/*
* Copyright 2012-2017 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.test.autoconfigure.data.neo4j;
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;
import org.neo4j.ogm.config.Configuration;
import org.neo4j.ogm.session.SessionFactory;
/**
* {@link TestRule} for working with an optional Neo4j server running on localhost. Make
* sure to disable authentication if you haven't done so already.
*
* @author EddĂș MelĂ©ndez
* @author Stephane Nicoll
*/
public class Neo4jTestServer implements TestRule {
private static final Log logger = LogFactory.getLog(Neo4jTestServer.class);
private SessionFactory sessionFactory;
private String[] packages;
public Neo4jTestServer(String[] packages) {
this.packages = packages;
}
@Override
public Statement apply(Statement base, Description description) {
try {
this.sessionFactory = createSessionFactory();
return new Neo4jStatement(base, this.sessionFactory);
}
catch (Exception ex) {
logger.error("No Neo4j server available", ex);
return new SkipStatement();
}
}
public SessionFactory getSessionFactory() {
return this.sessionFactory;
}
private SessionFactory createSessionFactory() {
Configuration configuration = new Configuration.Builder()
.uri("bolt://localhost:7687").build();
SessionFactory sessionFactory = new SessionFactory(configuration, this.packages);
testConnection(sessionFactory);
return sessionFactory;
}
private void testConnection(SessionFactory sessionFactory) {
sessionFactory.openSession().beginTransaction().close();
}
private static class Neo4jStatement extends Statement {
private final Statement base;
private final SessionFactory sessionFactory;
Neo4jStatement(Statement base, SessionFactory sessionFactory) {
this.base = base;
this.sessionFactory = sessionFactory;
}
@Override
public void evaluate() throws Throwable {
try {
this.base.evaluate();
}
finally {
try {
this.sessionFactory.close();
}
catch (Exception ex) {
logger.warn("Exception while trying to cleanup neo4j resource", ex);
}
}
}
}
private static class SkipStatement extends Statement {
@Override
public void evaluate() throws Throwable {
Assume.assumeTrue("Skipping test due to Neo4j SessionFactory"
+ " not being available", false);
}
}
}