Application: gvSIG desktop

/**

 * gvSIG. Desktop Geographic Information System.

 *

 * Copyright (C) 2007-2013 gvSIG Association.

 *

 * 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 3

 * 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., 51 Franklin Street, Fifth Floor, Boston,

 * MA 02110-1301, USA.

 *

 * For any additional information, do not hesitate to contact us

 * at info AT gvsig.com, or visit our website www.gvsig.com.

 */

package org.gvsig.fmap.dal.store.csv;

import java.io.File;

import java.io.FileReader;

import java.io.FileWriter;

import java.io.IOException;

import java.net.URL;

import java.text.SimpleDateFormat;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.Iterator;

import java.util.List;

import java.util.Locale;

import org.apache.commons.io.FilenameUtils;

import org.apache.commons.lang3.StringUtils;

import org.cresques.cts.IProjection;

import org.gvsig.fmap.dal.DALLocator;

import org.gvsig.fmap.dal.DataManager;

import org.gvsig.fmap.dal.DataServerExplorer;

import org.gvsig.fmap.dal.DataStore;

import org.gvsig.fmap.dal.DataStoreNotification;

import org.gvsig.fmap.dal.DataTypes;

import org.gvsig.fmap.dal.FileHelper;

import org.gvsig.fmap.dal.exception.DataException;

import org.gvsig.fmap.dal.exception.InitializeException;

import org.gvsig.fmap.dal.exception.OpenException;

import org.gvsig.fmap.dal.exception.ReadException;

import org.gvsig.fmap.dal.exception.ValidateDataParametersException;

import org.gvsig.fmap.dal.feature.EditableFeature;

import org.gvsig.fmap.dal.feature.EditableFeatureAttributeDescriptor;

import org.gvsig.fmap.dal.feature.EditableFeatureType;

import org.gvsig.fmap.dal.feature.Feature;

import org.gvsig.fmap.dal.feature.FeatureAttributeDescriptor;

import org.gvsig.fmap.dal.feature.FeatureAttributeEmulator;

import org.gvsig.fmap.dal.feature.FeatureSet;

import org.gvsig.fmap.dal.feature.FeatureStore;

import org.gvsig.fmap.dal.feature.FeatureType;

import org.gvsig.fmap.dal.feature.exception.PerformEditingException;

import org.gvsig.fmap.dal.feature.spi.FeatureProvider;

import org.gvsig.fmap.dal.feature.spi.FeatureStoreProviderServices;

import org.gvsig.fmap.dal.feature.spi.memory.AbstractMemoryStoreProvider;

import org.gvsig.fmap.dal.resource.ResourceAction;

import org.gvsig.fmap.dal.resource.file.FileResource;

import org.gvsig.fmap.dal.resource.spi.ResourceConsumer;

import org.gvsig.fmap.dal.resource.spi.ResourceProvider;

import org.gvsig.fmap.dal.serverexplorer.filesystem.FilesystemServerExplorer;

import org.gvsig.fmap.dal.serverexplorer.filesystem.FilesystemServerExplorerParameters;

import org.gvsig.fmap.dal.spi.DataStoreProviderServices;

import org.gvsig.fmap.dal.store.csv.simplereaders.CSVReader;

import org.gvsig.fmap.dal.store.csv.simplereaders.FixedLenReader;

import org.gvsig.fmap.dal.store.csv.simplereaders.SimpleReader;

import org.gvsig.fmap.geom.Geometry;

import org.gvsig.fmap.geom.GeometryLocator;

import org.gvsig.fmap.geom.GeometryManager;

import org.gvsig.fmap.geom.aggregate.MultiPoint;

import org.gvsig.fmap.geom.primitive.Envelope;

import org.gvsig.fmap.geom.primitive.Point;

import org.gvsig.fmap.geom.type.GeometryType;

import org.gvsig.tools.ToolsLocator;

import org.gvsig.tools.dataTypes.CoercionException;

import org.gvsig.tools.dataTypes.DataType;

import org.gvsig.tools.dataTypes.DataTypesManager;

import org.gvsig.tools.dataTypes.DataTypesManager.Coercion;

import org.gvsig.tools.dataTypes.DataTypesManager.CoercionWithLocale;

import org.gvsig.tools.dispose.DisposableIterator;

import org.gvsig.tools.dynobject.exception.DynFieldNotFoundException;

import org.gvsig.tools.evaluator.AbstractEvaluator;

import org.gvsig.tools.evaluator.EvaluatorData;

import org.gvsig.tools.evaluator.EvaluatorException;

import org.gvsig.tools.exception.BaseException;

import org.gvsig.tools.exception.NotYetImplemented;

import org.gvsig.tools.persistence.PersistentState;

import org.gvsig.tools.persistence.exception.PersistenceException;

import org.gvsig.tools.task.SimpleTaskStatus;

import org.gvsig.tools.task.TaskStatusManager;

import org.gvsig.tools.visitor.VisitCanceledException;

import org.gvsig.tools.visitor.Visitor;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import org.supercsv.io.CsvListWriter;

import org.supercsv.prefs.CsvPreference;

