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.FileInputStream;

import java.io.FileNotFoundException;

import java.io.FileReader;

import java.io.IOException;

import java.io.InputStreamReader;

import java.net.URI;

import java.net.URL;

import java.nio.charset.Charset;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.Iterator;

import java.util.List;

import java.util.Locale;

import java.util.Map;

import org.apache.commons.io.FilenameUtils;

import org.apache.commons.io.IOUtils;

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.GeometryUtils;

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.DataType;

import org.gvsig.tools.dataTypes.DataTypesManager;

import org.gvsig.tools.dataTypes.Coercion;

import org.gvsig.tools.dispose.DisposableIterator;

import org.gvsig.tools.dynobject.Tags;

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.prefs.CsvPreference;

import org.gvsig.tools.dataTypes.CoercionContext;

@SuppressWarnings("UseSpecificCatch")

public class CSVStoreProvider extends AbstractMemoryStoreProvider implements

        ResourceConsumer {

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

    public static final String NAME = DataStore.CSV_PROVIDER_NAME;

    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 final SimpleTaskStatus taskStatus;

    private final CSVFeatureWriter writer;

    public CSVStoreProvider(CSVStoreParameters parameters,

            DataStoreProviderServices storeServices) throws InitializeException {

        super(

                parameters,

                storeServices,

                FileHelper.newMetadataContainer(METADATA_DEFINITION_NAME)

        );

        this.writer = new CSVFeatureWriter();

        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();

    }

    @Override

    public String getProviderName() {

        return NAME;

    }

    @Override

    public boolean allowWrite() {

        return true;

    }

    private String getFullFileName() {

        // Usar solo para mostrar mensajes en el logger.

        String s;

        try {

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

        } catch (Exception e2) {

            s = "(unknow)";

        }

        return s;

    }

    @Override

    public void open() throws OpenException {

        if (this.data != null) {

            return;

        }

        this.data = new ArrayList<>();

        resource.setData(new HashMap());

        counterNewsOIDs = 0;

        try {

            loadFeatures();

        } catch (RuntimeException e) {

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

            throw e;

        } catch (Exception e) {

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

            throw new RuntimeException(e);

        }

    }

    @Override

    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);

        }

    }

    @Override

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

        try {

            this.taskStatus.add();

            taskStatus.message("_preparing");

            this.getResource().closeRequest();

            getResource().execute(new ResourceAction() {

                @Override

                public Object run() throws Exception {

                    FeatureSet features = null;

                    DisposableIterator it = null;

                    try {

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

                        features

                                = getStoreServices().getFeatureStore()

                                        .getFeatureSet();

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

                        FeatureType ftype = getStoreServices().getDefaultFeatureType();

                        writer.initialize(getCSVParameters(), file, ftype, getCSVPreferences());

                        writer.beginAppend();

                        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;

                }

            });

            this.taskStatus.terminate();

        } catch (Exception e) {

            this.taskStatus.abort();

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

        } finally {

            this.taskStatus.remove();

        }

    }

    private CsvPreference getCSVPreferences() {

        CSVReader reader = new CSVReader(getCSVParameters());

        return reader.getCSVPreferences();

    }

    @Override

    public boolean closeResourceRequested(ResourceProvider resource) {

        return true;

    }

    @Override

    public int getOIDType() {

        return DataTypes.LONG;

    }

    @Override

    public boolean supportsAppendMode() {

        return true;

    }

    @Override

    public void append(final FeatureProvider featureProvider) {

        //todo

        getResource().execute(new ResourceAction() {

            @Override

            public Object run() throws Exception {

                //writer.append(getStoreServices().createFeature(featureProvider));

                writer.add(featureProvider);

                return null;

            }

        });

    }

    @Override

    public void beginAppend() throws DataException {

        this.close();

        getResource().execute(new ResourceAction() {

            public Object run() throws Exception {

                writer.initialize(

                        getCSVParameters(),

                        getCSVParameters().getFile(),

                        getFeatureStore().getDefaultFeatureType(),

                        getCSVPreferences()

                );

                writer.beginAppend();

                return null;

            }

        });

    }

    @Override

    public void endAppend() {

        try {

            getResource().execute(new ResourceAction() {

                public Object run() throws Exception {

                    writer.end();

                    resource.notifyChanges(); //resourcesNotifyChanges();

                    counterNewsOIDs = -1;

                    return null;

                }

            });

            writer.end();

        } catch (PerformEditingException ex) {

            LOGGER.warn("Not been able to end append '" + this.getFullName() + "'.", ex);

        }

    }

    public void saveToState(PersistentState state) throws PersistenceException {

        throw new NotYetImplemented();

    }

    public void loadFromState(PersistentState state) throws PersistenceException {

        throw new NotYetImplemented();

    }

    @Override

    public Object createNewOID() {

        return counterNewsOIDs++;

