Application: gvSIG desktop

/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

 *

 * Copyright (C) 2006 Prodevelop and Generalitat Valenciana.

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 2

 * of the License, or (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.

 *

 * For more information, contact:

 *

 *   Generalitat Valenciana

 *   Conselleria d'Infraestructures i Transport

 *   Av. Blasco Ib??ez, 50

 *   46010 VALENCIA

 *   SPAIN

 *

 *   +34 963862235

 *   gvsig@gva.es

 *   www.gvsig.gva.es

 *

 *    or

 *

 *   Prodevelop Integraci?n de Tecnolog?as SL

 *   Conde Salvatierra de ?lava , 34-10

 *   46004 Valencia

 *   Spain

 *

 *   +34 963 510 612

 *   +34 963 510 968

 *   gis@prodevelop.es

 *   http://www.prodevelop.es

 */

package es.prodevelop.cit.gvsig.arcims.fmap.drivers;

import com.hardcode.driverManager.DriverLoadException;

import com.hardcode.gdbms.engine.data.DataSource;

import com.hardcode.gdbms.engine.data.DataSourceFactory;

import com.hardcode.gdbms.engine.data.driver.DriverException;

import com.hardcode.gdbms.engine.data.object.ObjectSourceInfo;

import com.hardcode.gdbms.engine.instruction.EvaluationException;

import com.hardcode.gdbms.engine.instruction.SemanticException;

import com.hardcode.gdbms.engine.values.IntValue;

import com.hardcode.gdbms.engine.values.Value;

import com.hardcode.gdbms.engine.values.ValueFactory;

import com.hardcode.gdbms.parser.ParseException;

import com.iver.andami.PluginServices;

import com.iver.andami.ui.mdiManager.IWindow;

import com.iver.cit.gvsig.fmap.core.DefaultFeature;

import com.iver.cit.gvsig.fmap.core.FShape;

import com.iver.cit.gvsig.fmap.core.IFeature;

import com.iver.cit.gvsig.fmap.core.IGeometry;

import com.iver.cit.gvsig.fmap.core.ShapeFactory;

import com.iver.cit.gvsig.fmap.core.v02.FConstant;

import com.iver.cit.gvsig.fmap.drivers.DriverAttributes;

import com.iver.cit.gvsig.fmap.drivers.VectorialDriver;

import com.iver.cit.gvsig.fmap.edition.VectorialEditableAdapter;

import com.iver.cit.gvsig.fmap.layers.FBitSet;

import com.iver.cit.gvsig.fmap.layers.FLayer;

import com.iver.cit.gvsig.fmap.layers.LayerFactory;

import com.iver.cit.gvsig.fmap.layers.SelectableDataSource;

import com.iver.cit.gvsig.project.Project;

import com.iver.cit.gvsig.project.ProjectFactory;

import com.iver.cit.gvsig.project.documents.ProjectDocumentFactory;

import com.iver.cit.gvsig.project.documents.table.ProjectTable;

import com.iver.cit.gvsig.project.documents.table.ProjectTableFactory;

import com.iver.cit.gvsig.project.documents.view.ProjectView;

import com.iver.cit.gvsig.project.documents.view.gui.View;

import es.prodevelop.cit.gvsig.arcims.fmap.drivers.ArcImsAttributesDataSourceAdapter;

import es.prodevelop.cit.gvsig.arcims.fmap.layers.FFeatureLyrArcIMS;

import es.prodevelop.cit.gvsig.arcims.gui.wizards.ArcImsWizard;

import org.apache.log4j.Logger;

import org.gvsig.remoteClient.arcims.ArcImsClientP;

import org.gvsig.remoteClient.arcims.ArcImsFeatureClient;

import org.gvsig.remoteClient.arcims.ArcImsStatus;

import org.gvsig.remoteClient.arcims.ArcImsVectStatus;

import org.gvsig.remoteClient.arcims.exceptions.ArcImsException;

import org.gvsig.remoteClient.arcims.utils.FieldInformation;

import org.gvsig.remoteClient.arcims.utils.ServiceInfoTags;

