Changed the way ProviderId is made to include URI scheme portion.

 package org.onlab.onos.net.provider;
 
 import com.google.common.collect.ImmutableSet;
+import org.onlab.onos.net.DeviceId;
 
 import java.util.HashMap;
 import java.util.Map;
@@ -20,6 +21,7 @@ public abstract class AbstractProviderRegistry<P extends Provider, S extends Pro
 
     private final Map<ProviderId, P> providers = new HashMap<>();
     private final Map<ProviderId, S> services = new HashMap<>();
+    private final Map<String, P> providersByScheme = new HashMap<>();
 
     /**
      * Creates a new provider service bound to the specified provider.
@@ -65,4 +67,14 @@ public abstract class AbstractProviderRegistry<P extends Provider, S extends Pro
         return providers.get(providerId);
     }
 
+    /**
+     * Returns the provider for the specified device ID based on URI scheme.
+     *
+     * @param deviceId device identifier
+     * @return provider bound to the URI scheme
+     */
+    protected synchronized P getProvider(DeviceId deviceId) {
+        return providersByScheme.get(deviceId.uri().getScheme());
+    }
+
 }

@@ -9,6 +9,7 @@ import static com.google.common.base.MoreObjects.toStringHelper;
  */
 public class ProviderId {
 
+    private final String scheme;
     private final String id;
 
     /**
@@ -16,15 +17,26 @@ public class ProviderId {
      * The providers are expected to follow the reverse DNS convention, e.g.
      * {@code org.onlab.onos.provider.of.device}
      *
-     * @param id string identifier
+     * @param scheme device URI scheme to which this provider is bound, e.g. "of", "snmp"
+     * @param id     string identifier
      */
-    public ProviderId(String id) {
+    public ProviderId(String scheme, String id) {
+        this.scheme = scheme;
         this.id = id;
     }
 
+    /**
+     * Returns the device URI scheme to which this provider is bound.
+     *
+     * @return device URI scheme
+     */
+    public String scheme() {
+        return scheme;
+    }
+
     @Override
     public int hashCode() {
-        return Objects.hash(id);
+        return Objects.hash(scheme, id);
     }
 
     @Override
@@ -36,12 +48,13 @@ public class ProviderId {
             return false;
         }
         final ProviderId other = (ProviderId) obj;
-        return Objects.equals(this.id, other.id);
+        return Objects.equals(this.scheme, other.scheme) &&
+                Objects.equals(this.id, other.id);
     }
 
     @Override
     public String toString() {
-        return toStringHelper(this).add("id", id).toString();
+        return toStringHelper(this).add("scheme", scheme).add("id", id).toString();
     }
 
 }

@@ -13,7 +13,7 @@ import static org.onlab.onos.net.DeviceId.deviceId;
  */
 public class DefaultDeviceTest {
 
-    private static final ProviderId PID = new ProviderId("foo");
+    private static final ProviderId PID = new ProviderId("of", "foo");
     private static final DeviceId DID1 = deviceId("of:foo");
     private static final DeviceId DID2 = deviceId("of:bar");
     private static final String MFR = "whitebox";

@@ -15,7 +15,7 @@ import static org.onlab.onos.net.PortNumber.portNumber;
  */
 public class DefaultEdgeLinkTest {
 
-    private static final ProviderId PID = new ProviderId("foo");
+    private static final ProviderId PID = new ProviderId("of", "foo");
     private static final DeviceId DID1 = deviceId("of:foo");
     private static final HostId HID1 = hostId("nic:foobar");
     private static final HostId HID2 = hostId("nic:barfoo");

@@ -15,7 +15,7 @@ import static org.onlab.onos.net.PortNumber.portNumber;
  */
 public class DefaultLinkTest {
 
-    private static final ProviderId PID = new ProviderId("foo");
+    private static final ProviderId PID = new ProviderId("of", "foo");
     private static final DeviceId DID1 = deviceId("of:foo");
     private static final DeviceId DID2 = deviceId("of:bar");
     private static final PortNumber P1 = portNumber(1);

@@ -14,7 +14,7 @@ import static org.onlab.onos.net.PortNumber.portNumber;
  */
 public class DefaultPortTest {
 
-    private static final ProviderId PID = new ProviderId("foo");
+    private static final ProviderId PID = new ProviderId("of", "foo");
     private static final DeviceId DID1 = deviceId("of:foo");
     private static final DeviceId DID2 = deviceId("of:bar");
     private static final PortNumber P1 = portNumber(1);

