Fix bug with POJO events in APex

When an envet should be decoded entirely into a POJO
and is too complex for Avro, apex decoding breaks.

This reviuew fixes thsi issue.

Issue-ID: POLICY-1034
Change-Id: Iccd739c4bb5c1645a2a7165f5bbfdfd4b964d79e
Signed-off-by: liamfallon <liam.fallon@ericsson.com>

14 files changed, 1211 insertions, 4 deletions

diff --git a/services/services-engine/src/test/java/org/onap/policy/apex/service/engine/event/TestJsonEventConverter.java b/services/services-engine/src/test/java/org/onap/policy/apex/service/engine/event/TestJsonEventConverter.java
new file mode 100644
index 000000000..471f90425
--- /dev/null
+++ b/services/services-engine/src/test/java/org/onap/policy/apex/service/engine/event/TestJsonEventConverter.java
@@ -0,0 +1,107 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 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=========================================================
+ */
+
+package org.onap.policy.apex.service.engine.event;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.fail;
+
+import org.junit.Test;
+import org.onap.policy.apex.service.engine.event.impl.jsonprotocolplugin.Apex2JsonEventConverter;
+import org.onap.policy.apex.service.engine.event.impl.jsonprotocolplugin.JsonEventProtocolParameters;
+import org.onap.policy.apex.service.parameters.eventprotocol.EventProtocolParameters;
+
+/**
+ * Test the JSON event converter corner cases.
+ *
+ */
+public class TestJsonEventConverter {
+
+    @Test
+    public void testJsonEventConverter() {
+        Apex2JsonEventConverter converter = new Apex2JsonEventConverter();
+
+        try {
+            converter.init(null);
+            fail("test should throw an exception");
+        } catch (Exception ie) {
+            assertEquals("specified consumer properties are not applicable to the JSON event protocol",
+                            ie.getMessage());
+        }
+
+        try {
+            converter.init(new EventProtocolParameters() {
+            });
+            fail("test should throw an exception");
+        } catch (Exception ie) {
+            assertEquals("specified consumer properties are not applicable to the JSON event protocol",
+                            ie.getMessage());
+        }
+
+        JsonEventProtocolParameters pars = new JsonEventProtocolParameters();
+        converter.init(pars);
+
+        try {
+            converter.toApexEvent(null, null);
+            fail("test should throw an exception");
+        } catch (Exception tae) {
+            assertEquals("event processing failed, event is null", tae.getMessage());
+        }
+
+        try {
+            converter.toApexEvent(null, 1);
+            fail("test should throw an exception");
+        } catch (Exception tae) {
+            assertEquals("error converting event \"1\" to a string", tae.getMessage());
+        }
+
+        try {
+            converter.toApexEvent(null, "[{\"aKey\": 1},{\"aKey\": 2}]");
+            fail("test should throw an exception");
+        } catch (Exception tae) {
+            assertEquals("Failed to unmarshal JSON event: incoming event ([{\"aKey\": 1},{\"aKey\": 2}]) "
+                            + "is a JSON object array containing an invalid object "
+                            + "{aKey=1.0}, event=[{\"aKey\": 1},{\"aKey\": 2}]", tae.getMessage());
+        }
+
+        try {
+            converter.toApexEvent(null, "[1,2,3]");
+            fail("test should throw an exception");
+        } catch (Exception tae) {
+            assertEquals("Failed to unmarshal JSON event: incoming event ([1,2,3]) is a JSON object array "
+                            + "containing an invalid object 1.0, event=[1,2,3]", tae.getMessage());
+        }
+
+        try {
+            converter.fromApexEvent(null);
+            fail("test should throw an exception");
+        } catch (Exception tae) {
+            assertEquals("event processing failed, Apex event is null", tae.getMessage());
+        }
+
+        try {
+            converter.fromApexEvent(new ApexEvent("Event", "0.0.1", "a.name.space", "here", "there"));
+            fail("test should throw an exception");
+        } catch (Exception tae) {
+            assertEquals("Model for org.onap.policy.apex.model.eventmodel.concepts.AxEvents not found in model service",
+                            tae.getMessage());
+        }
+    }
+}
diff --git a/services/services-engine/src/test/java/org/onap/policy/apex/service/engine/event/TestJsonEventHandler.java b/services/services-engine/src/test/java/org/onap/policy/apex/service/engine/event/TestJsonEventHandler.java
index cfe2921b8..a9165d792 100644
--- a/services/services-engine/src/test/java/org/onap/policy/apex/service/engine/event/TestJsonEventHandler.java
+++ b/services/services-engine/src/test/java/org/onap/policy/apex/service/engine/event/TestJsonEventHandler.java
@@ -96,7 +96,7 @@ public class TestJsonEventHandler {
     }
 
     /**
-     * Test JSO nto apex event.
+     * Test JSON to apex event.
      *
      * @throws ApexException the apex exception
      */
@@ -134,7 +134,7 @@ public class TestJsonEventHandler {
     }
 
     /**
-     * Test JSO nto apex bad event.
+     * Test JSON to apex bad event.
