Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/utils/MapUtils.java @ 4873:2b371e42a9af

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Add HWS Lines parameters and ogr_connection example
author Andre Heinecke <aheinecke@intevation.de>
date Fri, 25 Jan 2013 10:34:47 +0100
parents ad0990a82ab8
children 48b231a02d3a
rev   line source
4841
ad0990a82ab8 Insert db connection into riveraxis map files.
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1 package de.intevation.flys.utils;
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2
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3 import java.util.regex.Matcher;
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4 import java.util.regex.Pattern;
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5
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6 import org.apache.log4j.Logger;
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7 import org.hibernate.impl.SessionFactoryImpl;
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8
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9 import de.intevation.flys.backend.SessionFactoryProvider;
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10
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11
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12 public class MapUtils
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13 {
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14 private static final Logger logger = Logger.getLogger(MapUtils.class);
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15
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16 public static final Pattern DB_URL_PATTERN =
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17 Pattern.compile("(.*)\\/\\/(.*):([0-9]+)\\/([a-zA-Z]+)");
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18
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19 public static final Pattern DB_PSQL_URL_PATTERN =
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20 Pattern.compile("(.*)\\/\\/(.*):([0-9]+)\\/([a-zA-Z0-9]+)");
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21
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22 /**
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23 * This method returns a connection string for databases used by
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24 * Mapserver's Mapfile.
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25 *
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26 * @return A connection string for Mapserver.
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27 */
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28 public static String getConnection() {
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29 SessionFactoryImpl sf = (SessionFactoryImpl)
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30 SessionFactoryProvider.getSessionFactory();
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31
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32 String user = SessionFactoryProvider.getUser(sf);
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33 String pass = SessionFactoryProvider.getPass(sf);
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34 String url = SessionFactoryProvider.getURL(sf);
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35
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36 logger.debug("Parse connection url: " + url);
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37
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38 Matcher m = DB_URL_PATTERN.matcher(url);
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39 if (!m.matches()) {
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40 logger.warn("Could not parse Connection string." +
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41 "Try to parse PostgreSQL string.");
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42 // maybe this is a PostgreSQL connection...
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43 return getPostgreSQLConnection();
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44 }
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45
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46 logger.debug("Groups for connection string: " + m.groupCount());
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47 int groups = m.groupCount();
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48
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49 for (int i = 0; i <= groups; i++) {
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50 logger.debug("Group " + i + ": " + m.group(i));
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51 }
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52
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53 String connection = null;
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54
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55 if (FLYSUtils.isUsingOracle()) {
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56 if (groups < 3) {
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57 logger.warn("Could only partially parse connection string.");
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58 return null;
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59 }
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60
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61 String host = m.group(2);
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62 String port = m.group(3);
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63
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64 connection = user + "/" + pass + "@" + host;
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65 }
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66 else {
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67 if (groups < 4) {
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68 logger.warn("Could only partially parse connection string.");
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69 return null;
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70 }
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71
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72 String host = m.group(2);
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73 String port = m.group(3);
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74 String db = m.group(4);
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75
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76 StringBuilder sb = new StringBuilder();
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77 sb.append("dbname=" + db);
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78 sb.append("host='" + host + "'");
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79 sb.append("port=" + port);
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80 sb.append("password='" + pass + "'");
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81 sb.append("sslmode=disable");
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82
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83 connection = sb.toString();
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84 }
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85
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86 return connection;
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87 }
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88
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89 protected static String getPostgreSQLConnection() {
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90 SessionFactoryImpl sf = (SessionFactoryImpl)
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91 SessionFactoryProvider.getSessionFactory();
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92
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93 String user = SessionFactoryProvider.getUser(sf);
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94 String pass = SessionFactoryProvider.getPass(sf);
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95 String url = SessionFactoryProvider.getURL(sf);
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96
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97 Matcher m = DB_PSQL_URL_PATTERN.matcher(url);
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98 if (!m.matches()) {
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99 logger.warn("Could not parse PostgreSQL Connection string.");
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100 return null;
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101 }
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102
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103 int groups = m.groupCount();
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104 logger.debug("Groups for PostgreSQL connection string: " + groups);
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105
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106 if (logger.isDebugEnabled()) {
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107 for (int i = 0; i <= groups; i++) {
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108 logger.debug("Group " + i + ": " + m.group(i));
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109 }
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110 }
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111
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112 String connection = null;
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113
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114 if (groups < 4) {
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115 logger.warn("Could only partially parse connection string.");
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116 return null;
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117 }
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118
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119 String host = m.group(2);
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120 String port = m.group(3);
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121 String db = m.group(4);
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122
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123 StringBuilder sb = new StringBuilder();
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124 sb.append("dbname=" + db);
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125 sb.append(" host='" + host + "'");
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126 sb.append(" port=" + port);
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127 sb.append(" user=" + user);
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128 sb.append(" password='" + pass + "'");
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129 sb.append(" sslmode=disable");
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130
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131 connection = sb.toString();
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132
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133 logger.debug("Created connection: '" + connection + "'");
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134
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135 return connection;
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136 }
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137
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138 public static String getConnectionType() {
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139 return FLYSUtils.isUsingOracle() ? "oraclespatial" : "postgis";
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140 }
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141 }
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