Examples with Row co.cask.cdap.api.dataset.table.Row used on opensource projects

Example 71 with Row

use of co.cask.cdap.api.dataset.table.Row in project cdap by caskdata.

the class IndexedTableTest method testIncrementIndexing.

@Test
public void testIncrementIndexing() throws Exception {
    DatasetId incrTabInstance = DatasetFrameworkTestUtil.NAMESPACE_ID.dataset("incrtab");
    dsFrameworkUtil.createInstance("indexedTable", incrTabInstance, DatasetProperties.builder().add(IndexedTable.INDEX_COLUMNS_CONF_KEY, "idx1,idx2,idx3").build());
    final IndexedTable iTable = dsFrameworkUtil.getInstance(incrTabInstance);
    final byte[] idxCol1 = Bytes.toBytes("idx1");
    final byte[] idxCol2 = Bytes.toBytes("idx2");
    final byte[] idxCol3 = Bytes.toBytes("idx3");
    final byte[] row1 = Bytes.toBytes("row1");
    try {
        TransactionExecutor tx = dsFrameworkUtil.newTransactionExecutor(iTable);
        tx.execute(new TransactionExecutor.Subroutine() {

            @Override
            public void apply() throws Exception {
                long result = iTable.incrementAndGet(row1, idxCol1, 1);
                assertEquals(1L, result);
            }
        });
        final byte[] oneBytes = Bytes.toBytes(1L);
        tx.execute(new TransactionExecutor.Subroutine() {

            @Override
            public void apply() throws Exception {
                try (Scanner scanner = iTable.readByIndex(idxCol1, oneBytes)) {
                    Row row = scanner.next();
                    TableAssert.assertRow(row, row1, new byte[][] { idxCol1 }, new byte[][] { oneBytes });
                    assertEmpty(scanner);
                }
            }
        });
        tx.execute(new TransactionExecutor.Subroutine() {

            @Override
            public void apply() throws Exception {
                long result = iTable.incrementAndGet(row1, idxCol1, 1);
                assertEquals(2L, result);
            }
        });
        final byte[] twoBytes = Bytes.toBytes(2L);
        tx.execute(new TransactionExecutor.Subroutine() {

            @Override
            public void apply() throws Exception {
                // previous index by value 1 should be gone
                Scanner scanner = iTable.readByIndex(idxCol1, oneBytes);
                try {
                    assertEmpty(scanner);
                } finally {
                    scanner.close();
                }
                // should now be indexed by value 2
                scanner = iTable.readByIndex(idxCol1, twoBytes);
                try {
                    Row row = scanner.next();
                    TableAssert.assertRow(row, row1, new byte[][] { idxCol1 }, new byte[][] { twoBytes });
                    assertEmpty(scanner);
                } finally {
                    scanner.close();
                }
            }
        });
        final byte[] threeBytes = Bytes.toBytes(3L);
        final byte[][] idxCols = new byte[][] { idxCol1, idxCol2, idxCol3 };
        final byte[][] expectedValues = new byte[][] { threeBytes, oneBytes, oneBytes };
        tx.execute(new TransactionExecutor.Subroutine() {

            @Override
            public void apply() throws Exception {
                Row result = iTable.incrementAndGet(row1, idxCols, new long[] { 1, 1, 1 });
                assertNotNull(result);
                TableAssert.assertColumns(result, idxCols, expectedValues);
            }
        });
        tx.execute(new TransactionExecutor.Subroutine() {

            @Override
            public void apply() throws Exception {
                Scanner scanner = iTable.readByIndex(idxCol1, threeBytes);
                try {
                    Row row = scanner.next();
                    TableAssert.assertRow(row, row1, idxCols, expectedValues);
                    assertEmpty(scanner);
                } finally {
                    scanner.close();
                }
                scanner = iTable.readByIndex(idxCol2, oneBytes);
                try {
                    Row row = scanner.next();
                    TableAssert.assertRow(row, row1, idxCols, expectedValues);
                    assertEmpty(scanner);
                } finally {
                    scanner.close();
                }
                scanner = iTable.readByIndex(idxCol3, oneBytes);
                try {
                    Row row = scanner.next();
                    TableAssert.assertRow(row, row1, idxCols, expectedValues);
                    assertEmpty(scanner);
                } finally {
                    scanner.close();
                }
            }
        });
        final byte[] row2 = Bytes.toBytes("row2");
        tx.execute(new TransactionExecutor.Subroutine() {

