Update published event to include header and body

Originally, the published event only contained the raw graph
request payload.
This has now been updated to include the following changes:
- encapsulate the graph request in a body property
- add new event header with details such as timestamp, request-id,
  event-type

Issue-ID: AAI-954

Change-Id: I780b6f52a01aafdcd7d09156e9d3a99c25be90a3
Signed-off-by: Michael Arrastia <MArrasti@amdocs.com>

3 files changed, 117 insertions, 0 deletions

diff --git a/src/test/java/org/onap/crud/event/GraphEventEnvelopeTest.java b/src/test/java/org/onap/crud/event/GraphEventEnvelopeTest.java
new file mode 100644
index 0000000..51100d5
--- /dev/null
+++ b/src/test/java/org/onap/crud/event/GraphEventEnvelopeTest.java
@@ -0,0 +1,48 @@
+package org.onap.crud.event;
+
+import static org.hamcrest.Matchers.is;
+import static org.junit.Assert.assertThat;
+import org.junit.Test;
+import org.onap.crud.entity.Vertex;
+import org.onap.crud.event.GraphEvent.GraphEventOperation;
+import org.onap.crud.event.envelope.GraphEventEnvelope;
+import org.onap.crud.test.util.TestUtil;
+import org.skyscreamer.jsonassert.Customization;
+import org.skyscreamer.jsonassert.JSONAssert;
+import org.skyscreamer.jsonassert.JSONCompareMode;
+import org.skyscreamer.jsonassert.comparator.CustomComparator;
+import com.google.gson.Gson;
+import com.google.gson.JsonElement;
+
+public class GraphEventEnvelopeTest {
+
+    @Test
+    public void testPublishedEventFormat() throws Exception {
+        String expectedEnvelope = TestUtil.getFileAsString("event/event-envelope.json");
+
+        GraphEvent body = GraphEvent.builder(GraphEventOperation.CREATE)
+                .vertex(GraphEventVertex.fromVertex(new Vertex.Builder("pserver").build(), "v13")).build();
+        String graphEventEnvelope = new GraphEventEnvelope(body).toJson();
+
+        JSONAssert.assertEquals(expectedEnvelope, graphEventEnvelope,
+                new CustomComparator(JSONCompareMode.STRICT, new Customization("header.request-id", (o1, o2) -> true),
+                        new Customization("header.timestamp", (o1, o2) -> true),
+                        new Customization("body.timestamp", (o1, o2) -> true),
+                        new Customization("body.transaction-id", (o1, o2) -> true)));
+
+        Gson gson = new Gson();
+        GraphEventEnvelope envelope = gson.fromJson(graphEventEnvelope, GraphEventEnvelope.class);
+        assertThat(envelope.getHeader().getRequestId(), is(envelope.getBody().getTransactionId()));
+    }
+
+    @Test
+    public void testConsumedEventFormat() throws Exception {
+        String expectedEnvelope = TestUtil.getFileAsString("event/event-envelope-sentinel.json");
+        Gson gson = new Gson();
+        GraphEventEnvelope envelope = gson.fromJson(expectedEnvelope, GraphEventEnvelope.class);
+        JsonElement jsonElement = envelope.getPolicyViolations().getAsJsonArray().get(0);
+
+        assertThat(jsonElement.getAsJsonObject().get("summary").getAsString(), is("a summary"));
+        assertThat(jsonElement.getAsJsonObject().get("policyName").getAsString(), is("a policy name"));
+    }
+}
diff --git a/src/test/java/org/onap/crud/event/response/GraphEventResponseHandlerTest.java b/src/test/java/org/onap/crud/event/response/GraphEventResponseHandlerTest.java
new file mode 100644
index 0000000..5c0da98
--- /dev/null
+++ b/src/test/java/org/onap/crud/event/response/GraphEventResponseHandlerTest.java
@@ -0,0 +1,31 @@
+package org.onap.crud.event.response;
+
+import static org.hamcrest.Matchers.is;
+import static org.junit.Assert.assertThat;
+import org.junit.Test;
+import org.onap.crud.event.envelope.GraphEventEnvelope;
+import org.onap.crud.test.util.TestUtil;
+import com.google.gson.Gson;
+
+public class GraphEventResponseHandlerTest {
+
+    @Test
+    public void testPolicyViolationsNotDetected() throws Exception {
+        String expectedEnvelope = TestUtil.getFileAsString("event/event-envelope-sentinel-no-violations.json");
+        Gson gson = new Gson();
+        GraphEventEnvelope envelope = gson.fromJson(expectedEnvelope, GraphEventEnvelope.class);
+
+        GraphEventResponseHandler graphEventResponseHandler = new GraphEventResponseHandler();
+        assertThat(graphEventResponseHandler.hasPolicyViolations(envelope), is(false));
+    }
+
+    @Test
+    public void testPolicyViolationsDetected() throws Exception {
+        String expectedEnvelope = TestUtil.getFileAsString("event/event-envelope-sentinel.json");
+        Gson gson = new Gson();
+        GraphEventEnvelope envelope = gson.fromJson(expectedEnvelope, GraphEventEnvelope.class);
+
+        GraphEventResponseHandler graphEventResponseHandler = new GraphEventResponseHandler();
+        assertThat(graphEventResponseHandler.hasPolicyViolations(envelope), is(true));
+    }
+}
diff --git a/src/test/java/org/onap/crud/test/util/TestUtil.java b/src/test/java/org/onap/crud/test/util/TestUtil.java
new file mode 100644
index 0000000..69732ae
--- /dev/null
+++ b/src/test/java/org/onap/crud/test/util/TestUtil.java
@@ -0,0 +1,38 @@
+package org.onap.crud.test.util;
+
+import java.io.File;
+import java.io.IOException;
+import java.net.URISyntaxException;
+import java.net.URL;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+
+/**
+ * Helper methods for locating and reading test data files.
+ *
+ */
+public class TestUtil {
+
+    public static Path getPath(String resourceFilename) throws URISyntaxException {
+        URL resource = ClassLoader.getSystemResource(resourceFilename);
+        if (resource != null) {
+            return Paths.get(resource.toURI());
+        }
+
+        // If the resource is not found relative to the classpath, try to get it from the file system directly.
+        File file = new File(resourceFilename);
+        if (!file.exists()) {
+            throw new RuntimeException("Resource does not exist: " + resourceFilename);
+        }
+        return file.toPath();
+    }
+
+    public static String getContentUtf8(Path filePath) throws IOException {
+        return new String(Files.readAllBytes(filePath));
+    }
+
+    public static String getFileAsString(String resourceFilename) throws IOException, URISyntaxException {
+        return getContentUtf8(getPath(resourceFilename));
+    }
+}