Making number of components configurable using the central component configuration subsystem.

Change-Id: Ia32c51480913689339a766d9849e792d62f7d133
diff --git a/providers/host/src/main/java/org/onosproject/provider/host/impl/HostLocationProvider.java b/providers/host/src/main/java/org/onosproject/provider/host/impl/HostLocationProvider.java
index 2d48d20..f6ae2c5 100644
--- a/providers/host/src/main/java/org/onosproject/provider/host/impl/HostLocationProvider.java
+++ b/providers/host/src/main/java/org/onosproject/provider/host/impl/HostLocationProvider.java
@@ -37,6 +37,7 @@
 import org.onlab.packet.VlanId;
 import org.onlab.packet.ndp.NeighborAdvertisement;
 import org.onlab.packet.ndp.NeighborSolicitation;
+import org.onosproject.cfg.ComponentConfigService;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
 import org.onosproject.net.ConnectPoint;
@@ -93,6 +94,9 @@
     @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
     protected DeviceService deviceService;
 
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected ComponentConfigService cfgService;
+
     private HostProviderService providerService;
 
     private final InternalHostProvider processor = new InternalHostProvider();
@@ -118,8 +122,8 @@
 
     @Activate
     public void activate(ComponentContext context) {
-        appId =
-            coreService.registerApplication("org.onosproject.provider.host");
+        cfgService.registerProperties(getClass());
+        appId = coreService.registerApplication("org.onosproject.provider.host");
         readComponentConfiguration(context);
 
         providerService = providerRegistry.register(this);
@@ -155,6 +159,7 @@
 
     @Deactivate
     public void deactivate() {
+        cfgService.unregisterProperties(getClass(), false);
         providerRegistry.unregister(this);
         packetService.removeProcessor(processor);
         deviceService.removeListener(deviceListener);
diff --git a/providers/host/src/main/resources/org/onosproject/provider/host/impl/HostLocationProvider.cfgdef b/providers/host/src/main/resources/org/onosproject/provider/host/impl/HostLocationProvider.cfgdef
new file mode 100644
index 0000000..0412408
--- /dev/null
+++ b/providers/host/src/main/resources/org/onosproject/provider/host/impl/HostLocationProvider.cfgdef
@@ -0,0 +1,3 @@
+# Temporary: to be auto-generated in near future
+hostRemovalEnabled|BOOLEAN|true|Enable host removal on port/device down events
+ipv6NeighborDiscovery|BOOLEAN|false|Enable using IPv6 Neighbor Discovery by the Host Location Provider; default is false
diff --git a/providers/host/src/test/java/org/onosproject/provider/host/impl/HostLocationProviderTest.java b/providers/host/src/test/java/org/onosproject/provider/host/impl/HostLocationProviderTest.java
index 86c9c4c..2a5f03c 100644
--- a/providers/host/src/test/java/org/onosproject/provider/host/impl/HostLocationProviderTest.java
+++ b/providers/host/src/test/java/org/onosproject/provider/host/impl/HostLocationProviderTest.java
@@ -46,6 +46,7 @@
 import org.onlab.packet.IpAddress;
 import org.onlab.packet.MacAddress;
 import org.onlab.packet.VlanId;
+import org.onosproject.cfg.ComponentConfigAdapter;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
 import org.onosproject.core.DefaultApplicationId;
@@ -145,6 +146,7 @@
             .andReturn(appId).anyTimes();
         replay(coreService);
 
+        provider.cfgService = new ComponentConfigAdapter();
         provider.coreService = coreService;
 
         provider.providerRegistry = hostRegistry;
diff --git a/providers/lldp/src/main/java/org/onosproject/provider/lldp/impl/LLDPLinkProvider.java b/providers/lldp/src/main/java/org/onosproject/provider/lldp/impl/LLDPLinkProvider.java
index c1b8aa1..c3c9ceb 100644
--- a/providers/lldp/src/main/java/org/onosproject/provider/lldp/impl/LLDPLinkProvider.java
+++ b/providers/lldp/src/main/java/org/onosproject/provider/lldp/impl/LLDPLinkProvider.java
@@ -26,6 +26,7 @@
 import org.apache.felix.scr.annotations.Reference;
 import org.apache.felix.scr.annotations.ReferenceCardinality;
 import org.onlab.packet.Ethernet;
+import org.onosproject.cfg.ComponentConfigService;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
 import org.onosproject.mastership.MastershipEvent;
@@ -61,10 +62,10 @@
 
 import static java.util.concurrent.Executors.newSingleThreadScheduledExecutor;
 import static java.util.concurrent.TimeUnit.SECONDS;
+import static org.onlab.util.Tools.get;
 import static org.onlab.util.Tools.groupedThreads;
 import static org.slf4j.LoggerFactory.getLogger;
 