public class CSVStoreProvider extends AbstractMemoryStoreProvider implements

        ResourceConsumer {

    private static final Logger logger = LoggerFactory.getLogger(CSVStoreProvider.class);

    public static final String NAME = "CSV";

    public static final String DESCRIPTION = "CSV file";

    public static final String METADATA_DEFINITION_NAME = NAME;

    private ResourceProvider resource;

    private long counterNewsOIDs = 0;

    private Envelope envelope;

    private boolean need_calculate_envelope = false;

    private SimpleTaskStatus taskStatus;

    public CSVStoreProvider(CSVStoreParameters parameters,

            DataStoreProviderServices storeServices) throws InitializeException {

        super(

                parameters,

                storeServices,

                FileHelper.newMetadataContainer(METADATA_DEFINITION_NAME)

        );

        TaskStatusManager manager = ToolsLocator.getTaskStatusManager();

        this.taskStatus = manager.createDefaultSimpleTaskStatus("CSV");

        counterNewsOIDs = 0;

        File file = getCSVParameters().getFile();

        resource = this.createResource(

                FileResource.NAME,

                new Object[]{file.getAbsolutePath()}

        );

        resource.addConsumer(this);

        initializeFeatureTypes();

    }

    private CSVStoreParameters getCSVParameters() {

        return (CSVStoreParameters) this.getParameters();

    }

    public String getProviderName() {

        return NAME;

    }

    public boolean allowWrite() {

        return false;

    }

    private String getFullFileName() {

        // Usar solo para mostrar mensajes en el logger.

        String s = "(unknow)";

        try {

            s = getCSVParameters().getFile().getAbsolutePath();

        } catch (Exception e2) {

            s = "(unknow)";

        }

        return s;

    }

    public void open() throws OpenException {

        if ( this.data != null ) {

            return;

        }

        this.data = new ArrayList<FeatureProvider>();

        resource.setData(new HashMap());

        counterNewsOIDs = 0;

        try {

            loadFeatures();

        } catch (RuntimeException e) {

            logger.warn("Can't load features from CSV '" + getFullFileName() + "'.", e);

            throw e;

        } catch (Exception e) {

            logger.warn("Can't load features from CSV '" + getFullFileName() + "'.", e);

            throw new RuntimeException(e);

        }

    }

    public DataServerExplorer getExplorer() throws ReadException {

        DataManager manager = DALLocator.getDataManager();

        FilesystemServerExplorerParameters params;

        try {

            params = (FilesystemServerExplorerParameters) manager

                    .createServerExplorerParameters(FilesystemServerExplorer.NAME);

            params.setRoot(this.getCSVParameters().getFile().getParent());

            return manager.openServerExplorer(FilesystemServerExplorer.NAME, params);

        } catch (DataException e) {

            throw new ReadException(this.getProviderName(), e);

        } catch (ValidateDataParametersException e) {

            throw new ReadException(this.getProviderName(), e);

        }

    }

    class Writer {

        private Envelope envelope = null;

        private boolean calculate_envelope = false;

        private CsvListWriter listWriter = null;

        private CsvPreference csvpreferences = null;

        private FileWriter fwriter = null;

        private FeatureType ftype;

        private File file;

        private String[] values;

        private FeatureAttributeDescriptor[] descriptors;

        private Coercion convert = null;

        private int errorcounts = 0;

        private Throwable lasterror = null;

        private Locale locale = null;

        public void initialize(File file, FeatureType ftype, CsvPreference csvpreferences) {

            this.file = file;

            this.ftype = ftype;

            this.csvpreferences = csvpreferences;

            this.locale = CSVStoreParameters.getLocale(getCSVParameters());

            if ( csvpreferences == null ) {

                this.csvpreferences = CsvPreference.STANDARD_PREFERENCE;

            }

            if ( ftype.getDefaultGeometryAttributeName() != null ) {

                this.calculate_envelope = true;

            }

            this.descriptors = this.ftype.getAttributeDescriptors();

            this.convert = ToolsLocator.getDataTypesManager().getCoercion(org.gvsig.tools.dataTypes.DataTypes.STRING);

            this.errorcounts = 0;

        }

        public void begin() {

            try {

                this.fwriter = new FileWriter(file);

            } catch (IOException e) {

                logger.warn("Can't open file for write (" + file.getAbsolutePath() + ").", e);

                throw new RuntimeException(e);

            }

            this.listWriter = new CsvListWriter(this.fwriter, this.csvpreferences);

            int n = 0;

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

                FeatureAttributeDescriptor descriptor = descriptors[i];

                if ( descriptor.getEvaluator() == null ) {

                    n++;

                }

            }

            String[] header = new String[n];

            this.values = new String[n];

            n = 0;

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

                FeatureAttributeDescriptor descriptor = descriptors[i];

                if ( descriptor.getEvaluator() == null ) {

                    String name = descriptor.getName();

                    String typeName = descriptor.getDataTypeName();

                    if ( descriptor.getDataType().getType() == DataTypes.STRING ) {

                        header[n++] = name + "__" + typeName + "__" + descriptor.getSize();

