implement the list view for metrics

web/app/controllers/api/v1/Metric.java

@@ -257,6 +257,41 @@ public class Metric extends Controller
             result.put("message", message);
             return badRequest(result);
         }
+    }
 
+    public static Result getMetricListViewByMetricId(Integer id)
+    {
+        ObjectNode result = Json.newObject();
+
+        result.put("status", "ok");
+        result.set("nodes", MetricsDAO.getMetricListViewMetricNodesByMetricId(id));
+        return ok(result);
+    }
+
+    public static Result getMetricListViewDashboards()
+    {
+        ObjectNode result = Json.newObject();
+
+        result.put("status", "ok");
+        result.set("nodes", MetricsDAO.getMetricListViewDashboardNodes());
+        return ok(result);
+    }
+
+    public static Result getMetricListViewGroups(String dashboard)
+    {
+        ObjectNode result = Json.newObject();
+
+        result.put("status", "ok");
+        result.set("nodes", MetricsDAO.getMetricListViewGroupsNodes(dashboard));
+        return ok(result);
+    }
+
+    public static Result getMetricListViewNodes(String dashboard, String group)
+    {
+        ObjectNode result = Json.newObject();
+
+        result.put("status", "ok");
+        result.set("nodes", MetricsDAO.getMetricListViewMetricNodes(dashboard, group));
+        return ok(result);
     }
 }

web/app/dao/MetricsDAO.java

@@ -21,6 +21,7 @@ import java.util.Map;
 import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.node.ObjectNode;
 import com.google.common.primitives.Ints;
+import models.MetricListViewNode;
 import models.TreeNode;
 import org.apache.commons.lang3.StringUtils;
 import org.springframework.dao.EmptyResultDataAccessException;
@@ -80,6 +81,9 @@ public class MetricsDAO extends AbstractMySQLOpenSourceDAO
       		"LEFT JOIN watch w ON (m.metric_id = w.item_id AND w.item_type = 'metric' AND w.user_id = ?) " +
       		"WHERE m.metric_id = ?";
 
+    private final static String GET_METRIC_BASIC_INFO_BY_ID = "SELECT metric_name, " +
+            "dashboard_name, metric_group, metric_category FROM dict_business_metric WHERE metric_id = ?";
+
   	private final static String GET_WATCHED_METRIC_ID = "SELECT id FROM watch " +
       		"WHERE user_id = ? and item_id = ? and item_type = 'metric'";
 
@@ -103,23 +107,149 @@ public class MetricsDAO extends AbstractMySQLOpenSourceDAO
 
     private final static String GET_METRIC_TREE_NODES = "SELECT DISTINCT metric_category, " +
             "COALESCE(metric_name, '(Other)') as metric_name, metric_id " +
-            "FROM dict_business_metric WHERE dashboard_name = ? and metric_group = ? order by 1";
+            "FROM dict_business_metric WHERE dashboard_name = ? and metric_group = ? order by 2";
 
     private final static String GET_METRIC_TREE_NODES_NO_DASHBOARD = "SELECT DISTINCT metric_category, " +
             "COALESCE(metric_name, '(Other)') as metric_name, metric_id " +
-            "FROM dict_business_metric WHERE dashboard_name is null and metric_group = ? order by 1";
+            "FROM dict_business_metric WHERE dashboard_name is null and metric_group = ? order by 2";
 
     private final static String GET_METRIC_TREE_NODES_NO_GROUP = "SELECT DISTINCT metric_category, " +
             "COALESCE(metric_name, '(Other)') as metric_name, metric_id " +
-            "FROM dict_business_metric WHERE dashboard_name = ? and metric_group is null order by 1";
+            "FROM dict_business_metric WHERE dashboard_name = ? and metric_group is null order by 2";
 
     private final static String GET_METRIC_TREE_NODES_NO_DASHBOARD_AND_GROUP = "SELECT DISTINCT metric_category, " +
             "COALESCE(metric_name, '(Other)') as metric_name, metric_id " +
-            "FROM dict_business_metric WHERE dashboard_name is null and metric_group is null order by 1";
+            "FROM dict_business_metric WHERE dashboard_name is null and metric_group is null order by 2";
 
     public final static String GET_METRIC_AUTO_COMPLETE_LIST = "SELECT DISTINCT metric_name " +
             "FROM dict_business_metric WHERE metric_name is not null and metric_name != '' ORDER by 1";
 
