Mercurial > dive4elements > gnv-client
annotate geo-backend/src/main/java/de/intevation/gnv/geobackend/sde/connectionpool/ArcSDEPoolableObjectFactory.java @ 551:1f6e2b256247
Improved the Objectvalidation of the ArcSDE-Databaseconnections
geo-backend/trunk@544 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Tim Englich <tim.englich@intevation.de> |
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date | Fri, 15 Jan 2010 10:09:41 +0000 |
parents | ff1b7967e6b9 |
children | 5b536542ef56 |
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1 /** |
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2 * |
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3 */ |
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4 package de.intevation.gnv.geobackend.sde.connectionpool; |
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5 |
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6 import java.sql.Connection; |
265 | 7 import java.sql.SQLException; |
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8 import java.util.Properties; |
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9 |
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10 import org.apache.commons.pool.PoolableObjectFactory; |
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11 import org.apache.log4j.Logger; |
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12 |
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13 import de.intevation.gnv.geobackend.base.connectionpool.exception.ConnectionException; |
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14 import de.intevation.gnv.geobackend.sde.datasources.ArcSDEConnection; |
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15 |
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16 /** |
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17 * @author Tim Englich <tim.englich@intevation.de> |
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18 * |
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19 */ |
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20 public class ArcSDEPoolableObjectFactory implements PoolableObjectFactory { |
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21 |
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22 /** |
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23 * the logger, used to log exceptions and additonaly information |
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24 */ |
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25 private static Logger log = Logger.getLogger(ArcSDEPoolableObjectFactory.class); |
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26 |
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27 private int serverRoundtripInterval = 1000 * 30;// 30 Sekunden |
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28 /** |
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29 * The URL to the ArcSDE Server |
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30 */ |
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31 private String server = null; |
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32 /** |
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33 * The Port the ArcSDE Server is connected to. |
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34 */ |
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35 private String port = null; |
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36 /** |
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37 * The Name of the Database |
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38 */ |
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39 private String database = null; |
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40 /** |
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41 * The Username for the Authentication |
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42 */ |
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43 private String username = null; |
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44 /** |
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45 * The Credentials which belongs to the User |
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46 */ |
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47 private String credentials = null; |
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48 |
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49 /** |
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50 * Constructor of this Class |
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51 * @param properties the Properties which includes the ConnectionParams to the Database |
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52 */ |
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53 public ArcSDEPoolableObjectFactory(Properties properties) { |
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54 log.debug("ArcSDEPoolableObjectFactory.Constructor"); |
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55 this.server = properties.getProperty("server"); |
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56 this.port = properties.getProperty("port"); |
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57 this.database = properties.getProperty("database"); |
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58 this.username = properties.getProperty("username"); |
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59 this.credentials = properties.getProperty("credentials"); |
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60 |
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61 try { |
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62 String serverRoundtripIntervalValue = properties.getProperty("serverRoundtripInterval"); |
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63 if (serverRoundtripIntervalValue != null){ |
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64 this.serverRoundtripInterval = Integer.parseInt(serverRoundtripIntervalValue); |
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65 } |
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66 } catch (NumberFormatException e) { |
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67 log.error(e,e); |
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68 } |
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69 |
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70 log.info("ArcSDEPoolableObjectFactory initialized"); |
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71 log.info("Server: "+this.server); |
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72 log.info("Port: "+this.port); |
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73 log.info("Database: "+this.database); |
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74 log.info("User: "+this.username); |
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75 log.info("Testtimeout: "+this.serverRoundtripInterval); |
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76 |
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77 } |
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78 |
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79 /** |
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80 * @see org.apache.commons.pool.PoolableObjectFactory#activateObject(java.lang.Object) |
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81 */ |
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82 public void activateObject(Object arg0) throws Exception { |
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83 log.debug("ArcSDEPoolableObjectFactory.activateObject"); |
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84 } |
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85 |
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86 /** |
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87 * @see org.apache.commons.pool.PoolableObjectFactory#destroyObject(java.lang.Object) |
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88 */ |
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89 public void destroyObject(Object arg0) throws Exception { |
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90 log.debug("ArcSDEPoolableObjectFactory.destroyObjectb"); |
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91 if (arg0 instanceof ArcSDEConnection) { |
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92 ((ArcSDEConnection)arg0).close(); |
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93 }else{ |
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94 log.warn("Object cannot be handled"); |
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95 } |
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96 } |
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97 |
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98 /** |
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99 * @see org.apache.commons.pool.PoolableObjectFactory#makeObject() |
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100 */ |
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101 public Object makeObject() throws Exception { |
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102 log.debug("ArcSDEPoolableObjectFactory.makeObject"); |
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103 Connection con; |
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104 try { |
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105 con = new ArcSDEConnection(this.server, this.port, this.database, this.username, this.credentials, this.serverRoundtripInterval); |
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106 } |
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107 catch (ConnectionException e) { |
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108 throw new ConnectionException("Establishing a connection to database failed: " + e.toString(), e); |
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109 } |
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110 return con; |
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111 } |
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112 |
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113 /** |
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114 * @see org.apache.commons.pool.PoolableObjectFactory#passivateObject(java.lang.Object) |
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115 */ |
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116 public void passivateObject(Object arg0) throws Exception { |
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117 log.debug("ArcSDEPoolableObjectFactory.passivateObject"); |
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118 } |
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119 |
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120 /** |
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121 * @see org.apache.commons.pool.PoolableObjectFactory#validateObject(java.lang.Object) |
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122 */ |
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123 public boolean validateObject(Object arg0) { |
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124 log.debug("ArcSDEPoolableObjectFactory.validateObject"); |
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125 |
265 | 126 boolean returnValue = false; |
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127 try { |
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128 returnValue = arg0 instanceof ArcSDEConnection |
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129 ? ((ArcSDEConnection)arg0).isValid(this.serverRoundtripInterval) |
265 | 130 : false; |
131 } | |
132 catch (SQLException sqle) {} | |
133 return returnValue; | |
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134 } |
265 | 135 } |