Improve Executors related logging behavior

- Specify Logger for the Executor
- Use Executor#execute instead of ExecutorService#submit for
  fire and forget type of usage.
   Note: submit() will swallow thrown Exception

Change-Id: I507b841dc3feedf4ad20a746c304518d68fb846a
diff --git a/core/net/src/main/java/org/onosproject/net/device/impl/DeviceManager.java b/core/net/src/main/java/org/onosproject/net/device/impl/DeviceManager.java
index 60fd95a..5ef70fc 100644
--- a/core/net/src/main/java/org/onosproject/net/device/impl/DeviceManager.java
+++ b/core/net/src/main/java/org/onosproject/net/device/impl/DeviceManager.java
@@ -125,7 +125,8 @@
 
     @Activate
     public void activate() {
-        backgroundService = newSingleThreadScheduledExecutor(groupedThreads("onos/device", "manager-background"));
+        backgroundService = newSingleThreadScheduledExecutor(
+                             groupedThreads("onos/device", "manager-background", log));
         localNodeId = clusterService.getLocalNode().id();
 
         store.setDelegate(delegate);
@@ -499,7 +500,7 @@
                              deviceId, response, mastershipService.getLocalRole(deviceId));
                     // roleManager got the device to comply, but doesn't agree with
                     // the store; use the store's view, then try to reassert.
-                    backgroundService.submit(() -> reassertRole(deviceId, mastershipService.getLocalRole(deviceId)));
+                    backgroundService.execute(() -> reassertRole(deviceId, mastershipService.getLocalRole(deviceId)));
                     return;
                 }
             } else {
@@ -684,7 +685,7 @@
 
         @Override
         public void event(MastershipEvent event) {
-            backgroundService.submit(() -> {
+            backgroundService.execute(() -> {
                 try {
                     handleMastershipEvent(event);
                 } catch (Exception e) {
diff --git a/core/net/src/main/java/org/onosproject/net/flow/impl/FlowRuleManager.java b/core/net/src/main/java/org/onosproject/net/flow/impl/FlowRuleManager.java
index 94a782a..c3f1200 100644
--- a/core/net/src/main/java/org/onosproject/net/flow/impl/FlowRuleManager.java
+++ b/core/net/src/main/java/org/onosproject/net/flow/impl/FlowRuleManager.java
@@ -122,10 +122,10 @@
     private final FlowRuleDriverProvider defaultProvider = new FlowRuleDriverProvider();
 
     protected ExecutorService deviceInstallers =
-            Executors.newFixedThreadPool(32, groupedThreads("onos/flowservice", "device-installer-%d"));
+            Executors.newFixedThreadPool(32, groupedThreads("onos/flowservice", "device-installer-%d", log));
 
     protected ExecutorService operationsService =
-            Executors.newFixedThreadPool(32, groupedThreads("onos/flowservice", "operations-%d"));
+            Executors.newFixedThreadPool(32, groupedThreads("onos/flowservice", "operations-%d, log"));
 
     private IdGenerator idGenerator;
 
diff --git a/core/net/src/main/java/org/onosproject/net/intent/impl/IntentManager.java b/core/net/src/main/java/org/onosproject/net/intent/impl/IntentManager.java
index 61fc0df..1fc64d6 100644
--- a/core/net/src/main/java/org/onosproject/net/intent/impl/IntentManager.java
+++ b/core/net/src/main/java/org/onosproject/net/intent/impl/IntentManager.java
@@ -200,7 +200,7 @@
         if (newNumThreads != numThreads) {
             numThreads = newNumThreads;
             ExecutorService oldWorkerExecutor = workerExecutor;
-            workerExecutor = newFixedThreadPool(numThreads, groupedThreads("onos/intent", "worker-%d"));
+            workerExecutor = newFixedThreadPool(numThreads, groupedThreads("onos/intent", "worker-%d", log));
             if (oldWorkerExecutor != null) {
                 oldWorkerExecutor.shutdown();
             }
diff --git a/core/net/src/main/java/org/onosproject/net/newresource/impl/ResourceDeviceListener.java b/core/net/src/main/java/org/onosproject/net/newresource/impl/ResourceDeviceListener.java
index 1792bce..8e36ea9 100644
--- a/core/net/src/main/java/org/onosproject/net/newresource/impl/ResourceDeviceListener.java
+++ b/core/net/src/main/java/org/onosproject/net/newresource/impl/ResourceDeviceListener.java
@@ -138,11 +138,11 @@
     }
 
     private void registerDeviceResource(Device device) {
-        executor.submit(() -> adminService.register(Resources.discrete(device.id()).resource()));
+        executor.execute(() -> adminService.register(Resources.discrete(device.id()).resource()));
     }
 
     private void unregisterDeviceResource(Device device) {
-        executor.submit(() -> {
+        executor.execute(() -> {
             DiscreteResource devResource = Resources.discrete(device.id()).resource();
             List<Resource> allResources = getDescendantResources(devResource);
             adminService.unregister(Lists.transform(allResources, Resource::id));
@@ -151,7 +151,7 @@
 
     private void registerPortResource(Device device, Port port) {
         Resource portPath = Resources.discrete(device.id(), port.number()).resource();
-        executor.submit(() -> {
+        executor.execute(() -> {
             adminService.register(portPath);
 
             queryBandwidth(device.id(), port.number())
@@ -198,7 +198,7 @@
     }
 
     private void unregisterPortResource(Device device, Port port) {
-        executor.submit(() -> {
+        executor.execute(() -> {
             DiscreteResource portResource = Resources.discrete(device.id(), port.number()).resource();
             List<Resource> allResources = getDescendantResources(portResource);
             adminService.unregister(Lists.transform(allResources, Resource::id));
diff --git a/core/net/src/main/java/org/onosproject/net/newresource/impl/ResourceNetworkConfigListener.java b/core/net/src/main/java/org/onosproject/net/newresource/impl/ResourceNetworkConfigListener.java
index d6f9fdb..07561e4 100644
--- a/core/net/src/main/java/org/onosproject/net/newresource/impl/ResourceNetworkConfigListener.java
+++ b/core/net/src/main/java/org/onosproject/net/newresource/impl/ResourceNetworkConfigListener.java
@@ -89,7 +89,7 @@
     @Override
     public void event(NetworkConfigEvent event) {
         if (event.configClass() == BandwidthCapacity.class) {
-            executor.submit(() -> {
+            executor.execute(() -> {
             try {
                 handleBandwidthCapacity(event);
             } catch (Exception e) {
diff --git a/core/net/src/main/java/org/onosproject/net/newresource/impl/ResourceRegistrar.java b/core/net/src/main/java/org/onosproject/net/newresource/impl/ResourceRegistrar.java
index 1dbf197..77216ff 100644
--- a/core/net/src/main/java/org/onosproject/net/newresource/impl/ResourceRegistrar.java
+++ b/core/net/src/main/java/org/onosproject/net/newresource/impl/ResourceRegistrar.java
@@ -84,7 +84,7 @@
     private DeviceListener deviceListener;
 
     private final ExecutorService executor =
-            Executors.newSingleThreadExecutor(groupedThreads("onos/resource", "registrar"));
+            Executors.newSingleThreadExecutor(groupedThreads("onos/resource", "registrar", log));
 
     private NetworkConfigListener cfgListener;