Class SolrConfig

solr/core/src/java/org/apache/solr/core/SolrConfig.java:99–1125

Provides a static reference to a Config object modeling the main configuration data for a Solr core -- typically found in "solrconfig.xml".

 * core -- typically found in "solrconfig.xml".
 */
public class SolrConfig implements MapWriter {

  private static final Logger log = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());

  public static final String DEFAULT_CONF_FILE = "solrconfig.xml";
  public static final String MIN_PREFIX_QUERY_TERM_LENGTH = "minPrefixQueryTermLength";
  public static final int DEFAULT_MIN_PREFIX_QUERY_TERM_LENGTH = -1;
  private final String resourceName;

  private int znodeVersion;
  ConfigNode root;
  int rootDataHashCode;
  private final SolrResourceLoader resourceLoader;
  private Properties substituteProperties;

  private RequestParams requestParams;

  public enum PluginOpts {
    MULTI_OK,
    REQUIRE_NAME,
    REQUIRE_NAME_IN_OVERLAY,
    REQUIRE_CLASS,
    LAZY,
    // EnumSet.of and/or EnumSet.copyOf(Collection) are annoying
    // because of type determination
    NOOP
  }

  private int multipartUploadLimitKB;

  private int formUploadLimitKB;

  private final SolrRequestParsers solrRequestParsers;

  /**
   * TEST-ONLY: Creates a configuration instance from an instance directory and file name
   *
   * @param instanceDir the directory used to create the resource loader
   * @param name the configuration name used by the loader if the stream is null
   */
  public SolrConfig(Path instanceDir, String name) throws IOException {
    this(new SolrResourceLoader(instanceDir), name, null);
  }

  public static SolrConfig readFromResourceLoader(
      SolrResourceLoader loader, String name, Properties substitutableProperties) {
    try {
      return new SolrConfig(loader, name, substitutableProperties);
    } catch (Exception e) {
      String resource;
      if (loader instanceof ZkSolrResourceLoader) {
        resource = name;
      } else {
        resource = loader.getConfigPath().resolve(name).toString();
      }
      throw new SolrException(
          ErrorCode.SERVER_ERROR, "Error loading solr config from " + resource, e);
    }