import org.gvsig.remoteClient.arcims.utils.ServiceInformationLayerFeatures;

import org.gvsig.remoteClient.exceptions.ServerErrorException;

import org.gvsig.remoteClient.utils.BoundaryBox;

import org.gvsig.remoteClient.wms.ICancellable;

import java.awt.Rectangle;

import java.awt.geom.Rectangle2D;

import java.awt.geom.Rectangle2D.Double;

import java.io.File;

import java.io.IOException;

import java.net.ProtocolException;

import java.net.URL;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.Random;

import java.util.TreeMap;

import javax.swing.JFileChooser;

public class FMapFeatureArcImsDriver implements ArcImsDriver, VectorialDriver {

    private static Logger logger = Logger.getLogger(FMapFeatureArcImsDriver.class.getName());

    private ArcImsFeatureClient client;

    private String server;

    private String service;

    private String serviceType;

    private String remoteLayerName;

    private ArcImsAttributesDataSourceAdapter attsDataSourceAdapter;

    private SelectableDataSource dataSource = null;

    private DriverAttributes drvAtts;

    private ArrayList geometries;

    private HashMap pseudoGeometries;

    private int shapeType = FShape.NULL;

    private FFeatureLyrArcIMS layer;

    private HashMap overallIndexToVisibleIndex;

    private HashMap visibleIndexToOverallIndex;

    private DataSourceFactory dataSourceFactory = null;

    private Rectangle2D fullExtent;

    private IGeometry invisiblePoint = ShapeFactory.createPoint2D(0.0, 0.0);

    private VectorialEditableAdapter eadapter;

    /**

    * The constructor needs the server's URL and the name of the service to be used.

    *

    * @param host server's URL

    * @param service name of the service, chosen among the ones retrieved after a

    * request with the parameter <tt>ServiceName=Catalog</tt>

    */

    public FMapFeatureArcImsDriver(String host, String service,

        String theRemoteLayerName) {

        remoteLayerName = theRemoteLayerName;

        init(host, service);

        overallIndexToVisibleIndex = new HashMap();

        visibleIndexToOverallIndex = new HashMap();

        pseudoGeometries = new HashMap();

    }

    /**

    * The constructor needs the server's URL and the name of the service to be used.

    *

    * @param host server's URL

    * @param service name of the service, chosen among the ones retrieved after a

    * request with the parameter <tt>ServiceName=Catalog</tt>

    */

    public FMapFeatureArcImsDriver(String host, String service) {

        remoteLayerName = "None";

        init(host, service);

        overallIndexToVisibleIndex = new HashMap();

        visibleIndexToOverallIndex = new HashMap();

    }

    /**

     * This method is called by the constructor and creates the

     * <tt>client</tt> object.

     * @param host

     * @param service

     */

    public void init(String host, String svc) {

        server = host;

        service = svc;

        // This class is part of libArcIMS:

        client = new ArcImsFeatureClient(host, service,

                ServiceInfoTags.vFEATURESERVICE);

    }

    private String getIdName() {

        String id = (String) this.layer.getArcimsStatus().getLayerIds().get(0);

        ServiceInformationLayerFeatures silf = (ServiceInformationLayerFeatures) client.getServiceInformation()

                                                                                       .getLayerById(id);

        ArrayList fi = silf.getFieldInformationByType(FieldInformation.ID);

        if (fi.size() != 1) {

            logger.error("ID does not have cardinality one: " + fi.size());

        }

        return ((FieldInformation) fi.get(0)).getName();

    }

    private ArrayList getClientsColumnNames() {

        String id = (String) layer.getArcimsStatus().getLayerIds().get(0);

        ServiceInformationLayerFeatures silf = (ServiceInformationLayerFeatures) client.getServiceInformation()

                                                                                       .getLayerById(id);

        int length = silf.getFieldsInfo().size();

        ArrayList resp = new ArrayList();

        for (int i = 0; i < length; i++) {

            resp.add(silf.getFieldInformation(i).getName());

        }

        return resp;

    }

    private ArrayList getClientsColumnTypes() {

        String id = (String) layer.getArcimsStatus().getLayerIds().get(0);

