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| 1 | +/* |
| 2 | + * Copyright The WildFly Authors |
| 3 | + * SPDX-License-Identifier: Apache-2.0 |
| 4 | + */ |
| 5 | + |
| 6 | +package org.wildfly.extension.discovery; |
| 7 | + |
| 8 | +import java.util.ArrayList; |
| 9 | +import java.util.List; |
| 10 | +import java.util.stream.Stream; |
| 11 | + |
| 12 | +import org.jboss.as.controller.AttributeDefinition; |
| 13 | +import org.jboss.as.controller.AttributeMarshaller; |
| 14 | +import org.jboss.as.controller.AttributeParser; |
| 15 | +import org.jboss.as.controller.ObjectListAttributeDefinition; |
| 16 | +import org.jboss.as.controller.ObjectTypeAttributeDefinition; |
| 17 | +import org.jboss.as.controller.OperationContext; |
| 18 | +import org.jboss.as.controller.OperationFailedException; |
| 19 | +import org.jboss.as.controller.PathElement; |
| 20 | +import org.jboss.as.controller.SimpleAttributeDefinition; |
| 21 | +import org.jboss.as.controller.SimpleAttributeDefinitionBuilder; |
| 22 | +import org.jboss.as.controller.descriptions.ModelDescriptionConstants; |
| 23 | +import org.jboss.as.controller.registry.AttributeAccess.Flag; |
| 24 | +import org.jboss.dmr.ModelNode; |
| 25 | +import org.jboss.dmr.ModelType; |
| 26 | +import org.wildfly.discovery.AttributeValue; |
| 27 | +import org.wildfly.discovery.ServiceURL; |
| 28 | +import org.wildfly.discovery.impl.StaticDiscoveryProvider; |
| 29 | +import org.wildfly.discovery.spi.DiscoveryProvider; |
| 30 | +import org.wildfly.subsystem.service.ServiceDependency; |
| 31 | + |
| 32 | +/** |
| 33 | + * Describes an aggregate discovery provider resource. |
| 34 | + * @author Paul Ferraro |
| 35 | + */ |
| 36 | +public enum StaticDiscoveryProviderResourceDescription implements DiscoveryProviderResourceDescription { |
| 37 | + INSTANCE; |
| 38 | + |
| 39 | + private static final SimpleAttributeDefinition ABSTRACT_TYPE = new SimpleAttributeDefinitionBuilder("abstract-type", ModelType.STRING, true).setAllowExpression(true).build(); |
| 40 | + private static final SimpleAttributeDefinition ABSTRACT_TYPE_AUTHORITY = new SimpleAttributeDefinitionBuilder("abstract-type-authority", ModelType.STRING, true).setAllowExpression(true).build(); |
| 41 | + private static final SimpleAttributeDefinition URI = new SimpleAttributeDefinitionBuilder("uri", ModelType.STRING, false).setValidator(new ServiceURIValidator()).setAllowExpression(true).build(); |
| 42 | + private static final SimpleAttributeDefinition URI_SCHEME_AUTHORITY = new SimpleAttributeDefinitionBuilder("uri-scheme-authority", ModelType.STRING, true).setAllowExpression(true).build(); |
| 43 | + |
| 44 | + private static final SimpleAttributeDefinition NAME = new SimpleAttributeDefinitionBuilder(ModelDescriptionConstants.NAME, ModelType.STRING, false).setAllowExpression(true).build(); |
| 45 | + private static final SimpleAttributeDefinition VALUE = new SimpleAttributeDefinitionBuilder(ModelDescriptionConstants.VALUE, ModelType.STRING, true).setAllowExpression(true).build(); |
| 46 | + |
| 47 | + private static final ObjectTypeAttributeDefinition ATTRIBUTE = new ObjectTypeAttributeDefinition.Builder("attribute", NAME, VALUE).build(); |
| 48 | + |
| 49 | + private static final ObjectListAttributeDefinition SERVICE_ATTRIBUTES = new ObjectListAttributeDefinition.Builder("attributes", ATTRIBUTE) |
