/*
 * Copyright 2014 Federal Chancellery Austria MOA-ID has been developed in a cooperation between
 * BRZ, the Federal Chancellery Austria - ICT staff unit, and Graz University of Technology.
 *
 * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by the European
 * Commission - subsequent versions of the EUPL (the "Licence"); You may not use this work except in
 * compliance with the Licence. You may obtain a copy of the Licence at: http://www.osor.eu/eupl/
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the Licence
 * is distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 * or implied. See the Licence for the specific language governing permissions and limitations under
 * the Licence.
 *
 * This product combines work with different licenses. See the "NOTICE" text file for details on the
 * various modules and licenses. The "NOTICE" text file is part of the distribution. Any derivative
 * works that you distribute must include a readable copy of the "NOTICE" text file.
*/


package at.gv.egiz.eaaf.core.impl.idp.auth.data;

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.Serializable;
import java.security.PublicKey;

import javax.xml.transform.TransformerException;

import org.w3c.dom.Element;

import at.gv.egiz.eaaf.core.api.idp.auth.data.IIdentityLink;
import at.gv.egiz.eaaf.core.impl.utils.DomUtils;
import at.gv.egiz.eaaf.core.impl.utils.XPathUtils;

/**
 * Data contained in an identity link issued by BMI, relevant to the MOA ID
 * component. <br>
 * <code>"IdentityLink"</code> is the translation of
 * <code>"Personenbindung"</code>.
 *
 * @author Paul Ivancsics
 * @version $Id$
 */
public class IdentityLink implements Serializable, IIdentityLink {

  private static final long serialVersionUID = 1L;

  /**
   * <code>"identificationValue"</code> is the translation of
   * <code>"Stammzahl"</code>.
   */
  private String identificationValue;
  /**
   * <code>"identificationType"</code> type of the identificationValue in the
   * IdentityLink.
   */
  private String identificationType;
  /**
   * first name.
   */
  private String givenName;
  /**
   * family name.
   */
  private String familyName;

  /**
   * date of birth.
   */
  private String dateOfBirth;
  /**
   * the original saml:Assertion-Element.
   */
  private transient Element samlAssertion;
  /**
   * the serializes saml:Assertion.
   */
  private String serializedSamlAssertion;
  /**
   * Element
   * /saml:Assertion/saml:AttributeStatement/saml:Subject
   * /saml:SubjectConfirmation/saml:SubjectConfirmationData/pr:Person.
   */
  private transient Element prPerson = null;
  /**
   * we need for each dsig:Reference Element all transformation elements.
   */
  private transient Element[] dsigReferenceTransforms = null;

  /**
   * The issuing time of the identity link SAML assertion.
   */
  private String issueInstant;

  /**
   * we need all public keys stored in the identity link.
   */
  private PublicKey[] publicKey;

  /**
   * Constructor for IdentityLink.
   */
  public IdentityLink() {
  }

  /*
   * (non-Javadoc)
   *
   * @see at.gv.egovernment.moa.id.auth.data.IIdentityLink#getDateOfBirth()
   */
  @Override
  public String getDateOfBirth() {
    return dateOfBirth;
  }

  /*
   * (non-Javadoc)
   *
   * @see at.gv.egovernment.moa.id.auth.data.IIdentityLink#getFamilyName()
   */
  @Override
  public String getFamilyName() {
    return familyName;
  }

  /*
   * (non-Javadoc)
   *
   * @see at.gv.egovernment.moa.id.auth.data.IIdentityLink#getGivenName()
   */
  @Override
  public String getGivenName() {
    return givenName;
  }

  /*
   * (non-Javadoc)
   *
   * @see at.gv.egovernment.moa.id.auth.data.IIdentityLink#getName()
   */
  @Override
  @Deprecated
  public String getName() {
    return givenName + " " + familyName;

  }

  /*
   * (non-Javadoc)
   *
   * @see
   * at.gv.egovernment.moa.id.auth.data.IIdentityLink#getIdentificationValue()
   */
  @Override
  public String getIdentificationValue() {
    return identificationValue;
  }

  /*
   * (non-Javadoc)
   *
   * @see at.gv.egovernment.moa.id.auth.data.IIdentityLink#getIdentificationType()
   */
  @Override
  public String getIdentificationType() {
    return identificationType;
  }

  /*
   * (non-Javadoc)
   *
   * @see
   * at.gv.egovernment.moa.id.auth.data.IIdentityLink#setDateOfBirth(java.lang.
   * String)
   */
  @Override
  public void setDateOfBirth(final String dateOfBirth) {
    this.dateOfBirth = dateOfBirth;
  }

  /*
   * (non-Javadoc)
   *
   * @see
   * at.gv.egovernment.moa.id.auth.data.IIdentityLink#setFamilyName(java.lang.
   * String)
   */
  @Override
  public void setFamilyName(final String familyName) {
    this.familyName = familyName;
  }

