/*
* Copyright 2013 Cloudera 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.kitesdk.data.spi.filesystem;
import java.net.URI;
import org.apache.avro.generic.GenericData.Record;
import org.apache.avro.util.Utf8;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.junit.Assert;
import org.junit.BeforeClass;
import org.junit.Test;
import org.kitesdk.data.Dataset;
import org.kitesdk.data.DatasetDescriptor;
import org.kitesdk.data.DatasetNotFoundException;
import org.kitesdk.data.Datasets;
import org.kitesdk.data.RefinableView;
import org.kitesdk.data.TestHelpers;
import org.kitesdk.data.spi.Constraints;
import org.kitesdk.data.spi.DatasetRepositories;
import org.kitesdk.data.spi.DatasetRepository;
public class TestLocalDatasetURIs {
private static FileSystem localFS;
private static DatasetDescriptor descriptor;
@BeforeClass
public static void createRepositoryAndTestDatasets() throws Exception {
localFS = FileSystem.getLocal(new Configuration());
descriptor = new DatasetDescriptor.Builder()
.schemaUri("resource:schema/user.avsc")
.build();
}
@Test
public void testAbsolute() {
DatasetRepository repo = DatasetRepositories.repositoryFor("repo:file:/tmp/data");
repo.delete("ns", "test");
repo.create("ns", "test", descriptor);
Dataset<Record> ds = Datasets.<Record, Dataset<Record>>
load("dataset:file:/tmp/data/ns/test", Record.class);
Assert.assertNotNull("Should load dataset", ds);
Assert.assertTrue(ds instanceof FileSystemDataset);
Assert.assertEquals("Locations should match",
URI.create("file:/tmp/data/ns/test"),
ds.getDescriptor().getLocation());
Assert.assertEquals("Descriptors should match",
repo.load("ns", "test").getDescriptor(), ds.getDescriptor());
Assert.assertEquals("Should report correct namespace",
"ns", ds.getNamespace());
Assert.assertEquals("Should report correct name",
"test", ds.getName());
repo.delete("ns", "test");
}
@Test
public void testRelative() {
DatasetRepository repo = DatasetRepositories.repositoryFor("repo:file:target/data");
repo.delete("ns", "test");
repo.create("ns", "test", descriptor);
Dataset<Record> ds = Datasets.<Record, Dataset<Record>>
load("dataset:file:target/data/ns/test", Record.class);
Assert.assertNotNull("Should load dataset", ds);
Assert.assertTrue(ds instanceof FileSystemDataset);
Path cwd = localFS.makeQualified(new Path("."));
Assert.assertEquals("Locations should match",
new Path(cwd, "target/data/ns/test").toUri(), ds.getDescriptor().getLocation());
Assert.assertEquals("Descriptors should match",
repo.load("ns", "test").getDescriptor(), ds.getDescriptor());
Assert.assertEquals("Should report correct namespace",
"ns", ds.getNamespace());
Assert.assertEquals("Should report correct name",
"test", ds.getName());
repo.delete("ns", "test");
}
@Test
public void testViewConstraints() {
DatasetRepository repo = DatasetRepositories.repositoryFor("repo:file:/tmp/data");
repo.delete("ns", "test");
repo.create("ns", "test", descriptor);
RefinableView<Record> v = Datasets.<Record, RefinableView<Record>>
load("view:file:/tmp/data/ns/test?username=user", Record.class);
Assert.assertNotNull("Should load view", v);
Assert.assertTrue(v instanceof FileSystemView);
Assert.assertEquals("Locations should match",
URI.create("file:/tmp/data/ns/test"),
v.getDataset().getDescriptor().getLocation());
DatasetDescriptor loaded = repo.load("ns", "test").getDescriptor();
Assert.assertEquals("Descriptors should match",
loaded, v.getDataset().getDescriptor());
Assert.assertEquals("Should report correct namespace",
"ns", v.getDataset().getNamespace());
Assert.assertEquals("Should report correct name",
"test", v.getDataset().getName());
Constraints withUser = new Constraints(loaded.getSchema())
.with("username", new Utf8("user"));
Assert.assertEquals("Constraints should be username=user",
withUser, ((FileSystemView) v).getConstraints());
repo.delete("ns", "test");
}
@Test
public void testMissingDataset() {
TestHelpers.assertThrows("Should not find dataset: no such dataset",
DatasetNotFoundException.class, new Runnable() {
@Override
public void run() {
Dataset<Record> ds = Datasets.<Record, Dataset<Record>>
load("dataset:file:/tmp/data/ns/nosuchdataset", Record.class);
}
});
}
@Test
public void testMissingNamespace() {
TestHelpers.assertThrows("Should not find dataset: no such namespace",
DatasetNotFoundException.class, new Runnable() {
@Override
public void run() {
Dataset<Record> ds = Datasets.<Record, Dataset<Record>>
load("dataset:file:/tmp/data/nosuchnamespace/test", Record.class);
}
});
}
@Test
public void testNotEnoughPathComponents() {
TestHelpers.assertThrows("Should not match URI pattern",
DatasetNotFoundException.class, new Runnable() {
@Override
public void run() {
Dataset<Record> ds = Datasets.<Record, Dataset<Record>>
load("dataset:file:/test", Record.class);
}
});
}
@Test
public void testMissingRepository() {
TestHelpers.assertThrows("Should not find dataset: unknown storage scheme",
DatasetNotFoundException.class, new Runnable() {
@Override
public void run() {
Dataset<Record> ds = Datasets.<Record, Dataset<Record>>
load("dataset:unknown:/tmp/data/test", Record.class);
}
});
}
}