/*
* 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.
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package org.ops4j.pax.cdi.extension;
import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;
import javax.inject.Inject;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicReference;
import org.ops4j.pax.cdi.api.Component;
import org.ops4j.pax.cdi.api.Config;
import org.ops4j.pax.cdi.api.Greedy;
import org.ops4j.pax.cdi.api.Immediate;
import org.ops4j.pax.cdi.api.Optional;
import org.junit.Assert;
import org.junit.Test;
public class OptionalGreedyConfigTest extends AbstractTest {
@Test(timeout = 1000)
public void test() throws Exception {
startConfigAdmin();
createCdi(Hello.class);
Assert.assertEquals(1, Hello.created.get());
Assert.assertEquals(0, Hello.destroyed.get());
Assert.assertNotNull(Hello.instance.get());
Assert.assertEquals("Hello world at 0.0.0.0:8234", Hello.instance.get().sayHelloWorld());
synchronized (Hello.instance) {
// create configuration
getConfiguration(MyConfig.class).update(dictionary("host", "localhost"));
Hello.instance.wait();
Assert.assertEquals(1, Hello.destroyed.get());
Hello.instance.wait();
Assert.assertEquals(2, Hello.created.get());
Assert.assertEquals("Hello world at localhost:8234", Hello.instance.get().sayHelloWorld());
// delete configuration
getConfiguration(MyConfig.class).delete();
Hello.instance.wait();
Assert.assertEquals(2, Hello.destroyed.get());
Hello.instance.wait();
Assert.assertEquals(3, Hello.created.get());
}
}
@interface MyConfig {
String host() default "0.0.0.0";
int port() default 8234;
}
@Immediate @Component
public static class Hello {
static final AtomicInteger created = new AtomicInteger();
static final AtomicInteger destroyed = new AtomicInteger();
static final AtomicReference<Hello> instance = new AtomicReference<>();
@Inject @Optional @Config @Greedy
MyConfig config;
@PostConstruct
public void init() {
created.incrementAndGet();
instance.set(this);
System.err.println("Creating Hello instance");
synchronized (instance) {
instance.notifyAll();
}
}
@PreDestroy
public void destroy() {
destroyed.incrementAndGet();
instance.set(null);
System.err.println("Destroying Hello instance");
synchronized (instance) {
instance.notifyAll();
}
}
public String sayHelloWorld() {
return "Hello world at " + config.host() + ":" + config.port();
}
}
}