content: // Licensed to the Apache Software Foundation (ASF) under one
  // or more contributor license agreements.  See the NOTICE file
  // distributed with this work for additional information
  // regarding copyright ownership.  The ASF licenses this file
  // to you 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.  See the License for the
  // specific language governing permissions and limitations
  // under the License.
  
  package org.apache.cloudstack.network.contrail.model;
  
  import java.io.IOException;
  
  import org.apache.cloudstack.network.contrail.management.ContrailManager;
  
  import com.cloud.exception.InternalErrorException;
  import com.cloud.network.Network;
  import com.cloud.vm.NicVO;
  import com.cloud.vm.VMInstanceVO;
  
  import net.juniper.contrail.api.ApiConnector;
  import net.juniper.contrail.api.types.MacAddressesType;
  import net.juniper.contrail.api.types.VirtualMachineInterface;
  import net.juniper.contrail.api.types.VirtualMachineInterfacePropertiesType;
  
  public class VMInterfaceModel extends ModelObjectBase {
  
      private String _uuid;
  
      /**
       * properties
       */
      private String _vmName;
      private int _deviceId;
      private boolean _netActive;
      private boolean _nicActive;
      private String _serviceTag;
      private String _networkId;
      private String _macAddress;
  
      /**
       * cached objects
       */
      private VirtualMachineModel _vmModel;
      private VirtualNetworkModel _vnModel;
      private VirtualMachineInterface _vmi;
  
      public VMInterfaceModel(String uuid) {
          _uuid = uuid;
      }
  
      public void addToVirtualMachine(VirtualMachineModel vmModel) {
          _vmModel = vmModel;
          if (vmModel != null) {
              vmModel.addSuccessor(this);
          }
      }
  
      public void addToVirtualNetwork(VirtualNetworkModel vnModel) {
          _vnModel = vnModel;
          if (vnModel != null) {
              vnModel.addSuccessor(this);
          }
      }
  
      public void build(ModelController controller, VMInstanceVO instance, NicVO nic) throws IOException {
          setProperties(controller, instance, nic);
  
          InstanceIpModel ipModel = getInstanceIp();
          String ipAddress = nic.getIPv4Address();
          if (ipAddress != null) {
              if (ipModel == null) {
                  ipModel = new InstanceIpModel(_vmName, _deviceId);
                  ipModel.addToVMInterface(this);
              }
              ipModel.setAddress(ipAddress);
          } else if (ipModel != null) {
              removeSuccessor(ipModel);
          }
  
          _macAddress = nic.getMacAddress();
      }
  
      @Override
      public int compareTo(ModelObject o) {
          VMInterfaceModel other;
          try {
              other = (VMInterfaceModel)o;
          } catch (ClassCastException ex) {
              String clsname = o.getClass().getName();
              return VMInterfaceModel.class.getName().compareTo(clsname);
          }
          return _uuid.compareTo(other._uuid);
      }
  
      @Override
      public void delete(ModelController controller) throws IOException {
          for (ModelObject successor : successors()) {
              successor.delete(controller);
          }
  
          ApiConnector api = controller.getApiAccessor();
          api.delete(VirtualMachineInterface.class, _uuid);
      }
  
      @Override
      public void destroy(ModelController controller) throws IOException {
          delete(controller);
  
          for (ModelObject successor : successors()) {
              successor.destroy(controller);
          }
          clearSuccessors();
      }
  
      public InstanceIpModel getInstanceIp() {
          for (ModelObject successor : successors()) {
              if (successor.getClass() == InstanceIpModel.class) {
                  return (InstanceIpModel)successor;
              }
          }
          return null;
      }
  
      public String getNetworkUuid() {
          return _networkId;
      }
  
      public VirtualNetworkModel getVirtualNetworkModel() {
          return _vnModel;
      }
  
      public String getUuid() {
          return _uuid;
      }
  
      public VirtualMachineInterface getVMInterface() {
          return _vmi;
      }
  
      public void setProperties(ModelController controller, VMInstanceVO instance, NicVO nic) throws IOException {
          _vmName = instance.getInstanceName();
          _deviceId = nic.getDeviceId();
          Network network = controller.getNetworkDao().findById(nic.getNetworkId());
  
          switch (nic.getState()) {
              case Allocated:
              case Reserved:
                  _nicActive = true;
                  break;
              default:
                  _nicActive = false;
                  break;
          }
  
          switch (network.getState()) {
              case Implemented:
              case Setup:
                  _netActive = true;
                  break;
              default:
                  _netActive = false;
                  break;
          }
          assert _vnModel != null;
          _networkId = _vnModel.getUuid();
      }
  
      public void setActive() {
          _nicActive = true;
      }
  
      void setServiceTag(String tag) {
          _serviceTag = tag;
      }
  
      @Override
      public void update(ModelController controller) throws InternalErrorException, IOException {
          if (!_netActive || !_nicActive) {
              logger.debug("vm interface update, _netActive: " + _netActive + ", _nicActive: " + _nicActive);
              delete(controller);
              return;
          }
          if (_vmModel == null) {
              throw new InternalErrorException("virtual-machine not set on VMI: " + _uuid);
          }
          if (_vnModel == null) {
              throw new InternalErrorException("virtual-network not set on VMI: " + _uuid);
          }
          ContrailManager manager = controller.getManager();
          ApiConnector api = controller.getApiAccessor();
  
          VirtualMachineInterface vmi = (VirtualMachineInterface)api.findById(VirtualMachineInterface.class, _uuid);
          boolean create = false;
          if (vmi == null) {
              create = true;
              vmi = new VirtualMachineInterface();
              vmi.setParent(_vmModel.getVirtualMachine());
              vmi.setName(manager.getVifNameByVmName(_vmModel.getInstanceName(), _deviceId));
              vmi.setUuid(_uuid);
              vmi.setVirtualNetwork(_vnModel.getVirtualNetwork());
          } else {
              // Do not try to update VMI to routing-instance references. These are managed by schema-transformer.
              vmi.clearRoutingInstance();
          }
          _vmi = vmi;
          if (_macAddress != null) {
              MacAddressesType mac = new MacAddressesType();
              mac.addMacAddress(_macAddress);
              vmi.setMacAddresses(mac);
          }
  
          if (_serviceTag != null) {
              vmi.setProperties(new VirtualMachineInterfacePropertiesType(_serviceTag, null));
          }
  
          if (create) {
              if (!api.create(vmi)) {
                  throw new InternalErrorException("Unable to create virtual-machine-interface " + _uuid);
              }
          } else {
              if (!api.update(vmi)) {
                  throw new InternalErrorException("Unable to update virtual-machine-interface " + _uuid);
              }
          }
  
          api.read(vmi);
  
          int ipCount = 0;
          for (ModelObject successor : successors()) {
              if (successor.getClass() == InstanceIpModel.class) {
                  ipCount++;
              }
              successor.update(controller);
          }
          // TODO: if there are no instance-ip successors present and we have an instance-ip object reference
          // delete the object.
          if (ipCount == 0) {
              logger.warn("virtual-machine-interface " + _uuid + " has no instance-ip");
          }
      }
  
      @Override
      public boolean verify(ModelController controller) {
          // TODO Auto-generated method stub
          return false;
      }
  
      @Override
      public boolean compare(ModelController controller, ModelObject current) {
          // TODO Auto-generated method stub
          return true;
      }
  
  }
  