/*
* 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.integration.file.filters;
import static org.hamcrest.Matchers.contains;
import static org.hamcrest.Matchers.containsInAnyOrder;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertThat;
import static org.junit.Assert.assertTrue;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Queue;
import java.util.Set;
import org.junit.Test;
import org.springframework.integration.test.util.TestUtils;
import org.springframework.util.StopWatch;
/**
* @author Gary Russell
* @since 4.0.4
*
*/
public class AcceptOnceFileListFilterTests {
@Test
// This test used to take 34 seconds to run; now 25 milliseconds.
public void testPerformance_INT3572() {
StopWatch watch = new StopWatch();
watch.start();
AcceptOnceFileListFilter<String> filter = new AcceptOnceFileListFilter<String>();
for (int i = 0; i < 100000; i++) {
filter.accept("" + i);
}
watch.stop();
assertTrue(watch.getTotalTimeMillis() < 5000);
}
@Test
@SuppressWarnings("unchecked")
public void testCapacity() {
AcceptOnceFileListFilter<String> filter = new AcceptOnceFileListFilter<String>(2);
assertTrue(filter.accept("foo"));
assertTrue(filter.accept("bar"));
assertFalse(filter.accept("foo"));
assertTrue(filter.accept("baz"));
assertTrue(filter.accept("foo"));
Queue<String> seen = TestUtils.getPropertyValue(filter, "seen", Queue.class);
assertEquals(2, seen.size());
Set<String> seenSet = TestUtils.getPropertyValue(filter, "seenSet", Set.class);
assertEquals(2, seenSet.size());
assertThat(seen, contains("baz", "foo"));
assertThat(seenSet, containsInAnyOrder("foo", "baz"));
}
@Test
public void testRollback() {
AcceptOnceFileListFilter<String> filter = new AcceptOnceFileListFilter<String>();
doTestRollback(filter);
}
@Test
public void testRollbackComposite() {
AcceptOnceFileListFilter<String> filter = new AcceptOnceFileListFilter<String>();
CompositeFileListFilter<String> composite = new CompositeFileListFilter<String>(
Collections.singletonList(filter));
doTestRollback(composite);
}
protected void doTestRollback(ReversibleFileListFilter<String> filter) {
String[] files = new String[] {"foo", "bar", "baz"};
List<String> passed = filter.filterFiles(files);
assertTrue(Arrays.equals(files, passed.toArray()));
List<String> now = filter.filterFiles(files);
assertEquals(0, now.size());
filter.rollback(passed.get(1), passed);
now = filter.filterFiles(files);
assertEquals(2, now.size());
assertEquals("bar", now.get(0));
assertEquals("baz", now.get(1));
now = filter.filterFiles(files);
assertEquals(0, now.size());
}
}