Fix checkstyle whitespace issues - WHITESPACE ONLY

Change-Id: Ic205c1afd639c6008d61d9de95cb764eeb6238ca
diff --git a/src/main/java/net/onrc/onos/core/topology/web/DatastoreLinksResource.java b/src/main/java/net/onrc/onos/core/topology/web/DatastoreLinksResource.java
index 4837055..0f3b85c 100644
--- a/src/main/java/net/onrc/onos/core/topology/web/DatastoreLinksResource.java
+++ b/src/main/java/net/onrc/onos/core/topology/web/DatastoreLinksResource.java
@@ -7,8 +7,8 @@
 
 public class DatastoreLinksResource extends ServerResource {
 
-	@Get("json")
-	public Iterable<KVLink> retrieve() {
-		return KVLink.getAllLinks();
-	}
+    @Get("json")
+    public Iterable<KVLink> retrieve() {
+        return KVLink.getAllLinks();
+    }
 }
diff --git a/src/main/java/net/onrc/onos/core/topology/web/DatastorePortsResource.java b/src/main/java/net/onrc/onos/core/topology/web/DatastorePortsResource.java
index 46eaf1a..2ffb476 100644
--- a/src/main/java/net/onrc/onos/core/topology/web/DatastorePortsResource.java
+++ b/src/main/java/net/onrc/onos/core/topology/web/DatastorePortsResource.java
@@ -7,8 +7,8 @@
 
 public class DatastorePortsResource extends ServerResource {
 
-	@Get("json")
-	public Iterable<KVPort> retrieve() {
-		return KVPort.getAllPorts();
-	}
+    @Get("json")
+    public Iterable<KVPort> retrieve() {
+        return KVPort.getAllPorts();
+    }
 }
diff --git a/src/main/java/net/onrc/onos/core/topology/web/DatastoreSwitchesResource.java b/src/main/java/net/onrc/onos/core/topology/web/DatastoreSwitchesResource.java
index fe2cfcd..9459764 100644
--- a/src/main/java/net/onrc/onos/core/topology/web/DatastoreSwitchesResource.java
+++ b/src/main/java/net/onrc/onos/core/topology/web/DatastoreSwitchesResource.java
@@ -6,10 +6,10 @@
 import org.restlet.resource.ServerResource;
 
 public class DatastoreSwitchesResource extends ServerResource {
-	
-	@Get("json")
-	public Iterable<KVSwitch> retrieve() {
-		return KVSwitch.getAllSwitches();
-	}
+
+    @Get("json")
+    public Iterable<KVSwitch> retrieve() {
+        return KVSwitch.getAllSwitches();
+    }
 
 }
diff --git a/src/main/java/net/onrc/onos/core/topology/web/NetworkGraphLinksResource.java b/src/main/java/net/onrc/onos/core/topology/web/NetworkGraphLinksResource.java
index 5886aa5..8d4bc93 100644
--- a/src/main/java/net/onrc/onos/core/topology/web/NetworkGraphLinksResource.java
+++ b/src/main/java/net/onrc/onos/core/topology/web/NetworkGraphLinksResource.java
@@ -15,29 +15,29 @@
 import org.slf4j.LoggerFactory;
 
 public class NetworkGraphLinksResource extends ServerResource {
-	
-	private static final Logger log = LoggerFactory.getLogger(NetworkGraphLinksResource.class);
 
-	@Get("json")
-	public String retrieve() {
-		INetworkGraphService networkGraphService = (INetworkGraphService) getContext().getAttributes().
-				get(INetworkGraphService.class.getCanonicalName());
-		
-		NetworkGraph graph = networkGraphService.getNetworkGraph();
+    private static final Logger log = LoggerFactory.getLogger(NetworkGraphLinksResource.class);
 
