CLOUDSTACK-9783: Improve metrics view performance

This improves the metrics view feature by improving the rendering performance
of metrics view tables, by reimplementing the logic at the backend and data
served via APIs. In large environments, the older implementation would
make several API calls that increases both network and database load.

List of APIs introduced for improving the performance:

    listClustersMetrics
    listHostsMetrics
    listInfrastructure
    listStoragePoolsMetrics
    listVMsMetrics
    listVolumesMetrics
    listZonesMetrics

Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>

Author: yadvr

api/src/org/apache/cloudstack/api/command/admin/cluster/ListClustersCmd.java

@@ -125,18 +125,22 @@ public String getCommandName() {
         return s_name;
     }
 
-    @Override
-    public void execute() {
+    protected List<ClusterResponse> getClusterResponses() {
         Pair<List<? extends Cluster>, Integer> result = _mgr.searchForClusters(this);
-        ListResponse<ClusterResponse> response = new ListResponse<ClusterResponse>();
         List<ClusterResponse> clusterResponses = new ArrayList<ClusterResponse>();
         for (Cluster cluster : result.first()) {
             ClusterResponse clusterResponse = _responseGenerator.createClusterResponse(cluster, showCapacities);
             clusterResponse.setObjectName("cluster");
             clusterResponses.add(clusterResponse);
         }
+        return clusterResponses;
+    }
 
-        response.setResponses(clusterResponses, result.second());
+    @Override
+    public void execute() {
+        List<ClusterResponse> clusterResponses = getClusterResponses();
+        ListResponse<ClusterResponse> response = new ListResponse<ClusterResponse>();
+        response.setResponses(clusterResponses, clusterResponses.size());
         response.setResponseName(getCommandName());
         this.setResponseObject(response);
     }

api/src/org/apache/cloudstack/api/command/admin/host/ListHostsCmd.java

@@ -132,6 +132,10 @@ public String getState() {
         return state;
     }
 
+    public void setType(String type) {
+        this.type = type;
+    }
+
     public String getType() {
         return type;
     }
@@ -198,19 +202,16 @@ public ApiCommandJobType getInstanceType() {
         return ApiCommandJobType.Host;
     }
 
-    @Override
-    public void execute() {
-        ListResponse<HostResponse> response = null;
+    protected ListResponse<HostResponse> getHostResponses() {
+        ListResponse<HostResponse> response = new ListResponse<>();
         if (getVirtualMachineId() == null) {
             response = _queryService.searchForServers(this);
         } else {
             Pair<List<? extends Host>, Integer> result;
             Ternary<Pair<List<? extends Host>, Integer>, List<? extends Host>, Map<Host, Boolean>> hostsForMigration =
-                _mgr.listHostsForMigrationOfVM(getVirtualMachineId(), this.getStartIndex(), this.getPageSizeVal());
+                    _mgr.listHostsForMigrationOfVM(getVirtualMachineId(), this.getStartIndex(), this.getPageSizeVal());
             result = hostsForMigration.first();
             List<? extends Host> hostsWithCapacity = hostsForMigration.second();
-
-            response = new ListResponse<HostResponse>();
             List<HostResponse> hostResponses = new ArrayList<HostResponse>();
             for (Host host : result.first()) {
                 HostResponse hostResponse = _responseGenerator.createHostResponse(host, getDetails());
@@ -222,9 +223,14 @@ public void execute() {
                 hostResponse.setObjectName("host");
                 hostResponses.add(hostResponse);
             }
-
             response.setResponses(hostResponses, result.second());
         }
+        return response;
+    }
+
+    @Override
+    public void execute() {
+        ListResponse<HostResponse> response = getHostResponses();
         response.setResponseName(getCommandName());
         this.setResponseObject(response);
     }

