[Add] Framework-API 添加消息事件抽象类;

[Add] AbstractMessageEvent 初步添加一个消息事件类, 后续可能有变动;

ContentGrabbingJi-framework-api/src/main/java/net/lamgc/cgj/bot/framework/message/AbstractMessageEvent.java

@@ -0,0 +1,102 @@
+/*
+ * Copyright (C) 2020  LamGC
+ *
+ * ContentGrabbingJi is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * ContentGrabbingJi 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 Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package net.lamgc.cgj.bot.framework.message;
+
+import net.lamgc.cgj.bot.event.AbstractEventObject;
+import net.lamgc.cgj.bot.framework.Platform;
+
+import java.util.Objects;
+import java.util.ResourceBundle;
+
+/**
+ * 消息事件.
+ * @author LamGC
+ */
+public abstract class AbstractMessageEvent extends AbstractEventObject {
+
+    private final Platform fromPlatform;
+    private final MessageSource messageSource;
+    /**
+     * 消息来源 Id.
+     * <p> fromId 必须要与 {@link #getSender()} 中的 {@link MessageSender#getId() getId()} 一致.
+     */
+    private final long fromId;
+    /**
+     * 消息发送者 Id.
+     * <p> 当 Sender 为 Group 等非个人的时候, 将无法获取具体消息发送者, 故添加 SenderId 参数以指向具体发送者.
+     * <p> 当 Sender 为消息来源时, SenderId 与 {@link MessageSender#getId()} 一致.
+     */
+    private final long senderId;
+    private final Message content;
+    private final MessageSender sender;
+
+    /**
+     * 语言包.
+     * <p> 如果激活 i18n 的话就会使用到该属性, Bot 将使用对应的消息模板构建回复消息内容.
+     * <p> 当 Framework 不提供时将使用内置默认语言包.
+     */
+    private ResourceBundle resourceBundle = null;
+
+    protected AbstractMessageEvent(
+            Platform fromPlatform,
+            MessageSource messageSource,
+            long fromId,
+            long senderId,
+            Message messageContent,
+            MessageSender sender) {
+        this.fromPlatform = Objects.requireNonNull(fromPlatform);
+        this.messageSource = Objects.requireNonNull(messageSource);
+        this.fromId = fromId;
+        this.senderId = senderId;
+        this.content = messageContent;
+        this.sender = sender;
+    }
+
+    public Platform getFromPlatform() {
+        return fromPlatform;
+    }
+
+    public MessageSource getMessageSource() {
+        return messageSource;
+    }
+
+    public long getFromId() {
+        return fromId;
+    }
+
+    public long getSenderId() {
+        return senderId;
+    }
+
+    public Message getContent() {
+        return content;
+    }
+
+    public ResourceBundle getResourceBundle() {
+        return resourceBundle;
+    }
+
+    public void setResourceBundle(ResourceBundle resourceBundle) {
+        this.resourceBundle = resourceBundle;
+    }
+
+    public MessageSender getSender() {
+        return sender;
+    }
+
+}