TunableInt.java

// Copyright (c) FIRST and other WPILib contributors.
// Open Source Software; you can modify and/or share it under the terms of
// the WPILib BSD license file in the root directory of this project.
 
package org.wpilib.tunable;
 
import java.util.function.IntConsumer;
import java.util.function.IntSupplier;

public abstract class TunableInt extends TunableBase implements IntSupplier, IntConsumer {
  public static TunableInt create() {
    return create(0);
  }

  public static TunableInt create(int initialValue) {
    return createConfig(initialValue, null);
  }

  public static TunableInt create(IntSupplier getter, IntConsumer setter) {
    return createConfig(getter, setter, null);
  }

  public static TunableInt createConfig(TunableConfig config) {
    return createConfig(0, config);
  }

  public static TunableInt createConfig(int initialValue, TunableConfig config) {
    return new TunableInt(config, true) {
      @Override
      public void set(int value) {
        if (m_value == value) {
          return;
        }
        m_value = value;
        markChanged();
      }
 
      @Override
      public int get() {
        return m_value;
      }
 
      private int m_value = initialValue;
    };
  }

  public static TunableInt createConfig(
      IntSupplier getter, IntConsumer setter, TunableConfig config) {
    if (config == null) {
      config = TunableConfig.of(TunableOption.ALWAYS_GET);
    } else if (config.getPolling() == TunableConfig.Polling.DEFAULT) {
      config = config.withPolling(TunableConfig.Polling.ALWAYS_GET);
    }
    return new TunableInt(config, true) {
      @Override
      public void set(int value) {
        boolean changed = getter.getAsInt() != value;
        if (setter != null) {
          setter.accept(value);
        }
        if (changed) {
          markChanged();
        }
      }
 
      @Override
      public int get() {
        return getter.getAsInt();
      }
    };
  }

  protected TunableInt(TunableConfig config) {
    super(config);
  }

  protected TunableInt(TunableConfig config, boolean supportsChangeNotification) {
    super(config, supportsChangeNotification);
  }

  public abstract void set(int value);

  public abstract int get();
 
  @Override
  public int getAsInt() {
    return get();
  }
 
  @Override
  public void accept(int value) {
    set(value);
  }
}