Examples of ConstantExpression

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

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

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

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

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    ConstantExpression lt, rt;
    Mod op = new Mod(new OperatorKey("", r.nextLong()));

    @Before
    public void setUp() throws Exception {
        lt = new ConstantExpression(new OperatorKey("",r.nextLong()));
        rt = new ConstantExpression(new OperatorKey("",r.nextLong()));
    }
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Examples of org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.ConstantExpression

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    ConstantExpression lt, rt;
    Multiply op = new Multiply(new OperatorKey("", r.nextLong()));

    @Before
    public void setUp() throws Exception {
        lt = new ConstantExpression(new OperatorKey("",r.nextLong()));
        rt = new ConstantExpression(new OperatorKey("",r.nextLong()));
    }
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Examples of org.apache.pig.experimental.logical.expression.ConstantExpression

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          // D = filter
          LogicalExpressionPlan filterPlan = new LogicalExpressionPlan();
          ProjectExpression fx = new ProjectExpression(filterPlan, DataType.INTEGER, 0, 0);
          fx.neverUseForRealSetUid(1);
          ConstantExpression fc0 = new ConstantExpression(filterPlan, DataType.INTEGER, new Integer(0));
          EqualExpression eq1 = new EqualExpression(filterPlan, fx, fc0);
          ProjectExpression fanotherx = new ProjectExpression(filterPlan, DataType.INTEGER, 0, 0);
          fanotherx.neverUseForRealSetUid(1);
          ProjectExpression fa = new ProjectExpression(filterPlan, DataType.INTEGER, 0, 2);
          fa.neverUseForRealSetUid(3);
          EqualExpression eq2 = new EqualExpression(filterPlan, fanotherx, fa);
          AndExpression and1 = new AndExpression(filterPlan, eq1, eq2);
          ProjectExpression fb = new ProjectExpression(filterPlan, DataType.INTEGER, 0, 3);
          fb.neverUseForRealSetUid(4);
          ConstantExpression fc1 = new ConstantExpression(filterPlan, DataType.INTEGER, new Integer(1));
          EqualExpression eq3 = new EqualExpression(filterPlan, fb, fc1);
          AndExpression and2 = new AndExpression(filterPlan, and1, eq3);
          ProjectExpression fanotherb = new ProjectExpression(filterPlan, DataType.INTEGER, 0, 3);
          fanotherb.neverUseForRealSetUid(4);
          ProjectExpression fy = new ProjectExpression(filterPlan, DataType.INTEGER, 0, 1);
          fy.neverUseForRealSetUid(2);
          EqualExpression eq4 = new EqualExpression(filterPlan, fy, fanotherb);
          new AndExpression(filterPlan, and2, eq4);
       
          LOFilter D = new LOFilter(lp, filterPlan);
          D.neverUseForRealSetSchema(cschema);
          // Connect D to B, since the transform has happened.
          lp.add(D);
          lp.connect(C, D);
        }
       
        LogicalPlanOptimizer optimizer = new LogicalPlanOptimizer(lp, 500);
        optimizer.optimize();
       
        LogicalPlan expected = new LogicalPlan();
        {
            // A = load
          LogicalSchema aschema = new LogicalSchema();
          aschema.addField(new LogicalSchema.LogicalFieldSchema(
              "x", null, DataType.INTEGER));
          aschema.addField(new LogicalSchema.LogicalFieldSchema(
              "y", null, DataType.INTEGER));
          aschema.getField(0).uid = 1;
          aschema.getField(1).uid = 2;
          LOLoad A = new LOLoad(new FileSpec("bla", new FuncSpec("PigStorage", "\t")), aschema, expected);
          expected.add(A);
         
          // DA = filter
          LogicalExpressionPlan DAfilterPlan = new LogicalExpressionPlan();
          ProjectExpression fx = new ProjectExpression(DAfilterPlan, DataType.INTEGER, 0, 0);
          fx.neverUseForRealSetUid(1);
          ConstantExpression fc0 = new ConstantExpression(DAfilterPlan, DataType.INTEGER, new Integer(0));
          new EqualExpression(DAfilterPlan, fx, fc0);
         