      *
      * @throws ApexException the apex exception
      */
@@ -292,6 +292,7 @@ public class TestJsonEventHandler {
     public void testApexEventToJson() throws ApexException {
         try {
             final Apex2JsonEventConverter jsonEventConverter = new Apex2JsonEventConverter();
+            jsonEventConverter.init(new JsonEventProtocolParameters());
             assertNotNull(jsonEventConverter);
 
             final Date event0000StartTime = new Date();
diff --git a/services/services-engine/src/test/java/org/onap/policy/apex/service/engine/event/TestJsonEventHandlerForPojo.java b/services/services-engine/src/test/java/org/onap/policy/apex/service/engine/event/TestJsonEventHandlerForPojo.java
new file mode 100644
index 000000000..1dae4c0f4
--- /dev/null
+++ b/services/services-engine/src/test/java/org/onap/policy/apex/service/engine/event/TestJsonEventHandlerForPojo.java
@@ -0,0 +1,245 @@
+/*-
+ * ============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=========================================================
+ */
+
+package org.onap.policy.apex.service.engine.event;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.fail;
+
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.util.List;
+
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.onap.policy.apex.context.parameters.ContextParameterConstants;
+import org.onap.policy.apex.context.parameters.SchemaParameters;
+import org.onap.policy.apex.model.basicmodel.concepts.ApexException;
+import org.onap.policy.apex.model.basicmodel.handling.ApexModelException;
+import org.onap.policy.apex.model.basicmodel.handling.ApexModelReader;
+import org.onap.policy.apex.model.policymodel.concepts.AxPolicyModel;
+import org.onap.policy.apex.model.utilities.TextFileUtils;
+import org.onap.policy.apex.service.engine.event.impl.jsonprotocolplugin.Apex2JsonEventConverter;
+import org.onap.policy.apex.service.engine.event.impl.jsonprotocolplugin.JsonEventProtocolParameters;
+import org.onap.policy.apex.service.engine.event.testpojos.TestPojo;
+import org.onap.policy.apex.service.engine.event.testpojos.TestPojoList;
+import org.onap.policy.common.parameters.ParameterService;
+import org.slf4j.ext.XLogger;
+import org.slf4j.ext.XLoggerFactory;
+
+/**
+ * Test JSON Event Handler.
+ * 
+ * @author Liam Fallon (liam.fallon@ericsson.com)
+ */
+public class TestJsonEventHandlerForPojo {
+    private static final XLogger logger = XLoggerFactory.getXLogger(TestJsonEventHandlerForPojo.class);
+
+    /**
+     * Setup event model.
+     *
+     * @throws IOException Signals that an I/O exception has occurred.
+     * @throws ApexModelException the apex model exception
+     */
+    @BeforeClass
+    public static void setupEventModel() throws IOException, ApexModelException {
+        final String policyModelString = TextFileUtils
+                        .getTextFileAsString("src/test/resources/policymodels/PojoEventModel.json");
+        final ApexModelReader<AxPolicyModel> modelReader = new ApexModelReader<AxPolicyModel>(AxPolicyModel.class);
+        modelReader.setValidateFlag(false);
+        final AxPolicyModel apexPolicyModel = modelReader.read(new ByteArrayInputStream(policyModelString.getBytes()));
+
+        // Set up the models in the model service
+        apexPolicyModel.register();
+    }
+
+    /**
+     * Initialize default schema parameters.
+     */
+    @BeforeClass
+    public static void initializeDefaultSchemaParameters() {
+        ParameterService.clear();
+        final SchemaParameters schemaParameters = new SchemaParameters();
+        schemaParameters.setName(ContextParameterConstants.SCHEMA_GROUP_NAME);
+        ParameterService.register(schemaParameters);
+    }
+
+    /**
+     * Teardown default schema parameters.
+     */
+    @AfterClass
+    public static void teardownDefaultSchemaParameters() {
+        ParameterService.deregister(ContextParameterConstants.SCHEMA_GROUP_NAME);
+    }
+
+    /**
+     * Test POJO to apex event and back.
+     *
+     * @throws ApexException the apex exception
+     * @throws IOException on IO exceptions
+     */
+    @Test
+    public void testJsonPojoToApexEvent() throws ApexException, IOException {
+        final Apex2JsonEventConverter jsonEventConverter = new Apex2JsonEventConverter();
+        assertNotNull(jsonEventConverter);
+
+        JsonEventProtocolParameters pars = new JsonEventProtocolParameters();
+        pars.setPojoField("POJO_PAR");
+        jsonEventConverter.init(pars);
+
+        final String apexEventJsonStringIn = TextFileUtils
+                        .getTextFileAsString("src/test/resources/events/TestPojoEvent.json");
+
+        logger.debug("input event\n" + apexEventJsonStringIn);
+
+        final List<ApexEvent> apexEventList = jsonEventConverter.toApexEvent("PojoEvent", apexEventJsonStringIn);
+        assertEquals(1, apexEventList.size());
+        final ApexEvent apexEvent = apexEventList.get(0);
+        assertNotNull(apexEvent);
+
+        logger.debug(apexEvent.toString());
+
+        assertEquals("PojoEvent", apexEvent.getName());
+        assertEquals("0.0.1", apexEvent.getVersion());
+        assertEquals("org.onap.policy.apex.service.engine.event.testpojos", apexEvent.getNameSpace());
+        assertEquals("Outside", apexEvent.getSource());
+        assertEquals("Apex", apexEvent.getTarget());
+
+        TestPojo testPojo = (TestPojo) apexEvent.get("POJO_PAR");
+
+        assertEquals(1, testPojo.getAnInt());
+        assertEquals(2, testPojo.getAnInteger().intValue());
+        assertEquals("a string", testPojo.getSomeString());
+
+        assertEquals(10, testPojo.getTestSubPojo().getAnInt());
+        assertEquals(20, testPojo.getTestSubPojo().getAnInteger().intValue());
+        assertEquals("a sub string", testPojo.getTestSubPojo().getSomeString());
+
+        assertEquals(100, testPojo.getTestSubPojo().getTestSubSubPojo().getAnInt());
+        assertEquals(200, testPojo.getTestSubPojo().getTestSubSubPojo().getAnInteger().intValue());
+        assertEquals("a sub sub string", testPojo.getTestSubPojo().getTestSubSubPojo().getSomeString());
+
+        String eventBackInJson = (String) jsonEventConverter.fromApexEvent(apexEvent);
+        assertEquals(apexEventJsonStringIn.replaceAll("\\s+", ""), eventBackInJson.replaceAll("\\s+", ""));
+    }
+
+    /**
+     * Test POJO List to apex event and back.
