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

   1 package net.pterodactylus.fcp.quelaton;
   2
   3 import java.io.IOException;
   4 import java.util.concurrent.ExecutionException;
   5 import java.util.concurrent.ExecutorService;
   6 import java.util.concurrent.atomic.AtomicBoolean;
   7 import java.util.function.Supplier;
   8
   9 import net.pterodactylus.fcp.PluginRemoved;
  10 import net.pterodactylus.fcp.ProtocolError;
  11 import net.pterodactylus.fcp.RemovePlugin;
  12
  13 import com.google.common.util.concurrent.ListenableFuture;
  14 import com.google.common.util.concurrent.ListeningExecutorService;
  15 import com.google.common.util.concurrent.MoreExecutors;
  16
  17 /**
  18  * Default {@link RemovePluginCommand} implementation based on {@link FcpDialog}.
  19  *
  20  * @author <a href="mailto:bombe@freenetproject.org">David ‘Bombe’ Roden</a>
  21  */
  22 public class RemovePluginCommandImpl implements RemovePluginCommand {
  23
  24         private final ListeningExecutorService threadPool;
  25         private final ConnectionSupplier connectionSupplier;
  26         private final RemovePlugin removePlugin;
  27
  28         public RemovePluginCommandImpl(ExecutorService threadPool, ConnectionSupplier connectionSupplier, Supplier<String> identifierGenerator) {
  29                 this.threadPool = MoreExecutors.listeningDecorator(threadPool);
  30                 this.connectionSupplier = connectionSupplier;
  31                 removePlugin = new RemovePlugin(identifierGenerator.get());
  32         }
  33
  34         @Override
  35         public RemovePluginCommand waitFor(int milliseconds) {
  36                 removePlugin.setMaxWaitTime(milliseconds);
  37                 return this;
  38         }
  39
  40         @Override
  41         public RemovePluginCommand purge() {
  42                 removePlugin.setPurge(true);
  43                 return this;
  44         }
  45
  46         @Override
  47         public Executable<Boolean> plugin(String pluginClass) {
  48                 removePlugin.setPluginName(pluginClass);
  49                 return this::execute;
  50         }
  51
  52         private ListenableFuture<Boolean> execute() {
  53                 return threadPool.submit(this::executeDialog);
  54         }
  55
  56         private boolean executeDialog() throws IOException, ExecutionException, InterruptedException {
  57                 try (RemovePluginDialog removePluginDialog = new RemovePluginDialog()) {
  58                         return removePluginDialog.send(removePlugin).get();
  59                 }
  60         }
  61
  62         private class RemovePluginDialog extends FcpDialog<Boolean> {
  63
  64                 private final AtomicBoolean finished = new AtomicBoolean();
  65                 private final AtomicBoolean pluginRemoved = new AtomicBoolean();
  66
  67                 public RemovePluginDialog() throws IOException {
  68                         super(threadPool, connectionSupplier.get());
  69                 }
  70
  71                 @Override
  72                 protected boolean isFinished() {
  73                         return finished.get();
  74                 }
  75
  76                 @Override
  77                 protected Boolean getResult() {
  78                         return pluginRemoved.get();
  79                 }
  80
  81                 @Override
  82                 protected void consumePluginRemoved(PluginRemoved pluginRemoved) {
  83                         this.pluginRemoved.set(true);
  84                         finished.set(true);
  85                 }
  86
  87                 @Override
  88                 protected void consumeProtocolError(ProtocolError protocolError) {
  89                         finished.set(true);
  90                 }
  91
  92         }
  93
  94 }