Adding more examples to apex-pdp

- Adding more examples (DecisionMaker, Periodic & ONAPvCPE) to apex-pdp.
- Fixed CORS issue in plugin-event-carrier-restserver module.
Added a ContainerResponseFilter to intercept every request/response coming to
REST server and add the required headers to support CORS.

Change-Id: Ic3e36c683f2a78992ce1417d2c00233b34066f2f
Issue-ID: POLICY-861
Signed-off-by: ramverma <ram.krishna.verma@ericsson.com>

8 files changed, 432 insertions, 0 deletions

diff --git a/examples/examples-decisionmaker/src/main/resources/logic/AnswerInitTask.js b/examples/examples-decisionmaker/src/main/resources/logic/AnswerInitTask.js
new file mode 100644
index 000000000..59074963a
--- /dev/null
+++ b/examples/examples-decisionmaker/src/main/resources/logic/AnswerInitTask.js
@@ -0,0 +1,47 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. 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.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+executor.logger.info(executor.subject.id);
+executor.logger.info(executor.inFields);
+
+var answerAlbum = executor.getContextAlbum("AnswerAlbum");
+
+answerAlbum.put("a0", executor.inFields.get("a0"));
+answerAlbum.put("a1", executor.inFields.get("a1"));
+answerAlbum.put("a2", executor.inFields.get("a2"));
+answerAlbum.put("a3", executor.inFields.get("a3"));
+answerAlbum.put("a4", executor.inFields.get("a4"));
+answerAlbum.put("a5", executor.inFields.get("a5"));
+answerAlbum.put("a6", executor.inFields.get("a6"));
+
+var lastAnswerAlbum = executor.getContextAlbum("LastAnswerAlbum");
+lastAnswerAlbum.put("lastAnswer", answerAlbum.size() - 1);
+
+executor.outFields.put("a0", answerAlbum.get("a0"));
+executor.outFields.put("a1", answerAlbum.get("a1"));
+executor.outFields.put("a2", answerAlbum.get("a2"));
+executor.outFields.put("a3", answerAlbum.get("a3"));
+executor.outFields.put("a4", answerAlbum.get("a4"));
+executor.outFields.put("a5", answerAlbum.get("a5"));
+executor.outFields.put("a6", answerAlbum.get("a6"));
+
+executor.logger.info(executor.outFields);
+
+var returnValue = executor.TRUE;
\ No newline at end of file
diff --git a/examples/examples-decisionmaker/src/main/resources/logic/DitheringAnswerTask.js b/examples/examples-decisionmaker/src/main/resources/logic/DitheringAnswerTask.js
new file mode 100644
index 000000000..ec3455851
--- /dev/null
+++ b/examples/examples-decisionmaker/src/main/resources/logic/DitheringAnswerTask.js
@@ -0,0 +1,37 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. 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.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+executor.logger.info(executor.subject.id);
+executor.logger.info(executor.inFields);
+
+var size = executor.getContextAlbum("AnswerAlbum").size();
+
+var selection = 2 + Math.floor(Math.random() * 3);
+
+var selectionA = "a" + selection;
+
+executor.logger.info(size);
+executor.logger.info(selectionA);
+
+executor.outFields.put("decision", executor.getContextAlbum("AnswerAlbum").get(selectionA));
+
+executor.logger.info(executor.outFields);
+
+var returnValue = executor.TRUE;
\ No newline at end of file
diff --git a/examples/examples-decisionmaker/src/main/resources/logic/MakeDecisionStateTSL.js b/examples/examples-decisionmaker/src/main/resources/logic/MakeDecisionStateTSL.js
new file mode 100644
index 000000000..93261e2e0
--- /dev/null
+++ b/examples/examples-decisionmaker/src/main/resources/logic/MakeDecisionStateTSL.js
@@ -0,0 +1,42 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. 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.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+executor.logger.info(executor.subject.id);
+executor.logger.info(executor.inFields);
+
+var returnValue = executor.TRUE;
+
+if (executor.inFields.get("mode").equals("random")) {
+    executor.subject.getTaskKey("RandomAnswerTask").copyTo(executor.selectedTask);
+}
+else if (executor.inFields.get("mode").equals("pessimistic")) {
+    executor.subject.getTaskKey("PessimisticAnswerTask").copyTo(executor.selectedTask);
+}
+else if (executor.inFields.get("mode").equals("optimistic")) {
+    executor.subject.getTaskKey("OptimisticAnswerTask").copyTo(executor.selectedTask);
+}
+else if (executor.inFields.get("mode").equals("dithering")) {
+    executor.subject.getTaskKey("DitheringAnswerTask").copyTo(executor.selectedTask);
+}
+//else if (executor.inFields.get("mode").equals("roundrobin")) {
+//    executor.subject.getTaskKey("RoundRobinAnswerTask").copyTo(executor.selectedTask);
+//}
+
+executor.logger.info("Answer Selected Task:" + executor.selectedTask);
\ No newline at end of file
diff --git a/examples/examples-decisionmaker/src/main/resources/logic/OptimisticAnswerTask.js b/examples/examples-decisionmaker/src/main/resources/logic/OptimisticAnswerTask.js
