| /* |
| * Copyright (c) 2011, Rickard Öberg. |
| * Copyright (c) 2012, Niclas Hedhman. |
| * |
| * 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 org.qi4j.api.activation; |
| |
| /** |
| * ActivationEvents are fired during activation and passivation of instances in Zest. |
| */ |
| public final class ActivationEvent |
| { |
| public enum EventType |
| { |
| ACTIVATING, ACTIVATED, PASSIVATING, PASSIVATED |
| } |
| |
| private final long timestamp; |
| private final Object source; |
| private final EventType type; |
| |
| public ActivationEvent( Object source, EventType type ) |
| { |
| this.timestamp = System.currentTimeMillis(); |
| this.source = source; |
| this.type = type; |
| } |
| |
| /** |
| * @return the source of the Activation event |
| */ |
| public Object source() |
| { |
| return source; |
| } |
| |
| /** |
| * @return the type of the Activation event |
| */ |
| public EventType type() |
| { |
| return type; |
| } |
| |
| /** |
| * @return an informative message describing the event |
| */ |
| public String message() |
| { |
| switch( type ) |
| { |
| case ACTIVATING: |
| return "Activating " + source; |
| case ACTIVATED: |
| return "Activated " + source; |
| case PASSIVATING: |
| return "Passivating " + source; |
| case PASSIVATED: |
| return "Passivated " + source; |
| } |
| return ""; |
| } |
| |
| /** |
| * @see #message() |
| */ |
| @Override |
| public String toString() |
| { |
| return message(); |
| } |
| } |