        ServiceInformationLayerFeatures silf = (ServiceInformationLayerFeatures) client.getServiceInformation()

                                                                                       .getLayerById(id);

        int length = silf.getFieldsInfo().size();

        ArrayList resp = new ArrayList();

        for (int i = 0; i < length; i++) {

            resp.add(new Integer(silf.getFieldInformation(i).getType()));

        }

        return resp;

    }

    public void closeDataSource() {

        try {

            dataSource.stop();

        }

        catch (DriverException e) {

            logger.error("While closing data source ", e);

        }

    }

    public SelectableDataSource getRecordSet() {

        return getRecordSet(null);

    }

    public SelectableDataSource getRecordSet(String mustHaveThisName) {

        if (dataSource != null) {

            return dataSource;

        }

        String[] subf = new String[1];

        subf[0] = getIdName();

        ArrayList ids = new ArrayList();

        try {

            // ids = getTestIds(); 

            ids = client.getAttributes(layer.getArcimsStatus(), subf, "", null);

        }

        catch (ArcImsException e1) {

            logger.error("While getting attributes initially ", e1);

        }

        Value[] idval = getAsValueArray(ids);

        dataSourceFactory = LayerFactory.getDataSourceFactory();

        // dataSourceFactory.

        // FakeObjectDriver driver = new FakeObjectDriver();

        attsDataSourceAdapter = new ArcImsAttributesDataSourceAdapter(getClientsColumnNames(),

                getClientsColumnTypes(), idval, dataSourceFactory, this,

                mustHaveThisName);

        dataSourceFactory.addDataSource(attsDataSourceAdapter,

            attsDataSourceAdapter.getTableName());

        ObjectSourceInfo osi = (ObjectSourceInfo) dataSourceFactory.getDriverInfo(attsDataSourceAdapter.getTableName());

        osi.name = attsDataSourceAdapter.getTableName();

        osi.driverName = "ArcImsAttributesDataSourceAdapter";

        try {

            dataSource = new SelectableDataSource(attsDataSourceAdapter);

        }

        catch (DriverException e) {

            logger.error("While creating DataSource ", e);

        }

        return dataSource;

    }

    public void declareTable() {

        try {

            IWindow v = PluginServices.getMDIManager().getActiveWindow();

            if (v == null) {

                ProjectView pv = new ProjectView();

                pv.setName("Nueva");

                View newview = (View) pv.createWindow();

                newview.setModel(pv);

                Project newproj = new Project();

                newproj.setName("nuevo");

                newproj.addDocument(pv);

                // newproj.addView(newprojview);

                v = newview;

            }

            ProjectView pv = (ProjectView) ((View) v).getModel();

            ProjectTable pt = ProjectTableFactory.createTable(attsDataSourceAdapter.getName(),

                    eadapter);

            pt.setProjectDocumentFactory(new ProjectTableFactory());

            // String r = pt.getProjectDocumentFactory().getRegisterName();

            // ProjectTable pt = ProjectFactory.createTable(attsDataSourceAdapter.getName(), eadapter);

            // ProjectDocumentFactory.

            pv.getProject().addDocument(pt);

        }

        catch (Exception e) {

            logger.error("While creating DataSource ", e);

            e.printStackTrace();

        }

    }

    public void loadRecordSet() {

        if (dataSource != null) {

            return;

        }

        String[] subf = new String[1];

        subf[0] = getIdName();

        ArrayList ids = new ArrayList();

        try {

            // ids = getTestIds(); 

            ids = client.getAttributes(layer.getArcimsStatus(), subf, "", null);

        }

        catch (ArcImsException e1) {

            logger.error("While getting attributes initially ", e1);

        }

        Value[] idval = getAsValueArray(ids);

        dataSourceFactory = LayerFactory.getDataSourceFactory();

        // dataSourceFactory.

