Method doLocalMode

solr/core/src/java/org/apache/solr/cli/StreamTool.java:297–308

Runs a streaming expression in the local process of the CLI. Running locally means that parallelization support or those expressions requiring access to internal Solr capabilities will not function. @param expr The streaming expression to be parsed and run in the context of the CLI process @par

(String expr, StreamFactory streamFactory)

   *     locally.
   */
  private PushBackStream doLocalMode(String expr, StreamFactory streamFactory) throws Exception {

    // stdin is ONLY available in the local mode, not in the remote mode as it
    // requires access to System.in
    streamFactory.withFunctionName("stdin", StandardInStream.class);

    // LocalCatStream extends CatStream and disables the Solr cluster specific
    // logic about where to read data from.
    streamFactory.withFunctionName("cat", LocalCatStream.class);

    return new PushBackStream(streamFactory.constructStream(expr));
  }

  /**
   * Runs a streaming expression on a Solr collection via the /stream end point and returns the