Examples with SemanticDispatcher org.apache.hadoop.hive.ql.lib.SemanticDispatcher used on opensource projects

Example 1 with SemanticDispatcher

use of org.apache.hadoop.hive.ql.lib.SemanticDispatcher in project hive by apache.

the class TestAccumuloRangeGenerator method testRangeOverIntegerIndexedField.

@Test
public void testRangeOverIntegerIndexedField() throws Exception {
    // cars >= 2
    ExprNodeDesc column = new ExprNodeColumnDesc(TypeInfoFactory.intTypeInfo, "cars", null, false);
    ExprNodeDesc constant = new ExprNodeConstantDesc(TypeInfoFactory.intTypeInfo, 2);
    List<ExprNodeDesc> children = Lists.newArrayList();
    children.add(column);
    children.add(constant);
    ExprNodeDesc node = new ExprNodeGenericFuncDesc(TypeInfoFactory.intTypeInfo, new GenericUDFOPEqualOrGreaterThan(), children);
    assertNotNull(node);
    // cars <= 9
    ExprNodeDesc column2 = new ExprNodeColumnDesc(TypeInfoFactory.intTypeInfo, "cars", null, false);
    ExprNodeDesc constant2 = new ExprNodeConstantDesc(TypeInfoFactory.intTypeInfo, 9);
    List<ExprNodeDesc> children2 = Lists.newArrayList();
    children2.add(column2);
    children2.add(constant2);
    ExprNodeDesc node2 = new ExprNodeGenericFuncDesc(TypeInfoFactory.intTypeInfo, new GenericUDFOPEqualOrLessThan(), children2);
    assertNotNull(node2);
    // And UDF
    List<ExprNodeDesc> bothFilters = Lists.newArrayList();
    bothFilters.add(node);
    bothFilters.add(node2);
    ExprNodeGenericFuncDesc both = new ExprNodeGenericFuncDesc(TypeInfoFactory.stringTypeInfo, new GenericUDFOPAnd(), bothFilters);
    AccumuloRangeGenerator rangeGenerator = new AccumuloRangeGenerator(conf, handler, rowIdMapping, "rid");
    rangeGenerator.setIndexScanner(TestAccumuloDefaultIndexScanner.buildMockHandler(10));
    SemanticDispatcher disp = new DefaultRuleDispatcher(rangeGenerator, Collections.<SemanticRule, SemanticNodeProcessor>emptyMap(), null);
    SemanticGraphWalker ogw = new DefaultGraphWalker(disp);
    ArrayList<Node> topNodes = new ArrayList<Node>();
    topNodes.add(both);
    HashMap<Node, Object> nodeOutput = new HashMap<Node, Object>();
    try {
        ogw.startWalking(topNodes, nodeOutput);
    } catch (SemanticException ex) {
        throw new RuntimeException(ex);
    }
    // Filters are using an index which should match 3 rows
    Object result = nodeOutput.get(both);
    if (result instanceof List) {
        List results = (List) result;
        Assert.assertEquals(3, results.size());
        Assert.assertTrue("does not contain row1", results.contains(new Range("row1")));
        Assert.assertTrue("does not contain row2", results.contains(new Range("row2")));
        Assert.assertTrue("does not contain row3", results.contains(new Range("row3")));
    } else {
        Assert.fail("Results not a list");
    }
}

Example 2 with SemanticDispatcher

use of org.apache.hadoop.hive.ql.lib.SemanticDispatcher in project hive by apache.

the class TestAccumuloRangeGenerator method testDateRangeConjunction.

