66 lines
1.8 KiB
Java
66 lines
1.8 KiB
Java
package cy.agorise.graphenej.network;
|
|
|
|
import android.util.Log;
|
|
|
|
import java.util.ArrayList;
|
|
import java.util.Arrays;
|
|
import java.util.Collections;
|
|
import java.util.List;
|
|
import java.util.PriorityQueue;
|
|
|
|
public class LatencyNodeProvider implements NodeProvider {
|
|
private final String TAG = this.getClass().getName();
|
|
private PriorityQueue<FullNode> mFullNodeHeap;
|
|
|
|
public LatencyNodeProvider(){
|
|
mFullNodeHeap = new PriorityQueue<>();
|
|
}
|
|
|
|
@Override
|
|
public FullNode getBestNode() {
|
|
return mFullNodeHeap.peek();
|
|
}
|
|
|
|
@Override
|
|
public void addNode(FullNode fullNode) {
|
|
mFullNodeHeap.add(fullNode);
|
|
}
|
|
|
|
@Override
|
|
public boolean updateNode(FullNode fullNode) {
|
|
mFullNodeHeap.remove(fullNode);
|
|
return mFullNodeHeap.offer(fullNode);
|
|
}
|
|
|
|
/**
|
|
* Updates an existing node with the new latency value.
|
|
*
|
|
* @param fullNode Existing full node instance
|
|
* @param latency New latency measurement
|
|
* @return True if the node priority was updated successfully
|
|
*/
|
|
public boolean updateNode(FullNode fullNode, int latency){
|
|
if(mFullNodeHeap.remove(fullNode)){
|
|
fullNode.addLatencyValue(latency);
|
|
return mFullNodeHeap.add(fullNode);
|
|
}else{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
@Override
|
|
public List<FullNode> getSortedNodes() {
|
|
FullNode[] nodeArray = mFullNodeHeap.toArray(new FullNode[mFullNodeHeap.size()]);
|
|
ArrayList<FullNode> nodeList = new ArrayList<>();
|
|
for(FullNode fullNode : nodeList){
|
|
if(fullNode != null){
|
|
nodeList.add(fullNode);
|
|
}else{
|
|
Log.d(TAG,"Found a null node in getSortedNodes");
|
|
}
|
|
}
|
|
Collections.sort(nodeList);
|
|
return Arrays.asList(nodeArray);
|
|
}
|
|
}
|