keystore/keystore-legacy/src/main/java/org/opendaylight/netconf/keystore/legacy/impl/ConfigListener.java

   1 /*
   2  * Copyright (c) 2024 PANTHEON.tech, s.r.o. 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.keystore.legacy.impl;
   9
  10 import static java.util.Objects.requireNonNull;
  11
  12 import com.google.common.base.Stopwatch;
  13 import java.util.List;
  14 import org.eclipse.jdt.annotation.NonNullByDefault;
  15 import org.opendaylight.mdsal.binding.api.DataTreeChangeListener;
  16 import org.opendaylight.mdsal.binding.api.DataTreeModification;
  17 import org.opendaylight.netconf.keystore.legacy.impl.DefaultNetconfKeystoreService.ConfigStateBuilder;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.keystore.rev171017.Keystore;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.keystore.rev171017._private.keys.PrivateKey;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.keystore.rev171017.trusted.certificates.TrustedCertificate;
  21 import org.slf4j.Logger;
  22 import org.slf4j.LoggerFactory;
  23
  24 @NonNullByDefault
  25 record ConfigListener(DefaultNetconfKeystoreService keystore) implements DataTreeChangeListener<Keystore> {
  26     private static final Logger LOG = LoggerFactory.getLogger(ConfigListener.class);
  27
  28     ConfigListener {
  29         requireNonNull(keystore);
  30     }
  31
  32     @Override
  33     public void onInitialData() {
  34         keystore.runUpdate(builder -> {
  35             builder.privateKeys().clear();
  36             builder.trustedCertificates().clear();
  37         });
  38     }
  39
  40     @Override
  41     public void onDataTreeChanged(final List<DataTreeModification<Keystore>> changes) {
  42         LOG.debug("Starting update with {} changes", changes.size());
  43         final var sw = Stopwatch.createStarted();
  44         keystore.runUpdate(builder -> onDataTreeChanged(builder, changes));
  45         LOG.debug("Update finished in {}", sw);
  46     }
  47
  48     private static void onDataTreeChanged(final ConfigStateBuilder builder,
  49             final List<DataTreeModification<Keystore>> changes) {
  50         for (var change : changes) {
  51             LOG.debug("Processing change {}", change);
  52             final var rootNode = change.getRootNode();
  53
  54             for (var mod : rootNode.getModifiedChildren(PrivateKey.class)) {
  55                 switch (mod.modificationType()) {
  56                     case SUBTREE_MODIFIED, WRITE -> {
  57                         final var privateKey = mod.dataAfter();
  58                         builder.privateKeys().put(privateKey.requireName(), privateKey);
  59                     }
  60                     case DELETE -> builder.privateKeys().remove(mod.dataBefore().requireName());
  61                     default -> {
  62                         // no-op
  63                     }
  64                 }
  65             }
  66             for (var mod : rootNode.getModifiedChildren(TrustedCertificate.class)) {
  67                 switch (mod.modificationType()) {
  68                     case SUBTREE_MODIFIED, WRITE -> {
  69                         final var trustedCertificate = mod.dataAfter();
  70                         builder.trustedCertificates().put(trustedCertificate.requireName(), trustedCertificate);
  71                     }
  72                     case DELETE -> builder.trustedCertificates().remove(mod.dataBefore().requireName());
  73                     default -> {
  74                         // no-op
  75                     }
  76                 }
  77             }
  78         }
  79     }
  80 }