                    } else {

                        header[n++] = name + "__" + typeName;

                    }

                }

            }

            try {

                listWriter.writeHeader(header);

            } catch (Exception e) {

                logger.warn("Can't write header '" + header.toString() + "' file for write (" + file.getAbsolutePath() + ").", e);

                throw new RuntimeException(e);

            }

        }

        public void add(FeatureProvider feature) {

            if ( this.calculate_envelope ) {

                Geometry geom = feature.getDefaultGeometry();

                if ( geom != null ) {

                    if ( envelope == null ) {

                        try {

                            envelope = (Envelope) geom.getEnvelope().clone();

                        } catch (CloneNotSupportedException e) {

                            logger.warn("Este error no deberia pasar, siempre se puede hacer un clone de un envelope.", e);

                        }

                    } else {

                        envelope.add(geom.getEnvelope());

                    }

                }

            }

            int n = 0;

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

                FeatureAttributeDescriptor descriptor = descriptors[i];

                if ( descriptor.getEvaluator() == null ) {

                    Object value = feature.get(i);

                    try {

                        n++;

                        if ( this.convert != null && this.convert instanceof CoercionWithLocale ) {

                            values[n] = (String) ((CoercionWithLocale) this.convert).coerce(value, this.locale);

                        } else {

                            values[n] = (String) this.convert.coerce(value);

                        }

                    } catch (CoercionException e) {

                        try {

                            values[n] = value.toString();

                        } catch (Exception ex) {

                            values[n] = "";

                        }

                        if ( errorcounts++ <= 10 ) {

                            this.lasterror = e;

                            logger.warn("Can't convert value of field " + i + " to string in CVS file '" + getFullFileName() + "'.", e);

                            if ( errorcounts == 10 ) {

                                logger.warn("Too many error writing CVS file '" + getFullFileName() + "', don't output more.");

                            }

                        }

                    }

                }

            }

            try {

                this.listWriter.writeHeader(values);

            } catch (IOException e) {

                if ( errorcounts++ <= 10 ) {

                    this.lasterror = e;

                    logger.warn("Can't write values to CVS file '" + getFullFileName() + "'.", e);

                    if ( errorcounts == 10 ) {

                        logger.warn("Too many error writing CVS file '" + getFullFileName() + "', don't output more.");

                    }

                }

            }

        }

        public void end() throws PerformEditingException {

            if ( this.errorcounts > 0 ) {

                throw new PerformEditingException(this.file.getAbsolutePath(), lasterror);

            }

            if ( listWriter != null ) {

                try {

                    listWriter.close();

                } catch (Exception ex) {

                    // Ignore error

                }

                listWriter = null;

            }

            if ( fwriter != null ) {

                try {

                    fwriter.close();

                } catch (Exception ex) {

                    // Ignore error

                }

                fwriter = null;

            }

        }

        public Envelope getEnvelope() {

            return this.envelope;

        }

    }

    public void performChanges(Iterator deleteds, Iterator inserteds, Iterator updateds, Iterator originalFeatureTypesUpdated) throws PerformEditingException {

        try {

            this.taskStatus.add();

            taskStatus.message("_preparing");

            getResource().execute(new ResourceAction() {

                public Object run() throws Exception {

                    FeatureSet features = null;

                    DisposableIterator it = null;

                    try {

                        File file = (File) resource.get();

                        Writer writer = new Writer();

                        writer.initialize(file, getStoreServices().getDefaultFeatureType(), getCSVPreferences());

                        features

                                = getStoreServices().getFeatureStore()

                                .getFeatureSet();

                        List<FeatureProvider> newdata = new ArrayList<FeatureProvider>();

                        writer.begin();

                        it = features.fastIterator();

                        taskStatus.setRangeOfValues(0, 0);

                        long counter = 0;

                        while ( it.hasNext() ) {

                            taskStatus.setCurValue(counter++);

                            FeatureProvider feature = getStoreServices().getFeatureProviderFromFeature(

                                    (org.gvsig.fmap.dal.feature.Feature) it.next());

                            writer.add(feature);

                            if ( feature.getOID() == null ) {

                                logger.warn("feature without OID");

                                feature.setOID(createNewOID());

                            }

                            newdata.add(feature);

                        }

                        data = newdata;

                        if ( writer.getEnvelope() != null ) {

                            envelope = writer.getEnvelope().getGeometry().getEnvelope();

                        }

                        resource.notifyChanges();

                        writer.end();

                    } finally {

                        if ( it != null ) {

                            it.dispose();

                        }

                        if ( features != null ) {

                            features.dispose();

                        }

                    }

                    return null;

                }

                private CsvPreference getCSVPreferences() {

                    CSVReader reader = new CSVReader(getCSVParameters());

                    return reader.getCSVPreferences();

                }

            });

            this.taskStatus.terminate();

        } catch (Exception e) {

            this.taskStatus.abort();

            throw new PerformEditingException(getResource().toString(), e);

        } finally {

            this.taskStatus.remove();

        }

    }

    public boolean closeResourceRequested(ResourceProvider resource) {

        return true;

    }

    public int getOIDType() {

        return DataTypes.LONG;

