svn-gvsig-desktop / trunk / extensions / extJDBC / src / com / iver / cit / gvsig / fmap / drivers / jdbc / postgis / PostGISWriter.java @ 4740
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package com.iver.cit.gvsig.fmap.drivers.jdbc.postgis; |
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import java.io.IOException; |
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import java.sql.Connection; |
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import java.sql.SQLException; |
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import java.sql.Statement; |
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import java.sql.Types; |
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import com.iver.cit.gvsig.fmap.DriverException; |
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import com.iver.cit.gvsig.fmap.core.FShape; |
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import com.iver.cit.gvsig.fmap.core.IFeature; |
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import com.iver.cit.gvsig.fmap.drivers.DBLayerDefinition; |
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import com.iver.cit.gvsig.fmap.drivers.LayerDefinition; |
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import com.iver.cit.gvsig.fmap.edition.EditionException; |
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import com.iver.cit.gvsig.fmap.edition.IRowEdited; |
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import com.iver.cit.gvsig.fmap.edition.ISpatialWriter; |
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import com.iver.cit.gvsig.fmap.edition.writers.AbstractWriter; |
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import com.iver.cit.gvsig.fmap.layers.FLayer; |
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import com.iver.cit.gvsig.jdbc_spatial.util.PostGIS; |
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public class PostGISWriter extends AbstractWriter implements ISpatialWriter { |
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private int numRows; |
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private DBLayerDefinition lyrDef;
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private Connection conex; |
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private Statement st; |
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private boolean bCreateTable; |
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private boolean bWriteAll; |
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/**
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* Useful to create a layer from scratch Call setFile before using this
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* function
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*
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* @param lyrDef
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* @throws IOException
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* @throws DriverException
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*/
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public void initialize(LayerDefinition lyrD) throws EditionException { |
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this.lyrDef = (DBLayerDefinition) lyrD;
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conex = lyrDef.getConnection(); |
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try {
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st = conex.createStatement(); |
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if (bCreateTable) {
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try {
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st.execute("DROP TABLE " + lyrDef.getTableName() + ";"); |
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} catch (SQLException e1) { |
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// Si no existe la tabla, no hay que borrarla.
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} |
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String sqlCreate = PostGIS.getSqlCreateSpatialTable(lyrDef,
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lyrDef.getFieldsDesc()); |
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System.out.println("sqlCreate =" + sqlCreate); |
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st.execute(sqlCreate); |
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String sqlAlter = PostGIS.getSqlAlterTable(lyrDef);
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System.out.println("sqlAlter =" + sqlAlter); |
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st.execute(sqlAlter); |
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// CREATE TABLE PARKS ( PARK_ID int4, PARK_NAME varchar(128),
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// PARK_DATE date, PARK_TYPE varchar(2) );
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// SELECT AddGeometryColumn('parks_db', 'parks', 'park_geom',
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// 128,
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// 'MULTIPOLYGON', 2 );
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/*
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* BEGIN; INSERT INTO ROADS_GEOM (ID,GEOM,NAME ) VALUES
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* (1,GeometryFromText('LINESTRING(191232 243118,191108
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* 243242)',-1),'Jeff Rd'); INSERT INTO ROADS_GEOM (ID,GEOM,NAME )
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* VALUES (2,GeometryFromText('LINESTRING(189141 244158,189265
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* 244817)',-1),'Geordie Rd'); COMMIT;
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*/
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} |
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conex.setAutoCommit(false);
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} catch (SQLException e) { |
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e.printStackTrace(); |
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throw new EditionException(e); |
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} |
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} |
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public void preProcess() throws EditionException { |
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numRows = 0;
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} |
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public void process(IRowEdited row) throws EditionException { |
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IFeature feat = (IFeature) row.getLinkedRow(); |
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String sqlInsert;
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try {
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// System.out.println("Escribiendo numReg=" + numReg + " con
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// STATUS=" + row.getStatus());
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switch (row.getStatus()) {
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case IRowEdited.STATUS_ADDED:
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sqlInsert = PostGIS.getSqlInsertFeature(lyrDef, feat); |
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st.execute(sqlInsert); |
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break;
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case IRowEdited.STATUS_MODIFIED:
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if (bWriteAll) {
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sqlInsert = PostGIS.getSqlInsertFeature(lyrDef, feat); |
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st.execute(sqlInsert); |
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} else {
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String sqlModify = PostGIS
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.getSqlModifyFeature(lyrDef, feat); |
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st.execute(sqlModify); |
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} |
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break;
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case IRowEdited.STATUS_ORIGINAL:
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if (bWriteAll) {
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sqlInsert = PostGIS.getSqlInsertFeature(lyrDef, feat); |
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st.execute(sqlInsert); |
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} |
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break;
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case IRowEdited.STATUS_DELETED:
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String sqlDelete = PostGIS.getSqlDeleteFeature(lyrDef, feat);
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st.execute(sqlDelete); |
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break;
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} |
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numRows++; |
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} catch (SQLException e) { |
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e.printStackTrace(); |
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throw new EditionException(e); |
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} |
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} |
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public void postProcess() throws EditionException { |
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try {
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conex.setAutoCommit(true);
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} catch (SQLException e) { |
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e.printStackTrace(); |
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throw new EditionException(e); |
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} |
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} |
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public String getName() { |
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return "PostGIS Writer"; |
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} |
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public boolean canWriteGeometry(int gvSIGgeometryType) { |
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switch (gvSIGgeometryType) {
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case FShape.POINT:
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return true; |
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case FShape.LINE:
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return true; |
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case FShape.POLYGON:
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return true; |
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case FShape.ARC:
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return false; |
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case FShape.ELLIPSE:
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return false; |
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case FShape.MULTIPOINT:
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return true; |
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case FShape.TEXT:
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return false; |
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} |
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return false; |
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} |
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public boolean canWriteAttribute(int sqlType) { |
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switch (sqlType) {
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case Types.DOUBLE: |
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case Types.FLOAT: |
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case Types.INTEGER: |
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case Types.BIGINT: |
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return true; |
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case Types.DATE: |
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return true; |
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case Types.BIT: |
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case Types.BOOLEAN: |
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return true; |
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case Types.VARCHAR: |
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case Types.CHAR: |
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case Types.LONGVARCHAR: |
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return true; |
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} |
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return false; |
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} |
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/**
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* @return Returns the bCreateTable.
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*/
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public boolean isCreateTable() { |
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return bCreateTable;
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} |
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/**
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* @param createTable
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* The bCreateTable to set.
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*/
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public void setCreateTable(boolean createTable) { |
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bCreateTable = createTable; |
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} |
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/**
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* @return Returns the bWriteAll.
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*/
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public boolean isWriteAll() { |
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return bWriteAll;
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} |
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/**
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* @param writeAll
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* The bWriteAll to set.
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*/
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public void setWriteAll(boolean writeAll) { |
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bWriteAll = writeAll; |
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} |
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public void initialize(FLayer layer) throws EditionException { |
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} |
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} |