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diff --git a/src/main/java/org/onap/dmaap/dmf/mr/security/DMaaPAuthenticator.java b/src/main/java/org/onap/dmaap/dmf/mr/security/DMaaPAuthenticator.java
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+++ b/src/main/java/org/onap/dmaap/dmf/mr/security/DMaaPAuthenticator.java
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+/*******************************************************************************
+ *  ============LICENSE_START=======================================================
+ *  org.onap.dmaap
+ *  ================================================================================
+ *  Copyright © 2017 AT&T Intellectual Property. All rights reserved.
+ *  ================================================================================
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *        http://www.apache.org/licenses/LICENSE-2.0
+*  
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *  ============LICENSE_END=========================================================
+ *  
+ *  ECOMP is a trademark and service mark of AT&T Intellectual Property.
+ *  
+ *******************************************************************************/
+package org.onap.dmaap.dmf.mr.security;
+
+import com.att.nsa.security.NsaApiKey;
+import org.onap.dmaap.dmf.mr.beans.DMaaPContext;
+
+import javax.servlet.http.HttpServletRequest;
+
+
+/**
+ * An interface for authenticating an inbound request.
+ * @author nilanjana.maity
+ *
+ * @param <K> NsaApiKey
+ */
+public interface DMaaPAuthenticator<K extends NsaApiKey> {
+
+	/**
+	 * Qualify a request as possibly using the authentication method that this class implements.
+	 * @param req
+	 * @return true if the request might be authenticated by this class
+	 */
+	boolean qualify ( HttpServletRequest req );
+	
+	/**
+	 * Check for a request being authentic. If it is, return the API key. If not, return null.
+	 * @param req An inbound web request
+	 * @return the API key for an authentic request, or null
+	 */
+	K isAuthentic ( HttpServletRequest req );
+	/**
+	 * Check for a ctx being authenticate. If it is, return the API key. If not, return null.
+	 * @param ctx
+	 * @return the API key for an authentication request, or null
+	 */
+	K authenticate ( DMaaPContext ctx );
+	
+	
+	void addAuthenticator(DMaaPAuthenticator<K> a);
+
+}