Ejemplo n.º 1
0
 /**
  * Returns a list containing all the names of existing snapshots in the configured repository
  *
  * @return List of string with the snapshot names
  */
 public List<String> showSnapshots() {
   ClusterAdminClient adminClient = this.clientFactory.client().admin().cluster();
   GetSnapshotsRequestBuilder builder = new GetSnapshotsRequestBuilder(adminClient);
   builder.setRepository(repoConfig.getName());
   GetSnapshotsResponse getSnapshotsResponse = builder.execute().actionGet();
   return getSnapshotsResponse
       .getSnapshots()
       .stream()
       .map(SnapshotInfo::name)
       .collect(Collectors.toList());
 }
Ejemplo n.º 2
0
  /**
   * You cannot restore an open existing index, therefore we first check if an index exists that is
   * in the snapshot. If the index exists we close the index before we start the restore action.
   *
   * @param snapshot String containing the name of the snapshot in the configured repository to
   *     restore
   */
  public void restoreSnapshot(String snapshot) {
    ClusterAdminClient adminClient = this.clientFactory.client().admin().cluster();

    // Obtain the snapshot and check the indices that are in the snapshot
    GetSnapshotsRequestBuilder builder = new GetSnapshotsRequestBuilder(adminClient);
    builder.setRepository(repoConfig.getName());
    builder.setSnapshots(snapshot);
    GetSnapshotsResponse getSnapshotsResponse = builder.execute().actionGet();

    // Check if the index exists and if so, close it before we can restore it.
    ImmutableList<String> indices = getSnapshotsResponse.getSnapshots().get(0).indices();
    CloseIndexRequestBuilder closeIndexRequestBuilder =
        new CloseIndexRequestBuilder(this.clientFactory.client().admin().indices());
    closeIndexRequestBuilder.setIndices(indices.toArray(new String[indices.size()]));
    closeIndexRequestBuilder.execute().actionGet();

    // Now execute the actual restore action
    RestoreSnapshotRequestBuilder restoreBuilder = new RestoreSnapshotRequestBuilder(adminClient);
    restoreBuilder.setRepository(repoConfig.getName()).setSnapshot(snapshot);
    restoreBuilder.execute().actionGet();
    logger.info("The snapshot {} is restored", snapshot);
  }