root / trunk / extensions / extJDBC / src / com / iver / cit / gvsig / fmap / drivers / jdbc / postgis / PostGISWriter.java @ 11971
History | View | Annotate | Download (8.02 KB)
1 |
package com.iver.cit.gvsig.fmap.drivers.jdbc.postgis; |
---|---|
2 |
|
3 |
import java.io.IOException; |
4 |
import java.sql.Connection; |
5 |
import java.sql.ResultSet; |
6 |
import java.sql.SQLException; |
7 |
import java.sql.Statement; |
8 |
import java.sql.Types; |
9 |
|
10 |
import com.hardcode.gdbms.driver.exceptions.InitializeWriterException; |
11 |
import com.hardcode.gdbms.driver.exceptions.WriteDriverException; |
12 |
import com.hardcode.gdbms.engine.data.driver.DriverException; |
13 |
import com.iver.cit.gvsig.exceptions.visitors.ProcessWriterVisitorException; |
14 |
import com.iver.cit.gvsig.exceptions.visitors.StartWriterVisitorException; |
15 |
import com.iver.cit.gvsig.exceptions.visitors.StopWriterVisitorException; |
16 |
import com.iver.cit.gvsig.fmap.core.FShape; |
17 |
import com.iver.cit.gvsig.fmap.core.IFeature; |
18 |
import com.iver.cit.gvsig.fmap.drivers.ConnectionJDBC; |
19 |
import com.iver.cit.gvsig.fmap.drivers.DBLayerDefinition; |
20 |
import com.iver.cit.gvsig.fmap.drivers.FieldDescription; |
21 |
import com.iver.cit.gvsig.fmap.drivers.IConnection; |
22 |
import com.iver.cit.gvsig.fmap.drivers.ITableDefinition; |
23 |
import com.iver.cit.gvsig.fmap.edition.IFieldManager; |
24 |
import com.iver.cit.gvsig.fmap.edition.IRowEdited; |
25 |
import com.iver.cit.gvsig.fmap.edition.ISpatialWriter; |
26 |
import com.iver.cit.gvsig.fmap.edition.fieldmanagers.JdbcFieldManager; |
27 |
import com.iver.cit.gvsig.fmap.edition.writers.AbstractWriter; |
28 |
|
29 |
public class PostGISWriter extends AbstractWriter implements ISpatialWriter, IFieldManager { |
30 |
|
31 |
private int numRows; |
32 |
|
33 |
private DBLayerDefinition lyrDef;
|
34 |
|
35 |
private IConnection conex;
|
36 |
|
37 |
private Statement st; |
38 |
|
39 |
private boolean bCreateTable; |
40 |
|
41 |
private boolean bWriteAll; |
42 |
|
43 |
private PostGIS postGisSQL = new PostGIS(); |
44 |
// private double flatness;
|
45 |
|
46 |
private JdbcFieldManager fieldManager;
|
47 |
|
48 |
/**
|
49 |
* Useful to create a layer from scratch Call setFile before using this
|
50 |
* function
|
51 |
*
|
52 |
* @param lyrDef
|
53 |
* @throws InitializeWriterException
|
54 |
* @throws IOException
|
55 |
* @throws DriverException
|
56 |
*/
|
57 |
public void initialize(ITableDefinition lyrD) throws InitializeWriterException { |
58 |
super.initialize(lyrD);
|
59 |
this.lyrDef = (DBLayerDefinition) lyrD;
|
60 |
conex = lyrDef.getConnection(); |
61 |
|
62 |
try {
|
63 |
st = ((ConnectionJDBC)conex).getConnection().createStatement(); |
64 |
|
65 |
if (bCreateTable) {
|
66 |
try {
|
67 |
st.execute("DROP TABLE " + lyrDef.getComposedTableName() + ";"); |
68 |
} catch (SQLException e1) { |
69 |
// Si no existe la tabla, no hay que borrarla.