| 50 | + .setAttributeMarshaller(AttributeMarshaller.UNWRAPPED_OBJECT_LIST_MARSHALLER) |
| 51 | + .setAttributeParser(AttributeParser.UNWRAPPED_OBJECT_LIST_PARSER) |
| 52 | + .setRequired(false) |
| 53 | + .build(); |
| 54 | + |
| 55 | + private static final ObjectTypeAttributeDefinition SERVICE = new ObjectTypeAttributeDefinition.Builder("service", |
| 56 | + ABSTRACT_TYPE, |
| 57 | + ABSTRACT_TYPE_AUTHORITY, |
| 58 | + URI, |
| 59 | + URI_SCHEME_AUTHORITY, |
| 60 | + SERVICE_ATTRIBUTES |
| 61 | + ).build(); |
| 62 | + |
| 63 | + private static final ObjectListAttributeDefinition SERVICES = new ObjectListAttributeDefinition.Builder("services", SERVICE) |
| 64 | + .setAttributeMarshaller(AttributeMarshaller.UNWRAPPED_OBJECT_LIST_MARSHALLER) |
| 65 | + .setAttributeParser(AttributeParser.UNWRAPPED_OBJECT_LIST_PARSER) |
| 66 | + .setFlags(Flag.RESTART_RESOURCE_SERVICES) |
| 67 | + .build(); |
| 68 | + |
| 69 | + private final PathElement path = PathElement.pathElement("static-provider"); |
| 70 | + |
| 71 | + @Override |
| 72 | + public PathElement getPathElement() { |
| 73 | + return this.path; |
| 74 | + } |
| 75 | + |
| 76 | + @Override |
| 77 | + public Stream<AttributeDefinition> getAttributes() { |
| 78 | + return Stream.of(SERVICES); |
| 79 | + } |
| 80 | + |
| 81 | + @Override |
| 82 | + public ServiceDependency<DiscoveryProvider> resolve(OperationContext context, ModelNode model) throws OperationFailedException { |
| 83 | + List<ModelNode> services = SERVICES.resolveModelAttribute(context, model).asListOrEmpty(); |
| 84 | + List<ServiceURL> serviceURLs = new ArrayList<>(services.size()); |
| 85 | + for (ModelNode service : services) { |
| 86 | + ServiceURL.Builder builder = new ServiceURL.Builder(); |
| 87 | + builder.setUri(java.net.URI.create(URI.resolveModelAttribute(context, service).asString())); |
| 88 | + String abstractType = ABSTRACT_TYPE.resolveModelAttribute(context, service).asStringOrNull(); |
| 89 | + if (abstractType != null) { |
| 90 | + builder.setAbstractType(abstractType); |
| 91 | + } |
| 92 | + String abstractTypeAuthority = ABSTRACT_TYPE_AUTHORITY.resolveModelAttribute(context, service).asStringOrNull(); |
| 93 | + if (abstractTypeAuthority != null) { |
| 94 | + builder.setAbstractTypeAuthority(abstractTypeAuthority); |
| 95 | + } |
| 96 | + String uriSchemeAuthority = URI_SCHEME_AUTHORITY.resolveModelAttribute(context, service).asStringOrNull(); |
| 97 | + if (uriSchemeAuthority != null) { |
| 98 | + builder.setUriSchemeAuthority(uriSchemeAuthority); |
| 99 | + } |
| 100 | + for (ModelNode attribute : SERVICE_ATTRIBUTES.resolveModelAttribute(context, service).asListOrEmpty()) { |
| 101 | + String name = NAME.resolveModelAttribute(context, attribute).asString(); |
| 102 | + String value = VALUE.resolveModelAttribute(context, attribute).asStringOrNull(); |
| 103 | + if (value != null) { |
| 104 | + builder.addAttribute(name, AttributeValue.fromString(value)); |
| 105 | + } else { |
| 106 | + builder.addAttribute(name); |
| 107 | + } |
| 108 | + } |
| 109 | + ServiceURL serviceURL = builder.create(); |
| 110 | + Messages.log.tracef("Adding service URL %s", serviceURL); |
| 111 | + serviceURLs.add(serviceURL); |
| 112 | + } |
| 113 | + return ServiceDependency.of(new StaticDiscoveryProvider(serviceURLs)); |
| 114 | + } |
| 115 | +} |
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