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

   1 package net.pterodactylus.fcp.quelaton;
   2
   3 import java.io.IOException;
   4 import java.util.concurrent.ExecutionException;
   5 import java.util.concurrent.ExecutorService;
   6 import java.util.concurrent.atomic.AtomicReference;
   7
   8 import net.pterodactylus.fcp.FcpKeyPair;
   9 import net.pterodactylus.fcp.GenerateSSK;
  10 import net.pterodactylus.fcp.SSKKeypair;
  11
  12 import com.google.common.util.concurrent.ListenableFuture;
  13 import com.google.common.util.concurrent.ListeningExecutorService;
  14 import com.google.common.util.concurrent.MoreExecutors;
  15
  16 /**
  17  * Implementation of the {@link GenerateKeypairCommand}.
  18  *
  19  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  20  */
  21 class GenerateKeypairCommandImpl implements GenerateKeypairCommand {
  22
  23         private final ListeningExecutorService threadPool;
  24         private final ConnectionSupplier connectionSupplier;
  25
  26         GenerateKeypairCommandImpl(ExecutorService threadPool, ConnectionSupplier connectionSupplier) {
  27                 this.threadPool = MoreExecutors.listeningDecorator(threadPool);
  28                 this.connectionSupplier = connectionSupplier;
  29         }
  30
  31         @Override
  32         public ListenableFuture<FcpKeyPair> execute() {
  33                 return threadPool.submit(this::executeDialog);
  34         }
  35
  36         private FcpKeyPair executeDialog() throws InterruptedException, ExecutionException, IOException {
  37                 try (FcpKeyPairDialog fcpKeyPairDialog = new FcpKeyPairDialog()) {
  38                         return fcpKeyPairDialog.send(new GenerateSSK()).get();
  39                 }
  40         }
  41
  42         private class FcpKeyPairDialog extends FcpDialog<FcpKeyPair> {
  43
  44                 private AtomicReference<FcpKeyPair> keyPair = new AtomicReference<>();
  45
  46                 public FcpKeyPairDialog() throws IOException {
  47                         super(GenerateKeypairCommandImpl.this.threadPool, GenerateKeypairCommandImpl.this.connectionSupplier.get());
  48                 }
  49
  50                 @Override
  51                 protected boolean isFinished() {
  52                         return keyPair.get() != null;
  53                 }
  54
  55                 @Override
  56                 protected FcpKeyPair getResult() {
  57                         return keyPair.get();
  58                 }
  59
  60                 @Override
  61                 protected void consumeSSKKeypair(SSKKeypair sskKeypair) {
  62                         keyPair.set(new FcpKeyPair(sskKeypair.getRequestURI(), sskKeypair.getInsertURI()));
  63                 }
  64
  65         }
  66
  67 }