Added encode/decode for PubRel message

netty_parser/src/main/java/org/dna/mqtt/moquette/parser/netty/MQTTDecoder.java

@@ -31,6 +31,7 @@ public class MQTTDecoder extends ByteToMessageDecoder {
        m_decoderMap.put(AbstractMessage.UNSUBACK, new UnsubAckDecoder());
        m_decoderMap.put(AbstractMessage.PUBCOMP, new PubCompDecoder());
        m_decoderMap.put(AbstractMessage.PUBREC, new PubRecDecoder());
+       m_decoderMap.put(AbstractMessage.PUBREL, new PubRelDecoder());
     }
 
     @Override

netty_parser/src/main/java/org/dna/mqtt/moquette/parser/netty/MQTTEncoder.java

@@ -30,6 +30,7 @@ public class MQTTEncoder extends MessageToByteEncoder<AbstractMessage> {
        m_encoderMap.put(AbstractMessage.UNSUBACK, new UnsubAckEncoder());
        m_encoderMap.put(AbstractMessage.PUBCOMP, new PubCompEncoder());
        m_encoderMap.put(AbstractMessage.PUBREC, new PubRecEncoder());
+       m_encoderMap.put(AbstractMessage.PUBREL, new PubRelEncoder());
     }
     
     @Override

netty_parser/src/main/java/org/dna/mqtt/moquette/parser/netty/PubRelDecoder.java

@@ -0,0 +1,18 @@
+package org.dna.mqtt.moquette.parser.netty;
+
+import org.dna.mqtt.moquette.proto.messages.MessageIDMessage;
+import org.dna.mqtt.moquette.proto.messages.PubRelMessage;
+
+/**
+ *
+ * @author andrea
+ */
+class PubRelDecoder extends MessageIDDecoder {
+
+    @Override
+    protected MessageIDMessage createMessage() {
+        return new PubRelMessage();
+    }
+
+}
+

netty_parser/src/main/java/org/dna/mqtt/moquette/parser/netty/PubRelEncoder.java

@@ -0,0 +1,20 @@
+package org.dna.mqtt.moquette.parser.netty;
+
+import io.netty.buffer.ByteBuf;
+import io.netty.channel.ChannelHandlerContext;
+import org.dna.mqtt.moquette.proto.messages.AbstractMessage;
+import org.dna.mqtt.moquette.proto.messages.PubRelMessage;
+
+/**
+ *
+ * @author andrea
+ */
+class PubRelEncoder extends DemuxEncoder<PubRelMessage> {
+
+    @Override
+    protected void encode(ChannelHandlerContext chc, PubRelMessage msg, ByteBuf out) {
+        out.writeByte(AbstractMessage.PUBREL << 4);
+        out.writeBytes(Utils.encodeRemainingLength(2));
+        out.writeShort(msg.getMessageID());
+    }
+}