/*
* 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 gobblin.metadata.types;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.util.Iterator;
import java.util.List;
import org.codehaus.jackson.JsonNode;
import org.codehaus.jackson.map.ObjectMapper;
import org.testng.Assert;
import org.testng.annotations.Test;
import com.google.common.collect.ImmutableList;
public class GlobalMetadataTest {
@Test
public void testMerge() {
GlobalMetadata m = new GlobalMetadata();
m.setFileMetadata("file1", "key1", "val1");
m.addTransferEncoding("gzip");
GlobalMetadata m2 = new GlobalMetadata();
m2.setFileMetadata("file2", "key1", "val2");
m2.addTransferEncoding("gzip");
GlobalMetadata merged = new GlobalMetadata();
merged.addAll(m);
merged.addAll(m2);
Assert.assertEquals(merged.getFileMetadata("file1", "key1"), "val1");
Assert.assertEquals(merged.getFileMetadata("file2", "key1"), "val2");
List<String> mergedEncoding = merged.getTransferEncoding();
Assert.assertEquals(mergedEncoding.size(), 1);
Assert.assertEquals(mergedEncoding.get(0), "gzip");
}
@Test
public void testToJson() throws IOException {
GlobalMetadata m = new GlobalMetadata();
m.addTransferEncoding("foo");
m.addTransferEncoding("bar");
byte[] utf8 = m.toJsonUtf8();
String parsed = new String(utf8, StandardCharsets.UTF_8);
JsonNode root = new ObjectMapper().readTree(parsed);
Assert.assertTrue(root.isObject());
Iterator<JsonNode> children = root.getElements();
int numChildren = 0;
while (children.hasNext()) {
children.next();
numChildren++;
}
Assert.assertEquals(numChildren, 3, "expected only 3 child nodes - file, dataset, id");
Assert.assertEquals(root.get("file").size(), 0, "expected no children in file node");
Assert.assertTrue(root.get("id").isTextual(), "expected ID to be textual");
JsonNode transferEncoding = root.get("dataset").get("Transfer-Encoding");
Assert.assertEquals(transferEncoding.size(), m.getTransferEncoding().size());
for (int i = 0; i < m.getTransferEncoding().size(); i++) {
Assert.assertEquals(transferEncoding.get(i).getTextValue(), m.getTransferEncoding().get(i));
}
}
@Test
public void testFromJson() throws IOException {
String serialized = "{\"dataset\":{\"Transfer-Encoding\":[\"gzip\",\"aes_rotating\"]},\"file\":{\"part.task_hello-world_1488584636479_1.json.gzip.aes_rotating\":{\"exists\":\"true\"}}}";
GlobalMetadata md = GlobalMetadata.fromJson(serialized);
List<String> transferEncoding = md.getTransferEncoding();
Assert.assertEquals(transferEncoding, ImmutableList.of("gzip", "aes_rotating"));
Assert.assertEquals(md.getFileMetadata("part.task_hello-world_1488584636479_1.json.gzip.aes_rotating", "exists"), "true");
}
@Test
public void testGetId() {
GlobalMetadata m1 = buildMetadata();
GlobalMetadata m2 = buildMetadata();
Assert.assertEquals(m1.getId(), m2.getId());
m1.addTransferEncoding("baz");
Assert.assertNotEquals(m1.getId(), m2.getId());
}
@Test(expectedExceptions = UnsupportedOperationException.class)
public void testImmutableGlobal() {
GlobalMetadata md = new GlobalMetadata();
md.setDatasetUrn("Hello");
md.markImmutable();
Assert.assertEquals(md.getDatasetUrn(), "Hello");
md.setDatasetUrn("World"); // should throw
}
@Test(expectedExceptions = UnsupportedOperationException.class)
public void testImmutableDataset() {
GlobalMetadata md = new GlobalMetadata();
md.setFileMetadata("file1", "key1", "val1");
md.markImmutable();
Assert.assertEquals(md.getFileMetadata("file1", "key1"), "val1");
md.setFileMetadata("file1", "key1", "val2"); // should throw
}
protected GlobalMetadata buildMetadata() {
GlobalMetadata m = new GlobalMetadata();
m.addTransferEncoding("foo");
m.addTransferEncoding("bar");
return m;
}
}