src/main/java/net/pterodactylus/fcp/quelaton/UnsubscribeUskCommandImpl.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.function.Supplier;
   7
   8 import net.pterodactylus.fcp.UnsubscribeUSK;
   9
  10 import com.google.common.util.concurrent.ListenableFuture;
  11 import com.google.common.util.concurrent.ListeningExecutorService;
  12 import com.google.common.util.concurrent.MoreExecutors;
  13
  14 /**
  15  * Default {@link UnsubscribeUskCommand} implementation based on {@link FcpDialog}.
  16  *
  17  * @author <a href="mailto:bombe@freenetproject.org">David ‘Bombe’ Roden</a>
  18  */
  19 public class UnsubscribeUskCommandImpl implements UnsubscribeUskCommand {
  20
  21         private final ListeningExecutorService threadPool;
  22         private final ConnectionSupplier connectionSupplier;
  23         private final UnsubscribeUSK unsubscribeUSK;
  24
  25         public UnsubscribeUskCommandImpl(ExecutorService threadPool, ConnectionSupplier connectionSupplier, Supplier<String> identifierGenerator) {
  26                 this.threadPool = MoreExecutors.listeningDecorator(threadPool);
  27                 this.connectionSupplier = connectionSupplier;
  28                 unsubscribeUSK = new UnsubscribeUSK(identifierGenerator.get());
  29         }
  30
  31         @Override
  32         public Executable<Void> identifier(String identifier) {
  33                 return this::execute;
  34         }
  35
  36         private ListenableFuture<Void> execute() {
  37                 return threadPool.submit(this::executeDialog);
  38         }
  39
  40         private Void executeDialog() throws IOException, ExecutionException, InterruptedException {
  41                 try (UnsubscribeUskDialog unsubscribeUskDialog = new UnsubscribeUskDialog()) {
  42                         return unsubscribeUskDialog.send(unsubscribeUSK).get();
  43                 }
  44         }
  45
  46         private class UnsubscribeUskDialog extends FcpDialog<Void> {
  47
  48                 public UnsubscribeUskDialog() throws IOException {
  49                         super(threadPool, connectionSupplier.get(), null);
  50                         finish();
  51                 }
  52
  53         }
  54
  55 }