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diff --git a/vnfs/VES5.0/evel/evel-library/code/evel_library/evel_strings.c b/vnfs/VES5.0/evel/evel-library/code/evel_library/evel_strings.c
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@@ -0,0 +1,481 @@
+/**************************************************************************//**
+ * @file
+ * Implementation of EVEL functions to convert common enum types to strings.
+ *
+ * License
+ * -------
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:  This product includes
+ *    software developed by the AT&T.
+ * 4. Neither the name of AT&T nor the names of its contributors may be used to
+ *    endorse or promote products derived from this software without specific
+ *    prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY AT&T INTELLECTUAL PROPERTY ''AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL AT&T INTELLECTUAL PROPERTY BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+#include <string.h>
+#include <assert.h>
+#include <stdlib.h>
+
+#include "evel_internal.h"
+
+/**************************************************************************//**
+ * Map an ::EVEL_COUNTER_CRITICALITIES enum value to the equivalent string.
+ *
+ * @param criticality   The criticality to convert.
+ * @returns The equivalent string.
+ *****************************************************************************/
+char * evel_criticality(const EVEL_COUNTER_CRITICALITIES criticality)
+{
+  char * result;
+
+  EVEL_ENTER();
+
+  switch (criticality)
+  {
+    case EVEL_COUNTER_CRITICALITY_CRIT:
+      result = "CRIT";
+      break;
+
+    case EVEL_COUNTER_CRITICALITY_MAJ:
+      result = "MAJ";
+      break;
+
+    default:
+      EVEL_ERROR("Unexpected counter criticality %d", criticality);
+      assert(0);
+  }
+
+  EVEL_EXIT();
+
+  return result;
+}
+
+/**************************************************************************//**
+ * Map an ::EVEL_SEVERITIES enum value to the equivalent string.
+ *
+ * @param severity      The severity to convert.
+ * @returns The equivalent string.
+ *****************************************************************************/
+char * evel_severity(const EVEL_SEVERITIES severity)
+{
+  char * result;
+
+  EVEL_ENTER();
+
+  switch (severity)
+  {
+    case EVEL_SEVERITY_CRITICAL:
+      result = "CRITICAL";
+      break;
+
+    case EVEL_SEVERITY_MAJOR:
+      result = "MAJOR";
+      break;
+
+    case EVEL_SEVERITY_MINOR:
+      result = "MINOR";
+      break;
+
+    case EVEL_SEVERITY_WARNING:
+      result = "WARNING";
+      break;
+
+    case EVEL_SEVERITY_NORMAL:
+      result = "NORMAL";
+      break;
+
+    default:
+      EVEL_ERROR("Unexpected event severity %d", severity);
+      assert(0);
+  }
+
+  EVEL_EXIT();
+
+  return result;
+}
+
+/**************************************************************************//**
+ * Map an ::EVEL_ALERT_ACTIONS enum value to the equivalent string.
+ *
+ * @param alert_action  The alert_action to convert.
+ * @returns The equivalent string.
+ *****************************************************************************/
+char * evel_alert_action(const EVEL_ALERT_ACTIONS alert_action)
+{
+  char * result;
+
+  EVEL_ENTER();
+
+  switch (alert_action)
+  {
+    case EVEL_ALERT_ACTION_CLEAR:
+      result = "CLEAR";
+      break;
+
+    case EVEL_ALERT_ACTION_CONT:
+      result = "CONT";
+      break;
+
+    case EVEL_ALERT_ACTION_SET:
+      result = "SET";
+      break;
+
+    default:
+      EVEL_ERROR("Unexpected alert action %d", alert_action);
+      assert(0);
+  }
+
+  EVEL_EXIT();
+
+  return result;
+}
+
+/**************************************************************************//**
+ * Map an ::EVEL_ALERT_TYPES enum value to the equivalent string.
+ *
+ * @param alert_type    The alert_type to convert.
+ * @returns The equivalent string.