    }

    public boolean supportsAppendMode() {

        return false;

    }

    public void append(FeatureProvider featureProvider) {

        throw new UnsupportedOperationException();

    }

    public void beginAppend() {

        throw new UnsupportedOperationException();

    }

    public void endAppend() {

        throw new UnsupportedOperationException();

    }

    public void saveToState(PersistentState state) throws PersistenceException {

        throw new NotYetImplemented();

    }

    public void loadFromState(PersistentState state) throws PersistenceException {

        throw new NotYetImplemented();

    }

    public Object createNewOID() {

        return new Long(counterNewsOIDs++);

    }

    protected void initializeFeatureTypes() throws InitializeException {

        try {

            this.open();

        } catch (OpenException e) {

            throw new InitializeException(this.getProviderName(), e);

        }

    }

    public Envelope getEnvelope() throws DataException {

        this.open();

        if ( this.envelope != null ) {

            return this.envelope;

        }

        if ( !this.need_calculate_envelope ) {

            return null;

        }

        FeatureStore fs = this.getFeatureStore();

        FeatureType ft = fs.getDefaultFeatureType();

        FeatureAttributeDescriptor fad = ft.getAttributeDescriptor(ft.getDefaultGeometryAttributeIndex());

        try {

            this.envelope = GeometryLocator.getGeometryManager().createEnvelope(fad.getGeomType().getSubType());

            fs.accept(new Visitor() {

                public void visit(Object obj) throws VisitCanceledException, BaseException {

                    Feature f = (Feature) obj;

                    Geometry geom = f.getDefaultGeometry();

                    if ( geom != null ) {

                        envelope.add(geom.getEnvelope());

                    }

                }

            });

        } catch (BaseException e) {

            logger.warn("Can't calculate the envelope of CSV file '" + this.getFullName() + "'.", e);

            this.envelope = null;

        }

        this.need_calculate_envelope = false;

        return this.envelope;

    }

    public Object getDynValue(String name) throws DynFieldNotFoundException {

        if ( DataStore.METADATA_ENVELOPE.equalsIgnoreCase(name) ) {

            try {

                return this.getEnvelope();

            } catch (DataException e) {

                return null;

            }

        } else {

            if ( DataStore.METADATA_CRS.equalsIgnoreCase(name) ) {

                IProjection pro = CSVStoreParameters.getCRS(this.getCSVParameters());

                if ( pro != null ) {

                    return pro;

                }

            }

        }

        return super.getDynValue(name);

    }

    public void resourceChanged(ResourceProvider resource) {

        this.getStoreServices().notifyChange(

                DataStoreNotification.RESOURCE_CHANGED,

                resource);

    }

    public Object getSourceId() {

        return this.getCSVParameters().getFile();

    }

    public String getName() {

        String name = this.getCSVParameters().getFile().getName();

        return FilenameUtils.getBaseName(name);

    }

    public String getFullName() {

        return this.getCSVParameters().getFile().getAbsolutePath();

    }

    public ResourceProvider getResource() {

        return resource;

    }

    private boolean isEmpty(String s) {

        if ( s == null ) {

            return true;

        }

        return s.trim().length() == 0;

    }

    private class FieldTypeParser {

        public String name = null;

        public int type = DataTypes.STRING;

        public int size = 0;

        public boolean allowNulls = true;

        public int geometryType = Geometry.TYPES.GEOMETRY;

        private String typename = "string";

        FieldTypeParser() {

        }

        private int getType(String value) {

            DataTypesManager dataTypesManager = ToolsLocator.getDataTypesManager();

            return dataTypesManager.getType(typename);

        }

        // El formato seria:

        //   name[:typename[:size[:notnull|null]]]

        //   name[:GEOMETRY[:geometry_type[:notnull|null]]]

        //   name[__typename[__size[__notnull|null]]]

        //

        public boolean parse(String value) {

            String typename = null;

            String[] ss = null;

            if ( value.contains(":") ) {

                ss = value.split(":");

            } else if ( value.contains("__") ) {

                ss = value.split("__");

            }

            if ( ss == null ) {

                this.name = value;

                return true;

            }

            switch (ss.length) {

            case 4:

                if ( !StringUtils.isBlank(ss[3]) ) {

                    if ( "notnull".equalsIgnoreCase(ss[3].trim()) ) {

                        this.allowNulls = false;

                    } else {

                        this.allowNulls = true;

                    }

                }

            case 3:

                if ( !StringUtils.isBlank(ss[1]) ) {

                    this.typename = ss[1].trim();

                    this.type = this.getType(this.typename);

                    if ( this.type == DataTypes.INVALID ) {

                        this.type = DataTypes.STRING;

                        logger.info("Type '" + typename + "' not valid for attribute '" + value + "' in CSV file '" + getFullFileName() + "'.");

                    }

                }

                if ( !StringUtils.isBlank(ss[2]) ) {

                    if( this.type == DataTypes.GEOMETRY ) {

                        String s = ss[2].trim();

                        if( s.equalsIgnoreCase("line") || s.equalsIgnoreCase("linestring") || s.equalsIgnoreCase("curve") ) {

