src/main/java/net/pterodactylus/fcp/quelaton/GetNodeCommandImpl.java

   1 package net.pterodactylus.fcp.quelaton;
   2
   3 import java.io.IOException;
   4 import java.util.concurrent.ExecutorService;
   5 import java.util.concurrent.atomic.AtomicBoolean;
   6 import java.util.concurrent.atomic.AtomicReference;
   7
   8 import net.pterodactylus.fcp.GetNode;
   9 import net.pterodactylus.fcp.NodeData;
  10
  11 import com.google.common.util.concurrent.ListenableFuture;
  12 import com.google.common.util.concurrent.ListeningExecutorService;
  13 import com.google.common.util.concurrent.MoreExecutors;
  14
  15 /**
  16  * Default {@link GetNodeCommandImpl} implementation based on {@link FcpReplySequence}.
  17  *
  18  * @author <a href="mailto:bombe@freenetproject.org">David ‘Bombe’ Roden</a>
  19  */
  20 public class GetNodeCommandImpl implements GetNodeCommand {
  21
  22         private final ListeningExecutorService threadPool;
  23         private final ConnectionSupplier connectionSupplier;
  24         private final AtomicBoolean giveOpennetRef = new AtomicBoolean(false);
  25         private final AtomicBoolean includePrivate = new AtomicBoolean(false);
  26
  27         public GetNodeCommandImpl(ExecutorService threadPool, ConnectionSupplier connectionSupplier) {
  28                 this.threadPool = MoreExecutors.listeningDecorator(threadPool);
  29                 this.connectionSupplier = connectionSupplier;
  30         }
  31
  32         @Override
  33         public GetNodeCommand opennetRef() {
  34                 giveOpennetRef.set(true);
  35                 return this;
  36         }
  37
  38         @Override
  39         public GetNodeCommand includePrivate() {
  40                 includePrivate.set(true);
  41                 return this;
  42         }
  43
  44         @Override
  45         public ListenableFuture<NodeData> execute() {
  46                 GetNode getNode = new GetNode(new RandomIdentifierGenerator().generate(), giveOpennetRef.get(),
  47                         includePrivate.get(), false);
  48                 return threadPool.submit(() -> new GetNodeReplySequence().send(getNode).get());
  49         }
  50
  51         private class GetNodeReplySequence extends FcpReplySequence<NodeData> {
  52
  53                 private final AtomicReference<NodeData> nodeData = new AtomicReference<>();
  54
  55                 public GetNodeReplySequence() throws IOException {
  56                         super(threadPool, connectionSupplier.get());
  57                 }
  58
  59                 @Override
  60                 protected boolean isFinished() {
  61                         return nodeData.get() != null;
  62                 }
  63
  64                 @Override
  65                 protected NodeData getResult() {
  66                         return nodeData.get();
  67                 }
  68
  69                 @Override
  70                 protected void consumeNodeData(NodeData nodeData) {
  71                         this.nodeData.set(nodeData);
  72                 }
  73
  74         }
  75
  76 }