root / branches / v2_0_0_prep / libraries / libFMap_daldb / src / org / gvsig / fmap / data / feature / db / jdbc / postgresql / PostgresqlExplorer.java @ 24491
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package org.gvsig.fmap.data.feature.db.jdbc.postgresql; |
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import java.security.KeyException; |
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import java.sql.Connection; |
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import java.sql.ResultSet; |
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import java.sql.SQLException; |
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import java.sql.Statement; |
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import java.util.ArrayList; |
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import org.gvsig.fmap.dal.DataExplorerParameters; |
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import org.gvsig.fmap.dal.DataStoreParameters; |
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import org.gvsig.fmap.dal.NewDataStoreParameters; |
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import org.gvsig.fmap.dal.exceptions.CloseException; |
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import org.gvsig.fmap.dal.exceptions.DataException; |
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import org.gvsig.fmap.dal.exceptions.InitializeException; |
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import org.gvsig.fmap.dal.exceptions.ReadException; |
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import org.gvsig.fmap.dal.feature.FeatureAttributeDescriptor; |
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import org.gvsig.fmap.dal.feature.FeatureType; |
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import org.gvsig.fmap.dal.feature.NewFeatureStoreParameters; |
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import org.gvsig.fmap.dal.feature.exceptions.InitializeWriterException; |
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import org.gvsig.fmap.dal.resource.ResourceManager; |
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import org.gvsig.fmap.dal.resource.impl.DefaultResourceManager; |
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import org.gvsig.fmap.data.feature.db.DBAttributeDescriptor; |
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import org.gvsig.fmap.data.feature.db.DBFeatureType; |
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import org.gvsig.fmap.data.feature.db.jdbc.JDBCExplorer; |
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import org.gvsig.fmap.data.feature.db.jdbc.JDBCExplorerParameter; |
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public class PostgresqlExplorer extends JDBCExplorer { |
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public static String DATAEXPLORER_NAME = "PostgresqlExplorer"; |
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private String defaultSchema; |
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private void appendFieldToCreteSQL(DBAttributeDescriptor attr,StringBuffer sql) throws InitializeException{ |
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/**
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* column_name data_type [ DEFAULT default_expr ] [ column_constraint [
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* ... ] ]
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*
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* where column_constraint is:
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*
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* [ CONSTRAINT constraint_name ] { NOT NULL | NULL | UNIQUE | PRIMARY
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* KEY | CHECK (expression) | REFERENCES reftable [ ( refcolumn ) ] [
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* MATCH FULL | MATCH PARTIAL | MATCH SIMPLE ] [ ON DELETE action ] [ ON
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* UPDATE action ] } [ DEFERRABLE | NOT DEFERRABLE ] [ INITIALLY
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* DEFERRED | INITIALLY IMMEDIATE ]
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*/
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//name
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sql.append(attr.getName()); |
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sql.append(" ");
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//dataType
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String type =attr.getDataType();
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if (type.equals(FeatureAttributeDescriptor.STRING)){
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if (attr.getSize() < 1 || attr.getSize() > 255) { |
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sql.append("text");
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} else {
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sql.append("varchar(" + attr.getSize() + ")"); |
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} |
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} else if (type.equals(FeatureAttributeDescriptor.BOOLEAN)){ |
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sql.append("bool");
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} else if (type.equals(FeatureAttributeDescriptor.BYTE)){ |
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sql.append("smallint");
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} else if (type.equals(FeatureAttributeDescriptor.DATE)){ |
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sql.append("date");
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} else if (type.equals(FeatureAttributeDescriptor.TIMESTAMP)){ |
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sql.append("timestamp");
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} else if (type.equals(FeatureAttributeDescriptor.TIME)){ |
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sql.append("time");
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} else if (type.equals(FeatureAttributeDescriptor.DOUBLE)){ |
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sql.append("double precision");
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if (attr.getPrecision() > 0){ |
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sql.append(" "+ attr.getPrecision());
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} |
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} else if (type.equals(FeatureAttributeDescriptor.FLOAT)){ |
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sql.append("real");
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} else if (type.equals(FeatureAttributeDescriptor.GEOMETRY)){ |
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sql.append("geometry");
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} else if (type.equals(FeatureAttributeDescriptor.INT)){ |
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if (attr.isAutoIncrement()){
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sql.append("serial");
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}else{
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sql.append("integer");
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} |
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} else if (type.equals(FeatureAttributeDescriptor.LONG)){ |
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if (attr.isAutoIncrement()){
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sql.append("bigserial");
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}else{
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sql.append("bigint");
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} |
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} else {
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throw new InitializeException(this.getName(),new Exception("Unsuported type "+type)); |
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} |
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sql.append(" ");
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// //DefeaultValue
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// if (attr.getDefaultValue() != null || (attr.getDefaultValue() == null && attr.isAllowNull() )){
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// sql.append("DEFAULT ? ");
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// sqlParams.add(attr.getDefaultValue());
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//
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// }
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//Null
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if (attr.isAllowNull()){
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sql.append("NOT NULL ");
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} else {
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sql.append("NULL ");
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} |
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// Primery key
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if (attr.isPrimaryKey()) {
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sql.append("PRIMARY KEY ");
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} |
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} |
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public DataStoreParameters add(NewFeatureStoreParameters ndsp)
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throws InitializeException, InitializeWriterException {
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Connection conn;
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try {
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conn = this.getConnection();
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} catch (ReadException e1) {
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throw new InitializeException(this.getName(),e1); |
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} |
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try {
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conn.setAutoCommit(true);
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} catch (SQLException e) { |
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throw new InitializeException(this.getName(),e); |
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} |
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DataStoreParameters params = this.add(ndsp,conn);
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return params;
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} |
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protected DataStoreParameters add(NewFeatureStoreParameters ndsp,Connection conn) |
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throws InitializeException, InitializeWriterException {
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/**
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* CREATE [ [ GLOBAL | LOCAL ] { TEMPORARY | TEMP } ] TABLE table_name (
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* { column_name data_type [ DEFAULT default_expr ] [ column_constraint
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* [ ... ] ] | table_constraint | LIKE parent_table [ { INCLUDING |
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* EXCLUDING } DEFAULTS ] } [, ... ] ) [ INHERITS ( parent_table [, ...
