Create a copy of floodlight source files on which we can apply our changes.
Move imported floodlight from src/ext to import/ to better reflect its purpose (clean imported files).
diff --git a/lib/gen-java/net/floodlightcontroller/packetstreamer/thrift/Packet.java b/lib/gen-java/net/floodlightcontroller/packetstreamer/thrift/Packet.java
new file mode 100644
index 0000000..65c140f
--- /dev/null
+++ b/lib/gen-java/net/floodlightcontroller/packetstreamer/thrift/Packet.java
@@ -0,0 +1,525 @@
+/**
+ * Autogenerated by Thrift Compiler (0.7.0)
+ *
+ * DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING
+ */
+package net.floodlightcontroller.packetstreamer.thrift;
+
+import java.util.List;
+import java.util.ArrayList;
+import java.util.Map;
+import java.util.HashMap;
+import java.util.EnumMap;
+import java.util.Set;
+import java.util.HashSet;
+import java.util.EnumSet;
+import java.util.Collections;
+import java.util.BitSet;
+import java.nio.ByteBuffer;
+import java.util.Arrays;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+@SuppressWarnings("all") public class Packet implements org.apache.thrift.TBase<Packet, Packet._Fields>, java.io.Serializable, Cloneable {
+  private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("Packet");
+
+  private static final org.apache.thrift.protocol.TField MESSAGE_TYPE_FIELD_DESC = new org.apache.thrift.protocol.TField("messageType", org.apache.thrift.protocol.TType.I32, (short)1);
+  private static final org.apache.thrift.protocol.TField SW_PORT_TUPLE_FIELD_DESC = new org.apache.thrift.protocol.TField("swPortTuple", org.apache.thrift.protocol.TType.STRUCT, (short)2);
+  private static final org.apache.thrift.protocol.TField DATA_FIELD_DESC = new org.apache.thrift.protocol.TField("data", org.apache.thrift.protocol.TType.STRING, (short)3);
+
+  /**
+   * 
+   * @see OFMessageType
+   */
+  public OFMessageType messageType; // required
+  public SwitchPortTuple swPortTuple; // required
+  public ByteBuffer data; // required
+
+  /** The set of fields this struct contains, along with convenience methods for finding and manipulating them. */
+  public enum _Fields implements org.apache.thrift.TFieldIdEnum {
+    /**
+     * 
+     * @see OFMessageType
+     */
+    MESSAGE_TYPE((short)1, "messageType"),
+    SW_PORT_TUPLE((short)2, "swPortTuple"),
+    DATA((short)3, "data");
+
+    private static final Map<String, _Fields> byName = new HashMap<String, _Fields>();
+
+    static {
+      for (_Fields field : EnumSet.allOf(_Fields.class)) {
+        byName.put(field.getFieldName(), field);
+      }
+    }
+
+    /**
+     * Find the _Fields constant that matches fieldId, or null if its not found.
+     */
+    public static _Fields findByThriftId(int fieldId) {
+      switch(fieldId) {
+        case 1: // MESSAGE_TYPE
+          return MESSAGE_TYPE;
+        case 2: // SW_PORT_TUPLE
+          return SW_PORT_TUPLE;
+        case 3: // DATA
+          return DATA;
+        default:
+          return null;
+      }
+    }
+
+    /**
+     * Find the _Fields constant that matches fieldId, throwing an exception
+     * if it is not found.
+     */
+    public static _Fields findByThriftIdOrThrow(int fieldId) {
+      _Fields fields = findByThriftId(fieldId);
+      if (fields == null) throw new IllegalArgumentException("Field " + fieldId + " doesn't exist!");
+      return fields;
+    }
+
+    /**
+     * Find the _Fields constant that matches name, or null if its not found.