-
 /**
  * Provider which uses an OpenFlow controller to detect network
  * infrastructure links.
@@ -95,22 +96,27 @@
     @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
     protected MastershipService masterService;
 
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected ComponentConfigService cfgService;
+
     private LinkProviderService providerService;
 
     private ScheduledExecutorService executor;
 
-    @Property(name = PROP_USE_BDDP, label = "use BDDP for link discovery")
+    @Property(name = PROP_USE_BDDP, boolValue = true,
+            label = "Use BDDP for link discovery")
     private boolean useBDDP = true;
 
-    @Property(name = PROP_DISABLE_LD, label = "permanently disable link discovery")
-    private boolean disableLD = false;
+    @Property(name = PROP_DISABLE_LD, boolValue = false,
+            label = "Permanently disable link discovery")
+    private boolean disableLinkDiscovery = false;
 
     private static final long INIT_DELAY = 5;
     private static final long DELAY = 5;
 
-    @Property(name = PROP_LLDP_SUPPRESSION,
+    @Property(name = PROP_LLDP_SUPPRESSION, value = DEFAULT_LLDP_SUPPRESSION_CONFIG,
             label = "Path to LLDP suppression configuration file")
-    private String filePath = DEFAULT_LLDP_SUPPRESSION_CONFIG;
+    private String lldpSuppression = DEFAULT_LLDP_SUPPRESSION_CONFIG;
 
 
     private final InternalLinkProvider listener = new InternalLinkProvider();
@@ -131,12 +137,12 @@
 
     @Activate
     public void activate(ComponentContext context) {
-        appId =
-            coreService.registerApplication("org.onosproject.provider.lldp");
+        cfgService.registerProperties(getClass());
+        appId = coreService.registerApplication("org.onosproject.provider.lldp");
 
         // to load configuration at startup
         modified(context);
-        if (disableLD) {
+        if (disableLinkDiscovery) {
             log.info("Link Discovery has been permanently disabled by configuration");
             return;
         }
@@ -153,7 +159,7 @@
                 continue;
             }
             ld = new LinkDiscovery(device, packetService, masterService,
-                              providerService, useBDDP);
+                                   providerService, useBDDP);
             discoverers.put(device.id(), ld);
             for (Port p : deviceService.getPorts(device.id())) {
                 if (rules.isSuppressed(p)) {
@@ -177,7 +183,8 @@
 
     @Deactivate
     public void deactivate() {
-        if (disableLD) {
+        cfgService.unregisterProperties(getClass(), false);
+        if (disableLinkDiscovery) {
             return;
         }
         executor.shutdownNow();
@@ -202,29 +209,29 @@
         @SuppressWarnings("rawtypes")
         Dictionary properties = context.getProperties();
 
-        String s = (String) properties.get(PROP_DISABLE_LD);
+        String s = get(properties, PROP_DISABLE_LD);
         if (!Strings.isNullOrEmpty(s)) {
-            disableLD = Boolean.valueOf(s);
+            disableLinkDiscovery = Boolean.valueOf(s);
         }
-        s = (String) properties.get(PROP_USE_BDDP);
+        s = get(properties, PROP_USE_BDDP);
         if (!Strings.isNullOrEmpty(s)) {
             useBDDP = Boolean.valueOf(s);
         }
-        s = (String) properties.get(PROP_LLDP_SUPPRESSION);
+        s = get(properties, PROP_LLDP_SUPPRESSION);
         if (!Strings.isNullOrEmpty(s)) {
-            filePath = s;
+            lldpSuppression = s;
         }
 