+    public static JsonNode getMetricListViewDashboardNodes()
+    {
+        List<String> dashboardList = getJdbcTemplate().queryForList(GET_METRIC_TREE_DASHBOARD_NODES, String.class);
+        List<MetricListViewNode> nodes = new ArrayList<MetricListViewNode>();
+        if (dashboardList != null && dashboardList.size() > 0)
+        {
+            for (String dashboard : dashboardList)
+            {
+                MetricListViewNode node = new MetricListViewNode();
+                node.dashboard = dashboard;
+                node.nodeName = dashboard;
+                node.nodeUrl = "#/metrics/name/" + node.dashboard + "/page/1";
+                nodes.add(node);
+            }
+        }
+        return Json.toJson(nodes);
+    }
+
+    public static JsonNode getMetricListViewGroupsNodes(String dashboard)
+    {
+        List<MetricListViewNode> nodes = new ArrayList<MetricListViewNode>();
+        if (StringUtils.isBlank(dashboard))
+        {
+            return Json.toJson(nodes);
+        }
+        List<String> groupList = null;
+        if (dashboard.equalsIgnoreCase("(Other)"))
+        {
+            groupList = getJdbcTemplate().queryForList(GET_METRIC_TREE_OTHER_GROUP_NODES, String.class);
+        }
+        else
+        {
+            groupList = getJdbcTemplate().queryForList(GET_METRIC_TREE_GROUP_NODES, String.class, dashboard);
+        }
+
+        if (groupList != null && groupList.size() > 0)
+        {
+            for (String group : groupList)
+            {
+                MetricListViewNode node = new MetricListViewNode();
+                node.dashboard = dashboard;
+                node.group = group;
+                node.nodeName = group;
+                node.nodeUrl = "#/metrics/name/" + dashboard + "/" + group + "/page/1";
+                nodes.add(node);
+            }
+        }
+        return Json.toJson(nodes);
+    }
+
+    public static JsonNode getMetricListViewMetricNodes(String dashboard, String group)
+    {
+        List<MetricListViewNode> nodes = new ArrayList<MetricListViewNode>();
+        if (StringUtils.isBlank(dashboard) || StringUtils.isBlank(group))
+        {
+            return Json.toJson(nodes);
+        }
+        List<Map<String, Object>> rows = null;
+        if (dashboard.equalsIgnoreCase("(Other)"))
+        {
+            if (group.equalsIgnoreCase("(Other)"))
+            {
+                rows = getJdbcTemplate().queryForList(GET_METRIC_TREE_NODES_NO_DASHBOARD_AND_GROUP);
+            }
+            else
+            {
+                rows = getJdbcTemplate().queryForList(GET_METRIC_TREE_NODES_NO_DASHBOARD, group);
+            }
+
+        }
+        else
+        {
+            if (group.equalsIgnoreCase("(Other)"))
+            {
+                rows = getJdbcTemplate().queryForList(GET_METRIC_TREE_NODES_NO_GROUP, dashboard);
+            }
+            else
+            {
+                rows = getJdbcTemplate().queryForList(GET_METRIC_TREE_NODES, dashboard, group);
+            }
+        }
+
+        if (rows != null)
+        {
+            for (Map row : rows)
+            {
+                String category = (String)row.get(MetricRowMapper.METRIC_CATEGORY_COLUMN);
+                String name = (String)row.get(MetricRowMapper.METRIC_NAME_COLUMN);
+                String title = "";
+                if (StringUtils.isBlank(category))
+                {
+                    title = name;
+                }
+                else
+                {
+                    title = "{" + category + "} " + name;
+                }
+
+                MetricListViewNode node = new MetricListViewNode();
+                node.dashboard = dashboard;
+                node.group = group;
+                node.metric = name;
+                node.metricId = new Long((Integer)row.get(MetricRowMapper.METRIC_ID_COLUMN));
+                node.nodeName = title;
+                node.nodeUrl = "#/metrics/" + Long.toString(node.metricId);
+                nodes.add(node);
+            }
+        }
+        return Json.toJson(nodes);
+    }
+
+    public static JsonNode getMetricListViewMetricNodesByMetricId(Integer metricId)
+    {
+        List<MetricListViewNode> nodes = new ArrayList<MetricListViewNode>();
+        Metric metric = getMetricBasicInfoById(metricId);
+        if (StringUtils.isBlank(metric.dashboardName))
+        {
+            metric.dashboardName = "(Other)";
+        }
+        if (StringUtils.isBlank(metric.group))
+        {
+            metric.group = "(Other)";
+        }
+        return getMetricListViewMetricNodes(metric.dashboardName, metric.group);
+    }
+
     public static JsonNode getMetricDashboardNodes()
     {
         List<String> dashboardList = getJdbcTemplate().queryForList(GET_METRIC_TREE_DASHBOARD_NODES, String.class);
@@ -336,7 +466,37 @@ public class MetricsDAO extends AbstractMySQLOpenSourceDAO
 		return result;
 	}
 