        // FakeObjectDriver driver = new FakeObjectDriver();

        attsDataSourceAdapter = new ArcImsAttributesDataSourceAdapter(getClientsColumnNames(),

                getClientsColumnTypes(), idval, dataSourceFactory, this, null);

        dataSourceFactory.addDataSource(attsDataSourceAdapter,

            attsDataSourceAdapter.getTableName());

        try {

            dataSource = new SelectableDataSource(attsDataSourceAdapter);

        }

        catch (DriverException e) {

            logger.error("While loading selectable data source");

        }

    }

    private Value[] getAsValueArray(ArrayList ids) {

        Value[] resp = new Value[ids.size()];

        for (int i = 0; i < ids.size(); i++) {

            resp[i] = ((Value[]) ids.get(i))[0];

        }

        return resp;

    }

    public void getCapabilities(URL server, ICancellable cancel)

        throws ArcImsException, IOException, ProtocolException {

        logger.error(

            "Empty method: nothing done in method getCapabilities(URL) - class: " +

            getClass().toString());

    }

    public Object getMap(ArcImsStatus status)

        throws ArcImsException, IOException, ProtocolException {

        String[] fieldquery = ((ArcImsVectStatus) status).getSubfields();

        int nooffields = fieldquery.length;

        try {

            geometries = client.getMap((ArcImsVectStatus) status);

            if (geometries.size() > 0) {

                logger.info("Start updating attributes");

                updateIndexHashMaps(geometries, fieldquery, nooffields);

                logger.info("End updating attributes");

            }

            else {

                updateIndexHashMaps(geometries, fieldquery, nooffields);

                logger.warn("No geometries retrieved from client ");

            }

        }

        catch (ServerErrorException e) {

            ArcImsException aie = new ArcImsException(e.getMessage());

            logger.error("While getting map ", aie);

            throw aie;

        }

        return geometries;

    }

    // **************************

    // 

    // **************************

    private void updateIndexHashMaps(ArrayList iFeatArrayList,

        String[] f_query, int n_of_fields) {

        int added_row_ind;

        // ------------ get id position --------------

        int idfieldind = -1;

        for (int i = 0; i < n_of_fields; i++) {

            if (f_query[i].compareTo(getIdName()) == 0) {

                idfieldind = i;

            }

        }

        if (idfieldind == -1) {

            logger.error("ID not found in query ");

        }

        // -------------------------------------------

        IntValue id;

        try {

            overallIndexToVisibleIndex.clear();

            visibleIndexToOverallIndex.clear();

            for (int i = 0; i < iFeatArrayList.size(); i++) {

                IFeature ifeat = (IFeature) iFeatArrayList.get(i);

                id = (IntValue) ifeat.getAttribute(idfieldind);

                added_row_ind = attsDataSourceAdapter.getRowIndex(id.getValue());

                addPseudoGeometry(ifeat.getGeometry(), added_row_ind);

                overallIndexToVisibleIndex.put(new Integer(added_row_ind),

                    new Integer(i));

                visibleIndexToOverallIndex.put(new Integer(i),

                    new Integer(added_row_ind));

            }

            //                        }

        }

        catch (DriverException e) {

            logger.error("While updating attributes ", e);

        }

    }

    public String getFeatureInfo(ArcImsStatus status, int i, int j,

        int max_value) throws ArcImsException, IOException, ProtocolException {

        // TODO comment

        return "";

    }

    public boolean connect(ICancellable cancel) {

        return client.connect(false, cancel);

    }

    /**

    * Gets available layers from the current server and service

    *

    * @return a TreeMap with available layers

     */

    public TreeMap getLayers() {

        return null;

        // This method is in libArcIMS

        // return client.getLayers();

    }

    /**

     * Gets the <tt>ArcImsClientP client</tt> object, onto which requests

     * are passed.

     *

     * @return the inner object that actually performs requests.

