Mercurial > postarc > postarc
comparison Postarc/Postarc/PostGISConnection.cs @ 0:1aca3d413885 tip
Initial import of Postarc
| author | Christian Lins <christian.lins@intevation.de> |
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| date | Fri, 05 Oct 2012 23:55:06 +0200 |
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| -1:000000000000 | 0:1aca3d413885 |
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| 1 /* | |
| 2 * Postarc | |
| 3 * | |
| 4 * Author: | |
| 5 * Christian Lins <christian.lins@intevation.de> | |
| 6 * | |
| 7 * Copyright: | |
| 8 * Copyright (C) 2012 Intevation GmbH <http://www.intevation.de/> | |
| 9 * | |
| 10 * This program is free software: you can redistribute it and/or modify | |
| 11 * it under the terms of the GNU Lesser General Public License as published by | |
| 12 * the Free Software Foundation, either version 3 of the License, or | |
| 13 * (at your option) any later version. | |
| 14 * | |
| 15 * This program is distributed in the hope that it will be useful, | |
| 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 18 * GNU General Public License for more details. | |
| 19 * | |
| 20 * You should have received a copy of the GNU Lesser General Public License | |
| 21 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 22 */ | |
| 23 | |
| 24 using System; | |
| 25 using System.Collections.Generic; | |
| 26 using System.Linq; | |
| 27 using System.Text; | |
| 28 using System.Runtime.Serialization; | |
| 29 using Npgsql; | |
| 30 | |
| 31 namespace Postarc | |
| 32 { | |
| 33 [Serializable] | |
| 34 public class PostGISConnection | |
| 35 { | |
| 36 private string name = "<new profile>"; | |
| 37 private string host; | |
| 38 private int port = 5432; | |
| 39 private string user; | |
| 40 private string password; | |
| 41 private string database; | |
| 42 | |
| 43 public string Name | |
| 44 { | |
| 45 get | |
| 46 { | |
| 47 return this.name; | |
| 48 } | |
| 49 set | |
| 50 { | |
| 51 this.name = value; | |
| 52 } | |
| 53 } | |
| 54 | |
| 55 public string Host | |
| 56 { | |
| 57 get | |
| 58 { | |
| 59 return this.host; | |
| 60 } | |
| 61 set | |
| 62 { | |
| 63 this.host = value; | |
| 64 } | |
| 65 } | |
| 66 | |
| 67 public int Port | |
| 68 { | |
| 69 get | |
| 70 { | |
| 71 return this.port; | |
| 72 } | |
| 73 set | |
| 74 { | |
| 75 this.port = value; | |
| 76 } | |
| 77 } | |
| 78 | |
| 79 public string User | |
| 80 { | |
| 81 get | |
| 82 { | |
| 83 return this.user; | |
| 84 } | |
| 85 set | |
| 86 { | |
| 87 this.user = value; | |
| 88 } | |
| 89 } | |
| 90 | |
| 91 public string Password | |
| 92 { | |
| 93 get | |
| 94 { | |
| 95 return this.password; | |
| 96 } | |
| 97 set | |
| 98 { | |
| 99 this.password = value; | |
| 100 } | |
| 101 } | |
| 102 | |
| 103 public string Database | |
| 104 { | |
| 105 get | |
| 106 { | |
| 107 return "postgis"; // this.database; | |
| 108 } | |
| 109 set | |
| 110 { | |
| 111 this.database = value; | |
| 112 } | |
| 113 } | |
| 114 | |
| 115 public PostGISConnection() | |
| 116 { | |
| 117 } | |
| 118 | |
| 119 public string CreateConnectionString() | |
| 120 { | |
| 121 StringBuilder cs = new StringBuilder(); | |
| 122 cs.Append("Server="); cs.Append(host); | |
| 123 cs.Append(";Port="); cs.Append(port); | |
| 124 cs.Append(";User Id="); cs.Append(user); | |
| 125 cs.Append(";Password="); cs.Append(password); | |
| 126 cs.Append(";Database="); cs.Append(database); | |
| 127 cs.Append(";"); | |
| 128 return cs.ToString(); | |
| 129 } | |
| 130 | |
| 131 /// <summary> | |
| 132 /// Creates and opens an NpgsqlConnection to the PostGIS database | |
| 133 /// described by this PostGISConnection instance. | |
| 134 /// </summary> | |
| 135 /// <returns></returns> | |
| 136 public NpgsqlConnection Open() | |
| 137 { | |
| 138 NpgsqlConnection conn = new NpgsqlConnection(CreateConnectionString()); | |
| 139 conn.ChangeDatabase(this.Database); | |
| 140 return conn; | |
| 141 } | |
| 142 | |
| 143 /// <summary> | |
| 144 /// Queries the table names from the information_schema.tables table | |
| 145 /// of the PostgreSQL system. | |
| 146 /// </summary> | |
| 147 /// <returns></returns> | |
| 148 public List<string> QueryTables() | |
| 149 { | |
| 150 List<string> tables = new List<string>(); | |
| 151 | |
| 152 NpgsqlConnection conn = Open(); | |
| 153 NpgsqlCommand cmd = new NpgsqlCommand( | |
| 154 "SELECT table_name FROM information_schema.tables WHERE table_schema = 'public';", | |
| 155 conn); | |
| 156 NpgsqlDataReader reader = cmd.ExecuteReader(); | |
| 157 while (reader.Read()) | |
| 158 { | |
| 159 string str = reader.GetString(0); | |
| 160 if (!str.Equals("spatial_ref_sys") && | |
| 161 !str.Equals("geography_columns") && | |
| 162 !str.Equals("geometry_columns") && | |
| 163 !str.Equals("raster_columns") && | |
| 164 !str.Equals("raster_overviews")) | |
| 165 { | |
| 166 tables.Add(str); | |
| 167 } | |
| 168 } | |
| 169 | |
| 170 conn.Close(); | |
| 171 return tables; | |
| 172 } | |
| 173 | |
| 174 public override string ToString() | |
| 175 { | |
| 176 return Name; | |
| 177 } | |
| 178 } | |
| 179 } |