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* Licensed to the Apache Software Foundation (ASF) under one
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* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* 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,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.cassandra.cql3;
import java.nio.ByteBuffer;
import java.util.Collection;
import java.util.Collections;
import org.apache.cassandra.config.CFMetaData;
import org.apache.cassandra.config.Schema;
import org.apache.cassandra.config.TriggerDefinition;
import org.apache.cassandra.db.ColumnFamily;
import org.apache.cassandra.db.Mutation;
import org.apache.cassandra.triggers.ITrigger;
import org.junit.Test;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
public class CreateTriggerStatementTest extends CQLTester
{
@Test
public void testCreateTrigger() throws Throwable
{
createTable("CREATE TABLE %s (a int, b int, c int, PRIMARY KEY (a))");
execute("CREATE TRIGGER trigger_1 ON %s USING '" + TestTrigger.class.getName() + "'");
assertTriggerExists("trigger_1", TestTrigger.class);
execute("CREATE TRIGGER trigger_2 ON %s USING '" + TestTrigger.class.getName() + "'");
assertTriggerExists("trigger_2", TestTrigger.class);
assertInvalid("CREATE TRIGGER trigger_1 ON %s USING '" + TestTrigger.class.getName() + "'");
execute("CREATE TRIGGER \"Trigger 3\" ON %s USING '" + TestTrigger.class.getName() + "'");
assertTriggerExists("Trigger 3", TestTrigger.class);
}
@Test
public void testCreateTriggerIfNotExists() throws Throwable
{
createTable("CREATE TABLE %s (a int, b int, c int, PRIMARY KEY (a, b))");
execute("CREATE TRIGGER IF NOT EXISTS trigger_1 ON %s USING '" + TestTrigger.class.getName() + "'");
assertTriggerExists("trigger_1", TestTrigger.class);
execute("CREATE TRIGGER IF NOT EXISTS trigger_1 ON %s USING '" + TestTrigger.class.getName() + "'");
assertTriggerExists("trigger_1", TestTrigger.class);
}
@Test
public void testDropTrigger() throws Throwable
{
createTable("CREATE TABLE %s (a int, b int, c int, PRIMARY KEY (a))");
execute("CREATE TRIGGER trigger_1 ON %s USING '" + TestTrigger.class.getName() + "'");
assertTriggerExists("trigger_1", TestTrigger.class);
execute("DROP TRIGGER trigger_1 ON %s");
assertTriggerDoesNotExists("trigger_1", TestTrigger.class);
execute("CREATE TRIGGER trigger_1 ON %s USING '" + TestTrigger.class.getName() + "'");
assertTriggerExists("trigger_1", TestTrigger.class);
assertInvalid("DROP TRIGGER trigger_2 ON %s");
execute("CREATE TRIGGER \"Trigger 3\" ON %s USING '" + TestTrigger.class.getName() + "'");
assertTriggerExists("Trigger 3", TestTrigger.class);
execute("DROP TRIGGER \"Trigger 3\" ON %s");
assertTriggerDoesNotExists("Trigger 3", TestTrigger.class);
}
@Test
public void testDropTriggerIfExists() throws Throwable
{
createTable("CREATE TABLE %s (a int, b int, c int, PRIMARY KEY (a))");
execute("DROP TRIGGER IF EXISTS trigger_1 ON %s");
assertTriggerDoesNotExists("trigger_1", TestTrigger.class);
execute("CREATE TRIGGER trigger_1 ON %s USING '" + TestTrigger.class.getName() + "'");
assertTriggerExists("trigger_1", TestTrigger.class);
execute("DROP TRIGGER IF EXISTS trigger_1 ON %s");
assertTriggerDoesNotExists("trigger_1", TestTrigger.class);
}
private void assertTriggerExists(String name, Class<?> clazz)
{
CFMetaData cfm = Schema.instance.getCFMetaData(keyspace(), currentTable()).copy();
assertTrue("the trigger does not exist", cfm.containsTriggerDefinition(TriggerDefinition.create(name,
clazz.getName())));
}
private void assertTriggerDoesNotExists(String name, Class<?> clazz)
{
CFMetaData cfm = Schema.instance.getCFMetaData(keyspace(), currentTable()).copy();
assertFalse("the trigger exists", cfm.containsTriggerDefinition(TriggerDefinition.create(name,
clazz.getName())));
}
public static class TestTrigger implements ITrigger
{
public Collection<Mutation> augment(ByteBuffer key, ColumnFamily update)
{
return Collections.emptyList();
}
}
}