/*
* Sone - ImageInserter.java - Copyright © 2011–2013 David Roden
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
package net.pterodactylus.sone.core;
import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkNotNull;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.logging.Level;
import java.util.logging.Logger;
import net.pterodactylus.sone.core.FreenetInterface.InsertToken;
import net.pterodactylus.sone.data.Image;
import net.pterodactylus.sone.data.TemporaryImage;
import net.pterodactylus.util.logging.Logging;
/**
* The image inserter is responsible for inserting images using
* {@link FreenetInterface#insertImage(TemporaryImage, Image, InsertToken)} and
* also tracks running inserts, giving the possibility to abort a running
* insert.
*
* @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
*/
public class ImageInserter {
/** The logger. */
private static final Logger logger = Logging.getLogger(ImageInserter.class);
/** The freenet interface. */
private final FreenetInterface freenetInterface;
/** The tokens of running inserts. */
private final Map<String, InsertToken> insertTokens = Collections.synchronizedMap(new HashMap<String, InsertToken>());
/**
* Creates a new image inserter.
*
* @param freenetInterface
* The freenet interface
*/
public ImageInserter(FreenetInterface freenetInterface) {
this.freenetInterface = freenetInterface;
}
/**
* Inserts the given image.
*
* @param temporaryImage
* The temporary image data
* @param image
* The image
*/
public void insertImage(TemporaryImage temporaryImage, Image image) {
checkNotNull(temporaryImage, "temporaryImage must not be null");
checkNotNull(image, "image must not be null");
checkArgument(image.getId().equals(temporaryImage.getId()), "image IDs must match");
try {
InsertToken insertToken = freenetInterface.new InsertToken(image);
insertTokens.put(image.getId(), insertToken);
freenetInterface.insertImage(temporaryImage, image, insertToken);
} catch (SoneException se1) {
logger.log(Level.WARNING, "Could not insert image!", se1);
}
}
/**
* Cancels a running image insert. If no insert is running for the given
* image, nothing happens.
*
* @param image
* The image being inserted
*/
public void cancelImageInsert(Image image) {
InsertToken insertToken = insertTokens.remove(image.getId());
if (insertToken == null) {
return;
}
insertToken.cancel();
}
}