     */

    public ArcImsClientP getClient() {

        if (client == null) {

            init(server, service);

        }

        return client;

    }

    // ========== VECTORIAL DRIVER INTERFACE == START =======

    public int getShapeType() {

        if (shapeType == FShape.NULL) {

            ServiceInformationLayerFeatures silf = (ServiceInformationLayerFeatures) client.getServiceInformation()

                                                                                           .getLayerById(remoteLayerName);

            shapeType = libArcImsShapeTypeToGvSigType(silf.getIntFclassType());

        }

        return shapeType;

    }

    public int getShapeCount() throws IOException {

        try {

            // return geometries.size();

            return (int) getRecordSet().getRowCount();

        }

        catch (DriverException e) {

            IOException ioe = new IOException(e.getMessage());

            throw ioe;

        }

    }

    public DriverAttributes getDriverAttributes() {

        if (drvAtts != null) {

            return drvAtts;

        }

        drvAtts = new DriverAttributes();

        drvAtts.setLoadedInMemory(true);

        return drvAtts;

    }

    public Rectangle2D getFullExtent() throws IOException {

        return fullExtent;

    }

    //        public IGeometry getShape(int index) throws IOException {

    //                return ((IFeature) geometries.get(index)).getGeometry();

    //        }

    private void addPseudoGeometry(IGeometry igeom, int row) {

        pseudoGeometries.put(new Integer(row), igeom);

    }

    public IGeometry getShape(int index) throws IOException {

        Integer overallIndex = new Integer(index);

        Integer visibleIndex = (Integer) overallIndexToVisibleIndex.get(overallIndex);

        if (visibleIndex == null) {

            // Somebody asked for a non-visible shape.

            IGeometry igeo = (IGeometry) pseudoGeometries.get(overallIndex);

            if (igeo != null) {

                return igeo;

            }

            // We dont have the geometry and we dont have its pseudo envelope

            // (this happens when loading a project with a selection and the user

            // performs a zoom to selection)

            String id = layer.getLayerQuery();

            BoundaryBox bb = client.getServiceInformation().getLayerById(id)

                                   .getEnvelope();

            double[] fullx = new double[4];

            double[] fully = new double[4];

            fullx[0] = bb.getXmin();

            fullx[1] = bb.getXmin();

            fullx[2] = bb.getXmax();

            fullx[3] = bb.getXmax();

            fully[0] = bb.getYmin();

            fully[1] = bb.getYmax();

            fully[2] = bb.getYmin();

            fully[3] = bb.getYmax();

            IGeometry full = ShapeFactory.createMultipoint2D(fullx, fully);

            return full;

        }

        else {

            return ((IFeature) geometries.get(visibleIndex.intValue())).getGeometry();

        }

    }

    public String getName() {

        return "FMapFeatureArcImsDriver";

    }

    // ========== VECTORIAL DRIVER INTERFACE == END =======

    //        private void setTestGeometries() {

    //                IGeometry g;

    //                File wktfile = null;

    //                JFileChooser jfc = new JFileChooser();

    //                try {

    //                        jfc.setDialogTitle("Indice archivo WKT con " + getShapeCount() + " geometrias");

    //                } catch (IOException e) {

    //                        logger.error("Error while opening WKT file. ", e);

    //                }

    //            int returnVal = jfc.showOpenDialog(null);

    //            if (returnVal != JFileChooser.APPROVE_OPTION) return;

    //            wktfile = jfc.getSelectedFile();

    //                if (! jfc.accept(wktfile)) return;

    //                WKTFGeometryReader reader = new WKTFGeometryReader(wktfile);

    //                g = reader.getNextFGeometry();

    //                geometries = new ArrayList();

    //                while (g != null) {

    //                        geometries.add(g);

    //                        g = reader.getNextFGeometry();;

    //                }

    //        }

    public void setFullExtent(Rectangle2D fullExtent) {

        this.fullExtent = fullExtent;

    }

    public FFeatureLyrArcIMS getLayer() {

        return layer;

    }

    public void setLayer(FFeatureLyrArcIMS layer) {

        this.layer = layer;

    }

    //        private ArrayList getTestIds() throws ArcImsException {

    //                Value[] ids = new Value[252];

    //                

    //                for (int i=0; i<252; i++) {

    //                        ids[i] = ValueFactory.createValue(i);

    //                }

    //                ArrayList resp = new ArrayList();

    //                resp.add(ids);

    //                return resp;

    //        }

    public int getOverallIndex(int i) {

        Integer ov = (Integer) visibleIndexToOverallIndex.get(new Integer(i));

        return ov.intValue();

