svn-gvsig-desktop / trunk / libraries / libDataSourceDBBaseDrivers / src / org / gvsig / data / datastores / vectorial / db / jdbc / h2 / H2Store.java @ 20376
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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.SQLException; |
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import java.util.Locale; |
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import org.gvsig.data.DataManager; |
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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.datastores.vectorial.db.jdbc.WKBParser2; |
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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.InitializeWriterException; |
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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.IFeatureAttributeDescriptor; |
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import org.gvsig.data.vectorial.IFeatureCollection; |
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import org.gvsig.data.vectorial.IFeatureType; |
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import org.gvsig.metadata.IMetadata; |
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import com.iver.cit.gvsig.fmap.core.IGeometry; |
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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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private static WKBParser2 wkbParser = new WKBParser2(); |
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protected static Locale ukLocale = new Locale("en", "UK"); // English, UK version |
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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("Field Id not set", |
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this.getName());
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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("Multy fields id not supported yet", |
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this.getName());
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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("Field id '"+ fieldsID[i] +"' (id pos "+ (i+1) +") not Found", |
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this.getName());
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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("Unsuported filter/order in sqlSource mode",this.getName()); |
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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,(DBFeatureType)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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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() throws InitializeWriterException { |
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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 IDataExplorer getExplorer() throws ReadException { |
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DataManager dm = DataManager.getManager(); |
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H2ExplorerParameters explorerParams = (H2ExplorerParameters)dm.createDataExplorerParameters(H2Explorer.DATAEXPLORER_NAME); |
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explorerParams.loadFromStoreParameters(this.getParametersH2());
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return dm.createDataExplorer(explorerParams);
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} |
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public IMetadata getMetadata() {
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if (metadata==null){ |
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IMetadata tmp=super.getMetadata();
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return tmp;
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}else{
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return super.getMetadata(); |
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} |
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} |
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static String getConnectionResourceID(String dbUrl,String dbUser){ |
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return H2Store.CONNECTION_STRING+";"+dbUrl+";"+dbUser; |
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} |
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protected void loadValueFromResulset(ResultSet rs, IFeature feature, IFeatureAttributeDescriptor attr) throws ReadException { |
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IGeometry geom; |
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String name = attr.getName();
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try{
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if (attr.getDataType().equals(IFeatureAttributeDescriptor.TYPE_GEOMETRY)) {
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byte[] data = rs.getBytes(name); |
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if (data == null) { |
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geom = null;
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} else{
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geom = wkbParser.parse(data); |
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} |
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// feature.setDefaultGeometry(geom);
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feature.setGeometry(name,geom); |
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} else {
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feature.set(name, rs.getObject(name)); |
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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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} |
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protected IFeature newFeatureInstance(DBFeatureType featureType, Object[] pk) { |
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return new H2Feature(featureType,this,pk); |
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} |
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IFeature createFeatureFromResulset(ResultSet rs, DBFeatureType featureType2) throws ReadException { |
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return this.createFeature(rs, featureType2); |
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} |
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} |