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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.config.server.deploy;
import com.google.common.collect.ImmutableSet;
import com.yahoo.component.Version;
import com.yahoo.config.application.api.ApplicationMetaData;
import com.yahoo.config.application.api.ApplicationPackage;
import com.yahoo.config.application.api.FileRegistry;
import com.yahoo.config.model.application.provider.BaseDeployLogger;
import com.yahoo.config.model.application.provider.DeployData;
import com.yahoo.config.model.application.provider.FilesApplicationPackage;
import com.yahoo.config.model.application.provider.MockFileRegistry;
import com.yahoo.config.provision.AllocatedHosts;
import com.yahoo.config.provision.ApplicationId;
import com.yahoo.config.provision.HostSpec;
import com.yahoo.path.Path;
import com.yahoo.vespa.config.server.zookeeper.ConfigCurator;
import com.yahoo.vespa.config.server.zookeeper.ZKApplicationPackage;
import com.yahoo.vespa.curator.mock.MockCurator;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.TemporaryFolder;
import java.io.File;
import java.io.IOException;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import static com.yahoo.config.provision.serialization.AllocatedHostsSerializer.fromJson;
import static org.hamcrest.core.Is.is;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertThat;
import static org.junit.Assert.assertTrue;
/**
* Unit tests for ZooKeeperClient.
*
* @author hmusum
*/
public class ZooKeeperClientTest {
@Rule
public TemporaryFolder temporaryFolder = new TemporaryFolder();
private ConfigCurator zk;
private final String appPath = "/1";
@Before
public void setupZK() throws IOException {
zk = ConfigCurator.create(new MockCurator());
ZooKeeperClient zkc = new ZooKeeperClient(zk, new BaseDeployLogger(), Path.fromString(appPath));
ApplicationPackage app = FilesApplicationPackage.fromFileWithDeployData(new File("src/test/apps/zkfeed"),
new DeployData("foo",
"/bar/baz",
ApplicationId.from("default", "appName", "default"),
1345L,
true,
3L,
2L));
Map<Version, FileRegistry> fileRegistries = createFileRegistries();
app.writeMetaData();
zkc.initialize();
zkc.writeApplicationPackage(app);
zkc.write(fileRegistries);
}
private Map<Version, FileRegistry> createFileRegistries() {
FileRegistry a = new MockFileRegistry();
a.addFile("fileA");
FileRegistry b = new MockFileRegistry();
b.addFile("fileB");
Map<Version, FileRegistry> registryMap = new HashMap<>();
registryMap.put(new Version(1, 2, 3), a);
registryMap.put(new Version(3, 2, 1), b);
return registryMap;
}
@Test
public void testInitZooKeeper() {
ConfigCurator zk = ConfigCurator.create(new MockCurator());
BaseDeployLogger logger = new BaseDeployLogger();
long generation = 1L;
ZooKeeperClient zooKeeperClient = new ZooKeeperClient(zk, logger, Path.fromString("/1"));
zooKeeperClient.initialize();
String appPath = "/";
assertThat(zk.getChildren(appPath).size(), is(1));
assertTrue(zk.exists("/" + generation));
String currentAppPath = appPath + generation;
assertTrue(zk.exists(currentAppPath, ConfigCurator.DEFCONFIGS_ZK_SUBPATH.replaceFirst("/", "")));
assertThat(zk.getChildren(currentAppPath).size(), is(4));
}
@Test
public void testFeedDefFilesToZooKeeper() {
String defsPath = appPath + ConfigCurator.DEFCONFIGS_ZK_SUBPATH;
assertTrue(zk.exists(appPath, ConfigCurator.DEFCONFIGS_ZK_SUBPATH.replaceFirst("/", "")));
List<String> children = zk.getChildren(defsPath);
assertEquals(defsPath + " children", 1, children.size());
Collections.sort(children);
assertThat(children.get(0), is("a.b.test2"));
assertTrue(zk.exists(appPath, ConfigCurator.USER_DEFCONFIGS_ZK_SUBPATH.replaceFirst("/", "")));
String userDefsPath = appPath + ConfigCurator.USER_DEFCONFIGS_ZK_SUBPATH;
children = zk.getChildren(userDefsPath);
assertThat(children.size(), is(1));
Collections.sort(children);
assertThat(children.get(0), is("a.b.test2"));
}
@Test
public void testFeedAppMetaDataToZooKeeper() {
assertTrue(zk.exists(appPath, ConfigCurator.META_ZK_PATH));
ApplicationMetaData metaData = ApplicationMetaData.fromJsonString(zk.getData(appPath, ConfigCurator.META_ZK_PATH));
assertTrue(metaData.getChecksum().length() > 0);
assertTrue(metaData.isInternalRedeploy());
assertThat(metaData.getDeployedByUser(), is("foo"));
assertThat(metaData.getDeployPath(), is("/bar/baz"));
assertThat(metaData.getDeployTimestamp(), is(1345L));
assertThat(metaData.getGeneration(), is(3L));
assertThat(metaData.getPreviousActiveGeneration(), is(2L));
}
@Test
public void testVersionedFileRegistry() {
String fileRegPath = appPath + "/" + ZKApplicationPackage.fileRegistryNode;
assertTrue(zk.exists(fileRegPath));
assertTrue(zk.exists(fileRegPath + "/1.2.3"));
assertTrue(zk.exists(fileRegPath + "/3.2.1"));
// assertNull("Data at " + fileRegPath, zk.getData(fileRegPath)); Not null any more .. hm
}
@Test
public void include_dirs_are_written_to_ZK() {
assertTrue(zk.exists(appPath + ConfigCurator.USERAPP_ZK_SUBPATH + "/" + "dir1", "default.xml"));
assertTrue(zk.exists(appPath + ConfigCurator.USERAPP_ZK_SUBPATH + "/nested/" + "dir2", "chain2.xml"));
assertTrue(zk.exists(appPath + ConfigCurator.USERAPP_ZK_SUBPATH + "/nested/" + "dir2", "chain3.xml"));
}
@Test
public void search_chain_dir_written_to_ZK() {
assertTrue(zk.exists(appPath().append("search").append("chains").append("dir1").append("default.xml").getAbsolute()));
assertTrue(zk.exists(appPath().append("search").append("chains").append("dir2").append("chain2.xml").getAbsolute()));
assertTrue(zk.exists(appPath().append("search").append("chains").append("dir2").append("chain3.xml").getAbsolute()));
}
private Path appPath() {
return Path.fromString(appPath).append(ConfigCurator.USERAPP_ZK_SUBPATH);
}
@Test
public void testWritingHostNamesToZooKeeper() throws IOException {
ConfigCurator zk = ConfigCurator.create(new MockCurator());
BaseDeployLogger logger = new BaseDeployLogger();
Path app = Path.fromString("/1");
ZooKeeperClient zooKeeperClient = new ZooKeeperClient(zk, logger, app);
zooKeeperClient.initialize();
HostSpec host1 = new HostSpec("host1.yahoo.com", Collections.emptyList(), Optional.empty());
HostSpec host2 = new HostSpec("host2.yahoo.com", Collections.emptyList(), Optional.empty());
ImmutableSet<HostSpec> hosts = ImmutableSet.of(host1, host2);
zooKeeperClient.write(AllocatedHosts.withHosts(hosts));
Path hostsPath = app.append(ZKApplicationPackage.allocatedHostsNode);
assertTrue(zk.exists(hostsPath.getAbsolute()));
AllocatedHosts deserialized = fromJson(zk.getBytes(hostsPath.getAbsolute()));
assertEquals(hosts, deserialized.getHosts());
}
}
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