@Test
public void testDateRangeConjunction() throws Exception {
    // rowId >= '2014-01-01'
    ExprNodeDesc column = new ExprNodeColumnDesc(TypeInfoFactory.stringTypeInfo, "rid", null, false);
    ExprNodeDesc constant = new ExprNodeConstantDesc(TypeInfoFactory.dateTypeInfo, Date.valueOf("2014-01-01"));
    List<ExprNodeDesc> children = Lists.newArrayList();
    children.add(column);
    children.add(constant);
    ExprNodeDesc node = new ExprNodeGenericFuncDesc(TypeInfoFactory.stringTypeInfo, new GenericUDFOPEqualOrGreaterThan(), children);
    assertNotNull(node);
    // rowId <= '2014-07-01'
    ExprNodeDesc column2 = new ExprNodeColumnDesc(TypeInfoFactory.stringTypeInfo, "rid", null, false);
    ExprNodeDesc constant2 = new ExprNodeConstantDesc(TypeInfoFactory.dateTypeInfo, Date.valueOf("2014-07-01"));
    List<ExprNodeDesc> children2 = Lists.newArrayList();
    children2.add(column2);
    children2.add(constant2);
    ExprNodeDesc node2 = new ExprNodeGenericFuncDesc(TypeInfoFactory.stringTypeInfo, new GenericUDFOPLessThan(), children2);
    assertNotNull(node2);
    // And UDF
    List<ExprNodeDesc> bothFilters = Lists.newArrayList();
    bothFilters.add(node);
    bothFilters.add(node2);
    ExprNodeGenericFuncDesc both = new ExprNodeGenericFuncDesc(TypeInfoFactory.stringTypeInfo, new GenericUDFOPAnd(), bothFilters);
    // Should generate [2014-01-01, 2014-07-01)
    List<Range> expectedRanges = Arrays.asList(new Range(new Key("2014-01-01"), true, new Key("2014-07-01"), false));
    AccumuloRangeGenerator rangeGenerator = new AccumuloRangeGenerator(conf, handler, rowIdMapping, "rid");
    SemanticDispatcher disp = new DefaultRuleDispatcher(rangeGenerator, Collections.<SemanticRule, SemanticNodeProcessor>emptyMap(), null);
    SemanticGraphWalker ogw = new DefaultGraphWalker(disp);
    ArrayList<Node> topNodes = new ArrayList<Node>();
    topNodes.add(both);
    HashMap<Node, Object> nodeOutput = new HashMap<Node, Object>();
    try {
        ogw.startWalking(topNodes, nodeOutput);
    } catch (SemanticException ex) {
        throw new RuntimeException(ex);
    }
    Object result = nodeOutput.get(both);
    Assert.assertNotNull(result);
    Assert.assertTrue("Result from graph walk was not a List", result instanceof List);
    @SuppressWarnings("unchecked") List<Range> actualRanges = (List<Range>) result;
    Assert.assertEquals(expectedRanges, actualRanges);
}

Example 3 with SemanticDispatcher

use of org.apache.hadoop.hive.ql.lib.SemanticDispatcher in project hive by apache.

the class TestAccumuloRangeGenerator method testRangeConjunction.

@Test
public void testRangeConjunction() throws Exception {
    // rowId >= 'f'
    ExprNodeDesc column = new ExprNodeColumnDesc(TypeInfoFactory.stringTypeInfo, "rid", null, false);
    ExprNodeDesc constant = new ExprNodeConstantDesc(TypeInfoFactory.stringTypeInfo, "f");
    List<ExprNodeDesc> children = Lists.newArrayList();
    children.add(column);
    children.add(constant);
    ExprNodeDesc node = new ExprNodeGenericFuncDesc(TypeInfoFactory.stringTypeInfo, new GenericUDFOPEqualOrGreaterThan(), children);
    assertNotNull(node);
    // rowId <= 'm'
    ExprNodeDesc column2 = new ExprNodeColumnDesc(TypeInfoFactory.stringTypeInfo, "rid", null, false);
    ExprNodeDesc constant2 = new ExprNodeConstantDesc(TypeInfoFactory.stringTypeInfo, "m");
    List<ExprNodeDesc> children2 = Lists.newArrayList();
    children2.add(column2);
    children2.add(constant2);
    ExprNodeDesc node2 = new ExprNodeGenericFuncDesc(TypeInfoFactory.stringTypeInfo, new GenericUDFOPEqualOrLessThan(), children2);
    assertNotNull(node2);
    // And UDF
    List<ExprNodeDesc> bothFilters = Lists.newArrayList();
    bothFilters.add(node);
    bothFilters.add(node2);
    ExprNodeGenericFuncDesc both = new ExprNodeGenericFuncDesc(TypeInfoFactory.stringTypeInfo, new GenericUDFOPAnd(), bothFilters);
    // Should generate [f,m]
    List<Range> expectedRanges = Arrays.asList(new Range(new Key("f"), true, new Key("m\0"), false));
    AccumuloRangeGenerator rangeGenerator = new AccumuloRangeGenerator(conf, handler, rowIdMapping, "rid");
    SemanticDispatcher disp = new DefaultRuleDispatcher(rangeGenerator, Collections.<SemanticRule, SemanticNodeProcessor>emptyMap(), null);
    SemanticGraphWalker ogw = new DefaultGraphWalker(disp);
    ArrayList<Node> topNodes = new ArrayList<Node>();
    topNodes.add(both);
    HashMap<Node, Object> nodeOutput = new HashMap<Node, Object>();
    try {
        ogw.startWalking(topNodes, nodeOutput);
    } catch (SemanticException ex) {
        throw new RuntimeException(ex);
    }
    Object result = nodeOutput.get(both);
    Assert.assertNotNull(result);
    Assert.assertTrue("Result from graph walk was not a List", result instanceof List);
    @SuppressWarnings("unchecked") List<Range> actualRanges = (List<Range>) result;
    Assert.assertEquals(expectedRanges, actualRanges);
}

