Moving Power values to Double

Change-Id: I3529dffe017784487df31b56430e7b9fb9db0454
diff --git a/drivers/lumentum/src/main/java/org/onosproject/drivers/lumentum/LumentumPowerConfig.java b/drivers/lumentum/src/main/java/org/onosproject/drivers/lumentum/LumentumPowerConfig.java
index 7bc44c6..f495a21 100644
--- a/drivers/lumentum/src/main/java/org/onosproject/drivers/lumentum/LumentumPowerConfig.java
+++ b/drivers/lumentum/src/main/java/org/onosproject/drivers/lumentum/LumentumPowerConfig.java
@@ -46,13 +46,13 @@
 
 
     @Override
-    public Optional<Long> getTargetPower(PortNumber port, T component) {
+    public Optional<Double> getTargetPower(PortNumber port, T component) {
         return Optional.ofNullable(acquireTargetPower(port, component));
     }
 
     //Used by the ROADM app to set the "attenuation" parameter
     @Override
-    public void setTargetPower(PortNumber port, T component, long power) {
+    public void setTargetPower(PortNumber port, T component, double power) {
         if (component instanceof OchSignal) {
             setConnectionTargetPower(port, (OchSignal) component, power);
         } else {
@@ -61,12 +61,12 @@
     }
 
     @Override
-    public Optional<Long> currentPower(PortNumber port, T component) {
+    public Optional<Double> currentPower(PortNumber port, T component) {
         return Optional.ofNullable(acquireCurrentPower(port, component));
     }
 
     @Override
-    public Optional<Range<Long>> getTargetPowerRange(PortNumber portNumber, T component) {
+    public Optional<Range<Double>> getTargetPowerRange(PortNumber portNumber, T component) {
 
         log.debug("Lumentum getTargetPowerRange {}", portNumber);
         //TODO automatically read if a port is input or output
@@ -87,7 +87,7 @@
     }
 
     @Override
-    public Optional<Range<Long>> getInputPowerRange(PortNumber portNumber, T component) {
+    public Optional<Range<Double>> getInputPowerRange(PortNumber portNumber, T component) {
 
         log.debug("Lumentum getInputPowerRange {}", portNumber);
         //TODO automatically read if a port is input or output
@@ -110,7 +110,7 @@
     //TODO implement actual get configuration from the device
     //This is used by ROADM application to retrieve attenuation parameter, with T instanceof OchSignal
     //The ROADM app expresses the attenuation in 0.01 dB units
-    private Long acquireTargetPower(PortNumber port, T component) {
+    private Double acquireTargetPower(PortNumber port, T component) {
         log.debug("Lumentum get port {} target power...", port);
 
         if (component instanceof OchSignal) {
@@ -120,7 +120,7 @@
 
             if (rules == null) {
                 log.error("Lumentum NETCONF fail to retrieve attenuation signal {} port {}", component, port);
-                return 0L;
+                return 0.0;
             } else {
                 rule = rules.stream()
                         .filter(c -> ((LumentumFlowRule) c).getOutputPort() == port)
@@ -131,20 +131,20 @@
 
             if (rule == null) {
                 log.error("Lumentum NETCONF fail to retrieve attenuation signal {} port {}", component, port);
-                return 0L;
+                return 0.0;
             } else {
                 log.debug("Lumentum NETCONF on port {} attenuation {}", port,
                         (((LumentumFlowRule) rule).attenuation * 100));
-                return ((long) (((LumentumFlowRule) rule).attenuation * 100));
+                return ((LumentumFlowRule) rule).attenuation * 100;
             }
         }
 
-        return 0L;
+        return 0.0;
     }
 
     //TODO implement actual get configuration from the device
     //This is used by ROADM application to retrieve power parameter, with T instanceof OchSignal
-    private Long acquireCurrentPower(PortNumber port, T component) {
+    private Double acquireCurrentPower(PortNumber port, T component) {
         log.debug("Lumentum get port {} current power...", port);
 
         if (component instanceof OchSignal) {
@@ -154,7 +154,7 @@
 
             if (rules == null) {
                 log.error("Lumentum NETCONF fail to retrieve power signal {} port {}", component, port);
-                return 0L;
+                return 0.0;
             } else {
                 rule = rules.stream()
                         .filter(c -> ((LumentumFlowRule) c).getInputPort() == port)
@@ -165,38 +165,38 @@
 
             if (rule == null) {
                 log.error("Lumentum NETCONF fail to retrieve power signal {} port {}", component, port);
-                return 0L;
+                return 0.0;
             } else {
                 log.debug("Lumentum NETCONF on port {} power {}", port, (((LumentumFlowRule) rule).inputPower));
-                return ((long) (((LumentumFlowRule) rule).inputPower * 100));
+                return ((double) (((LumentumFlowRule) rule).inputPower * 100));
             }
         }
 
-        return 0L;
+        return 0.0;
     }
 
     //TODO implement actual get configuration from the device
     //Return PowerRange -60 dBm to 60 dBm
-    private Range<Long> getTxPowerRange(PortNumber port, T component) {
+    private Range<Double> getTxPowerRange(PortNumber port, T component) {
         log.debug("Get port {} tx power range...", port);
-        return Range.closed(-60L, 60L);
+        return Range.closed(-60.0, 60.0);
     }
 
     //TODO implement actual get configuration from the device
     //Return PowerRange -60dBm to 60 dBm
-    private Range<Long> getRxPowerRange(PortNumber port, T component) {
+    private Range<Double> getRxPowerRange(PortNumber port, T component) {
         log.debug("Get port {} rx power range...", port);
-        return Range.closed(-60L, 60L);
+        return Range.closed(-60.0, 60.0);
     }
 
     //TODO implement configuration on the device
     //Nothing to do
-    private void setPortTargetPower(PortNumber port, long power) {
+    private void setPortTargetPower(PortNumber port, double power) {
         log.debug("Set port {} target power {}", port, power);
     }
 
     //Used by the ROADM app to set the "attenuation" parameter
-    private void setConnectionTargetPower(PortNumber port, OchSignal signal, long power) {
+    private void setConnectionTargetPower(PortNumber port, OchSignal signal, double power) {
         log.debug("Set connection target power {} ochsignal {} port {}", power, signal, port);
 
