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         @Override
  67         public Executable<Optional<PluginInfo>> fromUrl(String url) {
  68                 loadPlugin.setUrlType(UrlType.URL);
  69                 loadPlugin.setPluginUrl(url);
  70                 return this::execute;
  71         }
  72
  73         private ListenableFuture<Optional<PluginInfo>> execute() {
  74                 return threadPool.submit(this::executeDialog);
  75         }
  76
  77         private Optional<PluginInfo> executeDialog() throws IOException, ExecutionException, InterruptedException {
  78                 try (LoadPluginDialog loadPluginDialog = new LoadPluginDialog()) {
  79                         return loadPluginDialog.send(loadPlugin).get();
  80                 }
  81         }
  82
  83         private class LoadPluginDialog extends FcpDialog<Optional<PluginInfo>> {
  84
  85                 private final AtomicBoolean finished = new AtomicBoolean();
  86                 private final AtomicReference<PluginInfo> pluginInfo = new AtomicReference<>();
  87
  88                 public LoadPluginDialog() throws IOException {
  89                         super(threadPool, connectionSupplier.get());
  90                 }
  91
  92                 @Override
  93                 protected boolean isFinished() {
  94                         return finished.get();
  95                 }
  96
  97                 @Override
  98                 protected Optional<PluginInfo> getResult() {
  99                         return Optional.ofNullable(pluginInfo.get());
 100                 }
 101
 102                 @Override
 103                 protected void consumePluginInfo(PluginInfo pluginInfo) {
 104                         this.pluginInfo.set(pluginInfo);
 105                         finished.set(true);
 106                 }
 107
 108                 @Override
 109                 protected void consumeProtocolError(ProtocolError protocolError) {
 110                         finished.set(true);
 111                 }
 112
 113         }
 114
 115 }