package eu.stork.peps.auth.commons;

import java.io.Serializable;

import org.apache.log4j.Logger;

/**
 * This class is a bean used to store the information relative to the Attribute Source (either AttributeProvider or Country).
 * 
 * @author Stelios Lelis (stelios.lelis@aegean.gr), Elias Pastos (ilias@aegean.gr)
 *
 * @version $Revision: 1.10 $, $Date: 2013-11-29 $
 */
public final class AttributeSource implements Serializable {
  /**
   * Unique identifier.
   */
  private static final long serialVersionUID = 432243595968469014L;

  public static final int SOURCE_LOCAL_APROVIDER = 1;
  public static final int SOURCE_REMOTE_COUNTRY = 2;

  /**
   * Logger object.
   */
  private static final Logger LOG = Logger.getLogger(AttributeSource.class.getName());

  /**
   * Provider source.
   */
  private int sourceType;
  
  /**
   * Provider URL.
   */
  private String providerURL;

  /**
   * The local Attribute Provider.
   */
  private AttributeProvider provider;

  /**
   * The remote Country.
   */
  private Country country;
  
  /**
   * Attribute Source Constructor.
   * 
   * @param provider The local Attribute Provider.
   * @param pURL URL of the Attribute Provider.
   */
  public AttributeSource(final AttributeProvider provider, final String pURL) {
    this.setSourceType(SOURCE_LOCAL_APROVIDER);

    this.setProvider(provider);
    this.setProviderURL(pURL);
  }
  
  /**
   * Attribute Source Constructor.
   * 
   * @param country The remote Country.
   * @param pURL URL of the Country.
   */
  public AttributeSource(final Country country, final String pURL) {
    this.setSourceType(SOURCE_REMOTE_COUNTRY);

    this.setCountry(country);
    this.setProviderURL(pURL);
  }

  /**
   * @param sourceType the sourceType to set
   */
  public void setSourceType(final int sourceType) {
	  this.sourceType = sourceType;
  }

  /**
   * @return the sourceType
   */
  public int getSourceType() {
	  return sourceType;
  }

  /**
   * @param providerURL the providerURL to set
   */
  public void setProviderURL(final String providerURL) {
	  this.providerURL = providerURL;
  }

  /**
   * @return the providerURL
   */
  public String getProviderURL() {
	  return providerURL;
  }

  /**
   * @param provider the provider to set
   */
  public void setProvider(final AttributeProvider provider) {
	  this.setSourceType(SOURCE_LOCAL_APROVIDER);

	  this.provider = provider;
  }

  /**
   * @return the provider
   */
  public AttributeProvider getProvider() {
	  return provider;
  }

  /**
   * @param country the country to set
   */
  public void setCountry(final Country country) {
	  this.setSourceType(SOURCE_REMOTE_COUNTRY);

	  this.country = country;
  }

  /**
   * @return the country
   */
  public Country getCountry() {
	  return country;
  }

  /**
   * {@inheritDoc}
   */
  public boolean equals(Object obj) {
	  boolean outcome = false;

	  LOG.debug("Calling equals with Object.");
	  if ( obj instanceof AttributeSource ) {
		  LOG.debug("Calling equals with AttributeSource.");
		  outcome = this.equals((AttributeSource)obj);
	  }

	  LOG.debug("Object equals outcome: " + outcome);
	  return outcome;
  }

  /**
   * Compare the given AttributeSource with the current object in order to determinine
   * if they are equal.
   * 
   * @param obj The AttributeSource to compare to
   * 
   * @return true if the two objects are equal
   */
  public boolean equals(AttributeSource obj) {
	  boolean outcome = false;

	  if ( this.sourceType==obj.getSourceType() ) {
		  if ( this.sourceType==AttributeSource.SOURCE_LOCAL_APROVIDER ) {
			  if ( this.provider.getProviderId().equals(obj.getProvider().getProviderId()) )
				  outcome = true;
		  }
		  else if ( this.sourceType==AttributeSource.SOURCE_REMOTE_COUNTRY ) {
			  if ( this.country.getCountryId().equals(obj.getCountry().getCountryId()) )
				  outcome = true;
		  }
	  }

	  LOG.debug("AttributeSource equals outcome: " + outcome);
	  return outcome;
  }

  /**
   * {@inheritDoc}
   */
  public int hashCode() {
	  int hash = 1;
	  hash = hash * 17 + this.sourceType;
	  if ( this.sourceType==AttributeSource.SOURCE_LOCAL_APROVIDER )
		  hash = hash * 31 + this.provider.getProviderName().hashCode();
	  else
		  hash = hash * 31 + this.country.getCountryName().hashCode();
	  return hash;
  }
}