1 files changed, 73 insertions, 0 deletions
diff --git a/src/org/jivesoftware/smackx/bytestreams/ibb/DataListener.java b/src/org/jivesoftware/smackx/bytestreams/ibb/DataListener.java
new file mode 100644
index 0000000..166c146
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+++ b/src/org/jivesoftware/smackx/bytestreams/ibb/DataListener.java
@@ -0,0 +1,73 @@
+/**
+ * All rights reserved. Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.jivesoftware.smackx.bytestreams.ibb;
+
+import org.jivesoftware.smack.PacketListener;
+import org.jivesoftware.smack.filter.AndFilter;
+import org.jivesoftware.smack.filter.PacketFilter;
+import org.jivesoftware.smack.filter.PacketTypeFilter;
+import org.jivesoftware.smack.packet.Packet;
+import org.jivesoftware.smackx.bytestreams.ibb.packet.Data;
+
+/**
+ * DataListener handles all In-Band Bytestream IQ stanzas containing a data
+ * packet extension that don't belong to an existing session.
+ * <p>
+ * If a data packet is received it looks if a stored In-Band Bytestream session
+ * exists. If no session with the given session ID exists an
+ * &lt;item-not-found/&gt; error is returned to the sender.
+ * <p>
+ * Data packets belonging to a running In-Band Bytestream session are processed
+ * by more specific listeners registered when an {@link InBandBytestreamSession}
+ * is created.
+ * 
+ * @author Henning Staib
+ */
+class DataListener implements PacketListener {
+
+    /* manager containing the listeners and the XMPP connection */
+    private final InBandBytestreamManager manager;
+
+    /* packet filter for all In-Band Bytestream data packets */
+    private final PacketFilter dataFilter = new AndFilter(
+                    new PacketTypeFilter(Data.class));
+
+    /**
+     * Constructor.
+     * 
+     * @param manager the In-Band Bytestream manager
+     */
+    public DataListener(InBandBytestreamManager manager) {
+        this.manager = manager;
+    }
+
+    public void processPacket(Packet packet) {
+        Data data = (Data) packet;
+        InBandBytestreamSession ibbSession = this.manager.getSessions().get(
+                        data.getDataPacketExtension().getSessionID());
+        if (ibbSession == null) {
+            this.manager.replyItemNotFoundPacket(data);
+        }
+    }
+
+    /**
+     * Returns the packet filter for In-Band Bytestream data packets.
+     * 
+     * @return the packet filter for In-Band Bytestream data packets
+     */
+    protected PacketFilter getFilter() {
+        return this.dataFilter;
+    }
+
+}