         loadSuppressionRules();
     }
 
     private void loadSuppressionRules() {
-        SuppressionRulesStore store = new SuppressionRulesStore(filePath);
+        SuppressionRulesStore store = new SuppressionRulesStore(lldpSuppression);
         try {
-            log.info("Reading suppression rules from {}", filePath);
+            log.info("Reading suppression rules from {}", lldpSuppression);
             rules = store.read();
         } catch (IOException e) {
-            log.info("Failed to load {}, using built-in rules", filePath);
+            log.info("Failed to load {}, using built-in rules", lldpSuppression);
             // default rule to suppress ROADM to maintain compatibility
             rules = new SuppressionRules(ImmutableSet.of(),
                                          EnumSet.of(Device.Type.ROADM),
@@ -238,13 +245,13 @@
         TrafficSelector.Builder lldpSelector = DefaultTrafficSelector.builder();
         lldpSelector.matchEthType(Ethernet.TYPE_LLDP);
         packetService.requestPackets(lldpSelector.build(),
-                PacketPriority.CONTROL, appId);
+                                     PacketPriority.CONTROL, appId);
 
         if (useBDDP) {
             TrafficSelector.Builder bddpSelector = DefaultTrafficSelector.builder();
             bddpSelector.matchEthType(Ethernet.TYPE_BSN);
             packetService.requestPackets(bddpSelector.build(),
-                    PacketPriority.CONTROL, appId);
+                                         PacketPriority.CONTROL, appId);
         }
     }
 
@@ -271,10 +278,10 @@
                 if (!discoverers.containsKey(deviceId)) {
                     // ideally, should never reach here
                     log.debug("Device mastership changed ({}) {}",
-                            event.type(), deviceId);
+                              event.type(), deviceId);
                     discoverers.put(deviceId, new LinkDiscovery(device,
-                            packetService, masterService, providerService,
-                            useBDDP));
+                                                                packetService, masterService, providerService,
+                                                                useBDDP));
                 }
             }
         }
@@ -307,7 +314,8 @@
                             log.debug("Device added ({}) {}", event.type(),
                                       deviceId);
                             discoverers.put(deviceId, new LinkDiscovery(device,
-                                    packetService, masterService, providerService, useBDDP));
+                                                                        packetService, masterService,
+                                                                        providerService, useBDDP));
                         } else {
                             if (ld.isStopped()) {
                                 log.debug("Device restarted ({}) {}", event.type(),
@@ -412,7 +420,7 @@
                     synchronized (discoverers) {
                         if (!discoverers.containsKey(did)) {
                             ld = new LinkDiscovery(dev, packetService,
-                                    masterService, providerService, useBDDP);
+                                                   masterService, providerService, useBDDP);
                             discoverers.put(did, ld);
                             for (Port p : deviceService.getPorts(did)) {
                                 if (rules.isSuppressed(p)) {
diff --git a/providers/lldp/src/main/resource/org/onosproject/provider/lldp/impl/LLDPLinkProvider.cfgdef b/providers/lldp/src/main/resource/org/onosproject/provider/lldp/impl/LLDPLinkProvider.cfgdef
new file mode 100644
index 0000000..588e4f3
--- /dev/null
+++ b/providers/lldp/src/main/resource/org/onosproject/provider/lldp/impl/LLDPLinkProvider.cfgdef
@@ -0,0 +1,4 @@
+# Temporary: to be auto-generated in near future
+useBDDP|BOOLEAN|true|Use BDDP for link discovery
+disableLinkDiscovery|BOOLEAN|false|Permanently disable link discovery
+lldpSuppression|STRING|../config/lldp_suppression.json|Path to LLDP suppression configuration file
diff --git a/providers/lldp/src/main/resources/org/onosproject/provider/lldp/impl/LLDPLinkProvider.cfgdef b/providers/lldp/src/main/resources/org/onosproject/provider/lldp/impl/LLDPLinkProvider.cfgdef
new file mode 100644
index 0000000..588e4f3
--- /dev/null
+++ b/providers/lldp/src/main/resources/org/onosproject/provider/lldp/impl/LLDPLinkProvider.cfgdef
@@ -0,0 +1,4 @@
+# Temporary: to be auto-generated in near future
+useBDDP|BOOLEAN|true|Use BDDP for link discovery
+disableLinkDiscovery|BOOLEAN|false|Permanently disable link discovery
+lldpSuppression|STRING|../config/lldp_suppression.json|Path to LLDP suppression configuration file
diff --git a/providers/lldp/src/test/java/org/onosproject/provider/lldp/impl/LLDPLinkProviderTest.java b/providers/lldp/src/test/java/org/onosproject/provider/lldp/impl/LLDPLinkProviderTest.java
index a601b23..d1d0f9c 100644
--- a/providers/lldp/src/test/java/org/onosproject/provider/lldp/impl/LLDPLinkProviderTest.java
+++ b/providers/lldp/src/test/java/org/onosproject/provider/lldp/impl/LLDPLinkProviderTest.java
@@ -37,6 +37,7 @@
 import org.onlab.packet.ChassisId;
 import org.onlab.packet.Ethernet;
 import org.onlab.packet.ONOSLLDP;
+import org.onosproject.cfg.ComponentConfigAdapter;
 import org.onosproject.cluster.NodeId;
 import org.onosproject.cluster.RoleInfo;
 import org.onosproject.core.ApplicationId;
@@ -103,12 +104,12 @@
 
