Package com.cloudera.cdk.data

Examples of com.cloudera.cdk.data.PartitionExpression

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public class TestPartitionExpression {

  @Test
  public void testPartitionStrategy() {
    String expr = "hash(\"username\", \"username_part\", 2)";
    PartitionExpression expression = new PartitionExpression(expr, true);

    PartitionStrategy strategy = expression.evaluate();
    List<FieldPartitioner> fieldPartitioners = strategy.getFieldPartitioners();
    Assert.assertEquals(1, fieldPartitioners.size());
    FieldPartitioner fp = fieldPartitioners.get(0);
    Assert.assertEquals(HashFieldPartitioner.class, fp.getClass());
    Assert.assertEquals("username", fp.getSourceName());
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  @Test
  public void testSubpartitionStrategy() {
    String expr = "[hash(\"username\", \"username_part\", 2), hash(\"username2\", " +
        "\"username2_part\", 3)]";
    PartitionExpression expression = new PartitionExpression(expr, true);

    PartitionStrategy strategy = expression.evaluate();
    List<FieldPartitioner> fieldPartitioners = strategy.getFieldPartitioners();
    Assert.assertEquals(2, fieldPartitioners.size());

    FieldPartitioner fp0 = fieldPartitioners.get(0);
    Assert.assertEquals(HashFieldPartitioner.class, fp0.getClass());
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  }

  @Test
  public void testMixedSubpartitionStrategy() {
    String expr = "[year(\"timestamp\", \"year\"), minute(\"timestamp\", \"minute\")]";
    PartitionExpression expression = new PartitionExpression(expr, true);

    PartitionStrategy strategy = expression.evaluate();
    List<FieldPartitioner> fieldPartitioners = strategy.getFieldPartitioners();
    Assert.assertEquals(2, fieldPartitioners.size());

    FieldPartitioner fp0 = fieldPartitioners.get(0);
    Assert.assertEquals(YearFieldPartitioner.class, fp0.getClass());
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Related Classes of com.cloudera.cdk.data.PartitionExpression

  • com.cloudera.cdk.data.TestPartitionExpression
  • org.apache.commons.jexl2.JexlEngine
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