Method doRemoteMode

solr/core/src/java/org/apache/solr/cli/StreamTool.java:322–329

Runs a streaming expression on a Solr collection via the /stream end point and returns the results to the CLI. Requires a collection to be specified to send the expression to. Running remotely allows you to use all the standard Streaming Expression capabilities as the expression is running in a

(String expr, CommandLine cli)

   *     Solr /stream.
   */
  private PushBackStream doRemoteMode(String expr, CommandLine cli) throws Exception {

    String solrUrl = CLIUtils.normalizeSolrUrl(cli);
    String collection = cli.getOptionValue(COLLECTION_OPTION);

    return new PushBackStream(
        new SolrStream(solrUrl + "/solr/" + collection, params("qt", "/stream", "expr", expr)));
  }

  private static ModifiableSolrParams params(String... params) {
    if (params.length % 2 != 0) throw new RuntimeException("Params length should be even");