new file mode 100644
index 000000000..e197c5f07
--- /dev/null
+++ b/examples/examples-decisionmaker/src/main/resources/logic/OptimisticAnswerTask.js
@@ -0,0 +1,37 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. 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.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+executor.logger.info(executor.subject.id);
+executor.logger.info(executor.inFields);
+
+var size = executor.getContextAlbum("AnswerAlbum").size();
+
+var selection = size - Math.floor(Math.random() * size / 2) - 1;
+
+var selectionA = "a" + selection;
+
+executor.logger.info(size);
+executor.logger.info(selectionA);
+
+executor.outFields.put("decision", executor.getContextAlbum("AnswerAlbum").get(selectionA));
+
+executor.logger.info(executor.outFields);
+
+var returnValue = executor.TRUE;
\ No newline at end of file
diff --git a/examples/examples-decisionmaker/src/main/resources/logic/PessimisticAnswerTask.js b/examples/examples-decisionmaker/src/main/resources/logic/PessimisticAnswerTask.js
new file mode 100644
index 000000000..34942d846
--- /dev/null
+++ b/examples/examples-decisionmaker/src/main/resources/logic/PessimisticAnswerTask.js
@@ -0,0 +1,37 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. 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.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+executor.logger.info(executor.subject.id);
+executor.logger.info(executor.inFields);
+
+var size = executor.getContextAlbum("AnswerAlbum").size();
+
+var selection = Math.floor(Math.random() * size / 2);
+
+var selectionA = "a" + selection;
+
+executor.logger.info(size);
+executor.logger.info(selectionA);
+
+executor.outFields.put("decision", executor.getContextAlbum("AnswerAlbum").get(selectionA));
+
+executor.logger.info(executor.outFields);
+
+var returnValue = executor.TRUE;
\ No newline at end of file
diff --git a/examples/examples-decisionmaker/src/main/resources/logic/RandomAnswerTask.js b/examples/examples-decisionmaker/src/main/resources/logic/RandomAnswerTask.js
new file mode 100644
index 000000000..f4012ac6e
--- /dev/null
+++ b/examples/examples-decisionmaker/src/main/resources/logic/RandomAnswerTask.js
@@ -0,0 +1,37 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. 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.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+executor.logger.info(executor.subject.id);
+executor.logger.info(executor.inFields);
+
+var size = executor.getContextAlbum("AnswerAlbum").size();
+
+var selection = Math.floor(Math.random() * size);
+
+var selectionA = "a" + selection;
+
+executor.logger.info(size);
+executor.logger.info(selectionA);
+
+executor.outFields.put("decision", executor.getContextAlbum("AnswerAlbum").get(selectionA));
+
+executor.logger.info(executor.outFields);
+
+var returnValue = executor.TRUE;
\ No newline at end of file
diff --git a/examples/examples-decisionmaker/src/main/resources/logic/RoundRobinAnswerTask.js b/examples/examples-decisionmaker/src/main/resources/logic/RoundRobinAnswerTask.js
new file mode 100644
index 000000000..a3d52f20f
--- /dev/null
+++ b/examples/examples-decisionmaker/src/main/resources/logic/RoundRobinAnswerTask.js
@@ -0,0 +1,45 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. 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.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+executor.logger.info(executor.subject.id);
+executor.logger.info(executor.inFields);
+
+var size = executor.getContextAlbum("AnswerAlbum").size();
+var lastAnswer = executor.getContextAlbum("LastAnswerAlbum").get("lastAnswer");
+
+executor.logger.info(size);
+executor.logger.info(lastAnswer);
+
+var answer = ++lastAnswer;
+if (answer >= size) {
+    answer = 0;
+}
+
+executor.getContextAlbum("LastAnswerAlbum").put("lastAnswer", answer)
+
+var selectionA = "a" + answer;
+
+executor.logger.info(selectionA);
+
+executor.outFields.put("decision", executor.getContextAlbum("AnswerAlbum").get(selectionA));
+
+executor.logger.info(executor.outFields);
+
+var returnValue = executor.TRUE;
\ No newline at end of file
diff --git a/examples/examples-decisionmaker/src/main/resources/policy/DecisionMakerPolicyModel.apex b/examples/examples-decisionmaker/src/main/resources/policy/DecisionMakerPolicyModel.apex
new file mode 100644
index 000000000..295afa159
--- /dev/null
+++ b/examples/examples-decisionmaker/src/main/resources/policy/DecisionMakerPolicyModel.apex
@@ -0,0 +1,150 @@
+#-------------------------------------------------------------------------------
+# ============LICENSE_START=======================================================
+#  Copyright (C) 2016-2018 Ericsson. 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.