                            this.geometryType = Geometry.TYPES.CURVE;

                        } else if( s.equalsIgnoreCase("multiline") || s.equalsIgnoreCase("multilinestring")  || s.equalsIgnoreCase("multicurve") ) {

                            this.geometryType = Geometry.TYPES.MULTICURVE;

                        } else if( s.equalsIgnoreCase("point") ) {

                            this.geometryType = Geometry.TYPES.POINT;

                        } else if( s.equalsIgnoreCase("multipoint") ) {

                            this.geometryType = Geometry.TYPES.MULTIPOINT;

                        } else if( s.equalsIgnoreCase("polygon") || s.equalsIgnoreCase("surface") ) {

                            this.geometryType = Geometry.TYPES.POLYGON;

                        } else if( s.equalsIgnoreCase("multipolygon") || s.equalsIgnoreCase("multisurface") ) {

                            this.geometryType = Geometry.TYPES.MULTISURFACE;

                        }

                        this.size = 1;

                    } else {

                        try {

                            this.size = Integer.parseInt(ss[2]);

                        } catch (Exception ex) {

                            logger.warn("Ignore incorrect field size for field " + value + " in CSV header of '" + getFullFileName() + "'.", ex);

                        }

                    }

                }

                this.name = ss[0].trim();

                break;

            case 2:

                if ( !StringUtils.isBlank(ss[1]) ) {

                    this.typename = ss[1].trim();

                    this.type = this.getType(this.typename);

                    if ( this.type == DataTypes.INVALID ) {

                        this.type = DataTypes.STRING;

                        logger.info("Type '" + typename + "' not valid for attribute '" + value + "' in CSV file '" + getFullFileName() + "'.");

                    }

                }

            case 1:

                this.name = ss[0].trim();

                break;

            }

            if ( this.type != DataTypes.STRING ) {

                this.size = 0;

            }

            return true;

        }

    }

    private EditableFeatureType getFeatureType(String headers[], int automaticTypes[]) {

        EditableFeatureType fType = getStoreServices().createFeatureType(this.getName());

        fType.setHasOID(true);

        FieldTypeParser[] fieldTypes = new FieldTypeParser[headers.length];

        //

        // Calculamos cuales pueden ser los tipos de datos

        //

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

            fieldTypes[i] = new FieldTypeParser();

        }

        // Asuminos los tipos pasados por parametro, que se supone

        // son los detectados automaticamente.

        if ( automaticTypes != null ) {

            for ( int i = 0; i < fieldTypes.length && i < automaticTypes.length; i++ ) {

                fieldTypes[i].type = automaticTypes[i];

            }

        }

        // Luego probamos con lo que diga las cabezeras del CVS, sobreescribiendo

        // los tipos anteriores en caso de definirse en la cabezara.

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

            if ( !fieldTypes[i].parse(headers[i]) ) {

                continue;

            }

        }

        // Y por ultimo hacemos caso a lo que se haya especificado en los parametros

        // de apertura del CSV, teniendo esto prioridad sobre todo.

        String param_types_def = CSVStoreParameters.getRawFieldTypes(this.getParameters());

        if (StringUtils.isNotBlank(param_types_def)) {

            String sep = CSVStoreParameters.getDelimiter(param_types_def);

            if ( StringUtils.isNotBlank(sep) ) {

                String[] param_types = param_types_def.split(sep);

                for (int i = 0; i < fieldTypes.length && i < param_types.length; i++) {

                    if (!fieldTypes[i].parse(param_types[i])) {

                        continue;

                    }

                }

            }

        }

        //

        // Una vez ya sabemos los tipos de datos rellenamos el feature-type

        //

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

            EditableFeatureAttributeDescriptor fad = fType.add(

                    fieldTypes[i].name,

                    fieldTypes[i].type

            );

            fad.setSize(fieldTypes[i].size);

            fad.setAllowNull(fieldTypes[i].allowNulls);

            if ( fieldTypes[i].type == DataTypes.GEOMETRY ) {

                if( fType.getDefaultGeometryAttributeName() == null ) {

                    fType.setDefaultGeometryAttributeName(fieldTypes[i].name);

                }

                fad.setGeometryType(fieldTypes[i].geometryType);

            }

        }

        String[] pointDimensionNames = CSVStoreParameters.getPointDimensionNames(this.getParameters());

        if ( pointDimensionNames != null ) {

            PointAttributeEmulator emulator = new PointAttributeEmulator(pointDimensionNames);

            EditableFeatureAttributeDescriptor attr = fType.add("GEOM", DataTypes.GEOMETRY, emulator);

            GeometryManager geommgr = GeometryLocator.getGeometryManager();

            GeometryType gt;

            try {

                gt = geommgr.getGeometryType(Geometry.TYPES.GEOMETRY, Geometry.SUBTYPES.GEOM3D);

                attr.setGeometryType(gt);

                attr.setGeometryType(Geometry.TYPES.POINT);

                attr.setGeometrySubType(Geometry.SUBTYPES.GEOM3D);