          LOFilter DA = new LOFilter(expected, DAfilterPlan);
          DA.neverUseForRealSetSchema(aschema);
          expected.add(DA);
          expected.connect(A, DA);
         
          // B = load
          LogicalSchema bschema = new LogicalSchema();
          bschema.addField(new LogicalSchema.LogicalFieldSchema(
              "a", null, DataType.INTEGER));
          bschema.addField(new LogicalSchema.LogicalFieldSchema(
              "b", null, DataType.INTEGER));
          bschema.getField(0).uid = 3;
          bschema.getField(1).uid = 4;
          LOLoad B = new LOLoad(null, bschema, expected);
          expected.add(B);
         
          // DB = filter
          LogicalExpressionPlan DBfilterPlan = new LogicalExpressionPlan();
          ProjectExpression fb = new ProjectExpression(DBfilterPlan, DataType.INTEGER, 0, 1);
          fb.neverUseForRealSetUid(4);
          ConstantExpression fc1 = new ConstantExpression(DBfilterPlan, DataType.INTEGER, new Integer(1));
          new EqualExpression(DBfilterPlan, fb, fc1);
         
          LOFilter DB = new LOFilter(expected, DBfilterPlan);
          DB.neverUseForRealSetSchema(bschema);
          expected.add(DB);
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Examples of org.apache.pig.newplan.logical.expression.ConstantExpression

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          // D = filter
          LogicalExpressionPlan filterPlan = new LogicalExpressionPlan();
          LOFilter D = new LOFilter(lp, filterPlan);
          ProjectExpression fx = new ProjectExpression(filterPlan, 0, 0, D);
          ConstantExpression fc0 = new ConstantExpression(filterPlan, new Integer(0), new LogicalFieldSchema(null, null, DataType.BYTEARRAY));
          EqualExpression eq1 = new EqualExpression(filterPlan, fx, fc0);
          ProjectExpression fanotherx = new ProjectExpression(filterPlan, 0, 0, D);
          ProjectExpression fa = new ProjectExpression(filterPlan, 0, 2, D);
          EqualExpression eq2 = new EqualExpression(filterPlan, fanotherx, fa);
          AndExpression and1 = new AndExpression(filterPlan, eq1, eq2);
          ProjectExpression fb = new ProjectExpression(filterPlan, 0, 3, D);
          ConstantExpression fc1 = new ConstantExpression(filterPlan, new Integer(1),new LogicalFieldSchema(null, null, DataType.BYTEARRAY));
          EqualExpression eq3 = new EqualExpression(filterPlan, fb, fc1);
          AndExpression and2 = new AndExpression(filterPlan, and1, eq3);
          ProjectExpression fanotherb = new ProjectExpression(filterPlan, 0, 3, D);
          ProjectExpression fy = new ProjectExpression(filterPlan, 0, 1, D);
          EqualExpression eq4 = new EqualExpression(filterPlan, fy, fanotherb);
          new AndExpression(filterPlan, and2, eq4);
         
          D.setAlias("D");
          // Connect D to B, since the transform has happened.
          lp.add(D);
          lp.connect(C, D);
        }
       
        System.out.println(lp);
        LogicalPlanOptimizer optimizer = new LogicalPlanOptimizer(lp, 500, null);
        optimizer.optimize();
       
        LogicalPlan expected = new LogicalPlan();
        {
            // A = load
          LogicalSchema aschema = new LogicalSchema();
          aschema.addField(new LogicalSchema.LogicalFieldSchema(
              "x", null, DataType.BYTEARRAY));
          aschema.addField(new LogicalSchema.LogicalFieldSchema(
              "y", null, DataType.BYTEARRAY));
          LOLoad A = new LOLoad(new FileSpec("bla", new FuncSpec("PigStorage", "\t")), aschema, expected, null);
          expected.add(A);
         
