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* distributed with this work for additional information
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* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
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package org.apache.cassandra.triggers;
import java.net.InetAddress;
import java.nio.ByteBuffer;
import java.util.Collection;
import java.util.Collections;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.Test;
import org.apache.cassandra.SchemaLoader;
import org.apache.cassandra.config.Schema;
import org.apache.cassandra.cql3.QueryProcessor;
import org.apache.cassandra.cql3.UntypedResultSet;
import org.apache.cassandra.db.ArrayBackedSortedColumns;
import org.apache.cassandra.db.Column;
import org.apache.cassandra.db.ColumnFamily;
import org.apache.cassandra.db.ConsistencyLevel;
import org.apache.cassandra.db.RowMutation;
import org.apache.cassandra.exceptions.RequestExecutionException;
import org.apache.cassandra.service.StorageService;
import org.apache.cassandra.thrift.Cassandra;
import org.apache.cassandra.thrift.ColumnOrSuperColumn;
import org.apache.cassandra.thrift.ColumnParent;
import org.apache.cassandra.thrift.InvalidRequestException;
import org.apache.cassandra.thrift.Mutation;
import org.apache.cassandra.thrift.TFramedTransportFactory;
import org.apache.cassandra.thrift.ThriftServer;
import org.apache.cassandra.utils.ByteBufferUtil;
import org.apache.thrift.protocol.TBinaryProtocol;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.apache.cassandra.utils.ByteBufferUtil.bytes;
public class TriggersTest extends SchemaLoader
{
private static boolean triggerCreated = false;
private static ThriftServer thriftServer;
private static String ksName = "triggers_test_ks";
private static String cfName = "test_table";
private static String otherCf = "other_table";
@Before
public void setup() throws Exception
{
StorageService.instance.initServer(0);
if (thriftServer == null || ! thriftServer.isRunning())
{
thriftServer = new ThriftServer(InetAddress.getLocalHost(), 9170);
thriftServer.start();
}
String cql = String.format("CREATE KEYSPACE IF NOT EXISTS %s " +
"WITH REPLICATION = {'class': 'SimpleStrategy', 'replication_factor': 1}",
ksName);
QueryProcessor.process(cql, ConsistencyLevel.ONE);
cql = String.format("CREATE TABLE IF NOT EXISTS %s.%s (k int, v1 int, v2 int, PRIMARY KEY (k))", ksName, cfName);
QueryProcessor.process(cql, ConsistencyLevel.ONE);
cql = String.format("CREATE TABLE IF NOT EXISTS %s.%s (k int, v1 int, v2 int, PRIMARY KEY (k))", ksName, otherCf);
QueryProcessor.process(cql, ConsistencyLevel.ONE);
// no conditional execution of create trigger stmt yet
if (! triggerCreated)
{
cql = String.format("CREATE TRIGGER trigger_1 ON %s.%s USING '%s'",
ksName, cfName, TestTrigger.class.getName());
QueryProcessor.process(cql, ConsistencyLevel.ONE);
triggerCreated = true;
}
}
@AfterClass
public static void teardown()
{
if (thriftServer != null && thriftServer.isRunning())
{
thriftServer.stop();
}
}
@Test
public void executeTriggerOnCqlInsert() throws Exception
{
String cql = String.format("INSERT INTO %s.%s (k, v1) VALUES (0, 0)", ksName, cfName);
QueryProcessor.process(cql, ConsistencyLevel.ONE);
assertUpdateIsAugmented(0);
}
@Test
public void executeTriggerOnCqlBatchInsert() throws Exception
{
String cql = String.format("BEGIN BATCH " +
" INSERT INTO %s.%s (k, v1) VALUES (1, 1); " +
"APPLY BATCH",
ksName, cfName);
QueryProcessor.process(cql, ConsistencyLevel.ONE);
assertUpdateIsAugmented(1);
}
@Test
public void executeTriggerOnThriftInsert() throws Exception
{
Cassandra.Client client = new Cassandra.Client(
new TBinaryProtocol(
