/*
* Copyright 2002-2016 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.integration.config;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotEquals;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertSame;
import static org.junit.Assert.fail;
import java.util.UUID;
import java.util.concurrent.atomic.AtomicLong;
import org.junit.Test;
import org.springframework.beans.factory.BeanDefinitionStoreException;
import org.springframework.beans.factory.support.RootBeanDefinition;
import org.springframework.context.support.GenericApplicationContext;
import org.springframework.integration.support.IdGenerators.JdkIdGenerator;
import org.springframework.integration.support.IdGenerators.SimpleIncrementingIdGenerator;
import org.springframework.integration.test.util.TestUtils;
import org.springframework.messaging.MessageHeaders;
import org.springframework.util.IdGenerator;
/**
* @author Gary Russell
* @since 3.0
*
*/
public class IdGeneratorConfigurerTests {
@Test
public void testOneBean() {
GenericApplicationContext context = new GenericApplicationContext();
context.registerBeanDefinition("bfpp", new RootBeanDefinition(DefaultConfiguringBeanFactoryPostProcessor.class));
context.registerBeanDefinition("foo", new RootBeanDefinition(MyIdGenerator.class));
context.refresh();
MessageHeaders headers = new MessageHeaders(null);
assertEquals(1, headers.getId().getMostSignificantBits());
assertEquals(2, headers.getId().getLeastSignificantBits());
context.close();
headers = new MessageHeaders(null);
assertNotEquals(1, headers.getId().getMostSignificantBits());
assertNotEquals(2, headers.getId().getLeastSignificantBits());
assertNull(TestUtils.getPropertyValue(headers, "idGenerator"));
}
@Test
public void testTwoBeans() throws Exception {
GenericApplicationContext context = new GenericApplicationContext();
context.registerBeanDefinition("bfpp", new RootBeanDefinition(DefaultConfiguringBeanFactoryPostProcessor.class));
context.registerBeanDefinition("foo", new RootBeanDefinition(JdkIdGenerator.class));
context.registerBeanDefinition("bar", new RootBeanDefinition(SimpleIncrementingIdGenerator.class));
context.refresh();
// multiple beans are ignored with warning
MessageHeaders headers = new MessageHeaders(null);
assertNull(TestUtils.getPropertyValue(headers, "idGenerator"));
context.close();
}
@Test
public void testNoBeans() throws Exception {
GenericApplicationContext context = new GenericApplicationContext();
context.registerBeanDefinition("bfpp", new RootBeanDefinition(DefaultConfiguringBeanFactoryPostProcessor.class));
context.refresh();
MessageHeaders headers = new MessageHeaders(null);
assertNull(TestUtils.getPropertyValue(headers, "idGenerator"));
context.close();
}
@Test
public void testTwoContextsSameClass() throws Exception {
GenericApplicationContext context = new GenericApplicationContext();
context.registerBeanDefinition("bfpp", new RootBeanDefinition(DefaultConfiguringBeanFactoryPostProcessor.class));
context.registerBeanDefinition("foo", new RootBeanDefinition(MyIdGenerator.class));
context.refresh();
MessageHeaders headers = new MessageHeaders(null);
assertEquals(1, headers.getId().getMostSignificantBits());
assertEquals(2, headers.getId().getLeastSignificantBits());
GenericApplicationContext context2 = new GenericApplicationContext();
context2.registerBeanDefinition("bfpp", new RootBeanDefinition(DefaultConfiguringBeanFactoryPostProcessor.class));
context2.registerBeanDefinition("foo", new RootBeanDefinition(MyIdGenerator.class));
context2.refresh();
context.close();
context2.close();
headers = new MessageHeaders(null);
assertNotEquals(1, headers.getId().getMostSignificantBits());
assertNotEquals(2, headers.getId().getLeastSignificantBits());
assertNull(TestUtils.getPropertyValue(headers, "idGenerator"));
}
@Test
public void testTwoContextsSameClassFirstDestroyed() throws Exception {
GenericApplicationContext context = new GenericApplicationContext();
context.registerBeanDefinition("bfpp", new RootBeanDefinition(DefaultConfiguringBeanFactoryPostProcessor.class));
