/* (c) 2014 Open Source Geospatial Foundation - all rights reserved
* (c) 2001 - 2013 OpenPlans
* This code is licensed under the GPL 2.0 license, available at the root
* application directory.
*/
package org.geoserver.map.turbojpeg;
import it.geosolutions.imageio.plugins.turbojpeg.TurboJpegUtilities;
import java.awt.image.RenderedImage;
import java.io.IOException;
import java.io.OutputStream;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.geoserver.wms.MapProducerCapabilities;
import org.geoserver.wms.WMS;
import org.geoserver.wms.WMSMapContent;
import org.geoserver.wms.map.JPEGMapResponse;
import org.geoserver.wms.map.RenderedImageMapResponse;
/**
*
* @author Simone Giannecchini, GeoSolutions SAS
*
*/
public class TurboJPEGMapResponse extends RenderedImageMapResponse {
/** Logger. */
private final static Logger LOGGER = org.geotools.util.logging.Logging
.getLogger(TurboJPEGMapResponse.class.toString());
private static final boolean TURBO_JPEG_LIB_AVAILABLE = TurboJpegUtilities
.isTurboJpegAvailable();
private final static boolean DISABLE_TURBO = Boolean.getBoolean("disable.turbojpeg");
/**
* Default capabilities for JPEG .
*
* <p>
* <ol>
* <li>tiled = supported</li>
* <li>multipleValues = unsupported</li>
* <li>paletteSupported = false</li>
* <li>transparency = false</li>
* </ol>
*
* <p>
* We should soon support multipage tiff.
*/
private static MapProducerCapabilities CAPABILITIES = new MapProducerCapabilities(true, false,
false, false, null);
/** the only MIME type this map producer supports */
private static final String MIME_TYPE = "image/jpeg";
private final JPEGMapResponse fallback;
public TurboJPEGMapResponse(WMS wms) {
super(MIME_TYPE, wms);
fallback = new JPEGMapResponse(wms);
if(!TURBO_JPEG_LIB_AVAILABLE){
if(LOGGER.isLoggable(Level.WARNING)){
LOGGER.warning("The turbo jpeg encoder is not available, check the native libs installation");
}
} else {
if(LOGGER.isLoggable(Level.WARNING)){
LOGGER.warning("The turbo jpeg encoder is available for usage");
}
}
if(DISABLE_TURBO){
if(LOGGER.isLoggable(Level.WARNING)){
LOGGER.warning("The turbo jpeg encoder has been explicitly disabled");
}
}
}
@Override
public void formatImageOutputStream(RenderedImage image, OutputStream outStream,
WMSMapContent mapContent) throws IOException {
// FALLBACK
if (!TURBO_JPEG_LIB_AVAILABLE || DISABLE_TURBO) {
if (LOGGER.isLoggable(Level.INFO)) {
LOGGER.info("About to fallback on standard lib as libjpeg-turbi is not available");
}
fallback.formatImageOutputStream(image, outStream, mapContent);
return;
}
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.fine("About to write a JPEG image using libjpeg-turbo");
}
float quality = (100 - wms.getJpegCompression()) / 100.0f;
TurboJpegImageWorker iw=null;
try {
iw = new TurboJpegImageWorker(image);
iw.writeTurboJPEG(outStream, quality);
} finally {
try{
if(iw!=null){
iw.dispose();
}
} catch (Exception e) {
if(LOGGER.isLoggable(Level.FINEST)){
LOGGER.log(Level.FINEST,e.getLocalizedMessage(),e);
}
}
}
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.fine("Writing a JPEG done!!!");
}
}
@Override
public MapProducerCapabilities getCapabilities(String outputFormat) {
return CAPABILITIES;
}
}