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

   1 package net.pterodactylus.fcp.quelaton;
   2
   3 import java.io.IOException;
   4 import java.util.Optional;
   5 import java.util.concurrent.ExecutionException;
   6 import java.util.concurrent.ExecutorService;
   7 import java.util.concurrent.atomic.AtomicBoolean;
   8 import java.util.concurrent.atomic.AtomicReference;
   9
  10 import net.pterodactylus.fcp.LoadPlugin;
  11 import net.pterodactylus.fcp.LoadPlugin.OfficialSource;
  12 import net.pterodactylus.fcp.LoadPlugin.UrlType;
  13 import net.pterodactylus.fcp.PluginInfo;
  14 import net.pterodactylus.fcp.ProtocolError;
  15
  16 import com.google.common.util.concurrent.ListenableFuture;
  17 import com.google.common.util.concurrent.ListeningExecutorService;
  18 import com.google.common.util.concurrent.MoreExecutors;
  19
  20 /**
  21  * Default {@link LoadPluginCommand} implementation based on {@link FcpDialog}.
  22  *
  23  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  24  */
  25 public class LoadPluginCommandImpl implements LoadPluginCommand {
  26
  27         private static final RandomIdentifierGenerator IDENTIFIER = new RandomIdentifierGenerator();
  28         private final ListeningExecutorService threadPool;
  29         private final ConnectionSupplier connectionSupplier;
  30         private final LoadPlugin loadPlugin = new LoadPlugin(IDENTIFIER.generate());
  31
  32         public LoadPluginCommandImpl(ExecutorService threadPool, ConnectionSupplier connectionSupplier) {
  33                 this.threadPool = MoreExecutors.listeningDecorator(threadPool);
  34                 this.connectionSupplier = connectionSupplier;
  35         }
  36
  37         @Override
  38         public LoadPluginCommand addToConfig() {
  39                 loadPlugin.setStore(true);
  40                 return this;
  41         }
  42
  43         @Override
  44         public Executable<Optional<PluginInfo>> officialFromFreenet(String pluginIdentifier) {
  45                 loadPlugin.setUrlType(UrlType.OFFICIAL);
  46                 loadPlugin.setOfficialSource(OfficialSource.FREENET);
  47                 loadPlugin.setPluginUrl(pluginIdentifier);
  48                 return this::execute;
  49         }
  50
  51         private ListenableFuture<Optional<PluginInfo>> execute() {
  52                 return threadPool.submit(this::executeDialog);
  53         }
  54
  55         private Optional<PluginInfo> executeDialog() throws IOException, ExecutionException, InterruptedException {
  56                 try (LoadPluginDialog loadPluginDialog = new LoadPluginDialog()) {
  57                         return loadPluginDialog.send(loadPlugin).get();
  58                 }
  59         }
  60
  61         private class LoadPluginDialog extends FcpDialog<Optional<PluginInfo>> {
  62
  63                 private final AtomicBoolean finished = new AtomicBoolean();
  64                 private final AtomicReference<PluginInfo> pluginInfo = new AtomicReference<>();
  65
  66                 public LoadPluginDialog() throws IOException {
  67                         super(threadPool, connectionSupplier.get());
  68                 }
  69
  70                 @Override
  71                 protected boolean isFinished() {
  72                         return finished.get();
  73                 }
  74
  75                 @Override
  76                 protected Optional<PluginInfo> getResult() {
  77                         return Optional.ofNullable(pluginInfo.get());
  78                 }
  79
  80                 @Override
  81                 protected void consumePluginInfo(PluginInfo pluginInfo) {
  82                         this.pluginInfo.set(pluginInfo);
  83                         finished.set(true);
  84                 }
  85
  86                 @Override
  87                 protected void consumeProtocolError(ProtocolError protocolError) {
  88                         finished.set(true);
  89                 }
  90
  91         }
  92
  93 }