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

Example 1 with Expression

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

the class StormSqlExpressionTest method testCreateSelect.

@Test
public void testCreateSelect() throws Exception {
    Condition condition = new Condition();
    Expression function = new FunctionExpression("SUM", "com.hortonworks.streamline.MyPlus", ImmutableList.of(new FieldExpression(Schema.Field.of("x", Schema.Type.INTEGER)), new FieldExpression(Schema.Field.of("y", Schema.Type.INTEGER))));
    Expression expression = new BinaryExpression(Operator.GREATER_THAN, function, new Literal("100"));
    condition.setExpression(expression);
    stormSqlExpression = new StormSqlExpression(condition);
    assertEquals("CREATE EXTERNAL TABLE RULETABLE (\"x\" INTEGER, \"y\" INTEGER) LOCATION 'schema:///RULETABLE'", stormSqlExpression.createTable("schema"));
    assertEquals("SELECT STREAM \"x\", \"y\" FROM RULETABLE WHERE SUM(RULETABLE.\"x\", RULETABLE.\"y\") > 100", stormSqlExpression.select());
    assertEquals(Arrays.asList("CREATE FUNCTION SUM AS 'com.hortonworks.streamline.MyPlus'"), stormSqlExpression.createFunctions());
}

Example 2 with Expression

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

the class StormSqlExpressionTest method testGroupByMultipleFields.

@Test
public void testGroupByMultipleFields() throws Exception {
    // SELECT STREAM MIN(SALARY) FROM FOO where ID > 0 GROUP BY DEPTID, EMPID
    Expression min_salary = new AggregateFunctionExpression("MIN", ImmutableList.of(new FieldExpression(Schema.Field.of("salary", Schema.Type.INTEGER))));
    Expression deptid = new FieldExpression(Schema.Field.of("deptid", Schema.Type.INTEGER));
    Expression empid = new FieldExpression(Schema.Field.of("empid", Schema.Type.INTEGER));
    GroupBy groupBy = new GroupBy(ImmutableList.of(deptid, empid));
    Expression id = new FieldExpression(Schema.Field.of("id", Schema.Type.INTEGER));
    Expression id_gt_0 = new BinaryExpression(Operator.GREATER_THAN, id, new Literal("0"));
    Condition condition = new Condition();
    condition.setExpression(id_gt_0);
    Projection projection = new Projection();
    projection.setExpressions(ImmutableList.<Expression>of(min_salary));
    stormSqlExpression = new StormSqlExpression(condition, projection, groupBy, null);
    assertEquals("CREATE EXTERNAL TABLE RULETABLE (\"salary\" INTEGER, \"id\" INTEGER, \"deptid\" INTEGER PRIMARY KEY, " + "\"empid\" INTEGER) LOCATION 'schema:///RULETABLE'", stormSqlExpression.createTable("schema"));
    assertEquals("SELECT STREAM MIN(RULETABLE.\"salary\") FROM RULETABLE WHERE RULETABLE.\"id\" > 0 GROUP BY RULETABLE.\"deptid\",RULETABLE.\"empid\"", stormSqlExpression.select());
}

Example 3 with Expression

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

the class StormSqlExpressionTest method testProjectAndCondition.

@Test
public void testProjectAndCondition() throws Exception {
    Expression x = new FieldExpression(Schema.Field.of("x", Schema.Type.INTEGER));
    Expression y = new FieldExpression(Schema.Field.of("y", Schema.Type.INTEGER));
    Expression x_gt_100 = new BinaryExpression(Operator.GREATER_THAN, x, new Literal("100"));
    Projection projection = new Projection();
    projection.setExpressions(ImmutableList.<Expression>of(y));
    Condition condition = new Condition();
    condition.setExpression(x_gt_100);
    stormSqlExpression = new StormSqlExpression(condition, projection);
    assertEquals("CREATE EXTERNAL TABLE RULETABLE (\"y\" INTEGER, \"x\" INTEGER) LOCATION 'schema:///RULETABLE'", stormSqlExpression.createTable("schema"));
    assertEquals("SELECT STREAM RULETABLE.\"y\" FROM RULETABLE WHERE RULETABLE.\"x\" > 100", stormSqlExpression.select());
}

Example 4 with Expression

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

the class StormSqlExpressionTest method testCreateSelectProject.

@Test
public void testCreateSelectProject() throws Exception {
    Condition condition = new Condition();
    Expression function = new FunctionExpression("SUM", "com.hortonworks.streamline.MyPlus", ImmutableList.of(new FieldExpression(Schema.Field.of("x", Schema.Type.INTEGER)), new FieldExpression(Schema.Field.of("y", Schema.Type.INTEGER))));
    Expression z = new FieldExpression(Schema.Field.of("z", Schema.Type.INTEGER));
    Expression z_gt_100 = new BinaryExpression(Operator.GREATER_THAN, z, new Literal("100"));
    condition.setExpression(z_gt_100);
    Projection projection = new Projection();
    projection.setExpressions(ImmutableList.<Expression>of(function));
    stormSqlExpression = new StormSqlExpression(condition, projection);
    assertEquals("CREATE EXTERNAL TABLE RULETABLE (\"x\" INTEGER, \"y\" INTEGER, \"z\" INTEGER) LOCATION 'schema:///RULETABLE'", stormSqlExpression.createTable("schema"));
    assertEquals("SELECT STREAM SUM(RULETABLE.\"x\", RULETABLE.\"y\") FROM RULETABLE WHERE RULETABLE.\"z\" > 100", stormSqlExpression.select());
    assertEquals(Arrays.asList("CREATE FUNCTION SUM AS 'com.hortonworks.streamline.MyPlus'"), stormSqlExpression.createFunctions());
}

Example 5 with Expression

use of com.hortonworks.streamline.streams.layout.component.rule.expression.Expression 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;
}