Package com.sap.hadoop.windowing.query2.definition

Examples of com.sap.hadoop.windowing.query2.definition.OrderDef

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  public PartitionsIterator(WindowingInput wIn, QueryDef qDef) throws WindowingException
  {
    super();
    this.wIn = wIn;
    this.qDef = qDef;
    TableFuncDef tabDef = (TableFuncDef) qDef.getInput();
    TableFunctionEvaluator tEval = tabDef.getFunction();
    partClassName = tEval.getPartitionClass();
    partMemSize = tEval.getPartitionMemSize();
   
    serDe = (SerDe) wIn.getDeserializer();
    try
    {
      OI = (StructObjectInspector) serDe.getObjectInspector();
      w  = wIn.createRow();
    }
    catch(Exception se)
    {
      throw new WindowingException(se);
    }
   
    stdOI = (StructObjectInspector) ObjectInspectorUtils.getStandardObjectInspector(OI);
   
    partColumns = new ArrayList<String>();
    objFields = new ArrayList<StructField>();
    stdObjFields = new ArrayList<StructField>();
    ArrayList<ColumnDef> cols = tabDef.getWindow().getPartDef().getColumns();
    for(ColumnDef colDef : cols)
    {
      String colName = colDef.getAlias();
      StructField f = OI.getStructFieldRef(colName);
      StructField stdF = stdOI.getStructFieldRef(colName);
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    ASTNode wExpr = spec.getWhereExpr();
   
    if ( wExpr == null ) return;
   
    WhereDef whDef = new WhereDef();
    whDef.setExpression(wExpr);
   
    QueryInputDef iDef = qDef.getInput();
    InputInfo iInfo = tInfo.getInputInfo(iDef);
   
    ExprNodeDesc exprNode = TranslateUtils.buildExprNode(wExpr, iInfo.getTypeCheckCtx());
    ExprNodeEvaluator exprEval = WindowingExprNodeEvaluatorFactory.get(tInfo, exprNode);
    ObjectInspector oi = TranslateUtils.initExprNodeEvaluator(qDef, exprNode, exprEval, iInfo);
   
    try
    {
      ObjectInspectorConverters.getConverter(oi, PrimitiveObjectInspectorFactory.javaBooleanObjectInspector);
    }
    catch(Throwable t)
    {
      throw new WindowingException("Where Expr must be convertible to a boolean value", t);
    }
   
    whDef.setExprNode(exprNode);
    whDef.setExprEvaluator(exprEval);
    whDef.setOI(oi);
   
    qDef.setWhere(whDef);
  }
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    if ( RANKING_FUNCS.contains(wFnSpec.getName()))
    {
      setupRankingArgs(qDef, windowTableFnDef, wFnDef, wFnSpec);
    }
   
    WindowDef wDef = translateWindowSpec(qDef, iInfo, wFnSpec);
    wFnDef.setWindow(wDef);
    validateWindowDefForWFn(windowTableFnDef, wFnDef);
   
    setupEvaluator(wFnDef);
   
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  }
 
  public static void validateWindowDefForWFn(TableFuncDef tFnDef, WindowFunctionDef wFnDef)
    throws WindowingException
  {
    WindowDef tWindow = tFnDef.getWindow();
    WindowDef fWindow = wFnDef.getWindow();
   
    PartitionDef tPart = tWindow == null ? null : tWindow.getPartDef();
    PartitionDef fPart = fWindow == null ? null : fWindow.getPartDef();
   
    if ( !TranslateUtils.isCompatible(tPart, fPart))
    {
      throw new WindowingException(
          sprintf("Window Function '%s' has an incompatible partition clause", wFnDef.getSpec()));
    }
   
    OrderDef tOrder = tWindow == null ? null : tWindow.getOrderDef();
    OrderDef fOrder = fWindow == null ? null : fWindow.getOrderDef();
    if ( !TranslateUtils.isCompatible(tOrder, fOrder))
    {
      throw new WindowingException(
          sprintf("Window Function '%s' has an incompatible order clause", wFnDef.getSpec()));
    }
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        " into path='/tmp/wout2'" +
        " serde 'org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe'" +
        " with serdeproperties('field.delim'=',')" +
        " format 'org.apache.hadoop.mapred.TextOutputFormat'");
   
