[jira] [Updated] (HBASE-21174) [REST] Failed to parse empty qualifier in TableResource#getScanResource

["Andrew Purtell (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-21174?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrew Purtell updated HBASE-21174:
-----------------------------------
    Fix Version/s:     (was: 1.5.0)

> [REST] Failed to parse empty qualifier in TableResource#getScanResource
> -----------------------------------------------------------------------
>
>                 Key: HBASE-21174
>                 URL: https://issues.apache.org/jira/browse/HBASE-21174
>             Project: HBase
>          Issue Type: Bug
>          Components: REST
>    Affects Versions: 3.0.0, 2.2.0
>            Reporter: Guangxu Cheng
>            Assignee: Guangxu Cheng
>            Priority: Major
>             Fix For: 3.0.0, 2.2.0, 1.4.8, 2.1.1, 2.0.3
>
>         Attachments: HBASE-21174.branch-1.001.patch, HBASE-21174.master.001.patch, HBASE-21174.master.002.patch
>
>
> {code:xml}
> GET /t1/*?column=f:c1&column=f:
> {code}
> If I want to get the values of 'f:'(empty qualifier) for all rows in the table by rest server, I will send the above request. However, this request will return all column values.
> {code:java|title=TableResource#getScanResource|borderStyle=solid}
>       for (String csplit : column) {
>         String[] familysplit = csplit.trim().split(":");
>         if (familysplit.length == 2) {
>           if (familysplit[1].length() > 0) {
>             if (LOG.isTraceEnabled()) {
>               LOG.trace("Scan family and column : " + familysplit[0] + "  " + familysplit[1]);
>             }
>             tableScan.addColumn(Bytes.toBytes(familysplit[0]), Bytes.toBytes(familysplit[1]));
>           } else {
>             tableScan.addFamily(Bytes.toBytes(familysplit[0]));
>             if (LOG.isTraceEnabled()) {
>               LOG.trace("Scan family : " + familysplit[0] + " and empty qualifier.");
>             }
>             tableScan.addColumn(Bytes.toBytes(familysplit[0]), null);
>           }
>         } else if (StringUtils.isNotEmpty(familysplit[0])) {
>           if (LOG.isTraceEnabled()) {
>             LOG.trace("Scan family : " + familysplit[0]);
>           }
>           tableScan.addFamily(Bytes.toBytes(familysplit[0]));
>         }
>       }
> {code}
> Through the above code, when the column has an empty qualifier, the empty qualifier cannot be parsed correctly.In other words, 'f:'(empty qualifier) and 'f' (column family) are considered to have the same meaning, which is wrong.



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