svn-gvsig-desktop / trunk / libraries / libDataSourceDBBaseDrivers / src / org / gvsig / data / datastores / vectorial / db / jdbc / h2 / H2Store.java @ 20029
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package org.gvsig.data.datastores.vectorial.db.jdbc.h2; |
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import java.lang.ref.WeakReference; |
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import java.sql.Connection; |
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import java.sql.ResultSet; |
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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 java.util.Locale; |
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import org.gvsig.data.IDataCollection; |
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import org.gvsig.data.IDataExplorer; |
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import org.gvsig.data.IDataStoreParameters; |
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import org.gvsig.data.datastores.vectorial.db.DBFeatureType; |
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import org.gvsig.data.datastores.vectorial.db.jdbc.JDBCFeaturesWriter; |
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import org.gvsig.data.datastores.vectorial.db.jdbc.JDBCStore; |
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import org.gvsig.data.exception.CloseException; |
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import org.gvsig.data.exception.InitializeException; |
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import org.gvsig.data.exception.OpenException; |
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import org.gvsig.data.exception.ReadException; |
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import org.gvsig.data.spatialprovisional.IExtent; |
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import org.gvsig.data.vectorial.IFeature; |
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import org.gvsig.data.vectorial.IFeatureCollection; |
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import org.gvsig.data.vectorial.IFeatureID; |
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import org.gvsig.data.vectorial.IFeatureType; |
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import org.gvsig.metadata.IMetadata; |
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import org.gvsig.metadata.IMetadataManager; |
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import org.gvsig.metadata.MetadataManager; |
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public class H2Store extends JDBCStore{ |
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public static final String CONNECTION_STRING = "h2"; |
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public static String DATASTORE_NAME = "H2Store"; |
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protected static Locale ukLocale = new Locale("en", "UK"); // English, UK version |
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public DBFeatureType featureType;
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protected IMetadata metadata;
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public H2StoreParameters getParametersH2(){
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return (H2StoreParameters)this.parameters; |
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} |
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public void init(IDataStoreParameters parameters) throws InitializeException { |
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super.init(parameters);
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this.initConnection();
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this.initFeatureType();
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this.initSqlProperties();
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//writer.setCreateTable(false);
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//writer.setWriteAll(false);
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//writer.initialize(lyrDef);
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} |
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private void initFeatureType() throws InitializeException{ |
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H2StoreParameters dParams = this.getParametersH2();
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try {
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this.featureType = H2Utils.getFeatureType(this.connection, dParams); |
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} catch (ReadException e) {
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throw new InitializeException(DATASTORE_NAME,e); |
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} |
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String[] fieldsID = dParams.getFieldsId(); |
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if (fieldsID == null || fieldsID.length < 1){ |
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throw new InitializeException( |
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DATASTORE_NAME, |
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new Exception("Field Id not set")); |
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} else if (fieldsID.length > 1){ |
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//TODO: Falta por implementar soporte para multiples ID
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throw new InitializeException( |
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DATASTORE_NAME, |
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new Exception("Multy fields id not supported yet")); |
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} else{
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for (int i=0;i<fieldsID.length;i++){ |
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if (this.featureType.getFieldIndex(fieldsID[i]) < 0) { |
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throw new InitializeException( |
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DATASTORE_NAME, |
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new Exception("Field id '"+ fieldsID[i] +"' (id pos "+ (i+1) +") not Found")); |
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} |
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} |
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} |
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} |
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private void initConnection() throws InitializeException{ |
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H2StoreParameters dParams = this.getParametersH2();
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String dburl = dParams.getUrl();
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String dbuser = dParams.getUser();
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String dbpass = dParams.getPassw();
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this.connection = H2Utils.getConnection(dburl, dbuser, dbpass);
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} |
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public IDataCollection getDataCollection(IFeatureType type, String filter, String order) throws ReadException { |
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if (useSqlSource ){
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if (filter != null || order != null){ |
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throw new ReadException(DATASTORE_NAME, |
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new UnsupportedOperationException("Unsuported filter/order in sqlSource mode")); |
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} |
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} |
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if (type!=null && type != this.getDefaultFeatureType()){ |
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throw new UnsupportedOperationException("Type != null"); |
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}else{
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type = this.getDefaultFeatureType();
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} |
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IFeatureCollection coll; |
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if (featureManager == null){ |
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coll=new H2FeatureCollection(this,type,filter,order); |
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}else{
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if ((order != null && order != "")){ |
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coll=new H2FeatureCollectionWithFeatureID(featureManager,this,type,filter,order); |
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} else{
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if (filter == null || filter == ""){ |
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coll=new H2FeatureCollectionEditing(featureManager,this,type); |
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} else {
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coll=new H2FeatureCollectionEditingFiltered(featureManager,this,type,filter); |
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} |
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} |
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} |
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this.addObserver(new WeakReference(coll)); |
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return coll;
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} |
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public IFeature getFeatureByID(IFeatureID id) throws ReadException { |
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return getFeatureByID(featureType,((H2FeatureID)id).getKey());