api/src/org/apache/cloudstack/api/response/HostResponse.java

@@ -458,4 +458,163 @@ public void setDetails(Map details) {
 
     }
 
+    public String getName() {
+        return name;
+    }
+
+    public Status getState() {
+        return state;
+    }
+
+    public Date getDisconnectedOn() {
+        return disconnectedOn;
+    }
+
+    public Host.Type getHostType() {
+        return hostType;
+    }
+
+    public String getOsCategoryId() {
+        return osCategoryId;
+    }
+
+    public String getOsCategoryName() {
+        return osCategoryName;
+    }
+
+    public String getIpAddress() {
+        return ipAddress;
+    }
+
+    public String getZoneId() {
+        return zoneId;
+    }
+
+    public String getZoneName() {
+        return zoneName;
+    }
+
+    public String getPodId() {
+        return podId;
+    }
+
+    public String getPodName() {
+        return podName;
+    }
+
+    public String getVersion() {
+        return version;
+    }
+
+    public HypervisorType getHypervisor() {
+        return hypervisor;
+    }
+
+    public Integer getCpuSockets() {
+        return cpuSockets;
+    }
+
+    public Integer getCpuNumber() {
+        return cpuNumber;
+    }
+
+    public Long getCpuSpeed() {
+        return cpuSpeed;
+    }
+
+    public String getCpuUsed() {
+        return cpuUsed;
+    }
+
+    public Long getAverageLoad() {
+        return averageLoad;
+    }
+
+    public Long getNetworkKbsRead() {
+        return networkKbsRead;
+    }
+
+    public Long getNetworkKbsWrite() {
+        return networkKbsWrite;
+    }
+
+    public Long getMemoryTotal() {
+        return memoryTotal;
+    }
+
+    public Long getMemoryAllocated() {
+        return memoryAllocated;
+    }
+
+    public Long getMemoryUsed() {
+        return memoryUsed;
+    }
+
+    public List<GpuResponse> getGpuGroup() {
+        return gpuGroup;
+    }
+
+    public Long getDiskSizeTotal() {
+        return diskSizeTotal;
+    }
+
+    public Long getDiskSizeAllocated() {
+        return diskSizeAllocated;
+    }
+
+    public String getCapabilities() {
+        return capabilities;
+    }
+
+    public Date getLastPinged() {
+        return lastPinged;
+    }
+
+    public Long getManagementServerId() {
+        return managementServerId;
+    }
+
+    public String getClusterId() {
+        return clusterId;
+    }
+
+    public String getClusterName() {
+        return clusterName;
+    }
+
+    public String getClusterType() {
+        return clusterType;
+    }
+
+    public Boolean getLocalStorageActive() {
+        return localStorageActive;
+    }
+
+    public Date getCreated() {
+        return created;
+    }
+
+    public Date getRemoved() {
+        return removed;
+    }
+
+    public String getEvents() {
+        return events;
+    }
+
+    public Boolean getHasEnoughCapacity() {
+        return hasEnoughCapacity;
+    }
+
+    public Boolean getSuitableForMigration() {
+        return suitableForMigration;
+    }
+
+    public String getHypervisorVersion() {
+        return hypervisorVersion;
+    }
+
+    public Boolean getHaHost() {
+        return haHost;
+    }
 }

api/src/org/apache/cloudstack/api/response/NicResponse.java

@@ -16,15 +16,14 @@
 // under the License.
 package org.apache.cloudstack.api.response;
 
-import java.util.List;
-
+import com.cloud.serializer.Param;
+import com.cloud.vm.Nic;
+import com.google.gson.annotations.SerializedName;
 import org.apache.cloudstack.api.ApiConstants;
 import org.apache.cloudstack.api.BaseResponse;
 import org.apache.cloudstack.api.EntityReference;
 
-import com.cloud.serializer.Param;
-import com.cloud.vm.Nic;
-import com.google.gson.annotations.SerializedName;
+import java.util.List;
 
 @SuppressWarnings("unused")
 @EntityReference(value = Nic.class)
@@ -221,4 +220,79 @@ public void setNsxLogicalSwitchPort(String nsxLogicalSwitchPort) {
         this.nsxLogicalSwitchPort = nsxLogicalSwitchPort;
     }
 
+    public String getNetworkId() {
+        return networkId;
+    }
+
+    public String getNetworkName() {
+        return networkName;
+    }
+
+    public String getNetmask() {
+        return netmask;
+    }
+
+    public String getGateway() {
+        return gateway;
+    }
+
+    public String getIsolationUri() {
+        return isolationUri;
+    }
+
+    public String getBroadcastUri() {
+        return broadcastUri;
+    }
+
+    public String getTrafficType() {
+        return trafficType;
+    }
+
+    public String getType() {
+        return type;
+    }
+
+    public Boolean getDefault() {
+        return isDefault;
+    }
+
+    public String getMacAddress() {
+        return macAddress;
+    }
+
+    public String getIpaddress() {
+        return ipaddress;
+    }
+
+    public String getIp6Gateway() {
+        return ip6Gateway;
+    }
+
+    public String getIp6Cidr() {
+        return ip6Cidr;
+    }
+
+    public String getIp6Address() {
+        return ip6Address;
+    }
+
+    public List<NicSecondaryIpResponse> getSecondaryIps() {
+        return secondaryIps;
+    }
+
+    public String getDeviceId() {
+        return deviceId;
+    }
+
+    public String getVmId() {
+        return vmId;
+    }
+
+    public String getNsxLogicalSwitch() {
+        return nsxLogicalSwitch;
+    }
+
+    public String getNsxLogicalSwitchPort() {
+        return nsxLogicalSwitchPort;
+    }
 }

api/src/org/apache/cloudstack/api/response/StoragePoolResponse.java

@@ -309,4 +309,12 @@ public void setSuitableForMigration(Boolean suitableForMigration) {
     public void setOverProvisionFactor(String overProvisionFactor) {
         this.overProvisionFactor = overProvisionFactor;
     }
+
+    public String getOverProvisionFactor() {
+        return overProvisionFactor;
+    }
+
+    public Boolean getSuitableForMigration() {
+        return suitableForMigration;
+    }
 }

api/src/org/apache/cloudstack/api/response/UserVmResponse.java

@@ -813,4 +813,28 @@ public void setDetails(Map details) {
     public void setOsTypeId(Long osTypeId) {
         this.osTypeId = osTypeId;
     }
+
+    public Set<Long> getTagIds() {
+        return tagIds;
+    }
+
+    public void setTagIds(Set<Long> tagIds) {
+        this.tagIds = tagIds;
+    }
+
+    public Map getDetails() {
+        return details;
+    }
+
+    public Boolean getDynamicallyScalable() {
+        return isDynamicallyScalable;
+    }
+
+    public void setDynamicallyScalable(Boolean dynamicallyScalable) {
+        isDynamicallyScalable = dynamicallyScalable;
+    }
+
+    public Long getOsTypeId() {
+        return osTypeId;
+    }
 }