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
  29         public GetConfigCommandImpl(ExecutorService threadPool, ConnectionSupplier connectionSupplier) {
  30                 this.threadPool = MoreExecutors.listeningDecorator(threadPool);
  31                 this.connectionSupplier = connectionSupplier;
  32         }
  33
  34         @Override
  35         public GetConfigCommand withCurrent() {
  36                 withCurrent.set(true);
  37                 return this;
  38         }
  39
  40         @Override
  41         public GetConfigCommand withDefaults() {
  42                 withDefaults.set(true);
  43                 return this;
  44         }
  45
  46         @Override
  47         public GetConfigCommand withSortOrder() {
  48                 withSortOrder.set(true);
  49                 return this;
  50         }
  51
  52         @Override
  53         public ListenableFuture<ConfigData> execute() {
  54                 return threadPool.submit(this::executeDialog);
  55         }
  56
  57         private ConfigData executeDialog() throws IOException, ExecutionException, InterruptedException {
  58                 GetConfig getConfig = new GetConfig(new RandomIdentifierGenerator().generate());
  59                 getConfig.setWithCurrent(withCurrent.get());
  60                 getConfig.setWithDefaults(withDefaults.get());
  61                 getConfig.setWithSortOrder(withSortOrder.get());
  62                 try (GetConfigDialog getConfigDialog = new GetConfigDialog()) {
  63                         return getConfigDialog.send(getConfig).get();
  64                 }
  65         }
  66
  67         private class GetConfigDialog extends FcpDialog<ConfigData> {
  68
  69                 private final AtomicReference<ConfigData> configData = new AtomicReference<>();
  70
  71                 public GetConfigDialog() throws IOException {
  72                         super(threadPool, connectionSupplier.get());
  73                 }
  74
  75                 @Override
  76                 protected boolean isFinished() {
  77                         return configData.get() != null;
  78                 }
  79
  80                 @Override
  81                 protected ConfigData getResult() {
  82                         return configData.get();
  83                 }
  84
  85                 @Override
  86                 protected void consumeConfigData(ConfigData configData) {
  87                         this.configData.set(configData);
  88                 }
  89
  90         }
  91
  92 }