         Set<FlowRule> rules = getConnectionCache().get(did());
@@ -231,7 +231,7 @@
 
     //Following Lumentum documentation <edit-config> operation to edit connection parameter
     //Currently only edit the "attenuation" parameter
-    private boolean editConnection(int moduleId, int connectionId, long attenuation) {
+    private boolean editConnection(int moduleId, int connectionId, double attenuation) {
 
         double attenuationDouble = ((double) attenuation);
 
diff --git a/drivers/odtn-driver/src/main/java/org/onosproject/drivers/odtn/CassiniTerminalDevicePowerConfig.java b/drivers/odtn-driver/src/main/java/org/onosproject/drivers/odtn/CassiniTerminalDevicePowerConfig.java
index 7b312bf..24251e6 100644
--- a/drivers/odtn-driver/src/main/java/org/onosproject/drivers/odtn/CassiniTerminalDevicePowerConfig.java
+++ b/drivers/odtn-driver/src/main/java/org/onosproject/drivers/odtn/CassiniTerminalDevicePowerConfig.java
@@ -58,8 +58,6 @@
 
     private static final String RPC_CLOSE_TAG = "</rpc>";
 
-    private static final long NO_POWER = -50;
-
     private static final Logger log = getLogger(CassiniTerminalDevicePowerConfig.class);
 
     private ComponentType state = ComponentType.DIRECTION;
@@ -122,37 +120,37 @@
      * @return target power value
      */
     @Override
-    public Optional<Long> getTargetPower(PortNumber port, T component) {
+    public Optional<Double> getTargetPower(PortNumber port, T component) {
         checkState(component);
         return state.getTargetPower(port, component);
     }
 
     @Override
-    public void setTargetPower(PortNumber port, T component, long power) {
+    public void setTargetPower(PortNumber port, T component, double power) {
         checkState(component);
         state.setTargetPower(port, component, power);
     }
 
     @Override
-    public Optional<Long> currentPower(PortNumber port, T component) {
+    public Optional<Double> currentPower(PortNumber port, T component) {
         checkState(component);
         return state.currentPower(port, component);
     }
 
     @Override
-    public Optional<Long> currentInputPower(PortNumber port, T component) {
+    public Optional<Double> currentInputPower(PortNumber port, T component) {
         checkState(component);
         return state.currentInputPower(port, component);
     }
 
     @Override
-    public Optional<Range<Long>> getTargetPowerRange(PortNumber port, T component) {
+    public Optional<Range<Double>> getTargetPowerRange(PortNumber port, T component) {
         checkState(component);
         return state.getTargetPowerRange(port, component);
     }
 
     @Override
-    public Optional<Range<Long>> getInputPowerRange(PortNumber port, T component) {
+    public Optional<Range<Double>> getInputPowerRange(PortNumber port, T component) {
         checkState(component);
         return state.getInputPowerRange(port, component);
     }
@@ -195,12 +193,12 @@
          */
         DIRECTION() {
             @Override
-            public Optional<Long> getTargetPower(PortNumber port, Object component) {
+            public Optional<Double> getTargetPower(PortNumber port, Object component) {
                 return super.getTargetPower(port, component);
             }
 
             @Override
-            public void setTargetPower(PortNumber port, Object component, long power) {
+            public void setTargetPower(PortNumber port, Object component, double power) {
                 super.setTargetPower(port, component, power);
             }
         },
@@ -210,12 +208,12 @@
          */
         OCHSIGNAL() {
             @Override
-            public Optional<Long> getTargetPower(PortNumber port, Object component) {
+            public Optional<Double> getTargetPower(PortNumber port, Object component) {
                 return super.getTargetPower(port, component);
             }
 
             @Override
-            public void setTargetPower(PortNumber port, Object component, long power) {
+            public void setTargetPower(PortNumber port, Object component, double power) {
                 super.setTargetPower(port, component, power);
             }
         };
@@ -230,7 +228,7 @@
          * @param component component
          * @return target power
          */
-        Optional<Long> getTargetPower(PortNumber port, Object component) {
+        Optional<Double> getTargetPower(PortNumber port, Object component) {
             NetconfSession session = cassini.getNetconfSession(cassini.did());
             checkNotNull(session);
             String filter = parsePort(cassini, port, null, null);
@@ -253,7 +251,10 @@
             try {
                 HierarchicalConfiguration config =
                         xconf.configurationAt("data/components/component/optical-channel/config");
-                long power = Float.valueOf(config.getString("target-output-power")).longValue();
+                if (config == null || config.getString("target-output-power") == null) {
+                    return Optional.empty();
+                }
+                double power = Float.valueOf(config.getString("target-output-power")).doubleValue();
                 return Optional.of(power);
             } catch (IllegalArgumentException e) {
                 return Optional.empty();
@@ -267,7 +268,7 @@
          * @param component component
          * @param power     target value
          */
-        void setTargetPower(PortNumber port, Object component, long power) {
+        void setTargetPower(PortNumber port, Object component, double power) {
             NetconfSession session = cassini.getNetconfSession(cassini.did());
             checkNotNull(session);
             String editConfig = parsePort(cassini, port, null, power);
@@ -301,13 +302,16 @@
          * @param component the component.
          * @return current output power.
          */
-        Optional<Long> currentPower(PortNumber port, Object component) {
+        Optional<Double> currentPower(PortNumber port, Object component) {
             XMLConfiguration xconf = getOpticalChannelState(
                     cassini, port, "<output-power><instant/></output-power>");
             try {
                 HierarchicalConfiguration config =
                         xconf.configurationAt("data/components/component/optical-channel/state/output-power");
-                long currentPower = Float.valueOf(config.getString("instant")).longValue();
+                if (config == null || config.getString("instant") == null) {
+                    return Optional.empty();
+                }
+                double currentPower = Float.valueOf(config.getString("instant")).doubleValue();
                 return Optional.of(currentPower);
             } catch (IllegalArgumentException e) {
                 return Optional.empty();
@@ -321,28 +325,31 @@
          * @param component the component
          * @return current input power
          */
-        Optional<Long> currentInputPower(PortNumber port, Object component) {
+        Optional<Double> currentInputPower(PortNumber port, Object component) {
             XMLConfiguration xconf = getOpticalChannelState(
                     cassini, port, "<input-power><instant/></input-power>");
             try {
                 HierarchicalConfiguration config =
                         xconf.configurationAt("data/components/component/optical-channel/state/input-power");
-                long currentPower = Float.valueOf(config.getString("instant")).longValue();
+                if (config == null || config.getString("instant") == null) {
+                    return Optional.empty();
+                }
+                double currentPower = Float.valueOf(config.getString("instant")).doubleValue();
                 return Optional.of(currentPower);
             } catch (IllegalArgumentException e) {
                 return Optional.empty();
             }
         }
 
