增加消息订阅注解 DomainSubscribe; 修改异常提示的获取方式

2022-08-30 11:10:59 +08:00
parent 4a45f7d61f
commit ea5c4160f1
20 changed files with 214 additions and 86 deletions
--- a/src/gaea.app/src/main/kotlin/com/synebula/gaea/app/component/bus/EventBusSubscriberProcessor.kt
+++ b/src/gaea.app/src/main/kotlin/com/synebula/gaea/app/component/bus/EventBusSubscriberProcessor.kt
@@ -1,7 +1,9 @@
 package com.synebula.gaea.app.component.bus

+import com.synebula.gaea.bus.DomainSubscribe
 import com.synebula.gaea.bus.IBus
 import com.synebula.gaea.bus.Subscribe
+import com.synebula.gaea.data.message.messageTopic
 import org.springframework.beans.BeansException
 import org.springframework.beans.factory.annotation.Autowired
 import org.springframework.beans.factory.config.BeanPostProcessor
@@ -27,20 +29,19 @@ class EventBusSubscriberProcessor : BeanPostProcessor {
        // for each method in the bean
        val methods: Array<Method> = bean.javaClass.methods
        for (method in methods) {
-            // check the annotations on that method
-            val annotations: Array<Annotation> = method.annotations
-            for (annotation in annotations) {
-                // if it contains Subscribe annotation
-                if (annotation.annotationClass == Subscribe::class) {
-                    // 如果这是一个Guava @Subscribe注解的事件监听器方法，说明所在bean实例
-                    // 对应一个Guava事件监听器类，将该bean实例注册到Guava事件总线
-                    val subscribe = annotation as Subscribe
-                    if (subscribe.topics.isEmpty())
-                        bus?.register(bean, method)
-                    else
-                        bus?.register(subscribe.topics, bean, method)
-                    return bean
-                }
+            if (method.isAnnotationPresent(Subscribe::class.java)) {
+                val subscribe = method.getAnnotation(Subscribe::class.java)
+                if (subscribe.topics.isEmpty())
+                    bus?.register(bean, method)
+                else
+                    bus?.register(subscribe.topics, bean, method)
+            }
+            if (method.isAnnotationPresent(DomainSubscribe::class.java)) {
+                val domainSubscribe = method.getAnnotation(DomainSubscribe::class.java)
+                var topic = messageTopic(domainSubscribe.domain, domainSubscribe.messageClass.java)
+                if (domainSubscribe.domainClass != Nothing::class)
+                    topic = messageTopic(domainSubscribe.domainClass.java, domainSubscribe.messageClass.java)
+                bus?.register(arrayOf(topic), bean, method)
            }
        }
        return bean
--- a/src/gaea.mongodb/src/main/kotlin/com/synebula/gaea/mongodb/query/MongodbQuery.kt
+++ b/src/gaea.mongodb/src/main/kotlin/com/synebula/gaea/mongodb/query/MongodbQuery.kt
@@ -1,6 +1,5 @@
 package com.synebula.gaea.mongodb.query

-import com.synebula.gaea.ext.fieldNames
 import com.synebula.gaea.ext.firstCharLowerCase
 import com.synebula.gaea.mongodb.order
 import com.synebula.gaea.mongodb.select
@@ -10,6 +9,7 @@ import com.synebula.gaea.query.IQuery
 import com.synebula.gaea.query.Page
 import com.synebula.gaea.query.Params
 import com.synebula.gaea.query.Table
+import com.synebula.gaea.reflect.fieldNames
 import org.springframework.data.mongodb.core.MongoTemplate
 import org.springframework.data.mongodb.core.query.Criteria
 import org.springframework.data.mongodb.core.query.Query
@@ -70,15 +70,8 @@ open class MongodbQuery<TView, ID>(override var clazz: Class<TView>, var templat
        return this.template.find(query, clazz, this.collection(clazz))
    }

-    protected fun fields(clazz: Class<TView>): Array<String> {
-        val fields = mutableListOf<String>()
-        fields.addAll(clazz.fieldNames())
-        var parent = clazz.superclass
-        while (parent != Any::class.java) {
-            fields.addAll(clazz.superclass.fieldNames())
-            parent = parent.superclass
-        }
-        return fields.toTypedArray()
+    fun <TView> fields(clazz: Class<TView>): Array<String> {
+        return clazz.fieldNames().toTypedArray()
    }