+     *
+     * @throws ApexException the apex exception
+     * @throws IOException on IO exceptions
+     */
+    @Test
+    public void testJsonPojoListToApexEvent() throws ApexException, IOException {
+        final Apex2JsonEventConverter jsonEventConverter = new Apex2JsonEventConverter();
+        assertNotNull(jsonEventConverter);
+
+        JsonEventProtocolParameters pars = new JsonEventProtocolParameters();
+        pars.setPojoField("POJO_LIST_PAR");
+        jsonEventConverter.init(pars);
+
+        final String apexEventJsonStringIn = TextFileUtils
+                        .getTextFileAsString("src/test/resources/events/TestPojoListEvent.json");
+
+        logger.debug("input event\n" + apexEventJsonStringIn);
+
+        final List<ApexEvent> apexEventList = jsonEventConverter.toApexEvent("PojoListEvent", apexEventJsonStringIn);
+        assertEquals(1, apexEventList.size());
+        final ApexEvent apexEvent = apexEventList.get(0);
+        assertNotNull(apexEvent);
+
+        logger.debug(apexEvent.toString());
+
+        assertEquals("PojoListEvent", apexEvent.getName());
+        assertEquals("0.0.1", apexEvent.getVersion());
+        assertEquals("org.onap.policy.apex.service.engine.event.testpojos", apexEvent.getNameSpace());
+        assertEquals("Outside", apexEvent.getSource());
+        assertEquals("Apex", apexEvent.getTarget());
+
+        TestPojoList testPojoList = (TestPojoList) apexEvent.get("POJO_LIST_PAR");
+
+        for (TestPojo testPojo : testPojoList.getTestPojoList()) {
+            assertEquals(1, testPojo.getAnInt());
+            assertEquals(2, testPojo.getAnInteger().intValue());
+            assertEquals("a string", testPojo.getSomeString());
+
+            assertEquals(10, testPojo.getTestSubPojo().getAnInt());
+            assertEquals(20, testPojo.getTestSubPojo().getAnInteger().intValue());
+            assertEquals("a sub string", testPojo.getTestSubPojo().getSomeString());
+
+            assertEquals(100, testPojo.getTestSubPojo().getTestSubSubPojo().getAnInt());
+            assertEquals(200, testPojo.getTestSubPojo().getTestSubSubPojo().getAnInteger().intValue());
+            assertEquals("a sub sub string", testPojo.getTestSubPojo().getTestSubSubPojo().getSomeString());
+        }
+        String eventBackInJson = (String) jsonEventConverter.fromApexEvent(apexEvent);
+        assertEquals(apexEventJsonStringIn.replaceAll("\\s+", ""), eventBackInJson.replaceAll("\\s+", ""));
+    }
+
+    /**
+     * Test POJO event with bad configurations.
+     *
+     * @throws ApexException the apex exception
+     * @throws IOException on IO exceptions
+     */
+    @Test
+    public void testJsonBadPojoApexEvent() throws ApexException, IOException {
+        final Apex2JsonEventConverter jsonEventConverter = new Apex2JsonEventConverter();
+        assertNotNull(jsonEventConverter);
+
+        JsonEventProtocolParameters pars = new JsonEventProtocolParameters();
+        pars.setPojoField("BAD_POJO_PAR");
+        jsonEventConverter.init(pars);
+
+        final String apexEventJsonStringIn = TextFileUtils
+                        .getTextFileAsString("src/test/resources/events/TestPojoEvent.json");
+
+        logger.debug("input event\n" + apexEventJsonStringIn);
+
+        try {
+            jsonEventConverter.toApexEvent("PojoEvent", apexEventJsonStringIn);
+            fail("test should throw an exception");
+        } catch (Exception tae) {
+            assertEquals("Failed to unmarshal JSON event: error parsing PojoEvent:0.0.1 event from Json. "
+                            + "Field BAD_POJO_PAR not found on POJO event definition.",
+                            tae.getMessage().substring(0, 133));
+        }
+
+        pars.setPojoField("POJO_PAR");
+        try {
+            jsonEventConverter.toApexEvent("PojoNoFieldEvent", apexEventJsonStringIn);
+            fail("test should throw an exception");
+        } catch (Exception tae) {
+            assertEquals("Failed to unmarshal JSON event: error parsing PojoNoFieldEvent:0.0.1 event from Json, "
+                            + "Field POJO_PAR not found, no fields defined on event.",
+                            tae.getMessage().substring(0, 139));
+        }
+
+        try {
+            jsonEventConverter.toApexEvent("PojoTooManyFieldsEvent", apexEventJsonStringIn);
+            fail("test should throw an exception");
+        } catch (Exception tae) {
+            assertEquals("Failed to unmarshal JSON event: error parsing PojoTooManyFieldsEvent:0.0.1 event from Json, "
+                            + "Field POJO_PAR, one and only one field may be defined on a POJO event definition.",
+                            tae.getMessage().substring(0, 173));
+        }
+    }
+}
diff --git a/services/services-engine/src/test/java/org/onap/policy/apex/service/engine/event/TestJsonEventProtocolPrameters.java b/services/services-engine/src/test/java/org/onap/policy/apex/service/engine/event/TestJsonEventProtocolPrameters.java
new file mode 100644
index 000000000..139ea6b45
--- /dev/null
+++ b/services/services-engine/src/test/java/org/onap/policy/apex/service/engine/event/TestJsonEventProtocolPrameters.java
@@ -0,0 +1,66 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 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=========================================================
+ */
+
+package org.onap.policy.apex.service.engine.event;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+
+import org.junit.Test;
+import org.onap.policy.apex.service.engine.event.impl.jsonprotocolplugin.JsonEventProtocolParameters;
+
+/**
+ * Test the JSON event parameters.
