svn-gvsig-desktop / tags / v1_0_2_RELEASE / libraries / libGDBMS / src / main / java / com / hardcode / gdbms / engine / data / driver / AbstractJDBCDriver.java @ 11432
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| 1 | 5690 | fjp | /* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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| 2 | *
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| 3 | * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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| 4 | *
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| 5 | * This program is free software; you can redistribute it and/or
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| 6 | * modify it under the terms of the GNU General Public License
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| 7 | * as published by the Free Software Foundation; either version 2
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| 8 | * of the License, or (at your option) any later version.
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| 9 | *
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| 10 | * This program is distributed in the hope that it will be useful,
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| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 13 | * GNU General Public License for more details.
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| 14 | *
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| 15 | * You should have received a copy of the GNU General Public License
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| 16 | * along with this program; if not, write to the Free Software
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| 17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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| 18 | *
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| 19 | * For more information, contact:
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| 20 | *
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| 21 | * Generalitat Valenciana
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| 22 | * Conselleria d'Infraestructures i Transport
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| 23 | * Av. Blasco Ib??ez, 50
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| 24 | * 46010 VALENCIA
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| 25 | * SPAIN
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| 26 | *
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| 27 | * +34 963862235
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| 28 | * gvsig@gva.es
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| 29 | * www.gvsig.gva.es
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| 30 | *
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| 31 | * or
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| 32 | *
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| 33 | * IVER T.I. S.A
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| 34 | * Salamanca 50
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| 35 | * 46005 Valencia
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| 36 | * Spain
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| 37 | *
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| 38 | * +34 963163400
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| 39 | * dac@iver.es
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| 40 | */
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| 41 | package com.hardcode.gdbms.engine.data.driver; |
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| 42 | |||
| 43 | import java.sql.Connection; |
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| 44 | import java.sql.Date; |
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| 45 | import java.sql.ResultSet; |
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| 46 | import java.sql.SQLException; |
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| 47 | import java.sql.Statement; |
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| 48 | import java.sql.Time; |
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| 49 | import java.sql.Timestamp; |
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| 50 | import java.text.DateFormat; |
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| 51 | import java.text.SimpleDateFormat; |
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| 52 | import java.util.HashMap; |
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| 53 | |||
| 54 | import com.hardcode.gdbms.engine.data.DataSourceFactory; |
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| 55 | import com.hardcode.gdbms.engine.data.db.JDBCSupport; |
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| 56 | import com.hardcode.gdbms.engine.values.Value; |
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| 57 | import com.hardcode.gdbms.engine.values.ValueWriter; |
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| 58 | 9887 | fjp | import com.iver.cit.gvsig.fmap.drivers.FieldDescription; |
| 59 | import com.iver.cit.gvsig.fmap.drivers.ITableDefinition; |
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| 60 | import com.iver.cit.gvsig.fmap.drivers.TableDefinition; |
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| 61 | 5690 | fjp | import com.iver.cit.gvsig.fmap.edition.IWriteable; |
| 62 | import com.iver.cit.gvsig.fmap.edition.IWriter; |
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| 63 | import com.iver.cit.gvsig.fmap.edition.writers.JdbcWriter; |
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| 64 | 9887 | fjp | import com.iver.utiles.NumberUtilities; |
| 65 | 5690 | fjp | |
| 66 | 5700 | fjp | public abstract class AbstractJDBCDriver implements AlphanumericDBDriver, |
| 67 | IWriteable {
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| 68 | 5690 | fjp | |
| 69 | 5700 | fjp | protected JDBCSupport jdbcSupport;
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| 70 | 5690 | fjp | |
| 71 | 5700 | fjp | protected JdbcWriter jdbcWriter = new JdbcWriter(); |
| 72 | 5690 | fjp | |
| 73 | 5700 | fjp | private static DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd"); |
| 74 | 5690 | fjp | |
| 75 | 5700 | fjp | private static DateFormat timeFormat = new SimpleDateFormat( |
| 76 | "yyyy-MM-dd HH:mm:ss");
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| 77 | 5690 | fjp | |
| 78 | 5700 | fjp | private ValueWriter vWriter = ValueWriter.internalValueWriter;
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| 79 | 5690 | fjp | |
| 80 | 5700 | fjp | /**
