eu.limetri.client.mapviewer.swing.impl.DefaultTileServiceSwing Maven / Gradle / Ivy

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/**
 *  Copyright (C) 2008-2013 LimeTri. All rights reserved.
 *
 *  AgroSense 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.
 *
 *  There are special exceptions to the terms and conditions of the GPLv3 as it
 *  is applied to this software, see the FLOSS License Exception
 *  .
 *
 *  AgroSense 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
 *  AgroSense. If not, see .
 */
package eu.limetri.client.mapviewer.swing.impl;

import java.awt.image.BufferedImage;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.logging.Level;
import java.util.logging.Logger;

import javax.imageio.ImageIO;

import org.openide.filesystems.FileObject;

import eu.limetri.client.mapviewer.data.cache.TileCacheInfo;
import eu.limetri.client.mapviewer.data.cache.spi.AbstractTileService;

/**
 * Default implementation of {@link AbstractTileService} for Swing
 *
 * @author Frantisek Post
 *
 */
public class DefaultTileServiceSwing extends AbstractTileService implements TileServiceSwing, WritableTileServiceSwing {

    private static final Logger LOG = Logger.getLogger(DefaultTileServiceSwing.class.getName());

    @Override
    public BufferedImage readImage(TileCacheInfo tileCacheInfo) {
        BufferedImage image = null;
        FileObject tileFile = getTileFile(tileCacheInfo, false);
        if (tileFile != null) {
            try (InputStream stream = tileFile.getInputStream()) {
                image = ImageIO.read(stream);
                readCallback(tileFile);
            } catch (IOException ex) {
                LOG.log(Level.FINE, "Error reading tile image from file ", ex);
            }
        }
        return image;
    }

    @Override
    public void writeImage(TileCacheInfo tileCacheInfo, BufferedImage image) {

        FileObject tileFile = getTileFile(tileCacheInfo, true);

        if (tileFile != null && !tileFile.isLocked()) {
            try (OutputStream stream = tileFile.getOutputStream()) {
                ImageIO.write(image, "png", stream);
                writeCallback();
            } catch (IOException ex) {
                LOG.log(Level.FINE, "Problem writing tile image to file", ex);
            }
        } else {
            LOG.fine("Failed to write image for tile");
        }
    }

}