+     */
+    public static _Fields findByName(String name) {
+      return byName.get(name);
+    }
+
+    private final short _thriftId;
+    private final String _fieldName;
+
+    _Fields(short thriftId, String fieldName) {
+      _thriftId = thriftId;
+      _fieldName = fieldName;
+    }
+
+    public short getThriftFieldId() {
+      return _thriftId;
+    }
+
+    public String getFieldName() {
+      return _fieldName;
+    }
+  }
+
+  // isset id assignments
+
+  public static final Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> metaDataMap;
+  static {
+    Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> tmpMap = new EnumMap<_Fields, org.apache.thrift.meta_data.FieldMetaData>(_Fields.class);
+    tmpMap.put(_Fields.MESSAGE_TYPE, new org.apache.thrift.meta_data.FieldMetaData("messageType", org.apache.thrift.TFieldRequirementType.DEFAULT, 
+        new org.apache.thrift.meta_data.EnumMetaData(org.apache.thrift.protocol.TType.ENUM, OFMessageType.class)));
+    tmpMap.put(_Fields.SW_PORT_TUPLE, new org.apache.thrift.meta_data.FieldMetaData("swPortTuple", org.apache.thrift.TFieldRequirementType.DEFAULT, 
+        new org.apache.thrift.meta_data.StructMetaData(org.apache.thrift.protocol.TType.STRUCT, SwitchPortTuple.class)));
+    tmpMap.put(_Fields.DATA, new org.apache.thrift.meta_data.FieldMetaData("data", org.apache.thrift.TFieldRequirementType.DEFAULT, 
+        new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.STRING        , true)));
+    metaDataMap = Collections.unmodifiableMap(tmpMap);
+    org.apache.thrift.meta_data.FieldMetaData.addStructMetaDataMap(Packet.class, metaDataMap);
+  }
+
+  public Packet() {
+  }
+
+  public Packet(
+    OFMessageType messageType,
+    SwitchPortTuple swPortTuple,
+    ByteBuffer data)
+  {
+    this();
+    this.messageType = messageType;
+    this.swPortTuple = swPortTuple;
+    this.data = data;
+  }
+
+  /**
+   * Performs a deep copy on <i>other</i>.
+   */
+  public Packet(Packet other) {
+    if (other.isSetMessageType()) {
+      this.messageType = other.messageType;
+    }
+    if (other.isSetSwPortTuple()) {
+      this.swPortTuple = new SwitchPortTuple(other.swPortTuple);
+    }
+    if (other.isSetData()) {
+      this.data = org.apache.thrift.TBaseHelper.copyBinary(other.data);
+;
+    }
+  }
+
+  public Packet deepCopy() {
+    return new Packet(this);
+  }
+
+  @Override
+  public void clear() {
+    this.messageType = null;
+    this.swPortTuple = null;
+    this.data = null;
+  }
+
+  /**
+   * 
+   * @see OFMessageType
+   */
+  public OFMessageType getMessageType() {
+    return this.messageType;
+  }
+
+  /**
+   * 
+   * @see OFMessageType
+   */
+  public Packet setMessageType(OFMessageType messageType) {
+    this.messageType = messageType;
+    return this;
+  }
+
+  public void unsetMessageType() {
+    this.messageType = null;
+  }
+
+  /** Returns true if field messageType is set (has been assigned a value) and false otherwise */
+  public boolean isSetMessageType() {
+    return this.messageType != null;
+  }
+
+  public void setMessageTypeIsSet(boolean value) {
+    if (!value) {
+      this.messageType = null;
+    }
+  }
+
+  public SwitchPortTuple getSwPortTuple() {
+    return this.swPortTuple;
+  }
+
+  public Packet setSwPortTuple(SwitchPortTuple swPortTuple) {
+    this.swPortTuple = swPortTuple;
+    return this;
+  }
+
+  public void unsetSwPortTuple() {
+    this.swPortTuple = null;
+  }
+
+  /** Returns true if field swPortTuple is set (has been assigned a value) and false otherwise */
+  public boolean isSetSwPortTuple() {
+    return this.swPortTuple != null;
+  }
+
+  public void setSwPortTupleIsSet(boolean value) {
+    if (!value) {
+      this.swPortTuple = null;
+    }
+  }
+
+  public byte[] getData() {
+    setData(org.apache.thrift.TBaseHelper.rightSize(data));
+    return data == null ? null : data.array();
+  }
+
+  public ByteBuffer bufferForData() {
+    return data;
+  }
+
+  public Packet setData(byte[] data) {
+    setData(data == null ? (ByteBuffer)null : ByteBuffer.wrap(data));
+    return this;
+  }
+
+  public Packet setData(ByteBuffer data) {
