check for null before setting headers

check for null before setting headers

Issue-ID: SO-2356
Signed-off-by: Benjamin, Max (mb388a) <mb388a@att.com>
Change-Id: I51bd332b13f687df09bc80489cf93baebc84ceb8

2 files changed, 99 insertions, 1 deletions

diff --git a/common/src/main/java/org/onap/so/client/dmaap/rest/DMaaPRestClient.java b/common/src/main/java/org/onap/so/client/dmaap/rest/DMaaPRestClient.java
index b0ffb9358c..e0c8d4ba80 100644
--- a/common/src/main/java/org/onap/so/client/dmaap/rest/DMaaPRestClient.java
+++ b/common/src/main/java/org/onap/so/client/dmaap/rest/DMaaPRestClient.java
@@ -52,6 +52,8 @@ public class DMaaPRestClient extends RestClient {
         }
         String onapRequestId = UUID.randomUUID().toString();
         headerMap.put(ONAPLogConstants.Headers.REQUEST_ID, onapRequestId);
-        headerMap.put(ONAPLogConstants.Headers.INVOCATION_ID, MDC.get(ONAPLogConstants.MDCs.REQUEST_ID));
+        if (MDC.get(ONAPLogConstants.MDCs.REQUEST_ID) != null) {
+            headerMap.put(ONAPLogConstants.Headers.INVOCATION_ID, MDC.get(ONAPLogConstants.MDCs.REQUEST_ID));
+        }
     }
 }
diff --git a/common/src/test/java/org/onap/so/client/dmaap/rest/DMaaPRestClientTest.java b/common/src/test/java/org/onap/so/client/dmaap/rest/DMaaPRestClientTest.java
new file mode 100644
index 0000000000..8006423e75
--- /dev/null
+++ b/common/src/test/java/org/onap/so/client/dmaap/rest/DMaaPRestClientTest.java
@@ -0,0 +1,96 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP - SO
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.so.client.dmaap.rest;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.util.HashMap;
+import java.util.Map;
+import org.junit.Test;
+import org.onap.logging.ref.slf4j.ONAPLogConstants;
+import org.slf4j.MDC;
+
+public class DMaaPRestClientTest {
+
+    URL url;
+    private final String contentType = "application/json";
+    private final String auth = "";
+    private final String key = "";
+
+
+    @Test
+    public void headerMapTest() {
+
+        try {
+            url = new URL("http://testhost.com");
+        } catch (MalformedURLException e) {
+
+            throw new RuntimeException(e);
+        }
+        DMaaPRestClient client = new DMaaPRestClient(url, contentType, auth, key);
+        Map<String, String> map = new HashMap<>();
+        client.initializeHeaderMap(map);
+        map.put(ONAPLogConstants.MDCs.REQUEST_ID, "1234");
+        assertNotNull(map);
+        assertEquals("Found expected RequesttId", "1234", map.get(ONAPLogConstants.MDCs.REQUEST_ID));
+
+    }
+
+    @Test
+    public void headerMapInvocationIdNotNullTest() {
+
+        try {
+            url = new URL("http://testhost.com");
+        } catch (MalformedURLException e) {
+
+            throw new RuntimeException(e);
+        }
+        MDC.put(ONAPLogConstants.MDCs.REQUEST_ID, "1234");
+        DMaaPRestClient client = new DMaaPRestClient(url, contentType, auth, key);
+        Map<String, String> map = new HashMap<>();
+        client.initializeHeaderMap(map);
+
+        assertNotNull(map);
+        assertEquals("Found expected RequestId", "1234", map.get(ONAPLogConstants.Headers.INVOCATION_ID));
+
+    }
+
+    @Test
+    public void headerMapInvocationIdNullTest() {
+
+        try {
+            url = new URL("http://testhost.com");
+        } catch (MalformedURLException e) {
+
+            throw new RuntimeException(e);
+        }
+
+        DMaaPRestClient client = new DMaaPRestClient(url, contentType, auth, key);
+        Map<String, String> map = new HashMap<>();
+        client.initializeHeaderMap(map);
+
+        assertNotNull(map);
+        assertEquals("header not found as expected", null, map.get(ONAPLogConstants.Headers.INVOCATION_ID));
+
+    }
+}