Renamed devicemanager, flowprogrammer, linkdiscovery and util packages

net.onrc.onos.ofcontroller.devicemanager.* => net.onrc.onos.core.devicemanager.*
net.onrc.onos.ofcontroller.flowprogrammer.* => net.onrc.onos.core.flowprogrammer.*
net.onrc.onos.ofcontroller.linkdiscovery.* => net.onrc.onos.core.linkdiscovery.*
net.onrc.onos.ofcontroller.util.* => net.onrc.onos.core.util.*

Change-Id: Iaa865af552e8fb3a589e73d006569ac79f5a0f08
diff --git a/src/main/java/net/onrc/onos/core/linkdiscovery/internal/EventHistoryTopologySwitch.java b/src/main/java/net/onrc/onos/core/linkdiscovery/internal/EventHistoryTopologySwitch.java
new file mode 100644
index 0000000..b659be7
--- /dev/null
+++ b/src/main/java/net/onrc/onos/core/linkdiscovery/internal/EventHistoryTopologySwitch.java
@@ -0,0 +1,43 @@
+package net.onrc.onos.core.linkdiscovery.internal;
+
+import net.floodlightcontroller.core.web.serializers.DPIDSerializer;
+import net.floodlightcontroller.core.web.serializers.IPv4Serializer;
+
+import org.codehaus.jackson.annotate.JsonProperty;
+import org.codehaus.jackson.map.annotate.JsonSerialize;
+
+/***
+ * Topology Switch event history related classes and members
+ * @author subrata
+ *
+ */
+public class EventHistoryTopologySwitch {
+    // The following fields are not stored as String to save memory
+    // They should be converted to appropriate human-readable strings by 
+    // the front end (e.g. in cli in Python)
+    public long     dpid;
+    public int  ipv4Addr;
+    public int    l4Port;
+    public String   reason;
+    
+    @JsonProperty("Switch")
+    @JsonSerialize(using=DPIDSerializer.class)
+    public long getDpid() {
+        return dpid;
+    }
+    @JsonProperty("IpAddr")
+    @JsonSerialize(using=IPv4Serializer.class)
+    public int getIpv4Addr() {
+        return ipv4Addr;
+    }
+    @JsonProperty("Port")
+    public int getL4Port() {
+        return l4Port;
+    }
+    @JsonProperty("Reason")
+    public String getReason() {
+        return reason;
+    }
+    
+    
+}