Expose tracing context via log context service

Tracing context must be available to application code
when the application makes outbound calls.

Change-Id: Ica8e1f9d8e0bd6d37688a01a64c1fbedc126801c
Issue-ID: SDC-1264
Signed-off-by: vempo <vitaliy.emporopulo@amdocs.com>

3 files changed, 41 insertions, 3 deletions

diff --git a/openecomp-be/lib/openecomp-sdc-logging-lib/openecomp-sdc-logging-api/src/main/java/org/openecomp/sdc/logging/api/ContextData.java b/openecomp-be/lib/openecomp-sdc-logging-lib/openecomp-sdc-logging-api/src/main/java/org/openecomp/sdc/logging/api/ContextData.java
index 43f0143774..6eb747f9d9 100644
--- a/openecomp-be/lib/openecomp-sdc-logging-lib/openecomp-sdc-logging-api/src/main/java/org/openecomp/sdc/logging/api/ContextData.java
+++ b/openecomp-be/lib/openecomp-sdc-logging-lib/openecomp-sdc-logging-api/src/main/java/org/openecomp/sdc/logging/api/ContextData.java
@@ -16,6 +16,8 @@
 
 package org.openecomp.sdc.logging.api;
 
+import java.util.Objects;
+
 /**
  * Builder to populate logging <i>context</i> data, i.e. data that should be available to any log writing event
  * throughout an application. This includes only data known at some point to the application (e.g. at an API call),
@@ -64,9 +66,30 @@ public class ContextData {
     }
 
     @Override
+    public boolean equals(Object o) {
+
+        if (this == o) {
+            return true;
+        }
+
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+
+        ContextData that = (ContextData) o;
+        return Objects.equals(requestId, that.requestId) && Objects.equals(serviceName, that.serviceName)
+                       && Objects.equals(partnerName, that.partnerName);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(requestId, serviceName, partnerName);
+    }
+
+    @Override
     public String toString() {
         return "ContextData{responseCode=" + requestId + ", responseDescription=" + serviceName
-                + ", clientIpAddress=" + partnerName + '}';
+                       + ", clientIpAddress=" + partnerName + '}';
     }
 
     public static ContextDataBuilder builder() {
diff --git a/openecomp-be/lib/openecomp-sdc-logging-lib/openecomp-sdc-logging-api/src/main/java/org/openecomp/sdc/logging/api/LoggingContext.java b/openecomp-be/lib/openecomp-sdc-logging-lib/openecomp-sdc-logging-api/src/main/java/org/openecomp/sdc/logging/api/LoggingContext.java
index 2dc4afdf58..c17149e98e 100644
--- a/openecomp-be/lib/openecomp-sdc-logging-lib/openecomp-sdc-logging-api/src/main/java/org/openecomp/sdc/logging/api/LoggingContext.java
+++ b/openecomp-be/lib/openecomp-sdc-logging-lib/openecomp-sdc-logging-api/src/main/java/org/openecomp/sdc/logging/api/LoggingContext.java
@@ -36,8 +36,7 @@ import org.openecomp.sdc.logging.spi.LoggingContextService;
 public class LoggingContext {
 
     private static final LoggingContextService SERVICE =
-        ServiceBinder.getContextServiceBinding().orElse(
-            new NoOpLoggingContextService());
+            ServiceBinder.getContextServiceBinding().orElse(new NoOpLoggingContextService());
 
     private LoggingContext() {
         // prevent instantiation
@@ -47,6 +46,10 @@ public class LoggingContext {
         SERVICE.put(contextData);
     }
 
+    public static ContextData get() {
+        return SERVICE.get();
+    }
+
     public static void clear() {
         SERVICE.clear();
     }
@@ -61,12 +64,19 @@ public class LoggingContext {
 
     private static class NoOpLoggingContextService implements LoggingContextService {
 
+        private static final ContextData EMPTY_CONTEXT = ContextData.builder().build();
+
         @Override
         public void put(ContextData contextData) {
             Objects.requireNonNull(contextData, "Context data cannot be null");
         }
 
         @Override
+        public ContextData get() {
+            return EMPTY_CONTEXT;
+        }
+
+        @Override
         public void clear() {
             // no-op
         }
diff --git a/openecomp-be/lib/openecomp-sdc-logging-lib/openecomp-sdc-logging-api/src/main/java/org/openecomp/sdc/logging/spi/LoggingContextService.java b/openecomp-be/lib/openecomp-sdc-logging-lib/openecomp-sdc-logging-api/src/main/java/org/openecomp/sdc/logging/spi/LoggingContextService.java
index b90ce63982..37e212ac54 100644
--- a/openecomp-be/lib/openecomp-sdc-logging-lib/openecomp-sdc-logging-api/src/main/java/org/openecomp/sdc/logging/spi/LoggingContextService.java
+++ b/openecomp-be/lib/openecomp-sdc-logging-lib/openecomp-sdc-logging-api/src/main/java/org/openecomp/sdc/logging/spi/LoggingContextService.java
@@ -40,6 +40,11 @@ public interface LoggingContextService {
     void put(ContextData contextData);
 
     /**
+     * Return logging context's data.
+     */
+    ContextData get();
+
+    /**
      * Clear logging thread context.
      */
     void clear();