Example 4 with SemanticDispatcher

use of org.apache.hadoop.hive.ql.lib.SemanticDispatcher in project hive by apache.

the class TestAccumuloRangeGenerator method testRangeConjunctionWithDisjunction.

@Test
public void testRangeConjunctionWithDisjunction() throws Exception {
    // rowId >= 'h'
    ExprNodeDesc column = new ExprNodeColumnDesc(TypeInfoFactory.stringTypeInfo, "rid", null, false);
    ExprNodeDesc constant = new ExprNodeConstantDesc(TypeInfoFactory.stringTypeInfo, "h");
    List<ExprNodeDesc> children = Lists.newArrayList();
    children.add(column);
    children.add(constant);
    ExprNodeDesc node = new ExprNodeGenericFuncDesc(TypeInfoFactory.stringTypeInfo, new GenericUDFOPEqualOrGreaterThan(), children);
    assertNotNull(node);
    // rowId <= 'd'
    ExprNodeDesc column2 = new ExprNodeColumnDesc(TypeInfoFactory.stringTypeInfo, "rid", null, false);
    ExprNodeDesc constant2 = new ExprNodeConstantDesc(TypeInfoFactory.stringTypeInfo, "d");
    List<ExprNodeDesc> children2 = Lists.newArrayList();
    children2.add(column2);
    children2.add(constant2);
    ExprNodeDesc node2 = new ExprNodeGenericFuncDesc(TypeInfoFactory.stringTypeInfo, new GenericUDFOPEqualOrLessThan(), children2);
    assertNotNull(node2);
    // rowId >= 'q'
    ExprNodeDesc column3 = new ExprNodeColumnDesc(TypeInfoFactory.stringTypeInfo, "rid", null, false);
    ExprNodeDesc constant3 = new ExprNodeConstantDesc(TypeInfoFactory.stringTypeInfo, "q");
    List<ExprNodeDesc> children3 = Lists.newArrayList();
    children3.add(column3);
    children3.add(constant3);
    ExprNodeDesc node3 = new ExprNodeGenericFuncDesc(TypeInfoFactory.stringTypeInfo, new GenericUDFOPEqualOrGreaterThan(), children3);
    assertNotNull(node3);
    // Or UDF, (rowId <= 'd' or rowId >= 'q')
    List<ExprNodeDesc> orFilters = Lists.newArrayList();
    orFilters.add(node2);
    orFilters.add(node3);
    ExprNodeGenericFuncDesc orNode = new ExprNodeGenericFuncDesc(TypeInfoFactory.stringTypeInfo, new GenericUDFOPOr(), orFilters);
    // And UDF, (rowId >= 'h' and (rowId <= 'd' or rowId >= 'q'))
    List<ExprNodeDesc> andFilters = Lists.newArrayList();
    andFilters.add(node);
    andFilters.add(orNode);
    ExprNodeGenericFuncDesc both = new ExprNodeGenericFuncDesc(TypeInfoFactory.stringTypeInfo, new GenericUDFOPAnd(), andFilters);
    // Should generate ['q', +inf)
    List<Range> expectedRanges = Arrays.asList(new Range(new Key("q"), true, null, false));
    AccumuloRangeGenerator rangeGenerator = new AccumuloRangeGenerator(conf, handler, rowIdMapping, "rid");
    SemanticDispatcher disp = new DefaultRuleDispatcher(rangeGenerator, Collections.<SemanticRule, SemanticNodeProcessor>emptyMap(), null);
    SemanticGraphWalker ogw = new DefaultGraphWalker(disp);
    ArrayList<Node> topNodes = new ArrayList<Node>();
    topNodes.add(both);
    HashMap<Node, Object> nodeOutput = new HashMap<Node, Object>();
    try {
        ogw.startWalking(topNodes, nodeOutput);
    } catch (SemanticException ex) {
        throw new RuntimeException(ex);
    }
    Object result = nodeOutput.get(both);
    Assert.assertNotNull(result);
    Assert.assertTrue("Result from graph walk was not a List", result instanceof List);
    @SuppressWarnings("unchecked") List<Range> actualRanges = (List<Range>) result;
    Assert.assertEquals(expectedRanges, actualRanges);
}

