Enhanced console logging

Introduce new environment variables:
  * MQ_LOGGING_CONSOLE_SOURCE
  * MQ_LOGGING_CONSOLE_FORMAT
  * MQ_LOGGING_CONSOLE_EXCLUDE_ID

Authored-by: Avinash Ganesh <avinash.v.g@in.ibm.com> and BHAVYA K R <bhavkris@in.ibm.com>

test/docker/docker_api_test_util.go

@@ -745,6 +745,7 @@ func inspectLogs(t *testing.T, cli *client.Client, ID string) string {
 		t.Fatal(err)
 	}
 	buf := new(bytes.Buffer)
+
 	// Each output line has a header, which needs to be removed
 	_, err = stdcopy.StdCopy(buf, buf, reader)
 	if err != nil {
@@ -890,6 +891,30 @@ func getMQVersion(t *testing.T, cli *client.Client) (string, error) {
 	return version, nil
 }
 
+// scanForExcludedEntries scans for default excluded messages
+func scanForExcludedEntries(msg string) bool {
+	if strings.Contains(msg, "AMQ5041I") || strings.Contains(msg, "AMQ5052I") ||
+		strings.Contains(msg, "AMQ5051I") || strings.Contains(msg, "AMQ5037I") ||
+		strings.Contains(msg, "AMQ5975I") {
+		return true
+	}
+	return false
+}
+
+// checkLogForValidJSON checks if the message is in Json format
+func checkLogForValidJSON(jsonLogs string) bool {
+	scanner := bufio.NewScanner(strings.NewReader(jsonLogs))
+	for scanner.Scan() {
+		var obj map[string]interface{}
+		s := scanner.Text()
+		err := json.Unmarshal([]byte(s), &obj)
+		if err != nil {
+			return false
+		}
+	}
+	return true
+}
+
 // runContainerWithAllConfig creates and starts a container, using the supplied ContainerConfig, HostConfig,
 // NetworkingConfig, and container name (or the value of t.Name if containerName="").
 func runContainerWithAllConfigError(t *testing.T, cli *client.Client, containerConfig *container.Config, hostConfig *container.HostConfig, networkingConfig *network.NetworkingConfig, containerName string) (string, error) {