src/main/java/net/pterodactylus/fcp/quelaton/ModifyConfigCommandImpl.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.concurrent.atomic.AtomicReference;
   8 import java.util.function.Supplier;
   9
  10 import net.pterodactylus.fcp.ConfigData;
  11 import net.pterodactylus.fcp.ModifyConfig;
  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 ModifyConfigCommand} implementation based on {@link FcpDialog}.
  19  *
  20  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  21  */
  22 public class ModifyConfigCommandImpl implements ModifyConfigCommand {
  23
  24         private final ListeningExecutorService threadPool;
  25         private final ConnectionSupplier connectionSupplier;
  26         private final ModifyConfig modifyConfig;
  27
  28         public ModifyConfigCommandImpl(ExecutorService threadPool, ConnectionSupplier connectionSupplier, Supplier<String> identifierGenerator) {
  29                 this.threadPool = MoreExecutors.listeningDecorator(threadPool);
  30                 this.connectionSupplier = connectionSupplier;
  31                 modifyConfig = new ModifyConfig(identifierGenerator.get());
  32         }
  33
  34         @Override
  35         public WithValue set(String key) {
  36                 return value -> to(key, value);
  37         }
  38
  39         private ModifyConfigCommand to(String key, String value) {
  40                 modifyConfig.setOption(key, value);
  41                 return this;
  42         }
  43
  44         @Override
  45         public ListenableFuture<ConfigData> execute() {
  46                 return threadPool.submit(this::executeDialog);
  47         }
  48
  49         private ConfigData executeDialog() throws IOException, ExecutionException, InterruptedException {
  50                 try (ModifyConfigDialog modifyConfigDialog = new ModifyConfigDialog()) {
  51                         return modifyConfigDialog.send(modifyConfig).get();
  52                 }
  53         }
  54
  55         private class ModifyConfigDialog extends FcpDialog<ConfigData> {
  56
  57                 private final AtomicBoolean finished = new AtomicBoolean();
  58                 private final AtomicReference<ConfigData> configData = new AtomicReference<>();
  59
  60                 public ModifyConfigDialog() throws IOException {
  61                         super(threadPool, connectionSupplier.get());
  62                 }
  63
  64                 @Override
  65                 protected boolean isFinished() {
  66                         return finished.get();
  67                 }
  68
  69                 @Override
  70                 protected ConfigData getResult() {
  71                         return configData.get();
  72                 }
  73
  74                 @Override
  75                 protected void consumeConfigData(ConfigData configData) {
  76                         this.configData.set(configData);
  77                         finished.set(true);
  78                 }
  79
  80         }
  81
  82 }