@@ -17,7 +17,7 @@ import com.google.common.collect.Sets;
  */
 public abstract class TestDeviceParams {
 
-    protected static final ProviderId PID = new ProviderId("foo");
+    protected static final ProviderId PID = new ProviderId("of", "foo");
     protected static final DeviceId DID1 = deviceId("of:foo");
     protected static final DeviceId DID2 = deviceId("of:bar");
     protected static final MacAddress MAC1 = MacAddress.valueOf("00:11:00:00:00:01");

@@ -18,7 +18,7 @@ import org.onlab.onos.net.provider.ProviderId;
 public class DeviceEventTest extends AbstractEventTest {
 
     private Device createDevice() {
-        return new DefaultDevice(new ProviderId("foo"), deviceId("of:foo"),
+        return new DefaultDevice(new ProviderId("of", "foo"), deviceId("of:foo"),
                 Device.Type.SWITCH, "box", "hw", "sw", "sn");
     }
 

@@ -34,7 +34,7 @@ public class HostEventTest extends AbstractEventTest {
         HostId hid = HostId.hostId(mac, vlan);
 
         return new DefaultHost(
-                new ProviderId("foo"), hid, mac, vlan, loc, ipset);
+                new ProviderId("of", "foo"), hid, mac, vlan, loc, ipset);
     }
 
     @Override

@@ -16,7 +16,7 @@ import static org.onlab.onos.net.PortNumber.portNumber;
 public class LinkEventTest extends AbstractEventTest {
 
     private Link createLink() {
-        return new DefaultLink(new ProviderId("foo"),
+        return new DefaultLink(new ProviderId("of", "foo"),
                                new ConnectPoint(deviceId("of:foo"), portNumber(1)),
                                new ConnectPoint(deviceId("of:bar"), portNumber(2)),
                                Link.Type.INDIRECT);

@@ -28,14 +28,14 @@ public class AbstractProviderRegistryTest {
         TestProviderRegistry registry = new TestProviderRegistry();
         assertEquals("incorrect provider count", 0, registry.getProviders().size());
 
-        ProviderId fooId = new ProviderId("foo");
+        ProviderId fooId = new ProviderId("of", "foo");
         TestProvider pFoo = new TestProvider(fooId);
         TestProviderService psFoo = registry.register(pFoo);
         assertEquals("incorrect provider count", 1, registry.getProviders().size());
         assertThat("provider not found", registry.getProviders().contains(fooId));
         assertEquals("incorrect provider", psFoo.provider(), pFoo);
 
-        ProviderId barId = new ProviderId("bar");
+        ProviderId barId = new ProviderId("of", "bar");
         TestProvider pBar = new TestProvider(barId);
         TestProviderService psBar = registry.register(pBar);
         assertEquals("incorrect provider count", 2, registry.getProviders().size());
@@ -52,7 +52,7 @@ public class AbstractProviderRegistryTest {
     @Test(expected = IllegalStateException.class)
     public void duplicateRegistration() {
         TestProviderRegistry registry = new TestProviderRegistry();
-        TestProvider pFoo = new TestProvider(new ProviderId("foo"));
+        TestProvider pFoo = new TestProvider(new ProviderId("of", "foo"));
         registry.register(pFoo);
         registry.register(pFoo);
     }
@@ -60,13 +60,13 @@ public class AbstractProviderRegistryTest {
     @Test
     public void voidUnregistration() {
         TestProviderRegistry registry = new TestProviderRegistry();
-        registry.unregister(new TestProvider(new ProviderId("foo")));
+        registry.unregister(new TestProvider(new ProviderId("of", "foo")));
     }
 
     @Test(expected = IllegalStateException.class)
     public void unregistration() {
         TestProviderRegistry registry = new TestProviderRegistry();
-        TestProvider pFoo = new TestProvider(new ProviderId("foo"));
+        TestProvider pFoo = new TestProvider(new ProviderId("of", "foo"));
         TestProviderService psFoo = registry.register(pFoo);
         registry.unregister(pFoo);
         psFoo.checkValidity();

