/**
 * 
 */
package at.gv.egiz.pdfas.impl.api.commons;

import java.security.cert.X509Certificate;
import java.util.Date;

import at.gv.egiz.pdfas.api.commons.Constants;
import at.gv.egiz.pdfas.api.commons.SignatureInformation;
import at.gv.egiz.pdfas.api.io.DataSource;
import at.knowcenter.wag.egov.egiz.pdf.EGIZDate;
import at.knowcenter.wag.egov.egiz.pdf.SignatureHolder;

/**
 * Adapter that converts a framework SignatureHolder to an API
 * SignatureInformation.
 * 
 * @author wprinz
 */
public class SignatureInformationAdapter implements SignatureInformation
{
  /**
   * The framework SignatureHolder to be adapted to an API SignatureInformation.
   */
  protected SignatureHolder signatureHolder = null;

  /**
   * Constructor.
   * 
   * @param signatureHolder
   *          The framework SignatureHolder to be adapted to an API
   *          SignatureInformation.
   */
  public SignatureInformationAdapter(SignatureHolder signatureHolder)
  {
    this.signatureHolder = signatureHolder;
  }

  /**
   * @see at.gv.egiz.pdfas.api.commons.SignatureInformation#getSignedData()
   */
  public DataSource getSignedData()
  {
    return new DataSourceApiAdapter(this.signatureHolder.getDataSource());
  }

  /**
   * @see at.gv.egiz.pdfas.api.commons.SignatureInformation#getInternalSignatureInformation()
   */
  public Object getInternalSignatureInformation()
  {
    return this.signatureHolder;
  }

  /**
   * @see at.gv.egiz.pdfas.api.commons.SignatureInformation#getSignatureType()
   */
  public String getSignatureType()
  {
    if (this.signatureHolder.getSignatureObject().isBinary())
    {
      return Constants.SIGNATURE_TYPE_BINARY;
    }
    return Constants.SIGNATURE_TYPE_TEXTUAL;
  }


  /**
   * @see at.gv.egiz.pdfas.api.commons.SignatureInformation#getSignerCertificate()
   */
  public X509Certificate getSignerCertificate()
  {
    return this.signatureHolder.getSignatureObject().getX509Cert().getX509Certificate();
  }

  /**
   * @see at.gv.egiz.pdfas.api.commons.SignatureInformation#getSigningTime()
   */
  public Date getSigningTime()
  {
    String date_value = this.signatureHolder.getSignatureObject().getSignationDate();
    Date date = EGIZDate.parseDateFromString(date_value);
    return date;
  }

}