Examples with BinaryEncoder co.cask.cdap.common.io.BinaryEncoder used on opensource projects

Example 26 with BinaryEncoder

use of co.cask.cdap.common.io.BinaryEncoder in project cdap by caskdata.

the class RecordWithString method testCollection.

@Test
public void testCollection() throws UnsupportedTypeException, IOException {
    List<String> list = Lists.newArrayList("1", "2", "3");
    Schema sourceSchema = new ReflectionSchemaGenerator().generate(new TypeToken<List<String>>() {
    }.getType());
    Schema targetSchema = new ReflectionSchemaGenerator().generate(new TypeToken<Set<String>>() {
    }.getType());
    PipedOutputStream output = new PipedOutputStream();
    PipedInputStream input = new PipedInputStream(output);
    new ReflectionDatumWriter<List<String>>(sourceSchema).encode(list, new BinaryEncoder(output));
    Set<String> set = new ReflectionDatumReader<>(targetSchema, new TypeToken<Set<String>>() {
    }).read(new BinaryDecoder(input), sourceSchema);
    Assert.assertEquals(Sets.newHashSet("1", "2", "3"), set);
    targetSchema = new ReflectionSchemaGenerator().generate(String[].class);
    new ReflectionDatumWriter<List<String>>(sourceSchema).encode(list, new BinaryEncoder(output));
    String[] array = new ReflectionDatumReader<>(targetSchema, new TypeToken<String[]>() {
    }).read(new BinaryDecoder(input), sourceSchema);
    Assert.assertArrayEquals(new String[] { "1", "2", "3" }, array);
}

Example 27 with BinaryEncoder

use of co.cask.cdap.common.io.BinaryEncoder in project cdap by caskdata.

the class RecordWithString method testCircularRef.

@Test(expected = IOException.class)
public void testCircularRef() throws UnsupportedTypeException, IOException {
    Schema schema = new ReflectionSchemaGenerator().generate(Node.class);
    Node head = new Node();
    head.next = new Node();
    head.next.next = head;
    ByteArrayOutputStream output = new ByteArrayOutputStream();
    new ReflectionDatumWriter<Node>(schema).encode(head, new BinaryEncoder(output));
}

Example 28 with BinaryEncoder

use of co.cask.cdap.common.io.BinaryEncoder in project cdap by caskdata.

the class RecordWithString method testTypeProject.

@Test
public void testTypeProject() throws IOException, UnsupportedTypeException {
    final Record1 r1 = new Record1(10, Maps.<Integer, Value>newHashMap(), new URL("http://www.yahoo.com"));
    r1.properties.put(1, new Value(1, "Name1"));
    r1.properties.put(2, new Value(2, "Name2"));
    r1.properties.put(3, null);
    PipedOutputStream output = new PipedOutputStream();
    PipedInputStream input = new PipedInputStream(output);
    Schema sourceSchema = new ReflectionSchemaGenerator().generate(Record1.class);
    Schema targetSchema = new ReflectionSchemaGenerator().generate(Record2.class);
    new ReflectionDatumWriter<Record1>(sourceSchema).encode(r1, new BinaryEncoder(output));
    Record2 r2 = new ReflectionDatumReader<>(targetSchema, TypeToken.of(Record2.class)).read(new BinaryDecoder(input), sourceSchema);
    Assert.assertEquals(10L, r2.i.longValue());
    Assert.assertTrue(Iterables.all(r2.properties.entrySet(), new Predicate<Map.Entry<String, Value>>() {

        @Override
        public boolean apply(Map.Entry<String, Value> input) {
            Value value = r1.properties.get(Integer.valueOf(input.getKey()));
            return (value == null && input.getValue() == null) || (value.equals(input.getValue()));
        }
    }));
    Assert.assertNull(r2.name);
    Assert.assertArrayEquals(new long[] { 1L, 2L }, r2.numbers);
    Assert.assertEquals(URI.create("http://www.yahoo.com"), r2.url);
    Assert.assertEquals(r1.uuid, r2.uuid);
}

Example 29 with BinaryEncoder

use of co.cask.cdap.common.io.BinaryEncoder in project cdap by caskdata.

the class RecordWithString method testEnum.

@Test
public void testEnum() throws IOException, UnsupportedTypeException {
    PipedOutputStream output = new PipedOutputStream();
    PipedInputStream input = new PipedInputStream(output);
    Schema schema = new ReflectionSchemaGenerator().generate(TestEnum.class);
    ReflectionDatumWriter<TestEnum> writer = new ReflectionDatumWriter<>(schema);
    BinaryEncoder encoder = new BinaryEncoder(output);
    writer.encode(TestEnum.VALUE1, encoder);
    writer.encode(TestEnum.VALUE3, encoder);
    writer.encode(TestEnum.VALUE2, encoder);
    BinaryDecoder decoder = new BinaryDecoder(input);
    Schema readSchema = Schema.parseJson(schema.toString());
    ReflectionDatumReader<TestEnum> reader = new ReflectionDatumReader<>(readSchema, TypeToken.of(TestEnum.class));
    Assert.assertEquals(TestEnum.VALUE1, reader.read(decoder, readSchema));
    Assert.assertEquals(TestEnum.VALUE3, reader.read(decoder, readSchema));
    Assert.assertEquals(TestEnum.VALUE2, reader.read(decoder, readSchema));
}

Example 30 with BinaryEncoder

use of co.cask.cdap.common.io.BinaryEncoder in project cdap by caskdata.

the class ObjectStoreDataset method encode.

private byte[] encode(T object) {
    // encode T using schema
    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    BinaryEncoder encoder = new BinaryEncoder(bos);
    try {
        this.datumWriter.encode(object, encoder);
    } catch (IOException e) {
        // SHOULD NEVER happen
        throw new DataSetException("Failed to encode object to be written: " + e.getMessage(), e);
    }
    return bos.toByteArray();
}