@@ -11,7 +11,7 @@ public class AbstractProviderTest {
 
     @Test
     public void basics() {
-        ProviderId id = new ProviderId("foo.bar");
+        ProviderId id = new ProviderId("of", "foo.bar");
         TestProvider provider = new TestProvider(id);
         assertEquals("incorrect id", id, provider.id());
     }

@@ -11,8 +11,9 @@ public class ProviderIdTest {
     @Test
     public void basics() {
         new EqualsTester()
-                .addEqualityGroup(new ProviderId("foo"), new ProviderId("foo"))
-                .addEqualityGroup(new ProviderId("bar"))
+                .addEqualityGroup(new ProviderId("of", "foo"), new ProviderId("of", "foo"))
+                .addEqualityGroup(new ProviderId("snmp", "foo"), new ProviderId("snmp", "foo"))
+                .addEqualityGroup(new ProviderId("of", "bar"))
                 .testEquals();
     }
 

@@ -45,7 +45,7 @@ public class DefaultTopology extends AbstractModel implements Topology {
     private static final TarjanGraphSearch<TopologyVertex, TopologyEdge> TARJAN =
             new TarjanGraphSearch<>();
 
-    private static final ProviderId PID = new ProviderId("org.onlab.onos.net");
+    private static final ProviderId PID = new ProviderId("core", "org.onlab.onos.net");
 
     private final long time;
     private final TopologyGraph graph;

@@ -74,7 +74,7 @@ public class DefaultTopologyProvider extends AbstractProvider
      * Creates a provider with the supplier identifier.
      */
     public DefaultTopologyProvider() {
-        super(new ProviderId("org.onlab.onos.provider.topology"));
+        super(new ProviderId("core", "org.onlab.onos.provider.topology"));
     }
 
     @Activate

@@ -45,7 +45,7 @@ public class SimplePathManager implements PathService {
 
     private static final String ELEMENT_ID_NULL = "Element ID cannot be null";
 
-    private static final ProviderId PID = new ProviderId("org.onlab.onos.core");
+    private static final ProviderId PID = new ProviderId("core", "org.onlab.onos.core");
     private static final PortNumber P0 = PortNumber.portNumber(0);
 
     private static final EdgeLink NOT_HOST = new NotHost();

@@ -38,7 +38,7 @@ import static org.onlab.onos.net.device.DeviceEvent.Type.*;
  */
 public class SimpleDeviceManagerTest {
 
-    private static final ProviderId PID = new ProviderId("foo");
+    private static final ProviderId PID = new ProviderId("of", "foo");
     private static final DeviceId DID1 = deviceId("of:foo");
     private static final DeviceId DID2 = deviceId("of:bar");
     private static final String MFR = "whitebox";

@@ -42,7 +42,7 @@ import static org.onlab.onos.net.host.HostEvent.Type.*;
  */
 public class SimpleHostManagerTest {
 
-    private static final ProviderId PID = new ProviderId("foo");
+    private static final ProviderId PID = new ProviderId("of", "foo");
 
     private static final VlanId VLAN1 = VlanId.vlanId((short) 1);
     private static final VlanId VLAN2 = VlanId.vlanId((short) 2);

@@ -40,7 +40,7 @@ import static org.onlab.onos.net.link.LinkEvent.Type.*;
  */
 public class SimpleLinkManagerTest {
 
-    private static final ProviderId PID = new ProviderId("foo");
+    private static final ProviderId PID = new ProviderId("of", "foo");
     private static final DeviceId DID1 = deviceId("of:foo");
     private static final DeviceId DID2 = deviceId("of:bar");
     private static final DeviceId DID3 = deviceId("of:goo");

@@ -29,7 +29,7 @@ import static org.onlab.onos.net.trivial.topology.impl.SimpleTopologyManagerTest
  */
 public class DefaultTopologyTest {
 
-    public static final ProviderId PID = new ProviderId("foo.bar");
+    public static final ProviderId PID = new ProviderId("of", "foo.bar");
 
     public static final DeviceId D1 = deviceId("of:1");
     public static final DeviceId D2 = deviceId("of:2");

@@ -43,7 +43,7 @@ import static org.onlab.onos.net.topology.TopologyEvent.Type.TOPOLOGY_CHANGED;
  */
 public class SimpleTopologyManagerTest {
 
-    private static final ProviderId PID = new ProviderId("foo");
+    private static final ProviderId PID = new ProviderId("of", "foo");
 
     private SimpleTopologyManager mgr;
 