     @Before
     public void setUp() {
-
         coreService = createMock(CoreService.class);
         expect(coreService.registerApplication(appId.name()))
             .andReturn(appId).anyTimes();
         replay(coreService);
 
+        provider.cfgService = new ComponentConfigAdapter();
         provider.coreService = coreService;
 
         provider.deviceService = deviceService;
diff --git a/providers/null/host/src/main/java/org/onosproject/provider/nil/host/impl/NullHostProvider.java b/providers/null/host/src/main/java/org/onosproject/provider/nil/host/impl/NullHostProvider.java
index 3cddb9a..d5ee60e 100644
--- a/providers/null/host/src/main/java/org/onosproject/provider/nil/host/impl/NullHostProvider.java
+++ b/providers/null/host/src/main/java/org/onosproject/provider/nil/host/impl/NullHostProvider.java
@@ -22,6 +22,7 @@
 import org.apache.felix.scr.annotations.ReferenceCardinality;
 import org.onlab.packet.MacAddress;
 import org.onlab.packet.VlanId;
+import org.onosproject.cfg.ComponentConfigService;
 import org.onosproject.cluster.ClusterService;
 import org.onosproject.mastership.MastershipService;
 import org.onosproject.net.Device;
@@ -65,6 +66,9 @@
     @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
     protected HostProviderRegistry providerRegistry;
 
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected ComponentConfigService cfgService;
+
     private HostProviderService providerService;
 
     //make sure the device has enough ports to accomodate all of them.
@@ -90,6 +94,7 @@
 
     @Activate
     public void activate() {
+        cfgService.registerProperties(getClass());
         providerService = providerRegistry.register(this);
         for (Device dev : deviceService.getDevices()) {
             addHosts(dev);
@@ -101,6 +106,7 @@
 
     @Deactivate
     public void deactivate() {
+        cfgService.unregisterProperties(getClass(), false);
         providerRegistry.unregister(this);
         deviceService.removeListener(hostProvider);
         providerService = null;
diff --git a/providers/null/link/src/main/java/org/onosproject/provider/nil/link/impl/NullLinkProvider.java b/providers/null/link/src/main/java/org/onosproject/provider/nil/link/impl/NullLinkProvider.java
index 37cbfca..b819eb7 100644
--- a/providers/null/link/src/main/java/org/onosproject/provider/nil/link/impl/NullLinkProvider.java
+++ b/providers/null/link/src/main/java/org/onosproject/provider/nil/link/impl/NullLinkProvider.java
@@ -27,6 +27,7 @@
 import org.apache.felix.scr.annotations.Property;
 import org.apache.felix.scr.annotations.Reference;
 import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.onosproject.cfg.ComponentConfigService;
 import org.onosproject.cluster.ClusterService;
 import org.onosproject.cluster.NodeId;
 import org.onosproject.mastership.MastershipService;
@@ -101,6 +102,9 @@
     @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
     protected LinkProviderRegistry providerRegistry;
 