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| 81 | * @see com.hardcode.gdbms.engine.data.driver.DBDriver#executeSQL(java.sql.Connection,
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| 82 | * java.lang.String)
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| 83 | */
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| 84 | public void open(Connection con, String sql) throws SQLException { |
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| 85 | jdbcSupport = JDBCSupport.newJDBCSupport(con, sql); |
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| 86 | Statement st = con.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, |
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| 87 | ResultSet.CONCUR_UPDATABLE);
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| 88 | ResultSet res = st.executeQuery(sql);
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| 89 | if (res.getConcurrency() != ResultSet.CONCUR_UPDATABLE) { |
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| 90 | System.err.println("Error: No se puede editar la tabla " + sql); |
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| 91 | jdbcWriter = null;
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| 92 | } else
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| 93 | 5736 | fjp | {
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| 94 | 5700 | fjp | jdbcWriter.initialize(con, res); |
| 95 | 5736 | fjp | jdbcWriter.setCreateTable(false);
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| 96 | jdbcWriter.setWriteAll(false);
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| 97 | } |
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| 98 | 5700 | fjp | } |
| 99 | 5690 | fjp | |
| 100 | 5700 | fjp | /**
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| 101 | * DOCUMENT ME!
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| 102 | *
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| 103 | * @return DOCUMENT ME!
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| 104 | *
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| 105 | * @throws DriverException
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| 106 | * DOCUMENT ME!
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| 107 | */
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| 108 | public int getFieldCount() throws DriverException { |
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| 109 | return jdbcSupport.getFieldCount();
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| 110 | } |
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| 111 | 5690 | fjp | |
| 112 | 5700 | fjp | /**
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| 113 | * DOCUMENT ME!
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| 114 | *
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| 115 | * @param fieldId
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| 116 | * DOCUMENT ME!
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| 117 | *
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| 118 | * @return DOCUMENT ME!
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| 119 | *
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| 120 | * @throws DriverException
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| 121 | * DOCUMENT ME!
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| 122 | */
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| 123 | public String getFieldName(int fieldId) throws DriverException { |
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| 124 | return jdbcSupport.getFieldName(fieldId);
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| 125 | } |
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| 126 | 5690 | fjp | |
| 127 | 5700 | fjp | /**
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| 128 | * DOCUMENT ME!
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| 129 | *
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| 130 | * @param i
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| 131 | * DOCUMENT ME!
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| 132 | *
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| 133 | * @return DOCUMENT ME!
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| 134 | *
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| 135 | * @throws DriverException
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| 136 | * DOCUMENT ME!
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| 137 | */
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| 138 | public int getFieldType(int i) throws DriverException { |
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| 139 | return jdbcSupport.getFieldType(i);
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| 140 | } |
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| 141 | 5690 | fjp | |
| 142 | 5700 | fjp | /**
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| 143 | * DOCUMENT ME!
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| 144 | *
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| 145 | * @param rowIndex
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| 146 | * DOCUMENT ME!
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| 147 | * @param fieldId
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| 148 | * DOCUMENT ME!
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| 149 | *
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| 150 | * @return DOCUMENT ME!
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| 151 | *
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| 152 | * @throws DriverException
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| 153 | * DOCUMENT ME!
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| 154 | */
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| 155 | public Value getFieldValue(long rowIndex, int fieldId) |
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| 156 | throws DriverException {
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| 157 | return jdbcSupport.getFieldValue(rowIndex, fieldId);
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| 158 | } |
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| 159 | 5690 | fjp | |
| 160 | 5700 | fjp | /**
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| 161 | * DOCUMENT ME!
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| 162 | *
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| 163 | * @return DOCUMENT ME!
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| 164 | *
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| 165 | * @throws DriverException
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| 166 | * DOCUMENT ME!