|
70 |
} |
71 |
|
72 |
String sqlCreate = postGisSQL.getSqlCreateSpatialTable(lyrDef,
|
73 |
lyrDef.getFieldsDesc(), true);
|
74 |
System.out.println("sqlCreate =" + sqlCreate); |
75 |
st.execute(sqlCreate); |
76 |
|
77 |
String sqlAlter = postGisSQL.getSqlAlterTable(lyrDef);
|
78 |
System.out.println("sqlAlter =" + sqlAlter); |
79 |
st.execute(sqlAlter); |
80 |
// CREATE TABLE PARKS ( PARK_ID int4, PARK_NAME varchar(128),
|
81 |
// PARK_DATE date, PARK_TYPE varchar(2) );
|
82 |
// SELECT AddGeometryColumn('parks_db', 'parks', 'park_geom',
|
83 |
// 128,
|
84 |
// 'MULTIPOLYGON', 2 );
|
85 |
|
86 |
/*
|
87 |
* BEGIN; INSERT INTO ROADS_GEOM (ID,GEOM,NAME ) VALUES
|
88 |
* (1,GeometryFromText('LINESTRING(191232 243118,191108
|
89 |
* 243242)',-1),'Jeff Rd'); INSERT INTO ROADS_GEOM (ID,GEOM,NAME )
|
90 |
* VALUES (2,GeometryFromText('LINESTRING(189141 244158,189265
|
91 |
* 244817)',-1),'Geordie Rd'); COMMIT;
|
92 |
*/
|
93 |
((ConnectionJDBC)conex).getConnection().commit(); |
94 |
} |
95 |
((ConnectionJDBC)conex).getConnection().setAutoCommit(false);
|
96 |
fieldManager = new JdbcFieldManager(((ConnectionJDBC)conex).getConnection(), lyrDef.getTableName());
|
97 |
|
98 |
} catch (SQLException e) { |
99 |
throw new InitializeWriterException(getName(),e); |
100 |
} |
101 |
|
102 |
} |
103 |
|
104 |
public void preProcess() throws StartWriterVisitorException { |
105 |
numRows = 0;
|
106 |
// ATENTION: We will transform (in PostGIS class; doubleQuote())
|
107 |
// to UTF-8 strings. Then, we tell the PostgreSQL server
|
108 |
// that we will use UTF-8, and it can translate
|
109 |
// to its charset
|
110 |
// Note: we have to translate to UTF-8 because
|
111 |
// the server cannot manage UTF-16
|
112 |
|
113 |
ResultSet rsAux;
|
114 |
try {
|
115 |
((ConnectionJDBC)conex).getConnection().rollback(); |
116 |
alterTable(); |
117 |
|
118 |
rsAux = st.executeQuery("SHOW server_encoding;");
|
119 |
rsAux.next(); |
120 |
String serverEncoding = rsAux.getString(1); |
121 |
System.out.println("Server encoding = " + serverEncoding); |
122 |
// st.execute("SET CLIENT_ENCODING TO 'UNICODE';");
|
123 |
// Intentamos convertir nuestras cadenas a ese encode.
|
124 |
postGisSQL.setEncoding(serverEncoding); |
125 |
} catch (SQLException e) { |
126 |
throw new StartWriterVisitorException(getName(),e); |
127 |
} catch (WriteDriverException e) {
|
128 |
throw new StartWriterVisitorException(getName(),e); |
129 |
} |
130 |
|
131 |
} |
132 |
|
133 |
public void process(IRowEdited row) throws ProcessWriterVisitorException { |
134 |
|
135 |
String sqlInsert;
|
136 |
try {
|
137 |
// System.out.println("Escribiendo numReg=" + numReg + " con
|
138 |
// STATUS=" + row.getStatus());
|
139 |
switch (row.getStatus()) {
|
140 |
case IRowEdited.STATUS_ADDED:
|
141 |
IFeature feat = (IFeature) row.getLinkedRow(); |
142 |
sqlInsert = postGisSQL.getSqlInsertFeature(lyrDef, feat); |
143 |
System.out.println("sql = " + sqlInsert); |
144 |
st.execute(sqlInsert); |
145 |
|
146 |
break;
|
147 |
case IRowEdited.STATUS_MODIFIED:
|
148 |
IFeature featM = (IFeature) row.getLinkedRow(); |
149 |
if (bWriteAll) {
|
150 |
sqlInsert = postGisSQL.getSqlInsertFeature(lyrDef, featM); |
151 |
System.out.println("sql = " + sqlInsert); |
152 |
st.execute(sqlInsert); |
153 |
} else {
|
154 |
String sqlModify = postGisSQL.getSqlModifyFeature(lyrDef, featM);
|
155 |
System.out.println("sql = " + sqlModify); |
156 |
st.execute(sqlModify); |
157 |
} |
158 |
break;
|
159 |
case IRowEdited.STATUS_ORIGINAL:
|
160 |
IFeature featO = (IFeature) row.getLinkedRow(); |
161 |
if (bWriteAll) {
|
162 |
sqlInsert = postGisSQL.getSqlInsertFeature(lyrDef, featO); |
163 |
st.execute(sqlInsert); |
164 |
} |
165 |
break;
|
166 |
case IRowEdited.STATUS_DELETED:
|
167 |
String sqlDelete = postGisSQL.getSqlDeleteFeature(lyrDef, row);
|
168 |
System.out.println("sql = " + sqlDelete); |
169 |
st.execute(sqlDelete); |
170 |
|
171 |
break;
|
172 |
} |
173 |
|
174 |
numRows++; |
175 |
} catch (SQLException e) { |
176 |
throw new ProcessWriterVisitorException(getName(),e); |
177 |
} |
178 |
|
179 |
} |
180 |
|
181 |
public void postProcess() throws StopWriterVisitorException { |
182 |
try {
|
183 |
((ConnectionJDBC)conex).getConnection().setAutoCommit(true);
|
184 |
} catch (SQLException e) { |
185 |
throw new StopWriterVisitorException(getName(),e); |
186 |
} |
187 |
} |
188 |
|
189 |
public String getName() { |
190 |
return "PostGIS Writer"; |
191 |
} |
192 |
|
193 |
public boolean canWriteGeometry(int gvSIGgeometryType) { |
194 |
switch (gvSIGgeometryType) {
|
195 |
case FShape.POINT:
|
196 |
return true; |
197 |
case FShape.LINE:
|
198 |
return true; |
199 |
case FShape.POLYGON:
|
200 |
return true; |
201 |
case FShape.ARC:
|
202 |
return false; |
203 |
case FShape.ELLIPSE:
|
204 |
return false; |
205 |
case FShape.MULTIPOINT:
|
206 |
return true; |
207 |
case FShape.TEXT:
|
208 |
return false; |
209 |
} |
210 |
return false; |
211 |
} |
212 |
|
213 |
public boolean canWriteAttribute(int sqlType) { |
214 |
switch (sqlType) {
|
215 |
case Types.DOUBLE: |
216 |
case Types.FLOAT: |
217 |
case Types.INTEGER: |
218 |
case Types.BIGINT: |
219 |
return true; |
220 |
case Types.DATE: |
221 |
return true; |
222 |
case Types.BIT: |
223 |
case Types.BOOLEAN: |
224 |
return true; |
225 |
case Types.VARCHAR: |
226 |
case Types.CHAR: |
227 |
case Types.LONGVARCHAR: |
228 |
return true; |
229 |
|
230 |
} |
231 |
|
232 |
return false; |
233 |
} |
234 |
|
235 |
/**
|
236 |
* @return Returns the bCreateTable.
|
237 |
*/
|
238 |
public boolean isCreateTable() { |
239 |
return bCreateTable;
|
240 |
} |
241 |
|
242 |
/**
|
243 |
* @param createTable
|
244 |
* The bCreateTable to set.
|
245 |
*/
|
246 |
public void setCreateTable(boolean createTable) { |
247 |
bCreateTable = createTable; |
248 |
} |
249 |
|
250 |
public FieldDescription[] getOriginalFields() { |
251 |
return lyrDef.getFieldsDesc();
|
252 |
} |
253 |
|
254 |
public void addField(FieldDescription fieldDesc) { |
255 |
fieldManager.addField(fieldDesc); |
256 |
|
257 |
} |
258 |
|
259 |
public FieldDescription removeField(String fieldName) { |
260 |
return fieldManager.removeField(fieldName);
|
261 |
|
262 |
} |
263 |
|
264 |
public void renameField(String antName, String newName) { |
265 |
fieldManager.renameField(antName, newName); |
266 |
|
267 |
} |
268 |
|
269 |
public boolean alterTable() throws WriteDriverException { |
270 |
return fieldManager.alterTable();
|
271 |
} |
272 |
|
273 |
public FieldDescription[] getFields() { |
274 |
return fieldManager.getFields();
|
275 |
} |
276 |
|
277 |
public boolean canAlterTable() { |
278 |
return true; |
279 |
} |
280 |
|
281 |
public boolean canSaveEdits() { |
282 |
// TODO: Revisar los permisos de la tabla en cuesti?n.
|
283 |
try {
|
284 |
return !((ConnectionJDBC)conex).getConnection().isReadOnly();
|
285 |
} catch (SQLException e) { |
286 |
// TODO Auto-generated catch block
|
287 |
e.printStackTrace(); |
288 |
return false; |
289 |
} |
290 |
} |
291 |
|
292 |
} |