com.bytezone.dm3270.orders.SetAttributeOrder Maven / Gradle / Ivy

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This is a trimmed down version of https://github.com/dmolony/dm3270 to be used as TN3270 client library

There is a newer version: 0.15-lib

package com.bytezone.dm3270.orders;

import com.bytezone.dm3270.attributes.Attribute;
import com.bytezone.dm3270.display.DisplayScreen;
import com.bytezone.dm3270.display.Pen;
import java.util.Optional;

public class SetAttributeOrder extends Order {

  private final Attribute attribute;

  public SetAttributeOrder(byte[] buffer, int offset) {
    assert buffer[offset] == Order.SET_ATTRIBUTE;

    Optional opt =
        Attribute.getAttribute(buffer[offset + 1], buffer[offset + 2]);
    assert opt.isPresent();
    attribute = opt.get();

    this.buffer = new byte[3];
    System.arraycopy(buffer, offset, this.buffer, 0, this.buffer.length);
  }

  public Attribute getAttribute() {
    return attribute;
  }

  @Override
  public void process(DisplayScreen screen) {
    Pen pen = screen.getPen();
    pen.addAttribute(attribute);
  }

  @Override
  public String toString() {
    return String.format("SA  : %s", attribute);
  }

}