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.rev231109.Keystore;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.keystore.rev231109._private.keys.PrivateKey;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.keystore.rev231109.keystore.entry.KeyCredential;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.keystore.rev231109.trusted.certificates.TrustedCertificate;
  22 import org.slf4j.Logger;
  23 import org.slf4j.LoggerFactory;
  24
  25 @NonNullByDefault
  26 record ConfigListener(DefaultNetconfKeystoreService keystore) implements DataTreeChangeListener<Keystore> {
  27     private static final Logger LOG = LoggerFactory.getLogger(ConfigListener.class);
  28
  29     ConfigListener {
  30         requireNonNull(keystore);
  31     }
  32
  33     @Override
  34     public void onInitialData() {
  35         keystore.runUpdate(builder -> {
  36             builder.privateKeys().clear();
  37             builder.trustedCertificates().clear();
  38         });
  39     }
  40
  41     @Override
  42     public void onDataTreeChanged(final List<DataTreeModification<Keystore>> changes) {
  43         LOG.debug("Starting update with {} changes", changes.size());
  44         final var sw = Stopwatch.createStarted();
  45         keystore.runUpdate(builder -> onDataTreeChanged(builder, changes));
  46         LOG.debug("Update finished in {}", sw);
  47     }
  48
  49     private static void onDataTreeChanged(final ConfigStateBuilder builder,
  50             final List<DataTreeModification<Keystore>> changes) {
  51         for (var change : changes) {
  52             LOG.debug("Processing change {}", change);
  53             final var rootNode = change.getRootNode();
  54
  55             for (var mod : rootNode.getModifiedChildren(PrivateKey.class)) {
  56                 switch (mod.modificationType()) {
  57                     case SUBTREE_MODIFIED, WRITE -> {
  58                         final var privateKey = mod.dataAfter();
  59                         builder.privateKeys().put(privateKey.requireName(), privateKey);
  60                     }
  61                     case DELETE -> builder.privateKeys().remove(mod.dataBefore().requireName());
  62                     default -> {
  63                         // no-op
  64                     }
  65                 }
  66             }
  67             for (var mod : rootNode.getModifiedChildren(TrustedCertificate.class)) {
  68                 switch (mod.modificationType()) {
  69                     case SUBTREE_MODIFIED, WRITE -> {
  70                         final var trustedCertificate = mod.dataAfter();
  71                         builder.trustedCertificates().put(trustedCertificate.requireName(), trustedCertificate);
  72                     }
  73                     case DELETE -> builder.trustedCertificates().remove(mod.dataBefore().requireName());
  74                     default -> {
  75                         // no-op
  76                     }
  77                 }
  78             }
  79             for (var mod : rootNode.getModifiedChildren(KeyCredential.class)) {
  80                 switch (mod.modificationType()) {
  81                     case SUBTREE_MODIFIED, WRITE -> {
  82                         final var keyCredential = mod.dataAfter();
  83                         builder.credentials().put(keyCredential.requireKeyId(), keyCredential);
  84                     }
  85                     case DELETE -> builder.credentials().remove(mod.dataBefore().requireKeyId());
  86                     default -> {
  87                         // no-op
  88                     }
  89                 }
  90             }
  91         }
  92     }
  93 }