new TFramedTransportFactory().openTransport(
InetAddress.getLocalHost().getHostName(), 9170)));
client.set_keyspace(ksName);
client.insert(bytes(2),
new ColumnParent(cfName),
getColumnForInsert("v1", 2),
org.apache.cassandra.thrift.ConsistencyLevel.ONE);
assertUpdateIsAugmented(2);
}
@Test
public void executeTriggerOnThriftBatchUpdate() throws Exception
{
Cassandra.Client client = new Cassandra.Client(
new TBinaryProtocol(
new TFramedTransportFactory().openTransport(
InetAddress.getLocalHost().getHostName(), 9170)));
client.set_keyspace(ksName);
Mutation mutation = new Mutation();
ColumnOrSuperColumn cosc = new ColumnOrSuperColumn();
cosc.setColumn(getColumnForInsert("v1", 3));
mutation.setColumn_or_supercolumn(cosc);
client.batch_mutate(
Collections.singletonMap(bytes(3),
Collections.singletonMap(cfName,
Collections.singletonList(mutation))),
org.apache.cassandra.thrift.ConsistencyLevel.ONE);
assertUpdateIsAugmented(3);
}
@Test
public void executeTriggerOnCqlInsertWithConditions() throws Exception
{
String cql = String.format("INSERT INTO %s.%s (k, v1) VALUES (4, 4) IF NOT EXISTS", ksName, cfName);
QueryProcessor.process(cql, ConsistencyLevel.ONE);
assertUpdateIsAugmented(4);
}
@Test
public void executeTriggerOnCqlBatchWithConditions() throws Exception
{
String cql = String.format("BEGIN BATCH " +
" INSERT INTO %1$s.%2$s (k, v1) VALUES (5, 5) IF NOT EXISTS; " +
" INSERT INTO %1$s.%2$s (k, v1) VALUES (5, 5); " +
"APPLY BATCH",
ksName, cfName);
QueryProcessor.process(cql, ConsistencyLevel.ONE);
assertUpdateIsAugmented(5);
}
@Test
public void executeTriggerOnThriftCASOperation() throws Exception
{
Cassandra.Client client = new Cassandra.Client(
new TBinaryProtocol(
new TFramedTransportFactory().openTransport(
InetAddress.getLocalHost().getHostName(), 9170)));
client.set_keyspace(ksName);
client.cas(bytes(6),
cfName,
Collections.<org.apache.cassandra.thrift.Column>emptyList(),
Collections.singletonList(getColumnForInsert("v1", 6)),
org.apache.cassandra.thrift.ConsistencyLevel.LOCAL_SERIAL,
org.apache.cassandra.thrift.ConsistencyLevel.ONE);
assertUpdateIsAugmented(6);
}
// Unfortunately, an IRE thrown from StorageProxy.cas
// results in a RuntimeException from QueryProcessor.process
@Test(expected=RuntimeException.class)
public void onCqlUpdateWithConditionsRejectGeneratedUpdatesForDifferentPartition() throws Exception
{
String cf = "cf" + System.nanoTime();
try
{
setupTableWithTrigger(cf, CrossPartitionTrigger.class);
String cql = String.format("INSERT INTO %s.%s (k, v1) VALUES (7, 7) IF NOT EXISTS", ksName, cf);
QueryProcessor.process(cql, ConsistencyLevel.ONE);
}
finally
{
assertUpdateNotExecuted(cf, 7);
}
}
// Unfortunately, an IRE thrown from StorageProxy.cas
// results in a RuntimeException from QueryProcessor.process
@Test(expected=RuntimeException.class)
public void onCqlUpdateWithConditionsRejectGeneratedUpdatesForDifferentTable() throws Exception
{
String cf = "cf" + System.nanoTime();
try
{
setupTableWithTrigger(cf, CrossTableTrigger.class);
String cql = String.format("INSERT INTO %s.%s (k, v1) VALUES (8, 8) IF NOT EXISTS", ksName, cf);
QueryProcessor.process(cql, ConsistencyLevel.ONE);
}
finally
{
assertUpdateNotExecuted(cf, 7);
}
}
@Test(expected=InvalidRequestException.class)
public void onThriftCASRejectGeneratedUpdatesForDifferentPartition() throws Exception
{
String cf = "cf" + System.nanoTime();
try
{
setupTableWithTrigger(cf, CrossPartitionTrigger.class);
Cassandra.Client client = new Cassandra.Client(
new TBinaryProtocol(
new TFramedTransportFactory().openTransport(
InetAddress.getLocalHost().getHostName(), 9170)));
client.set_keyspace(ksName);
client.cas(bytes(9),
cf,
