Examples with TransformContext io.cdap.cdap.etl.api.TransformContext used on opensource projects

Example 21 with TransformContext

use of io.cdap.cdap.etl.api.TransformContext in project hydrator-plugins by cdapio.

the class ProjectionTransformTest method testDropRenameConvert.

@Test
public void testDropRenameConvert() throws Exception {
    Schema schema = Schema.recordOf("record", Schema.Field.of("x", Schema.of(Schema.Type.INT)), Schema.Field.of("y", Schema.nullableOf(Schema.of(Schema.Type.INT))));
    StructuredRecord input = StructuredRecord.builder(schema).set("x", 5).set("y", 10).build();
    ProjectionTransform.ProjectionTransformConfig config = new ProjectionTransform.ProjectionTransformConfig("x", "y:x", "y:string", null);
    Transform<StructuredRecord, StructuredRecord> transform = new ProjectionTransform(config);
    TransformContext transformContext = new MockTransformContext();
    transform.initialize(transformContext);
    MockEmitter<StructuredRecord> emitter = new MockEmitter<>();
    transform.transform(input, emitter);
    StructuredRecord output = emitter.getEmitted().get(0);
    Schema expectedSchema = Schema.recordOf("record.projected", Schema.Field.of("x", Schema.nullableOf(Schema.of(Schema.Type.STRING))));
    Assert.assertEquals(expectedSchema, output.getSchema());
    Assert.assertEquals("10", output.get("x"));
}

Example 22 with TransformContext

use of io.cdap.cdap.etl.api.TransformContext in project hydrator-plugins by cdapio.

the class ProjectionTransformTest method testConvertFromString.

@Test
public void testConvertFromString() throws Exception {
    Schema schema = Schema.recordOf("record", Schema.Field.of("booleanField", Schema.of(Schema.Type.STRING)), Schema.Field.of("intField", Schema.of(Schema.Type.STRING)), Schema.Field.of("longField", Schema.of(Schema.Type.STRING)), Schema.Field.of("floatField", Schema.of(Schema.Type.STRING)), Schema.Field.of("doubleField", Schema.of(Schema.Type.STRING)), Schema.Field.of("bytesField", Schema.of(Schema.Type.STRING)), Schema.Field.of("stringField", Schema.of(Schema.Type.STRING)));
    ProjectionTransform.ProjectionTransformConfig config = new ProjectionTransform.ProjectionTransformConfig(null, null, "booleanField:boolean,intField:int,longField:long,floatField:float," + "doubleField:double,bytesField:bytes,stringField:string", null);
    Transform<StructuredRecord, StructuredRecord> transform = new ProjectionTransform(config);
    TransformContext transformContext = new MockTransformContext();
    transform.initialize(transformContext);
    StructuredRecord input = StructuredRecord.builder(schema).set("booleanField", "true").set("intField", "28").set("longField", "99").set("floatField", "2.71").set("doubleField", "3.14").set("bytesField", "foo").set("stringField", "bar").build();
    MockEmitter<StructuredRecord> emitter = new MockEmitter<>();
    transform.transform(input, emitter);
    StructuredRecord output = emitter.getEmitted().get(0);
    Schema expectedSchema = Schema.recordOf(SIMPLE_TYPES_SCHEMA.getRecordName() + ".projected", SIMPLE_TYPES_SCHEMA.getFields());
    Assert.assertEquals(expectedSchema, output.getSchema());
    Assert.assertTrue((Boolean) output.get("booleanField"));
    Assert.assertEquals(28, output.<Integer>get("intField").intValue());
    Assert.assertEquals(99L, output.<Long>get("longField").longValue());
    Assert.assertTrue(Math.abs(2.71f - (Float) output.get("floatField")) < 0.000001);
    Assert.assertTrue(Math.abs(3.14 - (Double) output.get("doubleField")) < 0.000001);
    Assert.assertArrayEquals(Bytes.toBytes("foo"), (byte[]) output.get("bytesField"));
    Assert.assertEquals("bar", output.get("stringField"));
}

Example 23 with TransformContext

use of io.cdap.cdap.etl.api.TransformContext in project hydrator-plugins by cdapio.

the class ProjectionTransformTest method testConvertToInt.