+ *****************************************************************************/
+char * evel_alert_type(const EVEL_ALERT_TYPES alert_type)
+{
+  char * result;
+
+  EVEL_ENTER();
+
+  switch (alert_type)
+  {
+    case EVEL_ALERT_TYPE_CARD:
+      result = "CARD-ANOMALY";
+      break;
+
+    case EVEL_ALERT_TYPE_ELEMENT:
+      result = "ELEMENT-ANOMALY";
+      break;
+
+    case EVEL_ALERT_TYPE_INTERFACE:
+      result = "INTERFACE-ANOMALY";
+      break;
+
+    case EVEL_ALERT_TYPE_SERVICE:
+      result = "SERVICE-ANOMALY";
+      break;
+
+    default:
+      EVEL_ERROR("Unexpected alert type %d", alert_type);
+      assert(0);
+  }
+
+  EVEL_EXIT();
+
+  return result;
+}
+
+/**************************************************************************//**
+ * Map an ::EVEL_EVENT_DOMAINS enum value to the equivalent string.
+ *
+ * @param domain        The domain to convert.
+ * @returns The equivalent string.
+ *****************************************************************************/
+char * evel_event_domain(const EVEL_EVENT_DOMAINS domain)
+{
+  char * result;
+
+  EVEL_ENTER();
+
+  switch (domain)
+  {
+    case EVEL_DOMAIN_HEARTBEAT:
+      result = "heartbeat";
+      break;
+
+    case EVEL_DOMAIN_FAULT:
+      result = "fault";
+      break;
+
+    case EVEL_DOMAIN_MEASUREMENT:
+      result = "measurementsForVfScaling";
+      break;
+
+    case EVEL_DOMAIN_REPORT:
+      result = "measurementsForVfReporting";
+      break;
+
+    case EVEL_DOMAIN_MOBILE_FLOW:
+      result = "mobileFlow";
+      break;
+
+    case EVEL_DOMAIN_HEARTBEAT_FIELD:
+      result = "heartbeat";
+      break;
+
+    case EVEL_DOMAIN_SIPSIGNALING:
+      result = "sipSignaling";
+      break;
+
+    case EVEL_DOMAIN_STATE_CHANGE:
+      result = "stateChange";
+      break;
+
+    case EVEL_DOMAIN_SYSLOG:
+      result = "syslog";
+      break;
+
+    case EVEL_DOMAIN_OTHER:
+      result = "other";
+      break;
+
+    case EVEL_DOMAIN_VOICE_QUALITY:
+      result = "voiceQuality";
+      break;
+
+    default:
+      result = NULL;
+      EVEL_ERROR("Unexpected domain %d", domain);
+      assert(0);
+  }
+
+  EVEL_EXIT();
+
+  return result;
+}
+
+/**************************************************************************//**
+ * Map an ::EVEL_EVENT_PRIORITIES enum value to the equivalent string.
+ *
+ * @param priority      The priority to convert.
+ * @returns The equivalent string.
+ *****************************************************************************/
+char * evel_event_priority(const EVEL_EVENT_PRIORITIES priority)
+{
+  char * result;
+
+  EVEL_ENTER();
+
+  switch (priority)
+  {
+    case EVEL_PRIORITY_HIGH:
+      result = "High";
+      break;
+
+    case EVEL_PRIORITY_MEDIUM:
+      result = "Medium";
+      break;
+
+    case EVEL_PRIORITY_NORMAL:
+      result = "Normal";
+      break;
+
+    case EVEL_PRIORITY_LOW:
+      result = "Low";
+      break;
+
+    default:
+      result = NULL;
+      EVEL_ERROR("Unexpected priority %d", priority);
+      assert(0);
+  }
+
+  EVEL_EXIT();
+
+  return result;
+}
+
+/**************************************************************************//**
+ * Map an ::EVEL_SOURCE_TYPES enum value to the equivalent string.
+ *
+ * @param source_type   The source type to convert.
+ * @returns The equivalent string.