+    this.data = data;
+    return this;
+  }
+
+  public void unsetData() {
+    this.data = null;
+  }
+
+  /** Returns true if field data is set (has been assigned a value) and false otherwise */
+  public boolean isSetData() {
+    return this.data != null;
+  }
+
+  public void setDataIsSet(boolean value) {
+    if (!value) {
+      this.data = null;
+    }
+  }
+
+  public void setFieldValue(_Fields field, Object value) {
+    switch (field) {
+    case MESSAGE_TYPE:
+      if (value == null) {
+        unsetMessageType();
+      } else {
+        setMessageType((OFMessageType)value);
+      }
+      break;
+
+    case SW_PORT_TUPLE:
+      if (value == null) {
+        unsetSwPortTuple();
+      } else {
+        setSwPortTuple((SwitchPortTuple)value);
+      }
+      break;
+
+    case DATA:
+      if (value == null) {
+        unsetData();
+      } else {
+        setData((ByteBuffer)value);
+      }
+      break;
+
+    }
+  }
+
+  public Object getFieldValue(_Fields field) {
+    switch (field) {
+    case MESSAGE_TYPE:
+      return getMessageType();
+
+    case SW_PORT_TUPLE:
+      return getSwPortTuple();
+
+    case DATA:
+      return getData();
+
+    }
+    throw new IllegalStateException();
+  }
+
+  /** Returns true if field corresponding to fieldID is set (has been assigned a value) and false otherwise */
+  public boolean isSet(_Fields field) {
+    if (field == null) {
+      throw new IllegalArgumentException();
+    }
+
+    switch (field) {
+    case MESSAGE_TYPE:
+      return isSetMessageType();
+    case SW_PORT_TUPLE:
+      return isSetSwPortTuple();
+    case DATA:
+      return isSetData();
+    }
+    throw new IllegalStateException();
+  }
+
+  @Override
+  public boolean equals(Object that) {
+    if (that == null)
+      return false;
+    if (that instanceof Packet)
+      return this.equals((Packet)that);
+    return false;
+  }
+
+  public boolean equals(Packet that) {
+    if (that == null)
+      return false;
+
+    boolean this_present_messageType = true && this.isSetMessageType();
+    boolean that_present_messageType = true && that.isSetMessageType();
+    if (this_present_messageType || that_present_messageType) {
+      if (!(this_present_messageType && that_present_messageType))
+        return false;
+      if (!this.messageType.equals(that.messageType))
+        return false;
+    }
+
+    boolean this_present_swPortTuple = true && this.isSetSwPortTuple();
+    boolean that_present_swPortTuple = true && that.isSetSwPortTuple();
+    if (this_present_swPortTuple || that_present_swPortTuple) {
+      if (!(this_present_swPortTuple && that_present_swPortTuple))
+        return false;
+      if (!this.swPortTuple.equals(that.swPortTuple))
+        return false;
+    }
+
+    boolean this_present_data = true && this.isSetData();
+    boolean that_present_data = true && that.isSetData();
+    if (this_present_data || that_present_data) {
+      if (!(this_present_data && that_present_data))
+        return false;
+      if (!this.data.equals(that.data))
+        return false;
+    }
+
+    return true;
+  }
+
+  @Override
+  public int hashCode() {
+    return 0;
+  }
+
+  public int compareTo(Packet other) {
+    if (!getClass().equals(other.getClass())) {
+      return getClass().getName().compareTo(other.getClass().getName());
+    }
+
+    int lastComparison = 0;
+    Packet typedOther = (Packet)other;
+
+    lastComparison = Boolean.valueOf(isSetMessageType()).compareTo(typedOther.isSetMessageType());
+    if (lastComparison != 0) {
+      return lastComparison;
+    }
+    if (isSetMessageType()) {
+      lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.messageType, typedOther.messageType);
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+    }
+    lastComparison = Boolean.valueOf(isSetSwPortTuple()).compareTo(typedOther.isSetSwPortTuple());
+    if (lastComparison != 0) {
+      return lastComparison;
+    }
+    if (isSetSwPortTuple()) {
+      lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.swPortTuple, typedOther.swPortTuple);
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+    }
