/*
* Copyright 2012-2016 the original author or authors.
*
* Licensed 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.springframework.boot.autoconfigure.data.cassandra;
import com.datastax.driver.core.Cluster;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.junit.Assume;
import org.junit.rules.TestRule;
import org.junit.runner.Description;
import org.junit.runners.model.Statement;
/**
* {@link TestRule} for working with an optional Cassandra server.
*
* @author Stephane Nicoll
*/
public class CassandraTestServer implements TestRule {
private static final Log logger = LogFactory.getLog(CassandraTestServer.class);
private Cluster cluster;
@Override
public Statement apply(Statement base, Description description) {
try {
this.cluster = newCluster();
return new CassandraStatement(base, this.cluster);
}
catch (Exception ex) {
logger.error("No Cassandra server available", ex);
return new SkipStatement();
}
}
private Cluster newCluster() {
Cluster cluster = Cluster.builder().addContactPoint("localhost").build();
testCluster(cluster);
return cluster;
}
private void testCluster(Cluster cluster) {
cluster.connect().close();
}
/**
* @return the cluster if any
*/
public Cluster getCluster() {
return this.cluster;
}
private static class CassandraStatement extends Statement {
private final Statement base;
private final Cluster cluster;
CassandraStatement(Statement base, Cluster cluster) {
this.base = base;
this.cluster = cluster;
}
@Override
public void evaluate() throws Throwable {
try {
this.base.evaluate();
}
finally {
this.cluster.closeAsync();
}
}
}
private static class SkipStatement extends Statement {
@Override
public void evaluate() throws Throwable {
Assume.assumeTrue("Skipping test due to Cassandra not being available",
false);
}
}
}