Mercurial > hg > monetdb-java

annotate src/main/java/org/monetdb/mcl/net/ClientInfo.java @ 911:95be1b83ae86

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Add copyright info
author Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
date Thu, 18 Jul 2024 18:35:25 +0200 (9 months ago)
parents cc6425e98017
children 2543e24eb79a
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911
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1 /*
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2 * SPDX-License-Identifier: MPL-2.0
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3 *
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4 * This Source Code Form is subject to the terms of the Mozilla Public
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5 * License, v. 2.0. If a copy of the MPL was not distributed with this
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6 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
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7 *
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8 * Copyright 2024 MonetDB Foundation;
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9 * Copyright August 2008 - 2023 MonetDB B.V.;
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10 * Copyright 1997 - July 2008 CWI.
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11 */
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12
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13 package org.monetdb.mcl.net;
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14
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15 import org.monetdb.jdbc.MonetDriver;
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16
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17 import java.io.File;
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18 import java.lang.management.ManagementFactory;
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19 import java.lang.management.RuntimeMXBean;
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20 import java.net.InetAddress;
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21 import java.net.UnknownHostException;
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22 import java.sql.ClientInfoStatus;
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23 import java.sql.SQLClientInfoException;
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24 import java.sql.SQLException;
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25 import java.sql.SQLWarning;
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26 import java.util.HashMap;
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27 import java.util.Map;
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28 import java.util.Properties;
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29 import java.util.Set;
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30
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31 /**
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32 * Manage ClientInfo properties to track, and help generating a
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33 * @{link SQLClientInfoException} if there is a failure
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34 */
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35 public class ClientInfo {
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36 public static final String defaultHostname = findHostname();
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37
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38 public static final String defaultClientLibrary = findClientLibrary();
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39
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40 public static final String defaultApplicationName = findApplicationName();
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41
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42 public static final String defaultPid = findPid();
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43
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44 private final Properties props;
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45 private HashMap<String, ClientInfoStatus> problems = null;
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46
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47 public ClientInfo() {
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48 props = new Properties();
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49 }
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50
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51 public void setDefaults() {
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52 props.setProperty("ClientHostname", defaultHostname);
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53 props.setProperty("ClientLibrary", defaultClientLibrary);
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54 props.setProperty("ClientPid", defaultPid);
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55 props.setProperty("ApplicationName", defaultApplicationName);
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56 props.setProperty("ClientRemark", "");
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57 }
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58
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59 private static String findHostname() {
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60 try {
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61 return InetAddress.getLocalHost().getHostName();
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62 } catch (UnknownHostException e) {
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63 return "";
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64 }
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65 }
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66
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67 private static String findApplicationName() {
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68 String appName = "";
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69 try {
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70 String prop = System.getProperty("sun.java.command");
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71 if (prop != null) {
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72 // we want only the command, and not the arguments
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73 prop = prop.split("\\s", 2)[0];
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74 // keep only the basename5
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75 int idx = prop.lastIndexOf(File.separatorChar);
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76 if (idx >= 0)
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77 prop = prop.substring(idx + 1);
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78 appName = prop;
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79 }
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80 } catch (SecurityException e) {
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81 // ignore
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82 }
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83
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84 return appName;
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85 }
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86
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87 private static String findPid() {
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88 try {
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89 RuntimeMXBean mxbean = ManagementFactory.getRuntimeMXBean();
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90 String pidAtHostname = mxbean.getName();
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91 return pidAtHostname.split("@", 2)[0];
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92 } catch (RuntimeException e) {
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93 return "";
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94 }
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95 }
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96
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97 private static String findClientLibrary() {
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98 return "monetdb-java " + MonetDriver.getDriverVersion();
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99 }