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* ] ) ] [ WITH OIDS | WITHOUT OIDS ] [ ON COMMIT { PRESERVE ROWS |
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* DELETE ROWS | DROP } ]
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*
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* where column_constraint is:
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*
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* [ CONSTRAINT constraint_name ] { NOT NULL | NULL | UNIQUE | PRIMARY
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* KEY | CHECK (expression) | REFERENCES reftable [ ( refcolumn ) ] [
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* MATCH FULL | MATCH PARTIAL | MATCH SIMPLE ] [ ON DELETE action ] [ ON
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* UPDATE action ] } [ DEFERRABLE | NOT DEFERRABLE ] [ INITIALLY
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* DEFERRED | INITIALLY IMMEDIATE ]
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*
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* and table_constraint is:
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*
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* [ CONSTRAINT constraint_name ] { UNIQUE ( column_name [, ... ] ) |
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* PRIMARY KEY ( column_name [, ... ] ) | CHECK ( expression ) | FOREIGN
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* KEY ( column_name [, ... ] ) REFERENCES reftable [ ( refcolumn [, ...
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* ] ) ] [ MATCH FULL | MATCH PARTIAL | MATCH SIMPLE ] [ ON DELETE
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* action ] [ ON UPDATE action ] } [ DEFERRABLE | NOT DEFERRABLE ] [
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* INITIALLY DEFERRED | INITIALLY IMMEDIATE ]
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*/
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// PreparedStatement st=null;
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Statement st=null; |
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StringBuffer sql = new StringBuffer(); |
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if (!ndsp.isValid()){
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//TODO Exception
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throw new InitializeException(this.getName(),new Exception("Parameters not valid")); |
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} |
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PostgresqlStoreParameters param = (PostgresqlStoreParameters) ndsp |
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.getDataStoreParameters(); |
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DBFeatureType fType = (DBFeatureType)ndsp.getFeatureType(); |
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sql.append("Create table " + param.tableID() + "("); |
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DBAttributeDescriptor attr; |
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FeatureAttributeDescriptor[] fads=(FeatureAttributeDescriptor[])fType.toArray(new FeatureAttributeDescriptor[0]); |
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for (int j = 0; j < fads.length-1; j++) { |
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// appendFieldToCreteSQL(attr, sql,sqlParamas);
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appendFieldToCreteSQL((DBAttributeDescriptor)fads[j], sql); |
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sql.append(",");
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} |
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attr = (DBAttributeDescriptor)fads[fads.length-1];
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appendFieldToCreteSQL(attr, sql); |
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sql.append(")");
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try{
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// st = conn.prepareStatement(sql.toString());
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// for (i=0;i<sqlParamas.size();i++){
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// st.setObject(i+1, sqlParamas.get(i));
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// }
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st = conn.createStatement(); |
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st.execute(sql.toString()); |
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} catch (SQLException e) { |
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throw new InitializeException(this.getName(),e); |
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} finally{
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if (st != null){ |
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try {
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st.close(); |
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} catch (SQLException e) { |
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// TODO ???
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e.printStackTrace(); |
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} |
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} |
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} |
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return param;
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} |
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public NewDataStoreParameters createNewDataStoreParameter()
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throws InitializeException {
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return new PostgresqlNewStoreParameter(this.parameters |
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.newStoreParameters()); |
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} |
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public void remove(DataStoreParameters dsp) throws ReadException { |
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Connection conn = this.getConnection(); |
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try {
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conn.setAutoCommit(true);
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} catch (SQLException e) { |
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throw new InitializeException(this.getName(),e); |
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} |
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this.remove(dsp, conn);
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} |
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protected void remove(DataStoreParameters dsp,Connection conn) throws ReadException { |
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Statement st=null; |
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try{
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st = conn.createStatement(); |
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st.execute("Drop table "
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+ ((PostgresqlStoreParameters) dsp).tableID()); |
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} catch (SQLException e) { |
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throw new ReadException(this.getName(),e); |
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} finally{
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if (st != null){ |
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try {
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st.close(); |
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} catch (SQLException e) { |
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// TODO ???
