/*
* Copyright 2014 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.data.mongodb.test.util;
import org.junit.ClassRule;
import org.junit.Rule;
import org.junit.internal.AssumptionViolatedException;
import org.junit.rules.TestRule;
import org.junit.runner.Description;
import org.junit.runners.model.Statement;
import org.springframework.data.util.Version;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import com.mongodb.BasicDBObjectBuilder;
import com.mongodb.CommandResult;
import com.mongodb.DB;
import com.mongodb.MongoClient;
/**
* {@link TestRule} verifying server tests are executed against match a given version. This one can be used as
* {@link ClassRule} eg. in context depending tests run with {@link SpringJUnit4ClassRunner} when the context would fail
* to start in case of invalid version, or as simple {@link Rule} on specific tests.
*
* @author Christoph Strobl
* @since 1.6
*/
public class MongoVersionRule implements TestRule {
private String host = "localhost";
private int port = 27017;
private final Version minVersion;
private final Version maxVersion;
private Version currentVersion;
public MongoVersionRule(Version min, Version max) {
this.minVersion = min;
this.maxVersion = max;
}
public static MongoVersionRule any() {
return new MongoVersionRule(new Version(0, 0, 0), new Version(9999, 9999, 9999));
}
public static MongoVersionRule atLeast(Version minVersion) {
return new MongoVersionRule(minVersion, new Version(9999, 9999, 9999));
}
public static MongoVersionRule atMost(Version maxVersion) {
return new MongoVersionRule(new Version(0, 0, 0), maxVersion);
}
public MongoVersionRule withServerRunningAt(String host, int port) {
this.host = host;
this.port = port;
return this;
}
@Override
public Statement apply(final Statement base, Description description) {
initCurrentVersion();
return new Statement() {
@Override
public void evaluate() throws Throwable {
if (currentVersion != null) {
if (currentVersion.isLessThan(minVersion) || currentVersion.isGreaterThan(maxVersion)) {
throw new AssumptionViolatedException(String.format(
"Expected mongodb server to be in range %s to %s but found %s", minVersion, maxVersion, currentVersion));
}
}
base.evaluate();
}
};
}
private void initCurrentVersion() {
if (currentVersion == null) {
try {
MongoClient client;
client = new MongoClient(host, port);
DB db = client.getDB("test");
CommandResult result = db.command(new BasicDBObjectBuilder().add("buildInfo", 1).get());
this.currentVersion = Version.parse(result.get("version").toString());
} catch (Exception e) {
e.printStackTrace();
}
}
}
}