-		ObjectMapper mapper = new ObjectMapper();
-		SimpleModule module = new SimpleModule("module", new Version(1, 0, 0, null));
-		module.addSerializer(new LinkSerializer());
-		mapper.registerModule(module);
-		
-		try {
-			graph.acquireReadLock();
-			return mapper.writeValueAsString(graph.getLinks());
-		} catch (IOException e) {
-			log.error("Error writing link list to JSON", e);
-			return "";
-		} finally {
-		    graph.releaseReadLock();
-		}
-	}
+    @Get("json")
+    public String retrieve() {
+        INetworkGraphService networkGraphService = (INetworkGraphService) getContext().getAttributes().
+                get(INetworkGraphService.class.getCanonicalName());
+
+        NetworkGraph graph = networkGraphService.getNetworkGraph();
+
+        ObjectMapper mapper = new ObjectMapper();
+        SimpleModule module = new SimpleModule("module", new Version(1, 0, 0, null));
+        module.addSerializer(new LinkSerializer());
+        mapper.registerModule(module);
+
+        try {
+            graph.acquireReadLock();
+            return mapper.writeValueAsString(graph.getLinks());
+        } catch (IOException e) {
+            log.error("Error writing link list to JSON", e);
+            return "";
+        } finally {
+            graph.releaseReadLock();
+        }
+    }
 }
diff --git a/src/main/java/net/onrc/onos/core/topology/web/NetworkGraphShortestPathResource.java b/src/main/java/net/onrc/onos/core/topology/web/NetworkGraphShortestPathResource.java
index 1d4164b..6650efc 100644
--- a/src/main/java/net/onrc/onos/core/topology/web/NetworkGraphShortestPathResource.java
+++ b/src/main/java/net/onrc/onos/core/topology/web/NetworkGraphShortestPathResource.java
@@ -28,54 +28,54 @@
 
     @Get("json")
     public String retrieve() {
-	INetworkGraphService networkGraphService =
-	    (INetworkGraphService)getContext().getAttributes().
-	    get(INetworkGraphService.class.getCanonicalName());
+        INetworkGraphService networkGraphService =
+                (INetworkGraphService) getContext().getAttributes().
+                        get(INetworkGraphService.class.getCanonicalName());
 
-	NetworkGraph graph = networkGraphService.getNetworkGraph();
+        NetworkGraph graph = networkGraphService.getNetworkGraph();
 
-	ObjectMapper mapper = new ObjectMapper();
-	SimpleModule module = new SimpleModule("module", new Version(1, 0, 0, null));
-	module.addSerializer(new LinkSerializer());
-	mapper.registerModule(module);
+        ObjectMapper mapper = new ObjectMapper();
+        SimpleModule module = new SimpleModule("module", new Version(1, 0, 0, null));
+        module.addSerializer(new LinkSerializer());
+        mapper.registerModule(module);
 
-	//
-	// Fetch the attributes
-	//
-	String srcDpidStr = (String)getRequestAttributes().get("src-dpid");
-	String dstDpidStr = (String)getRequestAttributes().get("dst-dpid");
-	Dpid srcDpid = new Dpid(srcDpidStr);
-	Dpid dstDpid = new Dpid(dstDpidStr);
-	log.debug("Getting Shortest Path {}--{}", srcDpidStr, dstDpidStr);
+        //
+        // Fetch the attributes
+        //
+        String srcDpidStr = (String) getRequestAttributes().get("src-dpid");
+        String dstDpidStr = (String) getRequestAttributes().get("dst-dpid");
+        Dpid srcDpid = new Dpid(srcDpidStr);
+        Dpid dstDpid = new Dpid(dstDpidStr);
+        log.debug("Getting Shortest Path {}--{}", srcDpidStr, dstDpidStr);
 
