Package org.apache.pig.newplan.logical.relational

Examples of org.apache.pig.newplan.logical.relational.LOLoad

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            LogicalPlan lp = builder.parse(query);
            assertTrue(lp.size()>0);
            Operator op = lp.getSources().get(0);
           
            assertTrue(op instanceof LOLoad);
            LOLoad load = (LOLoad)op;
   
            String p = load.getFileSpec().getFileName();
            System.err.println("DEBUG: p:" + p + " expected:" + expected +", exectype:" + pc.getExecType());
            if(noConversionExpected) {
                assertEquals(expected, p);
            } else  {
                String protocol = pc.getExecType() == ExecType.MAPREDUCE ? "hdfs" : "file";
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        LogicalPlan plan = new LogicalPlan() ;
        FileSpec filespec1 =
            new FileSpec(inputFile, new FuncSpec("org.apache.pig.builtin.PigStorage")) ;
        FileSpec filespec2 =
            new FileSpec(outputFile, new FuncSpec("org.apache.pig.builtin.PigStorage"));
        LOLoad load = newLOLoad( filespec1, null, plan,
                ConfigurationUtil.toConfiguration(dfs.getConfiguration())) ;
        LOStore store = new LOStore(plan, filespec2, (StoreFuncInterface)PigContext.instantiateFuncFromSpec(filespec2.getFuncSpec()), null) ;

        plan.add(load) ;
        plan.add(store) ;
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    }

    @Test
    public void testLogicalPlanVisitor() throws FrontendException {
        LogicalPlan lp = new LogicalPlan();
        LOLoad load = newLOLoad(null, null, lp, conf);
        /*
         * lp.add((LogicalRelationalOperator)null, load,
         * (LogicalRelationalOperator)null);
         */
        lp.add(load);
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        LogicalPlan lp = new LogicalPlan();
        {
            LogicalSchema aschema = new LogicalSchema();
            aschema.addField(new LogicalSchema.LogicalFieldSchema(
                    "x", null, DataType.INTEGER));
            LOLoad A = newLOLoad(new FileSpec("/abc",
                    new FuncSpec(DummyLoad.class.getName(), new String[] { "x", "y" })), aschema,
                    lp, conf);
            lp.add(A);

            // B = load
            LogicalSchema bschema = new LogicalSchema();
            bschema.addField(new LogicalSchema.LogicalFieldSchema(
                    "y", null, DataType.INTEGER));
            LOLoad B = newLOLoad(new FileSpec("/def",
                    new FuncSpec("PigStorage", "\t")), bschema, lp, conf);
            lp.add(B);

            // C = join
            LogicalSchema cschema = new LogicalSchema();
            cschema.addField(new LogicalSchema.LogicalFieldSchema(
                    "x", null, DataType.INTEGER));
            cschema.addField(new LogicalSchema.LogicalFieldSchema(
                    "y", null, DataType.INTEGER));
            LogicalExpressionPlan aprojplan = new LogicalExpressionPlan();
            new ProjectExpression(aprojplan, 0, 0, null);
            LogicalExpressionPlan bprojplan = new LogicalExpressionPlan();
            new ProjectExpression(bprojplan, 1, 0, null);
            MultiMap<Integer, LogicalExpressionPlan> mm =
                    new MultiMap<Integer, LogicalExpressionPlan>();
            mm.put(0, aprojplan);
            mm.put(1, bprojplan);
            LOJoin C = new LOJoin(lp, mm, JOINTYPE.HASH, new boolean[] { true, true });
            C.neverUseForRealSetSchema(cschema);
            lp.add(C);
            lp.connect(A, C);
            lp.connect(B, C);

            // D = filter
            LogicalExpressionPlan filterPlan = new LogicalExpressionPlan();
            ProjectExpression fy = new ProjectExpression(filterPlan, 0, 1, null);
            ConstantExpression fc = new ConstantExpression(filterPlan, new Integer(0));
            new EqualExpression(filterPlan, fy, fc);
            LOFilter D = new LOFilter(lp, filterPlan);
            D.neverUseForRealSetSchema(cschema);
            lp.add(D);
            lp.connect(C, D);
        }

        // Build a second similar plan to test equality
        // A = load
        LogicalPlan lp1 = new LogicalPlan();
        {
            LogicalSchema aschema = new LogicalSchema();
            aschema.addField(new LogicalSchema.LogicalFieldSchema(
                    "x", null, DataType.INTEGER));
            LOLoad A = newLOLoad(new FileSpec("/abc",
                    new FuncSpec(DummyLoad.class.getName(), new String[] { "x", "y" })), aschema,
                    lp1, conf);
            lp1.add(A);

            // B = load
            LogicalSchema bschema = new LogicalSchema();
            bschema.addField(new LogicalSchema.LogicalFieldSchema(
                    "y", null, DataType.INTEGER));
            LOLoad B = newLOLoad(new FileSpec("/def",
                    new FuncSpec("PigStorage", "\t")), bschema, lp1, conf);
            lp1.add(B);

            // C = join
            LogicalSchema cschema = new LogicalSchema();
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        LogicalPlan lp = new LogicalPlan();