            } catch (Exception e) {

                logger.warn("Can't set geometry type for the calculated field in CSV file '" + getFullFileName() + "'.", e);

            }

        }

        return fType;

    }

    static class PointAttributeEmulator implements FeatureAttributeEmulator {

        private static final Logger logger = LoggerFactory.getLogger(ToPointEvaluaror.class);

        private static final int XNAME = 0;

        private static final int YNAME = 1;

        private static final int ZNAME = 2;

        private final GeometryManager geommgr;

        private final String[] fieldNames;

        private final Coercion toDouble;

        private final DataType dataType;

        private int errorcount = 0;

        public PointAttributeEmulator(String[] pointDimensionNames) {

            if ( pointDimensionNames.length > 2 ) {

                this.fieldNames = new String[3];

                this.fieldNames[ZNAME] = pointDimensionNames[2];

            } else {

                this.fieldNames = new String[2];

            }

            this.fieldNames[XNAME] = pointDimensionNames[0];

            this.fieldNames[YNAME] = pointDimensionNames[1];

            this.geommgr = GeometryLocator.getGeometryManager();

            DataTypesManager datatypeManager = ToolsLocator.getDataTypesManager();

            this.toDouble = datatypeManager.getCoercion(DataTypes.DOUBLE);

            this.dataType = datatypeManager.get(DataTypes.GEOMETRY);

        }

        public Object get(Feature feature) {

            try {

                Object valueX = feature.get(this.fieldNames[XNAME]);

                valueX = toDouble.coerce(valueX);

                if ( valueX == null ) {

                    return null;

                }

                Object valueY = feature.get(this.fieldNames[YNAME]);

                valueY = toDouble.coerce(valueY);

                if ( valueY == null ) {

                    return null;

                }

                Object valueZ = null;

                if ( this.fieldNames.length > 2 ) {

                    valueZ = toDouble.coerce(feature.get(this.fieldNames[ZNAME]));

                    if ( valueZ == null ) {

                        return null;

                    }

                }

                double x = ((Double) valueX).doubleValue();

                double y = ((Double) valueY).doubleValue();

                Point point = geommgr.createPoint(x, y, Geometry.SUBTYPES.GEOM3D);

                if ( this.fieldNames.length > 2 ) {

                    double z = ((Double) valueZ).doubleValue();

                    point.setCoordinateAt(2, z);

                }

                return point;

            } catch (Exception ex) {

                if ( ++errorcount < 5 ) {

                    logger.warn("[" + errorcount + "] Can't create point in CSV provider. XNAME='"

                            + this.fieldNames[XNAME] + "', YNAME='" + this.fieldNames[XNAME] + "' feature=" + feature.toString(), ex);

                }

                return null;

            }

        }

        public void set(EditableFeature feature, Object value) {

            if ( value == null ) {

                return;

            }

            Point point = null;

            if ( value instanceof MultiPoint ) {

                point = (Point) ((MultiPoint) value).getPrimitiveAt(0);

            } else {

                point = (Point) value;

            }

            feature.set(this.fieldNames[XNAME], point.getX());

            feature.set(this.fieldNames[YNAME], point.getY());

            if ( this.fieldNames.length > 2 ) {

                feature.set(this.fieldNames[ZNAME], point.getCoordinateAt(2));

            }

        }

        public boolean allowSetting() {

            return true;

        }

        public String[] getRequiredFieldNames() {

            return this.fieldNames;

        }

    }

    static class ToPointEvaluaror extends AbstractEvaluator {

        private static final Logger logger = LoggerFactory.getLogger(ToPointEvaluaror.class);

        private GeometryManager geommgr = null;

        private String xname = null;

        private String yname = null;

        private String zname = null;

        private Coercion toDouble;

        private int errorcount = 0;

        ToPointEvaluaror(String[] pointDimensionNames) {

            this.xname = pointDimensionNames[0];

            this.yname = pointDimensionNames[1];

            if ( pointDimensionNames.length > 2 ) {

                this.zname = pointDimensionNames[2];

            }

            this.geommgr = GeometryLocator.getGeometryManager();

            this.toDouble = ToolsLocator.getDataTypesManager().getCoercion(DataTypes.DOUBLE);

        }

        public Object evaluate(EvaluatorData data) throws EvaluatorException {

            try {

                double x = ((Double) toDouble.coerce(data.getDataValue(xname))).doubleValue();

                double y = ((Double) toDouble.coerce(data.getDataValue(yname))).doubleValue();

                Point point = geommgr.createPoint(x, y, Geometry.SUBTYPES.GEOM3D);

                if ( zname != null ) {

                    double z = ((Double) toDouble.coerce(data.getDataValue(zname))).doubleValue();

                    point.setCoordinateAt(2, z);

                }

                return point;

            } catch (Exception ex) {

                if ( ++errorcount < 5 ) {

                    logger.warn("[" + errorcount + "] Can't create point in CSV provider. XNAME='"

                            + xname + "', YNAME='" + yname + "', ZNAME='" + zname + "', data=" + data.toString());

                }

                return null;

            }

        }

        public String getName() {

            return "ToPointEvaluaror";