    }

    public void requestFeatureAttributes(FBitSet fbs) throws ArcImsException {

        if (fbs.cardinality() == 0) {

            return;

        }

        FBitSet needRequest = leaveBitsThatNeedRequest(fbs);

        requestFeatureAttributesWithoutChecking(needRequest);

    }

    public void requestBlockWithoutChecking(int[] indlimits)

        throws ArcImsException {

        FBitSet fbs = new FBitSet();

        fbs.set(indlimits[0], indlimits[1] + 1);

        int length = fbs.cardinality();

        if (length == 0) {

            return;

        }

        int[] rowinds = new int[length];

        try {

                int[] req_indices = enumarate(indlimits[0], indlimits[1]);

                int sz = req_indices.length;

                int[] req_ids = new int[sz];

                for (int i=0; i<sz; i++)

                        req_ids[i] = attsDataSourceAdapter.getRowId(req_indices[i]);

            int idcolindex = attsDataSourceAdapter.getIdIndex();

            String idFieldName = attsDataSourceAdapter.getOriginalFieldName(idcolindex);

            String inParenthesis = getInIntParenthesis(req_ids);

            String whereClause = idFieldName + " " + inParenthesis;

            String[] subflds = new String[1];

            subflds[0] = "#ALL#";

            logger.debug("Justo antes de llamar a client.getAttributes(...)");

            ArrayList atts = client.getAttributesWithEnvelope(layer.getArcimsStatus(),

                    subflds, whereClause, null);

            rowinds = getRowIndicesFromResponse(atts, idcolindex);

            // --------------------------------------------------------

            logger.debug("Justo despues de llamar a client.getAttributes(...)");

            logger.debug(

                "Justo antes de llamar a attsDataSourceAdapter.updateRow(...) " +

                atts.size() + " veces");

            for (int i = (atts.size() - 1); i >= 0; i--) {

                Value[] newrow = ((DefaultFeature) atts.get(i)).getAttributes();

                attsDataSourceAdapter.updateRow(newrow, subflds, rowinds[i]);

            }

            // -------------- pseudo geometries:

            for (int i = (atts.size() - 1); i >= 0; i--) {

                IGeometry ig = ((DefaultFeature) atts.get(i)).getGeometry();

                addPseudoGeometry(ig, rowinds[i]);

            }

            // -------------- 

            logger.debug(

                "Justo despues de llamar a attsDataSourceAdapter.updateRow(...)");

            logger.debug(

                "Justo antes de llamar a attsDataSourceAdapter.addAsRequested(...)");

            attsDataSourceAdapter.addAsRequested(fbs);

            logger.debug(

                "Justo despues de llamar a attsDataSourceAdapter.addAsRequested(...)");

        }

        catch (DriverException e) {

            ArcImsException aie = new ArcImsException("datasource_error");

            logger.error("While requesting features ", aie);

            throw aie;

        }

    }

    private int[] enumarate(int a, int b) {

            int[] resp = null;

            if (a == b) {

                    resp = new int[1];

                    resp[0] = a;

            } else {

                    resp = new int[Math.abs(b-a+1)];

                    if (a < b) {

                        for (int i=a; i<=b; i++) resp[i-a] = i;

                    } else {

                        for (int i=b; i<=a; i++) resp[i-b] = i;

                    }

            }

            return resp;

        }

        private int[] getRowIndicesFromResponse(ArrayList resp_list, int id_col_ind) {

            int sz = resp_list.size();

            int[] resp = new int[sz];

            int row_ind = 0;

            for (int i=0; i<sz; i++) {

                    Value[] item_row = ((DefaultFeature) resp_list.get(i)).getAttributes();

                    IntValue idv = (IntValue) item_row[id_col_ind];

                    row_ind = idToRow(idv.intValue());

                    resp[i] = row_ind;

            }

                return resp;

        }

        private int idToRow(int i) {

                try {

                        return attsDataSourceAdapter.getRowIndex(i);

                } catch (DriverException e) {

                        logger.error("While getting row index of id: " + i + " : " + e.getMessage());