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e.printStackTrace(); |
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} |
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} |
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} |
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} |
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public boolean canCreate() { |
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return true; |
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} |
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public String getName() { |
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return DATAEXPLORER_NAME;
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} |
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public void init(DataExplorerParameters parameters) throws InitializeException { |
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PostgresqlResource tmpResource = new PostgresqlResource(
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(JDBCExplorerParameter) parameters); |
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PostgresqlResource theResource; |
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DefaultResourceManager resMan = DefaultResourceManager.getResourceManager(); |
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try {
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theResource = (PostgresqlResource) resMan.addResource(tmpResource, |
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this);
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} catch (DataException e1) {
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throw new InitializeException(this.getName(),e1); |
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} |
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super.init(parameters,theResource);
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try {
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this.defaultSchema = PostgresqlStoreUtils.getDefaultSchema(this |
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.getConnection(), ((JDBCExplorerParameter) this.parameters)
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.getCatalog()); |
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} catch (ReadException e) {
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throw new InitializeException(this.getName(),e); |
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} |
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} |
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public DataStoreParameters[] list() throws ReadException { |
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return this.list(((JDBCExplorerParameter)this.parameters).isShowInformationDBTables()); |
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} |
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public DataStoreParameters[] list(boolean showInformationDBTables) throws ReadException { |
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Connection conn = this.getConnection(); |
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StringBuffer sqlBuf = new StringBuffer(); |
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String sql;
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sqlBuf |
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.append("SELECT TABLE_CATALOG, TABLE_SCHEMA, TABLE_NAME, false as ISVIEW ");
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sqlBuf.append(" FROM INFORMATION_SCHEMA.TABLES ");
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sqlBuf.append(" xxWHERExx ");
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sqlBuf.append(" union ");
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sqlBuf |
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.append("SELECT TABLE_CATALOG, TABLE_SCHEMA, TABLE_NAME, true as ISVIEW ");
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sqlBuf.append(" FROM INFORMATION_SCHEMA.VIEWS ");
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sqlBuf.append(" xxWHERExx ");
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if (showInformationDBTables) {
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sql = sqlBuf |
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.toString() |
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.replaceAll("xxWHERExx",
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"");
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} else {
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sql = sqlBuf |
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.toString() |
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.replaceAll("xxWHERExx",
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"WHERE TABLE_SCHEMA NOT IN ('information_schema','pg_catalog')");
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} |
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ArrayList paramList = new ArrayList(); |
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PostgresqlStoreParameters param = null;
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ResultSet rs = null; |
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Statement st = null; |
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try{
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st = conn.createStatement(); |
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rs = st.executeQuery(sql); |
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while (rs.next()){
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param = (PostgresqlStoreParameters) this.parameters
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.newStoreParameters(); |
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param.setCatalog(rs.getString(1));
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param.setSchema(rs.getString(2));
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param.setTableName(rs.getString(3));
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param.setFields(new String[] { "*" }); |
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if (rs.getBoolean(4)) { |
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param.setIsView(param.IS_VIEW); |
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} else {
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param.setIsView(param.NOT_IS_VIEW); |
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} |
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paramList.add(param); |
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} |
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} catch (SQLException e) { |
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throw new ReadException(this.getName(),e); |
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} finally {
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if (st != null) { |
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if (rs != null) { |
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try {
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rs.close(); |
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} catch (java.sql.SQLException e) {
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throw new InitializeException( |
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PostgresqlStore.DATASTORE_NAME, e); |
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} |
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} |
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try {
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st.close(); |
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} catch (java.sql.SQLException e) {
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throw new InitializeException( |
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PostgresqlStore.DATASTORE_NAME, e); |
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} |
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} |
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} |
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return (DataStoreParameters[]) paramList |
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.toArray(new PostgresqlStoreParameters[0]); |
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} |
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public FeatureType[] getFeatureTypes(DataStoreParameters dsp) throws ReadException { |
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return new FeatureType[] { PostgresqlStoreUtils.getFeatureType(this |
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.getConnection(), (PostgresqlStoreParameters) dsp) }; |
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} |
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public String getDefaultSchema(){ |
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return this.defaultSchema; |
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} |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.dal.DataExplorer#dispose()
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*/
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public void dispose() throws DataException { |
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ResourceManager resMan = DefaultResourceManager.getResourceManager(); |
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try {
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resMan.remove(this.resource, this); |
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} catch (DataException e1) {
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throw new CloseException(this.getName(),e1); |
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} catch (KeyException e) { |
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throw new CloseException(this.getName(),e); |
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} |
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} |
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} |