  /*
   * (non-Javadoc)
   *
   * @see at.gv.egovernment.moa.id.auth.data.IIdentityLink#setGivenName(java.lang.
   * String)
   */
  @Override
  public void setGivenName(final String givenName) {
    this.givenName = givenName;
  }

  /*
   * (non-Javadoc)
   *
   * @see
   * at.gv.egovernment.moa.id.auth.data.IIdentityLink#setIdentificationValue(java.
   * lang.String)
   */
  @Override
  public void setIdentificationValue(final String identificationValue) {
    this.identificationValue = identificationValue;
  }

  /*
   * (non-Javadoc)
   *
   * @see
   * at.gv.egovernment.moa.id.auth.data.IIdentityLink#setIdentificationType(java.
   * lang.String)
   */
  @Override
  public void setIdentificationType(final String identificationType) {
    this.identificationType = identificationType;
  }

  /*
   * (non-Javadoc)
   *
   * @see at.gv.egovernment.moa.id.auth.data.IIdentityLink#getSamlAssertion()
   */
  @Override
  public Element getSamlAssertion() {
    if (this.samlAssertion == null) {
      try {
        this.samlAssertion = DomUtils.parseXmlNonValidating(
            new ByteArrayInputStream(serializedSamlAssertion.getBytes("UTF-8")));

      } catch (final Exception e) {
        throw new RuntimeException(e);

      }
    }

    return this.samlAssertion;
  }

  /*
   * (non-Javadoc)
   *
   * @see
   * at.gv.egovernment.moa.id.auth.data.IIdentityLink#getSerializedSamlAssertion()
   */
  @Override
  public String getSerializedSamlAssertion() {
    return serializedSamlAssertion;
  }

  /*
   * (non-Javadoc)
   *
   * @see
   * at.gv.egovernment.moa.id.auth.data.IIdentityLink#setSamlAssertion(org.w3c.dom
   * .Element)
   */
  @Override
  public void setSamlAssertion(final Element samlAssertion)
      throws TransformerException, IOException {
    this.samlAssertion = samlAssertion;
    this.serializedSamlAssertion = DomUtils.serializeNode(samlAssertion);
  }

  /*
   * (non-Javadoc)
   *
   * @see
   * at.gv.egovernment.moa.id.auth.data.IIdentityLink#getDsigReferenceTransforms()
   */
  @Override
  public Element[] getDsigReferenceTransforms() {
    if (dsigReferenceTransforms != null) {
      return dsigReferenceTransforms.clone();

    } else {
      return null;

    }
  }

  /*
   * (non-Javadoc)
   *
   * @see
   * at.gv.egovernment.moa.id.auth.data.IIdentityLink#setDsigReferenceTransforms(
   * org.w3c.dom.Element [])
   */
  @Override
  public void setDsigReferenceTransforms(final Element[] dsigReferenceTransforms) {
    if (dsigReferenceTransforms != null) {
      this.dsigReferenceTransforms = dsigReferenceTransforms.clone();

    }
  }

  /*
   * (non-Javadoc)
   *
   * @see at.gv.egovernment.moa.id.auth.data.IIdentityLink#getPublicKey()
   */
  @Override
  public PublicKey[] getPublicKey() {
    if (publicKey != null) {
      return publicKey.clone();

    } else {
      return null;

    }
  }

  /*
   * (non-Javadoc)
   *
   * @see
   * at.gv.egovernment.moa.id.auth.data.IIdentityLink#setPublicKey(java.security.
   * PublicKey[])
   */
  @Override
  public void setPublicKey(final PublicKey[] publicKey) {
    if (publicKey != null) {
      this.publicKey = publicKey.clone();

    }
  }

  /*
   * (non-Javadoc)
   *
   * @see at.gv.egovernment.moa.id.auth.data.IIdentityLink#getPrPerson()
   */
  @Override
  public Element getPrPerson() {
    if (prPerson == null) {
      prPerson = (Element) XPathUtils.selectSingleNode(
          getSamlAssertion(), SimpleIdentityLinkAssertionParser.PERSON_XPATH);

    }

    return prPerson;
  }

  /*
   * (non-Javadoc)
   *
   * @see
   * at.gv.egovernment.moa.id.auth.data.IIdentityLink#setPrPerson(org.w3c.dom.
   * Element)
   */
  @Override
  public void setPrPerson(final Element prPerson) {
    this.prPerson = prPerson;
  }

  /*
   * (non-Javadoc)
   *
   * @see at.gv.egovernment.moa.id.auth.data.IIdentityLink#getIssueInstant()
   */
  @Override
  public String getIssueInstant() {
    return issueInstant;
  }

  /*
   * (non-Javadoc)
   *
   * @see
   * at.gv.egovernment.moa.id.auth.data.IIdentityLink#setIssueInstant(java.lang.
   * String)
   */
  @Override
  public void setIssueInstant(final String issueInstant) {
    this.issueInstant = issueInstant;
  }

}