                        return 0;

                }

        }

        public void requestFeatureAttributesWithoutChecking(FBitSet fbs)

        throws ArcImsException {

        int length = fbs.cardinality();

        if (length == 0) {

            return;

        }

        int rowcount = 0;

        int firstnonreq = 0;

        try {

            rowcount = (int) attsDataSourceAdapter.getRowCount();

        }

        catch (DriverException e1) {

            logger.error("Unexpected error while getting row count ");

            return;

        }

        firstnonreq = fbs.nextClearBit(fbs.nextSetBit(0));

        if (firstnonreq >= rowcount) {

            firstnonreq = 0;

        }

        if (length < 10) {

            fbs.or(attsDataSourceAdapter.getNonRequestedFromHere(firstnonreq,

                    attsDataSourceAdapter.getRowsPerRequest() - length));

            length = fbs.cardinality();

        }

        int[] ids = new int[length];

        int[] rowinds = new int[length];

        int idind = 0;

        try {

            for (int i = fbs.nextSetBit(0); i >= 0;

                    i = fbs.nextSetBit(i + 1)) {

                ids[idind] = attsDataSourceAdapter.getRowId(i);

                rowinds[idind] = i;

                idind++;

            }

            String inParenthesis = getInIntParenthesis(ids);

            int idcolindex = attsDataSourceAdapter.getIdIndex();

            String idFieldName = attsDataSourceAdapter.getOriginalFieldName(idcolindex);

            String whereClause = idFieldName + " " + inParenthesis;

            String[] subflds = new String[1];

            subflds[0] = "#ALL#";

            // -------------- with geometries -------------------------

            ArrayList atts = client.getAttributesWithEnvelope(layer.getArcimsStatus(),

                    subflds, whereClause, null);

            //                        ArrayList atts = client.getAttributes(layer.getArcimsStatus(),

            //                                        subflds, whereClause, null);

            // --------------------------------------------------------

            for (int i = (atts.size() - 1); i >= 0; i--) {

                IGeometry ig = ((DefaultFeature) atts.get(i)).getGeometry();

                addPseudoGeometry(ig, rowinds[i]);

            }

            // -------------- 

            for (int i = (atts.size() - 1); i >= 0; i--) {

                Value[] newrow = ((DefaultFeature) atts.get(i)).getAttributes();

                // Value[] newrow = (Value[]) atts.get(i);

                attsDataSourceAdapter.updateRow(newrow, subflds, rowinds[i]);

            }

            attsDataSourceAdapter.addAsRequested(fbs);

        }

        catch (DriverException e) {

            ArcImsException aie = new ArcImsException("datasource_error");

            logger.error("While requesting features ", aie);

            throw aie;

        }

    }

    private FBitSet leaveBitsThatNeedRequest(FBitSet fbs) {

        FBitSet resp = (FBitSet) fbs.clone();

        for (int i = resp.nextSetBit(0); i >= 0; i = resp.nextSetBit(i + 1)) {

            if (!attsDataSourceAdapter.isNonRequestedRow(i)) {

                resp.clear(i);

            }

        }

        return resp;

    }

    private String getInIntParenthesis(int[] ids) {

        String resp = "IN (";

        for (int i = 0; i < ids.length; i++) {

            resp = resp + " " + ids[i] + ",";

        }

        resp = resp.substring(0, resp.length() - 1);

        resp = resp + ")";

        return resp;

    }

    private int libArcImsShapeTypeToGvSigType(int type) {

        int resp = type;

        switch (type) {

        case FShape.MULTIPOINT:

            resp = FShape.POINT;

            break;

        }

        return resp;

    }

    public void setAdapter(VectorialEditableAdapter adapter) {

        eadapter = adapter;

    }

    public VectorialEditableAdapter getAdapter() {

        return eadapter;

    }

    public void reload() throws IOException, DriverException {

    }

    public boolean isWritable() {

        return false;

    }

    public String getRemoteLayerName() {

        return remoteLayerName;

    }

    public void setRemoteLayerName(String remoteLayerName) {

        this.remoteLayerName = remoteLayerName;

    }

}