nemo-impl/src/main/java/org/opendaylight/nemo/user/vnspacemanager/structurestyle/deleteintent/DeleteNode.java

   1 /*\r
   2  * Copyright (c) 2015 Huawei, Inc. and others. All rights reserved.\r
   3  *\r
   4  * This program and the accompanying materials are made available under the\r
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,\r
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html\r
   7  */\r
   8 package org.opendaylight.nemo.user.vnspacemanager.structurestyle.deleteintent;\r
   9 \r
  10 import com.google.common.util.concurrent.CheckedFuture;\r
  11 import com.google.common.util.concurrent.FutureCallback;\r
  12 import com.google.common.util.concurrent.Futures;\r
  13 import org.opendaylight.controller.md.sal.binding.api.DataBroker;\r
  14 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;\r
  15 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;\r
  16 import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;\r
  17 import org.opendaylight.nemo.user.tenantmanager.TenantManage;\r
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.nemo.common.rev151010.NodeId;\r
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.nemo.common.rev151010.UserId;\r
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.nemo.intent.rev151010.Users;\r
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.nemo.intent.rev151010.user.intent.Objects;\r
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.nemo.intent.rev151010.user.intent.objects.Connection;\r
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.nemo.intent.rev151010.user.intent.objects.Node;\r
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.nemo.intent.rev151010.user.intent.objects.NodeKey;\r
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.nemo.intent.rev151010.users.User;\r
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.nemo.intent.rev151010.users.UserKey;\r
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.nemo.object.rev151010.connection.instance.EndNode;\r
  28 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;\r
  29 import org.slf4j.Logger;\r
  30 import org.slf4j.LoggerFactory;\r
  31 \r
  32 import java.util.List;\r
  33 \r
  34 /**\r
  35  * Created by z00293636 on 2015/9/2.\r
  36  */\r
  37 public class DeleteNode {\r
  38 \r
  39     private DataBroker dataBroker;\r
  40     private TenantManage tenantManage;\r
  41     private static final Logger LOG = LoggerFactory.getLogger(DeleteNode.class);\r
  42     private DeleteConnection deleteConnection;\r
  43 \r
  44     public DeleteNode(DataBroker dataBroker, TenantManage tenantManage){\r
  45         this.dataBroker = dataBroker;\r
  46         this.tenantManage = tenantManage;\r
  47         deleteConnection = new DeleteConnection(dataBroker, tenantManage);\r
  48     }\r
  49 \r
  50     public String DeleNodeHandling(UserId userId,NodeId nodeId){\r
  51         String errorInfo = null;\r
  52         Boolean NodeInstanceExist = false;\r
  53         tenantManage.fetchVNSpace(userId);\r
  54         User user = tenantManage.getUser();\r
  55         if (user != null){\r
  56             if (user.getObjects() != null){\r
  57                 if (user.getObjects().getNode() != null){\r
  58                     List<Node> nodeList = tenantManage.getUser().getObjects().getNode();\r
  59                     for (Node node : nodeList){\r
  60                         if (node.getNodeId().equals(nodeId)){\r
  61                             NodeInstanceExist = true;\r
  62                             DeleteNodeInstance(userId,nodeId);\r
  63 \r
  64                             if (user.getObjects().getConnection()!=null) {\r
  65                                 Boolean nodeconn = false;\r
  66                                 List<Connection> connectionList = user.getObjects().getConnection();\r
  67                                 for (Connection connection : connectionList){\r
  68                                     if (connection.getEndNode() != null){\r
  69                                         for (EndNode endNode : connection.getEndNode()){\r
  70                                             if (endNode.getNodeId().equals(nodeId)){\r
  71                                                 nodeconn = true;\r
  72                                             }\r
  73                                         }\r
  74                                         if (nodeconn){\r
  75                                             errorInfo = deleteConnection.DeleteConnectionHandling(userId,connection.getConnectionId());\r
  76                                         }\r
  77                                     }\r
  78                                 }\r
  79                             }\r
  80                         }\r
  81                     }\r
  82                     if (!NodeInstanceExist) {\r
  83                         errorInfo = "The node instance " +nodeId.getValue()+" is not exist.Could not be deleted";\r
  84                     }\r
  85                 }\r
  86                 else{\r
  87                     errorInfo = "There are no nodes instances in data store.";\r
  88                 }\r
  89             }\r
  90         }\r
  91         else{\r
  92             errorInfo = "There are no user in data store.";\r
  93         }\r
  94 \r
  95         return errorInfo;\r
  96     }\r
  97 \r
  98     private void DeleteNodeInstance(UserId userId,NodeId nodeId){\r
  99         WriteTransaction t = dataBroker.newWriteOnlyTransaction();\r
 100         UserKey userKey = new UserKey(userId);\r
 101         NodeKey nodeKey = new NodeKey(nodeId);\r
 102 \r
 103         InstanceIdentifier<Node> nodeid = InstanceIdentifier.builder(Users.class).child(User.class, userKey).child(Objects.class).child(Node.class,nodeKey).build();\r
 104         t.delete(LogicalDatastoreType.CONFIGURATION, nodeid);\r
 105         CheckedFuture<Void, TransactionCommitFailedException> f = t.submit();\r
 106         Futures.addCallback(f, new FutureCallback<Void>() {\r
 107             @Override\r
 108             public void onFailure(Throwable t) {\r
 109                 LOG.error("Could not write endpoint base container", t);\r
 110             }\r
 111 \r
 112             @Override\r
 113             public void onSuccess(Void result) {\r
 114             }\r
 115         });\r
 116     }\r
 117 }\r