY, IOServiceDescriptor.NAMED_WORKER).build())
-            .setRequired(false)
-            .build();
-
     // Tracks max-threads for all workers
     private final AtomicInteger maxThreads = new AtomicInteger();
 
     @Override
     public ManagementResourceRegistration register(SubsystemRegistration parent, ManagementResourceRegistrationContext context) {
-        ManagementResourceRegistration registration = parent.registerSubsystemModel(ResourceDefinition.builder(ResourceRegistration.of(PATH), RESOLVER).build());
+        ManagementResourceRegistration registration = parent.registerSubsystemModel(ResourceDefinition.builder(IOSubsystemResourceDescription.INSTANCE, RESOLVER).build());
 
         ResourceDescriptor descriptor = ResourceDescriptor.builder(RESOLVER)
-                .addAttributes(List.of(DEFAULT_WORKER))
-                .addCapabilities(List.of(DEFAULT_WORKER_CAPABILITY, MAX_THREADS_CAPABILITY))
+                .addAttributes(IOSubsystemResourceDescription.INSTANCE.getAttributes().toList())
+                .addCapabilities(List.of(IOSubsystemResourceDescription.DEFAULT_WORKER_CAPABILITY, MAX_THREADS_CAPABILITY))
                 .withRuntimeHandler(ResourceOperationRuntimeHandler.configureParentService(this))
                 .build();
         ManagementResourceRegistrar.of(descriptor).register(registration);
@@ -82,9 +70,9 @@ public ResourceServiceInstaller configure(OperationContext context, ModelNode mo
         List<ResourceServiceInstaller> installers = new ArrayList<>(2);
         installers.add(CapabilityServiceInstaller.builder(MAX_THREADS_CAPABILITY, AtomicInteger::intValue, Functions.constantSupplier(this.maxThreads)).build());
 
-        ServiceDependency<XnioWorker> defaultWorker = DEFAULT_WORKER.resolve(context, model);
+        ServiceDependency<XnioWorker> defaultWorker = IOSubsystemResourceDescription.DEFAULT_WORKER.resolve(context, model);
         if (defaultWorker.isPresent()) {
-            installers.add(CapabilityServiceInstaller.builder(DEFAULT_WORKER_CAPABILITY, defaultWorker).build());
+            installers.add(CapabilityServiceInstaller.builder(IOSubsystemResourceDescription.DEFAULT_WORKER_CAPABILITY, defaultWorker).build());
         }
 
         return ResourceServiceInstaller.combine(installers);

io/subsystem/src/main/java/org/wildfly/extension/io/IOSubsystemSchema.java

@@ -6,22 +6,20 @@
 package org.wildfly.extension.io;
 
 import java.util.List;
-import java.util.function.Predicate;
-import java.util.stream.Stream;
+import java.util.function.UnaryOperator;
 
-import org.jboss.as.controller.PathAddress;
-import org.jboss.as.controller.PersistentResourceXMLDescription;
-import org.jboss.as.controller.PersistentSubsystemSchema;
+import org.jboss.as.controller.ResourceDescription;
 import org.jboss.as.controller.SubsystemSchema;
+import org.jboss.as.controller.persistence.xml.ResourceXMLElement;
+import org.jboss.as.controller.persistence.xml.SubsystemResourceXMLSchema;
 import org.jboss.as.controller.xml.VersionedNamespace;
 import org.jboss.dmr.ModelNode;
 import org.jboss.staxmapper.IntVersion;
-import org.wildfly.io.OptionAttributeDefinition;
 
 /**
  * Enumerates the supported schemas of the IO subsystem.
  */
-public enum IOSubsystemSchema implements PersistentSubsystemSchema<IOSubsystemSchema> {
+public enum IOSubsystemSchema implements SubsystemResourceXMLSchema<IOSubsystemSchema> {
     VERSION_1_1(1, 1), // WildFly 8.1 - 10.1
     VERSION_2_0(2, 0), // WildFly 11 - 12
     VERSION_3_0(3, 0), // WildFly 13 - 31
@@ -32,7 +30,7 @@ public enum IOSubsystemSchema implements PersistentSubsystemSchema<IOSubsystemSc
     private final VersionedNamespace<IntVersion, IOSubsystemSchema> namespace;
 
     IOSubsystemSchema(int major, int minor) {
-        this.namespace = SubsystemSchema.createLegacySubsystemURN(IOSubsystemRegistrar.NAME, new IntVersion(major, minor));
+        this.namespace = SubsystemSchema.createLegacySubsystemURN(IOSubsystemResourceDescription.INSTANCE.getName(), new IntVersion(major, minor));
     }
 
     @Override
@@ -41,32 +39,29 @@ public VersionedNamespace<IntVersion, IOSubsystemSchema> getNamespace() {
     }
 