+ *
+ */
+public class TestJsonEventProtocolPrameters {
+
+    @Test
+    public void testJsonParameters() {
+        assertNotNull(new JsonEventProtocolParameters());
+        
+        JsonEventProtocolParameters params = new JsonEventProtocolParameters();
+
+        params.setLabel("MyLabel");
+        assertEquals("MyLabel", params.getLabel());
+        assertEquals("MyLabel", params.getName());
+
+        params.setEventProtocolPluginClass("MyPluginClass");
+        assertEquals("MyPluginClass", params.getEventProtocolPluginClass());
+        
+        params.setNameAlias("MyNameAlias");
+        assertEquals("MyNameAlias", params.getNameAlias());
+        
+        params.setVersionAlias("MyVersionAlias");
+        assertEquals("MyVersionAlias", params.getVersionAlias());
+        
+        params.setNameSpaceAlias("MyNameSpaceAlias");
+        assertEquals("MyNameSpaceAlias", params.getNameSpaceAlias());
+        
+        params.setSourceAlias("MySourceAlias");
+        assertEquals("MySourceAlias", params.getSourceAlias());
+        
+        params.setTargetAlias("MyTargetAlias");
+        assertEquals("MyTargetAlias", params.getTargetAlias());
+        
+        params.setPojoField("MyPojoField");
+        assertEquals("MyPojoField", params.getPojoField());
+    }
+}
diff --git a/services/services-engine/src/test/java/org/onap/policy/apex/service/engine/event/testpojos/TestPojo.java b/services/services-engine/src/test/java/org/onap/policy/apex/service/engine/event/testpojos/TestPojo.java
new file mode 100644
index 000000000..009b2a756
--- /dev/null
+++ b/services/services-engine/src/test/java/org/onap/policy/apex/service/engine/event/testpojos/TestPojo.java
@@ -0,0 +1,69 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 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=========================================================
+ */
+
+package org.onap.policy.apex.service.engine.event.testpojos;
+
+/**
+ * A test Pojo for pojo decoding and encoding in Apex.
+ */
+public class TestPojo {
+    private int anInt;
+    private Integer anInteger;
+    private String someString;
+    
+    private TestSubPojo testSubPojo;
+
+    /**
+     * Gets the an int.
+     *
+     * @return the an int
+     */
+    public int getAnInt() {
+        return anInt;
+    }
+
+    /**
+     * Gets the an integer.
+     *
+     * @return the an integer
+     */
+    public Integer getAnInteger() {
+        return anInteger;
+    }
+
+    /**
+     * Gets the a string.
+     *
+     * @return the a string
+     */
+    public String getSomeString() {
+        return someString;
+    }
+
+    /**
+     * Gets the test sub pojo.
+     *
+     * @return the test sub pojo
+     */
+    public TestSubPojo getTestSubPojo() {
+        return testSubPojo;
+    }
+
+}
diff --git a/services/services-engine/src/test/java/org/onap/policy/apex/service/engine/event/testpojos/TestPojoList.java b/services/services-engine/src/test/java/org/onap/policy/apex/service/engine/event/testpojos/TestPojoList.java
new file mode 100644
index 000000000..0b39a30dc
--- /dev/null
+++ b/services/services-engine/src/test/java/org/onap/policy/apex/service/engine/event/testpojos/TestPojoList.java
@@ -0,0 +1,39 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 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=========================================================
+ */
+
+package org.onap.policy.apex.service.engine.event.testpojos;
+
+import java.util.List;
+
+/**
+ * A test list of POJO for decoding and encoding.
+ */
+public class TestPojoList {
+    private List<TestPojo> testPojoList;
+
+    /**
+     * Gets the test pojo list.
+     *
+     * @return the test pojo list
+     */
+    public List<TestPojo> getTestPojoList() {
+        return testPojoList;
+    }
+}
diff --git a/services/services-engine/src/test/java/org/onap/policy/apex/service/engine/event/testpojos/TestSubPojo.java b/services/services-engine/src/test/java/org/onap/policy/apex/service/engine/event/testpojos/TestSubPojo.java
new file mode 100644
index 000000000..f5ea80efc
--- /dev/null
+++ b/services/services-engine/src/test/java/org/onap/policy/apex/service/engine/event/testpojos/TestSubPojo.java
@@ -0,0 +1,69 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 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=========================================================
+ */
+
+package org.onap.policy.apex.service.engine.event.testpojos;
+
+/**
+ * A test Pojo for pojo decoding and encoding in Apex.
+ */
+public class TestSubPojo {
+    private int anInt;
+    private Integer anInteger;
+    private String someString;
+    
+    private TestSubSubPojo testSubSubPojo;
+
+    /**
+     * Gets the an int.
+     *
+     * @return the an int
+     */
+    public int getAnInt() {
+        return anInt;
+    }
+
+    /**
+     * Gets the an integer.
+     *
+     * @return the an integer
+     */
+    public Integer getAnInteger() {
+        return anInteger;
+    }
+
+    /**
+     * Gets the a string.