-	public static Metric getMetricByID(int id, String user)
+    private static Metric getMetricBasicInfoById(int id)
+    {
+        List<Map<String, Object>> rows = null;
+        Metric metric = new Metric();
+        try
+        {
+            rows = getJdbcTemplate().queryForList(
+                    GET_METRIC_BASIC_INFO_BY_ID,
+                    id);
+            if (rows != null)
+            {
+                for (Map row : rows)
+                {
+                    String dashboard = (String)row.get(MetricRowMapper.METRIC_DASHBOARD_NAME_COLUMN);
+                    String group = (String)row.get(MetricRowMapper.METRIC_GROUP_COLUMN);
+                    metric.dashboardName = dashboard;
+                    metric.group = group;
+                }
+            }
+
+        }
+        catch(EmptyResultDataAccessException e)
+        {
+            Logger.error("Metric getMetricByID failed, id = " + id);
+            Logger.error("Exception = " + e.getMessage());
+        }
+
+        return metric;
+    }
+
+    public static Metric getMetricByID(int id, String user)
 	{
     	Integer userId = UserDAO.getUserIDByUserName(user);
 		Metric metric = null;

web/app/models/MetricListViewNode.java

@@ -0,0 +1,24 @@
+/**
+ * Copyright 2015 LinkedIn Corp. 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.
+ */
+package models;
+
+public class MetricListViewNode {
+
+    public String dashboard;
+    public String nodeName;
+    public String nodeUrl;
+    public String group;
+    public String metric;
+    public Long metricId;
+}

web/app/views/index.scala.html

@@ -26,8 +26,8 @@
             </div>
             @if(isInternal) {
               <div id="treetab" class="tab-pane">
-                <div id="tree1" data-source="ajax" class="sampletree">
-                </div>
+                <div id="metriclist" class="list-group"></div>
+                <div id="tree1" data-source="ajax" class="sampletree" style="display: none;"></div>
               </div>
             }
             <div id="flowtab" class="tab-pane">
@@ -884,6 +884,21 @@
         <div class="row">
           <div class="col-xs-12">
             {{#unless detailview}}
+            <div class="well well-sm">
+              <div class="row">
+                <div class="col-xs-11">
+                  <ul class="breadcrumbs">
+                    {{#each breadcrumbs as |crumb|}}
+                      <li>
+                        <a title="{{crumb.title}}" href="#/metrics/{{crumb.urn}}">
+                          {{crumb.title}}
+                        </a>
+                      </li>
+                    {{/each}}
+                  </ul>
+                </div>
+              </div>
+            </div>
             <div class="search-pagination">
               <ul class="pager">
                 {{#unless first}}
@@ -931,21 +946,6 @@
             </div>
             {{/unless}}
             {{#unless detailview}}
-            <div class="well well-sm">
-              <div class="row">
-                <div class="col-xs-11">
-                  <ul class="breadcrumbs">
-                    {{#each breadcrumbs as |crumb|}}
-                      <li>
-                        <a title="{{crumb.title}}" href="#/metrics/{{crumb.urn}}">
-                          {{crumb.title}}
-                        </a>
-                      </li>
-                    {{/each}}
-                  </ul>
-                </div>
-              </div>
-            </div>
 