Example 5 with SemanticDispatcher

use of org.apache.hadoop.hive.ql.lib.SemanticDispatcher in project hive by apache.

the class TestAccumuloRangeGenerator method testRangeOverNonRowIdField.

@Test
public void testRangeOverNonRowIdField() throws Exception {
    // foo >= 'f'
    ExprNodeDesc column = new ExprNodeColumnDesc(TypeInfoFactory.stringTypeInfo, "foo", null, false);
    ExprNodeDesc constant = new ExprNodeConstantDesc(TypeInfoFactory.stringTypeInfo, "f");
    List<ExprNodeDesc> children = Lists.newArrayList();
    children.add(column);
    children.add(constant);
    ExprNodeDesc node = new ExprNodeGenericFuncDesc(TypeInfoFactory.stringTypeInfo, new GenericUDFOPEqualOrGreaterThan(), children);
    assertNotNull(node);
    // foo <= 'm'
    ExprNodeDesc column2 = new ExprNodeColumnDesc(TypeInfoFactory.stringTypeInfo, "foo", null, false);
    ExprNodeDesc constant2 = new ExprNodeConstantDesc(TypeInfoFactory.stringTypeInfo, "m");
    List<ExprNodeDesc> children2 = Lists.newArrayList();
    children2.add(column2);
    children2.add(constant2);
    ExprNodeDesc node2 = new ExprNodeGenericFuncDesc(TypeInfoFactory.stringTypeInfo, new GenericUDFOPEqualOrLessThan(), children2);
    assertNotNull(node2);
    // And UDF
    List<ExprNodeDesc> bothFilters = Lists.newArrayList();
    bothFilters.add(node);
    bothFilters.add(node2);
    ExprNodeGenericFuncDesc both = new ExprNodeGenericFuncDesc(TypeInfoFactory.stringTypeInfo, new GenericUDFOPAnd(), bothFilters);
    AccumuloRangeGenerator rangeGenerator = new AccumuloRangeGenerator(conf, handler, rowIdMapping, "rid");
    SemanticDispatcher disp = new DefaultRuleDispatcher(rangeGenerator, Collections.<SemanticRule, SemanticNodeProcessor>emptyMap(), null);
    SemanticGraphWalker ogw = new DefaultGraphWalker(disp);
    ArrayList<Node> topNodes = new ArrayList<Node>();
    topNodes.add(both);
    HashMap<Node, Object> nodeOutput = new HashMap<Node, Object>();
    try {
        ogw.startWalking(topNodes, nodeOutput);
    } catch (SemanticException ex) {
        throw new RuntimeException(ex);
    }
    // Filters are not over the rowid, therefore scan everything
    Object result = nodeOutput.get(both);
    Assert.assertNull(result);
}