/*
* Copyright 2002-2011 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.aggregator;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import org.junit.Test;
import org.springframework.messaging.Message;
import org.springframework.integration.store.MessageGroup;
import org.springframework.integration.store.SimpleMessageGroup;
import org.springframework.integration.support.MessageBuilder;
/**
* @author Mark Fisher
* @author Iwein Fuld
*/
public class SequenceSizeReleaseStrategyTests {
@Test
public void testIncompleteList() {
Message<String> message = MessageBuilder.withPayload("test1").setSequenceSize(2).build();
SimpleMessageGroup messages = new SimpleMessageGroup("FOO");
messages.add(message);
SequenceSizeReleaseStrategy releaseStrategy = new SequenceSizeReleaseStrategy();
assertFalse(releaseStrategy.canRelease(messages));
}
@Test
public void testCompleteList() {
Message<String> message1 = MessageBuilder.withPayload("test1").setSequenceSize(2).build();
Message<String> message2 = MessageBuilder.withPayload("test2").setSequenceSize(2).build();
SimpleMessageGroup messages = new SimpleMessageGroup("FOO");
messages.add(message1);
messages.add(message2);
SequenceSizeReleaseStrategy releaseStrategy = new SequenceSizeReleaseStrategy();
assertTrue(releaseStrategy.canRelease(messages));
}
@Test
public void testEmptyList() {
SequenceSizeReleaseStrategy releaseStrategy = new SequenceSizeReleaseStrategy();
assertTrue(releaseStrategy.canRelease(new SimpleMessageGroup("FOO")));
}
@Test
public void testEmptyGroup() {
SequenceSizeReleaseStrategy releaseStrategy = new SequenceSizeReleaseStrategy();
releaseStrategy.setReleasePartialSequences(true);
SimpleMessageGroup messages = new SimpleMessageGroup("FOO");
Message<String> message = MessageBuilder.withPayload("test1").setSequenceSize(1).build();
messages.add(message);
messages.remove(message);
assertTrue(releaseStrategy.canRelease(messages));
}
@Test
public void shouldReleaseHeadOfSequenceDeliveredInOrder() {
SequenceSizeReleaseStrategy releaseStrategy = new SequenceSizeReleaseStrategy();
releaseStrategy.setReleasePartialSequences(true);
SimpleMessageGroup messages = new SimpleMessageGroup("FOO");
assertTrue(releaseStrategy.canRelease(groupWithFirstMessagesOfIncompleteSequence(messages)));
}
private SimpleMessageGroup groupWithFirstMessagesOfIncompleteSequence(SimpleMessageGroup messages) {
Message<String> message1 = MessageBuilder.withPayload("test1").setSequenceSize(3).setSequenceNumber(1).build();
Message<String> message2 = MessageBuilder.withPayload("test2").setSequenceSize(3).setSequenceNumber(2).build();
messages.add(message1);
messages.add(message2);
return messages;
}
@Test
public void shouldReleaseHeadOfSequenceDeliveredOutOfOrder() {
SequenceSizeReleaseStrategy releaseStrategy = new SequenceSizeReleaseStrategy();
releaseStrategy.setReleasePartialSequences(true);
boolean canRelease = releaseStrategy.canRelease(groupWithLastAndFirstMessagesOfIncompleteSequence());
assertTrue(canRelease);
}
private MessageGroup groupWithLastAndFirstMessagesOfIncompleteSequence() {
SimpleMessageGroup messages = new SimpleMessageGroup("FOO");
Message<String> message1 = MessageBuilder.withPayload("test1").setSequenceSize(3).setSequenceNumber(3).build();
Message<String> message2 = MessageBuilder.withPayload("test2").setSequenceSize(3).setSequenceNumber(1).build();
messages.add(message1);
messages.add(message2);
return messages;
}
@Test
public void shouldPartiallyReleaseAsEarlyAsPossible() {
SequenceSizeReleaseStrategy releaseStrategy = new SequenceSizeReleaseStrategy();
releaseStrategy.setReleasePartialSequences(true);
SimpleMessageGroup messages = new SimpleMessageGroup("FOO");
Message<String> message1 = MessageBuilder.withPayload("test1").setSequenceSize(5).setSequenceNumber(1).build();
Message<String> message2 = MessageBuilder.withPayload("test2").setSequenceSize(5).setSequenceNumber(2).build();
Message<String> message3 = MessageBuilder.withPayload("test3").setSequenceSize(5).setSequenceNumber(3).build();
Message<String> message4 = MessageBuilder.withPayload("test4").setSequenceSize(5).setSequenceNumber(4).build();
Message<String> message5 = MessageBuilder.withPayload("test5").setSequenceSize(5).setSequenceNumber(5).build();
messages.add(message5);
assertFalse(releaseStrategy.canRelease(messages));
messages.add(message1);
assertTrue(releaseStrategy.canRelease(messages));
messages.add(message2);
assertTrue(releaseStrategy.canRelease(messages));
messages.add(message3);
assertTrue(releaseStrategy.canRelease(messages));
messages.add(message4);
assertTrue(releaseStrategy.canRelease(messages));
}
}