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| 167 | */
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| 168 | public long getRowCount() throws DriverException { |
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| 169 | return jdbcSupport.getRowCount();
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| 170 | } |
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| 171 | 5690 | fjp | |
| 172 | 5700 | fjp | /**
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| 173 | * @see com.hardcode.gdbms.engine.data.driver.DBDriver#close()
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| 174 | */
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| 175 | public void close() throws SQLException { |
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| 176 | jdbcSupport.close(); |
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| 177 | jdbcWriter.close(); |
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| 178 | } |
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| 179 | 5690 | fjp | |
| 180 | 5700 | fjp | /**
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| 181 | * @see com.hardcode.gdbms.engine.data.driver.DriverCommons#getDriverProperties()
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| 182 | */
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| 183 | public HashMap getDriverProperties() { |
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| 184 | return null; |
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| 185 | } |
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| 186 | 5690 | fjp | |
| 187 | 5700 | fjp | /**
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| 188 | * @see com.hardcode.gdbms.engine.data.driver.DriverCommons#setDataSourceFactory(com.hardcode.gdbms.engine.data.DataSourceFactory)
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| 189 | */
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| 190 | public void setDataSourceFactory(DataSourceFactory dsf) { |
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| 191 | } |
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| 192 | 5690 | fjp | |
| 193 | 5700 | fjp | /**
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| 194 | * @see com.hardcode.gdbms.engine.data.driver.DBDriver#execute(java.sql.Connection,
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| 195 | * java.lang.String, com.hardcode.gdbms.engine.data.HasProperties)
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| 196 | */
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| 197 | public void execute(Connection con, String sql) throws SQLException { |
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| 198 | JDBCSupport.execute(con, sql); |
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| 199 | } |
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| 200 | 5690 | fjp | |
| 201 | 5700 | fjp | /**
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| 202 | * @see com.hardcode.gdbms.engine.data.driver.DBDriver#getInternalTableName(java.lang.String)
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| 203 | */
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| 204 | public String getInternalTableName(String tableName) { |
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| 205 | return tableName;
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| 206 | } |
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| 207 | 5690 | fjp | |
| 208 | 5700 | fjp | /**
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| 209 | * @see com.hardcode.gdbms.engine.data.driver.DBDriver#getStatementString(long)
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| 210 | */
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| 211 | public String getStatementString(long i) { |
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| 212 | return vWriter.getStatementString(i);
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| 213 | } |
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| 214 | 5690 | fjp | |
| 215 | 5700 | fjp | /**
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| 216 | * @see com.hardcode.gdbms.engine.data.driver.DBDriver#getStatementString(int,
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| 217 | * int)
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| 218 | */
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| 219 | public String getStatementString(int i, int sqlType) { |
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| 220 | return vWriter.getStatementString(i, sqlType);
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| 221 | } |
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| 222 | 5690 | fjp | |
| 223 | 5700 | fjp | /**
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| 224 | * @see com.hardcode.gdbms.engine.data.driver.DBDriver#getStatementString(double,
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| 225 | * int)
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| 226 | */
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| 227 | public String getStatementString(double d, int sqlType) { |
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| 228 | return vWriter.getStatementString(d, sqlType);
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| 229 | } |
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| 230 | 5690 | fjp | |
| 231 | 5700 | fjp | /**
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| 232 | * @see com.hardcode.gdbms.engine.data.driver.DBDriver#getStatementString(java.lang.String,
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| 233 | * int)
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| 234 | */
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| 235 | public String getStatementString(String str, int sqlType) { |
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| 236 | return vWriter.getStatementString(str, sqlType);
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| 237 | } |
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| 238 | 5690 | fjp | |
| 239 | 5700 | fjp | /**
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| 240 | * @see com.hardcode.gdbms.engine.data.driver.DBDriver#getStatementString(java.sql.Date)
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| 241 | */
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| 242 | public String getStatementString(Date d) { |
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| 243 | return dateFormat.format(d);
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| 244 | } |
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| 245 | 5690 | fjp | |
| 246 | 5700 | fjp | /**
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| 247 | * @see com.hardcode.gdbms.engine.data.driver.DBDriver#getStatementString(java.sql.Time)
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| 248 | */
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| 249 | public String getStatementString(Time t) { |
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| 250 | return timeFormat.format(t);