+     *
+     * @return the a string
+     */
+    public String getSomeString() {
+        return someString;
+    }
+
+    /**
+     * Gets the test sub sub pojo.
+     *
+     * @return the test sub sub pojo
+     */
+    public TestSubSubPojo getTestSubSubPojo() {
+        return testSubSubPojo;
+    }
+
+}
diff --git a/services/services-engine/src/test/java/org/onap/policy/apex/service/engine/event/testpojos/TestSubSubPojo.java b/services/services-engine/src/test/java/org/onap/policy/apex/service/engine/event/testpojos/TestSubSubPojo.java
new file mode 100644
index 000000000..8e027f5d6
--- /dev/null
+++ b/services/services-engine/src/test/java/org/onap/policy/apex/service/engine/event/testpojos/TestSubSubPojo.java
@@ -0,0 +1,57 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 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=========================================================
+ */
+
+package org.onap.policy.apex.service.engine.event.testpojos;
+
+/**
+ * A test Pojo for pojo decoding and encoding in Apex.
+ */
+public class TestSubSubPojo {
+    private int anInt;
+    private Integer anInteger;
+    private String someString;
+
+    /**
+     * Gets the an int.
+     *
+     * @return the an int
+     */
+    public int getAnInt() {
+        return anInt;
+    }
+
+    /**
+     * Gets the an integer.
+     *
+     * @return the an integer
+     */
+    public Integer getAnInteger() {
+        return anInteger;
+    }
+
+    /**
+     * Gets the a string.
+     *
+     * @return the a string
+     */
+    public String getSomeString() {
+        return someString;
+    }
+}
diff --git a/services/services-engine/src/test/java/org/onap/policy/apex/service/engine/parameters/dummyclasses/SuperTokenDelimitedEventProtocolParameters.java b/services/services-engine/src/test/java/org/onap/policy/apex/service/engine/parameters/dummyclasses/SuperTokenDelimitedEventProtocolParameters.java
index 7ae403726..8af9d57d9 100644
--- a/services/services-engine/src/test/java/org/onap/policy/apex/service/engine/parameters/dummyclasses/SuperTokenDelimitedEventProtocolParameters.java
+++ b/services/services-engine/src/test/java/org/onap/policy/apex/service/engine/parameters/dummyclasses/SuperTokenDelimitedEventProtocolParameters.java
@@ -20,7 +20,6 @@
 
 package org.onap.policy.apex.service.engine.parameters.dummyclasses;
 
-import org.onap.policy.apex.service.engine.event.impl.jsonprotocolplugin.JsonEventProtocolParameters;
 import org.onap.policy.apex.service.parameters.eventprotocol.EventProtocolTextTokenDelimitedParameters;
 
 /**
@@ -38,7 +37,7 @@ public class SuperTokenDelimitedEventProtocolParameters extends EventProtocolTex
      * the parameter service.
      */
     public SuperTokenDelimitedEventProtocolParameters() {
-        super(JsonEventProtocolParameters.class.getCanonicalName());
+        super();
 
         // Set the event protocol properties for the JSON carrier technology
         this.setLabel(SUPER_TOKEN_EVENT_PROTOCOL_LABEL);
diff --git a/services/services-engine/src/test/resources/events/TestPojoEvent.json b/services/services-engine/src/test/resources/events/TestPojoEvent.json
new file mode 100644
index 000000000..ce2cb2b6b
--- /dev/null
+++ b/services/services-engine/src/test/resources/events/TestPojoEvent.json
@@ -0,0 +1,15 @@
+{
+    "anInt": 1,
+    "anInteger": 2,
+    "someString": "a string",
+    "testSubPojo": {
+        "anInt": 10,
+        "anInteger": 20,
+        "someString": "a sub string",
+        "testSubSubPojo": {
+            "anInt": 100,
+            "anInteger": 200,
+            "someString": "a sub sub string"
+        }
+    }
+}
diff --git a/services/services-engine/src/test/resources/events/TestPojoEventList.json b/services/services-engine/src/test/resources/events/TestPojoEventList.json
new file mode 100644
index 000000000..3c0d7bf3e
--- /dev/null
+++ b/services/services-engine/src/test/resources/events/TestPojoEventList.json
@@ -0,0 +1,77 @@
+[
+    {
+        "anInt": 1,
+        "anInteger": 2,
+        "someString": "a string",
+        "testSubPojo": {
+            "anInt": 10,
+            "anInteger": 20,
+            "someString": "a sub string",
+            "testSubSubPojo": {
+                "anInt": 100,
+                "anInteger": 200,
+                "someString": "a sub sub string"
+            }
+        }
+    },
+    {
+        "anInt": 1,
+        "anInteger": 2,
+        "someString": "a string",
+        "testSubPojo": {
+            "anInt": 10,
+            "anInteger": 20,
+            "someString": "a sub string",
+            "testSubSubPojo": {
+                "anInt": 100,
+                "anInteger": 200,
+                "someString": "a sub sub string"
+            }
+        }
+    },
+    {
+        "anInt": 1,
+        "anInteger": 2,
+        "someString": "a string",
+        "testSubPojo": {
+            "anInt": 10,
+            "anInteger": 20,
+            "someString": "a sub string",
+            "testSubSubPojo": {
+                "anInt": 100,
+                "anInteger": 200,
+                "someString": "a sub sub string"
+            }
+        }
+    },
+    {
+        "anInt": 1,
+        "anInteger": 2,
+        "someString": "a string",
+        "testSubPojo": {
+            "anInt": 10,
+            "anInteger": 20,
+            "someString": "a sub string",
+            "testSubSubPojo": {
+                "anInt": 100,
+                "anInteger": 200,
+                "someString": "a sub sub string"
+            }
+        }
+    },
+    {
+        "anInt": 1,
+        "anInteger": 2,
+        "someString": "a string",
+        "testSubPojo": {
+            "anInt": 10,
+            "anInteger": 20,
+            "someString": "a sub string",
+            "testSubSubPojo": {
+                "anInt": 100,
+                "anInteger": 200,
+                "someString": "a sub sub string"
+            }
+        }
+    }
+]