    /**
--- a/src/gaea.mongodb/src/main/kotlin/com/synebula/gaea/mongodb/query/MongodbUniversalQuery.kt
+++ b/src/gaea.mongodb/src/main/kotlin/com/synebula/gaea/mongodb/query/MongodbUniversalQuery.kt
@@ -1,7 +1,6 @@
 package com.synebula.gaea.mongodb.query


-import com.synebula.gaea.ext.fieldNames
 import com.synebula.gaea.ext.firstCharLowerCase
 import com.synebula.gaea.mongodb.order
 import com.synebula.gaea.mongodb.select
@@ -11,6 +10,7 @@ import com.synebula.gaea.query.IUniversalQuery
 import com.synebula.gaea.query.Page
 import com.synebula.gaea.query.Params
 import com.synebula.gaea.query.Table
+import com.synebula.gaea.reflect.fieldNames
 import org.springframework.data.mongodb.core.MongoTemplate
 import org.springframework.data.mongodb.core.query.Criteria
 import org.springframework.data.mongodb.core.query.Query
@@ -70,14 +70,7 @@ open class MongodbUniversalQuery(var template: MongoTemplate) : IUniversalQuery
    }

    fun <TView> fields(clazz: Class<TView>): Array<String> {
-        val fields = mutableListOf<String>()
-        fields.addAll(clazz.fieldNames())
-        var parent = clazz.superclass
-        while (parent != Any::class.java) {
-            fields.addAll(clazz.superclass.fieldNames())
-            parent = parent.superclass
-        }
-        return fields.toTypedArray()
+        return clazz.fieldNames().toTypedArray()
    }

    /**
--- a/src/gaea.spring/src/main/kotlin/com/synebula/gaea/spring/aop/AppAspect.kt
+++ b/src/gaea.spring/src/main/kotlin/com/synebula/gaea/spring/aop/AppAspect.kt
@@ -60,7 +60,7 @@ abstract class AppAspect {
            point.proceed()
        } catch (ex: Throwable) {
            val moduleName = this.resolveModuleName(point.`this`)
-            var message = "$moduleName - ${funcName}异常"
+            var message = "${moduleName}-${funcName}异常"
            message = if (ex is NoticeUserException || ex is Error) {
                "$message: ${ex.message}"
            } else {
@@ -91,10 +91,12 @@ abstract class AppAspect {
            moduleName = module.name
        }
        // 3.尝试找类的name字段作为模块名称
-        val nameField = clazz.fields.find { it.name == "name" }
-        if (nameField != null) {
-            moduleName = nameField.get(obj).toString()
+        try {
+            val nameGetter = clazz.getMethod("getName")
+            moduleName = nameGetter.invoke(obj).toString()
+        } catch (_: NoSuchMethodException) {
        }
+
        return moduleName
    }
 }
--- a/src/gaea/src/main/kotlin/com/synebula/gaea/bus/DomainSubscribe.kt
+++ b/src/gaea/src/main/kotlin/com/synebula/gaea/bus/DomainSubscribe.kt
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2007 The Guava Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under the License
+ * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
+ * or implied. See the License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.synebula.gaea.bus
+
+import kotlin.reflect.KClass
+
+/**
+ * Marks a method as a message subscriber.
+ *
+ *
+ * The type of message will be indicated by the method's first (and only) parameter, which cannot
+ * be primitive. If this annotation is applied to methods with zero parameters, or more than one
+ * parameter, the object containing the method will not be able to register for message delivery from
+ * the [Bus].
+ *
+ *
+ * Unless also annotated with @[AllowConcurrentSubscribe], message subscriber methods will be
+ * invoked serially by each message bus that they are registered with.
+ *
+ * @author Cliff
+ * @since 10.0
+ *
+ * @param messageClass class of message
+ * @param domainClass subscriber for class of domain
+ * @param domain subscriber for domain
+ */
+@Retention(AnnotationRetention.RUNTIME)
+@Target(AnnotationTarget.FUNCTION, AnnotationTarget.PROPERTY_GETTER, AnnotationTarget.PROPERTY_SETTER)
+annotation class DomainSubscribe(
+    val messageClass: KClass<*>,
+    val domainClass: KClass<*> = Nothing::class,
+    val domain: String = ""
+)
--- a/src/gaea/src/main/kotlin/com/synebula/gaea/bus/Subscribe.kt
+++ b/src/gaea/src/main/kotlin/com/synebula/gaea/bus/Subscribe.kt
@@ -29,7 +29,7 @@ package com.synebula.gaea.bus
 * @author Cliff
 * @since 10.0
 *
- * @param topics method subscribe topics, only for [com.synebula.gaea.bus.messagebus.MessageBus]
+ * @param topics method subscribe topics
 */
@Retention(AnnotationRetention.RUNTIME)
@Target(AnnotationTarget.FUNCTION, AnnotationTarget.PROPERTY_GETTER, AnnotationTarget.PROPERTY_SETTER)
--- a/src/gaea/src/main/kotlin/com/synebula/gaea/bus/SubscriberRegistry.kt
+++ b/src/gaea/src/main/kotlin/com/synebula/gaea/bus/SubscriberRegistry.kt
@@ -13,6 +13,7 @@
 */
 package com.synebula.gaea.bus