Collections.<org.apache.cassandra.thrift.Column>emptyList(),
Collections.singletonList(getColumnForInsert("v1", 9)),
org.apache.cassandra.thrift.ConsistencyLevel.LOCAL_SERIAL,
org.apache.cassandra.thrift.ConsistencyLevel.ONE);
}
finally
{
assertUpdateNotExecuted(cf, 9);
}
}
@Test(expected=InvalidRequestException.class)
public void onThriftCASRejectGeneratedUpdatesForDifferentCF() throws Exception
{
String cf = "cf" + System.nanoTime();
try
{
setupTableWithTrigger(cf, CrossTableTrigger.class);
Cassandra.Client client = new Cassandra.Client(
new TBinaryProtocol(
new TFramedTransportFactory().openTransport(
InetAddress.getLocalHost().getHostName(), 9170)));
client.set_keyspace(ksName);
client.cas(bytes(10),
cf,
Collections.<org.apache.cassandra.thrift.Column>emptyList(),
Collections.singletonList(getColumnForInsert("v1", 10)),
org.apache.cassandra.thrift.ConsistencyLevel.LOCAL_SERIAL,
org.apache.cassandra.thrift.ConsistencyLevel.ONE);
}
finally
{
assertUpdateNotExecuted(cf, 10);
}
}
private void setupTableWithTrigger(String cf, Class<? extends ITrigger> triggerImpl)
throws RequestExecutionException
{
String cql = String.format("CREATE TABLE IF NOT EXISTS %s.%s (k int, v1 int, v2 int, PRIMARY KEY (k))", ksName, cf);
QueryProcessor.process(cql, ConsistencyLevel.ONE);
// no conditional execution of create trigger stmt yet
cql = String.format("CREATE TRIGGER trigger_1 ON %s.%s USING '%s'",
ksName, cf, triggerImpl.getName());
QueryProcessor.process(cql, ConsistencyLevel.ONE);
}
private void assertUpdateIsAugmented(int key)
{
UntypedResultSet rs = QueryProcessor.processInternal(
String.format("SELECT * FROM %s.%s WHERE k=%s", ksName, cfName, key));
assertTrue(String.format("Expected value (%s) for augmented cell v2 was not found", key), rs.one().has("v2"));
assertEquals(999, rs.one().getInt("v2"));
}
private void assertUpdateNotExecuted(String cf, int key)
{
UntypedResultSet rs = QueryProcessor.processInternal(
String.format("SELECT * FROM %s.%s WHERE k=%s", ksName, cf, key));
assertTrue(rs.isEmpty());
}
private org.apache.cassandra.thrift.Column getColumnForInsert(String columnName, int value)
{
org.apache.cassandra.thrift.Column column = new org.apache.cassandra.thrift.Column();
column.setName(Schema.instance.getCFMetaData(ksName, cfName).comparator.fromString(columnName));
column.setValue(bytes(value));
column.setTimestamp(System.currentTimeMillis());
return column;
}
public static class TestTrigger implements ITrigger
{
public Collection<RowMutation> augment(ByteBuffer key, ColumnFamily update)
{
ColumnFamily extraUpdate = update.cloneMeShallow(ArrayBackedSortedColumns.factory, false);
extraUpdate.addColumn(new Column(update.metadata().comparator.fromString("v2"),
bytes(999)));
return Collections.singletonList(new RowMutation(ksName, key, extraUpdate));
}
}
public static class CrossPartitionTrigger implements ITrigger
{
public Collection<RowMutation> augment(ByteBuffer key, ColumnFamily update)
{
ColumnFamily extraUpdate = update.cloneMeShallow(ArrayBackedSortedColumns.factory, false);
extraUpdate.addColumn(new Column(update.metadata().comparator.fromString("v2"),
bytes(999)));
int newKey = ByteBufferUtil.toInt(key) + 1000;
return Collections.singletonList(new RowMutation(ksName, bytes(newKey), extraUpdate));
}
}
public static class CrossTableTrigger implements ITrigger
{
public Collection<RowMutation> augment(ByteBuffer key, ColumnFamily update)
{
ColumnFamily extraUpdate = ArrayBackedSortedColumns.factory.create(ksName, otherCf);
extraUpdate.addColumn(new Column(extraUpdate.metadata().comparator.fromString("v2"),
bytes(999)));
return Collections.singletonList(new RowMutation(ksName, key, extraUpdate));
}
}
}