Add image inserter.

diff --git a/src/main/java/net/pterodactylus/sone/core/ImageInserter.java b/src/main/java/net/pterodactylus/sone/core/ImageInserter.java
new file mode 100644 (file)
index 0000000..1881902
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+++ b/src/main/java/net/pterodactylus/sone/core/ImageInserter.java
@@ -0,0 +1,104 @@
+/*
+ * Sone - ImageInserter.java - Copyright © 2011 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 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;
+import net.pterodactylus.util.validation.Validation;
+
+/**
+ * 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 core. */
+       private final Core core;
+
+       /** 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 core
+        *            The Sone core
+        * @param freenetInterface
+        *            The freenet interface
+        */
+       public ImageInserter(Core core, FreenetInterface freenetInterface) {
+               this.core = core;
+               this.freenetInterface = freenetInterface;
+       }
+
+       /**
+        * Inserts the given image. The {@link #core} will automatically added as
+        * {@link ImageInsertListener} to the created {@link InsertToken}.
+        *
+        * @param temporaryImage
+        *            The temporary image data
+        * @param image
+        *            The image
+        */
+       public void insertImage(TemporaryImage temporaryImage, Image image) {
+               Validation.begin().isNotNull("Temporary Image", temporaryImage).isNotNull("Image", image).check().isEqual("Image IDs", image.getId(), temporaryImage.getId()).check();
+               try {
+                       InsertToken insertToken = new InsertToken(image);
+                       insertTokens.put(image.getId(), insertToken);
+                       insertToken.addImageInsertListener(core);
+                       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);
+               if (insertToken == null) {
+                       return;
+               }
+               insertToken.cancel();
+               insertToken.removeImageInsertListener(core);
+       }
+
+}