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100
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101 public String format() {
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102 StringBuilder builder = new StringBuilder(200);
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103 for (String name : props.stringPropertyNames()) {
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104 String value = props.getProperty(name);
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105 builder.append(name);
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106 builder.append('=');
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107 builder.append(value);
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108 builder.append('\n');
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109 }
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110 return builder.toString();
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111 }
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112
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113 public Properties get() {
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114 return props;
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115 }
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116
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117 public HashMap<String,ClientInfoStatus> getProblems() {
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118 return problems;
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119 }
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120
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121 public void set(String name, String value, Set<String> known) throws SQLClientInfoException {
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122 if (value == null)
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123 value = "";
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124
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125 if (known != null && !known.contains(name)) {
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126 addProblem(name, ClientInfoStatus.REASON_UNKNOWN_PROPERTY);
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127 } else if (value.contains("\n")) {
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128 addProblem(name, ClientInfoStatus.REASON_VALUE_INVALID);
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129 throw new SQLClientInfoException("Invalid value for Client Info property '" + name + "'", "01M07", problems);
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130 } else {
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131 props.setProperty(name, value);
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132 }
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133 }
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134
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Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
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135 public void set(String name, String value) throws SQLClientInfoException {
a52bc2dcdb8c Implement ClientInfo API
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
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136 set(name, value, null);
a52bc2dcdb8c Implement ClientInfo API
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
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137 }
a52bc2dcdb8c Implement ClientInfo API
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
parents: 904
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138
a52bc2dcdb8c Implement ClientInfo API
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
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139 private void addProblem(String name, ClientInfoStatus status) {
a52bc2dcdb8c Implement ClientInfo API
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
parents: 904
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140 if (problems == null)
a52bc2dcdb8c Implement ClientInfo API
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
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141 problems = new HashMap<>();
a52bc2dcdb8c Implement ClientInfo API
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
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142 ClientInfoStatus old = problems.get(name);
a52bc2dcdb8c Implement ClientInfo API
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
parents: 904
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143 if (old == null || status.compareTo(old) > 0)
a52bc2dcdb8c Implement ClientInfo API
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
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144 problems.put(name, status);
a52bc2dcdb8c Implement ClientInfo API
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
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145 }
a52bc2dcdb8c Implement ClientInfo API
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
parents: 904
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146
a52bc2dcdb8c Implement ClientInfo API
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
parents: 904
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147 public SQLClientInfoException wrapException(SQLException e) {
a52bc2dcdb8c Implement ClientInfo API
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
parents: 904
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148 return new SQLClientInfoException(problems, e);
a52bc2dcdb8c Implement ClientInfo API
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
parents: 904
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149 }
a52bc2dcdb8c Implement ClientInfo API
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
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150
a52bc2dcdb8c Implement ClientInfo API
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
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151 public SQLWarning warnings() {
a52bc2dcdb8c Implement ClientInfo API
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
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152 SQLWarning ret = null;
a52bc2dcdb8c Implement ClientInfo API
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
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153 if (problems == null)
a52bc2dcdb8c Implement ClientInfo API
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
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154 return null;
a52bc2dcdb8c Implement ClientInfo API
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
parents: 904
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155 for (Map.Entry<String, ClientInfoStatus> entry: problems.entrySet()) {
a52bc2dcdb8c Implement ClientInfo API
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
parents: 904
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156 if (!entry.getValue().equals(ClientInfoStatus.REASON_UNKNOWN_PROPERTY))
a52bc2dcdb8c Implement ClientInfo API
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
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157 continue;
a52bc2dcdb8c Implement ClientInfo API
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
parents: 904
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158 SQLWarning warning = new SQLWarning("unknown client info property: " + entry.getKey(), "01M07");
a52bc2dcdb8c Implement ClientInfo API
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159 if (ret == null)
a52bc2dcdb8c Implement ClientInfo API
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160 ret = warning;
a52bc2dcdb8c Implement ClientInfo API
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
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161 else
a52bc2dcdb8c Implement ClientInfo API
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
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162 ret.setNextWarning(warning);
a52bc2dcdb8c Implement ClientInfo API
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
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163 }
a52bc2dcdb8c Implement ClientInfo API
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
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164 return ret;
a52bc2dcdb8c Implement ClientInfo API
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
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165 }
903
778959b2e0a4 Send ClientInfo on startup
Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
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166 }