-        Optional<Range<Long>> getTargetPowerRange(PortNumber port, Object component) {
-            long targetMin = -30;
-            long targetMax = 1;
+        Optional<Range<Double>> getTargetPowerRange(PortNumber port, Object component) {
+            double targetMin = -30;
+            double targetMax = 1;
             return Optional.of(Range.open(targetMin, targetMax));
         }
 
-        Optional<Range<Long>> getInputPowerRange(PortNumber port, Object component) {
-            long targetMin = -30;
-            long targetMax = 1;
+        Optional<Range<Double>> getInputPowerRange(PortNumber port, Object component) {
+            double targetMin = -30;
+            double targetMax = 1;
             return Optional.of(Range.open(targetMin, targetMax));
         }
 
@@ -409,7 +416,7 @@
          * @return filtering string in xml format
          */
         private static String parsePort(CassiniTerminalDevicePowerConfig pc, PortNumber portNumber,
-                                        Object component, Long power) {
+                                        Object component, Double power) {
             if (component == null) {
                 String name = ocName(pc, portNumber);
                 StringBuilder sb = new StringBuilder("<components xmlns=\"http://openconfig.net/yang/platform\">");
diff --git a/drivers/odtn-driver/src/main/java/org/onosproject/drivers/odtn/CassiniTerminalDevicePowerConfigExt.java b/drivers/odtn-driver/src/main/java/org/onosproject/drivers/odtn/CassiniTerminalDevicePowerConfigExt.java
index 0029fff..b823e0c 100644
--- a/drivers/odtn-driver/src/main/java/org/onosproject/drivers/odtn/CassiniTerminalDevicePowerConfigExt.java
+++ b/drivers/odtn-driver/src/main/java/org/onosproject/drivers/odtn/CassiniTerminalDevicePowerConfigExt.java
@@ -56,7 +56,7 @@
 
     private static final String RPC_CLOSE_TAG = "</rpc>";
 
-    private static final long NO_POWER = -50;
+    private static final double NO_POWER = -50;
 
     private static final Logger log = getLogger(CassiniTerminalDevicePowerConfigExt.class);
 
@@ -119,37 +119,37 @@
      * @return target power value
      */
     @Override
-    public Optional<Long> getTargetPower(PortNumber port, T component) {
+    public Optional<Double> getTargetPower(PortNumber port, T component) {
         checkState(component);
         return state.getTargetPower(port, component);
     }
 
     @Override
-    public void setTargetPower(PortNumber port, T component, long power) {
+    public void setTargetPower(PortNumber port, T component, double power) {
         checkState(component);
         state.setTargetPower(port, component, power);
     }
 
     @Override
-    public Optional<Long> currentPower(PortNumber port, T component) {
+    public Optional<Double> currentPower(PortNumber port, T component) {
         checkState(component);
         return state.currentPower(port, component);
     }
 
     @Override
-    public Optional<Long> currentInputPower(PortNumber port, T component) {
+    public Optional<Double> currentInputPower(PortNumber port, T component) {
         checkState(component);
         return state.currentInputPower(port, component);
     }
 
     @Override
-    public Optional<Range<Long>> getTargetPowerRange(PortNumber port, T component) {
+    public Optional<Range<Double>> getTargetPowerRange(PortNumber port, T component) {
         checkState(component);
         return state.getTargetPowerRange(port, component);
     }
 
     @Override
-    public Optional<Range<Long>> getInputPowerRange(PortNumber port, T component) {
+    public Optional<Range<Double>> getInputPowerRange(PortNumber port, T component) {
         checkState(component);
         return state.getInputPowerRange(port, component);
     }
@@ -191,11 +191,11 @@
          */
         DIRECTION() {
             @Override
-            public Optional<Long> getTargetPower(PortNumber port, Object component) {
+            public Optional<Double> getTargetPower(PortNumber port, Object component) {
                 return super.getTargetPower(port, component);
             }
             @Override
-            public void setTargetPower(PortNumber port, Object component, long power) {
+            public void setTargetPower(PortNumber port, Object component, double power) {
                 super.setTargetPower(port, component, power);
             }
         },
@@ -205,12 +205,12 @@
          */
         OCHSIGNAL() {
             @Override
-            public Optional<Long> getTargetPower(PortNumber port, Object component) {
+            public Optional<Double> getTargetPower(PortNumber port, Object component) {
                 return super.getTargetPower(port, component);
             }
 
             @Override
-            public void setTargetPower(PortNumber port, Object component, long power) {
+            public void setTargetPower(PortNumber port, Object component, double power) {
                 super.setTargetPower(port, component, power);
             }
         };
@@ -225,7 +225,7 @@
          * @param component component
          * @return target power
          */
-        Optional<Long> getTargetPower(PortNumber port, Object component) {
+        Optional<Double> getTargetPower(PortNumber port, Object component) {
             NetconfSession session = cassini.getNetconfSession(cassini.did());
             checkNotNull(session);
             String filter = parsePort(cassini, port, null, null);
@@ -241,7 +241,7 @@
             try {
                 HierarchicalConfiguration config =
                         xconf.configurationAt("data/components/component/optical-channel/config");
-                long power = Float.valueOf(config.getString("target-output-power")).longValue();
+                double power = Float.valueOf(config.getString("target-output-power")).doubleValue();
                 return Optional.of(power);
             } catch (IllegalArgumentException e) {
                 return Optional.empty();
@@ -254,7 +254,7 @@
          * @param component component
          * @param power target value
          */
-        void setTargetPower(PortNumber port, Object component, long power) {
+        void setTargetPower(PortNumber port, Object component, double power) {
             NetconfSession session = cassini.getNetconfSession(cassini.did());
             checkNotNull(session);
             String editConfig = parsePort(cassini, port, null, power);
@@ -281,13 +281,13 @@
          * @param component the component.
          * @return current output power.
          */
-        Optional<Long> currentPower(PortNumber port, Object component) {
+        Optional<Double> currentPower(PortNumber port, Object component) {
             XMLConfiguration xconf = getOpticalChannelState(
                                     cassini, port, "<output-power><instant/></output-power>");
             try {
                 HierarchicalConfiguration config =
                         xconf.configurationAt("data/components/component/optical-channel/state/output-power");
-                long currentPower = Float.valueOf(config.getString("instant")).longValue();
+                double currentPower = Float.valueOf(config.getString("instant")).doubleValue();
                 return Optional.of(currentPower);
             } catch (IllegalArgumentException e) {
                 return Optional.empty();
@@ -300,27 +300,27 @@
          * @param component the component
          * @return current input power
          */
-        Optional<Long> currentInputPower(PortNumber port, Object component) {
+        Optional<Double> currentInputPower(PortNumber port, Object component) {
             XMLConfiguration xconf = getOpticalChannelState(
                     cassini, port, "<input-power><instant/></input-power>");
             try {
                 HierarchicalConfiguration config =
                         xconf.configurationAt("data/components/component/optical-channel/state/input-power");
-                long currentPower = Float.valueOf(config.getString("instant")).longValue();
+                double currentPower = Float.valueOf(config.getString("instant")).doubleValue();
                 return Optional.of(currentPower);
             } catch (IllegalArgumentException e) {
                 return Optional.empty();
             }
         }
 
