Add config validation for vRouter and PIM configs

Change-Id: I97ddf4f745a19df6998b15ae47ebde5aa5f46238

@@ -112,4 +112,20 @@ public class PimInterfaceConfig extends Config<ConnectPoint> {
         }
         return Optional.of(Short.parseShort(node.path(OVERRIDE_INTERVAL).asText()));
     }
+
+    @Override
+    public boolean isValid() {
+        if (!hasOnlyFields(INTERFACE_NAME, ENABLED, HELLO_INTERVAL, HOLD_TIME,
+                PRIORITY, PROPAGATION_DELAY, OVERRIDE_INTERVAL)) {
+            return false;
+        }
+
+        return isString(INTERFACE_NAME, FieldPresence.MANDATORY) &&
+                isBoolean(ENABLED, FieldPresence.MANDATORY) &&
+                isIntegralNumber(HELLO_INTERVAL, FieldPresence.OPTIONAL) &&
+                isIntegralNumber(HOLD_TIME, FieldPresence.OPTIONAL) &&
+                isIntegralNumber(PRIORITY, FieldPresence.OPTIONAL) &&
+                isIntegralNumber(PROPAGATION_DELAY, FieldPresence.OPTIONAL) &&
+                isIntegralNumber(OVERRIDE_INTERVAL, FieldPresence.OPTIONAL);
+    }
 }

@@ -82,4 +82,19 @@ public class RouterConfig extends Config<ApplicationId> {
         return interfaces;
     }
 
+    @Override
+    public boolean isValid() {
+        if (!hasOnlyFields(INTERFACES, CP_CONNECT_POINT, OSPF_ENABLED, PIM_ENABLED)) {
+            return false;
+        }
+
+        JsonNode intfNode = object.path(INTERFACES);
+        if (!intfNode.isMissingNode() && !intfNode.isArray()) {
+            return false;
+        }
+
+        return isConnectPoint(CP_CONNECT_POINT, FieldPresence.MANDATORY) &&
+                isBoolean(OSPF_ENABLED, FieldPresence.OPTIONAL) &&
+                isBoolean(PIM_ENABLED, FieldPresence.OPTIONAL);
+    }
 }

@@ -22,6 +22,7 @@ import com.fasterxml.jackson.databind.node.ObjectNode;
 import com.google.common.annotations.Beta;
 import com.google.common.collect.Lists;
 import com.google.common.collect.Sets;
+import org.onlab.packet.IpPrefix;
 import org.onlab.packet.MacAddress;
 import org.onlab.packet.VlanId;
 import org.onosproject.incubator.net.intf.Interface;
@@ -50,6 +51,31 @@ public class InterfaceConfig extends Config<ConnectPoint> {
     private static final String INTF_NULL_ERROR = "Interface cannot be null";
     private static final String INTF_NAME_ERROR = "Interface must have a valid name";
 
+    @Override
+    public boolean isValid() {
+        for (JsonNode node : array) {
+            if (!hasOnlyFields((ObjectNode) node, NAME, IPS, MAC, VLAN)) {
+                return false;
+            }
+
+            ObjectNode obj = (ObjectNode) node;
+
+            if (!(isString(obj, NAME, FieldPresence.OPTIONAL) &&
+                    isMacAddress(obj, MAC, FieldPresence.OPTIONAL) &&
+                    isIntegralNumber(obj, VLAN, FieldPresence.OPTIONAL, 0, VlanId.MAX_VLAN))) {
+                return false;
+            }
+
+
+            for (JsonNode ipNode : node.path(IPS)) {
+                if (!ipNode.isTextual() || IpPrefix.valueOf(ipNode.asText()) == null) {
+                    return false;
+                }
+            }
+        }
+        return true;
+    }
+
     /**
      * Retrieves all interfaces configured on this port.
      *