SOLR-14673: Add bin/solr stream CLI

solr/bin/solr

@@ -777,6 +777,12 @@ if [[ "$SCRIPT_CMD" == "delete" ]]; then
   exit $?
 fi
 
+# run a streaming expression
+if [[ "$SCRIPT_CMD" == "stream" ]]; then
+  run_tool $SCRIPT_CMD "$@"
+  exit $?
+fi
+
 # manage packages
 if [[ "$SCRIPT_CMD" == "package" ]]; then
   run_tool $SCRIPT_CMD $@
@@ -790,7 +796,7 @@ if [[ "$SCRIPT_CMD" == "auth" ]]; then
     echo -e "\nSolr server directory $SOLR_SERVER_DIR not found!\n"
     exit 1
   fi
-  
+
   if [ -z "${SOLR_HOME:-}" ]; then
     SOLR_HOME="$SOLR_SERVER_DIR/solr"
   elif [[ $SOLR_HOME != /* ]]; then
@@ -801,7 +807,7 @@ if [[ "$SCRIPT_CMD" == "auth" ]]; then
       SOLR_PID_DIR="$SOLR_HOME"
     fi
   fi
-  
+
   if [ -z "${AUTH_PORT:-}" ]; then
     for ID in $(ps auxww | grep java | grep start\.jar | awk '{print $2}' | sort -r)
       do
@@ -811,8 +817,8 @@ if [[ "$SCRIPT_CMD" == "auth" ]]; then
           break
         fi
       done
-  fi  
-  
+  fi
+
   run_tool auth $@ --solr-url "$SOLR_URL_SCHEME://$SOLR_TOOL_HOST:${AUTH_PORT:-8983}" --auth-conf-dir "$SOLR_HOME" "--solr-include-file" "$SOLR_INCLUDE"
   exit $?
 fi

solr/bin/solr.cmd

@@ -271,6 +271,7 @@ IF "%1"=="restart" goto set_script_cmd
 IF "%1"=="healthcheck" goto run_solrcli
 IF "%1"=="create" goto run_solrcli
 IF "%1"=="delete" goto run_solrcli
+IF "%1"=="stream" goto run_solrcli
 IF "%1"=="postlogs" goto run_solrcli
 IF "%1"=="zk" (
   set SCRIPT_CMD=zk

solr/core/src/java/org/apache/solr/cli/SolrCLI.java

@@ -310,6 +310,7 @@ private static Tool newTool(String toolType) throws Exception {
     else if ("post".equals(toolType)) return new PostTool();
     else if ("postlogs".equals(toolType)) return new PostLogsTool();
     else if ("version".equals(toolType)) return new VersionTool();
+    else if ("stream".equals(toolType)) return new StreamTool();
 
     // If you add a built-in tool to this class, add it here to avoid
     // classpath scanning
@@ -549,7 +550,7 @@ private static void printHelp() {
 
     print("Usage: solr COMMAND OPTIONS");
     print(
-        "       where COMMAND is one of: start, stop, restart, status, healthcheck, create, delete, version, zk, auth, assert, config, export, api, package, post");
+        "       where COMMAND is one of: start, stop, restart, status, healthcheck, create, delete, version, zk, auth, assert, config, export, api, package, post, stream");
     print("");
     print("  Standalone server example (start Solr running in the background on port 8984):");
     print("");
@@ -620,7 +621,7 @@ public static String normalizeSolrUrl(CommandLine cli) throws Exception {
           cli.hasOption("zk-host") ? cli.getOptionValue("zk-host") : cli.getOptionValue("zkHost");
       if (zkHost == null) {
         solrUrl = SolrCLI.getDefaultSolrUrl();
-        CLIO.getOutStream()
+        CLIO.getErrStream()
             .println(
                 "Neither --zk-host or --solr-url parameters provided so assuming solr url is "
                     + solrUrl