-        Optional<Range<Long>> getTargetPowerRange(PortNumber port, Object component) {
+        Optional<Range<Double>> getTargetPowerRange(PortNumber port, Object component) {
             XMLConfiguration xconf = getOpticalChannelState(
                     cassini, port, "<target-power-range/>");
             try {
                 HierarchicalConfiguration config =
                         xconf.configurationAt("data/components/component/optical-channel/state/target-power-range");
-                long targetMin = Float.valueOf(config.getString("min")).longValue();
-                long targetMax = Float.valueOf(config.getString("max")).longValue();
+                double targetMin = Float.valueOf(config.getString("min")).doubleValue();
+                double targetMax = Float.valueOf(config.getString("max")).doubleValue();
                 return Optional.of(Range.open(targetMin, targetMax));
             } catch (IllegalArgumentException e) {
                 return Optional.empty();
@@ -328,14 +328,14 @@
 
         }
 
-        Optional<Range<Long>> getInputPowerRange(PortNumber port, Object component) {
+        Optional<Range<Double>> getInputPowerRange(PortNumber port, Object component) {
             XMLConfiguration xconf = getOpticalChannelState(
                     cassini, port, "<input-power-range/>");
             try {
                 HierarchicalConfiguration config =
                         xconf.configurationAt("data/components/component/optical-channel/state/input-power-range");
-                long inputMin = Float.valueOf(config.getString("min")).longValue();
-                long inputMax = Float.valueOf(config.getString("max")).longValue();
+                double inputMin = Float.valueOf(config.getString("min")).doubleValue();
+                double inputMax = Float.valueOf(config.getString("max")).doubleValue();
                 return Optional.of(Range.open(inputMin, inputMax));
             } catch (IllegalArgumentException e) {
                 return Optional.empty();
@@ -395,7 +395,7 @@
          * @return filtering string in xml format
          */
         private static String parsePort(CassiniTerminalDevicePowerConfigExt pc, PortNumber portNumber,
-                                        Object component, Long power) {
+                                        Object component, Double power) {
             if (component == null) {
                 String name = ocName(pc, portNumber);
                 StringBuilder sb = new StringBuilder("<components xmlns=\"http://openconfig.net/yang/platform\">");
diff --git a/drivers/oplink/src/main/java/org/onosproject/drivers/oplink/OplinkOpticalPowerConfig.java b/drivers/oplink/src/main/java/org/onosproject/drivers/oplink/OplinkOpticalPowerConfig.java
index 110096c..dba2f6f 100644
--- a/drivers/oplink/src/main/java/org/onosproject/drivers/oplink/OplinkOpticalPowerConfig.java
+++ b/drivers/oplink/src/main/java/org/onosproject/drivers/oplink/OplinkOpticalPowerConfig.java
@@ -69,38 +69,54 @@
     private static final Logger log = getLogger(OplinkOpticalPowerConfig.class);
 
     @Override
-    public Optional<Long> getTargetPower(PortNumber port, T component) {
-        return Optional.ofNullable(acquireTargetPower(port, component));
+    public Optional<Double> getTargetPower(PortNumber port, T component) {
+        Long power = acquireTargetPower(port, component);
+        if (power == null) {
+            return Optional.empty();
+        }
+        return Optional.of(power.doubleValue());
     }
 
     @Override
-    public void setTargetPower(PortNumber port, T component, long power) {
+    public void setTargetPower(PortNumber port, T component, double power) {
         if (component instanceof OchSignal) {
-            setChannelTargetPower(port, (OchSignal) component, power);
+            setChannelTargetPower(port, (OchSignal) component, (long) power);
         } else {
-            setPortTargetPower(port, power);
+            setPortTargetPower(port, (long) power);
         }
     }
 
     @Override
-    public Optional<Long> currentPower(PortNumber port, T component) {
-        return Optional.ofNullable(acquireCurrentPower(port, component));
+    public Optional<Double> currentPower(PortNumber port, T component) {
+        Long power = acquireCurrentPower(port, component);
+        if (power == null) {
+            return Optional.empty();
+        }
+        return Optional.of(power.doubleValue());
     }
 
     @Override
-    public Optional<Range<Long>> getTargetPowerRange(PortNumber port, T component) {
-        return Optional.ofNullable(getTxPowerRange(port, component));
+    public Optional<Range<Double>> getTargetPowerRange(PortNumber port, T component) {
+        Range<Long> power = getTxPowerRange(port, component);
+        if (power == null) {
+            return Optional.empty();
+        }
+        return Optional.of(Range.closed((double) power.lowerEndpoint(), (double) power.upperEndpoint()));
     }
 