diff --git a/services/services-engine/src/test/resources/events/TestPojoListEvent.json b/services/services-engine/src/test/resources/events/TestPojoListEvent.json
new file mode 100644
index 000000000..c3e38568e
--- /dev/null
+++ b/services/services-engine/src/test/resources/events/TestPojoListEvent.json
@@ -0,0 +1,79 @@
+{
+    "testPojoList": [
+        {
+            "anInt": 1,
+            "anInteger": 2,
+            "someString": "a string",
+            "testSubPojo": {
+                "anInt": 10,
+                "anInteger": 20,
+                "someString": "a sub string",
+                "testSubSubPojo": {
+                    "anInt": 100,
+                    "anInteger": 200,
+                    "someString": "a sub sub string"
+                }
+            }
+        },
+        {
+            "anInt": 1,
+            "anInteger": 2,
+            "someString": "a string",
+            "testSubPojo": {
+                "anInt": 10,
+                "anInteger": 20,
+                "someString": "a sub string",
+                "testSubSubPojo": {
+                    "anInt": 100,
+                    "anInteger": 200,
+                    "someString": "a sub sub string"
+                }
+            }
+        },
+        {
+            "anInt": 1,
+            "anInteger": 2,
+            "someString": "a string",
+            "testSubPojo": {
+                "anInt": 10,
+                "anInteger": 20,
+                "someString": "a sub string",
+                "testSubSubPojo": {
+                    "anInt": 100,
+                    "anInteger": 200,
+                    "someString": "a sub sub string"
+                }
+            }
+        },
+        {
+            "anInt": 1,
+            "anInteger": 2,
+            "someString": "a string",
+            "testSubPojo": {
+                "anInt": 10,
+                "anInteger": 20,
+                "someString": "a sub string",
+                "testSubSubPojo": {
+                    "anInt": 100,
+                    "anInteger": 200,
+                    "someString": "a sub sub string"
+                }
+            }
+        },
+        {
+            "anInt": 1,
+            "anInteger": 2,
+            "someString": "a string",
+            "testSubPojo": {
+                "anInt": 10,
+                "anInteger": 20,
+                "someString": "a sub string",
+                "testSubSubPojo": {
+                    "anInt": 100,
+                    "anInteger": 200,
+                    "someString": "a sub sub string"
+                }
+            }
+        }
+    ]
+}
diff --git a/services/services-engine/src/test/resources/policymodels/PojoEventModel.apex b/services/services-engine/src/test/resources/policymodels/PojoEventModel.apex
new file mode 100644
index 000000000..b7153a317
--- /dev/null
+++ b/services/services-engine/src/test/resources/policymodels/PojoEventModel.apex
@@ -0,0 +1,19 @@
+model create name=PojoEventModel version=0.0.1
+
+schema create name=TestPojoType version=0.0.1 flavour=Java schema=org.onap.policy.apex.service.engine.event.testpojos.TestPojo
+schema create name=TestPojoListType version=0.0.1 flavour=Java schema=org.onap.policy.apex.service.engine.event.testpojos.TestPojoList
+
+event create name=PojoEvent version=0.0.1 nameSpace=org.onap.policy.apex.service.engine.event.testpojos source=Outside target=Apex
+
+event parameter create name=PojoEvent version=0.0.1 parName=POJO_PAR schemaName=TestPojoType
+
+event create name=PojoListEvent version=0.0.1 nameSpace=org.onap.policy.apex.service.engine.event.testpojos source=Outside target=Apex
+
+event parameter create name=PojoListEvent version=0.0.1 parName=POJO_LIST_PAR schemaName=TestPojoListType
+
+event create name=PojoNoFieldEvent version=0.0.1 nameSpace=org.onap.policy.apex.service.engine.event.testpojos source=Outside target=Apex
+
+event create name=PojoTooManyFieldsEvent version=0.0.1 nameSpace=org.onap.policy.apex.service.engine.event.testpojos source=Outside target=Apex
+event parameter create name=PojoTooManyFieldsEvent version=0.0.1 parName=POJO_LIST_PAR0 schemaName=TestPojoListType
+event parameter create name=PojoTooManyFieldsEvent version=0.0.1 parName=POJO_LIST_PAR1 schemaName=TestPojoListType
+
diff --git a/services/services-engine/src/test/resources/policymodels/PojoEventModel.json b/services/services-engine/src/test/resources/policymodels/PojoEventModel.json
new file mode 100644
index 000000000..3bd04a375
--- /dev/null
+++ b/services/services-engine/src/test/resources/policymodels/PojoEventModel.json
@@ -0,0 +1,365 @@
+{
+   "apexPolicyModel" : {
+      "key" : {
+         "name" : "PojoEventModel",
+         "version" : "0.0.1"
+      },
+      "keyInformation" : {
+         "key" : {
+            "name" : "PojoEventModel_KeyInfo",
+            "version" : "0.0.1"
+         },
+         "keyInfoMap" : {
+            "entry" : [ {
+               "key" : {
+                  "name" : "PojoEvent",
+                  "version" : "0.0.1"
+               },
+               "value" : {
+                  "key" : {
+                     "name" : "PojoEvent",
+                     "version" : "0.0.1"
+                  },
+                  "UUID" : "60411084-d846-3681-9ba7-093bacfd78d2",
+                  "description" : "Generated description for concept referred to by key \"PojoEvent:0.0.1\""
+               }
+            }, {
+               "key" : {
+                  "name" : "PojoEventModel",
+                  "version" : "0.0.1"
+               },
+               "value" : {
+                  "key" : {
+                     "name" : "PojoEventModel",
+                     "version" : "0.0.1"
+                  },
+                  "UUID" : "1a77f36c-7dd2-3188-91d1-5839114f3a3f",
+                  "description" : "Generated description for concept referred to by key \"PojoEventModel:0.0.1\""
+               }
+            }, {
+               "key" : {
