Bug 206861 The data set cache should handle IOException and the cancel request from customer
The data set data will be saved into disk file in the first query and it will be loaded in the later time. The processing of write disk file may be cancelled by customer request or IOException. Using the data from the bad file will cause error.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/executor/cache/SmartCacheHelper.java
else
		{
			initOdaResult( cacheRequest, odaResultSet, rsMeta, stopSign );
		}
		return this.resultSetCache;
	}
	/**
	 * @param cacheRequest
	 * @param odaResultSet
	 * @param rsMeta
	 * @param ob
	 * @param stopSign
	 * @throws DataException
	 */
	private ResultSetCache getDistinctResultSetCache(
			CacheRequest cacheRequest, ResultSet odaResultSet,
			IResultClass rsMeta, StopSign stopSign ) throws DataException
	{
		SmartCacheHelper smartCacheHelper = new SmartCacheHelper( this.session );
		ResultSetCache smartCache = smartCacheHelper.getSortedResultSetCache( new CacheRequest( 0,
				null,
				getSortSpec( rsMeta ),
				cacheRequest.getEventHandler( ),
				true ),
				odaResultSet,
				rsMeta,
				stopSign);
		initInstance( cacheRequest, new OdiAdapter( smartCache ), rsMeta, stopSign );
		return this.resultSetCache;
	}