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         @Override
  52         public Executable<Optional<PluginInfo>> officialFromHttps(String pluginIdentifier) {
  53                 loadPlugin.setUrlType(UrlType.OFFICIAL);
  54                 loadPlugin.setOfficialSource(OfficialSource.HTTPS);
  55                 loadPlugin.setPluginUrl(pluginIdentifier);
  56                 return this::execute;
  57         }
  58
  59         @Override
  60         public Executable<Optional<PluginInfo>> fromFile(String filename) {
  61                 loadPlugin.setUrlType(UrlType.FILE);
  62                 loadPlugin.setPluginUrl(filename);
  63                 return this::execute;
  64         }
  65
  66         private ListenableFuture<Optional<PluginInfo>> execute() {
  67                 return threadPool.submit(this::executeDialog);
  68         }
  69
  70         private Optional<PluginInfo> executeDialog() throws IOException, ExecutionException, InterruptedException {
  71                 try (LoadPluginDialog loadPluginDialog = new LoadPluginDialog()) {
  72                         return loadPluginDialog.send(loadPlugin).get();
  73                 }
  74         }
  75
  76         private class LoadPluginDialog extends FcpDialog<Optional<PluginInfo>> {
  77
  78                 private final AtomicBoolean finished = new AtomicBoolean();
  79                 private final AtomicReference<PluginInfo> pluginInfo = new AtomicReference<>();
  80
  81                 public LoadPluginDialog() throws IOException {
  82                         super(threadPool, connectionSupplier.get());
  83                 }
  84
  85                 @Override
  86                 protected boolean isFinished() {
  87                         return finished.get();
  88                 }
  89
  90                 @Override
  91                 protected Optional<PluginInfo> getResult() {
  92                         return Optional.ofNullable(pluginInfo.get());
  93                 }
  94
  95                 @Override
  96                 protected void consumePluginInfo(PluginInfo pluginInfo) {
  97                         this.pluginInfo.set(pluginInfo);
  98                         finished.set(true);
  99                 }
 100
 101                 @Override
 102                 protected void consumeProtocolError(ProtocolError protocolError) {
 103                         finished.set(true);
 104                 }
 105
 106         }
 107
 108 }