Mercurial > dive4elements > gnv-client

comparison geo-backend/src/main/java/de/intevation/gnv/geobackend/base/connectionpool/ConnectionPoolFactory.java @ 132:5a583cff97ea

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Implementation of the Datainfrastructure for fetching Data from different DataStores. geo-backend/trunk@12 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Tim Englich <tim.englich@intevation.de>
date Fri, 04 Sep 2009 08:11:30 +0000
parents e4eacd613356
children 210716612c30
comparison
equal deleted inserted replaced
131:d8ff739b9f3b 132:5a583cff97ea
14 * This factory delivers Instances of the Interface ConnectionPool. 14 * This factory delivers Instances of the Interface ConnectionPool.
15 * @author Tim Englich <tim.englich@intevation.de> 15 * @author Tim Englich <tim.englich@intevation.de>
16 */ 16 */
17 public class ConnectionPoolFactory { 17 public class ConnectionPoolFactory {
18 18
19 19 /**
20 /**
21 * the logger, used to log exceptions and additonaly information 20 * the logger, used to log exceptions and additonaly information
22 */ 21 */
23 private static Logger log = Logger.getLogger(ConnectionPoolFactory.class); 22 private static Logger log = Logger.getLogger(ConnectionPoolFactory.class);
24 23
25 24
26 /** 25 /**
27 * The singleton Instance of this Factory. 26 * The singleton Instance of this Factory.
28 */ 27 */
29 private static ConnectionPoolFactory instance = null; 28 private static ConnectionPoolFactory instance = null;
30 29
31 /** 30 /**
32 * The ConnectionPool providing the Connections to the DatabaseBackends 31 * The ConnectionPool providing the Connections to the DatabaseBackends
33 */ 32 */
34 private ConnectionPool connectionPool = null; 33 private ConnectionPool connectionPool = null;
35 34
36 /** 35 /**
37 * Basic-Constructor of this Class 36 * Basic-Constructor of this Class
38 */ 37 */
39 private ConnectionPoolFactory() { 38 private ConnectionPoolFactory() {
40 super(); 39 super();
41 } 40 }
42 41
43 42 /**
44 /** 43 * This Method provides an singleton Instance of this Class.
45 * This Method provides an singleton Instance of this Class. 44 * @return an singleton Instance of this Class
46 * @return an singleton Instance of this Class 45 */
47 */ 46 public static ConnectionPoolFactory getInstance(){
48 public static ConnectionPoolFactory getInstance(){ 47 if (instance == null){
49 if (instance == null){ 48 instance = new ConnectionPoolFactory();
50 instance = new ConnectionPoolFactory(); 49 }
51 } 50 return instance;
52 return instance; 51 }
53 } 52
54 53
55 54 /**
56 /** 55 * Getting the ConnectionPool
57 * Getting the ConnectionPool 56 * @return the ConnectionPool
58 * @return the ConnectionPool 57 */
59 */ 58 public ConnectionPool getConnectionPool(){
60 public ConnectionPool getConnectionPool(){ 59 return this.connectionPool;
61 return this.connectionPool; 60 }
62 } 61
63 62 /**
64 63 * Initializes the ConnectionPool.
65 /** 64 * Should only be called once on system startup
66 * Initializes the ConnectionPool. 65 * @param properties the Properties for the Individual Configuration of the ConnectionPool
67 * Should only be called once on system startup 66 */
68 * @param properties the Properties for the Individual Configuration of the ConnectionPool 67 public void initializeConnectionPool(Properties properties){
69 */ 68 log.debug("ConnectionPoolFactory.initializeConnectionPool");
70 public void initializeConnectionPool(Properties properties){ 69 if (this.connectionPool == null){
71 log.debug("ConnectionPoolFactory.initializeConnectionPool"); 70 //TODO: Hier könnte anhand eines Flags die Instanz des Connectionpools umgeschaltet werden.
72 if (this.connectionPool == null){ 71 this.connectionPool = new ArcSDEConnectionPool();
73 //TODO: Hier könnte anhand eines Flags die Instanz des Connectionpools umgeschaltet werden. 72 this.connectionPool.initialize(properties);
74 this.connectionPool = new ArcSDEConnectionPool(); 73 }else{
75 this.connectionPool.initialize(properties); 74 log.warn("ConnectionPool already initialized");
76 }else{ 75 }
77 log.warn("ConnectionPool already initialized"); 76 }
78 } 77
79 } 78 /**
80 79 * Checks if the ConnectionPool has already been initialized.
81 /** 80 * @return true if the ConnectionPool is initialized.
82 * Checks if the ConnectionPool has already been initialized. 81 */
83 * @return true if the ConnectionPool is initialized. 82 public boolean isInitialized(){
84 */ 83 return this.connectionPool != null;
85 public boolean isInitialized(){ 84 }
86 return this.connectionPool != null;
87 }
88 } 85 }
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