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.innerEquals((AttributeSource) obj);
		}
		if (LOG.isDebugEnabled()) {
			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 innerEquals(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;
			}
		}
		if (LOG.isDebugEnabled()) {
			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;
	}
}