Add new constructor

Add a new constructor to PolicyEngine to support Properties parameters
instead of a file.

Issue-ID: CLAMP-136
Change-Id: Id82a736cac8ac5603ff3627a9ce2ac5af4197a45
Signed-off-by: Determe, Sebastien (sd378r) <sd378r@intl.att.com>

3 files changed, 73 insertions, 26 deletions

diff --git a/PolicyEngineAPI/src/main/java/org/onap/policy/api/PolicyEngine.java b/PolicyEngineAPI/src/main/java/org/onap/policy/api/PolicyEngine.java
index 0d224cee0..b8b077c99 100644
--- a/PolicyEngineAPI/src/main/java/org/onap/policy/api/PolicyEngine.java
+++ b/PolicyEngineAPI/src/main/java/org/onap/policy/api/PolicyEngine.java
@@ -2,7 +2,7 @@
  * ============LICENSE_START=======================================================
  * PolicyEngineAPI
  * ================================================================================
- * 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.
@@ -22,6 +22,7 @@ package org.onap.policy.api;
 
 import java.util.Collection;
 import java.util.Map;
+import java.util.Properties;
 import java.util.UUID;
 
 import javax.json.JsonObject;
@@ -36,11 +37,20 @@ import org.onap.policy.std.StdPolicyEngine;
  * @version 2.0
  */
 public class PolicyEngine{
-	private String propertyFilePath = null;
 	private final StdPolicyEngine stdPolicyEngine;
 	private NotificationScheme scheme = null;
 	private NotificationHandler handler = null;
 	
+	 /**
+   * PolicyEngine Constructor with <code>Properties</code> structure
+   * 
+   * @param properties the <code>Properties</code> structure containing the Policy engine parameters 
+   * @throws PolicyEngineException PolicyEngine Exception
+   */
+  public PolicyEngine(final Properties properties) throws PolicyEngineException {
+    this.stdPolicyEngine= new StdPolicyEngine(properties, (String)null);
+  }
+	
 	/**
 	 * PolicyEngine Constructor with <code>String</code> format of propertiesFilePathname
 	 * 
@@ -48,22 +58,31 @@ public class PolicyEngine{
 	 * @throws PolicyEngineException PolicyEngine Exception
 	 */
 	public PolicyEngine(final String propertiesFilePathname) throws PolicyEngineException {
-		this.propertyFilePath = propertiesFilePathname ; 
-		this.stdPolicyEngine= new StdPolicyEngine(this.propertyFilePath, (String)null);
+		this.stdPolicyEngine= new StdPolicyEngine(propertiesFilePathname, (String)null);
 	}
 	
 	/**
-	 * PolicyEngine Constructor with <code>String</code> format of propertiesFilePathname
+	 * PolicyEngine Constructor with <code>Properties</code> structure
 	 * 
-	 * @param propertiesFilePathname the <code>String</code> format of the propertiesFilePathname
+	 * @param properties the <code>Properties</code> structure containing the Policy engine parameters 
 	 * @param clientKey depicts String format of Password/ Client_Key.  
 	 * @throws PolicyEngineException PolicyEngine Exception
 	 */
-	public PolicyEngine(final String propertiesFilePathname, final String clientKey) throws PolicyEngineException {
-		this.propertyFilePath = propertiesFilePathname ; 
-		this.stdPolicyEngine= new StdPolicyEngine(this.propertyFilePath, clientKey);
+	public PolicyEngine(final Properties properties, final String clientKey) throws PolicyEngineException {
+		this.stdPolicyEngine= new StdPolicyEngine(properties, clientKey);
 	}
 	