    RangeBoundaryDef rBdef = (RangeBoundaryDef) qDef.getSelectList().getWindowFuncs().get(0).getWindow().getWindow().getStart();
    assert rBdef.getAmt() == 2;
    rBdef = (RangeBoundaryDef) qDef.getSelectList().getWindowFuncs().get(0).getWindow().getWindow().getEnd();
    assert rBdef.getAmt() == 2;
   
  }
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  public static WindowFunctionDef translate(QueryDef qDef, TableFuncDef windowTableFnDef, WindowFunctionSpec wFnSpec) throws WindowingException
  {
    QueryTranslationInfo tInfo = qDef.getTranslationInfo();
    InputInfo iInfo = tInfo.getInputInfo(windowTableFnDef.getInput());

    WindowFunctionDef wFnDef = new WindowFunctionDef();
    wFnDef.setSpec(wFnSpec);
   
    /*
     * translate args
     */
    ArrayList<ASTNode> args = wFnSpec.getArgs();
    if ( args != null)
    {
      for(ASTNode expr : args)
      {
        ArgDef argDef = translateWindowFunctionArg(qDef, windowTableFnDef, iInfo,  expr);
        wFnDef.addArg(argDef);
      }
    }
   
    if ( RANKING_FUNCS.contains(wFnSpec.getName()))
    {
      setupRankingArgs(qDef, windowTableFnDef, wFnDef, wFnSpec);
    }
   
    WindowDef wDef = translateWindowSpec(qDef, iInfo, wFnSpec);
    wFnDef.setWindow(wDef);
    validateWindowDefForWFn(windowTableFnDef, wFnDef);
   
    setupEvaluator(wFnDef);
   
    return wFnDef;
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    HiveQueryDef def = new HiveQueryDef();
    HiveQueryExecutor hiveQryExec = qDef.getTranslationInfo().getHiveQueryExecutor();
    Hive hive = qDef.getTranslationInfo().getHive();
   
    String tableName = hiveQryExec.createTableAsQuery(spec.getHiveQuery());
    HiveTableSpec tSpec = new HiveTableSpec();
    tSpec.setDbName(hive.getCurrentDatabase());
    tSpec.setTableName(tableName);
    tSpec.setPartition(spec.getPartition());
    tSpec.setOrder(spec.getOrder());
    def = (HiveQueryDef) InputTranslation.translate(qDef, tSpec, (HiveTableDef) def);
    return def;
  }
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  }
 
  public void execute(QueryDef qDef, WindowingShell wShell) throws WindowingException
  {
    QueryTranslationInfo tInfo = qDef.getTranslationInfo();
    HiveTableSpec hvTblSpec = qDef.getInput().getHiveTableSpec();
   
    WindowingInput wIn = IOUtils.createTableWindowingInput(hvTblSpec.getDbName(), hvTblSpec.getTableName(), tInfo.getHiveCfg());
    //Partition p = IOUtils.createPartition(partClassName, partMemSize, wIn);
   
    PartitionsIterator partsItr = new PartitionsIterator(wIn, qDef);
   
    while(partsItr.hasNext())
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  }
 
  public OrderColumnDef(ColumnDef cDef)
  {
    super(cDef);
    this.spec = new OrderColumnSpec(spec);
  }
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    this.spec = spec;
  }
 
  public OrderDef(PartitionDef pDef)
  {
    this.spec = new OrderSpec(pDef.getSpec());
    for(ColumnDef cDef : pDef.getColumns())
    {
      addColumn(new OrderColumnDef(cDef));
    }
  }
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Related Classes of com.sap.hadoop.windowing.query2.definition.OrderDef

  • com.sap.hadoop.windowing.functions2.table.npath.NPath$NPathResolver
  • com.sap.hadoop.windowing.functions2.table.WindowingTableFunction
  • com.sap.hadoop.windowing.functions2.table.WindowingTableFunction$WindowingTableFunctionResolver
  • com.sap.hadoop.windowing.functions2.TableFunctionEvaluator
  • com.sap.hadoop.windowing.parser.QSpecBuilder2
  • com.sap.hadoop.windowing.query2.definition.ArgDef
  • com.sap.hadoop.windowing.query2.definition.ColumnDef
  • com.sap.hadoop.windowing.query2.definition.HiveTableDef
  • com.sap.hadoop.windowing.query2.definition.OrderColumnDef
  • com.sap.hadoop.windowing.query2.definition.OrderDef
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