Package org.apache.hadoop.hive.ql.plan.PTFDesc

Examples of org.apache.hadoop.hive.ql.plan.PTFDesc.PTFExpressionDef

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    ObjectInspector[] keyOIs = new ObjectInspector[numExprs];
    ObjectInspector[] currentKeyOIs = new ObjectInspector[numExprs];

    for(int i=0; i<numExprs; i++)
    {
      PTFExpressionDef exprDef = exprs.get(i);
      /*
       * Why cannot we just use the ExprNodeEvaluator on the column?
       * - because on the reduce-side it is initialized based on the rowOI of the HiveTable
       *   and not the OI of the ExtractOp ( the parent of this Operator on the reduce-side)
       */
      keyFields[i] = ExprNodeEvaluatorFactory.get(exprDef.getExprNode());
      keyOIs[i] = keyFields[i].initialize(inputOI);
      currentKeyOIs[i] =
          ObjectInspectorUtils.getStandardObjectInspector(keyOIs[i],
              ObjectInspectorCopyOption.WRITABLE);
    }
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    /*
     * validate and setup patternStr
     */
    private void validateAndSetupPatternStr(MatchPath evaluator,
        ArrayList<PTFExpressionDef> args) throws SemanticException {
      PTFExpressionDef symboPatternArg = args.get(0);
      ObjectInspector symbolPatternArgOI = symboPatternArg.getOI();

      if ( !ObjectInspectorUtils.isConstantObjectInspector(symbolPatternArgOI) ||
          (symbolPatternArgOI.getCategory() != ObjectInspector.Category.PRIMITIVE) ||
          ((PrimitiveObjectInspector)symbolPatternArgOI).getPrimitiveCategory() !=
          PrimitiveObjectInspector.PrimitiveCategory.STRING )
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      }

      evaluator.symInfo = new SymbolsInfo(symbolArgsSz/2);
      for(int i=1; i <= symbolArgsSz; i += 2)
      {
        PTFExpressionDef symbolNameArg = args.get(i);
        ObjectInspector symbolNameArgOI = symbolNameArg.getOI();

        if ( !ObjectInspectorUtils.isConstantObjectInspector(symbolNameArgOI) ||
            (symbolNameArgOI.getCategory() != ObjectInspector.Category.PRIMITIVE) ||
            ((PrimitiveObjectInspector)symbolNameArgOI).getPrimitiveCategory() !=
            PrimitiveObjectInspector.PrimitiveCategory.STRING )
        {
          throwErrorWithSignature(
              String.format("Currently a Symbol Name(%s) must be a Constant String",
                  symbolNameArg.getExpressionTreeString()));
        }
        String symbolName = ((ConstantObjectInspector)symbolNameArgOI).
            getWritableConstantValue().toString();

        PTFExpressionDef symolExprArg = args.get(i+1);
        ObjectInspector symolExprArgOI = symolExprArg.getOI();
        if ( (symolExprArgOI.getCategory() != ObjectInspector.Category.PRIMITIVE) ||
              ((PrimitiveObjectInspector)symolExprArgOI).getPrimitiveCategory() !=
              PrimitiveObjectInspector.PrimitiveCategory.BOOLEAN )
        {
          throwErrorWithSignature(String.format("Currently a Symbol Expression(%s) " +
              "must be a boolean expression", symolExprArg.getExpressionTreeString()));
        }
        evaluator.symInfo.add(symbolName, symolExprArg);
      }
    }
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     * validate and setup resultExprStr
     */
    private void validateAndSetupResultExprStr(MatchPath evaluator,
        ArrayList<PTFExpressionDef> args,
        int argsNum) throws SemanticException {
      PTFExpressionDef resultExprArg = args.get(argsNum - 1);
      ObjectInspector resultExprArgOI = resultExprArg.getOI();

