1 files changed, 48 insertions, 0 deletions
diff --git a/comp2511/blackout/FileTransferException.java b/comp2511/blackout/FileTransferException.java
new file mode 100644
index 0000000..e40c136
--- /dev/null
+++ b/comp2511/blackout/FileTransferException.java
@@ -0,0 +1,48 @@
+package unsw.blackout;
+
+/**
+ * Represents an exception that occured because of a file transfer.
+ */
+public class FileTransferException extends Exception {
+    public FileTransferException(String message) {
+        super(message);
+    }
+
+    /**
+     * Represents the case where the targeted file wasn't found on the source.
+     */
+    public static class VirtualFileNotFoundException extends FileTransferException {
+        public VirtualFileNotFoundException(String message) {
+            super(message);
+        }
+    }
+
+    /**
+     * Represents the case where the targeted file already existed on the target
+     * or was in the process of downloading.
+     */
+    public static class VirtualFileAlreadyExistsException extends FileTransferException {
+        public VirtualFileAlreadyExistsException(String message) {
+            super(message);
+        }
+    }
+
+    /**
+     * Represents the case when no more bandwidth exists for a satellite to
+     * be able to use for new devices.
+     */
+    public static class VirtualFileNoBandwidthException extends FileTransferException {
+        public VirtualFileNoBandwidthException(String message) {
+            super(message);
+        }
+    }
+
+    /**
+     * Occurs when a satellite runs out of space.
+     */
+    public static class VirtualFileNoStorageSpaceException extends FileTransferException {
+        public VirtualFileNoStorageSpaceException(String message) {
+            super(message);
+        }
+    }
+}