+                  "name" : "PojoEventModel_Albums",
+                  "version" : "0.0.1"
+               },
+               "value" : {
+                  "key" : {
+                     "name" : "PojoEventModel_Albums",
+                     "version" : "0.0.1"
+                  },
+                  "UUID" : "b8fe7c9c-2445-3cb0-a671-da2d380e418a",
+                  "description" : "Generated description for concept referred to by key \"PojoEventModel_Albums:0.0.1\""
+               }
+            }, {
+               "key" : {
+                  "name" : "PojoEventModel_Events",
+                  "version" : "0.0.1"
+               },
+               "value" : {
+                  "key" : {
+                     "name" : "PojoEventModel_Events",
+                     "version" : "0.0.1"
+                  },
+                  "UUID" : "fb9f68f9-f5b7-361a-8b8e-df1fe987084e",
+                  "description" : "Generated description for concept referred to by key \"PojoEventModel_Events:0.0.1\""
+               }
+            }, {
+               "key" : {
+                  "name" : "PojoEventModel_KeyInfo",
+                  "version" : "0.0.1"
+               },
+               "value" : {
+                  "key" : {
+                     "name" : "PojoEventModel_KeyInfo",
+                     "version" : "0.0.1"
+                  },
+                  "UUID" : "2156f4d7-cfb2-3e15-ab78-4aced50730bf",
+                  "description" : "Generated description for concept referred to by key \"PojoEventModel_KeyInfo:0.0.1\""
+               }
+            }, {
+               "key" : {
+                  "name" : "PojoEventModel_Policies",
+                  "version" : "0.0.1"
+               },
+               "value" : {
+                  "key" : {
+                     "name" : "PojoEventModel_Policies",
+                     "version" : "0.0.1"
+                  },
+                  "UUID" : "45fd6cff-59de-3511-8398-8a88ad01cd1a",
+                  "description" : "Generated description for concept referred to by key \"PojoEventModel_Policies:0.0.1\""
+               }
+            }, {
+               "key" : {
+                  "name" : "PojoEventModel_Schemas",
+                  "version" : "0.0.1"
+               },
+               "value" : {
+                  "key" : {
+                     "name" : "PojoEventModel_Schemas",
+                     "version" : "0.0.1"
+                  },
+                  "UUID" : "9081b534-62db-384a-b7cc-4e5fc1d781b3",
+                  "description" : "Generated description for concept referred to by key \"PojoEventModel_Schemas:0.0.1\""
+               }
+            }, {
+               "key" : {
+                  "name" : "PojoEventModel_Tasks",
+                  "version" : "0.0.1"
+               },
+               "value" : {
+                  "key" : {
+                     "name" : "PojoEventModel_Tasks",
+                     "version" : "0.0.1"
+                  },
+                  "UUID" : "1e917c60-b5e5-3849-83ca-27d795a633a9",
+                  "description" : "Generated description for concept referred to by key \"PojoEventModel_Tasks:0.0.1\""
+               }
+            }, {
+               "key" : {
+                  "name" : "PojoListEvent",
+                  "version" : "0.0.1"
+               },
+               "value" : {
+                  "key" : {
+                     "name" : "PojoListEvent",
+                     "version" : "0.0.1"
+                  },
+                  "UUID" : "d9627e71-18ac-38d7-b033-33a704132afc",
+                  "description" : "Generated description for concept referred to by key \"PojoListEvent:0.0.1\""
+               }
+            }, {
+               "key" : {
+                  "name" : "PojoNoFieldEvent",
+                  "version" : "0.0.1"
+               },
+               "value" : {
+                  "key" : {
+                     "name" : "PojoNoFieldEvent",
+                     "version" : "0.0.1"
+                  },
+                  "UUID" : "d42ab6d1-9b39-3d94-9a65-d47c116a478f",
+                  "description" : "Generated description for concept referred to by key \"PojoNoFieldEvent:0.0.1\""
+               }
+            }, {
+               "key" : {
+                  "name" : "PojoTooManyFieldsEvent",
+                  "version" : "0.0.1"
+               },
+               "value" : {
+                  "key" : {
+                     "name" : "PojoTooManyFieldsEvent",
+                     "version" : "0.0.1"
+                  },
+                  "UUID" : "1d33d978-297f-3253-b9c6-f0bc9dc63e24",
+                  "description" : "Generated description for concept referred to by key \"PojoTooManyFieldsEvent:0.0.1\""
+               }
+            }, {
+               "key" : {
+                  "name" : "TestPojoListType",
+                  "version" : "0.0.1"
+               },
+               "value" : {
+                  "key" : {
+                     "name" : "TestPojoListType",
+                     "version" : "0.0.1"
+                  },
+                  "UUID" : "ad74efe5-833f-30e5-837c-0d9ae607e4a2",
+                  "description" : "Generated description for concept referred to by key \"TestPojoListType:0.0.1\""
+               }
+            }, {
+               "key" : {
+                  "name" : "TestPojoType",
+                  "version" : "0.0.1"
+               },
+               "value" : {
+                  "key" : {
+                     "name" : "TestPojoType",
+                     "version" : "0.0.1"
+                  },
+                  "UUID" : "254c248e-f172-3871-83aa-4de45f01b6c7",
+                  "description" : "Generated description for concept referred to by key \"TestPojoType:0.0.1\""
+               }
+            } ]
+         }
+      },
+      "policies" : {
+         "key" : {
+            "name" : "PojoEventModel_Policies",
+            "version" : "0.0.1"
+         },
