svn-gvsig-desktop / branches / v2_0_0_prep / libraries / libFMap_daldb / src / org / gvsig / fmap / data / feature / db / jdbc / h2 / H2Explorer.java @ 24875
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package org.gvsig.fmap.data.feature.db.jdbc.h2; |
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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 java.util.List; |
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import org.gvsig.fmap.dal.DataServerExplorerParameters; |
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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.exception.CloseException; |
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import org.gvsig.fmap.dal.exception.DataException; |
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import org.gvsig.fmap.dal.exception.InitializeException; |
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import org.gvsig.fmap.dal.exception.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.exception.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 H2Explorer extends JDBCExplorer { |
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public static String DATAEXPLORER_NAME = "H2Explorer"; |
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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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* {name dataType
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[{AS computedColumnExpression | DEFAULT expression}]
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[[NOT] NULL]
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[{AUTO_INCREMENT | IDENTITY}[(startInt [, incrementInt])]]
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[SELECTIVITY selectivity]
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[PRIMARY KEY [HASH] | UNIQUE]
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| constraint}
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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){ |
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sql.append("VARCHAR");
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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("TINYINT");
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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");
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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("OTHER");
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} else if (type.equals(FeatureAttributeDescriptor.INT)){ |
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if (attr.isAutoIncrement()){
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sql.append("IDENTITY");
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}else{
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sql.append("INT");
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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("IDENTITY");
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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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/**
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* @deprecated
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*
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* @param attr
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* @param sql
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* @param sqlParams
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* @throws InitializeException
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*/
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private void appendFieldToCreteSQL(DBAttributeDescriptor attr,StringBuffer sql,List sqlParams) throws InitializeException{ |
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/**
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* {name dataType
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[{AS computedColumnExpression | DEFAULT expression}]
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[[NOT] NULL]
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[{AUTO_INCREMENT | IDENTITY}[(startInt [, incrementInt])]]
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[SELECTIVITY selectivity]
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[PRIMARY KEY [HASH] | UNIQUE]
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| constraint}
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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){ |
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sql.append("VARCHAR");
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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("TINYINT");
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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");
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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("OTHER");
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} else if (type.equals(FeatureAttributeDescriptor.INT)){ |
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if (attr.isAutoIncrement()){
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sql.append("IDENTITY");
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}else{
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sql.append("INT");
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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("IDENTITY");
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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(), false);
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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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} |
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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 [CACHED | MEMORY | TEMP | [GLOBAL | LOCAL] TEMPORARY]
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TABLE [IF NOT EXISTS] name
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{ ( {name dataType
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[{AS computedColumnExpression | DEFAULT expression}]
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[[NOT] NULL]
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[{AUTO_INCREMENT | IDENTITY}[(startInt [, incrementInt])]]
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[SELECTIVITY selectivity]
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[PRIMARY KEY [HASH] | UNIQUE]
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| constraint} [,...] ) [ AS select ] } | { AS select }
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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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ArrayList sqlParamas = new ArrayList(); |
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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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H2StoreParameters h2Param = (H2StoreParameters)ndsp.getDataStoreParameters(); |
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DBFeatureType fType = (DBFeatureType)ndsp.getFeatureType(); |
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sql.append("Create table "+ h2Param.tableID()+"("); |
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DBAttributeDescriptor attr; |
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int i;
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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 h2Param;
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} |
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public NewDataStoreParameters createNewDataStoreParameter()
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throws InitializeException {
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return new H2NewStoreParameter(this.parameters.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 "+ ((H2StoreParameters)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(DataServerExplorerParameters parameters) throws InitializeException { |
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H2Resource tmpResource = new H2Resource((H2ExplorerParameters)parameters);
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H2Resource theResource; |
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DefaultResourceManager resMan = DefaultResourceManager.getResourceManager(); |
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try {
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theResource = (H2Resource) resMan.addResource(tmpResource, 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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((H2Resource)this.resource).close();
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this.defaultSchema = H2Utils.getDefaultSchema(this.getConnection(), |
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((JDBCExplorerParameter) this.parameters).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(((H2ExplorerParameters)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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String sql = "SELECT TABLE_CATALOG, TABLE_SCHEMA, TABLE_NAME FROM INFORMATION_SCHEMA.TABLES"; |
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if (!showInformationDBTables){
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sql = sql + " WHERE TABLE_SCHEMA <> 'INFORMATION_SCHEMA'";
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} |
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ArrayList paramList = new ArrayList(); |
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H2StoreParameters h2param = null;
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try{
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Statement st = conn.createStatement();
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ResultSet rs = st.executeQuery(sql);
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while (rs.next()){
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h2param = (H2StoreParameters) this.parameters
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.newStoreParameters(); |
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h2param.setCatalog(rs.getString(1));
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h2param.setSchema(rs.getString(2));
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h2param.setTableName(rs.getString(3));
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h2param.setFields(new String[] {"*"}); |
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paramList.add(h2param); |
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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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} |
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return (H2StoreParameters[])paramList.toArray(new H2StoreParameters[0]); |
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} |
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public FeatureType[] getFeatureTypes(DataStoreParameters dsp) throws ReadException { |
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return new FeatureType[] {H2Utils.getFeatureType(this.getConnection(), (H2StoreParameters)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.DataServerExplorer#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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} |