epugh commented on code in PR #4320:
URL: https://github.com/apache/solr/pull/4320#discussion_r3176994369


##########
solr/solrj-streaming/src/java/org/apache/solr/client/solrj/io/stream/RandomStream.java:
##########
@@ -56,9 +57,8 @@
  */
 public class RandomStream extends TupleStream implements Expressible {
 
-  private String solrCloud;
-  // TODO: replace all Map<String, String> in stream handlers by 
ModifiableSolrParams ?

Review Comment:
   nice clean up!



##########
solr/solrj-streaming/src/java/org/apache/solr/client/solrj/io/stream/DeepRandomStream.java:
##########
@@ -170,8 +171,8 @@ public StreamExpression toExpression(StreamFactory factory) 
throws IOException {
       }
     }
 
-    // solrCloud
-    expression.addParameter(new StreamExpressionNamedParameter("solrCloud", 
solrCloud));

Review Comment:
   So we don't expose `solrCloud` as a property in our streaming expressions?   
Checking 
https://solr.apache.org/guide/solr/latest/query-guide/stream-source-reference.html#search-parameters
 it looks just fine!



##########
solr/solrj-streaming/src/java/org/apache/solr/client/solrj/io/SolrClientCache.java:
##########
@@ -76,36 +76,35 @@ public void setDefaultZKHost(String zkHost) {
     }
   }
 
-  public synchronized CloudSolrClient getCloudSolrClient(String 
connectionString) {
+  public synchronized CloudSolrClient getCloudSolrClient(
+      CloudSolrClient.CloudSolrClientConnection solrConnection) {
     ensureOpen();
-    Objects.requireNonNull(connectionString, "Connection string cannot be 
null!");
-    if (solrClients.containsKey(connectionString)) {
-      return (CloudSolrClient) solrClients.get(connectionString);
+    Objects.requireNonNull(solrConnection, "'solrConnection' cannot be null!");
+    String cacheKey = solrConnection.toString();
+    if (solrClients.containsKey(cacheKey)) {
+      return (CloudSolrClient) solrClients.get(cacheKey);
     }
     // Can only use ZK ACLs if there is a default ZK Host, and the given ZK 
host contains that
     // default.
     // Basically the ZK ACLs are assumed to be only used for the default ZK 
host,
     // thus we should only provide the ACLs to that Zookeeper instance.
     boolean canUseACLs = false;
-    var cloudClientConnection = 
CloudSolrClient.CloudSolrClientConnection.parse(connectionString);
-    if (cloudClientConnection.isZk()) {
-      String chroot = cloudClientConnection.zkChroot();
-      String zkHostNoChroot =
-          chroot != null && connectionString.endsWith(chroot)
-              ? connectionString.substring(0, connectionString.length() - 
chroot.length())
-              : connectionString;
+    if (solrConnection.isZk()) {

Review Comment:
   I don't know that I love the short cut `isZK` versus `isZooKeeper` (or 
however we case it?   my just be my style.   



##########
solr/solrj-streaming/src/java/org/apache/solr/client/solrj/io/SolrClientCache.java:
##########
@@ -76,36 +76,35 @@ public void setDefaultZKHost(String zkHost) {
     }
   }
 
-  public synchronized CloudSolrClient getCloudSolrClient(String 
connectionString) {
+  public synchronized CloudSolrClient getCloudSolrClient(
+      CloudSolrClient.CloudSolrClientConnection solrConnection) {
     ensureOpen();
-    Objects.requireNonNull(connectionString, "Connection string cannot be 
null!");
-    if (solrClients.containsKey(connectionString)) {
-      return (CloudSolrClient) solrClients.get(connectionString);
+    Objects.requireNonNull(solrConnection, "'solrConnection' cannot be null!");
+    String cacheKey = solrConnection.toString();
+    if (solrClients.containsKey(cacheKey)) {
+      return (CloudSolrClient) solrClients.get(cacheKey);
     }
     // Can only use ZK ACLs if there is a default ZK Host, and the given ZK 
host contains that
     // default.
     // Basically the ZK ACLs are assumed to be only used for the default ZK 
host,
     // thus we should only provide the ACLs to that Zookeeper instance.
     boolean canUseACLs = false;
-    var cloudClientConnection = 
CloudSolrClient.CloudSolrClientConnection.parse(connectionString);
-    if (cloudClientConnection.isZk()) {
-      String chroot = cloudClientConnection.zkChroot();
-      String zkHostNoChroot =
-          chroot != null && connectionString.endsWith(chroot)
-              ? connectionString.substring(0, connectionString.length() - 
chroot.length())
-              : connectionString;
+    if (solrConnection.isZk()) {

Review Comment:
   I guess it's fine..  it reads pretty easy.



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