[jira] [Created] (STORM-2737) Storm-hive integration ,tuple support null value fields

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

jianhaozh created STORM-2737:
--------------------------------

             Summary: Storm-hive integration ,tuple support null value fields
                 Key: STORM-2737
                 URL: https://issues.apache.org/jira/browse/STORM-2737
             Project: Apache Storm
          Issue Type: Bug
          Components: storm-hive
            Reporter: jianhaozh


code in the file : org.apache.storm.hive.bolt.mapper.DelimitedRecordHiveMapper
the method mapRecord seems not support not decleared fields,when the tuple does not contains field,it will throw the null pointer error;
so i had the blow solution:
{code:java}
// Some comments here
	    @Override
	    public byte[] mapRecord(Tuple tuple) {
	        StringBuilder builder = new StringBuilder();
	        if(this.columnFields != null) {
	            for(String field: this.columnFields) {
	                builder.append(tuple.contains(field)?tuple.getValueByField(field) :null);
	                builder.append(fieldDelimiter);
	            }
	        }
	        return builder.toString().getBytes();
	    }

{code}
just check contains and put null into it;



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