package org.jboss.as.clustering.jgroups.subsystem;

import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.ADD;

import org.jboss.as.controller.AttributeDefinition;
import org.jboss.as.controller.ObjectTypeAttributeDefinition;
import org.jboss.as.controller.OperationStepHandler;
import org.jboss.as.controller.PathElement;
import org.jboss.as.controller.ReloadRequiredWriteAttributeHandler;
import org.jboss.as.controller.SimpleAttributeDefinition;
import org.jboss.as.controller.SimpleAttributeDefinitionBuilder;
import org.jboss.as.controller.SimpleListAttributeDefinition;
import org.jboss.as.controller.SimpleResourceDefinition;
import org.jboss.as.controller.registry.AttributeAccess;
import org.jboss.as.controller.registry.ManagementResourceRegistration;
import org.jboss.dmr.ModelNode;
import org.jboss.dmr.ModelType;

import com.jboss.datagrid.server.common.OperationDefinition;
import com.jboss.datagrid.server.common.SimpleOperationDefinitionBuilder;

/**
 * Resource description for /subsystem=jgroups/stack=X/transport=TRANSPORT
 *
 * @author Richard Achmatowicz (c) 2011 Red Hat Inc.
 */

public class TransportResource extends SimpleResourceDefinition {

    static final PathElement TRANSPORT_PATH = PathElement.pathElement(ModelKeys.TRANSPORT, ModelKeys.TRANSPORT_NAME);

    // attributes
    static SimpleAttributeDefinition TYPE =
            new SimpleAttributeDefinitionBuilder(ModelKeys.TYPE, ModelType.STRING, false)
                    .setXmlName(Attribute.TYPE.getLocalName())
                    .setAllowExpression(false)
                    .setFlags(AttributeAccess.Flag.RESTART_ALL_SERVICES)
                    .build();

    static SimpleAttributeDefinition SHARED =
            new SimpleAttributeDefinitionBuilder(ModelKeys.SHARED, ModelType.BOOLEAN, true)
                    .setXmlName(Attribute.SHARED.getLocalName())
                    .setAllowExpression(false)
                    .setDefaultValue(new ModelNode().set(true))
                    .setFlags(AttributeAccess.Flag.RESTART_ALL_SERVICES)
                    .build();

    static SimpleAttributeDefinition SOCKET_BINDING =
            new SimpleAttributeDefinitionBuilder(ModelKeys.SOCKET_BINDING, ModelType.STRING, true)
                    .setXmlName(Attribute.SOCKET_BINDING.getLocalName())
                    .setAllowExpression(false)
                    .setFlags(AttributeAccess.Flag.RESTART_ALL_SERVICES)
                    .build();

    static SimpleAttributeDefinition DIAGNOSTICS_SOCKET_BINDING =
            new SimpleAttributeDefinitionBuilder(ModelKeys.DIAGNOSTICS_SOCKET_BINDING, ModelType.STRING, true)
                    .setXmlName(Attribute.DIAGNOSTICS_SOCKET_BINDING.getLocalName())
                    .setAllowExpression(false)
                    .setFlags(AttributeAccess.Flag.RESTART_ALL_SERVICES)
                    .build();

    static SimpleAttributeDefinition DEFAULT_EXECUTOR =
            new SimpleAttributeDefinitionBuilder(ModelKeys.DEFAULT_EXECUTOR, ModelType.STRING, true)
                    .setXmlName(Attribute.DEFAULT_EXECUTOR.getLocalName())
                    .setAllowExpression(false)
                    .setFlags(AttributeAccess.Flag.RESTART_ALL_SERVICES)
                    .build();

    static SimpleAttributeDefinition OOB_EXECUTOR =
            new SimpleAttributeDefinitionBuilder(ModelKeys.OOB_EXECUTOR, ModelType.STRING, true)
                    .setXmlName(Attribute.OOB_EXECUTOR.getLocalName())
                    .setAllowExpression(false)
                    .setFlags(AttributeAccess.Flag.RESTART_ALL_SERVICES)
                    .build();

    static SimpleAttributeDefinition TIMER_EXECUTOR =
            new SimpleAttributeDefinitionBuilder(ModelKeys.TIMER_EXECUTOR, ModelType.STRING, true)
                    .setXmlName(Attribute.TIMER_EXECUTOR.getLocalName())
                    .setAllowExpression(false)
                    .setFlags(AttributeAccess.Flag.RESTART_ALL_SERVICES)
                    .build();

    static SimpleAttributeDefinition THREAD_FACTORY =
            new SimpleAttributeDefinitionBuilder(ModelKeys.THREAD_FACTORY, ModelType.STRING, true)
                    .setXmlName(Attribute.THREAD_FACTORY.getLocalName())
                    .setAllowExpression(false)
                    .setFlags(AttributeAccess.Flag.RESTART_ALL_SERVICES)
                    .build();