             <table class="table table-bordered search-results">
               <tbody>
@@ -996,8 +996,22 @@
       </div>
     </script>
 
-
     <script type="text/x-handlebars" id="metric">
+      <div class="well well-sm">
+        <div class="row">
+          <div class="col-xs-11">
+            <ul class="breadcrumbs">
+              {{#each breadcrumbs as |crumb|}}
+                <li>
+                  <a title="{{crumb.title}}" href="#/metrics/{{crumb.urn}}">
+                    {{crumb.title}}
+                  </a>
+                </li>
+              {{/each}}
+            </ul>
+          </div>
+        </div>
+      </div>
       {{#metric-detail showLineage=showLineage model=model}}
       {{/metric-detail}}
     </script>

web/conf/routes

@@ -59,11 +59,19 @@ GET     /api/v2/autocomplete/searchFlow         controllers.api.v1.Search.getSea
 
 GET     /api/v1/list/datasets               controllers.api.v1.Dataset.getDatasetListNodes()
 
+GET     /api/v1/list/metrics                controllers.api.v1.Metric.getMetricListViewDashboards()
+
+GET     /api/v1/list/metrics/:dashboard             controllers.api.v1.Metric.getMetricListViewGroups(dashboard: String)
+
+GET     /api/v1/list/metrics/:dashboard/:group      controllers.api.v1.Metric.getMetricListViewNodes(dashboard: String, group: String)
+
+GET     /api/v1/list/metric/:id             controllers.api.v1.Metric.getMetricListViewByMetricId(id: Int)
+
 GET     /api/v1/list/flows                  controllers.api.v1.Flow.getFlowListViewClusters()
 
 GET     /api/v1/list/flows/:application     controllers.api.v1.Flow.getFlowListViewProjects(application:String)
 
-GET     /api/v1/list/flows/:application/:project      controllers.api.v1.Flow.getFlowListViewFlows(application:String, project:String)
+GET     /api/v1/list/flows/:application/:project    controllers.api.v1.Flow.getFlowListViewFlows(application:String, project:String)
 
 GET     /api/v1/datasets                    controllers.api.v1.Dataset.getPagedDatasets()
 

web/public/javascripts/main.js

@@ -72,9 +72,11 @@
         $('#treeviewbtn').removeClass('btn-default');
         $('#listviewbtn').addClass('btn-primary');
         $('#treeviewbtn').addClass('btn-default');
+        $('#tree1').hide();
         $('#tree2').hide();
         $('#tree3').hide();
         $('#datasetlist').show();
+        $('#metriclist').show();
         $('#flowlist').show();
     });
 
@@ -86,7 +88,9 @@
         $('#listviewbtn').addClass('btn-default');
         $('#treeviewbtn').addClass('btn-primary');
         $('#datasetlist').hide();
+        $('#metriclist').hide();
         $('#flowlist').hide();
+        $('#tree1').show();
         $('#tree2').show();
         $('#tree3').show();
     });
@@ -307,6 +311,43 @@ function renderFlowListView(nodes, flowId)
     }
 }
 
+function renderMetricListView(nodes, metricId)
+{
+    var folderTemplate = '<a href="$URL" class="list-group-item"><i class="fa fa-folder" style="margin-right: 5px;"> $NODE_NAME</i></a>';
+    var metricTemplate = '<a href="$URL" class="list-group-item"><i class="fa fa-plus-square-o" style="margin-right: 5px;"> $NODE_NAME</i></a>';
+    var activeTemplate = '<a href="$URL" class="active list-group-item"><i class="fa fa-plus-square-o" style="margin-right: 5px;"> $NODE_NAME</i></a>';
+    var obj = $('#metriclist');
+    if (!obj)
+        return;
+    obj.empty();
+    var activeObj;
+    for(var i = 0; i < nodes.length; i++)
+    {
+        if (nodes[i].metricId && nodes[i].metricId > 0)
+        {
+            if (metricId == nodes[i].metricId)
+            {
+                activeObj = obj.append(activeTemplate.replace('$NODE_NAME', nodes[i].nodeName).replace("$URL", nodes[i].nodeUrl));
+            }
+            else
+            {
+                obj.append(metricTemplate.replace('$NODE_NAME', nodes[i].nodeName).replace("$URL", nodes[i].nodeUrl));
+            }
+        }
+        else
+        {
+            obj.append(folderTemplate.replace('$NODE_NAME', nodes[i].nodeName).replace("$URL", nodes[i].nodeUrl));
+        }
+
+    }
+    if (activeObj)
+    {
+        var scrollToActiveNode = function() {
+            $("#tabSplitter").scrollTo(activeObj, 800)
+        }
+    }
+}
+
 function filterListView(category, filter)
 {
     var obj = $('#flowlist');
@@ -314,6 +355,10 @@ function filterListView(category, filter)
     {
         obj = $('#datasetlist');
     }
+    else if (category == 'Metrics')
+    {
+        obj = $('#metriclist');
+    }
 
