Adding configuration parameters for distribution

* Adding main configuration parameters to distribution component. The
  intention is to define a top level parameter group that should be
  capable of handling all the parameters needed for the framework.
* Added validation to check the actuall class by loading it from
  classpath.
* Added Test Cases for configuration parameter. The coverage of
  the package is 95.3 %.

Change-Id: I87c4c34d9df2c9b5a0ab75bef2bbe0d25e38747b
Issue-ID: POLICY-1035
Signed-off-by: ramverma <ram.krishna.verma@ericsson.com>

15 files changed, 298 insertions, 2 deletions

diff --git a/main/src/test/resources/parameters/DistributionConfigParameters.json b/main/src/test/resources/parameters/DistributionConfigParameters.json
new file mode 100644
index 00000000..546e5231
--- /dev/null
+++ b/main/src/test/resources/parameters/DistributionConfigParameters.json
@@ -0,0 +1,23 @@
+{
+    "name":"SDCDistributionGroup",
+    "receptionHandlerParameters":{
+        "SDCReceptionHandler":{
+            "receptionHandlerType":"SDC",
+            "receptionHandlerClassName":"org.onap.policy.distribution.reception.handling.sdc.SdcReceptionHandler",
+            "pluginHandlerParameters":{
+                "policyDecoders":{
+                    "TOSCADecoder":{
+                        "decoderType":"TOSCA",
+                        "decoderClassName":"org.onap.policy.distribution.reception.decoding.pdpx.PolicyDecoderToscaPdpx"
+                    }
+                },
+                "policyForwarders":{
+                    "PAPEngineForwarder":{
+                        "forwarderType":"PAPEngine",
+                        "forwarderClassName":"org.onap.policy.distribution.forwarding.pap.engine.XacmlPapServletPolicyForwarder"
+                    }
+                }
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/main/src/test/resources/parameters/DistributionConfigParameters_EmptyPolicyDecoder.json b/main/src/test/resources/parameters/DistributionConfigParameters_EmptyPolicyDecoder.json
new file mode 100644
index 00000000..7a0d14a7
--- /dev/null
+++ b/main/src/test/resources/parameters/DistributionConfigParameters_EmptyPolicyDecoder.json
@@ -0,0 +1,19 @@
+{
+    "name":"SDCDistributionGroup",
+    "receptionHandlerParameters":{
+        "SDCReceptionHandler":{
+            "receptionHandlerType":"SDC",
+            "receptionHandlerClassName":"org.onap.policy.distribution.reception.handling.sdc.SdcReceptionHandler",
+            "pluginHandlerParameters":{
+                "policyDecoders":{
+                },
+                "policyForwarders":{
+                    "PAPEngineForwarder":{
+                        "forwarderType":"PAPEngine",
+                        "forwarderClassName":"org.onap.policy.distribution.forwarding.pap.engine.XacmlPapServletPolicyForwarder"
+                    }
+                }
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/main/src/test/resources/parameters/DistributionConfigParameters_EmptyPolicyForwarder.json b/main/src/test/resources/parameters/DistributionConfigParameters_EmptyPolicyForwarder.json
new file mode 100644
index 00000000..b328df3d
--- /dev/null
+++ b/main/src/test/resources/parameters/DistributionConfigParameters_EmptyPolicyForwarder.json
@@ -0,0 +1,19 @@
+{
+    "name":"SDCDistributionGroup",
+    "receptionHandlerParameters":{
+        "SDCReceptionHandler":{
+            "receptionHandlerType":"SDC",
+            "receptionHandlerClassName":"org.onap.policy.distribution.reception.handling.sdc.SdcReceptionHandler",
+            "pluginHandlerParameters":{
+                "policyDecoders":{
+                    "TOSCADecoder":{
+                        "decoderType":"TOSCA",
+                        "decoderClassName":"org.onap.policy.distribution.reception.decoding.pdpx.PolicyDecoderToscaPdpx"
+                    }
+                },
+                "policyForwarders":{
+                }
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/main/src/test/resources/parameters/DistributionConfigParameters_EmptyReceptionHandler.json b/main/src/test/resources/parameters/DistributionConfigParameters_EmptyReceptionHandler.json
new file mode 100644
index 00000000..45368be1
--- /dev/null
+++ b/main/src/test/resources/parameters/DistributionConfigParameters_EmptyReceptionHandler.json
@@ -0,0 +1,5 @@
+{
+    "name":"SDCDistributionGroup",
+    "receptionHandlerParameters":{
+    }
+}
\ No newline at end of file