+ *****************************************************************************/
+char * evel_source_type(const EVEL_SOURCE_TYPES source_type)
+{
+  char * result;
+
+  EVEL_ENTER();
+
+  switch (source_type)
+  {
+    case EVEL_SOURCE_OTHER:
+      result = "other";
+      break;
+
+    case EVEL_SOURCE_ROUTER:
+      result = "router";
+      break;
+
+    case EVEL_SOURCE_SWITCH:
+      result = "switch";
+      break;
+
+    case EVEL_SOURCE_HOST:
+      result = "host";
+      break;
+
+    case EVEL_SOURCE_CARD:
+      result = "card";
+      break;
+
+    case EVEL_SOURCE_PORT:
+      result = "port";
+      break;
+
+    case EVEL_SOURCE_SLOT_THRESHOLD:
+      result = "slotThreshold";
+      break;
+
+    case EVEL_SOURCE_PORT_THRESHOLD:
+      result = "portThreshold";
+      break;
+
+    case EVEL_SOURCE_VIRTUAL_MACHINE:
+      result = "virtualMachine";
+      break;
+
+    case EVEL_SOURCE_VIRTUAL_NETWORK_FUNCTION:
+      result = "virtualNetworkFunction";
+      break;
+
+    default:
+      result = NULL;
+      EVEL_ERROR("Unexpected Event Source Type %d", (int) source_type);
+      assert(0);
+  }
+
+  EVEL_EXIT();
+
+  return result;
+}
+
+/**************************************************************************//**
+ * Map an ::EVEL_VF_STATUSES enum value to the equivalent string.
+ *
+ * @param vf_status     The vf_status to convert.
+ * @returns The equivalent string.
+ *****************************************************************************/
+char * evel_vf_status(const EVEL_VF_STATUSES vf_status)
+{
+  char * result;
+
+  EVEL_ENTER();
+
+  switch (vf_status)
+  {
+    case EVEL_VF_STATUS_ACTIVE:
+      result = "Active";
+      break;
+
+    case EVEL_VF_STATUS_IDLE:
+      result = "Idle";
+      break;
+
+    case EVEL_VF_STATUS_PREP_TERMINATE:
+      result = "Preparing to terminate";
+      break;
+
+    case EVEL_VF_STATUS_READY_TERMINATE:
+      result = "Ready to terminate";
+      break;
+
+    case EVEL_VF_STATUS_REQ_TERMINATE:
+      result = "Requesting termination";
+      break;
+
+    default:
+      result = NULL;
+      EVEL_ERROR("Unexpected VF Status %d", vf_status);
+      assert(0);
+  }
+
+  EVEL_EXIT();
+
+  return result;
+}
+
+/**************************************************************************//**
+ * Convert a ::EVEL_ENTITY_STATE to it's string form for JSON encoding.
+ *
+ * @param state         The entity state to encode.
+ *
+ * @returns the corresponding string
+ *****************************************************************************/
+char * evel_entity_state(const EVEL_ENTITY_STATE state)
+{
+  char * result;
+
+  EVEL_ENTER();
+
+  switch (state)
+  {
+    case EVEL_ENTITY_STATE_IN_SERVICE:
+      result = "inService";
+      break;
+
+    case EVEL_ENTITY_STATE_MAINTENANCE:
+      result = "maintenance";
+      break;
+
+    case EVEL_ENTITY_STATE_OUT_OF_SERVICE:
+      result = "outOfService";
+      break;
+
+    default:
+      EVEL_ERROR("Unexpected entity state %d", state);
+      assert(0);
+  }
+
+  EVEL_EXIT();
+
+  return result;
+}
+
+/**************************************************************************//**
+ * Convert a ::EVEL_SERVICE_ENDPOINT_DESC to string form for JSON encoding.
+ *
+ * @param endpoint_desc endpoint description to encode.
+ *
+ * @returns the corresponding string
+ *****************************************************************************/
+char * evel_service_endpoint_desc(const EVEL_ENTITY_STATE endpoint_desc)
+{
+  char * result;
+
+  EVEL_ENTER();
+
+  switch (endpoint_desc)
+  {
+    case EVEL_SERVICE_ENDPOINT_CALLEE:
+      result = "Callee";
+      break;
+
+    case EVEL_SERVICE_ENDPOINT_CALLER:
+      result = "Caller";
+      break;
+
+    default:
+      EVEL_ERROR("Unexpected endpoint description %d", endpoint_desc);
+      assert(0);
+  }
+
+  EVEL_EXIT();
+
+  return result;
+}