            @Override
            public void apply() throws Exception {
                // read-less increment on an indexed column should throw an exception
                try {
                    iTable.increment(row2, idxCol1, 1L);
                    fail("Expected IllegalArgumentException performing increment on indexed column");
                } catch (IllegalArgumentException iae) {
                // expected
                }
                // read-less increment on a non-indexed column should succeed
                iTable.increment(row2, valCol, 1L);
                byte[] result = iTable.get(row2, valCol);
                assertArrayEquals(oneBytes, result);
            }
        });
        tx.execute(new TransactionExecutor.Subroutine() {

            @Override
            public void apply() throws Exception {
                iTable.put(row2, valCol, valA);
            }
        });
        // increment against a column with non-long value should fail
        tx.execute(new TransactionExecutor.Subroutine() {

            @Override
            public void apply() throws Exception {
                try {
                    iTable.incrementAndGet(row2, valCol, 1L);
                    fail("Expected NumberFormatException from increment on a column with non-long value");
                } catch (NumberFormatException nfe) {
                // expected
                }
            }
        });
    } finally {
        dsFrameworkUtil.deleteInstance(incrTabInstance);
    }
}

Example 72 with Row

use of co.cask.cdap.api.dataset.table.Row in project cdap by caskdata.

the class IndexedTableTest method testIndexedOperations.

@Test
public void testIndexedOperations() throws Exception {
    TransactionExecutor txnl = dsFrameworkUtil.newTransactionExecutor(table);
    // start a new transaction
    txnl.execute(new TransactionExecutor.Subroutine() {

        @Override
        public void apply() throws Exception {
            // add a value c with idx = 1, and b with idx = 2
            table.put(new Put(keyC).add(idxCol, idx1).add(valCol, valC));
            table.put(new Put(keyB).add(idxCol, idx2).add(valCol, valB));
        }
    });
    txnl.execute(new TransactionExecutor.Subroutine() {

        @Override
        public void apply() throws Exception {
            // read by key c
            Row row = table.get(new Get(keyC, colIdxVal));
            TableAssert.assertColumns(row, colIdxVal, new byte[][] { idx1, valC });
            // read by key b
            row = table.get(new Get(keyB, colIdxVal));
            TableAssert.assertColumns(row, colIdxVal, new byte[][] { idx2, valB });
            // read by idx 1 -> c
            row = readFirst(table.readByIndex(idxCol, idx1));
            TableAssert.assertColumns(row, colIdxVal, new byte[][] { idx1, valC });
            // read by idx 2 -> b
            row = readFirst(table.readByIndex(idxCol, idx2));
            TableAssert.assertColumns(row, colIdxVal, new byte[][] { idx2, valB });
            // test read over empty index (idx 3)
            assertEmpty(table.readByIndex(idxCol, idx3));
        }
    });
    txnl.execute(new TransactionExecutor.Subroutine() {

        @Override
        public void apply() throws Exception {
            // add a value a with idx = 1
            table.put(new Put(keyA).add(idxCol, idx1).add(valCol, valA));
        }
    });
    // read by idx 1 -> a
    txnl.execute(new TransactionExecutor.Subroutine() {

        @Override
        public void apply() throws Exception {
            Row row = readFirst(table.readByIndex(idxCol, idx1));
            TableAssert.assertColumns(row, colIdxVal, new byte[][] { idx1, valA });
        }
    });
    // start a new transaction
    txnl.execute(new TransactionExecutor.Subroutine() {

        @Override
        public void apply() throws Exception {
            // delete value a
            table.delete(new Delete(keyA, colIdxVal));
        }
    });
    // read by idx 1 -> c
    txnl.execute(new TransactionExecutor.Subroutine() {

        @Override
        public void apply() throws Exception {
            Row row = readFirst(table.readByIndex(idxCol, idx1));
            TableAssert.assertColumns(row, colIdxVal, new byte[][] { idx1, valC });
        }
    });
    // start a new transaction
    txnl.execute(new TransactionExecutor.Subroutine() {

        @Override
        public void apply() throws Exception {
            // add a value aa with idx 2
            table.put(new Put(keyAA).add(idxCol, idx2).add(valCol, valAA));
        }
    });
    // read by idx 2 -> aa
    txnl.execute(new TransactionExecutor.Subroutine() {

        @Override
        public void apply() throws Exception {
            Row row = readFirst(table.readByIndex(idxCol, idx2));
            TableAssert.assertColumns(row, colIdxVal, new byte[][] { idx2, valAA });
        }
    });
    // start a new transaction
    txnl.execute(new TransactionExecutor.Subroutine() {

