/**
 * 
 */
package at.gv.egiz.pdfas.api.sign;

import at.gv.egiz.pdfas.api.commons.Constants;
import at.gv.egiz.pdfas.api.io.DataSink;
import at.gv.egiz.pdfas.api.io.DataSource;
import at.gv.egiz.pdfas.api.sign.pos.SignaturePositioning;
import at.gv.egiz.pdfas.api.timestamp.TimeStamper;

/**
 * Parameter object that holds the sign parameters.
 * 
 * @author wprinz
 */
public class SignParameters
{
  /**
   * The document to be signed.
   * 
   * <p>
   * The DataSource implementation encapsulates the actual representaion of the
   * data. E.g. the DataSource may be File based or byte array based. See
   * package at.gv.egiz.pdfas.framework.input and at.gv.pdfas.impl.input
   * </p>
   */
  protected DataSource document = null;

  /**
   * The type of the signature.
   * 
   * <p>
   * May be {@link Constants#SIGNATURE_TYPE_BINARY} or
   * {@link Constants#SIGNATURE_TYPE_TEXTUAL}.
   * </p>
   */
  protected String signatureType = Constants.SIGNATURE_TYPE_BINARY;

  /**
   * The signature device to perform the actual signature.
   * 
   * <p>
   * May be {@link Constants#SIGNATURE_DEVICE_MOA} or
   * {@link Constants#SIGNATURE_DEVICE_BKU}.
   * </p>
   */
  protected String signatureDevice = Constants.SIGNATURE_DEVICE_MOA;

  /**
   * The signature profile identifier identifying the profile to be used in the
   * config file.
   * 
   * <p>
   * Note: In near future it will be possible to provide a full specified
   * profile here instead of the profile id.
   * </p>
   */
  protected String signatureProfileId = null;
  
  /**
   * The signature key identifier specifying which signature key should be used
   * by the signature device to perform the signature.
   * 
   * <p>
   * Providing a null value (default) means that no explicit signature key
   * identifier is provided. The selected signature device will then use its
   * default mechanism for retrieving this information (which is usually to read
   * the key from the provided signature profile).
   * </p>
   * <p>
   * Note that not all signature devices may support this parameter.
   * If a signature device doesn't support this parameter the value should be null.
   * </p>
   * <p>
   * This key is usually passed straight through to the signature device and
   * thereby has to contain an appropriate value for the signature device
   * chosen.
   * </p>
   * <p>
   * Currently, only the {@link Constants#SIGNATURE_DEVICE_MOA} signature device
   * evaluates this parameter and passes the provided String to MOA as the MOA
   * key group identifier. If null is provided, the MOA signature device will
   * determine the signature key identifier to be used from the provided profile
   * and, if not specified there either, from the MOA default configuration.
   * </p>
   */
  protected String signatureKeyIdentifier = null;

  /**
   * The signature position. Consult the PDF-AS documentation section
   * Commandline.
   */
  protected SignaturePositioning signaturePositioning = null;

  /**
   * The output DataSink that will receive the signed document.
   */
  protected DataSink output = null;
  
  protected TimeStamper timeStamperImpl;
  
  
  /**
   * {@link #setTimeStamperImpl(TimeStamper)}
   * @return
   */
  public TimeStamper getTimeStamperImpl() {
     return this.timeStamperImpl;
  }

  /**
   * Set a {@link TimeStamper} to create a timestamp on the signature value. Will be 
   * called after sign. For binary signatures only. Timestamp will be embedded in egiz dict /TimeStamp.
   * @param timeStamperImpl
   */
  public void setTimeStamperImpl(TimeStamper timeStamperImpl) {
     this.timeStamperImpl = timeStamperImpl;
  }

/**
   * @return the document
   */
  public DataSource getDocument()
  {
    return document;
  }

  /**
   * @param document
   *          the document to set
   */
  public void setDocument(DataSource document)
  {
    this.document = document;
  }

  /**
   * @return the signatureType
   */
  public String getSignatureType()
  {
    return signatureType;
  }

  /**
   * @param signatureType
   *          the signatureType to set
   */
  public void setSignatureType(String signatureType)
  {
    this.signatureType = signatureType;
  }

  /**
   * @return the signatureDevice
   */
  public String getSignatureDevice()
  {
    return signatureDevice;
  }

  /**
   * @param signatureDevice
   *          the signatureDevice to set
   */
  public void setSignatureDevice(String signatureDevice)
  {
    this.signatureDevice = signatureDevice;
  }

  /**
   * @return the signatureProfileId
   */
  public String getSignatureProfileId()
  {
    return signatureProfileId;
  }

  /**
   * @param signatureProfileId
   *          the signatureProfileId to set
   */
  public void setSignatureProfileId(String signatureProfileId)
  {
    this.signatureProfileId = signatureProfileId;
  }

  /**
   * @return the signaturePositioning
   */
  public SignaturePositioning getSignaturePositioning()
  {
    return this.signaturePositioning;
  }

  /**
   * @param signaturePositioning
   *          the signaturePositioning to set
   */
  public void setSignaturePositioning(SignaturePositioning signaturePositioning)
  {
    this.signaturePositioning = signaturePositioning;
  }

  /**
   * @return the output
   */
  public DataSink getOutput()
  {
    return output;
  }

  /**
   * @param output
   *          the output to set
   */
  public void setOutput(DataSink output)
  {
    this.output = output;
  }

  /**
   * @return the signatureKeyIdentifier
   */
  public String getSignatureKeyIdentifier()
  {
    return this.signatureKeyIdentifier;
  }

  /**
   * @param signatureKeyIdentifier the signatureKeyIdentifier to set
   */
  public void setSignatureKeyIdentifier(String signatureKeyIdentifier)
  {
    this.signatureKeyIdentifier = signatureKeyIdentifier;
  }


}