    static SimpleAttributeDefinition SITE =
            new SimpleAttributeDefinitionBuilder(ModelKeys.SITE, ModelType.STRING, true)
                    .setXmlName(Attribute.SITE.getLocalName())
                    .setAllowExpression(true)
                    .setFlags(AttributeAccess.Flag.RESTART_ALL_SERVICES)
                    .build();

    static SimpleAttributeDefinition RACK =
            new SimpleAttributeDefinitionBuilder(ModelKeys.RACK, ModelType.STRING, true)
                    .setXmlName(Attribute.RACK.getLocalName())
                    .setAllowExpression(true)
                    .setFlags(AttributeAccess.Flag.RESTART_ALL_SERVICES)
                    .build();

    static SimpleAttributeDefinition MACHINE =
            new SimpleAttributeDefinitionBuilder(ModelKeys.MACHINE, ModelType.STRING, true)
                    .setXmlName(Attribute.MACHINE.getLocalName())
                    .setAllowExpression(true)
                    .setFlags(AttributeAccess.Flag.RESTART_ALL_SERVICES)
                    .build();

    static SimpleAttributeDefinition PROPERTY = new SimpleAttributeDefinition(ModelKeys.PROPERTY, ModelType.PROPERTY, true);

    static SimpleListAttributeDefinition PROPERTIES = new SimpleListAttributeDefinition.Builder(ModelKeys.PROPERTIES, PROPERTY).
            setAllowNull(true).
            build();

    // the list of attributes used by the transport resource
    static AttributeDefinition[] TRANSPORT_ATTRIBUTES = new AttributeDefinition[] {TYPE, SHARED, SOCKET_BINDING, DIAGNOSTICS_SOCKET_BINDING, DEFAULT_EXECUTOR,
            OOB_EXECUTOR, TIMER_EXECUTOR, THREAD_FACTORY, SITE, RACK, MACHINE};

    // the list of parameters accepted by a /subsystem=jgroups/stack=X/transport=TRANSPORT:add() operation
    static AttributeDefinition[] TRANSPORT_PARAMETERS = new AttributeDefinition[] {TYPE, SHARED, SOCKET_BINDING, DIAGNOSTICS_SOCKET_BINDING, DEFAULT_EXECUTOR,
            OOB_EXECUTOR, TIMER_EXECUTOR, THREAD_FACTORY, SITE, RACK, MACHINE, PROPERTIES};

    // representation of the type of a single operation parameter TRANSPORT of type OBJECT holding transport attributes
    // If this type is defined in a resource bundle with prefix X, the type descriptions
    // should be of the form X.transport.type, X.transport.shared, etc.
    static final ObjectTypeAttributeDefinition TRANSPORT = ObjectTypeAttributeDefinition.
                Builder.of(ModelKeys.TRANSPORT, TRANSPORT_ATTRIBUTES).
                setAllowNull(true).
                setSuffix(null).
                setSuffix("transport").
                build();

    // operations
    private static final OperationDefinition TRANSPORT_ADD_DEFINITION = new SimpleOperationDefinitionBuilder(ADD, JGroupsExtension.getResourceDescriptionResolver(ModelKeys.TRANSPORT))
        .setParameters(TRANSPORT_PARAMETERS)
        .build();

    static final OperationStepHandler TRANSPORT_ADD = new TransportLayerAdd(TRANSPORT_PARAMETERS);
    static final OperationStepHandler TRANSPORT_REMOVE = new TransportLayerRemove();
    static final TransportResource INSTANCE = new TransportResource();

    // registration
    TransportResource() {
        super(TRANSPORT_PATH,
                JGroupsExtension.getResourceDescriptionResolver(ModelKeys.TRANSPORT),
                null,  //we register it manualy in #  registerOperations
                TRANSPORT_REMOVE);
    }

    @Override
    public void registerOperations(ManagementResourceRegistration registration) {
        super.registerOperations(registration);
        registration.registerOperationHandler(TRANSPORT_ADD_DEFINITION.getName(), TRANSPORT_ADD, TRANSPORT_ADD_DEFINITION.getDescriptionProvider());
    }

    @Override
    public void registerAttributes(ManagementResourceRegistration resourceRegistration) {
        super.registerAttributes(resourceRegistration);

        final OperationStepHandler writeHandler = new ReloadRequiredWriteAttributeHandler(TRANSPORT_ATTRIBUTES);
        for (AttributeDefinition attr : TRANSPORT_ATTRIBUTES) {
            resourceRegistration.registerReadWriteAttribute(attr, null, writeHandler);
        }
    }

    @Override
    public void registerChildren(ManagementResourceRegistration resourceRegistration) {
        super.registerChildren(resourceRegistration);
        resourceRegistration.registerSubModel(PropertyResource.INSTANCE);
    }
}