+	 /**
+   * PolicyEngine Constructor with <code>String</code> format of propertiesFilePathname
+   * 
+   * @param propertiesFilePathname the <code>String</code> format of the propertiesFilePathname
+   * @param clientKey depicts String format of Password/ Client_Key.  
+   * @throws PolicyEngineException PolicyEngine Exception
+   */
+  public PolicyEngine(final String propertiesFilePathname, final String clientKey) throws PolicyEngineException {
+    this.stdPolicyEngine= new StdPolicyEngine(propertiesFilePathname, clientKey);
+  }
+	
 	/**
 	 * PolicyEngine Constructor with <code>String</code> format of PropertiesFilePathname and <code>NotificationScheme</code>
 	 * 
@@ -72,9 +91,8 @@ public class PolicyEngine{
 	 * @throws PolicyEngineException PolicyEngine Exception
 	 */
 	public PolicyEngine(final String propertiesFilePathname, final NotificationScheme scheme) throws PolicyEngineException{
-		this.propertyFilePath = propertiesFilePathname;
 		this.scheme = scheme;
-		this.stdPolicyEngine = new StdPolicyEngine(this.propertyFilePath, this.scheme);
+		this.stdPolicyEngine = new StdPolicyEngine(propertiesFilePathname, this.scheme);
 	}
 	
 	/**
@@ -86,10 +104,9 @@ public class PolicyEngine{
 	 *  @throws PolicyEngineException PolicyEngine Exception
 	 */
 	public PolicyEngine(final String propertiesFilePathname, final NotificationScheme scheme, final NotificationHandler handler) throws PolicyEngineException {
-		this.propertyFilePath = propertiesFilePathname ;
 		this.scheme = scheme;
 		this.handler = handler;
-		this.stdPolicyEngine= new StdPolicyEngine(this.propertyFilePath,this.scheme,this.handler);
+		this.stdPolicyEngine= new StdPolicyEngine(propertiesFilePathname,this.scheme,this.handler);
 	}
 	
 	/**
diff --git a/PolicyEngineAPI/src/main/java/org/onap/policy/std/StdPolicyEngine.java b/PolicyEngineAPI/src/main/java/org/onap/policy/std/StdPolicyEngine.java
index 3d3eceead..2349c2e2f 100644
--- a/PolicyEngineAPI/src/main/java/org/onap/policy/std/StdPolicyEngine.java
+++ b/PolicyEngineAPI/src/main/java/org/onap/policy/std/StdPolicyEngine.java
@@ -2,7 +2,7 @@
  * ============LICENSE_START=======================================================
  * PolicyEngineAPI
  * ================================================================================
- * 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.
@@ -175,6 +175,13 @@ public class StdPolicyEngine {
     public StdPolicyEngine(final String propertyFilePath, final String clientKey) throws PolicyEngineException {
         setProperty(propertyFilePath, clientKey);
     }
+    
+    /*
+     * Taking the Property structure even if it null.
+     */
+    public StdPolicyEngine(final Properties properties, final String clientKey) throws PolicyEngineException {
+        setProperty(properties, clientKey);
+    }
 
     /*
      * Taking the Notification Constructor.
@@ -840,14 +847,22 @@ public class StdPolicyEngine {
             throw new PolicyEngineException(
                     XACMLErrorConstants.ERROR_DATA_ISSUE + "Error NO PropertyFile Path provided");
         }
-
         final Properties prop = getProperties(propertyFilePath);
+        setProperty(prop,clientKey);
+    }
+    
+    private void setProperty(final Properties properties, String clientKey) throws PolicyEngineException {
+        if (properties == null) {
+            throw new PolicyEngineException(
+                    XACMLErrorConstants.ERROR_DATA_ISSUE + "NO properties provided, the value is NULL");
+        }
+
         // UEB and DMAAP Settings
-        final String notificationTypeValue = prop.getProperty(NOTIFICATION_TYPE_PROP_NAME);
-        final String serverList = prop.getProperty(NOTIFICATION_SERVERS_PROP_NAME);
-        topic = prop.getProperty(NOTIFICATION_TOPIC_PROP_NAME);
-        apiKey = prop.getProperty(UEB_API_KEY_PROP_NAME);
-        apiSecret = prop.getProperty(UEB_API_SECRET_PROP_NAME);
+        final String notificationTypeValue = properties.getProperty(NOTIFICATION_TYPE_PROP_NAME);
+        final String serverList = properties.getProperty(NOTIFICATION_SERVERS_PROP_NAME);
+        topic = properties.getProperty(NOTIFICATION_TOPIC_PROP_NAME);
+        apiKey = properties.getProperty(UEB_API_KEY_PROP_NAME);
+        apiSecret = properties.getProperty(UEB_API_SECRET_PROP_NAME);
 
         setNotificationType(notificationTypeValue, DEFAULT_NOTIFICATION);
 
