git.opendaylight Code Review - netconf.git/blob

   1 /*
   2  * Copyright (c) 2017 Cisco Systems, Inc. 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.netconf.client.mdsal.impl;
   9
  10 import com.google.common.collect.Iterables;
  11 import java.util.Collection;
  12 import java.util.Map;
  13 import javax.annotation.PreDestroy;
  14 import javax.inject.Inject;
  15 import javax.inject.Singleton;
  16 import org.eclipse.jdt.annotation.NonNull;
  17 import org.opendaylight.mdsal.binding.api.ClusteredDataTreeChangeListener;
  18 import org.opendaylight.mdsal.binding.api.DataBroker;
  19 import org.opendaylight.mdsal.binding.api.DataTreeIdentifier;
  20 import org.opendaylight.mdsal.binding.api.DataTreeModification;
  21 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  22 import org.opendaylight.netconf.client.mdsal.api.CredentialProvider;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.keystore.rev171017.Keystore;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.keystore.rev171017.keystore.entry.KeyCredential;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.keystore.rev171017.keystore.entry.KeyCredentialKey;
  26 import org.opendaylight.yangtools.concepts.Registration;
  27 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  28 import org.osgi.service.component.annotations.Activate;
  29 import org.osgi.service.component.annotations.Component;
  30 import org.osgi.service.component.annotations.Deactivate;
  31 import org.osgi.service.component.annotations.Reference;
  32 import org.slf4j.Logger;
  33 import org.slf4j.LoggerFactory;
  34
  35 @Singleton
  36 @Component(service = CredentialProvider.class)
  37 public final class DefaultCredentialProvider
  38         implements CredentialProvider, ClusteredDataTreeChangeListener<Keystore>, AutoCloseable {
  39     private static final Logger LOG = LoggerFactory.getLogger(DefaultCredentialProvider.class);
  40
  41     private final @NonNull Registration reg;
  42
  43     private volatile @NonNull Map<KeyCredentialKey, KeyCredential> credentials = Map.of();
  44
  45     @Inject
  46     @Activate
  47     public DefaultCredentialProvider(@Reference final DataBroker dataBroker) {
  48         reg = dataBroker.registerDataTreeChangeListener(
  49             DataTreeIdentifier.create(LogicalDatastoreType.CONFIGURATION, InstanceIdentifier.create(Keystore.class)),
  50             this);
  51     }
  52
  53     @Deactivate
  54     @PreDestroy
  55     @Override
  56     public void close() {
  57         reg.close();
  58     }
  59
  60     @Override
  61     public KeyCredential credentialForId(final String id) {
  62         return credentials.get(new KeyCredentialKey(id));
  63     }
  64
  65     @Override
  66     public void onDataTreeChanged(final Collection<DataTreeModification<Keystore>> changes) {
  67         final var keystore = Iterables.getLast(changes).getRootNode().getDataAfter();
  68         final var newCredentials = keystore != null ? keystore.nonnullKeyCredential()
  69             : Map.<KeyCredentialKey, KeyCredential>of();
  70         LOG.debug("Updating to {} credentials", newCredentials.size());
  71         credentials = newCredentials;
  72     }
  73 }