    }

    protected void initializeFeatureTypes() throws InitializeException {

        try {

            this.open();

        } catch (OpenException e) {

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

        }

    }

    @Override

    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() {

                @Override

                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;

    }

    @Override

    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);

    }

    @Override

    public void resourceChanged(ResourceProvider resource) {

        this.getStoreServices().notifyChange(

                DataStoreNotification.RESOURCE_CHANGED,

                resource);

    }

    @Override

    public Object getSourceId() {

        return this.getCSVParameters().getFile();

    }

    @Override

    public String getName() {

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

        return FilenameUtils.getBaseName(name);

    }

    @Override

    public String getFullName() {

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

    }

    @Override

    public ResourceProvider getResource() {

        return resource;

    }

    private boolean isEmpty(String s) {

        if (s == null) {

            return true;

        }

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

    }

    private void init(CSVStoreParameters parameters, DataStoreProviderServices storeServices) {

        throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.

    }

    private class FieldTypeParser {

        public String name = null;

        public int type = DataTypes.STRING;

        public int size = 0;

        public int geomType = Geometry.TYPES.GEOMETRY;

        public int geomSubtype = Geometry.SUBTYPES.GEOM2D;

        public Map<String,String> tags = new HashMap<>();

        public Map<String,String> assignments = new HashMap<>();

        private String typename = "string";

        FieldTypeParser() {

        }

        public void clear() {

            this.name = null;

            this.type = DataTypes.STRING;

            this.size = 0;

            this.tags = new HashMap<>();

            this.assignments = new HashMap<>();

        }

        public void copyFrom(FieldTypeParser other) {

            this.name = other.name;

            this.type = other.type;

            this.size = other.size;

            this.tags = new HashMap<>();

            this.tags.putAll(other.tags);

            this.assignments = new HashMap<>();

            this.assignments.putAll(other.assignments);

        }

        private int getType(String value) {

            DataTypesManager dataTypesManager = ToolsLocator.getDataTypesManager();

            return dataTypesManager.getType(typename);

        }

        private String[] split(String value, String separators) {

            int firstSeparatorPosition = 1000000;

            Character sep = null;

            for (char ch : separators.toCharArray()) {

                int pos = value.indexOf(ch);

                if( pos>0 && pos<firstSeparatorPosition ) {

                    sep = ch;

                    firstSeparatorPosition = pos;

                }

            }

            if( sep == null ) {

                return new String[] { value };

            }

            return value.split("["+sep+"]");

        }

        @SuppressWarnings("UseSpecificCatch")

        public boolean parse(String value) {

            String[] args;

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

                args = value.split("__");

            } else {

                args = split(value, ":/#@!;-");

                if( args.length == 1 ) {

                    this.name = value;

                    return true;

                }

            }

            int n = 0;

            this.name = StringUtils.trim(args[n++]);

            if( n >= args.length ) {

                return true;

            }

            this.typename = StringUtils.trim(args[n++]);

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

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

                this.geomType = GeometryUtils.getGeometryType(this.typename);

                if( this.geomType==Geometry.TYPES.UNKNOWN )  {

                    this.type = DataTypes.STRING;

                    LOGGER.info("Type '" + this.typename + "' not valid for attribute '" + value + "' in '"+getProviderName()+"' file '" + getFullFileName() + "'.");

                } else {

                    this.typename = "GEOMETRY";

                    this.type = DataTypes.GEOMETRY;

                }

            }

            this.size = 0;

            while (n < args.length) {

                String option = StringUtils.trim(args[n++].toLowerCase());

                switch (option) {

                    case "size":

                        try {

                            this.size = Integer.parseInt(args[n++]);

                        } catch (Exception ex) {

                            LOGGER.warn("Ignore incorrect field size for field " + value + " in '"+getProviderName()+"' file '" + getFullFileName() + "'.", ex);

                        }

                        break;

                    case "tag": {

                            String x = StringUtils.trim(args[n++]);

                            int pos = x.indexOf("=");

                            if( pos < 0 ) {

                                this.tags.put(x, null);

                            } else {

                                this.tags.put(

                                        StringUtils.trim(StringUtils.substring(x, 0, pos)),

                                        StringUtils.trim(StringUtils.substring(x, pos+1))

                                );

                            }

                            break;

                        }

                    case "set": {

                            String x = StringUtils.trim(args[n++]);

                            int pos = x.indexOf("=");

                            if( pos < 0 ) {

                                this.assignments.put(x, null);

                            } else {

                                this.assignments.put(

                                        StringUtils.trim(StringUtils.substring(x, 0, pos)),

                                        StringUtils.trim(StringUtils.substring(x, pos+1))

                                );

                            }

                            break;

                        }

                    default:

                        if( StringUtils.isNumeric(option) && this.size == 0 ) {

                          try {

                              this.size = Integer.parseInt(option);