        @Override
        public void apply() throws Exception {
            // swap value for aa to ab
            Assert.assertTrue(table.compareAndSwap(keyAA, valCol, valAA, valAB));
        }
    });
    // read by idx 2 -> ab
    txnl.execute(new TransactionExecutor.Subroutine() {

        @Override
        public void apply() throws Exception {
            Row row = readFirst(table.readByIndex(idxCol, idx2));
            TableAssert.assertColumns(row, colIdxVal, new byte[][] { idx2, valAB });
        }
    });
    // start a new transaction
    txnl.execute(new TransactionExecutor.Subroutine() {

        @Override
        public void apply() throws Exception {
            // swap value for aa to bb
            Assert.assertTrue(table.compareAndSwap(keyAA, valCol, valAB, valBB));
        }
    });
    // read by idx 2 -> bb (value of key aa)
    txnl.execute(new TransactionExecutor.Subroutine() {

        @Override
        public void apply() throws Exception {
            Row row = readFirst(table.readByIndex(idxCol, idx2));
            TableAssert.assertColumns(row, colIdxVal, new byte[][] { idx2, valBB });
        }
    });
    // start a new transaction
    txnl.execute(new TransactionExecutor.Subroutine() {

        @Override
        public void apply() throws Exception {
            // swap value for aa to null
            Assert.assertTrue(table.compareAndSwap(keyAA, valCol, valBB, null));
        }
    });
    // read by idx 2 -> null (value of b)
    txnl.execute(new TransactionExecutor.Subroutine() {

        @Override
        public void apply() throws Exception {
            Row row = readFirst(table.readByIndex(idxCol, idx2));
            TableAssert.assertColumn(row, idxCol, idx2);
        }
    });
    // start a new transaction
    txnl.execute(new TransactionExecutor.Subroutine() {

        @Override
        public void apply() throws Exception {
            // swap idx for c to 3
            Assert.assertTrue(table.compareAndSwap(keyC, idxCol, idx1, idx3));
        }
    });
    // read by idx 1 -> null (no row has that any more)
    txnl.execute(new TransactionExecutor.Subroutine() {

        @Override
        public void apply() throws Exception {
            assertEmpty(table.readByIndex(idxCol, idx1));
            // read by idx 3 > c
            Row row = readFirst(table.readByIndex(idxCol, idx3));
            TableAssert.assertColumns(row, new byte[][] { idxCol, valCol }, new byte[][] { idx3, valC });
        }
    });
}

Example 73 with Row

use of co.cask.cdap.api.dataset.table.Row in project cdap by caskdata.

the class IndexedTableTest method testIndexedRangeLookups.

@Test
public void testIndexedRangeLookups() throws Exception {
    DatasetId indexRangedLookupDs = DatasetFrameworkTestUtil.NAMESPACE_ID.dataset("rangeLookup");
    dsFrameworkUtil.createInstance("indexedTable", indexRangedLookupDs, DatasetProperties.builder().add(IndexedTable.INDEX_COLUMNS_CONF_KEY, idxColString).build());
    final IndexedTable iTable = dsFrameworkUtil.getInstance(indexRangedLookupDs);
    TransactionExecutor txnl = dsFrameworkUtil.newTransactionExecutor(iTable);
    try {
        // start a new transaction
        txnl.execute(new TransactionExecutor.Subroutine() {

            @Override
            public void apply() throws Exception {
                // perform 5 puts, using idx values 1,2,3,4,5
                iTable.put(new Put(keyE).add(idxCol, idx4).add(valCol, valE));
                iTable.put(new Put(keyC).add(idxCol, idx1).add(valCol, valC));
                iTable.put(new Put(keyD).add(idxCol, idx5).add(valCol, valA));
                iTable.put(new Put(keyB).add(idxCol, idx2).add(valCol, valB));
                iTable.put(new Put(keyA).add(idxCol, idx3).add(valCol, valD));
            }
        });
        txnl.execute(new TransactionExecutor.Subroutine() {

            @Override
            public void apply() throws Exception {
                // do a scan using idx value range [idx2, idx5). Assert that we retrieve idx2, idx3, idx4.
                Scanner scanner = iTable.scanByIndex(idxCol, idx2, idx5);
                Row next = scanner.next();
                Assert.assertNotNull(next);
                Assert.assertTrue(Bytes.equals(keyB, next.getRow()));
                Assert.assertTrue(Bytes.equals(valB, next.get(valCol)));
                next = scanner.next();
                Assert.assertNotNull(next);
                Assert.assertTrue(Bytes.equals(keyA, next.getRow()));
                Assert.assertTrue(Bytes.equals(valD, next.get(valCol)));
                next = scanner.next();
                Assert.assertNotNull(next);
                Assert.assertTrue(Bytes.equals(keyE, next.getRow()));
                Assert.assertTrue(Bytes.equals(valE, next.get(valCol)));
                assertEmpty(scanner);
            }
        });
        txnl.execute(new TransactionExecutor.Subroutine() {

