/*
* Copyright Terracotta, Inc.
*
* 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.ehcache.impl.persistence;
import org.ehcache.CachePersistenceException;
import org.ehcache.core.spi.service.LocalPersistenceService;
import org.ehcache.impl.config.persistence.DefaultPersistenceConfiguration;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
import org.junit.rules.TemporaryFolder;
import java.io.File;
import java.io.IOException;
import static org.ehcache.impl.internal.util.FileExistenceMatchers.containsCacheDirectory;
import static org.ehcache.impl.internal.util.FileExistenceMatchers.isLocked;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.is;
import static org.hamcrest.Matchers.not;
import static org.junit.Assert.fail;
import static org.junit.Assume.assumeTrue;
public class DefaultLocalPersistenceServiceTest {
@Rule
public final ExpectedException expectedException = ExpectedException.none();
@Rule
public final TemporaryFolder folder = new TemporaryFolder();
private File testFolder;
@Before
public void setup() throws IOException {
testFolder = folder.newFolder("testFolder");
}
@Test
public void testFailsIfDirectoryExistsButNotWritable() throws IOException {
assumeTrue(testFolder.setWritable(false));
try {
try {
final DefaultLocalPersistenceService service = new DefaultLocalPersistenceService(new DefaultPersistenceConfiguration(testFolder));
service.start(null);
fail("Expected IllegalArgumentException");
} catch(IllegalArgumentException e) {
assertThat(e.getMessage(), equalTo("Location isn't writable: " + testFolder.getAbsolutePath()));
}
} finally {
testFolder.setWritable(true);
}
}
@Test
public void testFailsIfFileExistsButIsNotDirectory() throws IOException {
File f = folder.newFile("testFailsIfFileExistsButIsNotDirectory");
try {
final DefaultLocalPersistenceService service = new DefaultLocalPersistenceService(new DefaultPersistenceConfiguration(f));
service.start(null);
fail("Expected IllegalArgumentException");
} catch(IllegalArgumentException e) {
assertThat(e.getMessage(), equalTo("Location is not a directory: " + f.getAbsolutePath()));
}
}
@Test
public void testFailsIfDirectoryDoesNotExistsAndIsNotCreated() throws IOException {
assumeTrue(testFolder.setWritable(false));
try {
File f = new File(testFolder, "notallowed");
try {
final DefaultLocalPersistenceService service = new DefaultLocalPersistenceService(new DefaultPersistenceConfiguration(f));
service.start(null);
fail("Expected IllegalArgumentException");
} catch(IllegalArgumentException e) {
assertThat(e.getMessage(), equalTo("Directory couldn't be created: " + f.getAbsolutePath()));
}
} finally {
testFolder.setWritable(true);
}
}
@Test
public void testLocksDirectoryAndUnlocks() throws IOException {
final DefaultLocalPersistenceService service = new DefaultLocalPersistenceService(new DefaultPersistenceConfiguration(testFolder));
service.start(null);
assertThat(service.getLockFile().exists(), is(true));
service.stop();
assertThat(service.getLockFile().exists(), is(false));
}
@Test
public void testPhysicalDestroy() throws IOException, CachePersistenceException {
final File f = folder.newFolder("testPhysicalDestroy");
final DefaultLocalPersistenceService service = new DefaultLocalPersistenceService(new DefaultPersistenceConfiguration(f));
service.start(null);
assertThat(service.getLockFile().exists(), is(true));
assertThat(f, isLocked());
LocalPersistenceService.SafeSpaceIdentifier id = service.createSafeSpaceIdentifier("test", "test");
service.createSafeSpace(id);
assertThat(f, containsCacheDirectory("test", "test"));
// try to destroy the physical space without the logical id
LocalPersistenceService.SafeSpaceIdentifier newId = service.createSafeSpaceIdentifier("test", "test");
service.destroySafeSpace(newId, false);
assertThat(f, not(containsCacheDirectory("test", "test")));
service.stop();
assertThat(f, not(isLocked()));
}
@Test
public void testExclusiveLock() throws IOException {
DefaultLocalPersistenceService service1 = new DefaultLocalPersistenceService(new DefaultPersistenceConfiguration(testFolder));
DefaultLocalPersistenceService service2 = new DefaultLocalPersistenceService(new DefaultPersistenceConfiguration(testFolder));
service1.start(null);
// We should not be able to lock the same directory twice
// And we should receive a meaningful exception about it
expectedException.expectMessage("Couldn't lock rootDir: " + testFolder.getAbsolutePath());
service2.start(null);
}
}