| /* |
| * 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.uima.collection.impl.cpm.utils; |
| |
| import java.util.HashMap; |
| |
| import org.apache.uima.UIMAFramework; |
| import org.apache.uima.collection.impl.cpm.engine.CPMEngine; |
| import org.apache.uima.util.Level; |
| |
| |
| /** |
| * Facilitates cleaning up resources associated with chunking/sequencing logic. |
| * |
| */ |
| public class ExpirationTimer extends Thread { |
| |
| /** The time out. */ |
| private final long timeOut; |
| |
| /** The map. */ |
| private final HashMap map; |
| |
| /** The key. */ |
| private final String key; |
| |
| /** The cpm. */ |
| CPMEngine cpm = null; |
| |
| /** |
| * Constructs a Timer that expires after a given interval. It keeps the map from growing |
| * indefinitely. Its main purpose is to remove entries from a given map using a provided key. |
| * |
| * @param aTimeout the a timeout |
| * @param aMap the a map |
| * @param aKey the a key |
| * @param aCpm the a cpm |
| */ |
| public ExpirationTimer(long aTimeout, HashMap aMap, String aKey, CPMEngine aCpm) { |
| super(); |
| timeOut = aTimeout; |
| map = aMap; |
| key = aKey; |
| cpm = aCpm; |
| } |
| |
| /** |
| * Sleeps until a given timeout occurs. When awaken this timer deletes an entry in the shared |
| * HashMap using provided key. The map holds docId's that have been split into chunks. |
| * |
| */ |
| @Override |
| public void run() { |
| try { |
| Thread.sleep(timeOut); |
| } catch (InterruptedException e) { |
| } |
| |
| if (map.containsKey(key)) { |
| if (UIMAFramework.getLogger().isLoggable(Level.FINEST)) { |
| UIMAFramework.getLogger(this.getClass()).logrb(Level.FINEST, this.getClass().getName(), |
| "process", CPMUtils.CPM_LOG_RESOURCE_BUNDLE, "UIMA_CPM_timer_expired__FINEST", |
| new Object[] { Thread.currentThread().getName(), key, String.valueOf(map.size()) }); |
| } |
| synchronized (map) { |
| map.remove(key); |
| } |
| } |
| } |
| |
| } |