                          } catch (Exception ex) {

                              LOGGER.warn("Ignore incorrect field size for field " + value + " in '"+getProviderName()+"' file '" + getFullFileName() + "'.", ex);

                          }

                          break;

                        }

                        LOGGER.warn("Illegal argumente '"+option+"' for field '"+this.name+"' in '"+getProviderName()+"' file '" + getFullFileName() + "' ("+value+").");

                }

            }

            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);

                FieldTypeParser parser = new FieldTypeParser();

                for (String param_type : param_types) {

                    parser.clear();

                    parser.parse(param_type);

                    for (FieldTypeParser fieldType : fieldTypes) {

                        if (StringUtils.equalsIgnoreCase(fieldType.name, parser.name)) {

                            fieldType.copyFrom(parser);

                            break;

                        }

                    }

                }

            }

        }

        //

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

        //

        for (FieldTypeParser fieldType : fieldTypes) {

            EditableFeatureAttributeDescriptor fad = fType.add(fieldType.name, fieldType.type);

            fad.setSize(fieldType.size);

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

                fad.setGeometryType(fieldType.geomType, fieldType.geomSubtype);

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

                    fType.setDefaultGeometryAttributeName(fieldType.name);

                }

            }

            for (Map.Entry<String, String> entry : fieldType.assignments.entrySet()) {

                try {

                    switch(entry.getKey().toLowerCase()) {

                        case "expression":

                            // Los campos calculados los procesamos en una segunda

                            // pasada, cuando ya estan definidos el resto de los campos

                            // ya que pueden requerir campos que aun no se han definido.

                            break;

                        default:

                            fad.set(entry.getKey(), entry.getValue());

                    }

                } catch (Exception ex) {

                    LOGGER.warn("Can't set property '"+entry.getKey()+"' of '"+fad.getName()+"'.", ex);

                }

            }

            Tags tags = fad.getTags();

            for (Map.Entry<String, String> entry : fieldType.tags.entrySet()) {

                tags.set(entry.getKey(), entry.getValue());

            }

        }

        // Processamos ahora los campos calculados

        for (FieldTypeParser fieldType : fieldTypes) {

            EditableFeatureAttributeDescriptor fad = fType.getEditableAttributeDescriptor(fieldType.name);

            for (Map.Entry<String, String> entry : fieldType.assignments.entrySet()) {

                try {

                    switch(entry.getKey().toLowerCase()) {

                        case "expression":

                            fad.set(entry.getKey(), entry.getValue());

                            break;

                    }

                } catch (Exception ex) {

                    LOGGER.warn("Can't set property '"+entry.getKey()+"' in '"+fad.getName()+"' of '"+getFullFileName()+"'.", ex);

                }

            }

        }

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

        if ( pointDimensionNames != null ) {

            PointAttributeEmulator emulator = new PointAttributeEmulator(pointDimensionNames);

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

            GeometryManager geommgr = GeometryLocator.getGeometryManager();

            GeometryType gt;

            try {

                if ( emulator.fieldNames != null && emulator.fieldNames.length <= 2 ) {

                        gt = geommgr.getGeometryType(Geometry.TYPES.GEOMETRY, Geometry.SUBTYPES.GEOM2D);

                } else {

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

                }

                attr.setGeometryType(gt);

            } catch (Exception e) {

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

            }

        }

        String geometry_column = CSVStoreParameters.getGeometryColumn(this.getParameters());

        if (!StringUtils.isEmpty(geometry_column)) {

            EditableFeatureAttributeDescriptor attr = (EditableFeatureAttributeDescriptor) fType.get(geometry_column);

            if (attr != null && attr.getType() != DataTypes.GEOMETRY) {

                attr.setDataType(DataTypes.GEOMETRY);

                GeometryManager geommgr = GeometryLocator.getGeometryManager();

                GeometryType gt;

                try {

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

                    attr.setGeometryType(gt);

                } catch (Exception e) {

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

                }

                fType.setDefaultGeometryAttributeName(geometry_column);

            }

        }

        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);

        }

        @Override

        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);

                double y = ((Double) valueY);

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

                if (this.fieldNames.length > 2) {

                    double z = ((Double) valueZ);

                    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));

            }

        }

        @Override

        public boolean allowSetting() {

            return true;

        }

        @Override

        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);

        }

        @Override

        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;

            }

        }

        @Override

        public String getName() {

            return "ToPointEvaluaror";

        }

    }

    private SimpleReader getSimpleReader(InputStreamReader in) {

        SimpleReader reader;

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

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

        } else {

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

        }

        return reader;

    }

    private String getFixedHeader(int column) {

        char[] header = new char[3];

        String s = String.format("%03d", column);

        header[0] = (char) (s.charAt(0) + 17);

        header[1] = (char) (s.charAt(1) + 17);

        header[2] = (char) (s.charAt(2) + 17);

        return String.valueOf(header);