     if (!obj || !obj.children() || obj.children().length == 0)
     {

web/public/javascripts/routers/metrics.js

@@ -5,6 +5,13 @@ App.MetricsRoute = Ember.Route.extend({
     },
     actions: {
       getMetrics: function() {
+        var listUrl = 'api/v1/list/metrics';
+        $.get(listUrl, function(data) {
+          if (data && data.status == "ok"){
+            renderMetricListView(data.nodes);
+          }
+        });
+
         var url = 'api/v1/metrics?size=10&page=' + metricsController.get('model.data.page');
         currentTab = 'Metrics';
         updateActiveTab();
@@ -20,6 +27,12 @@ App.MetricsRoute = Ember.Route.extend({
 });
 App.MetricspageRoute = Ember.Route.extend({
     setupController: function(controller, param) {
+        var listUrl = 'api/v1/list/metrics';
+        $.get(listUrl, function(data) {
+            if (data && data.status == "ok"){
+                renderMetricListView(data.nodes);
+            }
+        });
         var url = 'api/v1/metrics?size=10&page=' + param.page;
         currentTab = 'Metrics';
         updateActiveTab();
@@ -47,6 +60,12 @@ App.MetricspageRoute = Ember.Route.extend({
     },
     actions: {
       getMetrics: function() {
+        var listUrl = 'api/v1/list/metrics';
+        $.get(listUrl, function(data) {
+          if (data && data.status == "ok"){
+            renderMetricListView(data.nodes);
+          }
+        });
         var url = 'api/v1/metrics?size=10&page=' + metricsController.get('model.data.page');
         currentTab = 'Metrics';
         updateActiveTab();
@@ -178,9 +197,25 @@ App.MetricRoute = Ember.Route.extend({
             {
                 name = params.name;
             }
+            var breadcrumbs;
             $.get(url, function(data) {
                 if (data && data.status == "ok"){
                     controller.set("model", data.metric);
+                    var dashboard = data.metric.dashboardName;
+                    if (!dashboard)
+                    {
+                        dashboard = '(Other)';
+                    }
+                    var group = data.metric.group;
+                    if (!group)
+                    {
+                        group = '(Other)';
+                    }
+                    breadcrumbs = [{"title":"METRICS_ROOT", "urn":"page/1"},
+                            {"title":dashboard, "urn":"name/" + dashboard + "/page/1"},
+                            {"title":group, "urn":"name/" + dashboard + "/" + group + "/page/1"},
+                            {"title":data.metric.name, "urn": params.id}];
+                    controller.set('breadcrumbs', breadcrumbs);
                     setTimeout(initializeXEditable(id,
                         data.metric.description,
                         data.metric.dashboardName,
@@ -194,6 +229,21 @@ App.MetricRoute = Ember.Route.extend({
         else if (params && params.metric)
         {
             id = params.metric.id;
+            var dashboard = params.metric.dashboardName;
+            if (!dashboard)
+            {
+                dashboard = '(Other)';
+            }
+            var group = params.metric.group;
+            if (!group)
+            {
+                group = '(Other)';
+            }
+            breadcrumbs = [{"title":"METRICS_ROOT", "urn":"page/1"},
+                {"title":name, "urn":"name/" + dashboard + "/page/1"},
+                {"title":group, "urn":"name/" + dashboard + "/" + group + "/page/1"},
+                {"title":params.metric.name, "urn": params.id}];
+            controller.set('breadcrumbs', breadcrumbs);
             if (params.metric.category)
             {
                 name =  '{' + params.metric.category + '} ' + params.metric.name;
@@ -210,6 +260,15 @@ App.MetricRoute = Ember.Route.extend({
                 params.metric.displayFactor,
                 params.metric.displayFactorSym), 500);
         }
+
+
