/*
*------------------------------------------------------------------------------
* Copyright (C) 2006-2016 University of Dundee & Open Microscopy Environment.
* All rights reserved.
*
*
* This program 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 2 of the License, or
* (at your option) any later version.
* This program 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 this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*------------------------------------------------------------------------------
*/
package training;
import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Map.Entry;
import javax.imageio.ImageIO;
import omero.api.RenderingEnginePrx;
import omero.api.ThumbnailStorePrx;
import omero.gateway.Gateway;
import omero.gateway.LoginCredentials;
import omero.gateway.SecurityContext;
import omero.gateway.facility.BrowseFacility;
import omero.log.SimpleLogger;
import omero.romio.PlaneDef;
import omero.gateway.model.ExperimenterData;
import omero.gateway.model.ImageData;
import omero.gateway.model.PixelsData;
/**
* Sample code showing how to start a rendering engine and how to interact
* with it.
*
* @author Jean-Marie Burel
* <a href="mailto:j.burel@dundee.ac.uk">j.burel@dundee.ac.uk</a>
* @since Beta4.3.2
*/
public class RenderImages
{
//The value used if the configuration file is not used. To edit*/
/** The server address.*/
private static String hostName = "serverName";
/** The username.*/
private static String userName = "userName";
/** The password.*/
private static String password = "password";
/** Information to edit.*/
private static long imageId = 1;
//end edit
private ImageData image;
private Gateway gateway;
private SecurityContext ctx;
/**
* start-code
*/
/**
* Loads the image.
* @param imageID The id of the image to load.
* @return See above.
*/
private ImageData loadImage(long imageID)
throws Exception
{
BrowseFacility browse = gateway.getFacility(BrowseFacility.class);
return browse.getImage(ctx, imageID);
}
// Initialize rendering engine
// ===========================
/**
* Creates a rendering engine.
*/
private void createRenderingEngine()
throws Exception
{
PixelsData pixels = image.getDefaultPixels();
long pixelsId = pixels.getId();
RenderingEnginePrx proxy = null;
try {
proxy = gateway.getRenderingService(ctx, pixelsId);
proxy.lookupPixels(pixelsId);
if (!(proxy.lookupRenderingDef(pixelsId))) {
proxy.resetDefaultSettings(true);
proxy.lookupRenderingDef(pixelsId);
}
proxy.load();
// Now can interact with the rendering engine.
proxy.setActive(0, Boolean.valueOf(false));
// to render the image uncompressed
PlaneDef pDef = new PlaneDef();
pDef.z = 0;
pDef.t = 0;
pDef.slice = omero.romio.XY.value;
//render the data uncompressed.
int[] uncompressed = proxy.renderAsPackedInt(pDef);
byte[] compressed = proxy.renderCompressed(pDef);
//Create a buffered image
ByteArrayInputStream stream = new ByteArrayInputStream(compressed);
BufferedImage image = ImageIO.read(stream);
System.err.println(image.getWidth()+" "+image.getHeight());
} catch (Exception e) {
throw new Exception("Cannot render image", e);
} finally {
if (proxy != null) proxy.close();
}
}
// Retrieve thumbnails
// ===================
/**
* Retrieves the thumbnails
*/
private void retrieveThumbnails()
throws Exception
{
ThumbnailStorePrx store = null;
try {
store = gateway.getThumbnailService(ctx);
PixelsData pixels = image.getDefaultPixels();
Map<Long, byte[]> map = store.getThumbnailByLongestSideSet(
omero.rtypes.rint(96), Arrays.asList(pixels.getId()));
Entry<Long, byte[]> entry;
Iterator<Entry<Long, byte[]>> i = map.entrySet().iterator();
ByteArrayInputStream stream;
//Create a buffered image to display
Map<Long, BufferedImage> results = new HashMap<Long, BufferedImage>();
while (i.hasNext()) {
entry = i.next();
stream = new ByteArrayInputStream(entry.getValue());
results.put(entry.getKey(), ImageIO.read(stream));
}
} catch (Exception e) {
throw new Exception("Cannot retrieve thumnails", e);
} finally {
if (store != null) store.close();
}
}
/**
* end-code
*/
/**
* Connects and invokes the various methods.
* @param args The login credentials.
* @param imageId The image id.
*/
RenderImages(String[] args, long imageId)
{
LoginCredentials cred = new LoginCredentials(args);
gateway = new Gateway(new SimpleLogger());
try {
ExperimenterData user = gateway.connect(cred);
ctx = new SecurityContext(user.getGroupId());
image = loadImage(imageId);
createRenderingEngine();
retrieveThumbnails();
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
gateway.disconnect(); // Be sure to disconnect
} catch (Exception e) {
e.printStackTrace();
}
}
}
/**
* Runs the script without configuration options.
*
* @param args The login credentials.
*/
public static void main(String[] args)
{
if (args == null || args.length == 0)
args = new String[] { "--omero.host=" + hostName,
"--omero.user=" + userName, "--omero.pass=" + password };
new RenderImages(args, imageId);
System.exit(0);
}
}