Mercurial > dive4elements > framework

annotate artifact-database/src/main/java/org/dive4elements/artifactdatabase/db/SQLExecutor.java @ 570:584591f8203c 3.2.x

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Upgrade to Log4j 2
author Tom Gottfried <tom@intevation.de>
date Mon, 28 Feb 2022 17:41:14 +0100
parents 0e3ecf7cd461
children
rev   line source
475
415df0fc4fa1 Fixed maven group ids
Sascha L. Teichmann <teichmann@intevation.de>
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1 package org.dive4elements.artifactdatabase.db;
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2
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3 import java.sql.Connection;
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4 import java.sql.PreparedStatement;
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5 import java.sql.ResultSet;
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6 import java.sql.SQLException;
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7
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8 import javax.sql.DataSource;
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9
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10 import org.apache.logging.log4j.Logger;
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11 import org.apache.logging.log4j.LogManager;
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13 public class SQLExecutor
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14 {
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15 private static Logger logger = LogManager.getLogger(SQLExecutor.class);
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16
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17 public class Instance {
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18
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19 public Connection conn;
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20 public PreparedStatement stmnt;
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21 public ResultSet result;
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22
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23 public Instance() {
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24 }
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25
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26 public void reset() throws SQLException {
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27 if (result != null) {
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28 result.close();
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29 result = null;
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30 }
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31 if (stmnt != null) {
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32 result = null;
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33 stmnt.close();
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34 }
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35 }
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37 public PreparedStatement prepareStatement(String query)
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38 throws SQLException {
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39 return stmnt = conn.prepareStatement(query);
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40 }
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42 public void close() {
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43 if (result != null) {
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44 try { result.close(); }
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45 catch (SQLException sqle) {}
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46 }
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47 if (stmnt != null) {
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48 try { stmnt.close(); }
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49 catch (SQLException sqle) {}
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50 }
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51 if (conn != null) {
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52 try { conn.close(); }
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53 catch (SQLException sqle) {}
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54 }
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55 }
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56
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57 public boolean runWriteNoRollback() {
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58 DataSource dataSource = dbConnection.getDataSource();
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59 try {
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60 conn = dataSource.getConnection();
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61 try {
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62 conn.setAutoCommit(false);
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63 return doIt();
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64 }
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65 catch (SQLException sqle) {
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66 throw sqle;
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67 }
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68 }
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69 catch (SQLException sqle) {
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70 logger.error(sqle.getLocalizedMessage(), sqle);
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71 }
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72 finally {
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73 close();
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74 }
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75 return false;
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76 }
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77
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78 public boolean runWrite() {
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79 DataSource dataSource = dbConnection.getDataSource();
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80 try {
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81 conn = dataSource.getConnection();
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82 try {
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83 conn.setAutoCommit(false);
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84 return doIt();
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85 }
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86 catch (SQLException sqle) {
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87 conn.rollback();
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88 throw sqle;
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89 }
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90 }
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91 catch (SQLException sqle) {
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92 logger.error(sqle.getLocalizedMessage(), sqle);
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93 }
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94 finally {
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95 close();
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96 }
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97 return false;
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98 }
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100 public boolean runRead() {
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101 DataSource dataSource = dbConnection.getDataSource();
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102 try {
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103 conn = dataSource.getConnection();
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104 return doIt();
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105 }
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106 catch (SQLException sqle) {
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107 logger.error(sqle.getLocalizedMessage(), sqle);
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108 }
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109 finally {
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110 close();
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111 }
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112 return false;
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113 }
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115 public boolean doIt() throws SQLException {
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116 return true;
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117 }
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118 } // class Instance
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119
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120 protected DBConnection dbConnection;
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122 public SQLExecutor() {
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123 }
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124
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125 public SQLExecutor(DBConnection dbConnection) {
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126 this();
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127 this.dbConnection = dbConnection;
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128 }
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129
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130 public DBConnection getDBConnection() {
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131 return dbConnection;
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132 }
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133 }
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134 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
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