     @Override
-    public PersistentResourceXMLDescription getXMLDescription() {
-        PersistentResourceXMLDescription.Factory factory = PersistentResourceXMLDescription.factory(this);
-        PersistentResourceXMLDescription.Builder builder = factory.builder(IOSubsystemRegistrar.PATH);
-        if (this.since(VERSION_4_0)) {
-            builder.addAttribute(IOSubsystemRegistrar.DEFAULT_WORKER);
-        } else {
-            builder.setAdditionalOperationsGenerator(new PersistentResourceXMLDescription.AdditionalOperationsGenerator() {
+    public ResourceXMLElement getSubsystemResourceXMLElement() {
+        ResourceXMLElement.Builder.Factory factory = ResourceXMLElement.Builder.Factory.newInstance(this);
+        ResourceXMLElement.Builder builder = factory.createBuilder(IOSubsystemResourceDescription.INSTANCE);
+        if (!this.since(VERSION_4_0)) {
+            builder.excludeAttribute(IOSubsystemResourceDescription.DEFAULT_WORKER);
+            builder.withOperationTransformation(new UnaryOperator<>() {
                 @Override
-                public void additionalOperations(PathAddress address, ModelNode addOperation, List<ModelNode> operations) {
+                public ModelNode apply(ModelNode operation) {
                     // Apply "magic" default worker referenced by other subsystems
-                    addOperation.get(IOSubsystemRegistrar.DEFAULT_WORKER.getName()).set(IOSubsystemRegistrar.LEGACY_DEFAULT_WORKER);
+                    operation.get(IOSubsystemResourceDescription.DEFAULT_WORKER.getName()).set(IOSubsystemResourceRegistrar.LEGACY_DEFAULT_WORKER);
+                    return operation;
                 }
             });
         }
-
-        Stream<OptionAttributeDefinition> workerAttributes = Stream.of(WorkerResourceDefinition.ATTRIBUTES);
+        ResourceXMLElement.Builder workerBuilder = factory.createBuilder(ResourceDescription.of(WorkerResourceDefinition.PATH, List.of(WorkerResourceDefinition.ATTRIBUTES)));
         if (!this.since(VERSION_3_0)) {
-            workerAttributes = workerAttributes.filter(Predicate.not(WorkerResourceDefinition.WORKER_TASK_CORE_THREADS::equals));
+            workerBuilder.excludeAttribute(WorkerResourceDefinition.WORKER_TASK_CORE_THREADS);
         }
-        PersistentResourceXMLDescription.Builder workerBuilder = factory.builder(WorkerResourceDefinition.PATH).addAttributes(workerAttributes);
         if (this.since(VERSION_2_0)) {
-            workerBuilder.addChild(factory.builder(OutboundBindAddressResourceDefinition.PATH).addAttributes(OutboundBindAddressResourceDefinition.ATTRIBUTES.stream()).build());
+            workerBuilder.addChild(factory.createBuilder(ResourceDescription.of(OutboundBindAddressResourceDefinition.PATH, OutboundBindAddressResourceDefinition.ATTRIBUTES)).build());
         }
-
         return builder.addChild(workerBuilder.build())
-                .addChild(factory.builder(BufferPoolResourceDefinition.PATH).addAttributes(BufferPoolResourceDefinition.ATTRIBUTES.stream()).build())
+                .addChild(factory.createBuilder(ResourceDescription.of(BufferPoolResourceDefinition.PATH, BufferPoolResourceDefinition.ATTRIBUTES)).build())
                 .build();
     }
 }

io/subsystem/src/main/java/org/wildfly/extension/io/IOSubsystemTransformationDescriptionFactory.java

@@ -25,8 +25,8 @@ public TransformationDescription apply(ModelVersion version) {
         ResourceTransformationDescriptionBuilder builder = TransformationDescriptionBuilder.Factory.createSubsystemInstance();
         if (IOSubsystemModel.VERSION_6_0_0.requiresTransformation(version)) {
             builder.getAttributeBuilder()
-                .setDiscard(new DiscardAttributeChecker.DiscardAttributeValueChecker(IOSubsystemRegistrar.LEGACY_DEFAULT_WORKER), IOSubsystemRegistrar.DEFAULT_WORKER)
-                .addRejectCheck(RejectAttributeChecker.DEFINED, IOSubsystemRegistrar.DEFAULT_WORKER)
+                .setDiscard(new DiscardAttributeChecker.DiscardAttributeValueChecker(IOSubsystemResourceRegistrar.LEGACY_DEFAULT_WORKER), IOSubsystemResourceDescription.DEFAULT_WORKER)
+                .addRejectCheck(RejectAttributeChecker.DEFINED, IOSubsystemResourceDescription.DEFAULT_WORKER)
                 .end();
         }
         return builder.build();

io/subsystem/src/main/java/org/wildfly/extension/io/OutboundBindAddressResourceDefinition.java

@@ -54,7 +54,7 @@ public class OutboundBindAddressResourceDefinition extends PersistentResourceDef
     static final OutboundBindAddressResourceDefinition INSTANCE = new OutboundBindAddressResourceDefinition();
 
     private OutboundBindAddressResourceDefinition() {
-        super(new SimpleResourceDefinition.Parameters(PATH, IOSubsystemRegistrar.RESOLVER.createChildResolver(PATH))
+        super(new SimpleResourceDefinition.Parameters(PATH, IOSubsystemResourceRegistrar.RESOLVER.createChildResolver(PATH))
             .setAddHandler(new OutboundBindAddressAddHandler())
             .setRemoveHandler(new OutboundBindAddressRemoveHandler())
         );

io/subsystem/src/main/java/org/wildfly/extension/io/WorkerResourceDefinition.java

@@ -101,7 +101,7 @@ class WorkerResourceDefinition extends PersistentResourceDefinition {
     private static final AttributeDefinition BUSY_WORKER_THREAD_COUNT = new SimpleAttributeDefinitionBuilder("busy-task-thread-count", ModelType.INT).build();
 
     WorkerResourceDefinition(AtomicInteger maxThreads) {
-        super(new SimpleResourceDefinition.Parameters(PATH, IOSubsystemRegistrar.RESOLVER.createChildResolver(PATH))
+        super(new SimpleResourceDefinition.Parameters(PATH, IOSubsystemResourceRegistrar.RESOLVER.createChildResolver(PATH))
                 .setAddHandler(new WorkerAdd(maxThreads))
                 .setRemoveHandler(ReloadRequiredRemoveStepHandler.INSTANCE)
                 .addCapabilities(CAPABILITY));

io/subsystem/src/main/java/org/wildfly/extension/io/WorkerServerDefinition.java

@@ -43,7 +43,7 @@ public class WorkerServerDefinition extends SimpleResourceDefinition {
     static final ModelNode NO_METRICS = new ModelNode(IOLogger.ROOT_LOGGER.noMetrics());
 
     WorkerServerDefinition() {
-        super(new Parameters(PATH, IOSubsystemRegistrar.RESOLVER.createChildResolver(PathElement.pathElement(WorkerResourceDefinition.PATH.getKey(), PATH.getKey())))
+        super(new Parameters(PATH, IOSubsystemResourceRegistrar.RESOLVER.createChildResolver(PathElement.pathElement(WorkerResourceDefinition.PATH.getKey(), PATH.getKey())))
                 .setRuntime());
     }
 

io/tests/src/test/java/org/wildfly/extension/io/IOSubsystemTestCase.java

@@ -45,7 +45,7 @@ public static Iterable<IOSubsystemSchema> parameters() {
     }
 
     public IOSubsystemTestCase(IOSubsystemSchema schema) {
-        super(IOSubsystemRegistrar.NAME, new IOExtension(), schema, IOSubsystemSchema.CURRENT);
+        super(IOSubsystemResourceDescription.INSTANCE.getName(), new IOExtension(), schema, IOSubsystemSchema.CURRENT);
     }
 
     @Test

io/tests/src/test/java/org/wildfly/extension/io/IOSubsystemTransformerTestCase.java

@@ -40,7 +40,7 @@ public static Iterable<ModelTestControllerVersion> parameters() {
     private final ModelVersion version;
 
     public IOSubsystemTransformerTestCase(ModelTestControllerVersion controller) {
-        super(IOSubsystemRegistrar.NAME, new IOExtension());
+        super(IOSubsystemResourceDescription.INSTANCE.getName(), new IOExtension());
         this.controller = controller;
         this.version = this.getModelVersion().getVersion();
         this.additionalInitialization = AdditionalInitialization.MANAGEMENT;
@@ -129,10 +129,10 @@ public void testRejections() throws Exception {
 
     private FailedOperationTransformationConfig createFailedOperationTransformationConfig() {
         FailedOperationTransformationConfig config = new FailedOperationTransformationConfig();
-        PathAddress subsystemAddress = PathAddress.pathAddress(IOSubsystemRegistrar.PATH);
+        PathAddress subsystemAddress = PathAddress.pathAddress(IOSubsystemResourceDescription.INSTANCE.getPathElement());
 
         if (IOSubsystemModel.VERSION_6_0_0.requiresTransformation(this.version)) {
-            config.addFailedAttribute(subsystemAddress, new FailedOperationTransformationConfig.NewAttributesConfig(IOSubsystemRegistrar.DEFAULT_WORKER.getName()));
+            config.addFailedAttribute(subsystemAddress, new FailedOperationTransformationConfig.NewAttributesConfig(IOSubsystemResourceDescription.DEFAULT_WORKER.getName()));
         }
 
         return config;