        LogicalSchema aschema1 = new LogicalSchema();
        aschema1.addField(new LogicalSchema.LogicalFieldSchema(
                "x", null, DataType.INTEGER));
        LOLoad load1 = newLOLoad(new FileSpec("/abc",
                new FuncSpec(DummyLoad.class.getName(), new String[] { "x", "y" })), aschema1, lp,
                conf);
        lp.add(load1);

        LOLoad load2 = newLOLoad(new FileSpec("/abc",
                new FuncSpec(DummyLoad.class.getName(), new String[] { "x", "z" })), aschema1, lp,
                conf);
        lp.add(load2);

        assertFalse(load1.isEqual(load2));
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        LogicalPlan lp = new LogicalPlan();

        LogicalSchema aschema1 = new LogicalSchema();
        aschema1.addField(new LogicalSchema.LogicalFieldSchema(
                "x", null, DataType.INTEGER));
        LOLoad load1 = newLOLoad(new FileSpec("/abc",
                new FuncSpec(DummyLoad.class.getName(), new String[] { "x", "y" })), aschema1, lp,
                conf);
        lp.add(load1);

        LOLoad load3 = newLOLoad(new FileSpec("/abc",
                new FuncSpec(DummyLoad.class.getName(), "x")), aschema1, lp, conf);
        lp.add(load3);

        assertFalse(load1.isEqual(load3));
    }
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        LogicalPlan lp = new LogicalPlan();

        LogicalSchema aschema1 = new LogicalSchema();
        aschema1.addField(new LogicalSchema.LogicalFieldSchema(
                "x", null, DataType.INTEGER));
        LOLoad load1 = newLOLoad(new FileSpec("/abc",
                new FuncSpec(DummyLoad.class.getName(), new String[] { "x", "y" })), aschema1, lp,
                conf);
        lp.add(load1);

        // Different function names in FuncSpec
        LOLoad load4 = newLOLoad(new FileSpec("/abc",
                new FuncSpec(DummyLoad.class.getName(), new String[] { "x", "z" })), aschema1, lp,
                conf);
        lp.add(load4);

        assertFalse(load1.isEqual(load4));
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    public void testLoadEqualityDifferentFileName() throws FrontendException {
        LogicalPlan lp = new LogicalPlan();
        LogicalSchema aschema1 = new LogicalSchema();
        aschema1.addField(new LogicalSchema.LogicalFieldSchema(
                "x", null, DataType.INTEGER));
        LOLoad load1 = newLOLoad(new FileSpec("/abc",
                new FuncSpec(DummyLoad.class.getName(), new String[] { "x", "y" })), aschema1, lp,
                conf);
        lp.add(load1);

        // Different file name
        LOLoad load5 = newLOLoad(new FileSpec("/def",
                new FuncSpec(DummyLoad.class.getName(), new String[] { "x", "z" })), aschema1, lp,
                conf);
        lp.add(load5);

        assertFalse(load1.isEqual(load5));
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    public void testRelationalEqualityDifferentSchema() throws FrontendException {
        LogicalPlan lp = new LogicalPlan();
        LogicalSchema aschema1 = new LogicalSchema();
        aschema1.addField(new LogicalSchema.LogicalFieldSchema(
                "x", null, DataType.INTEGER));
        LOLoad load1 = newLOLoad(new FileSpec("/abc",
                new FuncSpec(DummyLoad.class.getName(), new String[] { "x", "y" })), aschema1, lp,
                conf);
        lp.add(load1);

        // Different schema
        LogicalSchema aschema2 = new LogicalSchema();
        aschema2.addField(new LogicalSchema.LogicalFieldSchema(
                "x", null, DataType.CHARARRAY));

        LOLoad load6 = newLOLoad(new FileSpec("/abc",
                new FuncSpec(DummyLoad.class.getName(), new String[] { "x", "z" })), aschema2, lp,
                conf);
        lp.add(load6);

        assertFalse(load1.isEqual(load6));
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    @Test
    public void testRelationalEqualityNullSchemas() throws FrontendException {
        LogicalPlan lp = new LogicalPlan();
        // Test that two loads with no schema are still equal
        LOLoad load7 = newLOLoad(new FileSpec("/abc",
                new FuncSpec(DummyLoad.class.getName(), new String[] { "x", "y" })), null, lp, conf);
        lp.add(load7);

        LOLoad load8 = newLOLoad(new FileSpec("/abc",
                new FuncSpec(DummyLoad.class.getName(), new String[] { "x", "y" })), null, lp, conf);
        lp.add(load8);

        assertTrue(load7.isEqual(load8));
    }
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Related Classes of org.apache.pig.newplan.logical.relational.LOLoad

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  • org.apache.pig.impl.logicalLayer.schema.Schema
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  • org.apache.pig.newplan.logical.rules.LoadTypeCastInserter
  • org.apache.pig.newplan.logical.rules.PartitionFilterOptimizer
  • org.apache.pig.newplan.logical.rules.PredicatePushdownOptimizer
  • org.apache.pig.newplan.logical.rules.TypeCastInserter
  • org.apache.pig.parser.LogicalPlanBuilder
  • org.apache.pig.ResourceSchema
  • org.apache.pig.test.TestBlackAndWhitelistValidator
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