expose immutable list of filters to its users

+ additional related junits

Change-Id: I00293cd9aa911dfb3d658cad4ee0441ad3410e9c
Issue-ID: POLICY-164
Signed-off-by: Jorge Hernandez <jh1730@att.com>

2 files changed, 115 insertions, 14 deletions

diff --git a/policy-utils/src/main/java/org/onap/policy/drools/utils/Triple.java b/policy-utils/src/main/java/org/onap/policy/drools/utils/Triple.java
index 530d57a5..66179aa2 100644
--- a/policy-utils/src/main/java/org/onap/policy/drools/utils/Triple.java
+++ b/policy-utils/src/main/java/org/onap/policy/drools/utils/Triple.java
@@ -1,8 +1,8 @@
 /*-
  * ============LICENSE_START=======================================================
- * policy-utils
+ * ONAP
  * ================================================================================
- * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * Copyright (C) 2017-2018 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.
@@ -25,21 +25,62 @@ public class Triple<F,S,T> {
     private F first;
     private S second;
     private T third;
-    
+
+    public Triple() {
+        // empty constructor
+    }
+
     public Triple(F first, S second, T third){
         this.first = first;
         this.second = second;
         this.third = third;
     }
-    public F first(){ return this.first; }
-    
-    public S second(){ return this.second; }
-    
-    public T third(){ return this.third; }
-    
-    public void first(F first){ this.first = first; }
-    
-    public void second(S second){ this.second = second; }
-    
-    public void third(T third){ this.third = third; }
+
+    public F first(){
+        return this.getFirst();
+    }
+
+    public F getFirst() {
+        return first;
+    }
+
+    public void first(F first) {
+        this.setFirst(first);
+    }
+
+    public void setFirst(F first) {
+        this.first = first;
+    }
+
+    public S second() {
+        return this.getSecond();
+    }
+
+    public S getSecond() {
+        return second;
+    }
+
+    public void second(S second) {
+        this.setSecond(second);
+    }
+
+    public void setSecond(S second) {
+        this.second = second;
+    }
+
+    public T third() {
+        return this.getThird();
+    }
+
+    public T getThird() {
+        return this.third;
+    }
+
+    public void third(T third) {
+        this.setThird(third);
+    }
+
+    public void setThird(T third) {
+        this.third = third;
+    }
 }
diff --git a/policy-utils/src/test/java/org/onap/policy/drools/utils/TripleTest.java b/policy-utils/src/test/java/org/onap/policy/drools/utils/TripleTest.java
new file mode 100644
index 00000000..cdb93e8a
--- /dev/null
+++ b/policy-utils/src/test/java/org/onap/policy/drools/utils/TripleTest.java
@@ -0,0 +1,60 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP
+ * ================================================================================
+ * Copyright (C) 2018 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=========================================================
+ */
+
+package org.onap.policy.drools.utils;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class TripleTest {
+
+    @Test
+    public void test() {
+        Triple<String, String, String> triple  =
+                new Triple("one", "two", "three");
+
+        Assert.assertTrue("one".equals(triple.first()));
+        Assert.assertTrue("one".equals(triple.getFirst()));
+
+        Assert.assertTrue("two".equals(triple.second()));
+        Assert.assertTrue("two".equals(triple.getSecond()));
+
+        Assert.assertTrue("three".equals(triple.third()));
+        Assert.assertTrue("three".equals(triple.getThird()));
+
+        triple.first("I");
+        Assert.assertTrue("I".equals(triple.first()));
+
+        triple.setFirst("1");
+        Assert.assertTrue("1".equals(triple.first()));
+
+        triple.second("2");
+        Assert.assertTrue("2".equals(triple.second()));
+
+        triple.setSecond("II");
+        Assert.assertTrue("II".equals(triple.second()));
+
+        triple.third("3");
+        Assert.assertTrue("3".equals(triple.third()));
+
+        triple.setThird("III");
+        Assert.assertTrue("III".equals(triple.third()));
+    }
+}
\ No newline at end of file