package org.opendaylight.controller.protocol_plugin.openflow.internal;
+import java.util.Collections;
import java.util.Dictionary;
import java.util.List;
import java.util.Set;
public List<FlowOnNode> readAllFlow(Node node, boolean cached) {
if (!node.getType().equals(NodeIDType.OPENFLOW)) {
logger.error("Invalid node type");
- return null;
+ return Collections.emptyList();
}
if (!connectionOutService.isLocal(node)) {
logger.debug("This Controller is not the master for the node : " + node);
- return null;
+ return Collections.emptyList();
}
return filter.readAllFlow(containerName, node, cached);
boolean cached) {
if (!node.getType().equals(NodeIDType.OPENFLOW)) {
logger.error("Invalid node type");
- return null;
+ return Collections.emptyList();
}
if (!connectionOutService.isLocal(node)) {
logger.debug("This Controller is not the master for node : " + node);
- return null;
+ return Collections.emptyList();
}
return filter.readAllNodeConnector(containerName, node, cached);
public List<NodeTableStatistics> readAllNodeTable(Node node, boolean cached) {
if (!node.getType().equals(NodeIDType.OPENFLOW)) {
logger.error("Invalid node type");
- return null;
+ return Collections.emptyList();
}
if (!connectionOutService.isLocal(node)) {
logger.debug("This Controller is not the master for node : " + node);
- return null;
+ return Collections.emptyList();
}
return filter.readAllNodeTable(containerName, node, cached);