EncryptProtocolResourceDefinition.java example

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wildfly-master
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 * as indicated by the @author tags. See the copyright.txt file in the
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 * 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
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 *
 * This software is distributed in the hope that it will be useful,
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 * Lesser General Public License for more details.
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package org.jboss.as.clustering.jgroups.subsystem;

import java.util.function.Consumer;
import java.util.function.UnaryOperator;

import org.jboss.as.clustering.controller.CapabilityReference;
import org.jboss.as.clustering.controller.CommonUnaryRequirement;
import org.jboss.as.clustering.controller.ResourceDescriptor;
import org.jboss.as.clustering.controller.ResourceServiceBuilderFactory;
import org.jboss.as.clustering.jgroups.protocol.EncryptProtocol;
import org.jboss.as.controller.AttributeDefinition;
import org.jboss.as.controller.ModelVersion;
import org.jboss.as.controller.SimpleAttributeDefinitionBuilder;
import org.jboss.as.controller.registry.AttributeAccess;
import org.jboss.as.controller.security.CredentialReference;
import org.jboss.as.controller.transform.description.ResourceTransformationDescriptionBuilder;
import org.jboss.dmr.ModelType;
import org.jgroups.protocols.EncryptBase;
import org.wildfly.clustering.jgroups.spi.ChannelFactory;

/**
 * Resource definition override for protocols that require an encryption key.
 * @author Paul Ferraro
 */
public class EncryptProtocolResourceDefinition<P extends EncryptBase & EncryptProtocol> extends ProtocolResourceDefinition<P> {

    enum Attribute implements org.jboss.as.clustering.controller.Attribute {
        CREDENTIAL(CredentialReference.getAttributeBuilder(CredentialReference.CREDENTIAL_REFERENCE, CredentialReference.CREDENTIAL_REFERENCE, false, new CapabilityReference(Capability.PROTOCOL, CommonUnaryRequirement.CREDENTIAL_STORE)).build()),
        KEY_ALIAS("key-alias", ModelType.STRING, builder -> builder.setAllowExpression(true)),
        KEY_STORE("key-store", ModelType.STRING, builder -> builder.setCapabilityReference(new CapabilityReference(Capability.PROTOCOL, CommonUnaryRequirement.KEY_STORE))),
        ;
        private final AttributeDefinition definition;

        Attribute(String name, ModelType type, UnaryOperator<SimpleAttributeDefinitionBuilder> configurator) {
            this.definition = configurator.apply(new SimpleAttributeDefinitionBuilder(name, type)
                    .setRequired(true)
                    .setFlags(AttributeAccess.Flag.RESTART_RESOURCE_SERVICES)
                    ).build();
        }

        Attribute(AttributeDefinition definition) {
            this.definition = definition;
        }

        @Override
        public AttributeDefinition getDefinition() {
            return this.definition;
        }
    }

    static void addTransformations(ModelVersion version, ResourceTransformationDescriptionBuilder builder) {

        ProtocolResourceDefinition.addTransformations(version, builder);
    }

    public EncryptProtocolResourceDefinition(String name, Consumer<ResourceDescriptor> descriptorConfigurator, ResourceServiceBuilderFactory<ChannelFactory> parentBuilderFactory) {
        super(pathElement(name), descriptorConfigurator.andThen(descriptor -> descriptor
                .addAttributes(Attribute.class)
                .setAddOperationTransformation(new LegacyAddOperationTransformation(operation -> !operation.hasDefined(Attribute.KEY_STORE.getName()) && !operation.hasDefined(Attribute.KEY_ALIAS.getName()) && !operation.hasDefined(Attribute.CREDENTIAL.getName())))
                ), address -> new EncryptProtocolConfigurationBuilder<>(address), parentBuilderFactory);
    }
}