--- /dev/null
+/*
+ * The Shibboleth License, Version 1. Copyright (c) 2002 University Corporation for Advanced Internet Development, Inc.
+ * All rights reserved Redistribution and use in source and binary forms, with or without modification, are permitted
+ * provided that the following conditions are met: Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer. Redistributions in binary form must reproduce the
+ * above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other
+ * materials provided with the distribution, if any, must include the following acknowledgment: "This product includes
+ * software developed by the University Corporation for Advanced Internet Development <http://www.ucaid.edu>Internet2
+ * Project. Alternately, this acknowledegement may appear in the software itself, if and wherever such third-party
+ * acknowledgments normally appear. Neither the name of Shibboleth nor the names of its contributors, nor Internet2,
+ * nor the University Corporation for Advanced Internet Development, Inc., nor UCAID may be used to endorse or promote
+ * products derived from this software without specific prior written permission. For written permission, please
+ * contact shibboleth@shibboleth.org Products derived from this software may not be called Shibboleth, Internet2,
+ * UCAID, or the University Corporation for Advanced Internet Development, nor may Shibboleth appear in their name,
+ * without prior written permission of the University Corporation for Advanced Internet Development. THIS SOFTWARE IS
+ * PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND WITH ALL FAULTS. ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND
+ * NON-INFRINGEMENT ARE DISCLAIMED AND THE ENTIRE RISK OF SATISFACTORY QUALITY, PERFORMANCE, ACCURACY, AND EFFORT IS
+ * WITH LICENSEE. IN NO EVENT SHALL THE COPYRIGHT OWNER, CONTRIBUTORS OR THE UNIVERSITY CORPORATION FOR ADVANCED
+ * INTERNET DEVELOPMENT, INC. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package edu.internet2.middleware.shibboleth.aap;
+
+import java.util.Iterator;
+
+/**
+ * Interface to attribute acceptance policy
+ *
+ * @author Scott Cantor
+ */
+public interface AAP {
+
+ /**
+ * Determine whether this policy does not impose any filtering rules
+ *
+ * @return true iff the policy does not contain any filtering rules
+ */
+ boolean anyAttribute();
+
+ /**
+ * Find a rule for the given SAML attribute
+ *
+ * @param name The AttributeName
+ * @param namespace The AttributeNamespace
+ * @return The applicable rule, if any
+ */
+ AttributeRule lookup(String name, String namespace);
+
+ /**
+ * Find a rule for the given shorthand attribute name
+ *
+ * @param alias The shorthand name
+ * @return The applicable rule, if any
+ */
+ AttributeRule lookup(String alias);
+
+ /**
+ * Get all of the rules contained in the policy
+ *
+ * @return The policy rules
+ */
+ Iterator /* <AttributeRule> */ getAttributeRules();
+}
--- /dev/null
+/*
+ * The Shibboleth License, Version 1. Copyright (c) 2002 University Corporation for Advanced Internet Development, Inc.
+ * All rights reserved Redistribution and use in source and binary forms, with or without modification, are permitted
+ * provided that the following conditions are met: Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer. Redistributions in binary form must reproduce the
+ * above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other
+ * materials provided with the distribution, if any, must include the following acknowledgment: "This product includes
+ * software developed by the University Corporation for Advanced Internet Development <http://www.ucaid.edu>Internet2
+ * Project. Alternately, this acknowledegement may appear in the software itself, if and wherever such third-party
+ * acknowledgments normally appear. Neither the name of Shibboleth nor the names of its contributors, nor Internet2,
+ * nor the University Corporation for Advanced Internet Development, Inc., nor UCAID may be used to endorse or promote
+ * products derived from this software without specific prior written permission. For written permission, please
+ * contact shibboleth@shibboleth.org Products derived from this software may not be called Shibboleth, Internet2,
+ * UCAID, or the University Corporation for Advanced Internet Development, nor may Shibboleth appear in their name,
+ * without prior written permission of the University Corporation for Advanced Internet Development. THIS SOFTWARE IS
+ * PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND WITH ALL FAULTS. ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND
+ * NON-INFRINGEMENT ARE DISCLAIMED AND THE ENTIRE RISK OF SATISFACTORY QUALITY, PERFORMANCE, ACCURACY, AND EFFORT IS
+ * WITH LICENSEE. IN NO EVENT SHALL THE COPYRIGHT OWNER, CONTRIBUTORS OR THE UNIVERSITY CORPORATION FOR ADVANCED
+ * INTERNET DEVELOPMENT, INC. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package edu.internet2.middleware.shibboleth.aap;
+
+import org.opensaml.SAMLAttribute;
+import org.opensaml.SAMLException;
+
+import edu.internet2.middleware.shibboleth.metadata.RoleDescriptor;
+
+/**
+ * Specifies handling of a specific SAML attribute
+ *
+ * @author Scott Cantor
+ */
+public interface AttributeRule {
+
+ /**
+ * Get the SAML name of the applicable attribute
+ *
+ * @return The AttributeName
+ */
+ String getName();
+
+ /**
+ * Get the SAML namespace of the applicable attribute
+ *
+ * @return The AttributeNamespace
+ */
+ String getNamespace();
+
+ /**
+ * Get the name of the class responsible for implementing this attribute
+ *
+ * @return The factory class name
+ */
+ String getFactory();
+
+ /**
+ * Get the shorthand name of the attribute
+ *
+ * @return The shorthand name
+ */
+ String getAlias();
+
+ /**
+ * Get the name of the protocol-specific header to export the attribute into
+ *
+ * @return The header name
+ */
+ String getHeader();
+
+ /**
+ * Is value matching of this attribute case-sensitive?
+ *
+ * @return The case sensitivity of the values
+ */
+ boolean getCaseSensitive();
+
+ /**
+ * Is the attribute formally scoped?
+ *
+ * @return The scoped property
+ */
+ boolean getScoped();
+
+ /**
+ * Applies a rule to an attribute, taking into account the role in
+ * which the issuer was acting
+ *
+ * @param attribute The attribute to apply the filtering rule to
+ * @param role The metadata role in which the attribute issuer is acting
+ * @throws SAMLException Raised if the attribute is no longer valid after
+ * the filtering process (generally if all values are deleted)
+ */
+ void apply(SAMLAttribute attribute, RoleDescriptor role) throws SAMLException;
+}