diff --git a/main/src/test/resources/parameters/DistributionConfigParameters_InvalidName.json b/main/src/test/resources/parameters/DistributionConfigParameters_InvalidName.json
new file mode 100644
index 00000000..c84a6784
--- /dev/null
+++ b/main/src/test/resources/parameters/DistributionConfigParameters_InvalidName.json
@@ -0,0 +1,23 @@
+{
+    "name":" ",
+    "receptionHandlerParameters":{
+        "SDCReceptionHandler":{
+            "receptionHandlerType":"SDC",
+            "receptionHandlerClassName":"org.onap.policy.distribution.reception.handling.sdc.SdcReceptionHandler",
+            "pluginHandlerParameters":{
+                "policyDecoders":{
+                    "TOSCADecoder":{
+                        "decoderType":"TOSCA",
+                        "decoderClassName":"org.onap.policy.distribution.reception.decoding.pdpx.PolicyDecoderToscaPdpx"
+                    }
+                },
+                "policyForwarders":{
+                    "PAPEngineForwarder":{
+                        "forwarderType":"PAPEngine",
+                        "forwarderClassName":"org.onap.policy.distribution.forwarding.pap.engine.XacmlPapServletPolicyForwarder"
+                    }
+                }
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/main/src/test/resources/parameters/DistributionConfigParameters_InvalidPolicyDecoderClass.json b/main/src/test/resources/parameters/DistributionConfigParameters_InvalidPolicyDecoderClass.json
new file mode 100644
index 00000000..eeafc25a
--- /dev/null
+++ b/main/src/test/resources/parameters/DistributionConfigParameters_InvalidPolicyDecoderClass.json
@@ -0,0 +1,31 @@
+{
+    "name":"SDCDistributionGroup",
+    "receptionHandlerParameters":{
+        "SDCReceptionHandler":{
+            "receptionHandlerType":"SDC",
+            "receptionHandlerClassName":"org.onap.policy.distribution.reception.handling.sdc.SdcReceptionHandler",
+            "pluginHandlerParameters":{
+                "policyDecoders":{
+                    "TOSCADecoder":{
+                        "decoderType":"TOSCA",
+                        "decoderClassName":"org.onap.policy.distribution.reception.decoding.pdpx.PolicyDecoderToscaPdpx"
+                    },
+                    "APEXDecoder":{
+                        "decoderType":"APEX",
+                        "decoderClassName":"org.onap.policy.distribution.reception.decoding.pdpx.PolicyDecoderApexPdpa"
+                    },
+                    "DROOLSDecoder":{
+                        "decoderType":"DROOLS",
+                        "decoderClassName":"org.onap.policy.distribution.reception.decoding.pdpx.PolicyDecoderDroolsPdpd"
+                    }
+                },
+                "policyForwarders":{
+                    "PAPEngineForwarder":{
+                        "forwarderType":"PAPEngine",
+                        "forwarderClassName":"org.onap.policy.distribution.forwarding.pap.engine.XacmlPapServletPolicyForwarder"
+                    }
+                }
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/main/src/test/resources/parameters/DistributionConfigParameters_InvalidPolicyDecoderType.json b/main/src/test/resources/parameters/DistributionConfigParameters_InvalidPolicyDecoderType.json
new file mode 100644
index 00000000..21ff4ad6
--- /dev/null
+++ b/main/src/test/resources/parameters/DistributionConfigParameters_InvalidPolicyDecoderType.json
@@ -0,0 +1,23 @@
+{
+    "name":"SDCDistributionGroup",
+    "receptionHandlerParameters":{
+        "SDCReceptionHandler":{
+            "receptionHandlerType":"SDC",
+            "receptionHandlerClassName":"org.onap.policy.distribution.reception.handling.sdc.SdcReceptionHandler",
+            "pluginHandlerParameters":{
+                "policyDecoders":{
+                    "TOSCADecoder":{
+                        "decoderType":" ",
+                        "decoderClassName":"org.onap.policy.distribution.reception.decoding.pdpx.PolicyDecoderToscaPdpx"
+                    }
+                },
+                "policyForwarders":{
+                    "PAPEngineForwarder":{
+                        "forwarderType":"PAPEngine",
+                        "forwarderClassName":"org.onap.policy.distribution.forwarding.pap.engine.XacmlPapServletPolicyForwarder"
+                    }
+                }
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/main/src/test/resources/parameters/DistributionConfigParameters_InvalidPolicyForwarderClass.json b/main/src/test/resources/parameters/DistributionConfigParameters_InvalidPolicyForwarderClass.json
new file mode 100644
index 00000000..6cf54d80