+import com.synebula.gaea.data.message.messageTopic
 import com.synebula.gaea.reflect.supertypes
 import java.lang.reflect.Method
 import java.util.concurrent.ConcurrentHashMap
@@ -143,7 +144,16 @@ open class SubscriberRegistry<T : Any>(private val bus: IBus<T>) {
        val methodsInListener = mutableMapOf<String, MutableList<Subscriber<T>>>()
        val clazz: Class<*> = subscriber.javaClass
        for (method in getAnnotatedMethods(clazz)) {
-            var topics = method.getAnnotation(Subscribe::class.java).topics
+            var topics: Array<String>
+            if (method.isAnnotationPresent(Subscribe::class.java))
+                topics = method.getAnnotation(Subscribe::class.java).topics
+            else {
+                val domainSubscribe = method.getAnnotation(DomainSubscribe::class.java)
+                var topic = messageTopic(domainSubscribe.domain, domainSubscribe.messageClass.java)
+                if (domainSubscribe.domainClass != Nothing::class)
+                    topic = messageTopic(domainSubscribe.domainClass.java, domainSubscribe.messageClass.java)
+                topics = arrayOf(topic)
+            }

            //如果没有定义topic，则使用消息类名称做topic
            if (topics.isEmpty()) {
@@ -191,19 +201,20 @@ open class SubscriberRegistry<T : Any>(private val bus: IBus<T>) {
    protected fun getAnnotatedMethods(clazz: Class<*>): List<Method> {
        var methods = subscriberMethodsCache[clazz]
        if (methods == null)
-            methods = getAnnotatedMethodsNotCached(clazz, Subscribe::class.java)
+            methods = getAnnotatedMethodsNotCached(clazz, Subscribe::class.java, DomainSubscribe::class.java)
        return methods
    }

    protected fun getAnnotatedMethodsNotCached(
        clazz: Class<*>,
-        annotationClass: Class<out Annotation>,
+        vararg annotationClasses: Class<out Annotation>,
    ): List<Method> {
        val supertypes = flattenHierarchy(clazz)
        val identifiers = mutableMapOf<MethodIdentifier, Method>()
        for (supertype in supertypes) {
            for (method in supertype.declaredMethods) {
-                if (method.isAnnotationPresent(annotationClass) && !method.isSynthetic) {
+                val isAnnotationPresent = annotationClasses.any { method.isAnnotationPresent(it) }
+                if (isAnnotationPresent && !method.isSynthetic) {
                    val parameterTypes = method.parameterTypes
                    check(parameterTypes.size == 1) {
                        "Method $method has @SubscribeTopic annotation but has ${parameterTypes.size} parameters. Subscriber methods must have exactly 1 parameter."
--- a/src/gaea/src/main/kotlin/com/synebula/gaea/data/message/DataMessage.kt
+++ b/src/gaea/src/main/kotlin/com/synebula/gaea/data/message/DataMessage.kt
@@ -1,7 +1,5 @@
 package com.synebula.gaea.data.message