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| 251 | } |
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| 252 | 5690 | fjp | |
| 253 | 5700 | fjp | /**
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| 254 | * @see com.hardcode.gdbms.engine.data.driver.DBDriver#getStatementString(java.sql.Timestamp)
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| 255 | */
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| 256 | public String getStatementString(Timestamp ts) { |
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| 257 | return timeFormat.format(ts);
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| 258 | } |
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| 259 | 5690 | fjp | |
| 260 | 5700 | fjp | /**
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| 261 | * @see com.hardcode.gdbms.engine.data.driver.DBDriver#getStatementString(byte[])
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| 262 | */
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| 263 | public String getStatementString(byte[] binary) { |
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| 264 | return "x" + vWriter.getStatementString(binary); |
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| 265 | } |
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| 266 | 5690 | fjp | |
| 267 | 5700 | fjp | /**
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| 268 | * @see com.hardcode.gdbms.engine.data.driver.DBDriver#getStatementString(boolean)
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| 269 | */
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| 270 | public String getStatementString(boolean b) { |
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| 271 | return vWriter.getStatementString(b);
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| 272 | } |
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| 273 | |||
| 274 | /**
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| 275 | * @see com.hardcode.gdbms.engine.values.ValueWriter#getNullStatementString()
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| 276 | */
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| 277 | public String getNullStatementString() { |
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| 278 | return "null"; |
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| 279 | } |
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| 280 | |||
| 281 | 5690 | fjp | public int getFieldWidth(int i) throws DriverException { |
| 282 | return jdbcSupport.getFieldWidth(i);
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| 283 | } |
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| 284 | |||
| 285 | public IWriter getWriter() {
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| 286 | return jdbcWriter;
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| 287 | } |
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| 288 | 9887 | fjp | |
| 289 | /**
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| 290 | * Return the default tabledefinition (only
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| 291 | * has field description values).
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| 292 | * Each driver that inheret this class must overwrite
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| 293 | * this.
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| 294 | *
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| 295 | * */
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| 296 | 10051 | fjp | // public ITableDefinition getTableDefinition(){
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| 297 | // TableDefinition tableDef = new TableDefinition();
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| 298 | // try {
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| 299 | // tableDef.setFieldsDesc(getFieldsDescription());
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| 300 | // } catch (DriverException e) {
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| 301 | // throw new RuntimeException(e);//excepcion sin chequear
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| 302 | // }
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| 303 | // return tableDef;
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| 304 | // }
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| 305 | 9887 | fjp | |
| 306 | |||
| 307 | /*azabala
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| 308 | TODO Copypasteado de SelectableDataSource.
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| 309 | ?No estar?a mejor aqu??
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| 310 | *
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| 311 | */
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| 312 | private FieldDescription[] getFieldsDescription() throws DriverException |
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| 313 | {
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| 314 | int numFields = getFieldCount();
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| 315 | FieldDescription[] fieldsDescrip = new FieldDescription[numFields]; |
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| 316 | for (int i = 0; i < numFields; i++) { |
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| 317 | fieldsDescrip[i] = new FieldDescription();
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| 318 | int type = getFieldType(i);
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| 319 | fieldsDescrip[i].setFieldType(type); |
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| 320 | fieldsDescrip[i].setFieldName(getFieldName(i)); |
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| 321 | fieldsDescrip[i].setFieldLength(getFieldWidth(i)); |
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| 322 | if (NumberUtilities.isNumeric(type))
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| 323 | {
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| 324 | if (!NumberUtilities.isNumericInteger(type))
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| 325 | // TODO: If there is a lost in precision, this should be changed.
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| 326 | fieldsDescrip[i].setFieldDecimalCount(6);
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| 327 | } |
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| 328 | else
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| 329 | fieldsDescrip[i].setFieldDecimalCount(0);
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| 330 | // TODO: ?DEFAULTVALUE?
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| 331 | // fieldsDescrip[i].setDefaultValue(get)
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| 332 | } |
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| 333 | return fieldsDescrip;
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| 334 | } |
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| 335 | 5690 | fjp | } |