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

Example 1 with ReflectionRowRecordReader

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

the class ReflectionTableTest method testStructuredRecordProjection.

@Test
public void testStructuredRecordProjection() 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);
                ReflectionRowRecordReader rowReader = new ReflectionRowRecordReader(projSchema, null);
                StructuredRecord actual = rowReader.read(row, fullSchema);
                assertRecordEqualsUser(projected, actual);
            }
        });
    } finally {
        dsFrameworkUtil.deleteInstance(users);
    }
}

Example 2 with ReflectionRowRecordReader

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

the class ReflectionTableTest method testStructuredRecordRepresentation.

@Test
public void testStructuredRecordRepresentation() throws Exception {
    dsFrameworkUtil.createInstance("table", users, DatasetProperties.builder().build());
    try {
        final Table usersTable = dsFrameworkUtil.getInstance(users);
        final byte[] rowKey = Bytes.toBytes(123);
        final Schema schema = new ReflectionSchemaGenerator().generate(User.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<>(schema);
                putWriter.write(SAMUEL, put);
                usersTable.put(put);
                Row row = usersTable.get(rowKey);
                ReflectionRowRecordReader rowReader = new ReflectionRowRecordReader(schema, null);
                StructuredRecord actual = rowReader.read(row, schema);
                assertRecordEqualsUser(SAMUEL, actual);
            }
        });
    } finally {
        dsFrameworkUtil.deleteInstance(users);
    }
}