Application: gvSIG desktop

package org.gvsig.fmap.data.feature.db.jdbc.postgresqlbin;

import java.math.BigDecimal;

import java.nio.ByteBuffer;

import java.sql.Date;

import java.sql.ResultSet;

import java.sql.SQLException;

import java.sql.Timestamp;

import java.sql.Types;

import org.gvsig.fmap.data.exceptions.DataException;

import org.gvsig.fmap.data.exceptions.ReadException;

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

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

import org.gvsig.fmap.data.feature.FeatureReference;

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

import org.gvsig.fmap.data.feature.db.DBAttributeDescriptor;

import org.gvsig.fmap.data.feature.db.DBFeatureType;

import org.gvsig.fmap.data.feature.db.jdbc.JDBCFeature;

import org.gvsig.fmap.data.feature.db.jdbc.JDBCStore;

import org.gvsig.fmap.data.feature.exceptions.IsNotFeatureSettingException;

public class PostgresqlBinFeature extends JDBCFeature{

        /**

         *

         */

        private static final long serialVersionUID = -1215877232314904198L;

        PostgresqlBinFeature(FeatureType featureType, JDBCStore store, ResultSet rs) throws ReadException {

                super(featureType, store, rs);

        }

        public FeatureReference getID() {

                return new PostgresqlBinFeatureID(this.store,featureKey);

        }

        protected void loading() {

                // TODO Auto-generated method stub

                super.loading();

        }

        protected void stopLoading() {

                // TODO Auto-generated method stub

                super.stopLoading();

        }

        /* (non-Javadoc)

         * @see org.gvsig.fmap.data.feature.db.jdbc.JDBCFeature#loadValueFromResulset(java.sql.ResultSet, org.gvsig.fmap.data.feature.FeatureAttributeDescriptor)

         */

        protected void loadValueFromResulset(ResultSet rs, FeatureAttributeDescriptor attr) throws ReadException {

                String name = attr.getName();

                Object value = null;

                try {

                        value = getFieldValueFromBinaryCursor(rs, (DBAttributeDescriptor)attr);

                        if (attr.getDataType().equals(FeatureAttributeDescriptor.GEOMETRY)) {

                                this.setGeometry(name,value);

                        } else {

                                this.setAttribute(name, value);

                        }

                } catch (java.sql.SQLException e) {

                        throw new ReadException("CreateFeature",e);

                } catch (IsNotFeatureSettingException e) {

                        throw new ReadException(this.store.getName(),e);

                }

        }

        private Object getFieldValueFromBinaryCursor(ResultSet aRs, DBAttributeDescriptor attrDescriptor) throws java.sql.SQLException {

                int fieldId = attrDescriptor.ordinal();

                int sqlType = attrDescriptor.getSqlType();

                byte[] byteBuf = aRs.getBytes(fieldId+1);

                if (byteBuf == null) {

                        return null;

                } else {

                        ByteBuffer buf = ByteBuffer.wrap(byteBuf);

                        if (attrDescriptor.getDataType().equals(FeatureAttributeDescriptor.GEOMETRY)){

                                if (attrDescriptor.getDataType() == FeatureAttributeDescriptor.GEOMETRY){

                                        if (byteBuf == null) {

                                                return null;

                                        }

//                                        return wkbParser.parse(byteBuf);

                                        return null;

                                }

                        }

                        switch (sqlType) {

                        case Types.VARCHAR:

                                //FIXME Error

                                return aRs.getString(fieldId);

//                                return new String(buf.toString());

                        case Types.FLOAT:

                                return new Float(buf.getFloat());

                        case Types.DOUBLE:

                                return new Double(buf.getDouble());

                        case Types.REAL:

                                return new Float(buf.getFloat());

                        case Types.INTEGER:

                                return new Integer(buf.getInt());

                        case Types.BIGINT:

                                return new Long(buf.getLong());

                        case Types.BIT:

                                return new Boolean(byteBuf[0] == 1);

                        case Types.BOOLEAN:

                                return new Boolean(aRs.getBoolean(fieldId));

                        case Types.DATE:

                                long daysAfter2000 = buf.getInt() + 1;

                                long msecs = daysAfter2000*24*60*60*1000;

                                long real_msecs_date1 = (long) (XTypes.NUM_msSecs2000 + msecs);

                                Date realDate1 = new Date(real_msecs_date1);

                                return realDate1;

                        case Types.TIME:

                                // TODO:

                                // throw new RuntimeException("TIME type not implemented yet");

                                return "NOT IMPLEMENTED YET";

                        case Types.TIMESTAMP:

                                double segsReferredTo2000 = buf.getDouble();

                                long real_msecs = (long) (XTypes.NUM_msSecs2000 + segsReferredTo2000*1000);

                                Timestamp valTimeStamp = new Timestamp(real_msecs);

                                return valTimeStamp;

                        case Types.NUMERIC:

                                // System.out.println(metaData.getColumnName(fieldId) + " "

                                // + metaData.getColumnClassName(fieldId));

                                short ndigits = buf.getShort();

                                short weight = buf.getShort();

                                short sign = buf.getShort();

                                short dscale = buf.getShort();

                                String strAux;

                                if (sign == 0) {

                                        strAux = "+";

                                } else {

                                        strAux = "-";

                                }

                                for (int iDigit = 0; iDigit < ndigits; iDigit++) {

                                        short digit = buf.getShort();

                                        strAux = strAux + digit;

                                        if (iDigit == weight) {

                                                strAux = strAux + ".";

                                        }

                                }

                                strAux = strAux + "0";

                                BigDecimal dec;

                                dec = new BigDecimal(strAux);

                                // System.out.println(ndigits + "_" + weight + "_" + dscale

                                // + "_" + strAux);

                                // System.out.println(strAux + " Big= " + dec);

                                return new Double(dec.doubleValue());

                        default:

                                //TODO ???

                                throw new RuntimeException("Unsuported Type");

                        }

                }

        }

        protected Object[] getPkFromResulsetBinary(ResultSet rs, DBFeatureType featureType) throws SQLException {

                String[] fieldsId = featureType.getFieldsId();

                Object[] result = new Object[fieldsId.length];

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

                        result[i] = getFieldValueFromBinaryCursor(

                                        rs,

                                        (DBAttributeDescriptor)featureType.get(fieldsId[i])

                                );

                }

                return result;

        }

        /* (non-Javadoc)

         * @see org.gvsig.fmap.data.feature.AbstractFeature#cloneFeature()

         */

        protected Feature cloneFeature() throws DataException {

                // TODO Auto-generated method stub

                return null;

        }

}