PDPX Healthcheck/Statistic RESTful API entry point

Includes:
- Basic code structure modeled after policy distribution
- Code implementation to support Healthcheck/Statistics RESTful API entry point
- JUnits
- Fixed Checkstyles issues and added some missing statistics classes and
Junits
- Made changes per Jim's comments
- Made more changes per Jim's comments
	> made gson field static
	> using AssertThatThrownBy() mechanic from AssertJ
	> added setup and teardown to correctly terminate activator in
	Junit
- Made corrections to the statitics endpoint and junits

Change-Id: Iad40272beceff8a0f99966440e96a84fc2043b12
Issue-ID: POLICY-1436
Signed-off-by: Michael Mokry <michael.mokry@att.com>

9 files changed, 57 insertions, 0 deletions

diff --git a/main/src/test/resources/expectedValidationResults/InvalidRestServerParameters.txt b/main/src/test/resources/expectedValidationResults/InvalidRestServerParameters.txt
new file mode 100644
index 00000000..957da6d6
--- /dev/null
+++ b/main/src/test/resources/expectedValidationResults/InvalidRestServerParameters.txt
@@ -0,0 +1,7 @@
+validation error(s) on parameters from "parameters/XacmlPdpConfigParameters_InvalidRestServerParameters.json"
+parameter group "XacmlPdpGroup" type "org.onap.policy.pdpx.main.parameters.XacmlPdpParameterGroup" INVALID, parameter group has status INVALID
+  parameter group "null" type "org.onap.policy.pdpx.main.parameters.RestServerParameters" INVALID, parameter group has status INVALID
+    field "host" type "java.lang.String" value "" INVALID, must be a non-blank string containing hostname/ipaddress of the xacml pdp rest server
+    field "port" type "int" value "-1" INVALID, must be a positive integer containing port of the xacml pdp rest server
+    field "userName" type "java.lang.String" value "" INVALID, must be a non-blank string containing userName for xacml pdp rest server credentials
+    field "password" type "java.lang.String" value "" INVALID, must be a non-blank string containing password for xacml pdp rest server credentials
diff --git a/main/src/test/resources/parameters/BadParameters.json b/main/src/test/resources/parameters/BadParameters.json
new file mode 100644
index 00000000..f2abd509
--- /dev/null
+++ b/main/src/test/resources/parameters/BadParameters.json
@@ -0,0 +1,3 @@
+{
+    "name": []
+}
\ No newline at end of file
diff --git a/main/src/test/resources/parameters/EmptyParameters.json b/main/src/test/resources/parameters/EmptyParameters.json
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/main/src/test/resources/parameters/EmptyParameters.json
diff --git a/main/src/test/resources/parameters/InvalidParameters.json b/main/src/test/resources/parameters/InvalidParameters.json
new file mode 100644
index 00000000..f2abd509
--- /dev/null
+++ b/main/src/test/resources/parameters/InvalidParameters.json
@@ -0,0 +1,3 @@
+{
+    "name": []
+}
\ No newline at end of file
diff --git a/main/src/test/resources/parameters/MinimumParameters.json b/main/src/test/resources/parameters/MinimumParameters.json
new file mode 100644
index 00000000..798731ae
--- /dev/null
+++ b/main/src/test/resources/parameters/MinimumParameters.json
@@ -0,0 +1,9 @@
+{
+    "name": "XacmlPdpGroup",
+    "restServerParameters": {
+        "host": "0.0.0.0",
+        "port": 6969,
+        "userName": "healthcheck",
+        "password": "zb!XztG34"
+    }
+}
diff --git a/main/src/test/resources/parameters/NoParameters.json b/main/src/test/resources/parameters/NoParameters.json
new file mode 100644
index 00000000..bbe1ee13
--- /dev/null
+++ b/main/src/test/resources/parameters/NoParameters.json
@@ -0,0 +1,8 @@
+{
+    "restServerParameters": {
+        "host": "0.0.0.0",
+        "port": 6969,
+        "userName": "healthcheck",
+        "password": "zb!XztG34"
+    }
+}
\ No newline at end of file
diff --git a/main/src/test/resources/parameters/XacmlPdpConfigParameters.json b/main/src/test/resources/parameters/XacmlPdpConfigParameters.json
new file mode 100644
index 00000000..798731ae
--- /dev/null
+++ b/main/src/test/resources/parameters/XacmlPdpConfigParameters.json
@@ -0,0 +1,9 @@
+{
+    "name": "XacmlPdpGroup",
+    "restServerParameters": {
+        "host": "0.0.0.0",
+        "port": 6969,
+        "userName": "healthcheck",
+        "password": "zb!XztG34"
+    }
+}
diff --git a/main/src/test/resources/parameters/XacmlPdpConfigParameters_InvalidName.json b/main/src/test/resources/parameters/XacmlPdpConfigParameters_InvalidName.json
new file mode 100644
index 00000000..8949a3c4
--- /dev/null
+++ b/main/src/test/resources/parameters/XacmlPdpConfigParameters_InvalidName.json
@@ -0,0 +1,9 @@
+{
+    "name": " ",
+    "restServerParameters": {
+        "host": "0.0.0.0",
+        "port": 6969,
+        "userName": "healthcheck",
+        "password": "zb!XztG34"
+    }
+}
diff --git a/main/src/test/resources/parameters/XacmlPdpConfigParameters_InvalidRestServerParameters.json b/main/src/test/resources/parameters/XacmlPdpConfigParameters_InvalidRestServerParameters.json
new file mode 100644
index 00000000..8b8e5c67
--- /dev/null
+++ b/main/src/test/resources/parameters/XacmlPdpConfigParameters_InvalidRestServerParameters.json
@@ -0,0 +1,9 @@
+{
+    "name": "XacmlPdpGroup",
+    "restServerParameters": {
+        "host": "",
+        "port": -1,
+        "userName": "",
+        "password": ""
+    }
+}