     @Override
-    public Optional<Range<Long>> getInputPowerRange(PortNumber port, T component) {
-        return Optional.ofNullable(getRxPowerRange(port, component));
+    public Optional<Range<Double>> getInputPowerRange(PortNumber port, T component) {
+        Range<Long> power = getRxPowerRange(port, component);
+        if (power == null) {
+            return Optional.empty();
+        }
+        return Optional.of(Range.closed((double) power.lowerEndpoint(), (double) power.upperEndpoint()));
     }
 
     private String getPortPowerFilter(PortNumber port, String selection) {
         return new StringBuilder(xmlOpen(KEY_OPENOPTICALDEV_XMLNS))
                 .append(xmlOpen(KEY_PORTS))
-                .append(xml(KEY_PORTID, Long.toString(port.toLong())))
+                .append(xml(KEY_PORTID, Double.toString(port.toLong())))
                 .append(xmlOpen(KEY_PORT))
                 .append(xmlEmpty(selection))
                 .append(xmlClose(KEY_PORT))
@@ -112,7 +128,7 @@
     private String getChannelPowerFilter(PortNumber port, OchSignal channel) {
         return new StringBuilder(xmlOpen(KEY_OPENOPTICALDEV_XMLNS))
                 .append(xmlOpen(KEY_OCMS))
-                .append(xml(KEY_PORTID, Long.toString(port.toLong())))
+                .append(xml(KEY_PORTID, Double.toString(port.toLong())))
                 .append(xmlOpen(KEY_OCMSTATS))
                 .append(xml(KEY_CHNUM, Integer.toString(channel.spacingMultiplier())))
                 .append(xmlEmpty(KEY_CHSTATS))
@@ -135,7 +151,7 @@
     private String getPowerRangeFilter(PortNumber port, String direction) {
         return new StringBuilder(xmlOpen(KEY_OPENOPTICALDEV_XMLNS))
                 .append(xmlOpen(KEY_PORTS))
-                .append(xml(KEY_PORTID, Long.toString(port.toLong())))
+                .append(xml(KEY_PORTID, Double.toString(port.toLong())))
                 .append(xmlOpen(KEY_PORT))
                 .append(xml(KEY_PORTDIRECT, direction))
                 .append(xmlEmpty(KEY_PORTPROPERTY))
@@ -194,9 +210,9 @@
         log.debug("Set port{} target power...", port);
         String cfg = new StringBuilder(xmlOpen(KEY_OPENOPTICALDEV_XMLNS))
                 .append(xmlOpen(KEY_PORTS))
-                .append(xml(KEY_PORTID, Long.toString(port.toLong())))
+                .append(xml(KEY_PORTID, Double.toString(port.toLong())))
                 .append(xmlOpen(KEY_PORT))
-                .append(xml(KEY_PORTTARPWR, Long.toString(power)))
+                .append(xml(KEY_PORTTARPWR, Double.toString(power)))
                 .append(xmlClose(KEY_PORT))
                 .append(xmlClose(KEY_PORTS))
                 .append(xmlClose(KEY_OPENOPTICALDEV))
@@ -209,7 +225,7 @@
         FlowRuleService service = handler().get(FlowRuleService.class);
         Iterable<FlowEntry> entries = service.getFlowEntries(data().deviceId());
         for (FlowEntry entry : entries) {
-            OplinkCrossConnect crossConnect  = OplinkOpticalUtility.fromFlowRule(this, entry);
+            OplinkCrossConnect crossConnect = OplinkOpticalUtility.fromFlowRule(this, entry);
             // The channel port might be input port or output port.
             if ((port.equals(crossConnect.getInPort()) || port.equals(crossConnect.getOutPort())) &&
                     channel.spacingMultiplier() == crossConnect.getChannel()) {
diff --git a/drivers/optical/src/main/java/org/onosproject/driver/optical/power/OplinkEdfaPowerConfig.java b/drivers/optical/src/main/java/org/onosproject/driver/optical/power/OplinkEdfaPowerConfig.java
index 6aabf17..762d1be 100644
--- a/drivers/optical/src/main/java/org/onosproject/driver/optical/power/OplinkEdfaPowerConfig.java
+++ b/drivers/optical/src/main/java/org/onosproject/driver/optical/power/OplinkEdfaPowerConfig.java
@@ -25,40 +25,55 @@
 
 /**
  * Port Power (Gain and attenuation) implementation for Oplink EDFA device.
- *
+ * <p>
  * An Oplink EDFA port exposes Direction resources.
  * Set gain(attenuation) at AGC mode or set output level at APC mode.
- *
  */
 
 public class OplinkEdfaPowerConfig extends AbstractHandlerBehaviour
-                                    implements PowerConfig<Object> {
+        implements PowerConfig<Object> {
 
     // oplink power config utility
     private OplinkPowerConfigUtil oplinkUtil = new OplinkPowerConfigUtil(this);
 
     @Override
-    public Optional<Long> getTargetPower(PortNumber port, Object component) {
-        return Optional.ofNullable(oplinkUtil.getTargetPower(port, component));
+    public Optional<Double> getTargetPower(PortNumber port, Object component) {
+        Long power = oplinkUtil.getTargetPower(port, component);
+        if (power == null) {
+            return Optional.empty();
+        }
+        return Optional.of(power.doubleValue());
     }
 
     @Override
-    public Optional<Long> currentPower(PortNumber port, Object component) {
-        return Optional.ofNullable(oplinkUtil.getCurrentPower(port, component));
+    public Optional<Double> currentPower(PortNumber port, Object component) {
+        Long power = oplinkUtil.getCurrentPower(port, component);
+        if (power == null) {
+            return Optional.empty();
+        }
+        return Optional.of(power.doubleValue());
     }
 
     @Override
-    public void setTargetPower(PortNumber port, Object component, long power) {
-        oplinkUtil.setTargetPower(port, component, power);
+    public void setTargetPower(PortNumber port, Object component, double power) {
+        oplinkUtil.setTargetPower(port, component, (long) power);
     }
 
     @Override
-    public Optional<Range<Long>> getTargetPowerRange(PortNumber port, Object component) {
-        return Optional.ofNullable(oplinkUtil.getTargetPowerRange(port, component));
+    public Optional<Range<Double>> getTargetPowerRange(PortNumber port, Object component) {
+        Range<Long> power = oplinkUtil.getTargetPowerRange(port, component);
+        if (power == null) {
+            return Optional.empty();
+        }
+        return Optional.of(Range.closed((double) power.lowerEndpoint(), (double) power.upperEndpoint()));
     }
 
