| package org.apache.lucene.store; |
| |
| /* |
| * 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. |
| */ |
| |
| import java.io.IOException; |
| import java.io.File; |
| |
| /** |
| * Simple standalone tool that forever acquires & releases a |
| * lock using a specific LockFactory. Run without any args |
| * to see usage. |
| * |
| * @see VerifyingLockFactory |
| * @see LockVerifyServer |
| */ |
| |
| public class LockStressTest { |
| |
| public static void main(String[] args) throws Exception { |
| |
| if (args.length != 6) { |
| System.out.println("\nUsage: java org.apache.lucene.store.LockStressTest myID verifierHostOrIP verifierPort lockFactoryClassName lockDirName sleepTime\n" + |
| "\n" + |
| " myID = int from 0 .. 255 (should be unique for test process)\n" + |
| " verifierHostOrIP = host name or IP address where LockVerifyServer is running\n" + |
| " verifierPort = port that LockVerifyServer is listening on\n" + |
| " lockFactoryClassName = primary LockFactory class that we will use\n" + |
| " lockDirName = path to the lock directory (only set for Simple/NativeFSLockFactory\n" + |
| " sleepTimeMS = milliseconds to pause betweeen each lock obtain/release\n" + |
| "\n" + |
| "You should run multiple instances of this process, each with its own\n" + |
| "unique ID, and each pointing to the same lock directory, to verify\n" + |
| "that locking is working correctly.\n" + |
| "\n" + |
| "Make sure you are first running LockVerifyServer.\n" + |
| "\n"); |
| System.exit(1); |
| } |
| |
| final int myID = Integer.parseInt(args[0]); |
| |
| if (myID < 0 || myID > 255) { |
| System.out.println("myID must be a unique int 0..255"); |
| System.exit(1); |
| } |
| |
| final String verifierHost = args[1]; |
| final int verifierPort = Integer.parseInt(args[2]); |
| final String lockFactoryClassName = args[3]; |
| final String lockDirName = args[4]; |
| final int sleepTimeMS = Integer.parseInt(args[5]); |
| |
| LockFactory lockFactory; |
| try { |
| lockFactory = Class.forName(lockFactoryClassName).asSubclass(LockFactory.class).newInstance(); |
| } catch (IllegalAccessException e) { |
| throw new IOException("IllegalAccessException when instantiating LockClass " + lockFactoryClassName); |
| } catch (InstantiationException e) { |
| throw new IOException("InstantiationException when instantiating LockClass " + lockFactoryClassName); |
| } catch (ClassCastException e) { |
| throw new IOException("unable to cast LockClass " + lockFactoryClassName + " instance to a LockFactory"); |
| } catch (ClassNotFoundException e) { |
| throw new IOException("unable to find LockClass " + lockFactoryClassName); |
| } |
| |
| File lockDir = new File(lockDirName); |
| |
| if (lockFactory instanceof FSLockFactory) { |
| ((FSLockFactory) lockFactory).setLockDir(lockDir); |
| } |
| |
| lockFactory.setLockPrefix("test"); |
| |
| LockFactory verifyLF = new VerifyingLockFactory((byte) myID, lockFactory, verifierHost, verifierPort); |
| |
| Lock l = verifyLF.makeLock("test.lock"); |
| |
| while(true) { |
| |
| boolean obtained = false; |
| |
| try { |
| obtained = l.obtain(10); |
| } catch (LockObtainFailedException e) { |
| System.out.print("x"); |
| } |
| |
| if (obtained) { |
| System.out.print("l"); |
| l.release(); |
| } |
| Thread.sleep(sleepTimeMS); |
| } |
| } |
| } |