--- /dev/null
+++ b/main/src/test/resources/parameters/DistributionConfigParameters_InvalidPolicyForwarderClass.json
@@ -0,0 +1,27 @@
+{
+    "name":"SDCDistributionGroup",
+    "receptionHandlerParameters":{
+        "SDCReceptionHandler":{
+            "receptionHandlerType":"SDC",
+            "receptionHandlerClassName":"org.onap.policy.distribution.reception.handling.sdc.SdcReceptionHandler",
+            "pluginHandlerParameters":{
+                "policyDecoders":{
+                    "TOSCADecoder":{
+                        "decoderType":"TOSCA",
+                        "decoderClassName":"org.onap.policy.distribution.reception.decoding.pdpx.PolicyDecoderToscaPdpx"
+                    }
+                },
+                "policyForwarders":{
+                    "PAPEngineForwarder":{
+                        "forwarderType":"PAPEngine",
+                        "forwarderClassName":"org.onap.policy.distribution.forwarding.pap.engine.XacmlPapServletPolicyForwarder"
+                    },
+                    "PAPStandaloneForwarder":{
+                        "forwarderType":"PAPStandalone",
+                        "forwarderClassName":"org.onap.policy.distribution.forwarding.pap.engine.PapStandalonePolicyForwarder"
+                    }
+                }
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/main/src/test/resources/parameters/DistributionConfigParameters_InvalidPolicyForwarderType.json b/main/src/test/resources/parameters/DistributionConfigParameters_InvalidPolicyForwarderType.json
new file mode 100644
index 00000000..ea44b8aa
--- /dev/null
+++ b/main/src/test/resources/parameters/DistributionConfigParameters_InvalidPolicyForwarderType.json
@@ -0,0 +1,23 @@
+{
+    "name":"SDCDistributionGroup",
+    "receptionHandlerParameters":{
+        "SDCReceptionHandler":{
+            "receptionHandlerType":"SDC",
+            "receptionHandlerClassName":"org.onap.policy.distribution.reception.handling.sdc.SdcReceptionHandler",
+            "pluginHandlerParameters":{
+                "policyDecoders":{
+                    "TOSCADecoder":{
+                        "decoderType":"TOSCA",
+                        "decoderClassName":"org.onap.policy.distribution.reception.decoding.pdpx.PolicyDecoderToscaPdpx"
+                    }
+                },
+                "policyForwarders":{
+                    "PAPEngineForwarder":{
+                        "forwarderType":" ",
+                        "forwarderClassName":"org.onap.policy.distribution.forwarding.pap.engine.XacmlPapServletPolicyForwarder"
+                    }
+                }
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/main/src/test/resources/parameters/DistributionConfigParameters_InvalidReceptionHandlerClass.json b/main/src/test/resources/parameters/DistributionConfigParameters_InvalidReceptionHandlerClass.json
new file mode 100644
index 00000000..7be2a1a6
--- /dev/null
+++ b/main/src/test/resources/parameters/DistributionConfigParameters_InvalidReceptionHandlerClass.json
@@ -0,0 +1,23 @@
+{
+    "name":"SDCDistributionGroup",
+    "receptionHandlerParameters":{
+        "SDCReceptionHandler":{
+            "receptionHandlerType":"SDC",
+            "receptionHandlerClassName":"org.onap.policy.distribution.reception.handling.sdc.InvalidSdcReceptionHandler",
+            "pluginHandlerParameters":{
+                "policyDecoders":{
+                    "TOSCADecoder":{
+                        "decoderType":"TOSCA",
+                        "decoderClassName":"org.onap.policy.distribution.reception.decoding.pdpx.PolicyDecoderToscaPdpx"
+                    }
+                },
+                "policyForwarders":{
+                    "PAPEngineForwarder":{
+                        "forwarderType":"PAPEngine",
+                        "forwarderClassName":"org.onap.policy.distribution.forwarding.pap.engine.XacmlPapServletPolicyForwarder"
+                    }
+                }
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/main/src/test/resources/parameters/DistributionConfigParameters_InvalidReceptionHandlerType.json b/main/src/test/resources/parameters/DistributionConfigParameters_InvalidReceptionHandlerType.json
new file mode 100644
index 00000000..791236cb
--- /dev/null
+++ b/main/src/test/resources/parameters/DistributionConfigParameters_InvalidReceptionHandlerType.json
@@ -0,0 +1,23 @@
+{
+    "name":"SDCDistributionGroup",
+    "receptionHandlerParameters":{
+        "SDCReceptionHandler":{
+            "receptionHandlerType":" ",
