From 4a51a8f96715ffb2a42189b93b9fa91b453b8530 Mon Sep 17 00:00:00 2001
From: sg481n <sg481n@att.com>
Date: Thu, 3 Aug 2017 17:39:12 -0400
Subject:  [AAF-21] Initial code import
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Change-Id: Ia1dd196befd061f6ba0c2be6bf4456a30ea50f97
Signed-off-by: sg481n <sg481n@att.com>
---
 core/src/main/java/com/att/cadi/taf/EpiTaf.java | 85 +++++++++++++++++++++++++
 1 file changed, 85 insertions(+)
 create mode 100644 core/src/main/java/com/att/cadi/taf/EpiTaf.java

(limited to 'core/src/main/java/com/att/cadi/taf/EpiTaf.java')

diff --git a/core/src/main/java/com/att/cadi/taf/EpiTaf.java b/core/src/main/java/com/att/cadi/taf/EpiTaf.java
new file mode 100644
index 0000000..d3f5493
--- /dev/null
+++ b/core/src/main/java/com/att/cadi/taf/EpiTaf.java
@@ -0,0 +1,85 @@
+/*******************************************************************************
+ * ============LICENSE_START====================================================
+ * * org.onap.aai
+ * * ===========================================================================
+ * * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
+ * * Copyright © 2017 Amdocs
+ * * ===========================================================================
+ * * 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 com.att.cadi.taf;
+
+import com.att.cadi.CadiException;
+import com.att.cadi.Taf;
+
+/**
+ * EpiTAF
+ * 
+ * Short for "Epic TAF". Be able to run through a series of TAFs to obtain the validation needed.
+ * 
+ * OK, the name could probably be better as "Tafs", like it was originally, but the pun was too
+ * irresistible for this author to pass up.
+ * 
+ *
+ */
+public class EpiTaf implements Taf {
+	private Taf[] tafs;
+	
+	/**
+	 * EpiTaf constructor
+	 * 
+	 * Construct the EpiTaf from variable TAF parameters
+	 * @param tafs
+	 * @throws CadiException
+	 */
+	public EpiTaf(Taf ... tafs) throws CadiException{
+		this.tafs = tafs;
+		if(tafs.length==0) throw new CadiException("Need at least one Taf implementation in constructor");
+	}
+
+	/**
+	 * validate
+	 * 
+	 * Respond with the first TAF to authenticate user based on variable info and "LifeForm" (is it 
+	 * a human behind an interface, or a server behind a protocol).
+	 * 
+	 * If there is no TAF that can authenticate, respond with the first TAF that suggests it can
+	 * establish an Authentication conversation (TRY_AUTHENTICATING).
+	 * 
+	 * If no TAF declares either, respond with NullTafResp (which denies all questions)
+	 */
+	public TafResp validate(LifeForm reading, String... info) {
+		TafResp tresp,firstTryAuth=null;
+		for(Taf taf : tafs) {
+			tresp = taf.validate(reading, info);
+			switch(tresp.isAuthenticated()) {
+				case TRY_ANOTHER_TAF:
+					break;
+				case TRY_AUTHENTICATING:
+					if(firstTryAuth==null)firstTryAuth=tresp;
+					break;
+				default:
+					return tresp;
+			}
+		}
+
+		// No TAFs configured, at this point.  It is safer at this point to be "not validated", 
+		// rather than "let it go"
+		return firstTryAuth == null?NullTafResp.singleton():firstTryAuth;
+	}
+
+}
-- 
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