@@ -867,9 +882,9 @@ public class StdPolicyEngine {
         }
 
         // Client ID Authorization Settings.
-        final String clientID = prop.getProperty(CLIENT_ID_PROP_NAME);
+        final String clientID = properties.getProperty(CLIENT_ID_PROP_NAME);
         if (clientKey == null) {
-            clientKey = getClientKeyFromProperties(prop);
+            clientKey = getClientKeyFromProperties(properties);
         }
         if (clientID == null || clientKey == null || clientID.isEmpty() || clientKey.isEmpty()) {
             LOGGER.error(XACMLErrorConstants.ERROR_PERMISSIONS
@@ -880,12 +895,12 @@ public class StdPolicyEngine {
             setClientId(clientID.trim());
             setClientKey(clientKey.trim());
         }
-        setEnvironment(prop);
+        setEnvironment(properties);
         // Initializing the values.
         init();
-        readPdpProperites(prop);
+        readPdpProperites(properties);
         // Get JUNIT property from properties file when running tests
-        checkJunit(prop);
+        checkJunit(properties);
     }
 
     private void readPdpProperites(final Properties prop) throws PolicyEngineException {
diff --git a/PolicyEngineAPI/src/test/java/org/onap/policy/std/StdPolicyEngineTest.java b/PolicyEngineAPI/src/test/java/org/onap/policy/std/StdPolicyEngineTest.java
index d4c1012cf..1218f1914 100644
--- a/PolicyEngineAPI/src/test/java/org/onap/policy/std/StdPolicyEngineTest.java
+++ b/PolicyEngineAPI/src/test/java/org/onap/policy/std/StdPolicyEngineTest.java
@@ -142,6 +142,16 @@ public class StdPolicyEngineTest {
         assertEquals(Arrays.asList(UEB, DMAAP), policyEngine.getNotificationType());
         assertEquals(Arrays.asList(SERVER_NAME, SERVER_NAME), policyEngine.getNotificationURLList());
     }
+    
+    @Test
+    public void testStdPolicyEngineWithPropertiesInitialize_noException() throws Exception {
+        final StdPolicyEngine policyEngine = new StdPolicyEngine(getDefaultProperties(), (String) null);
+        policyEngine.setScheme(NotificationScheme.MANUAL_NOTIFICATIONS);
+        assertEquals("TEST", StdPolicyEngine.getEnvironment());
+        assertEquals("http://localhost:8092/pdp/", StdPolicyEngine.getPDPURL());
+        assertEquals(Arrays.asList(UEB, DMAAP), policyEngine.getNotificationType());
+        assertEquals(Arrays.asList(SERVER_NAME, SERVER_NAME), policyEngine.getNotificationURLList());
+    }
 
     @Test
     public void testStdPolicyEngineInitializeWithSingleServerName_noException() throws Exception {
@@ -194,7 +204,12 @@ public class StdPolicyEngineTest {
 
     @Test(expected = PolicyEngineException.class)
     public void testStdPolicyEngineInitialize_NullArguments_Exception() throws Exception {
-        new StdPolicyEngine(null, (String) null);
+        new StdPolicyEngine((String)null, (String) null);
+    }
+
+    @Test(expected = PolicyEngineException.class)
+    public void testStdPolicyEngineWithPropertiesInitialize_NullArguments_Exception() throws Exception {
+        new StdPolicyEngine((Properties)null, (String) null);
     }
 
     @Test(expected = PolicyEngineException.class)