Examples with Projection com.hortonworks.streamline.streams.layout.component.rule.expression.Projection used on opensource projects

Example 6 with Projection

use of com.hortonworks.streamline.streams.layout.component.rule.expression.Projection in project streamline by hortonworks.

the class RulesProcessorMock method getRule.

private Rule getRule(long ruleId, Condition condition, TransformAction action) {
    Rule rule = new Rule();
    rule.setId(ruleId);
    rule.setName(RULE + "_" + ruleId);
    rule.setDescription(RULE + "_" + ruleId + "_desc");
    rule.setRuleProcessorName(RULE_PROCESSOR + "_" + ruleProcessorId);
    rule.setCondition(condition);
    if (ruleId % 2 == 0) {
        Projection projection = new Projection();
        Expression humidity = new FieldExpression(Field.of("humidity", Schema.Type.INTEGER));
        Expression deviceName = new FieldExpression(Field.of("devicename", Schema.Type.STRING));
        Expression incr = new FunctionExpression("INCR", "com.hortonworks.streamline.streams.runtime.storm.layout.runtime.rule.topology.RulesProcessorMock$Incr", ImmutableList.<Expression>of(humidity, new Literal("10")));
        Expression upper = new FunctionExpression("UPPER", ImmutableList.<Expression>of(deviceName));
        projection.setExpressions(ImmutableList.<Expression>of(humidity, incr, upper));
        rule.setProjection(projection);
    }
    rule.setActions(Collections.singletonList((Action) action));
    return rule;
}

Example 7 with Projection

use of com.hortonworks.streamline.streams.layout.component.rule.expression.Projection in project streamline by hortonworks.

the class RuleParserTest method testParseAsExpressionWithCase.

@Test
public void testParseAsExpressionWithCase() throws Exception {
    new Expectations() {

        {
            mockCatalogService.listStreamInfos(withAny(new ArrayList<QueryParam>()));
            result = mockTopologyStream;
            mockTopologyStream.getStreamId();
            result = "teststream";
            mockTopologyStream.getFields();
            result = Arrays.asList(Schema.Field.of("temperature", Schema.Type.LONG), Schema.Field.of("humidity", Schema.Type.LONG));
        }
    };
    TopologyRule topologyRule = new TopologyRule();
    topologyRule.setId(1L);
    topologyRule.setName("Test");
    topologyRule.setDescription("test rule");
    topologyRule.setTopologyId(1L);
    topologyRule.setVersionId(1L);
    topologyRule.setSql("select temperature as \"temp_TEST\" from teststream where humidity > 80");
    RuleParser ruleParser = new RuleParser(mockCatalogService, topologyRule.getSql(), topologyRule.getTopologyId(), topologyRule.getVersionId());
    ruleParser.parse();
    assertEquals(new Condition(new BinaryExpression(Operator.GREATER_THAN, new FieldExpression(Schema.Field.of("humidity", Schema.Type.LONG)), new Literal("80"))), ruleParser.getCondition());
    assertEquals(new Projection(Arrays.asList(new AsExpression(new FieldExpression(Schema.Field.of("temperature", Schema.Type.LONG)), "temp_TEST"))), ruleParser.getProjection());
    assertEquals(1, ruleParser.getStreams().size());
    assertEquals(new Stream("teststream", Arrays.asList(Schema.Field.of("temperature", Schema.Type.LONG), Schema.Field.of("humidity", Schema.Type.LONG))), ruleParser.getStreams().get(0));
    assertNull(ruleParser.getGroupBy());
    assertNull(ruleParser.getHaving());
}

Example 8 with Projection

use of com.hortonworks.streamline.streams.layout.component.rule.expression.Projection in project streamline by hortonworks.

the class StormSqlExpressionTest method testCreateSelectProjectGroupBy.

@Test
public void testCreateSelectProjectGroupBy() throws Exception {
    // SELECT STREAM ID, MIN(SALARY) FROM FOO where ID > 0 GROUP BY (ID) HAVING ID > 2 AND MAX(SALARY) > 5
    Expression min_salary = new AggregateFunctionExpression("MIN", ImmutableList.of(new FieldExpression(Schema.Field.of("salary", Schema.Type.INTEGER))));
    Expression max_salary = new AggregateFunctionExpression("MAX", ImmutableList.of(new FieldExpression(Schema.Field.of("salary", Schema.Type.INTEGER))));
    Expression id = new FieldExpression(Schema.Field.of("id", Schema.Type.INTEGER));
    Expression id_gt_0 = new BinaryExpression(Operator.GREATER_THAN, id, new Literal("0"));
    Expression id_gt_2 = new BinaryExpression(Operator.GREATER_THAN, id, new Literal("2"));
    Expression max_salary_gt_5 = new BinaryExpression(Operator.GREATER_THAN, max_salary, new Literal("5"));
    GroupBy groupBy_id = new GroupBy();
    groupBy_id.setExpression(Collections.singletonList(id));
    Having having_id_gt_2 = new Having();
    having_id_gt_2.setExpression(new BinaryExpression(Operator.AND, id_gt_2, max_salary_gt_5));
    Condition condition = new Condition();
    condition.setExpression(id_gt_0);
    Projection projection = new Projection();
    projection.setExpressions(ImmutableList.<Expression>of(id, min_salary));
    stormSqlExpression = new StormSqlExpression(condition, projection, groupBy_id, having_id_gt_2);
    assertEquals("CREATE EXTERNAL TABLE RULETABLE (\"id\" INTEGER PRIMARY KEY, \"salary\" INTEGER) LOCATION 'schema:///RULETABLE'", stormSqlExpression.createTable("schema"));
    assertEquals("SELECT STREAM RULETABLE.\"id\", MIN(RULETABLE.\"salary\") FROM RULETABLE WHERE RULETABLE.\"id\" > 0 GROUP BY RULETABLE.\"id\" HAVING RULETABLE.\"id\" > 2 AND MAX(RULETABLE.\"salary\") > 5", stormSqlExpression.select());
}