-import java.util.*
-
 /**
 *
 * 用来统一Http返回消息类型，通常使用json格式传递
@@ -15,18 +13,14 @@ open class DataMessage<T>() : StatusMessage() {
     */
    var data: T? = null

-    /**
-     * 消息时间戳
-     */
-    val timestamp: Long = Date().time
-
    constructor(data: T) : this() {
        this.data = data
    }

+    @Suppress("")
    constructor(status: Int, message: String) : this() {
        this.status = status
-        this.message = message
+        message.also { this.message = it }
    }

    constructor(status: Int, data: T, message: String) : this(status, message) {
--- a/src/gaea/src/main/kotlin/com/synebula/gaea/data/message/IEvent.kt
+++ b/src/gaea/src/main/kotlin/com/synebula/gaea/data/message/IEvent.kt
@@ -0,0 +1,22 @@
+package com.synebula.gaea.data.message
+
+interface IEvent {
+
+    /**
+     * 获取事件的Topic
+     *
+     * @param domain 领域名称
+     */
+    fun topic(domain: String): String {
+        return messageTopic(domain, this::class.java)
+    }
+
+    /**
+     * 获取事件的Topic
+     *
+     * @param domainClass 领域类
+     */
+    fun topic(domainClass: Class<*>): String {
+        return messageTopic(domainClass, this::class.java)
+    }
+}
--- a/src/gaea/src/main/kotlin/com/synebula/gaea/data/message/IMessage.kt
+++ b/src/gaea/src/main/kotlin/com/synebula/gaea/data/message/IMessage.kt
@@ -5,7 +5,7 @@ package com.synebula.gaea.data.message
 */
 interface IMessage {
    /**
-     * 命令载荷, 实际的业务数据
+     * 消息载荷, 实际的业务数据
     */
    var message: String

@@ -13,4 +13,22 @@ interface IMessage {
     * 时间戳。
     */
    var timestamp: Long
+
+    /**
+     * 获取消息的Topic
+     *
+     * @param domain 领域名称
+     */
+    fun topic(domain: String): String {
+        return messageTopic(domain, this::class.java)
+    }
+
+    /**
+     * 获取消息的Topic
+     *
+     * @param domainClass 领域类
+     */
+    fun topic(domainClass: Class<*>): String {
+        return messageTopic(domainClass, this::class.java)
+    }
 }
--- a/src/gaea/src/main/kotlin/com/synebula/gaea/data/message/Messages.kt
+++ b/src/gaea/src/main/kotlin/com/synebula/gaea/data/message/Messages.kt
@@ -0,0 +1,23 @@
+package com.synebula.gaea.data.message
+
+import com.synebula.gaea.ext.firstCharLowerCase
+
+/**
+ * 获取事件的Topic
+ *
+ * @param domain 领域名称
+ * @param messageClass 消息的类型
+ */
+fun messageTopic(domain: String, messageClass: Class<*>): String {
+    return if (domain.isNotBlank()) "$domain.${messageClass.simpleName}" else messageClass.simpleName
+}
+
+/**
+ * 获取事件的Topic
+ *
+ * @param domainClass 领域类
+ * @param messageClass 消息的类型
+ */
+fun messageTopic(domainClass: Class<*>, messageClass: Class<*>): String {
+    return "${domainClass.simpleName.firstCharLowerCase()}.${messageClass.simpleName}"
+}
--- a/src/gaea/src/main/kotlin/com/synebula/gaea/data/message/StatusMessage.kt
+++ b/src/gaea/src/main/kotlin/com/synebula/gaea/data/message/StatusMessage.kt
@@ -1,6 +1,8 @@
 package com.synebula.gaea.data.message

-open class StatusMessage {
+import java.util.*
+
+open class StatusMessage : IMessage {
    /**
     * 状态。200成功，400错误，500异常
     */
@@ -14,6 +16,10 @@ open class StatusMessage {
    /**
     * 附带提示消息
     */
-    var message = ""
+    override var message = ""