+    lastComparison = Boolean.valueOf(isSetData()).compareTo(typedOther.isSetData());
+    if (lastComparison != 0) {
+      return lastComparison;
+    }
+    if (isSetData()) {
+      lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.data, typedOther.data);
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+    }
+    return 0;
+  }
+
+  public _Fields fieldForId(int fieldId) {
+    return _Fields.findByThriftId(fieldId);
+  }
+
+  public void read(org.apache.thrift.protocol.TProtocol iprot) throws org.apache.thrift.TException {
+    org.apache.thrift.protocol.TField field;
+    iprot.readStructBegin();
+    while (true)
+    {
+      field = iprot.readFieldBegin();
+      if (field.type == org.apache.thrift.protocol.TType.STOP) { 
+        break;
+      }
+      switch (field.id) {
+        case 1: // MESSAGE_TYPE
+          if (field.type == org.apache.thrift.protocol.TType.I32) {
+            this.messageType = OFMessageType.findByValue(iprot.readI32());
+          } else { 
+            org.apache.thrift.protocol.TProtocolUtil.skip(iprot, field.type);
+          }
+          break;
+        case 2: // SW_PORT_TUPLE
+          if (field.type == org.apache.thrift.protocol.TType.STRUCT) {
+            this.swPortTuple = new SwitchPortTuple();
+            this.swPortTuple.read(iprot);
+          } else { 
+            org.apache.thrift.protocol.TProtocolUtil.skip(iprot, field.type);
+          }
+          break;
+        case 3: // DATA
+          if (field.type == org.apache.thrift.protocol.TType.STRING) {
+            this.data = iprot.readBinary();
+          } else { 
+            org.apache.thrift.protocol.TProtocolUtil.skip(iprot, field.type);
+          }
+          break;
+        default:
+          org.apache.thrift.protocol.TProtocolUtil.skip(iprot, field.type);
+      }
+      iprot.readFieldEnd();
+    }
+    iprot.readStructEnd();
+
+    // check for required fields of primitive type, which can't be checked in the validate method
+    validate();
+  }
+
+  public void write(org.apache.thrift.protocol.TProtocol oprot) throws org.apache.thrift.TException {
+    validate();
+
+    oprot.writeStructBegin(STRUCT_DESC);
+    if (this.messageType != null) {
+      oprot.writeFieldBegin(MESSAGE_TYPE_FIELD_DESC);
+      oprot.writeI32(this.messageType.getValue());
+      oprot.writeFieldEnd();
+    }
+    if (this.swPortTuple != null) {
+      oprot.writeFieldBegin(SW_PORT_TUPLE_FIELD_DESC);
+      this.swPortTuple.write(oprot);
+      oprot.writeFieldEnd();
+    }
+    if (this.data != null) {
+      oprot.writeFieldBegin(DATA_FIELD_DESC);
+      oprot.writeBinary(this.data);
+      oprot.writeFieldEnd();
+    }
+    oprot.writeFieldStop();
+    oprot.writeStructEnd();
+  }
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder("Packet(");
+    boolean first = true;
+
+    sb.append("messageType:");
+    if (this.messageType == null) {
+      sb.append("null");
+    } else {
+      sb.append(this.messageType);
+    }
+    first = false;
+    if (!first) sb.append(", ");
+    sb.append("swPortTuple:");
+    if (this.swPortTuple == null) {
+      sb.append("null");
+    } else {
+      sb.append(this.swPortTuple);
+    }
+    first = false;
+    if (!first) sb.append(", ");
+    sb.append("data:");
+    if (this.data == null) {
+      sb.append("null");
+    } else {
+      org.apache.thrift.TBaseHelper.toString(this.data, sb);
+    }
+    first = false;
+    sb.append(")");
+    return sb.toString();
+  }
+
+  public void validate() throws org.apache.thrift.TException {
+    // check for required fields
+  }
+
+  private void writeObject(java.io.ObjectOutputStream out) throws java.io.IOException {
+    try {
+      write(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(out)));
+    } catch (org.apache.thrift.TException te) {
+      throw new java.io.IOException(te);
+    }
+  }
+
+  private void readObject(java.io.ObjectInputStream in) throws java.io.IOException, ClassNotFoundException {
+    try {
+      read(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(in)));
+    } catch (org.apache.thrift.TException te) {
+      throw new java.io.IOException(te);
+    }
+  }
+
+}
+