Package org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators

Examples of org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.ConstantExpression

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  }


  @Test
    public void testDataByteArrayNe() throws Exception {
        ConstantExpression lt = GenPhyOp.exprConst();
        lt.setValue(new DataByteArray("a"));
        ConstantExpression rt = GenPhyOp.exprConst();
        rt.setValue(new DataByteArray("b"));
        EqualToExpr g = GenPhyOp.compEqualToExpr();
        g.setLhs(lt);
        g.setRhs(rt);
        g.setOperandType(DataType.BYTEARRAY);
        Result r = g.getNext(new Boolean(true));
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    }

   
    @Test
    public void testDataByteArrayEq() throws Exception {
        ConstantExpression lt = GenPhyOp.exprConst();
        lt.setValue(new DataByteArray("b"));
        ConstantExpression rt = GenPhyOp.exprConst();
        rt.setValue(new DataByteArray("b"));
        EqualToExpr g = GenPhyOp.compEqualToExpr();
        g.setLhs(lt);
        g.setRhs(rt);
        g.setOperandType(DataType.BYTEARRAY);
        Result r = g.getNext(new Boolean(true));
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    @Test
    public void testTupleEq() throws ExecException{
        Tuple tuple_1=TupleFactory.getInstance().newTuple("item_1");
        Tuple tuple_2=TupleFactory.getInstance().newTuple("item_1");
        ConstantExpression lt = GenPhyOp.exprConst();
        lt.setValue(tuple_1);
        ConstantExpression rt = GenPhyOp.exprConst();
        rt.setValue(tuple_2);
        EqualToExpr g = GenPhyOp.compEqualToExpr();
        g.setLhs(lt);
        g.setRhs(rt);
        g.setOperandType(DataType.TUPLE);
        Result r = g.getNext(new Boolean(true));
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    @Test
    public void testTupleNe() throws ExecException{
        Tuple tuple_1=TupleFactory.getInstance().newTuple("item_1");
        Tuple tuple_2=TupleFactory.getInstance().newTuple("item_2");
        ConstantExpression lt = GenPhyOp.exprConst();
        lt.setValue(tuple_1);
        ConstantExpression rt = GenPhyOp.exprConst();
        rt.setValue(tuple_2);
        EqualToExpr g = GenPhyOp.compEqualToExpr();
        g.setLhs(lt);
        g.setRhs(rt);
        g.setOperandType(DataType.TUPLE);
        Result r = g.getNext(new Boolean(true));
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        Map map_1=new HashMap();
        map_1.put("key_1", "value_1");
        Map map_2=new HashMap();
        map_2.put("key_1", "value_1");
       
        ConstantExpression lt = GenPhyOp.exprConst();
        lt.setValue(map_1);
        ConstantExpression rt = GenPhyOp.exprConst();
        rt.setValue(map_2);
        EqualToExpr g = GenPhyOp.compEqualToExpr();
        g.setLhs(lt);
        g.setRhs(rt);
        g.setOperandType(DataType.MAP);
        Result r = g.getNext(new Boolean(true));
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        map_1.put("key_1", "value_1");
        Map map_2=new HashMap();
        map_2.put("key_1", "value_2");
       
        Tuple tuple_2=TupleFactory.getInstance().newTuple("item_2");
        ConstantExpression lt = GenPhyOp.exprConst();
        lt.setValue(map_1);
        ConstantExpression rt = GenPhyOp.exprConst();
        rt.setValue(map_2);
        EqualToExpr g = GenPhyOp.compEqualToExpr();
        g.setLhs(lt);
        g.setRhs(rt);
        g.setOperandType(DataType.MAP);
        Result r = g.getNext(new Boolean(true));
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  }
   
  public <U> void checkNullValues( byte operandType, U value ) throws Exception {
   
        ConstantExpression lt = GenPhyOp.exprConst();
        ConstantExpression rt = GenPhyOp.exprConst();
        EqualToExpr g = GenPhyOp.compEqualToExpr();

        // test with null in lhs
        g.setOperandType(operandType);
        lt.setValue(null);
        rt.setValue( value );
        g.setLhs(lt);
        g.setRhs(rt);
      
        Result r = g.getNext(new Boolean(true));
        assertEquals(POStatus.STATUS_NULL, r.returnStatus);
        assertEquals(null, (Boolean)r.result);
       
        // test with null in rhs
        g.setOperandType(operandType);
        lt.setValue( value );
        rt.setValue(null);
        g.setLhs(lt);
        g.setRhs(rt);
      
        r = g.getNext(new Boolean(true));
        assertEquals(POStatus.STATUS_NULL, r.returnStatus);
        assertEquals(null, (Boolean)r.result);
  
       
        // test with null in lhs and rhs
        g.setOperandType(operandType);
        lt.setValue(null);
        rt.setValue(null);
        g.setLhs(lt);
        g.setRhs(rt);
      
        r = g.getNext(new Boolean(true));
        assertEquals(POStatus.STATUS_NULL, r.returnStatus);
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            currentPlan.connect(poGlobal, poPackage);
            List<Boolean> flattenLst = Arrays.asList(true, true);
           
            for (Operator op : inputs) {
                PhysicalPlan fep1 = new PhysicalPlan();
                ConstantExpression ce1 = new ConstantExpression(new OperatorKey(scope, nodeGen.getNextNodeId(scope)),cross.getRequestedParallelisam());
                ce1.setValue(inputs.size());
                ce1.setResultType(DataType.INTEGER);
                fep1.add(ce1);
               
                ConstantExpression ce2 = new ConstantExpression(new OperatorKey(scope, nodeGen.getNextNodeId(scope)),cross.getRequestedParallelisam());
                ce2.setValue(count);
                ce2.setResultType(DataType.INTEGER);
                fep1.add(ce2);
                /*Tuple ce1val = TupleFactory.getInstance().newTuple(2);
                ce1val.set(0,inputs.size());
                ce1val.set(1,count);
                ce1.setValue(ce1val);
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                int errCode = 2071;
                String msg = "Problem with setting up local rearrange's plans.";
                throw new ExecException(msg, errCode, PigException.BUG, pe);
            }
            LRs[i] = lr;
            ConstantExpression ce = new ConstantExpression(genKey(old));
            ce.setResultType((i == fragment) ? DataType.TUPLE : DataType.BAG);
            constExps[i] = ce;
            PhysicalPlan pp = new PhysicalPlan();
            pp.add(ce);
            fePlans.add(pp);
            flatList.add(true);
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    @Override
    public void visit(org.apache.pig.newplan.logical.expression.ConstantExpression op) throws FrontendException {
       
//        System.err.println("Entering Constant");
        ConstantExpression ce = new ConstantExpression(new OperatorKey(DEFAULT_SCOPE,
                nodeGen.getNextNodeId(DEFAULT_SCOPE)));
        // We dont have aliases in ExpressionOperators
        // ce.setAlias(op.getAlias());
        ce.setValue(op.getValue());
        ce.setResultType(op.getType());
        //this operator doesn't have any predecessors
        currentPlan.add(ce);
        logToPhyMap.put(op, ce);
//        System.err.println("Exiting Constant");
    }
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