-	//
-	// Do the Shortest Path computation and return the result: list of
-	// links.
-	//
-	try {
-	    graph.acquireReadLock();
-	    Switch srcSwitch = graph.getSwitch(srcDpid.value());
-	    Switch dstSwitch = graph.getSwitch(dstDpid.value());
-	    if ((srcSwitch == null) || (dstSwitch == null))
-		return "";
-	    ConstrainedBFSTree bfsTree = new ConstrainedBFSTree(srcSwitch);
-	    Path path = bfsTree.getPath(dstSwitch);
-	    List<Link> links = new LinkedList<>();
-	    for (LinkEvent linkEvent : path) {
-		Link link = graph.getLink(linkEvent.getSrc().getDpid(),
-					  linkEvent.getSrc().getNumber(),
-					  linkEvent.getDst().getDpid(),
-					  linkEvent.getDst().getNumber());
-		if (link == null)
-		    return "";
-		links.add(link);
-	    }
-	    return mapper.writeValueAsString(links);
-	} catch (IOException e) {
-	    log.error("Error writing Shortest Path to JSON", e);
-	    return "";
-	} finally {
-	    graph.releaseReadLock();
-	}
+        //
+        // Do the Shortest Path computation and return the result: list of
+        // links.
+        //
+        try {
+            graph.acquireReadLock();
+            Switch srcSwitch = graph.getSwitch(srcDpid.value());
+            Switch dstSwitch = graph.getSwitch(dstDpid.value());
+            if ((srcSwitch == null) || (dstSwitch == null))
+                return "";
+            ConstrainedBFSTree bfsTree = new ConstrainedBFSTree(srcSwitch);
+            Path path = bfsTree.getPath(dstSwitch);
+            List<Link> links = new LinkedList<>();
+            for (LinkEvent linkEvent : path) {
+                Link link = graph.getLink(linkEvent.getSrc().getDpid(),
+                        linkEvent.getSrc().getNumber(),
+                        linkEvent.getDst().getDpid(),
+                        linkEvent.getDst().getNumber());
+                if (link == null)
+                    return "";
+                links.add(link);
+            }
+            return mapper.writeValueAsString(links);
+        } catch (IOException e) {
+            log.error("Error writing Shortest Path to JSON", e);
+            return "";
+        } finally {
+            graph.releaseReadLock();
+        }
     }
 }
diff --git a/src/main/java/net/onrc/onos/core/topology/web/NetworkGraphSwitchesResource.java b/src/main/java/net/onrc/onos/core/topology/web/NetworkGraphSwitchesResource.java
index 059771f..3a053e5 100644
--- a/src/main/java/net/onrc/onos/core/topology/web/NetworkGraphSwitchesResource.java
+++ b/src/main/java/net/onrc/onos/core/topology/web/NetworkGraphSwitchesResource.java
@@ -16,30 +16,30 @@
 import org.slf4j.LoggerFactory;
 
 public class NetworkGraphSwitchesResource extends ServerResource {
-	
-	private static final Logger log = LoggerFactory.getLogger(NetworkGraphSwitchesResource.class);
 
