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An implementation of the Canonical JSON format with support for javax.json and Jackson

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package io.setl.json.primitive;

import java.io.IOException;
import jakarta.json.JsonValue;

import io.setl.json.Canonical;

/**
 * Representation of "true".
 *
 * @author Simon Greatrix on 08/01/2020.
 */
public class CJTrue extends CJBase implements CJBoolean {

  /** The singleton instance. */
  public static final CJTrue TRUE = new CJTrue();


  /**
   * Convert the value into a canonical TRUE, FALSE or NULL.
   *
   * @param value the value to convert
   *
   * @return the corresponding JSON value
   */
  public static Canonical valueOf(Boolean value) {
    if (value == null) {
      return CJNull.NULL;
    }
    return value ? TRUE : CJFalse.FALSE;
  }


  private CJTrue() {
    // do nothing
  }


  @SuppressWarnings("EqualsWhichDoesntCheckParameterClass")
  @Override
  public boolean equals(Object obj) {
    return JsonValue.TRUE.equals(obj);
  }


  @Override
  public Boolean getValue() {
    return Boolean.TRUE;
  }


  @Override
  public ValueType getValueType() {
    return ValueType.TRUE;
  }


  @Override
  public int hashCode() {
    return JsonValue.TRUE.hashCode();
  }


  public String toString() {
    return "true";
  }


  @Override
  public void writeTo(Appendable writer) throws IOException {
    writer.append("true");
  }

}