package com.datastax.driver.core;
import java.util.Collection;
import com.google.common.collect.Lists;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertTrue;
import com.datastax.driver.core.Cluster.Builder;
import com.datastax.driver.core.Metrics.Errors;
import com.datastax.driver.core.policies.DowngradingConsistencyRetryPolicy;
import static com.datastax.driver.core.TestUtils.versionCheck;
/**
* Tests the behavior of client-provided timestamps with protocol v3.
*/
public class QueryTimestampTest extends CCMBridge.PerClassSingleNodeCluster {
@Override
protected Collection<String> getTableDefinitions() {
versionCheck(2.1, 0, "This will only work with Cassandra 2.1.0");
return Lists.newArrayList("CREATE TABLE foo (k int PRIMARY KEY, v int)");
}
private volatile long timestampFromGenerator;
@Override
protected Builder configure(Builder builder) {
return builder
.withTimestampGenerator(new TimestampGenerator() {
@Override
public long next() {
return timestampFromGenerator;
}
})
.withRetryPolicy(DowngradingConsistencyRetryPolicy.INSTANCE);
}
@BeforeMethod(groups = "short")
public void cleanData() {
session.execute("TRUNCATE foo");
}
@Test(groups = "short")
public void should_use_CQL_timestamp_over_anything_else() {
timestampFromGenerator = 10;
String query = "INSERT INTO foo (k, v) VALUES (1, 1) USING TIMESTAMP 20";
session.execute(new SimpleStatement(query).setDefaultTimestamp(30));
long writeTime = session.execute("SELECT writeTime(v) FROM foo WHERE k = 1").one().getLong(0);
assertEquals(writeTime, 20);
}
@Test(groups = "short")
public void should_use_statement_timestamp_over_generator() {
timestampFromGenerator = 10;
String query = "INSERT INTO foo (k, v) VALUES (1, 1)";
session.execute(new SimpleStatement(query).setDefaultTimestamp(30));
long writeTime = session.execute("SELECT writeTime(v) FROM foo WHERE k = 1").one().getLong(0);
assertEquals(writeTime, 30);
}
@Test(groups = "short")
public void should_use_generator_timestamp_if_none_other_specified() {
timestampFromGenerator = 10;
String query = "INSERT INTO foo (k, v) VALUES (1, 1)";
session.execute(query);
long writeTime = session.execute("SELECT writeTime(v) FROM foo WHERE k = 1").one().getLong(0);
assertEquals(writeTime, 10);
}
@Test(groups = "short")
public void should_use_server_side_timestamp_if_none_specified() {
timestampFromGenerator = Long.MIN_VALUE;
long clientTime = System.currentTimeMillis() * 1000;
String query = "INSERT INTO foo (k, v) VALUES (1, 1)";
session.execute(query);
long writeTime = session.execute("SELECT writeTime(v) FROM foo WHERE k = 1").one().getLong(0);
assertTrue(writeTime >= clientTime);
}
@Test(groups = "short")
public void should_apply_statement_timestamp_only_to_batched_queries_without_timestamp() {
BatchStatement batch = new BatchStatement();
batch.add(new SimpleStatement("INSERT INTO foo (k, v) VALUES (1, 1)"));
batch.add(new SimpleStatement("INSERT INTO foo (k, v) VALUES (2, 1) USING TIMESTAMP 20"));
batch.setDefaultTimestamp(10);
session.execute(batch);
long writeTime1 = session.execute("SELECT writeTime(v) FROM foo WHERE k = 1").one().getLong(0);
long writeTime2 = session.execute("SELECT writeTime(v) FROM foo WHERE k = 2").one().getLong(0);
assertEquals(writeTime1, 10);
assertEquals(writeTime2, 20);
}
@Test(groups = "short")
public void should_apply_generator_timestamp_only_to_batched_queries_without_timestamp() {
timestampFromGenerator = 10;
BatchStatement batch = new BatchStatement();
batch.add(new SimpleStatement("INSERT INTO foo (k, v) VALUES (1, 1)"));
batch.add(new SimpleStatement("INSERT INTO foo (k, v) VALUES (2, 1) USING TIMESTAMP 20"));
session.execute(batch);
long writeTime1 = session.execute("SELECT writeTime(v) FROM foo WHERE k = 1").one().getLong(0);
long writeTime2 = session.execute("SELECT writeTime(v) FROM foo WHERE k = 2").one().getLong(0);
assertEquals(writeTime1, 10);
assertEquals(writeTime2, 20);
}
@Test(groups = "short")
public void should_apply_server_side_timestamp_only_to_batched_queries_without_timestamp() {
timestampFromGenerator = Long.MIN_VALUE;
long clientTime = System.currentTimeMillis() * 1000;
BatchStatement batch = new BatchStatement();
batch.add(new SimpleStatement("INSERT INTO foo (k, v) VALUES (1, 1)"));
batch.add(new SimpleStatement("INSERT INTO foo (k, v) VALUES (2, 1) USING TIMESTAMP 20"));
session.execute(batch);
long writeTime1 = session.execute("SELECT writeTime(v) FROM foo WHERE k = 1").one().getLong(0);
long writeTime2 = session.execute("SELECT writeTime(v) FROM foo WHERE k = 2").one().getLong(0);
assertTrue(writeTime1 >= clientTime);
assertEquals(writeTime2, 20);
}
@Test(groups = "short")
public void should_preserve_timestamp_when_retrying() {
SimpleStatement statement = new SimpleStatement("INSERT INTO foo (k, v) VALUES (1, 1)");
statement.setDefaultTimestamp(10);
// This will fail since we test against a single-host cluster. The DowngradingConsistencyRetryPolicy
// will retry it at ONE.
statement.setConsistencyLevel(ConsistencyLevel.TWO);
session.execute(statement);
Errors metrics = session.getCluster().getMetrics().getErrorMetrics();
assertEquals(metrics.getRetriesOnUnavailable().getCount(), 1);
long writeTime = session.execute("SELECT writeTime(v) FROM foo WHERE k = 1").one().getLong(0);
assertEquals(writeTime, 10);
}
}