     @Override
-    public Optional<Range<Long>> getInputPowerRange(PortNumber port, Object component) {
-        return Optional.ofNullable(oplinkUtil.getInputPowerRange(port, component));
+    public Optional<Range<Double>> getInputPowerRange(PortNumber port, Object component) {
+        Range<Long> power = oplinkUtil.getInputPowerRange(port, component);
+        if (power == null) {
+            return Optional.empty();
+        }
+        return Optional.of(Range.closed((double) power.lowerEndpoint(), (double) power.upperEndpoint()));
     }
 }
diff --git a/drivers/optical/src/main/java/org/onosproject/driver/optical/power/OplinkRoadmPowerConfig.java b/drivers/optical/src/main/java/org/onosproject/driver/optical/power/OplinkRoadmPowerConfig.java
index 157ec8a..b750bf1 100644
--- a/drivers/optical/src/main/java/org/onosproject/driver/optical/power/OplinkRoadmPowerConfig.java
+++ b/drivers/optical/src/main/java/org/onosproject/driver/optical/power/OplinkRoadmPowerConfig.java
@@ -25,40 +25,54 @@
 
 /**
  * Port Power (Gain and attenuation) implementation for Oplink 1-SLOT-8D ROADM.
- *
+ * <p>
  * An Oplink ROADM port exposes OchSignal resources.
  * Optical Power can be set at port level or channel/wavelength level (attenuation).
- *
  */
 
 public class OplinkRoadmPowerConfig extends AbstractHandlerBehaviour
-                                    implements PowerConfig<Object> {
+        implements PowerConfig<Object> {
 
-    // oplink power config utility
     private OplinkPowerConfigUtil oplinkUtil = new OplinkPowerConfigUtil(this);
 
     @Override
-    public Optional<Long> getTargetPower(PortNumber port, Object component) {
-        return Optional.ofNullable(oplinkUtil.getTargetPower(port, component));
+    public Optional<Double> getTargetPower(PortNumber port, Object component) {
+        Long power = oplinkUtil.getTargetPower(port, component);
+        if (power == null) {
+            return Optional.empty();
+        }
+        return Optional.of(power.doubleValue());
     }
 
     @Override
-    public Optional<Long> currentPower(PortNumber port, Object component) {
-        return Optional.ofNullable(oplinkUtil.getCurrentPower(port, component));
+    public Optional<Double> currentPower(PortNumber port, Object component) {
+        Long power = oplinkUtil.getCurrentPower(port, component);
+        if (power == null) {
+            return Optional.empty();
+        }
+        return Optional.of(power.doubleValue());
     }
 
     @Override
-    public void setTargetPower(PortNumber port, Object component, long power) {
-        oplinkUtil.setTargetPower(port, component, power);
+    public void setTargetPower(PortNumber port, Object component, double power) {
+        oplinkUtil.setTargetPower(port, component, (long) power);
     }
 
     @Override
-    public Optional<Range<Long>> getTargetPowerRange(PortNumber port, Object component) {
-        return Optional.ofNullable(oplinkUtil.getTargetPowerRange(port, component));
+    public Optional<Range<Double>> getTargetPowerRange(PortNumber port, Object component) {
+        Range<Long> power = oplinkUtil.getTargetPowerRange(port, component);
+        if (power == null) {
+            return Optional.empty();
+        }
+        return Optional.of(Range.closed((double) power.lowerEndpoint(), (double) power.upperEndpoint()));
     }
 
     @Override
-    public Optional<Range<Long>> getInputPowerRange(PortNumber port, Object component) {
-        return Optional.ofNullable(oplinkUtil.getInputPowerRange(port, component));
+    public Optional<Range<Double>> getInputPowerRange(PortNumber port, Object component) {
+        Range<Long> power = oplinkUtil.getInputPowerRange(port, component);
+        if (power == null) {
+            return Optional.empty();
+        }
+        return Optional.of(Range.closed((double) power.lowerEndpoint(), (double) power.upperEndpoint()));
     }
 }
diff --git a/drivers/optical/src/main/java/org/onosproject/driver/optical/power/OplinkSwitchPowerConfig.java b/drivers/optical/src/main/java/org/onosproject/driver/optical/power/OplinkSwitchPowerConfig.java
index 2946fb1..ab7b8e5 100644
--- a/drivers/optical/src/main/java/org/onosproject/driver/optical/power/OplinkSwitchPowerConfig.java
+++ b/drivers/optical/src/main/java/org/onosproject/driver/optical/power/OplinkSwitchPowerConfig.java
@@ -25,50 +25,65 @@
 
 /**
  * Port Power implementation for Oplink protection switch device.
- *
+ * <p>
  * Intruduction:
- *                                       _____
- *             _____________________    |     | 0  VIRTUAL
- *            |                     |   |  1  |
- *   CLIENT   |                     |---|-----|--- PRIMARY
+ * _____
+ * _____________________    |     | 0  VIRTUAL
+ * |                     |   |  1  |
+ * CLIENT   |                     |---|-----|--- PRIMARY
  * -----------|         OPS         |   |     |                NETWORK
- *      3     |                     |---|-----|--- SECONDARY
- *            |_____________________|   |  2  |
- *                                      |_____|
+ * 3     |                     |---|-----|--- SECONDARY
+ * |_____________________|   |  2  |
+ * |_____|
  * Uses flow to set switch path.
  * network port = 0, client port = 3, AUTO mode.
  * network port = 1 or 2, client port = 3, MANUAL mode.
- *
  */
 
 public class OplinkSwitchPowerConfig extends AbstractHandlerBehaviour
-                                    implements PowerConfig<Object> {
+        implements PowerConfig<Object> {
 
     // oplink power config utility
     private OplinkPowerConfigUtil oplinkUtil = new OplinkPowerConfigUtil(this);
 
     @Override
-    public Optional<Long> getTargetPower(PortNumber port, Object component) {
-        return Optional.ofNullable(null);
+    public Optional<Double> getTargetPower(PortNumber port, Object component) {
+        Long power = oplinkUtil.getTargetPower(port, component);
+        if (power == null) {
+            return Optional.empty();
+        }
+        return Optional.of(power.doubleValue());
     }
 
     @Override
-    public Optional<Long> currentPower(PortNumber port, Object component) {
-        return Optional.ofNullable(oplinkUtil.getCurrentPower(port, component));
+    public Optional<Double> currentPower(PortNumber port, Object component) {
+        Long power = oplinkUtil.getCurrentPower(port, component);
+        if (power == null) {
+            return Optional.empty();
+        }
+        return Optional.of(power.doubleValue());
     }
 
     @Override
-    public void setTargetPower(PortNumber port, Object component, long power) {
-        return;
+    public void setTargetPower(PortNumber port, Object component, double power) {
+        oplinkUtil.setTargetPower(port, component, (long) power);
     }
 
