/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2012, Red Hat, Inc., and individual contributors
 * as indicated by the @author tags. See the copyright.txt file in the
 * distribution for a full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

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

import org.jboss.as.controller.AttributeDefinition;
import org.jboss.as.controller.ObjectListAttributeDefinition;
import org.jboss.as.controller.ObjectTypeAttributeDefinition;
import org.jboss.as.controller.OperationDefinition;
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.SimpleOperationDefinitionBuilder;
import org.jboss.as.controller.SimpleResourceDefinition;
import org.jboss.as.controller.access.management.SensitiveTargetAccessConstraintDefinition;
import org.jboss.as.controller.registry.AttributeAccess;
import org.jboss.as.controller.registry.ManagementResourceRegistration;
import org.jboss.dmr.ModelType;

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

public class ProtocolResourceDefinition extends SimpleResourceDefinition {

    static final PathElement PROTOCOL_PATH = PathElement.pathElement(ModelKeys.PROTOCOL);
    static final ProtocolResourceDefinition INSTANCE = new ProtocolResourceDefinition();

    // 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 SOCKET_BINDING =
            new SimpleAttributeDefinitionBuilder(ModelKeys.SOCKET_BINDING, ModelType.STRING, true)
                    .setXmlName(Attribute.SOCKET_BINDING.getLocalName())
                    .setAllowExpression(false)
                    .setFlags(AttributeAccess.Flag.RESTART_ALL_SERVICES)
                    .addAccessConstraint(SensitiveTargetAccessConstraintDefinition.SOCKET_BINDING_REF)
                    .build();

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

    static AttributeDefinition[] PROTOCOL_ATTRIBUTES = new AttributeDefinition[] {TYPE, SOCKET_BINDING};
    static AttributeDefinition[] PROTOCOL_PARAMETERS = new AttributeDefinition[] {TYPE, SOCKET_BINDING, PROPERTIES};

    static final ObjectTypeAttributeDefinition PROTOCOL = ObjectTypeAttributeDefinition.
                Builder.of(ModelKeys.PROTOCOL, PROTOCOL_ATTRIBUTES).
                setAllowNull(true).
                setSuffix(null).
                setSuffix("protocol").
                build();

    static final ObjectListAttributeDefinition PROTOCOLS = ObjectListAttributeDefinition.
            Builder.of(ModelKeys.PROTOCOLS, PROTOCOL).
            setAllowNull(true).
            build();

    // operations
    static final OperationDefinition PROTOCOL_ADD = new SimpleOperationDefinitionBuilder(ModelKeys.ADD_PROTOCOL, JGroupsExtension.getResourceDescriptionResolver("stack"))
            .setParameters(PROTOCOL_PARAMETERS)
            .build();

    static final OperationDefinition PROTOCOL_REMOVE = new SimpleOperationDefinitionBuilder(ModelKeys.REMOVE_PROTOCOL, JGroupsExtension.getResourceDescriptionResolver("stack"))
            .setParameters(TYPE)
            .build();

    static final OperationStepHandler PROTOCOL_ADD_HANDLER = new ProtocolLayerAdd(PROTOCOL_PARAMETERS);
    static final OperationStepHandler PROTOCOL_REMOVE_HANDLER = new ProtocolLayerRemove();

    // registration
    private ProtocolResourceDefinition() {
        super(PROTOCOL_PATH, JGroupsExtension.getResourceDescriptionResolver(ModelKeys.PROTOCOL));
    }

    @Override
    public void registerAttributes(ManagementResourceRegistration resourceRegistration) {
        super.registerAttributes(resourceRegistration);
        final OperationStepHandler writeHandler = new ReloadRequiredWriteAttributeHandler(PROTOCOL_ATTRIBUTES);
        for (AttributeDefinition attr : PROTOCOL_ATTRIBUTES) {
            resourceRegistration.registerReadWriteAttribute(attr, null, writeHandler);
        }
    }

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