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There is a newer version: 1.1.2-RELEASE

package hope.kola.contract.api;

import groovy.lang.Closure;
import groovy.lang.DelegatesTo;
import java.util.ArrayList;
import java.util.List;

public class Multipart {

  protected List files = new ArrayList<>();

  public boolean hasFiles() {
    return files != null && !files.isEmpty();
  }

  public void file(@DelegatesTo(MultipartFile.class) Closure consumer) {
    MultipartFile res = new MultipartFile();
    consumer.setDelegate(res);
    consumer.call();
    files.add(res);
  }

  public List getFiles() {
    return files;
  }

  public Multipart addFile(MultipartFile file) {
    this.files.add(file);
    return this;
  }
}