+# 
+# SPDX-License-Identifier: Apache-2.0
+# ============LICENSE_END=========================================================
+#-------------------------------------------------------------------------------
+
+model create name=DecisionMakerPolicyModel
+
+schema create name=SimpleStringType  flavour=Java schema=java.lang.String
+schema create name=SimpleIntegerType flavour=Java schema=java.lang.Integer
+
+album create name=AnswerAlbum scope=policy writable=true schemaName=SimpleStringType
+album create name=LastAnswerAlbum scope=policy writable=true schemaName=SimpleIntegerType
+
+event create name=AnswerEvent nameSpace=org.onap.policy.apex.domains.decisionmaker source=DCAE target=apex
+event parameter create name=AnswerEvent parName=a0 schemaName=SimpleStringType
+event parameter create name=AnswerEvent parName=a1 schemaName=SimpleStringType
+event parameter create name=AnswerEvent parName=a2 schemaName=SimpleStringType
+event parameter create name=AnswerEvent parName=a3 schemaName=SimpleStringType
+event parameter create name=AnswerEvent parName=a4 schemaName=SimpleStringType
+event parameter create name=AnswerEvent parName=a5 schemaName=SimpleStringType
+event parameter create name=AnswerEvent parName=a6 schemaName=SimpleStringType
+
+event create name=MakeDecisionEvent nameSpace=org.onap.policy.apex.domains.decisionmaker source=DCAE target=apex
+event parameter create name=MakeDecisionEvent parName=mode schemaName=SimpleStringType
+
+event create name=DecisionEvent nameSpace=org.onap.policy.apex.domains.decisionmaker source=DCAE target=apex
+event parameter create name=DecisionEvent parName=decision schemaName=SimpleStringType
+
+task create name=AnswerInitTask
+task inputfield create name=AnswerInitTask fieldName=a0 schemaName=SimpleStringType
+task inputfield create name=AnswerInitTask fieldName=a1 schemaName=SimpleStringType
+task inputfield create name=AnswerInitTask fieldName=a2 schemaName=SimpleStringType
+task inputfield create name=AnswerInitTask fieldName=a3 schemaName=SimpleStringType
+task inputfield create name=AnswerInitTask fieldName=a4 schemaName=SimpleStringType
+task inputfield create name=AnswerInitTask fieldName=a5 schemaName=SimpleStringType
+task inputfield create name=AnswerInitTask fieldName=a6 schemaName=SimpleStringType
+
+task outputfield create name=AnswerInitTask fieldName=a0 schemaName=SimpleStringType
+task outputfield create name=AnswerInitTask fieldName=a1 schemaName=SimpleStringType
+task outputfield create name=AnswerInitTask fieldName=a2 schemaName=SimpleStringType
+task outputfield create name=AnswerInitTask fieldName=a3 schemaName=SimpleStringType
+task outputfield create name=AnswerInitTask fieldName=a4 schemaName=SimpleStringType
+task outputfield create name=AnswerInitTask fieldName=a5 schemaName=SimpleStringType
+task outputfield create name=AnswerInitTask fieldName=a6 schemaName=SimpleStringType
+
+task contextref create name=AnswerInitTask albumName=AnswerAlbum
+task contextref create name=AnswerInitTask albumName=LastAnswerAlbum
+
+task logic create name=AnswerInitTask logicFlavour=JAVASCRIPT logic=LS
+#MACROFILE:"src/main/resources/logic/AnswerInitTask.js"
+LE
+
+task create name=RandomAnswerTask
+
+task inputfield create name=RandomAnswerTask fieldName=mode schemaName=SimpleStringType
+
+task outputfield create name=RandomAnswerTask fieldName=decision schemaName=SimpleStringType
+
+task contextref create name=RandomAnswerTask albumName=AnswerAlbum
+
+task logic create name=RandomAnswerTask logicFlavour=JAVASCRIPT logic=LS
+#MACROFILE:"src/main/resources/logic/RandomAnswerTask.js"
+LE
+
+task create name=PessimisticAnswerTask
+
