src/main/java/net/pterodactylus/fcp/quelaton/GetConfigCommandImpl.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
   9 import net.pterodactylus.fcp.ConfigData;
  10 import net.pterodactylus.fcp.GetConfig;
  11
  12 import com.google.common.util.concurrent.ListenableFuture;
  13 import com.google.common.util.concurrent.ListeningExecutorService;
  14 import com.google.common.util.concurrent.MoreExecutors;
  15
  16 /**
  17  * Default {@link GetConfigCommand} implementation based on {@link FcpDialog}.
  18  *
  19  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  20  */
  21 public class GetConfigCommandImpl implements GetConfigCommand {
  22
  23         private final ListeningExecutorService threadPool;
  24         private final ConnectionSupplier connectionSupplier;
  25         private final AtomicBoolean withCurrent = new AtomicBoolean();
  26         private final AtomicBoolean withDefaults = new AtomicBoolean();
  27         private final AtomicBoolean withSortOrder = new AtomicBoolean();
  28         private final AtomicBoolean withExpertFlag = new AtomicBoolean();
  29
  30         public GetConfigCommandImpl(ExecutorService threadPool, ConnectionSupplier connectionSupplier) {
  31                 this.threadPool = MoreExecutors.listeningDecorator(threadPool);
  32                 this.connectionSupplier = connectionSupplier;
  33         }
  34
  35         @Override
  36         public GetConfigCommand withCurrent() {
  37                 withCurrent.set(true);
  38                 return this;
  39         }
  40
  41         @Override
  42         public GetConfigCommand withDefaults() {
  43                 withDefaults.set(true);
  44                 return this;
  45         }
  46
  47         @Override
  48         public GetConfigCommand withSortOrder() {
  49                 withSortOrder.set(true);
  50                 return this;
  51         }
  52
  53         @Override
  54         public GetConfigCommand withExpertFlag() {
  55                 withExpertFlag.set(true);
  56                 return this;
  57         }
  58
  59         @Override
  60         public ListenableFuture<ConfigData> execute() {
  61                 return threadPool.submit(this::executeDialog);
  62         }
  63
  64         private ConfigData executeDialog() throws IOException, ExecutionException, InterruptedException {
  65                 GetConfig getConfig = new GetConfig(new RandomIdentifierGenerator().generate());
  66                 getConfig.setWithCurrent(withCurrent.get());
  67                 getConfig.setWithDefaults(withDefaults.get());
  68                 getConfig.setWithSortOrder(withSortOrder.get());
  69                 getConfig.setWithExpertFlag(withExpertFlag.get());
  70                 try (GetConfigDialog getConfigDialog = new GetConfigDialog()) {
  71                         return getConfigDialog.send(getConfig).get();
  72                 }
  73         }
  74
  75         private class GetConfigDialog extends FcpDialog<ConfigData> {
  76
  77                 private final AtomicReference<ConfigData> configData = new AtomicReference<>();
  78
  79                 public GetConfigDialog() throws IOException {
  80                         super(threadPool, connectionSupplier.get());
  81                 }
  82
  83                 @Override
  84                 protected boolean isFinished() {
  85                         return configData.get() != null;
  86                 }
  87
  88                 @Override
  89                 protected ConfigData getResult() {
  90                         return configData.get();
  91                 }
  92
  93                 @Override
  94                 protected void consumeConfigData(ConfigData configData) {
  95                         this.configData.set(configData);
  96                 }
  97
  98         }
  99
 100 }