+package net.pterodactylus.fcp.quelaton;
+
+import java.io.IOException;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.atomic.AtomicBoolean;
+import java.util.concurrent.atomic.AtomicReference;
+
+import net.pterodactylus.fcp.PeerRemoved;
+import net.pterodactylus.fcp.RemovePeer;
+import net.pterodactylus.fcp.UnknownNodeIdentifier;
+
+import com.google.common.util.concurrent.ListenableFuture;
+import com.google.common.util.concurrent.ListeningExecutorService;
+import com.google.common.util.concurrent.MoreExecutors;
+
+/**
+ * Default {@link RemovePeerCommand} implementation based on {@link FcpDialog}.
+ *
+ * @author <a href="mailto:bombe@freenetproject.org">David ‘Bombe’ Roden</a>
+ */
+public class RemovePeerCommandImpl implements RemovePeerCommand {
+
+ private final ListeningExecutorService threadPool;
+ private final ConnectionSupplier connectionSupplier;
+ private final AtomicReference<String> nodeIdentifier = new AtomicReference<>();
+
+ public RemovePeerCommandImpl(ExecutorService threadPool, ConnectionSupplier connectionSupplier) {
+ this.threadPool = MoreExecutors.listeningDecorator(threadPool);
+ this.connectionSupplier = connectionSupplier;
+ }
+
+ @Override
+ public Executable<Boolean> byName(String name) {
+ nodeIdentifier.set(name);
+ return this::execute;
+ }
+
+ private ListenableFuture<Boolean> execute() {
+ return threadPool.submit(this::executeDialog);
+ }
+
+ private boolean executeDialog() throws IOException, ExecutionException, InterruptedException {
+ RemovePeer removePeer = new RemovePeer(new RandomIdentifierGenerator().generate(), nodeIdentifier.get());
+ try (RemovePeerDialog removePeerDialog = new RemovePeerDialog()) {
+ return removePeerDialog.send(removePeer).get();
+ }
+ }
+
+ private class RemovePeerDialog extends FcpDialog<Boolean> {
+
+ private final AtomicBoolean finished = new AtomicBoolean();
+ private final AtomicBoolean removed = new AtomicBoolean();
+
+ public RemovePeerDialog() throws IOException {
+ super(threadPool, connectionSupplier.get());
+ }
+
+ @Override
+ protected boolean isFinished() {
+ return finished.get() || removed.get();
+ }
+
+ @Override
+ protected Boolean getResult() {
+ return removed.get();
+ }
+
+ @Override
+ protected void consumePeerRemoved(PeerRemoved peerRemoved) {
+ removed.set(true);
+ }
+
+ @Override
+ protected void consumeUnknownNodeIdentifier(UnknownNodeIdentifier unknownNodeIdentifier) {
+ finished.set(true);
+ }
+
+ }
+
+}