| /* |
| * Copyright 2000-2012 JetBrains s.r.o. |
| * |
| * 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 com.intellij.execution.rmi; |
| |
| import java.rmi.Remote; |
| import java.rmi.RemoteException; |
| import java.rmi.registry.LocateRegistry; |
| import java.rmi.registry.Registry; |
| import java.rmi.server.UnicastRemoteObject; |
| |
| /** |
| * @author gregsh |
| */ |
| public interface RemoteDeadHand extends Remote { |
| |
| String BINDING_NAME = "_DEAD_HAND_"; |
| |
| /** |
| * @return time in milliseconds to wait till the next ping. |
| * Negative return value means "terminate", 0 means "live forever" and should be avoided. |
| */ |
| long ping(String id) throws RemoteException; |
| |
| class TwoMinutesTurkish extends RemoteObject implements RemoteDeadHand { |
| |
| private static final TwoMinutesTurkish ourCook = new TwoMinutesTurkish(); |
| private static final Remote ourHand; |
| private static long ourAskedThatManyTimes; |
| |
| static { |
| Remote remote; |
| try { |
| remote = UnicastRemoteObject.exportObject(ourCook, 0); |
| } |
| catch (RemoteException e) { |
| throw new IllegalStateException(e); |
| } |
| ourHand = remote; |
| } |
| |
| public long ping(String id) throws RemoteException { |
| //noinspection AssignmentToStaticFieldFromInstanceMethod |
| ourAskedThatManyTimes ++; |
| return 2 * 60 * 1000L; |
| } |
| |
| public static void startCooking(String host, int port) throws Exception { |
| final Registry registry = LocateRegistry.getRegistry(host, port); |
| registry.bind(RemoteDeadHand.BINDING_NAME, ourHand); |
| } |
| } |
| } |