        }

    }

    private SimpleReader getSimpleReader(FileReader in) {

        SimpleReader reader;

        if ( CSVStoreParameters.getRawFieldsDefinition(getCSVParameters()) != null ) {

            reader = new FixedLenReader(in, getCSVParameters());

        } else {

            reader = new CSVReader(in, getCSVParameters());

        }

        return reader;

    }

    private void loadFeatures() throws IOException, DataException,

            CoercionException, CloneNotSupportedException {

        FileReader in = null;

        SimpleReader reader = null;

        try {

            String headers[] = null;

            FeatureStoreProviderServices store = this.getStoreServices();

            boolean ignore_errors = CSVStoreParameters.getIgnoreErrors(getCSVParameters());

            in = new FileReader(this.getCSVParameters().getFile());

            reader = getSimpleReader(in);

            headers = CSVStoreParameters.getHeaders(getCSVParameters());

            if ( headers == null ) {

                headers = reader.getHeader();

                if ( headers == null ) {

                    String msg = "Can't retrieve header from csv file '"

                            + this.getCSVParameters().getFile()

                            .getAbsolutePath()

                            + "' and not specified in the parameters.";

                    logger.warn(msg);

                    throw new RuntimeException(msg);

                }

            }

            // Initialize the feature types

            EditableFeatureType edftype = this.getFeatureType(headers, automaticDetectionOfTypes());

            FeatureType ftype = edftype.getNotEditableCopy();

            List<FeatureType> ftypes = new ArrayList<FeatureType>();

            ftypes.add(ftype);

            store.setFeatureTypes(ftypes, ftype);

            Coercion coercion[] = new Coercion[ftype.size()];

            int sizes[] = new int[ftype.size()];

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

                sizes[i] = -1;

                FeatureAttributeDescriptor ad = ftype.getAttributeDescriptor(i);

                coercion[i] = ad.getDataType().getCoercion();

                if ( ad.getDataType().getType() == DataTypes.STRING ) {

                    if ( ad.getSize() == 0 ) {

                        // Es un string y no tiene un size asignado.

                        // Lo ponemos a cero para calcularlo.

                        sizes[i] = 0;

                    }

                }

            }

            if ( ftype.getDefaultGeometryAttributeName() != null ) {

                this.need_calculate_envelope = true;

            }

            Locale locale = CSVStoreParameters.getLocale(getCSVParameters());

            taskStatus.message("_loading");

            int count = 0;

            int count_errors = 0;

            List<String> row = reader.read();

            int skipLines = CSVStoreParameters.getSkipLines(getCSVParameters());

            if ( skipLines > 0 ) {

                row = reader.skip(skipLines);

            }

            while ( row != null ) {

                taskStatus.setCurValue(++count);

                FeatureProvider feature = this.createFeatureProvider(ftype);

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

                    Object rawvalue = row.get(i);

                    try {

                        Object value = null;

                        if ( locale != null && coercion[i] instanceof CoercionWithLocale ) {

                            value = ((CoercionWithLocale) (coercion[i])).coerce(rawvalue, locale);

                        } else {

                            value = coercion[i].coerce(rawvalue);

                        }

                        feature.set(i, value);

                        if ( sizes[i] >= 0 && value != null ) {

                            int x = ((String) value).length();

                            if ( sizes[i] < x ) {

                                sizes[i] = x;

                            }

                        }

                    } catch (RuntimeException ex) {

                        if ( !ignore_errors ) {

                            throw ex;

                        }

                        if ( count_errors++ < 10 ) {

                            logger.warn("Can't load value of attribute " + i + " in row " + count + ".", ex);

                        }

                        if ( count_errors == 10 ) {

                            logger.info("Too many errors, suppress messages.");

                        }

                    }

                }

                this.addFeatureProvider(feature);

                row = reader.read();

            }

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

                if ( sizes[i] > 0 ) {

                    EditableFeatureAttributeDescriptor efad = ((EditableFeatureAttributeDescriptor) edftype.getAttributeDescriptor(i));

                    efad.setSize(sizes[i]);

                }

            }

            // Volvemos a asignar al store el featuretype, ya que puede

            // haber cambiado.

            ftype = edftype.getNotEditableCopy();

            ftypes = new ArrayList<FeatureType>();

            ftypes.add(ftype);

            store.setFeatureTypes(ftypes, ftype);

            taskStatus.terminate();

        } catch(Exception ex) {

            int lineno = 0;

            if( reader!=null ) {

                lineno = reader.getLine();

            }

            throw new RuntimeException("Problems reading file '"+getFullFileName()+"' near line "+lineno+".", ex);

        } finally {

            if ( reader != null ) {

                try {

                    reader.close();

                } catch (Exception ex) {

                    // Do nothing

                }

                reader = null;

            }

            if ( in != null ) {

                try {

                    in.close();

                } catch (Exception ex) {

                    // Do nothing

                }

                in = null;

            }

        }

    }

    private int[] automaticDetectionOfTypes() throws IOException {

        boolean automatic_types_detection = CSVStoreParameters.getAutomaticTypesDetection(getCSVParameters());

        if ( !automatic_types_detection ) {

            return null;