          // DA = filter
          LogicalExpressionPlan DAfilterPlan = new LogicalExpressionPlan();
          LOFilter DA = new LOFilter(expected, DAfilterPlan);
          ProjectExpression fx = new ProjectExpression(DAfilterPlan, 0, 0, DA);
          fx.neverUseForRealSetFieldSchema(new LogicalFieldSchema(null, null, DataType.BYTEARRAY));
          ConstantExpression fc0 = new ConstantExpression(DAfilterPlan, new Integer(0), new LogicalFieldSchema(null, null, DataType.BYTEARRAY));
          new EqualExpression(DAfilterPlan, fx, fc0);
         
          DA.neverUseForRealSetSchema(aschema);
          expected.add(DA);
          expected.connect(A, DA);
         
          // B = load
          LogicalSchema bschema = new LogicalSchema();
          bschema.addField(new LogicalSchema.LogicalFieldSchema(
              "a", null, DataType.BYTEARRAY));
          bschema.addField(new LogicalSchema.LogicalFieldSchema(
              "b", null, DataType.BYTEARRAY));
          LOLoad B = new LOLoad(new FileSpec("morebla", new FuncSpec("PigStorage", "\t")), bschema, expected, null);
          expected.add(B);
         
          // DB = filter
          LogicalExpressionPlan DBfilterPlan = new LogicalExpressionPlan();
            LOFilter DB = new LOFilter(expected, DBfilterPlan);
          ProjectExpression fb = new ProjectExpression(DBfilterPlan, 0, 1, DB);
          fb.neverUseForRealSetFieldSchema(new LogicalFieldSchema(null, null, DataType.BYTEARRAY));
          ConstantExpression fc1 = new ConstantExpression(DBfilterPlan, new Integer(1), new LogicalFieldSchema(null, null, DataType.BYTEARRAY));
          new EqualExpression(DBfilterPlan, fb, fc1);

          DB.neverUseForRealSetSchema(bschema);
          expected.add(DB);
          expected.connect(B, DB);
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Examples of org.apache.pig.newplan.logical.expression.ConstantExpression

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  }

  public static Expression getExpression(LogicalExpression op) throws FrontendException
   {
    if(op instanceof ConstantExpression) {
      ConstantExpression constExpr =(ConstantExpression)op ;
      return new Expression.Const( constExpr.getValue() );
    } else if (op instanceof ProjectExpression) {
      ProjectExpression projExpr = (ProjectExpression)op;
      String fieldName = projExpr.getFieldSchema().alias;
            return new Expression.Column(fieldName);
        } else {
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Examples of org.apache.pig.newplan.logical.expression.ConstantExpression

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        for (Operator suc : sucs) {
          // position is remembered in order to maintain the order of the successors
          Pair<Integer, Integer> pos = currentPlan.disconnect(op, suc);
          LogicalExpressionPlan filterPlan = new LogicalExpressionPlan();
          LogicalSchema.LogicalFieldSchema fs = new LogicalSchema.LogicalFieldSchema(null, null, DataType.BOOLEAN);
          new ConstantExpression(filterPlan, Boolean.valueOf(true), fs);
          LOSplitOutput splitOutput = new LOSplitOutput((LogicalPlan) currentPlan, filterPlan);
          splitOutput.setAlias(splitOp.getAlias());
          currentPlan.add(splitOutput);
          currentPlan.connect(splitOp, splitOutput);
          currentPlan.connect(splitOutput, pos.first, suc, pos.second);
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Examples of org.apache.pig.newplan.logical.expression.ConstantExpression

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        exprOpsMap.put(project, pe);      
        translateConnection(project, pe);                      
    }
   
    public void visit(LOConst con) throws VisitorException{
        ConstantExpression ce = null;
        try {
            ce = new ConstantExpression(exprPlan, con.getValue(), Util.translateFieldSchema(con.getFieldSchema()));
        } catch (FrontendException e) {
            throw new VisitorException(e);
        }
       
        exprPlan.add(ce);
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