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.concurrent.ScheduledExecutorService;
  11
  12 import com.google.common.annotations.VisibleForTesting;
  13 import org.opendaylight.controller.md.sal.binding.api.DataChangeListener;
  14 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeEvent;
  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.opendaylight.yangtools.yang.binding.DataObject;
  19 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  20 import org.slf4j.Logger;
  21 import org.slf4j.LoggerFactory;
  22
  23 public class FaasTenantManagerListener implements DataChangeListener {
  24
  25     private static final Logger LOG = LoggerFactory.getLogger(FaasTenantManagerListener.class);
  26     private final ScheduledExecutorService executor;
  27     private final TenantId gbpTenantId;
  28     private final Uuid faasTenantId;
  29     private final FaasPolicyManager policyManager;
  30
  31     public FaasTenantManagerListener(FaasPolicyManager policyManager, TenantId gbpTenantId, Uuid faasTenantId,
  32             ScheduledExecutorService executor) {
  33         this.executor = executor;
  34         this.faasTenantId = faasTenantId;
  35         this.gbpTenantId = gbpTenantId;
  36         this.policyManager = policyManager;
  37     }
  38
  39     @Override
  40     public void onDataChanged(final AsyncDataChangeEvent<InstanceIdentifier<?>, DataObject> change) {
  41         executor.execute(new Runnable() {
  42
  43             public void run() {
  44                 executeEvent(change);
  45             }
  46         });
  47     }
  48
  49     @VisibleForTesting
  50     void executeEvent(final AsyncDataChangeEvent<InstanceIdentifier<?>, DataObject> change) {
  51         // Remove
  52         for (InstanceIdentifier<?> iid : change.getRemovedPaths()) {
  53             DataObject old = change.getOriginalData().get(iid);
  54             if (old == null) {
  55                 continue;
  56             }
  57             if (old instanceof Tenant) {
  58                 Tenant tenant = (Tenant) old;
  59                 if (tenant.getId().equals(gbpTenantId)) {
  60                     LOG.info("Removed gbp Tenant {}  -- faas Tenant {}", gbpTenantId.getValue(),
  61                             faasTenantId.getValue());
  62                     this.policyManager.removeTenantLogicalNetwork(gbpTenantId, faasTenantId);
  63                 }
  64             }
  65         }
  66     }
  67 }