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected ComponentConfigService cfgService;
+
     private LinkProviderService providerService;
 
     private final InternalLinkProvider linkProvider = new InternalLinkProvider();
@@ -119,7 +123,7 @@
             Executors.newScheduledThreadPool(THREADS, groupedThreads("onos/null", "link-driver-%d"));
 
     // For flicker = true, duration between events in msec.
-    @Property(name = "eventRate", value = "0", label = "Duration between Link Event")
+    @Property(name = "eventRate", intValue = 0, label = "Duration between Link Event")
     private int eventRate = DEFAULT_RATE;
 
     // topology configuration file
@@ -137,6 +141,7 @@
 
     @Activate
     public void activate(ComponentContext context) {
+        cfgService.registerProperties(getClass());
         providerService = providerRegistry.register(this);
         modified(context);
 
@@ -166,6 +171,7 @@
 
     @Deactivate
     public void deactivate(ComponentContext context) {
+        cfgService.unregisterProperties(getClass(), false);
         linkDriver.shutdown();
         try {
             linkDriver.awaitTermination(1000, TimeUnit.MILLISECONDS);
diff --git a/providers/null/link/src/main/resource/org/onosproject/provider/nil/link/impl/NullLinkProvider.cfgdef b/providers/null/link/src/main/resource/org/onosproject/provider/nil/link/impl/NullLinkProvider.cfgdef
new file mode 100644
index 0000000..f1dda76
--- /dev/null
+++ b/providers/null/link/src/main/resource/org/onosproject/provider/nil/link/impl/NullLinkProvider.cfgdef
@@ -0,0 +1,3 @@
+# Temporary: to be auto-generated in near future
+  "eventRate"|INTEGER|0|Duration between Link Event
+  "cfgFile"|STRING|"/opt/onos/apache-karaf-3.0.2/etc/linkGraph.cfg"|Topology file location
diff --git a/providers/null/packet/src/main/java/org/onosproject/provider/nil/packet/impl/NullPacketProvider.java b/providers/null/packet/src/main/java/org/onosproject/provider/nil/packet/impl/NullPacketProvider.java
index 82f6ace..15bd671 100644
--- a/providers/null/packet/src/main/java/org/onosproject/provider/nil/packet/impl/NullPacketProvider.java
+++ b/providers/null/packet/src/main/java/org/onosproject/provider/nil/packet/impl/NullPacketProvider.java
@@ -24,6 +24,7 @@
 import org.apache.felix.scr.annotations.ReferenceCardinality;
 import org.onlab.packet.Ethernet;
 import org.onlab.packet.ICMP;
+import org.onosproject.cfg.ComponentConfigService;
 import org.onosproject.net.ConnectPoint;
 import org.onosproject.net.Device;
 import org.onosproject.net.PortNumber;
@@ -77,6 +78,9 @@
     @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
     protected DeviceService deviceService;
 
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected ComponentConfigService cfgService;
+
     // Rate to generate PacketEvents, per second
     @Property(name = "pktRate", intValue = DEFAULT_RATE,
             label = "Rate of PacketEvent generation")
@@ -91,6 +95,7 @@
 
     @Activate
     public void activate(ComponentContext context) {
+        cfgService.registerProperties(getClass());
         providerService = providerRegistry.register(this);
         if (!modified(context)) {
             packetDriver.submit(new PacketDriver());
@@ -100,6 +105,7 @@
 
     @Deactivate
     public void deactivate(ComponentContext context) {
+        cfgService.unregisterProperties(getClass(), false);
         try {
             packetDriver.awaitTermination(1000, TimeUnit.MILLISECONDS);
         } catch (InterruptedException e) {
diff --git a/providers/null/packet/src/main/resource/org/onosproject/provider/nil/packet/impl/NullPacketProvider.cfgdef b/providers/null/packet/src/main/resource/org/onosproject/provider/nil/packet/impl/NullPacketProvider.cfgdef
new file mode 100644
index 0000000..b71929c
--- /dev/null
+++ b/providers/null/packet/src/main/resource/org/onosproject/provider/nil/packet/impl/NullPacketProvider.cfgdef
@@ -0,0 +1,2 @@
+# Temporary: to be auto-generated in near future
+  "pktRate"|INTEGER|5|Rate of PacketEvent generation