@@ -60,7 +60,7 @@ public class OpenFlowDeviceProvider extends AbstractProvider implements DevicePr
      * Creates an OpenFlow device provider.
      */
     public OpenFlowDeviceProvider() {
-        super(new ProviderId("org.onlab.onos.provider.openflow"));
+        super(new ProviderId("of", "org.onlab.onos.provider.openflow"));
     }
 
     @Activate

@@ -57,7 +57,7 @@ public class OpenFlowRuleProvider extends AbstractProvider implements FlowRulePr
      * Creates an OpenFlow host provider.
      */
     public OpenFlowRuleProvider() {
-        super(new ProviderId("org.onlab.onos.provider.openflow"));
+        super(new ProviderId("of", "org.onlab.onos.provider.openflow"));
     }
 
     @Activate

@@ -61,7 +61,7 @@ public class OpenFlowHostProvider extends AbstractProvider implements HostProvid
      * Creates an OpenFlow host provider.
      */
     public OpenFlowHostProvider() {
-        super(new ProviderId("org.onlab.onos.provider.openflow"));
+        super(new ProviderId("of", "org.onlab.onos.provider.openflow"));
     }
 
     @Activate

@@ -55,7 +55,7 @@ public class OpenFlowLinkProvider extends AbstractProvider implements LinkProvid
      * Creates an OpenFlow link provider.
      */
     public OpenFlowLinkProvider() {
-        super(new ProviderId("org.onlab.onos.provider.openflow"));
+        super(new ProviderId("of", "org.onlab.onos.provider.openflow"));
     }
 
     @Activate

@@ -48,7 +48,7 @@ public class OpenFlowPacketProvider extends AbstractProvider implements PacketPr
      * Creates an OpenFlow link provider.
      */
     public OpenFlowPacketProvider() {
-        super(new ProviderId("org.onlab.onos.provider.openflow"));
+        super(new ProviderId("of", "org.onlab.onos.provider.openflow"));
     }
 
     @Activate

@@ -32,18 +32,31 @@ cp -r $ONOS_ROOT/tools/package/wrapper/* $KARAF_DIST
 mkdir -p $KARAF_DIST/system/org/onlab 
 cp -r $M2_REPO/org/onlab $KARAF_DIST/system/org/
 
+# Wrapper & Cellar Patching ----------------------------------------------------
+
+# Patch the Apache Karaf distribution file to add Cellar features repository
+perl -pi.old -e "s|^(featuresRepositories=.*)|\1,mvn:org.apache.karaf.cellar/apache-karaf-cellar/3.0.0/xml/features|" \
+    $ONOS_STAGE/$KARAF_DIST/etc/org.apache.karaf.features.cfg 
+
+# Patch the Apache Karaf distribution file to load ONOS features
+perl -pi.old -e 's|^(featuresBoot=.*)|\1,wrapper,cellar|' \
+    $ONOS_STAGE/$KARAF_DIST/etc/org.apache.karaf.features.cfg 
+
+# ONOS Patching ----------------------------------------------------------------
+
 # Patch the Apache Karaf distribution file to add ONOS features repository
 perl -pi.old -e "s|^(featuresRepositories=.*)|\1,mvn:org.onlab.onos/onos-features/$ONOS_VERSION/xml/features|" \
     $ONOS_STAGE/$KARAF_DIST/etc/org.apache.karaf.features.cfg 
 
 # Patch the Apache Karaf distribution file to load ONOS features
-perl -pi.old -e 's|^(featuresBoot=.*)|\1,wrapper,onos-api,onos-core,onos-cli,onos-rest,onos-gui,onos-openflow,onos-app-tvue|' \
+perl -pi.old -e 's|^(featuresBoot=.*)|\1,onos-api,onos-core,onos-cli,onos-rest,onos-gui,onos-openflow,onos-app-tvue|' \
     $ONOS_STAGE/$KARAF_DIST/etc/org.apache.karaf.features.cfg 
 
 # Patch the Apache Karaf distribution with ONOS branding bundle
 cp $M2_REPO/org/onlab/onos/onos-branding/$ONOS_VERSION/onos-branding-*.jar \
     $ONOS_STAGE/$KARAF_DIST/lib
 
+
 # Now package up the ONOS tar file
 cd $ONOS_STAGE_ROOT
 COPYFILE_DISABLE=1 tar zcf $ONOS_TAR $ONOS_BITS