+    /**
+     * 时间戳。
+     */
+    override var timestamp = Date().time
 }
--- a/src/gaea/src/main/kotlin/com/synebula/gaea/domain/event/AfterRemoveEvent.kt
+++ b/src/gaea/src/main/kotlin/com/synebula/gaea/domain/event/AfterRemoveEvent.kt
@@ -1,5 +1,6 @@
 package com.synebula.gaea.domain.event

+import com.synebula.gaea.data.message.IEvent
 import com.synebula.gaea.domain.model.IAggregateRoot

-class AfterRemoveEvent<T : IAggregateRoot<I>, I>(var id: I? = null)
+class AfterRemoveEvent<T : IAggregateRoot<I>, I>(var id: I? = null) : IEvent
--- a/src/gaea/src/main/kotlin/com/synebula/gaea/domain/event/BeforeRemoveEvent.kt
+++ b/src/gaea/src/main/kotlin/com/synebula/gaea/domain/event/BeforeRemoveEvent.kt
@@ -1,5 +1,6 @@
 package com.synebula.gaea.domain.event

+import com.synebula.gaea.data.message.IEvent
 import com.synebula.gaea.domain.model.IAggregateRoot

-class BeforeRemoveEvent<T : IAggregateRoot<I>, I>(var id: I? = null)
+class BeforeRemoveEvent<T : IAggregateRoot<I>, I>(var id: I? = null) : IEvent
--- a/src/gaea/src/main/kotlin/com/synebula/gaea/domain/service/Service.kt
+++ b/src/gaea/src/main/kotlin/com/synebula/gaea/domain/service/Service.kt
@@ -7,7 +7,6 @@ import com.synebula.gaea.domain.event.AfterRemoveEvent
 import com.synebula.gaea.domain.event.BeforeRemoveEvent
 import com.synebula.gaea.domain.model.IAggregateRoot
 import com.synebula.gaea.domain.repository.IRepository
-import com.synebula.gaea.ext.firstCharLowerCase
 import javax.annotation.Resource


@@ -81,16 +80,10 @@ open class Service<TRoot : IAggregateRoot<ID>, ID>(
     */
    override fun remove(id: ID) {
        val beforeRemoveEvent = BeforeRemoveEvent<TRoot, ID>(id)
-        this.bus?.publish(
-            "${this.clazz.simpleName.firstCharLowerCase()}${BeforeRemoveEvent::class.java.simpleName}",
-            beforeRemoveEvent
-        )
+        this.bus?.publish(beforeRemoveEvent.topic(this.clazz), beforeRemoveEvent)
        this.repository.remove(id)
        val afterRemoveEvent = AfterRemoveEvent<TRoot, ID>(id)
-        this.bus?.publish(
-            "${this.clazz.simpleName.firstCharLowerCase()}${AfterRemoveEvent::class.java.simpleName}",
-            afterRemoveEvent
-        )
+        this.bus?.publish(afterRemoveEvent.topic(this.clazz), afterRemoveEvent)
    }

    /**
--- a/src/gaea/src/main/kotlin/com/synebula/gaea/domain/service/SimpleService.kt
+++ b/src/gaea/src/main/kotlin/com/synebula/gaea/domain/service/SimpleService.kt
@@ -1,9 +1,13 @@
 package com.synebula.gaea.domain.service

+import com.synebula.gaea.bus.IBus
 import com.synebula.gaea.data.message.DataMessage
+import com.synebula.gaea.domain.event.AfterRemoveEvent
+import com.synebula.gaea.domain.event.BeforeRemoveEvent
 import com.synebula.gaea.domain.model.IAggregateRoot
 import com.synebula.gaea.domain.repository.IRepository
 import com.synebula.gaea.log.ILogger
+import javax.annotation.Resource


 /**
@@ -17,26 +21,32 @@ import com.synebula.gaea.log.ILogger
 * @version 0.1
 * @since 2020-05-17
 */
-open class SimpleService<TAggregateRoot : IAggregateRoot<ID>, ID>(
-    protected open var clazz: Class<TAggregateRoot>,
-    protected open var repository: IRepository<TAggregateRoot, ID>,
+open class SimpleService<TRoot : IAggregateRoot<ID>, ID>(
+    protected open var clazz: Class<TRoot>,
+    protected open var repository: IRepository<TRoot, ID>,
    override var logger: ILogger,
-) : ISimpleService<TAggregateRoot, ID> {
+) : ISimpleService<TRoot, ID> {
+    @Resource
+    protected open var bus: IBus<Any>? = null

