Add Mapping

Change-Id: I417b7fe9d0e588c6c38dc23eb55e43a85e277e81
Issue-ID: DCAEGEN2-1216
Signed-off-by: JoeOLeary <joseph.o.leary@est.tech>

1 files changed, 87 insertions, 0 deletions

diff --git a/src/test/java/utils/EventUtils.java b/src/test/java/utils/EventUtils.java
new file mode 100644
index 0000000..b265f1d
--- /dev/null
+++ b/src/test/java/utils/EventUtils.java
@@ -0,0 +1,87 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2019 Nordix Foundation.
+ * ================================================================================
+ * 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 utils;
+
+import static org.junit.jupiter.api.Assertions.fail;
+import static org.mockito.Mockito.RETURNS_DEEP_STUBS;
+import static org.mockito.Mockito.mock;
+
+import com.google.gson.Gson;
+import io.undertow.server.HttpServerExchange;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+import org.onap.dcaegen2.services.pmmapper.model.Event;
+import org.onap.dcaegen2.services.pmmapper.model.EventMetadata;
+import org.slf4j.MDC;
+
+public class EventUtils {
+
+
+    /**
+     * reads contents of files inside the eventBodyDirectory, combines contents with metadata to make an Event Object.
+     * Fails test in the event of failure to read a file.
+     * @param eventBodyDirectory Path to directory with event body files.
+     * @param metadataPath Path to file with metadata object.
+     * @return List of Events containing the body as acquired from files inside eventBodyDirectory.
+     * @throws IOException in the event it fails to read from the files.
+     */
+    public static List<Event> eventsFromDirectory(Path eventBodyDirectory, Path metadataPath) throws IOException {
+        EventMetadata eventMetadata = new Gson().fromJson(fileContentsToString(metadataPath), EventMetadata.class);
+        try (Stream<Path> eventFileStream = Files.walk(eventBodyDirectory)) {
+            return eventFileStream.filter(Files::isRegularFile)
+                    .filter(Files::isReadable)
+                    .map(EventUtils::fileContentsToString)
+                    .map(body -> EventUtils.makeMockEvent(body, eventMetadata))
+                    .collect(Collectors.toList());
+        }
+    }
+
+    /**
+     * reads contents of file into a string.
+     * fails a tests in the event failure occurs.
+     * @param path path to file.
+     * @return string containing files contents
+     */
+    public static String fileContentsToString(Path path) {
+        try {
+            return new String(Files.readAllBytes(path));
+        } catch (IOException exception) {
+            fail("IOException occurred while generating events.");
+        }
+        return null;
+    }
+
+    /**
+     * @param body body for the event.
+     * @param eventMetadata metadata for the event.
+     * @return event with mock HttpServerExchange
+     */
+    public static Event makeMockEvent(String body, EventMetadata eventMetadata) {
+        return new Event(mock(HttpServerExchange.class, RETURNS_DEEP_STUBS), body, eventMetadata, new HashMap<>());
+    }
+}