@Override
public DatasetSpecification configure(String instanceName, DatasetProperties properties) {
return DatasetSpecification.builder(instanceName, getName())
.properties(properties.getProperties())
.datasets(tableDef.configure("key-value-table", properties))
.build();
}
/**
* Creates properties for {@link Table} or {@link Table} data set instance.
*
* @param level level on which to detect conflicts in changes made by different transactions
* @param ttl time to live for data written into a table, in ms. {@link #NO_TTL} means unlimited
* @return {@link DatasetProperties} for the data set
*/
public static DatasetProperties tableProperties(
ConflictDetection level, int ttl, DatasetProperties props) {
return DatasetProperties.builder()
.add(Table.PROPERTY_CONFLICT_LEVEL, level.name())
.add(Table.PROPERTY_TTL, ttl)
.addAll(props.getProperties())
.build();
}
@Test
public void testTTL() throws Exception {
// for the purpose of this test it is fine not to configure ttl when creating table: we want to
// see if it
// applies on reading
int ttl = 1000;
String ttlTable = "ttl";
String noTtlTable = "nottl";
DatasetProperties props =
DatasetProperties.builder().add(Table.PROPERTY_TTL, String.valueOf(ttl)).build();
getTableAdmin(CONTEXT1, ttlTable, props).create();
DatasetSpecification ttlTableSpec =
DatasetSpecification.builder(ttlTable, HBaseTable.class.getName())
.properties(props.getProperties())
.build();
HBaseTable table =
new HBaseTable(CONTEXT1, ttlTableSpec, cConf, testHBase.getConfiguration(), hBaseTableUtil);
DetachedTxSystemClient txSystemClient = new DetachedTxSystemClient();
Transaction tx = txSystemClient.startShort();
table.startTx(tx);
table.put(b("row1"), b("col1"), b("val1"));
table.commitTx();
TimeUnit.SECONDS.sleep(2);
tx = txSystemClient.startShort();
table.startTx(tx);
table.put(b("row2"), b("col2"), b("val2"));
table.commitTx();
// now, we should not see first as it should have expired, but see the last one
tx = txSystemClient.startShort();
table.startTx(tx);
byte[] val = table.get(b("row1"), b("col1"));
if (val != null) {
LOG.info("Unexpected value " + Bytes.toStringBinary(val));
}
Assert.assertNull(val);
Assert.assertArrayEquals(b("val2"), table.get(b("row2"), b("col2")));
// test a table with no TTL
DatasetProperties props2 =
DatasetProperties.builder().add(Table.PROPERTY_TTL, String.valueOf(Tables.NO_TTL)).build();
getTableAdmin(CONTEXT1, noTtlTable, props2).create();
DatasetSpecification noTtlTableSpec =
DatasetSpecification.builder(noTtlTable, HBaseTable.class.getName())
.properties(props2.getProperties())
.build();
HBaseTable table2 =
new HBaseTable(
CONTEXT1, noTtlTableSpec, cConf, testHBase.getConfiguration(), hBaseTableUtil);
tx = txSystemClient.startShort();
table2.startTx(tx);
table2.put(b("row1"), b("col1"), b("val1"));
table2.commitTx();
TimeUnit.SECONDS.sleep(2);
tx = txSystemClient.startShort();
table2.startTx(tx);
table2.put(b("row2"), b("col2"), b("val2"));
table2.commitTx();
// if ttl is -1 (unlimited), it should see both
tx = txSystemClient.startShort();
table2.startTx(tx);
Assert.assertArrayEquals(b("val1"), table2.get(b("row1"), b("col1")));
Assert.assertArrayEquals(b("val2"), table2.get(b("row2"), b("col2")));
}