      if ( !ObjectInspectorUtils.isConstantObjectInspector(resultExprArgOI) ||
            (resultExprArgOI.getCategory() != ObjectInspector.Category.PRIMITIVE) ||
            ((PrimitiveObjectInspector)resultExprArgOI).getPrimitiveCategory() !=
            PrimitiveObjectInspector.PrimitiveCategory.STRING )
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    ExprNodeEvaluator[] keyFields = new ExprNodeEvaluator[numExprs];
    ObjectInspector[] keyOIs = new ObjectInspector[numExprs];
    ObjectInspector[] currentKeyOIs = new ObjectInspector[numExprs];

    for(int i=0; i<numExprs; i++) {
      PTFExpressionDef exprDef = exprs.get(i);
      /*
       * Why cannot we just use the ExprNodeEvaluator on the column?
       * - because on the reduce-side it is initialized based on the rowOI of the HiveTable
       *   and not the OI of the ExtractOp ( the parent of this Operator on the reduce-side)
       */
      keyFields[i] = ExprNodeEvaluatorFactory.get(exprDef.getExprNode());
      keyOIs[i] = keyFields[i].initialize(inputOI);
      currentKeyOIs[i] =
          ObjectInspectorUtils.getStandardObjectInspector(keyOIs[i],
              ObjectInspectorCopyOption.WRITABLE);
    }
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    ArrayList<ASTNode> args = spec.getArgs();
    if (args != null)
    {
      for (ASTNode expr : args)
      {
        PTFExpressionDef argDef = null;
        try {
          argDef = buildExpressionDef(inpDef.getOutputShape(), expr);
        } catch (HiveException he) {
          throw new SemanticException(he);
        }
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    ArrayList<ASTNode> args = spec.getArgs();
    if (args != null)
    {
      for (ASTNode expr : args)
      {
        PTFExpressionDef argDef = null;
        try {
          argDef = buildExpressionDef(inpShape, expr);
        } catch (HiveException he) {
          throw new SemanticException(he);
        }
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      return null;
    }

    PartitionDef pDef = new PartitionDef();
    for (PartitionExpression pExpr : spec.getExpressions()) {
      PTFExpressionDef expDef = translate(inpShape, pExpr);
      pDef.addExpression(expDef);
    }
    return pDef;
  }
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    return pDef;
  }

  private PTFExpressionDef translate(ShapeDetails inpShape,
      PartitionExpression pExpr) throws SemanticException {
    PTFExpressionDef expDef = null;
    try {
      expDef = buildExpressionDef(inpShape, pExpr.getExpression());
    } catch (HiveException he) {
      throw new SemanticException(he);
    }
    PTFTranslator.validateComparable(expDef.getOI(),
        String.format("Partition Expression %s is not a comparable expression", pExpr
            .getExpression().toStringTree()));
    return expDef;
  }
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      OrderExpression oExpr)
      throws SemanticException {
    OrderExpressionDef oexpDef = new OrderExpressionDef();
    oexpDef.setOrder(oExpr.getOrder());
    try {
      PTFExpressionDef expDef = buildExpressionDef(inpShape, oExpr.getExpression());
      oexpDef.setExpressionTreeString(expDef.getExpressionTreeString());
      oexpDef.setExprEvaluator(expDef.getExprEvaluator());
      oexpDef.setExprNode(expDef.getExprNode());
      oexpDef.setOI(expDef.getOI());
    } catch (HiveException he) {
      throw new SemanticException(he);
    }
    PTFTranslator.validateComparable(oexpDef.getOI(),
        String.format("Partition Expression %s is not a comparable expression",
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Related Classes of org.apache.hadoop.hive.ql.plan.PTFDesc.PTFExpressionDef

  • org.apache.hadoop.hive.ql.exec.PTFOperator
  • org.apache.hadoop.hive.ql.parse.PTFTranslator
  • org.apache.hadoop.hive.ql.udf.ptf.MatchPath$MatchPathResolver
  • org.apache.hadoop.hive.ql.udf.ptf.NPath$NPathResolver
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