            @Override
            public void apply() throws Exception {
                // do a scan using idx value range [null (first row), idx3). Assert that we retrieve the values corresponding
                // to idx1, idx2.
                Scanner scanner = iTable.scanByIndex(idxCol, null, idx3);
                Row next = scanner.next();
                Assert.assertNotNull(next);
                Assert.assertTrue(Bytes.equals(keyC, next.getRow()));
                Assert.assertTrue(Bytes.equals(valC, next.get(valCol)));
                next = scanner.next();
                Assert.assertNotNull(next);
                Assert.assertTrue(Bytes.equals(keyB, next.getRow()));
                Assert.assertTrue(Bytes.equals(valB, next.get(valCol)));
                assertEmpty(scanner);
            }
        });
    } finally {
        dsFrameworkUtil.deleteInstance(indexRangedLookupDs);
    }
}

Example 74 with Row

use of co.cask.cdap.api.dataset.table.Row in project cdap by caskdata.

the class IndexedTableTest method testIndexKeyDelimiterAmbiguity.

@Test
public void testIndexKeyDelimiterAmbiguity() throws Exception {
    final byte[] a = { 'a' };
    final byte[] ab = { 'a', 0, 'b' };
    final byte[] abc = { 'a', 0, 'b', 0, 'c' };
    final byte[] bc = { 'b', 0, 'c' };
    final byte[] bcd = { 'b', 0, 'c', 'd' };
    final byte[] c = { 'c' };
    final byte[] d = { 'd' };
    final byte[] w = { 'w' };
    final byte[] x = { 'x' };
    final byte[] y = { 'y' };
    final byte[] z = { 'z' };
    DatasetId delimTabInstance = DatasetFrameworkTestUtil.NAMESPACE_ID.dataset("delimtab");
    dsFrameworkUtil.createInstance("indexedTable", delimTabInstance, DatasetProperties.builder().add(IndexedTable.INDEX_COLUMNS_CONF_KEY, Bytes.toString(a) + "," + Bytes.toString(ab)).build());
    final IndexedTable iTable = dsFrameworkUtil.getInstance(delimTabInstance);
    try {
        TransactionExecutor tx = dsFrameworkUtil.newTransactionExecutor(iTable);
        tx.execute(new TransactionExecutor.Subroutine() {

            @Override
            public void apply() throws Exception {
                iTable.put(x, a, bc);
                iTable.put(y, ab, c);
                iTable.put(w, a, bcd);
                iTable.put(z, abc, d);
            }
        });
        tx.execute(new TransactionExecutor.Subroutine() {

            @Override
            public void apply() throws Exception {
                // ensure that readByIndex filters teh false positive rows in index
                Scanner scanner = iTable.readByIndex(a, bc);
                try {
                    Row row = scanner.next();
                    Assert.assertNotNull(row);
                    Assert.assertArrayEquals(x, row.getRow());
                    Assert.assertArrayEquals(bc, row.get(a));
                    assertEmpty(scanner);
                } finally {
                    scanner.close();
                }
                scanner = iTable.readByIndex(ab, c);
                try {
                    Row row = scanner.next();
                    Assert.assertNotNull(row);
                    Assert.assertArrayEquals(y, row.getRow());
                    Assert.assertArrayEquals(c, row.get(ab));
                    assertEmpty(scanner);
                } finally {
                    scanner.close();
                }
                // ensure that scanByIndex filters the false positive rows in index
                scanner = iTable.scanByIndex(a, bcd, null);
                try {
                    Row row = scanner.next();
                    Assert.assertNotNull(row);
                    Assert.assertArrayEquals(w, row.getRow());
                    Assert.assertArrayEquals(bcd, row.get(a));
                    assertEmpty(scanner);
                } finally {
                    scanner.close();
                }
                scanner = iTable.scanByIndex(a, null, bcd);
                try {
                    Row row = scanner.next();
                    Assert.assertNotNull(row);
                    Assert.assertArrayEquals(x, row.getRow());
                    Assert.assertArrayEquals(bc, row.get(a));
                    assertEmpty(scanner);
                } finally {
                    scanner.close();
                }
            }
        });
    } finally {
        dsFrameworkUtil.deleteInstance(delimTabInstance);
    }
}

Example 75 with Row

use of co.cask.cdap.api.dataset.table.Row 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);
    }
}