How to use

com.redhat.lightblue.metadata.parser.JSONMetadataParser

constructor

private synchronized void initializeParser()
    throws NoSuchMethodException, InvocationTargetException, IllegalAccessException, IOException, InstantiationException {
  if (parser == null) {
    Extensions<JsonNode> extensions = new Extensions<>();
    extensions.addDefaultExtensions();
    Map<String, DataSourceConfiguration> ds = datasources.getDataSources();
    for (Map.Entry<String, DataSourceConfiguration> entry : ds.entrySet()) {
      Class<? extends DataStoreParser> tempParser = entry.getValue().getMetadataDataStoreParser();
      DataStoreParser backendParser = tempParser.newInstance();
      extensions.registerDataStoreParser(backendParser.getDefaultName(), backendParser);
    }
    parser = new JSONMetadataParser(extensions, new DefaultTypes(), NODE_FACTORY);
  }
}

private synchronized void initializeParser()
    throws NoSuchMethodException, InvocationTargetException, IllegalAccessException, IOException, InstantiationException {
  if (parser == null) {
    Extensions<JsonNode> extensions = new Extensions<>();
    extensions.addDefaultExtensions();
    Map<String, DataSourceConfiguration> ds = datasources.getDataSources();
    for (Map.Entry<String, DataSourceConfiguration> entry : ds.entrySet()) {
      Class<? extends DataStoreParser> tempParser = entry.getValue().getMetadataDataStoreParser();
      DataStoreParser backendParser = tempParser.newInstance();
      injectDependencies(backendParser);
      extensions.registerDataStoreParser(backendParser.getDefaultName(), backendParser);
    }
    parser = new JSONMetadataParser(extensions, new DefaultTypes(), NODE_FACTORY);
  }
}

private synchronized void initializeParser()
    throws NoSuchMethodException, InvocationTargetException, IllegalAccessException, IOException, InstantiationException {
  if (parser == null) {
    Extensions<JsonNode> extensions = new Extensions<>();
    extensions.addDefaultExtensions();
    Map<String, DataSourceConfiguration> ds = datasources.getDataSources();
    for (Map.Entry<String, DataSourceConfiguration> entry : ds.entrySet()) {
      Class<? extends DataStoreParser> tempParser = entry.getValue().getMetadataDataStoreParser();
      DataStoreParser backendParser = tempParser.newInstance();
      injectDependencies(backendParser);
      extensions.registerDataStoreParser(backendParser.getDefaultName(), backendParser);
    }
    parser = new JSONMetadataParser(extensions, new DefaultTypes(), NODE_FACTORY);
  }
}

/**
 * Creates an instance of {@link JSONMetadataParser}.
 *
 * @param backend - Name of backend to use.
 * @param fieldConstraintParsers - <i>(optional)</i>
 * {@link FieldConstraintParser}s to register on the {@link Extensions} used
 * to parse the {@link EntityMetadata}. If <code>null</code> then nothing
 * will be set.
 * @return An instance of {@link JSONMetadataParser}.
 */
public static JSONMetadataParser createJSONMetadataParser(
    String backend,
    Map<String, ? extends FieldConstraintParser<JsonNode>> fieldConstraintParsers) {
  FakeDataStoreParser<JsonNode> dsParser = new FakeDataStoreParser<>(backend);
  Extensions<JsonNode> extensions = new Extensions<>();
  extensions.registerDataStoreParser(dsParser.getDefaultName(), dsParser);
  extensions.addDefaultExtensions();
  if (fieldConstraintParsers != null) {
    for (Entry<String, ? extends FieldConstraintParser<JsonNode>> checker : fieldConstraintParsers.entrySet()) {
      extensions.registerFieldConstraintParser(checker.getKey(), checker.getValue());
    }
  }
  return new JSONMetadataParser(
      extensions,
      new DefaultTypes(),
      JsonNodeFactory.withExactBigDecimals(false));
}