| /** |
| * 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 org.apache.storm.messaging; |
| |
| public abstract class ConnectionWithStatus implements IConnection { |
| |
| /** |
| * whether this connection is available to transfer data. |
| */ |
| public abstract Status status(); |
| |
| public enum Status { |
| |
| /** |
| * we are establishing a active connection with target host. The new data sending request can be buffered for future sending, or |
| * dropped(cases like there is no enough memory). It varies with difference IConnection implementations. |
| */ |
| Connecting, |
| |
| /** |
| * We have a alive connection channel, which can be used to transfer data. |
| */ |
| Ready, |
| |
| /** |
| * The connection channel is closed or being closed. We don't accept further data sending or receiving. All data sending request |
| * will be dropped. |
| */ |
| Closed |
| } |
| |
| } |