-    override fun add(root: TAggregateRoot): DataMessage<ID> {
+    override fun add(root: TRoot): DataMessage<ID> {
        val msg = DataMessage<ID>()
        this.repository.add(root)
        msg.data = root.id
        return msg
    }

-    override fun update(id: ID, root: TAggregateRoot) {
+    override fun update(id: ID, root: TRoot) {
        root.id = id
        this.repository.update(root)
    }

    override fun remove(id: ID) {
+        val beforeRemoveEvent = BeforeRemoveEvent<TRoot, ID>(id)
+        this.bus?.publish(beforeRemoveEvent.topic(this.clazz), beforeRemoveEvent)
        this.repository.remove(id)
+        val afterRemoveEvent = AfterRemoveEvent<TRoot, ID>(id)
+        this.bus?.publish(afterRemoveEvent.topic(this.clazz), afterRemoveEvent)
    }

    /**
@@ -44,7 +54,7 @@ open class SimpleService<TAggregateRoot : IAggregateRoot<ID>, ID>(
     *
     * @param roots 增加对象命令列表
     */
-    override fun add(roots: List<TAggregateRoot>) {
+    override fun add(roots: List<TRoot>) {
        this.repository.add(roots)
    }

@@ -53,7 +63,7 @@ open class SimpleService<TAggregateRoot : IAggregateRoot<ID>, ID>(
     *
     * @param roots 更新对象命令列表
     */
-    override fun update(roots: List<TAggregateRoot>) {
+    override fun update(roots: List<TRoot>) {
        this.repository.update(roots)
    }
 }
--- a/src/gaea/src/main/kotlin/com/synebula/gaea/ext/ClassExt.kt
+++ b/src/gaea/src/main/kotlin/com/synebula/gaea/ext/ClassExt.kt
@@ -1,12 +0,0 @@
-package com.synebula.gaea.ext
-
-/**
- * 获取对象字段信息字符串列表。
- */
-fun Class<*>.fieldNames(): List<String> {
-    val names = mutableListOf<String>()
-    this.declaredFields.forEach { field ->
-        names.add(field.name)
-    }
-    return names
-}
--- a/src/gaea/src/main/kotlin/com/synebula/gaea/ext/DateExt.kt
+++ b/src/gaea/src/main/kotlin/com/synebula/gaea/ext/DateExt.kt
--- a/src/gaea/src/main/kotlin/com/synebula/gaea/ext/StringExt.kt
+++ b/src/gaea/src/main/kotlin/com/synebula/gaea/ext/StringExt.kt
@@ -12,7 +12,18 @@ fun String.firstCharLowerCase(): String {
        this
    else
        StringBuilder().append(Character.toLowerCase(this.elementAt(0)))
-                .append(this.substring(1)).toString()
+            .append(this.substring(1)).toString()
+}
+
+/**
+ * 首字母小写
+ */
+fun String.firstCharUpperCase(): String {
+    return if (Character.isLowerCase(this.elementAt(0)))
+        this
+    else
+        StringBuilder().append(Character.toUpperCase(this.elementAt(0)))
+            .append(this.substring(1)).toString()
 }

 /**
--- a/src/gaea/src/main/kotlin/com/synebula/gaea/reflect/Types.kt
+++ b/src/gaea/src/main/kotlin/com/synebula/gaea/reflect/Types.kt
@@ -48,4 +48,21 @@ fun Class<*>.findField(name: String): Field? {
        }
    }
    return field
-}
+}
+
+/**
+ * 获取对象字段信息字符串列表。
+ */
+fun Class<*>.fieldNames(): List<String> {
+    val names = mutableListOf<String>()
+    for (f in this.declaredFields) {
+        names.add(f.name)
+    }
+    val superclass = this.superclass
+    if (superclass != Any::class.java) {
+        names.addAll(superclass.fieldNames())
+    }
+    return names
+}
+
+