-	@Get("json")
-	public String retrieve() {
-		INetworkGraphService networkGraphService = (INetworkGraphService) getContext().getAttributes().
-				get(INetworkGraphService.class.getCanonicalName());
-		
-		NetworkGraph graph = networkGraphService.getNetworkGraph();
-		
-		ObjectMapper mapper = new ObjectMapper();
-		SimpleModule module = new SimpleModule("module", new Version(1, 0, 0, null));
-		module.addSerializer(new SwitchSerializer());
-		module.addSerializer(new PortSerializer());
-		mapper.registerModule(module);
-		
-		try {
-			graph.acquireReadLock();
-			return mapper.writeValueAsString(graph.getSwitches());
-		} catch (IOException e) {
-			log.error("Error writing switch list to JSON", e);
-			return "";
-		} finally {
-			graph.releaseReadLock();
-		}
-	}
+    private static final Logger log = LoggerFactory.getLogger(NetworkGraphSwitchesResource.class);
+
+    @Get("json")
+    public String retrieve() {
+        INetworkGraphService networkGraphService = (INetworkGraphService) getContext().getAttributes().
+                get(INetworkGraphService.class.getCanonicalName());
+
+        NetworkGraph graph = networkGraphService.getNetworkGraph();
+
+        ObjectMapper mapper = new ObjectMapper();
+        SimpleModule module = new SimpleModule("module", new Version(1, 0, 0, null));
+        module.addSerializer(new SwitchSerializer());
+        module.addSerializer(new PortSerializer());
+        mapper.registerModule(module);
+
+        try {
+            graph.acquireReadLock();
+            return mapper.writeValueAsString(graph.getSwitches());
+        } catch (IOException e) {
+            log.error("Error writing switch list to JSON", e);
+            return "";
+        } finally {
+            graph.releaseReadLock();
+        }
+    }
 }
diff --git a/src/main/java/net/onrc/onos/core/topology/web/NetworkGraphWebRoutable.java b/src/main/java/net/onrc/onos/core/topology/web/NetworkGraphWebRoutable.java
index c6791e5..8f32f8a 100644
--- a/src/main/java/net/onrc/onos/core/topology/web/NetworkGraphWebRoutable.java
+++ b/src/main/java/net/onrc/onos/core/topology/web/NetworkGraphWebRoutable.java
@@ -8,33 +8,33 @@
 
 public class NetworkGraphWebRoutable implements RestletRoutable {
 
-	@Override
-	public Restlet getRestlet(Context context) {
-		Router router = new Router(context);
-		// leaving old path there for compatibility
-		router.attach("/rc/switches/json", DatastoreSwitchesResource.class);
-		router.attach("/rc/links/json", DatastoreLinksResource.class);
-		router.attach("/rc/ports/json", DatastorePortsResource.class);
+    @Override
+    public Restlet getRestlet(Context context) {
+        Router router = new Router(context);
+        // leaving old path there for compatibility
+        router.attach("/rc/switches/json", DatastoreSwitchesResource.class);
+        router.attach("/rc/links/json", DatastoreLinksResource.class);
+        router.attach("/rc/ports/json", DatastorePortsResource.class);
 
-                // debug API to dump datastore content
-                router.attach("/ds/switches/json", DatastoreSwitchesResource.class);
-                router.attach("/ds/links/json", DatastoreLinksResource.class);
-                router.attach("/ds/ports/json", DatastorePortsResource.class);
+        // debug API to dump datastore content
+        router.attach("/ds/switches/json", DatastoreSwitchesResource.class);
+        router.attach("/ds/links/json", DatastoreLinksResource.class);
+        router.attach("/ds/ports/json", DatastorePortsResource.class);
 
-		router.attach("/ng/switches/json", NetworkGraphSwitchesResource.class);
-		router.attach("/ng/links/json", NetworkGraphLinksResource.class);
-		router.attach("/ng/shortest-path/{src-dpid}/{dst-dpid}/json", NetworkGraphShortestPathResource.class);
-		
-		// Old URLs for compatibility
-		router.attach("/topology/switches/json", NetworkGraphSwitchesResource.class);
-		router.attach("/topology/links/json", NetworkGraphLinksResource.class);
-		
-		return router;
-	}
+        router.attach("/ng/switches/json", NetworkGraphSwitchesResource.class);
+        router.attach("/ng/links/json", NetworkGraphLinksResource.class);
+        router.attach("/ng/shortest-path/{src-dpid}/{dst-dpid}/json", NetworkGraphShortestPathResource.class);
 
-	@Override
-	public String basePath() {
-		return "/wm/onos";
-	}
+        // Old URLs for compatibility
+        router.attach("/topology/switches/json", NetworkGraphSwitchesResource.class);
+        router.attach("/topology/links/json", NetworkGraphLinksResource.class);
+
+        return router;
+    }
+
+    @Override
+    public String basePath() {
+        return "/wm/onos";
+    }
 
 }