| Clover coverage report - |
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| Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
| DatabaseShutdownHandler.java | 100% | 93.8% | 100% | 95.5% |
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| 1 | /* | |
| 2 | * Licensed to the Apache Software Foundation (ASF) under one or more | |
| 3 | * contributor license agreements. See the NOTICE file distributed with | |
| 4 | * this work for additional information regarding copyright ownership. | |
| 5 | * The ASF licenses this file to You under the Apache License, Version 2.0 | |
| 6 | * (the "License"); you may not use this file except in compliance with | |
| 7 | * the License. You may obtain a copy of the License at | |
| 8 | * | |
| 9 | * http://www.apache.org/licenses/LICENSE-2.0 | |
| 10 | * | |
| 11 | * Unless required by applicable law or agreed to in writing, software | |
| 12 | * distributed under the License is distributed on an "AS IS" BASIS, | |
| 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| 14 | * See the License for the specific language governing permissions and | |
| 15 | * limitations under the License. | |
| 16 | * | |
| 17 | */ | |
| 18 | package org.apache.xindice.core; | |
| 19 | ||
| 20 | import java.util.HashSet; | |
| 21 | import java.util.Iterator; | |
| 22 | import java.util.Map; | |
| 23 | import java.util.Set; | |
| 24 | ||
| 25 | /** | |
| 26 | * Going to handle the JVM Shutdown hook and insuring clean shutdown | |
| 27 | * of all registered Database instances. | |
| 28 | * | |
| 29 | * @author <a href="mailto:toddbyrne@gmail.com">Todd Byrne</a> | |
| 30 | * @version $Revision: 717977 $, $Date: 2008-11-16 04:35:08 +0000 (Sun, 16 Nov 2008) $ | |
| 31 | */ | |
| 32 | public class DatabaseShutdownHandler implements Runnable { | |
| 33 | ||
| 34 | private final Set databases; | |
| 35 | ||
| 36 | ||
| 37 | 19 | public DatabaseShutdownHandler() { |
| 38 | 19 | databases = new HashSet(); |
| 39 | 19 | Runtime.getRuntime().addShutdownHook(new Thread(this)); |
| 40 | } | |
| 41 | ||
| 42 | /** | |
| 43 | * @param db database to register | |
| 44 | */ | |
| 45 | 123 | public void registerDatabase(Database db) { |
| 46 | 123 | synchronized (databases) { |
| 47 | 123 | databases.add(db); |
| 48 | } | |
| 49 | } | |
| 50 | ||
| 51 | /** | |
| 52 | * @param db removed the database from the hashtable | |
| 53 | */ | |
| 54 | 119 | public void removeDatabase(Database db) { |
| 55 | 119 | synchronized (databases) { |
| 56 | 119 | databases.remove(db); |
| 57 | } | |
| 58 | } | |
| 59 | ||
| 60 | /** | |
| 61 | * Cleans up any unclosed databases before the JVM exits. | |
| 62 | */ | |
| 63 | 19 | public void run() { |
| 64 | 19 | synchronized (databases) { |
| 65 | 19 | Iterator dbs = databases.iterator(); |
| 66 | 19 | while (dbs.hasNext()) { |
| 67 | 4 | Database db = (Database) dbs.next(); |
| 68 | ||
| 69 | // synch again on the db object just incase a close operation | |
| 70 | // is happening on a different thread | |
| 71 | 4 | synchronized (db) { |
| 72 | // call close but don't bother removing the db from the database | |
| 73 | // table | |
| 74 | 4 | try { |
| 75 | 4 | db.close(false); |
| 76 | 4 | System.out.println("SHUTDOWN Dirty close on: " + db.getName()); |
| 77 | } catch (DBException e) { | |
| 78 | 0 | System.out.println("SHUTDOWN Failed to close: " + db.getName() + ": " + e); |
| 79 | } | |
| 80 | } | |
| 81 | } | |
| 82 | ||
| 83 | 19 | databases.clear(); |
| 84 | } | |
| 85 | } | |
| 86 | } |
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