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

import java.io.File;

import java.nio.charset.Charset;

import java.util.Iterator;

import java.util.LinkedHashSet;

import java.util.Map;

import java.util.Set;

import org.gvsig.fmap.dal.DataStoreParameters;

import org.gvsig.fmap.dal.DataTypes;

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

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

import org.gvsig.tools.ToolsLocator;

import org.gvsig.tools.dynobject.DelegatedDynObject;

import org.gvsig.tools.dynobject.DynClass;

import org.gvsig.tools.dynobject.DynField;

import org.gvsig.tools.dynobject.DynObjectManager;

import org.gvsig.tools.dynobject.DynObjectValueItem;

public class DBFStoreParameters extends AbstractDataParameters implements

                DataStoreParameters, FilesystemStoreParameters {

    public static final String DYNCLASS_NAME = "DBFStoreParameters";

    protected static final String FIELD_DBFFILENAME = "dbffilename";

        public static final String FIELD_ENCODING = "encoding";

        protected static DynClass DYNCLASS = null;

    protected static void registerDynClass() {

                DynObjectManager dynman = ToolsLocator.getDynObjectManager();

                DynClass dynClass;

                DynField field;

                if (DYNCLASS == null) {

                        dynClass = dynman.add(DYNCLASS_NAME);

                        field = dynClass.addDynField(FIELD_DBFFILENAME);

                        field.setTheTypeOfAvailableValues(DynField.SINGLE);

                        field.setDescription("DBF file name");

                        field.setType(DataTypes.STRING);

                        field.setMandatory(true);

                        DYNCLASS = dynClass;

                        field = dynClass.addDynField(FIELD_ENCODING);

                        field.setTheTypeOfAvailableValues(DynField.CHOICE);

                        field.setDescription("Encoding");

                        field.setType(DataTypes.STRING);

                        field.setMandatory(false);

                        field.setDefaultDynValue(null);

                        Set charsetSet = new LinkedHashSet(160);

                        charsetSet.add(new DynObjectValueItem(null, "{default}"));

                        charsetSet.add(new DynObjectValueItem("US-ASCII"));

                        charsetSet.add(new DynObjectValueItem("ISO-8859-1"));

                        charsetSet.add(new DynObjectValueItem("ISO-8859-15"));

                        charsetSet.add(new DynObjectValueItem("windows-1250"));

                        charsetSet.add(new DynObjectValueItem("windows-1252"));

                        charsetSet.add(new DynObjectValueItem("UTF-8"));

                        charsetSet.add(new DynObjectValueItem("UTF-16"));

                        charsetSet.add(new DynObjectValueItem("UTF-16BE"));

                        charsetSet.add(new DynObjectValueItem("UTF-16LE"));

                        Map charsets = Charset.availableCharsets();

                        Iterator iter = charsets.keySet().iterator();

                        while (iter.hasNext()){

                                charsetSet.add(new DynObjectValueItem(iter.next()));

                        }

                        field.setAvailableValues((DynObjectValueItem[]) charsetSet

                                        .toArray(new DynObjectValueItem[0]));

                        DYNCLASS = dynClass;

                }

        }

        public DBFStoreParameters() {

                super();

                initialize();

        }

        protected void initialize() {

                this.delegatedDynObject = (DelegatedDynObject) ToolsLocator

                                .getDynObjectManager()

                                .createDynObject(

                                                DBFStoreParameters.DYNCLASS);

        }

        public String getDataStoreName() {

                return DBFStoreProvider.NAME;

        }

        public boolean isValid() {

                return (this.getDBFFileName() != null);

        }

        public File getFile() {

                return new File(this.getDBFFileName());

        }

        public void setFile(File aFile) {

                this.setDBFFile(aFile);

        }

        public void setFile(String aFileName) {

                this.setDBFFileName(aFileName);

        }

        public String getDBFFileName() {

                return (String) this.getDynValue(FIELD_DBFFILENAME);

        }

        public File getDBFFile() {

                return new File((String) this.getDynValue(FIELD_DBFFILENAME));

        }

        public void setDBFFile(File aFile) {

                this.setDynValue(FIELD_DBFFILENAME, aFile.getPath());

        }

        public void setDBFFileName(String aFileName) {

                this.setDynValue(FIELD_DBFFILENAME, aFileName);

        }

        public String getDescription() {

                return DBFStoreProvider.DESCRIPTION;

        }

        public String getEncodingName() {

                return (String) getDynValue(FIELD_ENCODING);

        }

        public Charset getEncoding() {

                String name = getEncodingName();

                if (name == null) {

                        return null;

                }

                return Charset.forName(name);

        }

        public void setEncoding(String encoding) {

                this.setEncoding(Charset.forName(encoding));

        }

        public void setEncoding(Charset charset) {

                this.setDynValue(FIELD_ENCODING, charset.name());

        }

}