+        var listUrl = 'api/v1/list/metric/' + id;
+        $.get(listUrl, function(data) {
+            if (data && data.status == "ok"){
+                renderMetricListView(data.nodes, id);
+            }
+        });
+
         if (name)
         {
             findAndActiveMetricNode(name, id);
@@ -218,6 +277,15 @@ App.MetricRoute = Ember.Route.extend({
     },
     actions: {
       getMetrics: function() {
+        var id = this.get('controller.model.id');
+        var listUrl = 'api/v1/list/metrics/' + id;
+
+        $.get(listUrl, function(data) {
+          if (data && data.status == "ok"){
+            renderMetricListView(data.nodes, id);
+          }
+        });
+
         var url = 'api/v1/metrics/' + this.get('controller.model.id')
         var _this = this
         currentTab = 'Metrics';
@@ -242,8 +310,16 @@ App.MetricnamepageRoute = Ember.Route.extend({
             && transition.resolvedModels.metricname.name)
         {
             var name = transition.resolvedModels.metricname.name;
+            var listUrl = 'api/v1/list/metrics/' + name;
+            $.get(listUrl, function(data) {
+                if (data && data.status == "ok"){
+                    renderMetricListView(data.nodes);
+                }
+            });
+
             var url = 'api/v1/metrics/name/' + name + '?page=' + params.page;
-            var breadcrumbs = [{"title":name, "urn":"name/" + name + "/page/1"}];
+            var breadcrumbs = [{"title":"METRICS_ROOT", "urn":"page/1"},
+                                {"title":name, "urn":"name/" + name + "/page/1"}];
             $.get(url, function(data) {
                 if (data && data.status == "ok"){
                     metricsController.set('model', data);
@@ -273,6 +349,13 @@ App.MetricnamepageRoute = Ember.Route.extend({
     },
     actions: {
       getMetrics: function() {
+        var listUrl = 'api/v1/list/metrics/' + metricsController.get('dashboard');
+        $.get(listUrl, function(data) {
+          if (data && data.status == "ok"){
+            renderMetricListView(data.nodes);
+          }
+        });
+
         var url = 'api/v1/metrics/name/' + metricsController.get('dashboard')
         url += '?size=10&page=' + metricsController.get('model.data.page');
         currentTab = 'Metrics';
@@ -306,10 +389,18 @@ App.MetricnamesubpageRoute = Ember.Route.extend({
             {
                 group = transition.resolvedModels.metricgroup.group;
                 url += '/' + group + '?page=' + params.page;
-                breadcrumbs = [{"title":name, "urn":"name/" + name + "/page/1"},
+                breadcrumbs = [{"title":"METRICS_ROOT", "urn":"page/1"},
+                    {"title":name, "urn":"name/" + name + "/page/1"},
                     {"title":group, "urn":"name/" + name + "/" + group + "/page/1"}];
 
             }
+            var listUrl = 'api/v1/list/metrics/' + name + '/' + group;
+            $.get(listUrl, function(data) {
+                if (data && data.status == "ok"){
+                    renderMetricListView(data.nodes);
+                }
+            });
+
             $.get(url, function(data) {
                 if (data && data.status == "ok"){
                     metricsController.set('breadcrumbs', breadcrumbs);
@@ -338,6 +429,13 @@ App.MetricnamesubpageRoute = Ember.Route.extend({
     },
     actions: {
       getMetrics: function() {
+        var listUrl = 'api/v1/list/metrics/' + metricsController.get('dashboard')
+            + '/' + metricsController.get('group');
+        $.get(listUrl, function(data) {
+          if (data && data.status == "ok"){
+            renderMetricListView(data.nodes);
+          }
+        });
         var url = 'api/v1/metrics/name/' + metricsController.get('dashboard')
         url += '/' + metricsController.get('group') + '?size=10&page=' + metricsController.get('model.data.page');
         currentTab = 'Metrics';