Add protected getter for settings to ease extension

The various SAML message and metadata object classes have now a
protected getter that allows for subclasses to access the settings
specified at construction time. This is useful to ease extension, for
instance when implementing postProcessXml, so that extensions don't need
to save their own copy of the settings.

core/src/main/java/com/onelogin/saml2/authn/AuthnRequest.java

@@ -279,4 +279,13 @@ public String getId()
 	{
 		return id;
 	}
+
+	/**
+	 * Returns the SAML settings specified at construction time.
+	 * 
+	 * @return the SAML settings
+	 */
+	protected Saml2Settings getSettings() {
+		return settings;
+	}
 }

core/src/main/java/com/onelogin/saml2/authn/SamlResponse.java

@@ -39,13 +39,13 @@
  */
 public class SamlResponse {
 	/**
-     * Private property to construct a logger for this class.
-     */
+       * Private property to construct a logger for this class.
+       */
 	private static final Logger LOGGER = LoggerFactory.getLogger(SamlResponse.class);
 
 	/**
-     * Settings data.
-     */
+       * Settings data.
+       */
 	private final Saml2Settings settings;
 
 	/**
@@ -1239,4 +1239,13 @@ protected void validateSpNameQualifier(final String spNameQualifier) throws Vali
 			throw new ValidationError("The SPNameQualifier value mismatch the SP entityID value.", ValidationError.SP_NAME_QUALIFIER_NAME_MISMATCH);
 		}
 	}
+
+	/**
+	 * Returns the SAML settings specified at construction time.
+	 * 
+	 * @return the SAML settings
+	 */
+	protected Saml2Settings getSettings() {
+		return settings;
+	}
 }

core/src/main/java/com/onelogin/saml2/logout/LogoutRequest.java

@@ -786,4 +786,13 @@ public String getId()
 	{
 		return id;
 	}
+
+	/**
+	 * Returns the SAML settings specified at construction time.
+	 * 
+	 * @return the SAML settings
+	 */
+	protected Saml2Settings getSettings() {
+		return settings;
+	}
 }

core/src/main/java/com/onelogin/saml2/logout/LogoutResponse.java

@@ -493,4 +493,13 @@ public String getError() {
 	public Exception getValidationException() {
 		return validationException;
 	}
+
+	/**
+	 * Returns the SAML settings specified at construction time.
+	 * 
+	 * @return the SAML settings
+	 */
+	protected Saml2Settings getSettings() {
+		return settings;
+	}
 }

core/src/main/java/com/onelogin/saml2/settings/Metadata.java

@@ -62,6 +62,11 @@ public class Metadata {
 	 */
 	private final Integer cacheDuration;
 
+	/**
+       * Settings data.
+       */
+	private final Saml2Settings settings;
+
 	/**
 	 * Constructs the Metadata object.
 	 *
@@ -72,6 +77,7 @@ public class Metadata {
 	 * @throws CertificateEncodingException
 	 */
 	public Metadata(Saml2Settings settings, Calendar validUntilTime, Integer cacheDuration, AttributeConsumingService attributeConsumingService) throws CertificateEncodingException {
+		this.settings = settings;
 		this.validUntilTime = validUntilTime;
 		this.attributeConsumingService = attributeConsumingService;
 		this.cacheDuration = cacheDuration;
@@ -102,7 +108,7 @@ public Metadata(Saml2Settings settings, Calendar validUntilTime, Integer cacheDu
 	 * @throws CertificateEncodingException
 	 */
 	public Metadata(Saml2Settings settings) throws CertificateEncodingException {
-
+		this.settings = settings;
 		this.validUntilTime = Calendar.getInstance();
 		this.validUntilTime.add(Calendar.DAY_OF_YEAR, N_DAYS_VALID_UNTIL);
 
@@ -407,4 +413,13 @@ public static String signMetadata(String metadata, PrivateKey key, X509Certifica
 		LOGGER.debug("Signed metadata --> " + signedMetadata);
 		return signedMetadata;
 	}
+
+	/**
+	 * Returns the SAML settings specified at construction time.
+	 * 
+	 * @return the SAML settings
+	 */
+	protected Saml2Settings getSettings() {
+		return settings;
+	}
 }