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} |
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public IFeature getFeatureByID(IFeatureType featureType2, Object[] featureKey) throws ReadException { |
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if (useSqlSource){
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throw new ReadException(this.getName(), |
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new UnsupportedOperationException("Unsuported featureByID in sqlSource mode")); |
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} |
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ResultSet rs=null; |
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try{
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this.open();
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Statement st=this.getConnection().createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY); |
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String sql = this.getSqlSelectPart() + " WHERE "+ H2Utils.getFilterForID(this.featureType, featureKey); |
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rs=st.executeQuery(sql); |
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if (rs.isLast()) {
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return null; |
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}else{
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if(rs.next()){
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return H2Utils.createFeature(this, rs, this.featureType); |
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} |
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} |
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} catch (java.sql.SQLException e) {
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e.printStackTrace(); |
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throw new ReadException(DATASTORE_NAME, e); |
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} finally{
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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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// TODO ?????
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e.printStackTrace(); |
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} |
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} |
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return null; |
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} |
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protected Connection getConnection(){ |
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// FIXME: OJO REsource manager
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return this.connection; |
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} |
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Connection getCurrentConnection(){
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return this.getConnection(); |
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} |
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private void initSqlProperties() throws InitializeException{ |
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H2StoreParameters dParams = (H2StoreParameters)this.getParameters();
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if (dParams.getSqlSoure() != null){ |
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this.sqlSource = dParams.getSqlSoure();
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this.useSqlSource = true; |
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this.sqlSelectPart = null; |
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this.baseWhereClause = null; |
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this.baseOrder = null; |
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} else {
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this.sqlSelectPart = "SELECT " + dParams.getFieldsString() +" FROM "+ dParams.tableID(); |
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this.baseWhereClause = dParams.getBaseFilter();
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if (dParams.getWorkingArea() != null){ |
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String waWhere = getWorkingAreaWhere(dParams.getWorkingArea(), dParams.getSRISD());
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if (waWhere != null){ |
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this.baseWhereClause = "(("+this.baseWhereClause+") and "+waWhere +")"; |
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} |
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} |
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this.baseOrder = dParams.getBaseOrder();
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} |
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} |
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private String getWorkingAreaWhere(IExtent r, String strEPSG) { |
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//TODO????
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if (r==null){ |
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return null; |
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} |
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return null; |
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} |
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public boolean canAlterFeatureType() { |
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return true; |
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} |
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public void open() throws OpenException { |
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// FIXME: Resource Manager
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} |
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public void close() throws CloseException { |
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// FIXME: Resource Manager
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try {
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connection.close(); |
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} catch (java.sql.SQLException e) {
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throw new CloseException("H2",e); |
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} |
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} |
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public void dispose() { |
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// FIXME: Resource Manager
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} |
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public String getName() { |
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return DATASTORE_NAME;
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} |
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protected JDBCFeaturesWriter getFeaturesWriter() {
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H2FeaturesWriter writer = new H2FeaturesWriter();
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writer.init(this);
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return writer;
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} |
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public IMetadata getMetadata() {
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if (metadata==null){ |
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IMetadataManager manager=MetadataManager.getManager(); |
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metadata=manager.create(DATASTORE_NAME); |
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//TODO: Apadir los meteadatos
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} |
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return metadata;
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} |
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public IFeatureType getDefaultFeatureType() {
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// TODO Auto-generated method stub
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return this.featureType; |
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} |
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public Object getDefaultLabelingStrategy() { |
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// TODO Auto-generated method stub
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return null; |
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} |
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public Object getDefaultLegend() { |
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// TODO Auto-generated method stub
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return null; |
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} |
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public List getFeatureTypes() { |
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ArrayList list = new ArrayList(); |
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list.add(this.featureType);
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return list;
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} |
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public boolean isWithDefaultLegend() { |
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// TODO Auto-generated method stub
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return false; |
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} |
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public IDataExplorer getExplorer() {
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// TODO Auto-generated method stub
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return null; |
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} |
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} |