Github user sohami commented on a diff in the pull request: https://github.com/apache/drill/pull/648#discussion_r87351891 --- Diff: exec/java-exec/src/main/java/org/apache/drill/exec/client/DrillClient.java --- @@ -223,19 +223,65 @@ public void connect(Properties props) throws RpcException { connect(null, props); } + /** + * Function to populate the endpointList with information of all the drillbits + * provided in the connection string by client + * @param endpointList - ArrayList of DrillbitEndpoints + * @param drillbits - One or more drillbit ip[:port] provided in connection string + */ + public void populateEndpointsList(ArrayList<DrillbitEndpoint> endpointList, String drillbits){ + + // If no information about drillbits is provided then just return empty list. + if(drillbits == null || drillbits.length() == 0){ + return; + } + final String[] connectInfo = drillbits.split(","); + + /* For direct connection we can get URL string having drillbit property as below: + drillbit=<ip>:<port> --- Use the IP and port specified as the Foreman IP and port + drillbit=<ip> --- Use the IP specified as the Foreman IP with default port in config file + drillbit=<ip1>:<port1>,<ip2>:<port2>... --- Randomly select the IP and port pair from the specified + list as the Foreman IP and port. + + Fetch ip address and port information for each drillbit and populate the list + */ + for(String info : connectInfo){ + info = info.trim(); + + if(info != null){ + // Split each info to get ip address and port value + final String[] drillbitInfo = info.split(":"); + + // Check for malformed ip:port string + if(drillbitInfo == null || drillbitInfo.length == 0){ --- End diff -- Length can be 0 here when the string just contain ":" In case of more than 2 ports right now I am falling back to default port. But as discussed changed it to throw new exception "InvalidConnectionInfoException"
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