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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 org.apache.brooklyn.util.core.config;
import static org.testng.Assert.assertEquals;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.atomic.AtomicInteger;
import org.apache.brooklyn.config.ConfigKey;
import org.apache.brooklyn.core.config.ConfigKeys;
import org.apache.brooklyn.util.collections.MutableList;
import org.apache.brooklyn.util.collections.MutableMap;
import org.apache.brooklyn.util.core.config.ConfigBag;
import org.apache.brooklyn.util.core.config.ConfigBagTest;
import org.apache.brooklyn.util.exceptions.Exceptions;
import org.apache.brooklyn.util.time.Duration;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.testng.Assert;
import org.testng.annotations.Test;
public class ConfigBagTest {
@SuppressWarnings("unused")
private static final Logger log = LoggerFactory.getLogger(ConfigBagTest.class);
private static final ConfigKey<String> K1 = ConfigKeys.newStringConfigKey("k1");
private static final ConfigKey<String> K2 = ConfigKeys.newStringConfigKey("k2");
private static final ConfigKey<String> K3 = ConfigKeys.newStringConfigKey("k3");
@Test
public void testPutAndGet() {
ConfigBag bag = ConfigBag.newInstance();
bag.put(K1, "v1");
assertEquals(bag.get(K1), "v1");
}
@Test
public void testPutStringAndGet() {
ConfigBag bag = ConfigBag.newInstance();
bag.putAsStringKey(K1.getName(), "v1");
assertEquals(bag.get(K1), "v1");
}
@Test
public void testUnused() {
ConfigBag bag = ConfigBag.newInstance();
bag.put(K1, "v1");
bag.put(K2, "v2a");
assertEquals(bag.get(K1), "v1");
assertEquals(bag.getUnusedConfig().size(), 1);
assertEquals(bag.peek(K2), "v2a");
assertEquals(bag.getUnusedConfig().size(), 1);
assertEquals(bag.get(K2), "v2a");
Assert.assertTrue(bag.getUnusedConfig().isEmpty());
}
@Test
public void testOrder() {
ConfigBag bag = ConfigBag.newInstance();
bag.put(K1, "v1");
bag.put(K2, "v2");
bag.put(K3, "v3");
Assert.assertEquals(MutableList.copyOf(bag.getAllConfig().keySet()), MutableList.of(K1.getName(), K2.getName(), K3.getName()));
Assert.assertEquals(MutableList.copyOf(bag.getAllConfig().values()), MutableList.of("v1", "v2", "v3"));
}
@Test
public void testCopyOverwriteAndGet() {
ConfigBag bag1 = ConfigBag.newInstance();
bag1.put(K1, "v1");
bag1.put(K2, "v2a");
bag1.put(K3, "v3");
assertEquals(bag1.get(K1), "v1");
ConfigBag bag2 = ConfigBag.newInstanceCopying(bag1).putAll(MutableMap.of(K2, "v2b"));
assertEquals(bag1.getUnusedConfig().size(), 2);
assertEquals(bag2.getUnusedConfig().size(), 2);
assertEquals(bag2.get(K1), "v1");
assertEquals(bag1.get(K2), "v2a");
assertEquals(bag1.getUnusedConfig().size(), 1);
assertEquals(bag2.getUnusedConfig().size(), 2);
assertEquals(bag2.get(K2), "v2b");
assertEquals(bag2.getUnusedConfig().size(), 1);
assertEquals(bag2.get(K3), "v3");
assertEquals(bag2.getUnusedConfig().size(), 0);
assertEquals(bag1.getUnusedConfig().size(), 1);
}
@Test
public void testCopyExtendingAndGet() {
ConfigBag bag1 = ConfigBag.newInstance();
bag1.put(K1, "v1");
bag1.put(K2, "v2a");
bag1.put(K3, "v3");
assertEquals(bag1.get(K1), "v1");
ConfigBag bag2 = ConfigBag.newInstanceExtending(bag1, null).putAll(MutableMap.of(K2, "v2b"));
assertEquals(bag1.getUnusedConfig().size(), 2);
assertEquals(bag2.getUnusedConfig().size(), 2, "unused are: "+bag2.getUnusedConfig());
assertEquals(bag2.get(K1), "v1");
assertEquals(bag1.get(K2), "v2a");
assertEquals(bag1.getUnusedConfig().size(), 1);
assertEquals(bag2.getUnusedConfig().size(), 2);
assertEquals(bag2.get(K2), "v2b");
assertEquals(bag2.getUnusedConfig().size(), 1);
assertEquals(bag2.get(K3), "v3");
assertEquals(bag2.getUnusedConfig().size(), 0);
// when extended, the difference is that parent is also marked
assertEquals(bag1.getUnusedConfig().size(), 0);
}
@Test
public void testConcurrent() throws InterruptedException {
ConfigBag bag = ConfigBag.newInstance();
bag.put(K1, "v1");
bag.put(K2, "v2");
bag.put(K3, "v3");
runConcurrentTest(bag, 10, Duration.millis(50));
}
@Test(groups="Integration")
public void testConcurrentBig() throws InterruptedException {
ConfigBag bag = ConfigBag.newInstance();
bag.put(K1, "v1");
bag.put(K2, "v2");
bag.put(K3, "v3");
runConcurrentTest(bag, 20, Duration.seconds(5));
}
private void runConcurrentTest(final ConfigBag bag, int numThreads, Duration time) throws InterruptedException {
List<Thread> threads = MutableList.of();
final Map<Thread,Exception> exceptions = new ConcurrentHashMap<Thread,Exception>();
final AtomicInteger successes = new AtomicInteger();
for (int i=0; i<numThreads; i++) {
Thread t = new Thread() {
@Override
public void run() {
try {
while (!interrupted()) {
if (Math.random()<0.9)
bag.put(ConfigKeys.newStringConfigKey("k"+((int)(10*Math.random()))), "v"+((int)(10*Math.random())));
if (Math.random()<0.8)
bag.get(ConfigKeys.newStringConfigKey("k"+((int)(10*Math.random()))));
if (Math.random()<0.2)
bag.copy(bag);
if (Math.random()<0.6)
bag.remove(ConfigKeys.newStringConfigKey("k"+((int)(10*Math.random()))));
successes.incrementAndGet();
}
} catch (Exception e) {
exceptions.put(Thread.currentThread(), e);
Exceptions.propagateIfFatal(e);
}
}
};
t.setName("ConfigBagTest-concurrent-thread-"+i);
threads.add(t);
}
for (Thread t: threads) t.start();
time.countdownTimer().waitForExpiry();
for (Thread t: threads) t.interrupt();
for (Thread t: threads) t.join();
Assert.assertTrue(exceptions.isEmpty(), "Got "+exceptions.size()+"/"+numThreads+" exceptions ("+successes.get()+" successful): "+exceptions);
}
}