| /* |
| * 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.dubbo.common.deploy; |
| |
| import org.apache.dubbo.rpc.model.ScopeModel; |
| |
| import java.util.concurrent.Future; |
| |
| public interface Deployer<E extends ScopeModel> { |
| |
| /** |
| * Initialize the component |
| */ |
| void initialize() throws IllegalStateException; |
| |
| /** |
| * Starts the component. |
| * @return |
| */ |
| Future start() throws IllegalStateException; |
| |
| /** |
| * Stops the component. |
| */ |
| void stop() throws IllegalStateException; |
| |
| /** |
| * @return true if the component is added and waiting to start |
| */ |
| boolean isPending(); |
| |
| /** |
| * @return true if the component is starting or has been started. |
| */ |
| boolean isRunning(); |
| |
| /** |
| * @return true if the component has been started. |
| * @see #start() |
| * @see #isStarting() |
| */ |
| boolean isStarted(); |
| |
| /** |
| * @return true if the component is starting. |
| * @see #isStarted() |
| */ |
| boolean isStarting(); |
| |
| /** |
| * @return true if the component is stopping. |
| * @see #isStopped() |
| */ |
| boolean isStopping(); |
| |
| /** |
| * @return true if the component is stopping. |
| * @see #isStopped() |
| */ |
| boolean isStopped(); |
| |
| /** |
| * @return true if the component has failed to start or has failed to stop. |
| */ |
| boolean isFailed(); |
| |
| /** |
| * @return current state |
| */ |
| DeployState getState(); |
| |
| void addDeployListener(DeployListener<E> listener); |
| |
| void removeDeployListener(DeployListener<E> listener); |
| |
| Throwable getError(); |
| } |