com.datastax.oss.driver.api.testinfra.ccm.CcmRule Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* 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 com.datastax.oss.driver.api.testinfra.ccm;
import com.datastax.oss.driver.categories.ParallelizableTests;
import java.lang.reflect.Method;
import org.junit.AssumptionViolatedException;
import org.junit.experimental.categories.Category;
import org.junit.runner.Description;
import org.junit.runners.model.Statement;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* A rule that creates a globally shared single node Ccm cluster that is only shut down after the
* JVM exists.
*
* Note that this rule should be considered mutually exclusive with {@link CustomCcmRule}.
* Creating instances of these rules can create resource issues.
*/
public class CcmRule extends BaseCcmRule {
private static final CcmRule INSTANCE = new CcmRule();
private volatile boolean started = false;
private CcmRule() {
super(configureCcmBridge(CcmBridge.builder()).build());
}
public static CcmBridge.Builder configureCcmBridge(CcmBridge.Builder builder) {
Logger logger = LoggerFactory.getLogger(CcmRule.class);
String customizerClass =
System.getProperty(
"ccmrule.bridgecustomizer",
"com.datastax.oss.driver.api.testinfra.ccm.DefaultCcmBridgeBuilderCustomizer");
try {
Class clazz = Class.forName(customizerClass);
Method method = clazz.getMethod("configureBuilder", CcmBridge.Builder.class);
return (CcmBridge.Builder) method.invoke(null, builder);
} catch (Exception e) {
logger.warn(
"Could not find CcmRule customizer {}, will use the default CcmBridge.",
customizerClass,
e);
return builder;
}
}
@Override
protected synchronized void before() {
if (!started) {
// synchronize before so blocks on other before() call waiting to finish.
super.before();
started = true;
}
}
@Override
protected void after() {
// override after so we don't remove when done.
}
@Override
public Statement apply(Statement base, Description description) {
Category categoryAnnotation = description.getTestClass().getAnnotation(Category.class);
if (categoryAnnotation == null
|| categoryAnnotation.value().length != 1
|| categoryAnnotation.value()[0] != ParallelizableTests.class) {
return new Statement() {
@Override
public void evaluate() {
throw new AssumptionViolatedException(
String.format(
"Tests using %s must be annotated with `@Category(%s.class)`. Description: %s",
CcmRule.class.getSimpleName(),
ParallelizableTests.class.getSimpleName(),
description));
}
};
}
return super.apply(base, description);
}
public static CcmRule getInstance() {
return INSTANCE;
}
}