+task inputfield create name=PessimisticAnswerTask fieldName=mode schemaName=SimpleStringType
+
+task outputfield create name=PessimisticAnswerTask fieldName=decision schemaName=SimpleStringType
+
+task contextref create name=PessimisticAnswerTask albumName=AnswerAlbum
+
+task logic create name=PessimisticAnswerTask logicFlavour=JAVASCRIPT logic=LS
+#MACROFILE:"src/main/resources/logic/PessimisticAnswerTask.js"
+LE
+
+task create name=OptimisticAnswerTask
+
+task inputfield create name=OptimisticAnswerTask fieldName=mode schemaName=SimpleStringType
+
+task outputfield create name=OptimisticAnswerTask fieldName=decision schemaName=SimpleStringType
+
+task contextref create name=OptimisticAnswerTask albumName=AnswerAlbum
+
+task logic create name=OptimisticAnswerTask logicFlavour=JAVASCRIPT logic=LS
+#MACROFILE:"src/main/resources/logic/OptimisticAnswerTask.js"
+LE
+
+task create name=DitheringAnswerTask
+
+task inputfield create name=DitheringAnswerTask fieldName=mode schemaName=SimpleStringType
+
+task outputfield create name=DitheringAnswerTask fieldName=decision schemaName=SimpleStringType
+
+task contextref create name=DitheringAnswerTask albumName=AnswerAlbum
+
+task logic create name=DitheringAnswerTask logicFlavour=JAVASCRIPT logic=LS
+#MACROFILE:"src/main/resources/logic/DitheringAnswerTask.js"
+LE
+
+#task create name=RoundRobinAnswerTask
+#
+#task inputfield create name=RoundRobinAnswerTask fieldName=mode schemaName=SimpleStringType
+#
+#task outputfield create name=RoundRobinAnswerTask fieldName=decision schemaName=SimpleStringType
+#
+#task contextref create name=RoundRobinAnswerTask albumName=AnswerAlbum
+#task contextref create name=RoundRobinAnswerTask albumName=LastAnswerAlbum
+#
+#task logic create name=RoundRobinAnswerTask logicFlavour=JAVASCRIPT logic=LS
+##MACROFILE:"src/main/resources/logic/RoundRobinAnswerTask.js"
+#LE
+
+policy create name=AnswerInitPolicy template=freestyle firstState=AnswerInitState
+
+policy state create name=AnswerInitPolicy stateName=AnswerInitState triggerName=AnswerEvent defaultTaskName=AnswerInitTask
+policy state output create name=AnswerInitPolicy stateName=AnswerInitState outputName=AnswerInitOutput eventName=AnswerEvent
+policy state taskref create name=AnswerInitPolicy stateName=AnswerInitState taskName=AnswerInitTask outputType=DIRECT outputName=AnswerInitOutput
+
+policy create name=DecisionMakerPolicy template=freestyle firstState=MakeDecisionState
+
+policy state create name=DecisionMakerPolicy stateName=MakeDecisionState triggerName=MakeDecisionEvent defaultTaskName=RandomAnswerTask
+policy state output create name=DecisionMakerPolicy stateName=MakeDecisionState outputName=DecisionFinalOutput eventName=DecisionEvent
+policy state taskref create name=DecisionMakerPolicy stateName=MakeDecisionState taskName=RandomAnswerTask outputType=DIRECT outputName=DecisionFinalOutput
+policy state taskref create name=DecisionMakerPolicy stateName=MakeDecisionState taskName=PessimisticAnswerTask outputType=DIRECT outputName=DecisionFinalOutput
+policy state taskref create name=DecisionMakerPolicy stateName=MakeDecisionState taskName=OptimisticAnswerTask outputType=DIRECT outputName=DecisionFinalOutput
+policy state taskref create name=DecisionMakerPolicy stateName=MakeDecisionState taskName=DitheringAnswerTask outputType=DIRECT outputName=DecisionFinalOutput
+#policy state taskref create name=DecisionMakerPolicy stateName=MakeDecisionState taskName=RoundRobinAnswerTask outputType=DIRECT outputName=DecisionFinalOutput
+
+policy state selecttasklogic create name=DecisionMakerPolicy stateName=MakeDecisionState logicFlavour=JAVASCRIPT logic=LS
+#MACROFILE:"src/main/resources/logic/MakeDecisionStateTSL.js"
+LE
+
+validate
+