/*
* 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.
*/
package org.apache.accumulo.server;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.UUID;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.LocalFileSystem;
import org.apache.hadoop.fs.Path;
import org.junit.Assert;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.TemporaryFolder;
/**
*
*/
public class ServerConstantsTest {
@Rule
public TemporaryFolder folder = new TemporaryFolder(new File(System.getProperty("user.dir") + "/target"));
@Test
public void testCheckBaseDirs() throws IOException {
String uuid1 = UUID.randomUUID().toString();
String uuid2 = UUID.randomUUID().toString();
verifyAllPass(init(folder.newFolder(), Arrays.asList(uuid1), Arrays.asList(ServerConstants.DATA_VERSION)));
verifyAllPass(init(folder.newFolder(), Arrays.asList(uuid1, uuid1), Arrays.asList(ServerConstants.DATA_VERSION, ServerConstants.DATA_VERSION)));
verifyError(init(folder.newFolder(), Arrays.asList((String) null), Arrays.asList((Integer) null)));
verifyError(init(folder.newFolder(), Arrays.asList(uuid1, uuid2), Arrays.asList(ServerConstants.DATA_VERSION, ServerConstants.DATA_VERSION)));
verifyError(init(folder.newFolder(), Arrays.asList(uuid1, uuid1), Arrays.asList(ServerConstants.DATA_VERSION, ServerConstants.DATA_VERSION - 1)));
verifyError(init(folder.newFolder(), Arrays.asList(uuid1, uuid2), Arrays.asList(ServerConstants.DATA_VERSION, ServerConstants.DATA_VERSION - 1)));
verifyError(init(folder.newFolder(), Arrays.asList(uuid1, uuid2, null),
Arrays.asList(ServerConstants.DATA_VERSION, ServerConstants.DATA_VERSION, ServerConstants.DATA_VERSION)));
verifySomePass(
init(folder.newFolder(), Arrays.asList(uuid1, uuid1, null), Arrays.asList(ServerConstants.DATA_VERSION, ServerConstants.DATA_VERSION, null)), 2);
}
private void verifyAllPass(ArrayList<String> paths) {
Assert.assertEquals(paths, Arrays.asList(ServerConstants.checkBaseUris(paths.toArray(new String[paths.size()]), true)));
Assert.assertEquals(paths, Arrays.asList(ServerConstants.checkBaseUris(paths.toArray(new String[paths.size()]), false)));
}
private void verifySomePass(ArrayList<String> paths, int numExpected) {
Assert.assertEquals(paths.subList(0, 2), Arrays.asList(ServerConstants.checkBaseUris(paths.toArray(new String[paths.size()]), true)));
try {
ServerConstants.checkBaseUris(paths.toArray(new String[paths.size()]), false);
Assert.fail();
} catch (Exception e) {}
}
private void verifyError(ArrayList<String> paths) {
try {
ServerConstants.checkBaseUris(paths.toArray(new String[paths.size()]), true);
Assert.fail();
} catch (Exception e) {}
try {
ServerConstants.checkBaseUris(paths.toArray(new String[paths.size()]), false);
Assert.fail();
} catch (Exception e) {}
}
private ArrayList<String> init(File newFile, List<String> uuids, List<Integer> dataVersions) throws IllegalArgumentException, IOException {
String base = newFile.toURI().toString();
LocalFileSystem fs = FileSystem.getLocal(new Configuration());
ArrayList<String> accumuloPaths = new ArrayList<String>();
for (int i = 0; i < uuids.size(); i++) {
String volume = "v" + i;
String accumuloPath = base + "/" + volume + "/accumulo";
accumuloPaths.add(accumuloPath);
if (uuids.get(i) != null) {
fs.mkdirs(new Path(accumuloPath + "/" + ServerConstants.INSTANCE_ID_DIR));
fs.createNewFile(new Path(accumuloPath + "/" + ServerConstants.INSTANCE_ID_DIR + "/" + uuids.get(i)));
}
if (dataVersions.get(i) != null) {
fs.mkdirs(new Path(accumuloPath + "/" + ServerConstants.VERSION_DIR));
fs.createNewFile(new Path(accumuloPath + "/" + ServerConstants.VERSION_DIR + "/" + dataVersions.get(i)));
}
}
return accumuloPaths;
}
}