| /* |
| * Copyright 2017 HugeGraph Authors |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with this |
| * work for additional information regarding copyright ownership. The ASF |
| * licenses this file to You 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.baidu.hugegraph.event; |
| |
| import java.util.Arrays; |
| import java.util.Collections; |
| |
| import com.baidu.hugegraph.util.E; |
| |
| public class Event extends java.util.EventObject { |
| |
| private static final long serialVersionUID = 1625973849208342813L; |
| |
| private String name; |
| private Object[] args; |
| |
| public Event(Object source, String event) { |
| this(source, event, Collections.emptyList().toArray()); |
| } |
| |
| public Event(Object source, String event, Object... args) { |
| super(source); |
| this.name = event; |
| this.args = args; |
| } |
| |
| public String name() { |
| return this.name; |
| } |
| |
| public Object[] args() { |
| return this.args; |
| } |
| |
| public void checkArgs(Class<?>... classes) throws IllegalArgumentException { |
| E.checkArgument(this.args.length == classes.length, |
| "The args count of event '%s' should be %s(actual %s)", |
| this.name, classes.length, this.args.length); |
| int i = 0; |
| for (Class<?> c : classes) { |
| Object arg = this.args[i++]; |
| if (arg == null) { |
| continue; |
| } |
| E.checkArgument(c.isAssignableFrom(arg.getClass()), |
| "The arg '%s'(%s) can't match %s", |
| arg, arg.getClass(), c); |
| } |
| } |
| |
| @Override |
| public String toString() { |
| return String.format("Event{name='%s', args=%s}", |
| this.name, Arrays.asList(this.args)); |
| } |
| } |