1 files changed, 46 insertions, 0 deletions
diff --git a/src/main/java/de/thedevstack/conversationsplus/xmpp/filetransfer/http/upload/HttpUploadRequestSlotPacketGenerator.java b/src/main/java/de/thedevstack/conversationsplus/xmpp/filetransfer/http/upload/HttpUploadRequestSlotPacketGenerator.java
new file mode 100644
index 00000000..915cf9a7
--- /dev/null
+++ b/src/main/java/de/thedevstack/conversationsplus/xmpp/filetransfer/http/upload/HttpUploadRequestSlotPacketGenerator.java
@@ -0,0 +1,46 @@
+package de.thedevstack.conversationsplus.xmpp.filetransfer.http.upload;
+
+import eu.siacs.conversations.xmpp.jid.Jid;
+import eu.siacs.conversations.xmpp.stanzas.IqPacket;
+
+/**
+ * Generates the IQ Packets for requesting a http upload slot
+ * as defined in XEP-0363.
+ * @see <a href="http://xmpp.org/extensions/xep-0363.html">http://xmpp.org/extensions/xep-0363.html</a>
+ */
+public final class HttpUploadRequestSlotPacketGenerator {
+    /**
+     * Generates the IqPacket to request a http upload slot.
+     * The attributes from and id are not set in here - this is added while sending the packet.
+     * <pre>
+     * <iq from='romeo@montague.tld/garden'
+     *     id='step_03'
+     *     to='upload.montague.tld'
+     *     type='get'>
+     *   <request xmlns='urn:xmpp:http:upload'>
+     *     <filename>my_juliet.png</filename>
+     *     <size>23456</size>
+     *     <content-type>image/jpeg</content-type>
+     *   </request>
+     * </iq>
+     * </pre>
+     * @param host the jid of the host to request a slot from
+     * @param filename the filename of the file which will be transferred
+     * @param filesize the filesize of the file which will be transferred
+     * @param mime the mime type of the file which will be transferred - <code>optional</code> and therefore nullable
+     * @return the IqPacket
+     */
+    public static IqPacket generate(Jid host, String filename, long filesize, String mime) {
+        SlotRequestPacket packet = new SlotRequestPacket(filename, filesize);
+        packet.setTo(host);
+        packet.setMime((mime == null) ? HttpUpload.DEFAULT_MIME_TYPE : mime);
+        return packet;
+    }
+
+    /**
+     * Utility class - avoid instantiation
+     */
+    private HttpUploadRequestSlotPacketGenerator() {
+        // Helper class - avoid instantiation
+    }
+}