+package net.pterodactylus.fcp.quelaton;
+
+import java.io.IOException;
+import java.util.Optional;
+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.PluginInfo;
+import net.pterodactylus.fcp.ProtocolError;
+import net.pterodactylus.fcp.ReloadPlugin;
+
+import com.google.common.util.concurrent.ListenableFuture;
+import com.google.common.util.concurrent.ListeningExecutorService;
+import com.google.common.util.concurrent.MoreExecutors;
+
+/**
+ * Default {@link ReloadPluginCommand} implementation based on {@link FcpDialog}.
+ *
+ * @author <a href="mailto:bombe@freenetproject.org">David ‘Bombe’ Roden</a>
+ */
+public class ReloadPluginCommandImpl implements ReloadPluginCommand {
+
+ private static final RandomIdentifierGenerator IDENTIFIER = new RandomIdentifierGenerator();
+ private final ListeningExecutorService threadPool;
+ private final ConnectionSupplier connectionSupplier;
+ private final ReloadPlugin reloadPlugin = new ReloadPlugin(IDENTIFIER.generate());
+
+ public ReloadPluginCommandImpl(ExecutorService threadPool, ConnectionSupplier connectionSupplier) {
+ this.threadPool = MoreExecutors.listeningDecorator(threadPool);
+ this.connectionSupplier = connectionSupplier;
+ }
+
+ @Override
+ public Executable<Optional<PluginInfo>> plugin(String pluginClassName) {
+ reloadPlugin.setPluginName(pluginClassName);
+ return this::execute;
+ }
+
+ private ListenableFuture<Optional<PluginInfo>> execute() {
+ return threadPool.submit(this::executeDialog);
+ }
+
+ private Optional<PluginInfo> executeDialog() throws IOException, ExecutionException, InterruptedException {
+ try (ReloadPluginDialog loadPluginDialog = new ReloadPluginDialog()) {
+ return loadPluginDialog.send(reloadPlugin).get();
+ }
+ }
+
+ private class ReloadPluginDialog extends FcpDialog<Optional<PluginInfo>> {
+
+ private final AtomicBoolean finished = new AtomicBoolean();
+ private final AtomicReference<PluginInfo> pluginInfo = new AtomicReference<>();
+
+ public ReloadPluginDialog() throws IOException {
+ super(threadPool, connectionSupplier.get());
+ }
+
+ @Override
+ protected boolean isFinished() {
+ return finished.get();
+ }
+
+ @Override
+ protected Optional<PluginInfo> getResult() {
+ return Optional.ofNullable(pluginInfo.get());
+ }
+
+ @Override
+ protected void consumePluginInfo(PluginInfo pluginInfo) {
+ this.pluginInfo.set(pluginInfo);
+ finished.set(true);
+ }
+
+ @Override
+ protected void consumeProtocolError(ProtocolError protocolError) {
+ finished.set(true);
+ }
+
+ }
+
+}