        }

        final int T_INT = 0;

        final int T_FLOAT = 1;

        final int T_DOUBLE = 2;

        final int T_LONG = 3;

        final int T_URL = 4;

        final int T_DATE = 5;

        boolean possibleDataTypes[][] = null;

        Locale locale = null;

        int[] types = null;

        FileReader in = null;

        SimpleReader reader = null;

        String headers[] = null;

        SimpleDateFormat dateFormat = new SimpleDateFormat();

        try {

            in = new FileReader(this.getCSVParameters().getFile());

            reader = getSimpleReader(in);

            headers = reader.getHeader();

            if ( headers == null ) {

                headers = CSVStoreParameters.getHeaders(getCSVParameters());

            }

            types = new int[headers.length];

            possibleDataTypes = new boolean[headers.length][6];

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

                for ( int j = 0; j < 4; j++ ) {

                    possibleDataTypes[i][j] = true;

                }

            }

            locale = CSVStoreParameters.getLocale(getCSVParameters());

            if ( locale == null ) {

                locale = Locale.getDefault();

            }

            DataTypesManager typeManager = ToolsLocator.getDataTypesManager();

            CoercionWithLocale toDouble = (CoercionWithLocale) typeManager.getCoercion(DataTypes.DOUBLE);

            CoercionWithLocale toFloat = (CoercionWithLocale) typeManager.getCoercion(DataTypes.FLOAT);

            CoercionWithLocale toDate = (CoercionWithLocale) typeManager.getCoercion(DataTypes.DATE);

            Coercion toInt = typeManager.getCoercion(DataTypes.INT);

            Coercion toLong = typeManager.getCoercion(DataTypes.LONG);

            List<String> row = reader.read();

            while ( row != null ) {

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

                    Object rawvalue = row.get(i);

                    Object value = null;

                    if ( possibleDataTypes[i][T_DOUBLE] ) {

                        try {

                            value = toDouble.coerce(rawvalue, locale);

                            possibleDataTypes[i][T_DOUBLE] = true;

                        } catch (Exception ex) {

                            possibleDataTypes[i][T_DOUBLE] = false;

                        }

                    }

                    if ( possibleDataTypes[i][T_FLOAT] ) {

                        try {

                            value = toFloat.coerce(rawvalue, locale);

                            possibleDataTypes[i][T_FLOAT] = true;

                        } catch (Exception ex) {

                            possibleDataTypes[i][T_FLOAT] = false;

                        }

                    }

                    if ( possibleDataTypes[i][T_LONG] ) {

                        try {

                            value = toLong.coerce(rawvalue);

                            possibleDataTypes[i][T_LONG] = true;

                        } catch (Exception ex) {

                            possibleDataTypes[i][T_LONG] = false;

                        }

                    }

                    if ( possibleDataTypes[i][T_INT] ) {

                        try {

                            value = toInt.coerce(rawvalue);

                            possibleDataTypes[i][T_INT] = true;

                        } catch (Exception ex) {

                            possibleDataTypes[i][T_INT] = false;

                        }

                    }

                    if ( possibleDataTypes[i][T_DATE] ) {

                        try {

                            value = toDate.coerce(rawvalue, locale);

                            possibleDataTypes[i][T_DATE] = true;

                        } catch (Exception ex) {

                            possibleDataTypes[i][T_DATE] = false;

                        }

                    }

                    if ( possibleDataTypes[i][T_URL] ) {

                        try {

                            value = new URL((String) rawvalue);

                            possibleDataTypes[i][T_URL] = true;

                        } catch (Exception ex) {

                            possibleDataTypes[i][T_URL] = false;

                        }

                    }

                }

                row = reader.read();

            }

        } catch(Exception ex) {

            int lineno = 0;

            if( reader!=null ) {

                lineno = reader.getLine();

            }

            throw new RuntimeException("Problems reading file '"+getFullFileName()+"' near line "+lineno+".", ex);

        } finally {

            if ( reader != null ) {

                try {

                    reader.close();

                } catch (Exception ex) {

                    // Do nothing

                }

                reader = null;

            }

            if ( in != null ) {

                try {

                    in.close();

                } catch (Exception ex) {

                    // Do nothing

                }

                in = null;

            }

        }

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

            if ( possibleDataTypes[i][T_INT] ) {

                types[i] = DataTypes.INT;

                continue;

            }

            if ( possibleDataTypes[i][T_LONG] ) {

                types[i] = DataTypes.LONG;

                continue;

            }

            if ( possibleDataTypes[i][T_DOUBLE] ) {

                types[i] = DataTypes.DOUBLE;

                continue;

            }

            if ( possibleDataTypes[i][T_FLOAT] ) {

                types[i] = DataTypes.FLOAT;

                continue;

            }

            if ( possibleDataTypes[i][T_URL] ) {

                types[i] = DataTypes.URL;

                continue;

            }

            if ( possibleDataTypes[i][T_DATE] ) {

                types[i] = DataTypes.DATE;

                continue;

            }

            types[i] = DataTypes.STRING;

        }

        return types;

    }

}