Application: gvSIG desktop » gvSIG raster

package org.gvsig.raster.lib.buffer.impl;

import java.io.File;

import org.cresques.cts.IProjection;

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

import org.gvsig.raster.lib.buffer.api.Band;

import org.gvsig.raster.lib.buffer.api.BandPageManager;

import org.gvsig.raster.lib.buffer.api.Buffer;

import org.gvsig.raster.lib.buffer.api.BufferManager;

import org.gvsig.raster.lib.buffer.api.NoData;

import org.gvsig.raster.lib.buffer.api.PageManager;

import org.gvsig.raster.lib.buffer.api.TiledPageManager;

import org.gvsig.raster.lib.buffer.api.exceptions.BufferException;

import org.gvsig.raster.lib.buffer.impl.exceptions.CreateBandTypeException;

import org.gvsig.raster.lib.buffer.impl.exceptions.CreateBufferException;

/**

 * @author fdiaz

 *

 */

public class DefaultBufferManager implements BufferManager {

    @Override

    public NoData createNoData(Number value, Number defaultValue) {

        NoData noData = new DefaultNoData(defaultValue);

        noData.setValue(value);

        return noData;

    }

    @Override

    public Band createBand(int dataType, int rows, int columns, NoData noData,

        PageManager pageManager) throws CreateBandTypeException {

        if (pageManager == null) {

            switch (dataType) {

            case BufferManager.TYPE_BYTE:

                return new DefaultBandByte(rows, columns, noData);

            case BufferManager.TYPE_USHORT:

            case BufferManager.TYPE_SHORT:

                return new DefaultBandShort(rows, columns, noData);

            case BufferManager.TYPE_INT:

                return new DefaultBandInt(rows, columns, noData);

            case BufferManager.TYPE_FLOAT:

                return new DefaultBandFloat(rows, columns, noData);

            case BufferManager.TYPE_DOUBLE:

                return new DefaultBandDouble(rows, columns, noData);

            default:

                throw new CreateBandTypeException(dataType);

            }

        } else if(pageManager instanceof BandPageManager ){

            switch (dataType) {

            case BufferManager.TYPE_BYTE:

                // FIXME:PaginatedBandByte....

                return new DefaultBandByte(rows, columns, noData);

            case BufferManager.TYPE_SHORT:

                // FIXME:

                return new DefaultBandShort(rows, columns, noData);

            case BufferManager.TYPE_INT:

                // FIXME:

                return new DefaultBandInt(rows, columns, noData);

            case BufferManager.TYPE_FLOAT:

                // FIXME:

                return new DefaultBandFloat(rows, columns, noData);

            case BufferManager.TYPE_DOUBLE:

                // FIXME:

                return new PaginatedBandDouble(rows, columns, noData, (BandPageManager) pageManager);

            default:

                throw new CreateBandTypeException(dataType);

            }

        } else if(pageManager instanceof TiledPageManager ){

            switch (dataType) {

            case BufferManager.TYPE_BYTE:

                // FIXME: TiledBandByte

                return new DefaultBandByte(rows, columns, noData);

            case BufferManager.TYPE_USHORT:

            case BufferManager.TYPE_SHORT:

                // FIXME:

                return new DefaultBandShort(rows, columns, noData);

            case BufferManager.TYPE_INT:

                // FIXME:

                return new DefaultBandInt(rows, columns, noData);

            case BufferManager.TYPE_FLOAT:

                // FIXME:

                return new DefaultBandFloat(rows, columns, noData);

            case BufferManager.TYPE_DOUBLE:

                // FIXME:

                return new DefaultBandDouble(rows, columns, noData);

            default:

                throw new CreateBandTypeException(dataType);

            }

        }

    }

    @Override

    public Buffer createBuffer(int rows, int columns, int[] bandDataTypes, IProjection projection)

        throws BufferException {

        return new DefaultBuffer(rows, columns, bandDataTypes, null, projection, null, null);

    }

    @Override

    public Buffer createBuffer(int rows, int columns, int[] bandDataTypes, NoData[] bandNoData,

        IProjection projection) throws CreateBufferException {

        return new DefaultBuffer(rows, columns, bandDataTypes, bandNoData, projection, null, null);

    }

    @Override

    public Buffer createBuffer(int rows, int columns, int[] bandDataTypes, NoData[] bandNoData,

        IProjection projection, Envelope envelope) throws BufferException {

        return new DefaultBuffer(rows, columns, bandDataTypes, bandNoData, projection, envelope,

            null);

    }

    @Override

    public Buffer createBuffer(int rows, int columns, int[] bandDataTypes, NoData[] bandNoData,

        IProjection projection, Envelope envelope, PageManager pageManager)

        throws BufferException {

        return new DefaultBuffer(rows, columns, bandDataTypes, bandNoData, projection, envelope,

            pageManager);

    }

    @Override

    public BandPageManager createSimpleBandPageManager(File file, int rows, int columns,

        int dataType) {

        // TODO Auto-generated method stub

        return null;

    }

    public int getDataTypeSize(int dataType){

        switch (dataType) {

        case BufferManager.TYPE_BYTE:

            return 1;

        case BufferManager.TYPE_SHORT:

            return 2;

        case BufferManager.TYPE_INT:

            return 4;

        case BufferManager.TYPE_FLOAT:

            return 4;

        case BufferManager.TYPE_DOUBLE:

            return 8;

        default:

            throw new IllegalArgumentException("Data Type "+dataType+" not supported.");

        }

    }

}