Mercurial > dive4elements > river
annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/datacage/Datacage.java @ 986:70545233f8ee
Datacage: Add users at initial scan.
flys-artifacts/trunk@2418 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
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date | Thu, 28 Jul 2011 15:07:20 +0000 |
parents | 2b05c4a0c6fd |
children | 82ef338fee91 |
rev | line source |
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1 package de.intevation.flys.artifacts.datacage; |
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2 |
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3 import java.sql.SQLException; |
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4 |
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5 import de.intevation.artifacts.GlobalContext; |
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6 |
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7 import de.intevation.artifactdatabase.db.SQL; |
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8 import de.intevation.artifactdatabase.db.SQLExecutor; |
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9 |
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10 import de.intevation.artifactdatabase.LifetimeListener; |
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11 |
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12 import de.intevation.artifacts.Artifact; |
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13 import de.intevation.artifacts.ArtifactDatabase; |
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14 import de.intevation.artifacts.ArtifactDatabaseException; |
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15 |
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16 import de.intevation.flys.artifacts.FLYSArtifact; |
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17 |
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18 import de.intevation.artifacts.common.utils.LRUCache; |
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19 |
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20 import org.apache.log4j.Logger; |
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21 |
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22 import org.w3c.dom.Document; |
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23 |
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24 public class Datacage |
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25 implements LifetimeListener |
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26 { |
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27 private static Logger log = Logger.getLogger(Datacage.class); |
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28 |
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29 public static final String ARTEFACT_DATABASE_KEY = |
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30 "global.artifact.database"; |
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31 |
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32 private String SQL_DELETE_ALL_USERS = "delete.all.users"; |
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33 private String SQL_USER_ID_NEXTVAL = "user.id.nextval"; |
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34 private String SQL_USER_BY_GID = "user.by.gid"; |
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35 private String SQL_INSERT_USER = "insert.user"; |
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36 |
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parents:
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37 protected SQLExecutor sqlExecutor; |
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parents:
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38 |
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39 public class InitialScan |
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40 implements ArtifactDatabase.ArtifactLoadedCallback |
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41 { |
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42 protected LRUCache<String, Integer> users; |
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43 protected LRUCache<String, Integer> collections; |
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44 |
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45 public InitialScan() { |
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46 users = new LRUCache<String, Integer>(); |
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47 collections = new LRUCache<String, Integer>(); |
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48 } |
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49 |
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50 @Override |
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51 public void artifactLoaded( |
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52 String userId, |
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53 String collectionId, |
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54 String artifactId, |
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55 Artifact artifact |
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56 ) { |
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57 if (!(artifact instanceof FLYSArtifact)) { |
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58 log.warn("ignoring none FLYS artifacts"); |
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59 return; |
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60 } |
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61 |
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62 FLYSArtifact flysArtifact = (FLYSArtifact)artifact; |
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63 |
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64 Integer uId = getUserId(userId); |
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65 // TODO: implement me! |
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66 } |
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67 |
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68 protected Integer getUserId(final String userId) { |
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69 Integer u = users.get(userId); |
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70 if (u != null) { |
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71 return u; |
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72 } |
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73 |
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74 final Integer [] res = new Integer[1]; |
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75 |
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76 SQLExecutor.Instance exec = sqlExecutor.new Instance() { |
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77 @Override |
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78 public boolean doIt() throws SQLException { |
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79 prepareStatement(SQL_USER_BY_GID); |
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80 stmnt.setString(1, userId); |
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81 result = stmnt.executeQuery(); |
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82 if (!result.next()) { |
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83 return false; |
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84 } |
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85 res[0] = result.getInt(1); |
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86 return true; |
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87 } |
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88 }; |
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89 |
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90 if (exec.runRead()) { |
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91 users.put(userId, res[0]); |
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92 return res[0]; |
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93 } |
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94 |
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95 exec = sqlExecutor.new Instance() { |
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96 @Override |
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97 public boolean doIt() throws SQLException { |
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98 prepareStatement(SQL_USER_ID_NEXTVAL); |
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99 result = stmnt.executeQuery(); |
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100 if (!result.next()) { |
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101 return false; |
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102 } |
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103 res[0] = result.getInt(1); |
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104 reset(); |
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105 prepareStatement(SQL_INSERT_USER); |
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106 stmnt.setInt (1, res[0]); |
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107 stmnt.setString(2, userId); |
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108 stmnt.execute(); |
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109 return true; |
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110 } |
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111 }; |
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112 |
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113 if (exec.runWrite()) { |
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114 users.put(userId, res[0]); |
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115 return res[0]; |
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116 } |
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117 |
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118 return null; |
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119 } |
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120 |
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121 public boolean scan(ArtifactDatabase adb) { |
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122 try { |
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123 adb.loadAllArtifacts(this); |
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124 } |
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125 catch (ArtifactDatabaseException ade) { |
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126 log.error(ade); |
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127 return false; |
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128 } |
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129 return true; |
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130 } |
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131 } // class InitialScan |
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132 |
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133 |
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134 public Datacage() { |
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135 } |
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136 |
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137 @Override |
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138 public void setup(Document document) { |
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139 log.debug("setup"); |
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140 DBConfig config = DBConfig.getInstance(); |
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141 setupSQL(config.getSQL()); |
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142 sqlExecutor = new SQLExecutor(config.getDBConnection()); |
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143 } |
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144 |
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145 protected void setupSQL(SQL sql) { |
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146 SQL_DELETE_ALL_USERS = sql.get(SQL_DELETE_ALL_USERS); |
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147 SQL_USER_ID_NEXTVAL = sql.get(SQL_USER_ID_NEXTVAL); |
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148 SQL_USER_BY_GID = sql.get(SQL_USER_BY_GID); |
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149 SQL_INSERT_USER = sql.get(SQL_INSERT_USER); |
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150 } |
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151 |
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152 @Override |
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153 public void systemUp(GlobalContext context) { |
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154 log.debug("systemUp"); |
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155 initialScan(context); |
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156 } |
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157 |
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158 protected void initialScan(GlobalContext context) { |
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159 log.debug("initialScan"); |
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160 |
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161 Object adbObject = context.get(ARTEFACT_DATABASE_KEY); |
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162 |
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163 if (!(adbObject instanceof ArtifactDatabase)) { |
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164 log.error("missing artefact database. Cannot scan"); |
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165 return; |
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166 } |
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167 |
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168 ArtifactDatabase adb = (ArtifactDatabase)adbObject; |
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169 |
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170 if (!cleanDatabase()) { |
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171 log.error("cleaning database failed"); |
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172 return; |
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173 } |
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174 |
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175 InitialScan is = new InitialScan(); |
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176 |
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177 if (!is.scan(adb)) { |
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178 log.error("initial scan failed"); |
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179 return; |
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180 } |
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181 |
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182 } |
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183 |
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184 protected boolean cleanDatabase() { |
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185 |
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186 return sqlExecutor.new Instance() { |
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187 @Override |
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188 public boolean doIt() throws SQLException { |
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189 prepareStatement(SQL_DELETE_ALL_USERS); |
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190 stmnt.execute(); |
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191 return true; |
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192 } |
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193 }.runWrite(); |
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194 } |
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195 |
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196 |
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197 @Override |
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198 public void systemDown(GlobalContext context) { |
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199 log.debug("systemDown"); |
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200 } |
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201 } |
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202 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |