Examples with ReflectionRowReader co.cask.cdap.internal.io.ReflectionRowReader used on opensource projects

Example 1 with ReflectionRowReader

use of co.cask.cdap.internal.io.ReflectionRowReader in project cdap by caskdata.

the class ReflectionTableTest method assertGetAndPut.

private void assertGetAndPut(final Table table, final byte[] rowKey, final User obj, final Schema schema) throws Exception {
    // TableDataset is not accessible here, but we know that's the underlying implementation...
    TransactionExecutor tx = dsFrameworkUtil.newTransactionExecutor((TransactionAware) table);
    tx.execute(new TransactionExecutor.Subroutine() {

        @Override
        public void apply() throws Exception {
            Put put = new Put(rowKey);
            ReflectionPutWriter<User> putWriter = new ReflectionPutWriter<>(schema);
            putWriter.write(obj, put);
            table.put(put);
            Row row = table.get(rowKey);
            ReflectionRowReader<User> rowReader = new ReflectionRowReader<>(schema, TypeToken.of(User.class));
            User actual = rowReader.read(row, schema);
            Assert.assertEquals(obj, actual);
        }
    });
}

Example 2 with ReflectionRowReader

use of co.cask.cdap.internal.io.ReflectionRowReader in project cdap by caskdata.

the class ReflectionTableTest method testTypeProjection.

@Test
public void testTypeProjection() throws Exception {
    dsFrameworkUtil.createInstance("table", users, DatasetProperties.builder().build());
    try {
        final Table usersTable = dsFrameworkUtil.getInstance(users);
        final byte[] rowKey = Bytes.toBytes(123);
        final User2 projected = new User2("Samuel L.", 123L, ((Float) 50000000.02f).doubleValue(), Double.MAX_VALUE, ByteBuffer.wrap(new byte[] { 0, 1, 2 }));
        final Schema fullSchema = new ReflectionSchemaGenerator().generate(User.class);
        final Schema projSchema = new ReflectionSchemaGenerator().generate(User2.class);
        // TableDataset is not accessible here, but we know that's the underlying implementation...
        TransactionExecutor tx = dsFrameworkUtil.newTransactionExecutor((TransactionAware) usersTable);
        tx.execute(new TransactionExecutor.Subroutine() {

            @Override
            public void apply() throws Exception {
                Put put = new Put(rowKey);
                ReflectionPutWriter<User> putWriter = new ReflectionPutWriter<>(fullSchema);
                putWriter.write(SAMUEL, put);
                usersTable.put(put);
                Row row = usersTable.get(rowKey);
                ReflectionRowReader<User2> rowReader = new ReflectionRowReader<>(projSchema, TypeToken.of(User2.class));
                User2 actual = rowReader.read(row, fullSchema);
                Assert.assertEquals(projected, actual);
            }
        });
    } finally {
        dsFrameworkUtil.deleteInstance(users);
    }
}