     @Override
-    public Optional<Range<Long>> getTargetPowerRange(PortNumber port, Object component) {
-        return Optional.ofNullable(oplinkUtil.getTargetPowerRange(port, component));
+    public Optional<Range<Double>> getTargetPowerRange(PortNumber port, Object component) {
+        Range<Long> power = oplinkUtil.getTargetPowerRange(port, component);
+        if (power == null) {
+            return Optional.empty();
+        }
+        return Optional.of(Range.closed((double) power.lowerEndpoint(), (double) power.upperEndpoint()));
     }
 
     @Override
-    public Optional<Range<Long>> getInputPowerRange(PortNumber port, Object component) {
-        return Optional.ofNullable(oplinkUtil.getInputPowerRange(port, component));
+    public Optional<Range<Double>> getInputPowerRange(PortNumber port, Object component) {
+        Range<Long> power = oplinkUtil.getInputPowerRange(port, component);
+        if (power == null) {
+            return Optional.empty();
+        }
+        return Optional.of(Range.closed((double) power.lowerEndpoint(), (double) power.upperEndpoint()));
     }
 }
diff --git a/drivers/polatis/netconf/src/main/java/org/onosproject/drivers/polatis/netconf/PolatisPowerConfig.java b/drivers/polatis/netconf/src/main/java/org/onosproject/drivers/polatis/netconf/PolatisPowerConfig.java
index 61a3727..05df59a 100644
--- a/drivers/polatis/netconf/src/main/java/org/onosproject/drivers/polatis/netconf/PolatisPowerConfig.java
+++ b/drivers/polatis/netconf/src/main/java/org/onosproject/drivers/polatis/netconf/PolatisPowerConfig.java
@@ -58,7 +58,7 @@
  * Set target port power or channel attenuation to an optical netconf device.
  */
 public class PolatisPowerConfig<T> extends AbstractHandlerBehaviour
-    implements PowerConfig<T> {
+        implements PowerConfig<T> {
 
     private static final String KEY_POWER = "power";
     private static final String KEY_ATTEN_LEVEL = "atten-level";
@@ -68,32 +68,48 @@
     private static final Logger log = getLogger(PolatisPowerConfig.class);
 
     @Override
-    public Optional<Long> getTargetPower(PortNumber port, T component) {
-        return Optional.ofNullable(acquireTargetPower(port, component));
+    public Optional<Double> getTargetPower(PortNumber port, T component) {
+        Long power = acquireCurrentPower(port, component);
+        if (power == null) {
+            return Optional.empty();
+        }
+        return Optional.of(power.doubleValue());
     }
 
     @Override
-    public void setTargetPower(PortNumber port, T component, long power) {
+    public void setTargetPower(PortNumber port, T component, double power) {
         if (component instanceof OchSignal) {
             log.warn("Channel power is not applicable.");
             return;
         }
-        setPortTargetPower(port, power);
+        setPortTargetPower(port, (long) power);
     }
 
     @Override
-    public Optional<Long> currentPower(PortNumber port, T component) {
-        return Optional.ofNullable(acquireCurrentPower(port, component));
+    public Optional<Double> currentPower(PortNumber port, T component) {
+        Long power = acquireCurrentPower(port, component);
+        if (power == null) {
+            return Optional.empty();
+        }
+        return Optional.of(power.doubleValue());
     }
 
     @Override
-    public Optional<Range<Long>> getTargetPowerRange(PortNumber port, T component) {
-        return Optional.ofNullable(getTxPowerRange(port, component));
+    public Optional<Range<Double>> getTargetPowerRange(PortNumber port, T component) {
+        Range<Long> power = getTxPowerRange(port, component);
+        if (power == null) {
+            return Optional.empty();
+        }
+        return Optional.of(Range.closed((double) power.lowerEndpoint(), (double) power.upperEndpoint()));
     }
 
     @Override
-    public Optional<Range<Long>> getInputPowerRange(PortNumber port, T component) {
-        return Optional.ofNullable(getRxPowerRange(port, component));
+    public Optional<Range<Double>> getInputPowerRange(PortNumber port, T component) {
+        Range<Long> power = getRxPowerRange(port, component);
+        if (power == null) {
+            return Optional.empty();
+        }
+        return Optional.of(Range.closed((double) power.lowerEndpoint(), (double) power.upperEndpoint()));
     }
 
     @Override
diff --git a/drivers/polatis/openflow/src/main/java/org/onosproject/drivers/polatis/openflow/OpenFlowPowerConfig.java b/drivers/polatis/openflow/src/main/java/org/onosproject/drivers/polatis/openflow/OpenFlowPowerConfig.java
index 2255ba0..9ac2504 100644
--- a/drivers/polatis/openflow/src/main/java/org/onosproject/drivers/polatis/openflow/OpenFlowPowerConfig.java
+++ b/drivers/polatis/openflow/src/main/java/org/onosproject/drivers/polatis/openflow/OpenFlowPowerConfig.java
@@ -53,12 +53,12 @@
  * Set target port power or channel attenuation to an openflow device.
  */
 public class OpenFlowPowerConfig<T> extends AbstractHandlerBehaviour
-    implements PowerConfig<T> {
+        implements PowerConfig<T> {
 
     private static final Logger log = getLogger(OpenFlowPowerConfig.class);
 
     @Override
-    public Optional<Long> getTargetPower(PortNumber port, T component) {
+    public Optional<Double> getTargetPower(PortNumber port, T component) {
         // TODO: OpenFlow does not seem to have the concept of retrieving this
         // information as only the current power is returned in the port stats
         // reply. This can be different from the configured value. Perhaps, the
@@ -68,12 +68,12 @@
     }
 
     @Override
-    public void setTargetPower(PortNumber port, T component, long power) {
+    public void setTargetPower(PortNumber port, T component, double power) {
         setPortTargetPower(port, power);
     }
 
     @Override
-    public Optional<Long> currentPower(PortNumber port, T component) {
+    public Optional<Double> currentPower(PortNumber port, T component) {
         // TODO: Ideally, this needs to read the port stats output for real-time
         // data or as a short-term workaround, it could get the last read value
         // from the port stats polling.
@@ -81,14 +81,14 @@
     }
 