+         "policyMap" : {
+            "entry" : [ ]
+         }
+      },
+      "tasks" : {
+         "key" : {
+            "name" : "PojoEventModel_Tasks",
+            "version" : "0.0.1"
+         },
+         "taskMap" : {
+            "entry" : [ ]
+         }
+      },
+      "events" : {
+         "key" : {
+            "name" : "PojoEventModel_Events",
+            "version" : "0.0.1"
+         },
+         "eventMap" : {
+            "entry" : [ {
+               "key" : {
+                  "name" : "PojoEvent",
+                  "version" : "0.0.1"
+               },
+               "value" : {
+                  "key" : {
+                     "name" : "PojoEvent",
+                     "version" : "0.0.1"
+                  },
+                  "nameSpace" : "org.onap.policy.apex.service.engine.event.testpojos",
+                  "source" : "Outside",
+                  "target" : "Apex",
+                  "parameter" : {
+                     "entry" : [ {
+                        "key" : "POJO_PAR",
+                        "value" : {
+                           "key" : "POJO_PAR",
+                           "fieldSchemaKey" : {
+                              "name" : "TestPojoType",
+                              "version" : "0.0.1"
+                           },
+                           "optional" : false
+                        }
+                     } ]
+                  }
+               }
+            }, {
+               "key" : {
+                  "name" : "PojoListEvent",
+                  "version" : "0.0.1"
+               },
+               "value" : {
+                  "key" : {
+                     "name" : "PojoListEvent",
+                     "version" : "0.0.1"
+                  },
+                  "nameSpace" : "org.onap.policy.apex.service.engine.event.testpojos",
+                  "source" : "Outside",
+                  "target" : "Apex",
+                  "parameter" : {
+                     "entry" : [ {
+                        "key" : "POJO_LIST_PAR",
+                        "value" : {
+                           "key" : "POJO_LIST_PAR",
+                           "fieldSchemaKey" : {
+                              "name" : "TestPojoListType",
+                              "version" : "0.0.1"
+                           },
+                           "optional" : false
+                        }
+                     } ]
+                  }
+               }
+            }, {
+               "key" : {
+                  "name" : "PojoNoFieldEvent",
+                  "version" : "0.0.1"
+               },
+               "value" : {
+                  "key" : {
+                     "name" : "PojoNoFieldEvent",
+                     "version" : "0.0.1"
+                  },
+                  "nameSpace" : "org.onap.policy.apex.service.engine.event.testpojos",
+                  "source" : "Outside",
+                  "target" : "Apex",
+                  "parameter" : {
+                     "entry" : [ ]
+                  }
+               }
+            }, {
+               "key" : {
+                  "name" : "PojoTooManyFieldsEvent",
+                  "version" : "0.0.1"
+               },
+               "value" : {
+                  "key" : {
+                     "name" : "PojoTooManyFieldsEvent",
+                     "version" : "0.0.1"
+                  },
+                  "nameSpace" : "org.onap.policy.apex.service.engine.event.testpojos",
+                  "source" : "Outside",
+                  "target" : "Apex",
+                  "parameter" : {
+                     "entry" : [ {
+                        "key" : "POJO_LIST_PAR0",
+                        "value" : {
+                           "key" : "POJO_LIST_PAR0",
+                           "fieldSchemaKey" : {
+                              "name" : "TestPojoListType",
+                              "version" : "0.0.1"
+                           },
+                           "optional" : false
+                        }
+                     }, {
+                        "key" : "POJO_LIST_PAR1",
+                        "value" : {
+                           "key" : "POJO_LIST_PAR1",
+                           "fieldSchemaKey" : {
+                              "name" : "TestPojoListType",
+                              "version" : "0.0.1"
+                           },
+                           "optional" : false
+                        }
+                     } ]
+                  }
+               }
+            } ]
+         }
+      },
+      "albums" : {
+         "key" : {
+            "name" : "PojoEventModel_Albums",
+            "version" : "0.0.1"
+         },
+         "albums" : {
+            "entry" : [ ]
+         }
+      },
+      "schemas" : {
+         "key" : {
+            "name" : "PojoEventModel_Schemas",
+            "version" : "0.0.1"
+         },
+         "schemas" : {
+            "entry" : [ {
+               "key" : {
+                  "name" : "TestPojoListType",
+                  "version" : "0.0.1"
+               },
+               "value" : {
+                  "key" : {
+                     "name" : "TestPojoListType",
+                     "version" : "0.0.1"
+                  },
+                  "schemaFlavour" : "Java",
+                  "schemaDefinition" : "org.onap.policy.apex.service.engine.event.testpojos.TestPojoList"
+               }
+            }, {
+               "key" : {
+                  "name" : "TestPojoType",
+                  "version" : "0.0.1"
+               },
+               "value" : {
+                  "key" : {
+                     "name" : "TestPojoType",
+                     "version" : "0.0.1"
+                  },
+                  "schemaFlavour" : "Java",
+                  "schemaDefinition" : "org.onap.policy.apex.service.engine.event.testpojos.TestPojo"
+               }
+            } ]
+         }
+      }
+   }
+}