nemo-impl/src/main/java/org/opendaylight/nemo/user/vnspacemanager/structurestyle/deleteintent/DeleteConnection.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 org.opendaylight.controller.md.sal.binding.api.DataBroker;\r
  11 import org.opendaylight.nemo.user.tenantmanager.TenantManage;\r
  12 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.nemo.common.rev151010.ConnectionId;\r
  13 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.nemo.common.rev151010.UserId;\r
  14 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.nemo.intent.rev151010.Users;\r
  15 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.nemo.intent.rev151010.user.intent.Objects;\r
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.nemo.intent.rev151010.user.intent.objects.Connection;\r
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.nemo.intent.rev151010.user.intent.objects.ConnectionKey;\r
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.nemo.intent.rev151010.users.User;\r
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.nemo.intent.rev151010.users.UserKey;\r
  20 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;\r
  21 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;\r
  22 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;\r
  23 import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;\r
  24 import com.google.common.util.concurrent.CheckedFuture;\r
  25 import com.google.common.util.concurrent.FutureCallback;\r
  26 import com.google.common.util.concurrent.Futures;\r
  27 import org.slf4j.Logger;\r
  28 import org.slf4j.LoggerFactory;\r
  29 \r
  30 import java.util.List;\r
  31 \r
  32 /**\r
  33  * Created by z00293636 on 2015/9/2.\r
  34  */\r
  35 public class DeleteConnection {\r
  36 \r
  37     private DataBroker dataBroker;\r
  38     private TenantManage tenantManage;\r
  39     private static final Logger LOG = LoggerFactory.getLogger(DeleteConnection.class);\r
  40 \r
  41     public DeleteConnection(DataBroker dataBroker, TenantManage tenantManage)\r
  42     {\r
  43         this.dataBroker = dataBroker;\r
  44         this.tenantManage = tenantManage;\r
  45     }\r
  46 \r
  47     public String DeleteConnectionHandling(UserId userId, ConnectionId connectionId)\r
  48     {\r
  49         Boolean ConnInstanceExist = false;\r
  50         String errorInfo = null;\r
  51 \r
  52         tenantManage.fetchVNSpace(userId);\r
  53         User user = tenantManage.getUser();\r
  54 \r
  55         if (user != null)\r
  56         {\r
  57             if (user.getObjects() != null)\r
  58             {\r
  59                 if (user.getObjects().getConnection() != null)\r
  60                 {\r
  61                     List<Connection> connectionList = tenantManage.getUser().getObjects().getConnection();\r
  62 \r
  63                     for (Connection connection : connectionList)\r
  64                     {\r
  65                         if (connection.getConnectionId().equals(connectionId))\r
  66                         {\r
  67                             ConnInstanceExist = true;\r
  68                             break;\r
  69                         }\r
  70                     }\r
  71 \r
  72                     if (ConnInstanceExist)\r
  73                     {\r
  74                         DeleteConnInstance(userId, connectionId);\r
  75                     }\r
  76                     else\r
  77                     {\r
  78                         errorInfo = "The connection instance"+connectionId.toString()+ "is not exit. Could not be deleted.";\r
  79                     }\r
  80 \r
  81                 }\r
  82                 else\r
  83                 {\r
  84                     errorInfo = "There are no connection instances in data store.";\r
  85                 }\r
  86             }\r
  87         }\r
  88         else\r
  89         {\r
  90             errorInfo = "There are no connection instances in data store.";\r
  91         }\r
  92 \r
  93         return errorInfo;\r
  94     }\r
  95 \r
  96     private void DeleteConnInstance(UserId userId, ConnectionId connectionId)\r
  97     {\r
  98         WriteTransaction t = dataBroker.newWriteOnlyTransaction();\r
  99         UserKey userKey = new UserKey(userId);\r
 100         ConnectionKey connectionKey = new ConnectionKey(connectionId);\r
 101 \r
 102         InstanceIdentifier<Connection> connectionid = InstanceIdentifier.builder(Users.class).child(User.class, userKey).child(Objects.class).child(Connection.class,connectionKey).build();\r
 103         t.delete(LogicalDatastoreType.CONFIGURATION, connectionid);\r
 104         CheckedFuture<Void, TransactionCommitFailedException> f = t.submit();\r
 105         Futures.addCallback(f, new FutureCallback<Void>() {\r
 106             @Override\r
 107             public void onFailure(Throwable t) {\r
 108                 LOG.error("Could not write endpoint base container", t);\r
 109             }\r
 110 \r
 111             @Override\r
 112             public void onSuccess(Void result) {\r
 113             }\r
 114         });\r
 115     }\r
 116 }\r