@Test
public void testConvertToInt() throws Exception {
    ProjectionTransform.ProjectionTransformConfig config = new ProjectionTransform.ProjectionTransformConfig(null, null, "doubleField:int,floatField:int", null);
    Transform<StructuredRecord, StructuredRecord> transform = new ProjectionTransform(config);
    TransformContext transformContext = new MockTransformContext();
    transform.initialize(transformContext);
    MockEmitter<StructuredRecord> emitter = new MockEmitter<>();
    transform.transform(SIMPLE_TYPES_RECORD, emitter);
    StructuredRecord output = emitter.getEmitted().get(0);
    Schema expectedSchema = Schema.recordOf("record.projected", Schema.Field.of("booleanField", Schema.of(Schema.Type.BOOLEAN)), Schema.Field.of("intField", Schema.of(Schema.Type.INT)), Schema.Field.of("longField", Schema.of(Schema.Type.LONG)), Schema.Field.of("floatField", Schema.of(Schema.Type.INT)), Schema.Field.of("doubleField", Schema.of(Schema.Type.INT)), Schema.Field.of("bytesField", Schema.of(Schema.Type.BYTES)), Schema.Field.of("stringField", Schema.of(Schema.Type.STRING)));
    Assert.assertEquals(expectedSchema, output.getSchema());
    Assert.assertTrue((Boolean) output.get("booleanField"));
    Assert.assertEquals(28, output.<Integer>get("intField").intValue());
    Assert.assertEquals(99L, output.<Long>get("longField").longValue());
    Assert.assertEquals(3, output.<Integer>get("floatField").intValue());
    Assert.assertEquals(3, output.<Integer>get("doubleField").intValue());
    Assert.assertArrayEquals(Bytes.toBytes("foo"), (byte[]) output.get("bytesField"));
    Assert.assertEquals("bar", output.get("stringField"));
}

Example 24 with TransformContext

use of io.cdap.cdap.etl.api.TransformContext in project hydrator-plugins by cdapio.

the class ProjectionTransformTest method testMultipleRenamesToSameField.

@Test
public void testMultipleRenamesToSameField() throws Exception {
    ProjectionTransform.ProjectionTransformConfig config = new ProjectionTransform.ProjectionTransformConfig(null, "x:z,y:z", null, null);
    Transform<StructuredRecord, StructuredRecord> transform = new ProjectionTransform(config);
    TransformContext transformContext = new MockTransformContext();
    try {
        transform.initialize(transformContext);
        Assert.fail();
    } catch (ValidationException e) {
        Assert.assertEquals(1, e.getFailures().size());
        Assert.assertEquals(1, e.getFailures().get(0).getCauses().size());
        Cause expectedCause = new Cause();
        expectedCause.addAttribute(CauseAttributes.STAGE_CONFIG, ProjectionTransform.ProjectionTransformConfig.RENAME);
        expectedCause.addAttribute(STAGE, MOCK_STAGE);
        Assert.assertEquals(expectedCause, e.getFailures().get(0).getCauses().get(0));
    }
}

Example 25 with TransformContext

use of io.cdap.cdap.etl.api.TransformContext in project hydrator-plugins by cdapio.

the class ProjectionTransformTest method testConvertNullField.

@Test
public void testConvertNullField() throws Exception {
    ProjectionTransform.ProjectionTransformConfig config = new ProjectionTransform.ProjectionTransformConfig(null, null, "x:long", null);
    Transform<StructuredRecord, StructuredRecord> transform = new ProjectionTransform(config);
    TransformContext transformContext = new MockTransformContext();
    transform.initialize(transformContext);
    Schema inputSchema = Schema.recordOf("record", Schema.Field.of("x", Schema.nullableOf(Schema.of(Schema.Type.INT))));
    StructuredRecord input = StructuredRecord.builder(inputSchema).build();
    MockEmitter<StructuredRecord> emitter = new MockEmitter<>();
    transform.transform(input, emitter);
    StructuredRecord output = emitter.getEmitted().get(0);
    Schema expectedSchema = Schema.recordOf("record.projected", Schema.Field.of("x", Schema.nullableOf(Schema.of(Schema.Type.LONG))));
    Assert.assertEquals(expectedSchema, output.getSchema());
    Assert.assertNull(output.get("x"));
}