     @Override
-    public Optional<Range<Long>> getTargetPowerRange(PortNumber port, T component) {
+    public Optional<Range<Double>> getTargetPowerRange(PortNumber port, T component) {
         for (OFPortDesc pd : getPortDescs()) {
             if (pd.getPortNo().getPortNumber() == port.toLong()) {
                 for (OFPortDescProp prop : pd.getProperties()) {
                     if (prop instanceof OFPortDescPropOptical) {
                         OFPortDescPropOptical oprop = (OFPortDescPropOptical) prop;
-                        long txMin = oprop.getTxPwrMin();
-                        long txMax = oprop.getTxPwrMax();
+                        double txMin = oprop.getTxPwrMin();
+                        double txMax = oprop.getTxPwrMax();
                         return Optional.of(Range.closed(txMin, txMax));
                     }
                 }
@@ -104,7 +104,7 @@
     }
 
     @Override
-    public Optional<Range<Long>> getInputPowerRange(PortNumber port, T component) {
+    public Optional<Range<Double>> getInputPowerRange(PortNumber port, T component) {
         log.warn("Unsupported as OpenFlow does not seem to have the concept of input (presumably rx) power range.");
         return Optional.empty();
     }
@@ -129,7 +129,7 @@
     }
 
     private OFPortMod.Builder makePortMod(OpenFlowSwitch sw, PortNumber portNumber,
-                                boolean enable) {
+                                          boolean enable) {
         OFPortMod.Builder pmb = sw.factory().buildPortMod();
         OFPort port = OFPort.of((int) portNumber.toLong());
         pmb.setPortNo(port);
@@ -151,7 +151,7 @@
         return pmb;
     }
 
-    private boolean setPortTargetPower(PortNumber port, long power) {
+    private boolean setPortTargetPower(PortNumber port, double power) {
         DeviceId deviceId = handler().data().deviceId();
         final Dpid dpid = dpid(deviceId.uri());
         OpenFlowSwitch sw = handler().get(OpenFlowController.class).getSwitch(dpid);
@@ -167,9 +167,9 @@
             }
         }
         OFPortMod.Builder pmb = makePortMod(sw, port, enable);
-        long configure = OFOpticalPortFeaturesSerializerVer14.TX_PWR_VAL;
+        double configure = OFOpticalPortFeaturesSerializerVer14.TX_PWR_VAL;
         OFPortModPropOptical.Builder property = sw.factory().buildPortModPropOptical();
-        property.setTxPwr(power);
+        property.setTxPwr((long) power);
 
         List<OFPortModProp> properties = new ArrayList<>();
         properties.add(property.build());
diff --git a/drivers/polatis/snmp/src/main/java/org/onosproject/drivers/polatis/snmp/PolatisPowerConfig.java b/drivers/polatis/snmp/src/main/java/org/onosproject/drivers/polatis/snmp/PolatisPowerConfig.java
index 4de4a88..4a3b749 100644
--- a/drivers/polatis/snmp/src/main/java/org/onosproject/drivers/polatis/snmp/PolatisPowerConfig.java
+++ b/drivers/polatis/snmp/src/main/java/org/onosproject/drivers/polatis/snmp/PolatisPowerConfig.java
@@ -50,7 +50,7 @@
  * Set target port power or channel attenuation to an optical snmp device.
  */
 public class PolatisPowerConfig<T> extends AbstractHandlerBehaviour
-    implements PowerConfig<T> {
+        implements PowerConfig<T> {
 
     private static final int VOA_STATE_ABSOLUTE = 2;
 
@@ -64,32 +64,48 @@
     private final Logger log = getLogger(getClass());
 
     @Override
-    public Optional<Long> getTargetPower(PortNumber port, T component) {
-        return Optional.ofNullable(acquireTargetPower(port, component));
+    public Optional<Double> getTargetPower(PortNumber port, T component) {
+        Long power = acquireCurrentPower(port, component);
+        if (power == null) {
+            return Optional.empty();
+        }
+        return Optional.of(power.doubleValue());
     }
 
     @Override
-    public void setTargetPower(PortNumber port, T component, long power) {
+    public void setTargetPower(PortNumber port, T component, double power) {
         if (component instanceof OchSignal) {
             log.warn("Channel power is not applicable.");
             return;
         }
-        setPortTargetPower(port, power);
+        setPortTargetPower(port, (long) power);
     }
 
     @Override
-    public Optional<Long> currentPower(PortNumber port, T component) {
-        return Optional.ofNullable(acquireCurrentPower(port, component));
+    public Optional<Double> currentPower(PortNumber port, T component) {
+        Long power = acquireCurrentPower(port, component);
+        if (power == null) {
+            return Optional.empty();
+        }
+        return Optional.of(power.doubleValue());
     }
 
     @Override
-    public Optional<Range<Long>> getTargetPowerRange(PortNumber port, T component) {
-        return Optional.ofNullable(getTxPowerRange(port, component));
+    public Optional<Range<Double>> getTargetPowerRange(PortNumber port, T component) {
+        Range<Long> power = getTxPowerRange(port, component);
+        if (power == null) {
+            return Optional.empty();
+        }
+        return Optional.of(Range.closed((double) power.lowerEndpoint(), (double) power.upperEndpoint()));
     }
 
     @Override
-    public Optional<Range<Long>> getInputPowerRange(PortNumber port, T component) {
-        return Optional.ofNullable(getRxPowerRange(port, component));
+    public Optional<Range<Double>> getInputPowerRange(PortNumber port, T component) {
+        Range<Long> power = getRxPowerRange(port, component);
+        if (power == null) {
+            return Optional.empty();
+        }
+        return Optional.of(Range.closed((double) power.lowerEndpoint(), (double) power.upperEndpoint()));
     }
 
     @Override
@@ -158,7 +174,7 @@
         DeviceId deviceId = handler().data().deviceId();
         Long targetPower = 0L;
         try {
-          targetPower = Long.valueOf(get(handler(), VOA_LEVEL_OID + "." + port.toLong()).toInt());
+            targetPower = Long.valueOf(get(handler(), VOA_LEVEL_OID + "." + port.toLong()).toInt());
         } catch (IOException e) {
             log.error("Error reading target power for device {} exception {}", deviceId, e);
         }
@@ -175,7 +191,7 @@
         DeviceId deviceId = handler().data().deviceId();
         Long power = 0L;
         try {
-          power = Long.valueOf(get(handler(), OPM_POWER_OID + "." + port.toLong()).toInt());
+            power = Long.valueOf(get(handler(), OPM_POWER_OID + "." + port.toLong()).toInt());
         } catch (IOException e) {
             log.error("Error reading current power for device {} exception {}", deviceId, e);
         }