renderers/faas/src/main/java/org/opendaylight/groupbasedpolicy/renderer/faas/FaasTenantManagerListener.java

   1 /*
   2  * Copyright (c) 2015 Huawei Technologies and others. All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.groupbasedpolicy.renderer.faas;
   9
  10 import java.util.Collection;
  11 import java.util.concurrent.Executor;
  12 import org.opendaylight.controller.md.sal.binding.api.DataObjectModification;
  13 import org.opendaylight.controller.md.sal.binding.api.DataTreeChangeListener;
  14 import org.opendaylight.controller.md.sal.binding.api.DataTreeModification;
  15 import org.opendaylight.yang.gen.v1.urn.opendaylight.faas.logical.faas.common.rev151013.Uuid;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.TenantId;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.tenants.Tenant;
  18 import org.slf4j.Logger;
  19 import org.slf4j.LoggerFactory;
  20
  21 public class FaasTenantManagerListener implements DataTreeChangeListener<Tenant> {
  22
  23     private static final Logger LOG = LoggerFactory.getLogger(FaasTenantManagerListener.class);
  24     private final Executor executor;
  25     private final TenantId gbpTenantId;
  26     private final Uuid faasTenantId;
  27     private final FaasPolicyManager policyManager;
  28
  29     public FaasTenantManagerListener(FaasPolicyManager policyManager, TenantId gbpTenantId, Uuid faasTenantId,
  30             Executor executor) {
  31         this.executor = executor;
  32         this.faasTenantId = faasTenantId;
  33         this.gbpTenantId = gbpTenantId;
  34         this.policyManager = policyManager;
  35     }
  36
  37     @Override
  38     public void onDataTreeChanged(final Collection<DataTreeModification<Tenant>> changes) {
  39         executor.execute(() -> executeEvent(changes));
  40     }
  41
  42     private void executeEvent(final Collection<DataTreeModification<Tenant>> changes) {
  43         for (DataTreeModification<Tenant> change: changes) {
  44             DataObjectModification<Tenant> rootNode = change.getRootNode();
  45             switch (rootNode.getModificationType()) {
  46                 case DELETE:
  47                     final Tenant tenant = rootNode.getDataBefore();
  48                     if (tenant.getId().equals(gbpTenantId)) {
  49                         LOG.info("Removed gbp Tenant {}  -- faas Tenant {}", gbpTenantId.getValue(),
  50                                 faasTenantId.getValue());
  51                         this.policyManager.removeTenantLogicalNetwork(gbpTenantId, faasTenantId);
  52                     }
  53                     break;
  54                 default:
  55                     break;
  56             }
  57         }
  58     }
  59 }