Fixed issue where component configuration would not propagate on node restart.

Change-Id: I431ce444025cc9a8021dd68fa23c6e8c29fa6c19
diff --git a/core/store/dist/src/main/java/org/onosproject/store/cfg/DistributedComponentConfigStore.java b/core/store/dist/src/main/java/org/onosproject/store/cfg/DistributedComponentConfigStore.java
index 5a82a8a..85e826f 100644
--- a/core/store/dist/src/main/java/org/onosproject/store/cfg/DistributedComponentConfigStore.java
+++ b/core/store/dist/src/main/java/org/onosproject/store/cfg/DistributedComponentConfigStore.java
@@ -15,6 +15,7 @@
  */
 package org.onosproject.store.cfg;
 
+import com.google.common.collect.ImmutableSet;
 import org.apache.felix.scr.annotations.Activate;
 import org.apache.felix.scr.annotations.Component;
 import org.apache.felix.scr.annotations.Deactivate;
@@ -31,8 +32,12 @@
 import org.onosproject.store.service.MapEventListener;
 import org.onosproject.store.service.Serializer;
 import org.onosproject.store.service.StorageService;
+import org.onosproject.store.service.Versioned;
 import org.slf4j.Logger;
 
+import java.util.Objects;
+import java.util.Set;
+
 import static org.onosproject.cfg.ComponentConfigEvent.Type.PROPERTY_SET;
 import static org.onosproject.cfg.ComponentConfigEvent.Type.PROPERTY_UNSET;
 import static org.onosproject.store.service.MapEvent.Type.INSERT;
@@ -59,7 +64,7 @@
     @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
     protected StorageService storageService;
 
-    InternalPropertiesListener propertiesListener = new InternalPropertiesListener();
+    private InternalPropertiesListener propertiesListener = new InternalPropertiesListener();
 
     @Activate
     public void activate() {
@@ -90,6 +95,22 @@
         properties.remove(key(componentName, name));
     }
 
+    @Override
+    public Set<String> getProperties(String componentName) {
+        ImmutableSet.Builder<String> names = ImmutableSet.builder();
+        properties.keySet().stream()
+                .filter((String k) -> Objects.equals(componentName, k.substring(0, k.indexOf(SEP))))
+                .map((String k) -> k.substring(k.indexOf(SEP) + 1))
+                .forEach(names::add);
+        return names.build();
+    }
+
+    @Override
+    public String getProperty(String componentName, String name) {
+        Versioned<String> v = properties.get(key(componentName, name));
+        return v != null ? v.value() : null;
+    }
+
     /**
      * Listener to component configuration properties distributed map changes.
      */