context.registerBeanDefinition("foo", new RootBeanDefinition(MyIdGenerator.class));
context.refresh();
MessageHeaders headers = new MessageHeaders(null);
assertEquals(1, headers.getId().getMostSignificantBits());
assertEquals(2, headers.getId().getLeastSignificantBits());
GenericApplicationContext context2 = new GenericApplicationContext();
context2.registerBeanDefinition("bfpp", new RootBeanDefinition(DefaultConfiguringBeanFactoryPostProcessor.class));
context2.registerBeanDefinition("foo", new RootBeanDefinition(MyIdGenerator.class));
context2.refresh();
context.close();
// we should still use the custom strategy
headers = new MessageHeaders(null);
assertEquals(1, headers.getId().getMostSignificantBits());
assertEquals(2, headers.getId().getLeastSignificantBits());
context2.close();
// back to default
headers = new MessageHeaders(null);
assertNotEquals(1, headers.getId().getMostSignificantBits());
assertNotEquals(2, headers.getId().getLeastSignificantBits());
assertNull(TestUtils.getPropertyValue(headers, "idGenerator"));
}
@Test
public void testTwoContextDifferentClass() {
GenericApplicationContext context = new GenericApplicationContext();
context.registerBeanDefinition("bfpp", new RootBeanDefinition(DefaultConfiguringBeanFactoryPostProcessor.class));
context.registerBeanDefinition("foo", new RootBeanDefinition(MyIdGenerator.class));
context.refresh();
MessageHeaders headers = new MessageHeaders(null);
assertEquals(1, headers.getId().getMostSignificantBits());
assertEquals(2, headers.getId().getLeastSignificantBits());
GenericApplicationContext context2 = new GenericApplicationContext();
context2.registerBeanDefinition("bfpp", new RootBeanDefinition(DefaultConfiguringBeanFactoryPostProcessor.class));
context2.registerBeanDefinition("foo", new RootBeanDefinition(MyIdGenerator2.class));
try {
context2.refresh();
fail("Expected exception");
}
catch (BeanDefinitionStoreException e) {
assertEquals("'MessageHeaders.idGenerator' has already been set and can not be set again",
e.getMessage());
}
context.close();
context2.close();
}
@Test
public void testJdk() {
GenericApplicationContext context = new GenericApplicationContext();
context.registerBeanDefinition("bfpp", new RootBeanDefinition(DefaultConfiguringBeanFactoryPostProcessor.class));
context.registerBeanDefinition("foo", new RootBeanDefinition(JdkIdGenerator.class));
context.refresh();
MessageHeaders headers = new MessageHeaders(null);
assertSame(context.getBean(IdGenerator.class), TestUtils.getPropertyValue(headers, "idGenerator"));
context.close();
}
@Test
public void testIncrementing() {
GenericApplicationContext context = new GenericApplicationContext();
context.registerBeanDefinition("bfpp", new RootBeanDefinition(DefaultConfiguringBeanFactoryPostProcessor.class));
context.registerBeanDefinition("foo", new RootBeanDefinition(SimpleIncrementingIdGenerator.class));
context.refresh();
IdGenerator idGenerator = context.getBean(IdGenerator.class);
MessageHeaders headers = new MessageHeaders(null);
assertEquals(0, headers.getId().getMostSignificantBits());
assertEquals(1, headers.getId().getLeastSignificantBits());
headers = new MessageHeaders(null);
assertEquals(0, headers.getId().getMostSignificantBits());
assertEquals(2, headers.getId().getLeastSignificantBits());
AtomicLong bottomBits = TestUtils.getPropertyValue(idGenerator, "bottomBits", AtomicLong.class);
bottomBits.set(0xffffffff);
headers = new MessageHeaders(null);
assertEquals(1, headers.getId().getMostSignificantBits());
assertEquals(0, headers.getId().getLeastSignificantBits());
headers = new MessageHeaders(null);
assertEquals(1, headers.getId().getMostSignificantBits());
assertEquals(1, headers.getId().getLeastSignificantBits());
context.close();
}
public static class MyIdGenerator implements IdGenerator {
@Override
public UUID generateId() {
return new UUID(1, 2);
}
};
public static class MyIdGenerator2 implements IdGenerator {
@Override
public UUID generateId() {
return new UUID(3, 4);
}
};
}