+            "receptionHandlerClassName":"org.onap.policy.distribution.reception.handling.sdc.SdcReceptionHandler",
+            "pluginHandlerParameters":{
+                "policyDecoders":{
+                    "TOSCADecoder":{
+                        "decoderType":"TOSCA",
+                        "decoderClassName":"org.onap.policy.distribution.reception.decoding.pdpx.PolicyDecoderToscaPdpx"
+                    }
+                },
+                "policyForwarders":{
+                    "PAPEngineForwarder":{
+                        "forwarderType":"PAPEngine",
+                        "forwarderClassName":"org.onap.policy.distribution.forwarding.pap.engine.XacmlPapServletPolicyForwarder"
+                    }
+                }
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/main/src/test/resources/parameters/DistributionConfigParameters_NoPolicyDecoder.json b/main/src/test/resources/parameters/DistributionConfigParameters_NoPolicyDecoder.json
new file mode 100644
index 00000000..3ba35753
--- /dev/null
+++ b/main/src/test/resources/parameters/DistributionConfigParameters_NoPolicyDecoder.json
@@ -0,0 +1,17 @@
+{
+    "name":"SDCDistributionGroup",
+    "receptionHandlerParameters":{
+        "SDCReceptionHandler":{
+            "receptionHandlerType":"SDC",
+            "receptionHandlerClassName":"org.onap.policy.distribution.reception.handling.sdc.SdcReceptionHandler",
+            "pluginHandlerParameters":{
+                "policyForwarders":{
+                    "PAPEngineForwarder":{
+                        "forwarderType":"PAPEngine",
+                        "forwarderClassName":"org.onap.policy.distribution.forwarding.pap.engine.XacmlPapServletPolicyForwarder"
+                    }
+                }
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/main/src/test/resources/parameters/DistributionConfigParameters_NoPolicyForwarder.json b/main/src/test/resources/parameters/DistributionConfigParameters_NoPolicyForwarder.json
new file mode 100644
index 00000000..660cac92
--- /dev/null
+++ b/main/src/test/resources/parameters/DistributionConfigParameters_NoPolicyForwarder.json
@@ -0,0 +1,17 @@
+{
+    "name":"SDCDistributionGroup",
+    "receptionHandlerParameters":{
+        "SDCReceptionHandler":{
+            "receptionHandlerType":"SDC",
+            "receptionHandlerClassName":"org.onap.policy.distribution.reception.handling.sdc.SdcReceptionHandler",
+            "pluginHandlerParameters":{
+                "policyDecoders":{
+                    "TOSCADecoder":{
+                        "decoderType":"TOSCA",
+                        "decoderClassName":"org.onap.policy.distribution.reception.decoding.pdpx.PolicyDecoderToscaPdpx"
+                    }
+                }
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/main/src/test/resources/parameters/DistributionConfigParameters_NoReceptionHandler.json b/main/src/test/resources/parameters/DistributionConfigParameters_NoReceptionHandler.json
new file mode 100644
index 00000000..8b0997ca
--- /dev/null
+++ b/main/src/test/resources/parameters/DistributionConfigParameters_NoReceptionHandler.json
@@ -0,0 +1,3 @@
+{
+    "name":"SDCDistributionGroup"
+}
\ No newline at end of file
diff --git a/main/src/test/resources/parameters/MinimumParameters.json b/main/src/test/resources/parameters/MinimumParameters.json
index 02b2afad..1b42cc4d 100644
--- a/main/src/test/resources/parameters/MinimumParameters.json
+++ b/main/src/test/resources/parameters/MinimumParameters.json
@@ -1,3 +1,23 @@
-{
-    "name": "nameFromFile"
+{  
+    "name":"SDCDistributionGroup",
+    "receptionHandlerParameters":{  
+        "SDCReceptionHandler":{  
+            "receptionHandlerType":"SDC",
+            "receptionHandlerClassName":"org.onap.policy.distribution.reception.handling.sdc.SdcReceptionHandler",
+            "pluginHandlerParameters":{  
+                "policyDecoders":{  
+                    "TOSCADecoder":{  
+                        "decoderType":"TOSCA",
+                        "decoderClassName":"org.onap.policy.distribution.reception.decoding.pdpx.PolicyDecoderToscaPdpx"
+                    }
+                },
+                "policyForwarders":{  
+                    "PAPEngineForwarder":{  
+                        "forwarderType":"PAPEngine",
+                        "forwarderClassName":"org.onap.policy.distribution.forwarding.pap.engine.XacmlPapServletPolicyForwarder"
+                    }
+                }
+            }
+        }
+    }
 }
\ No newline at end of file