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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.session;
import com.google.common.io.Files;
import com.yahoo.config.application.api.ApplicationFile;
import com.yahoo.config.provision.*;
import com.yahoo.path.Path;
import com.yahoo.config.model.application.provider.*;
import com.yahoo.slime.Slime;
import com.yahoo.vespa.config.server.*;
import com.yahoo.vespa.config.server.application.MemoryTenantApplications;
import com.yahoo.vespa.config.server.deploy.DeployHandlerLogger;
import com.yahoo.vespa.config.server.deploy.TenantFileSystemDirs;
import com.yahoo.vespa.config.server.deploy.ZooKeeperClient;
import com.yahoo.vespa.config.server.host.HostRegistry;
import com.yahoo.vespa.curator.Curator;
import com.yahoo.vespa.curator.mock.MockCurator;
import com.yahoo.vespa.config.server.zookeeper.ConfigCurator;
import org.junit.Before;
import org.junit.Test;
import java.io.File;
import java.time.Instant;
import java.util.*;
import static org.hamcrest.core.Is.is;
import static org.junit.Assert.*;
/**
* @author lulf
* @since 5.1
*/
public class LocalSessionTest {
private Path tenantPath = Path.createRoot();
private Curator curator;
private ConfigCurator configCurator;
private TenantFileSystemDirs tenantFileSystemDirs;
private SuperModelGenerationCounter superModelGenerationCounter;
@Before
public void setupTest() throws Exception {
curator = new MockCurator();
configCurator = ConfigCurator.create(curator);
superModelGenerationCounter = new SuperModelGenerationCounter(curator);
tenantFileSystemDirs = new TenantFileSystemDirs(Files.createTempDir(), TenantName.from("test_tenant"));
}
@Test
public void require_that_session_is_initialized() throws Exception {
LocalSession session = createSession(TenantName.defaultName(), 2);
assertThat(session.getSessionId(), is(2l));
session = createSession(TenantName.defaultName(), Long.MAX_VALUE);
assertThat(session.getSessionId(), is(Long.MAX_VALUE));
assertThat(session.getActiveSessionAtCreate(), is(0l));
}
@Test
public void require_that_session_status_is_updated() throws Exception {
LocalSession session = createSession(TenantName.defaultName(), 3);
assertThat(session.getStatus(), is(Session.Status.NEW));
doPrepare(session, Instant.now());
assertThat(session.getStatus(), is(Session.Status.PREPARE));
session.createActivateTransaction().commit();
assertThat(session.getStatus(), is(Session.Status.ACTIVATE));
}
@Test
public void require_that_marking_session_modified_changes_status_to_new() throws Exception {
LocalSession session = createSession(TenantName.defaultName(), 3);
doPrepare(session, Instant.now());
assertThat(session.getStatus(), is(Session.Status.PREPARE));
session.getApplicationFile(Path.createRoot(), LocalSession.Mode.READ);
assertThat(session.getStatus(), is(Session.Status.PREPARE));
session.getApplicationFile(Path.createRoot(), LocalSession.Mode.WRITE);
assertThat(session.getStatus(), is(Session.Status.NEW));
}
@Test
public void require_that_preparer_is_run() throws Exception {
SessionTest.MockSessionPreparer preparer = new SessionTest.MockSessionPreparer();
LocalSession session = createSession(TenantName.defaultName(), 3, preparer);
assertFalse(preparer.isPrepared);
doPrepare(session, Instant.now());
assertTrue(preparer.isPrepared);
assertThat(session.getStatus(), is(Session.Status.PREPARE));
}
@Test
public void require_that_session_status_can_be_deactivated() throws Exception {
SessionTest.MockSessionPreparer preparer = new SessionTest.MockSessionPreparer();
LocalSession session = createSession(TenantName.defaultName(), 3, preparer);
session.createDeactivateTransaction().commit();
assertThat(session.getStatus(), is(Session.Status.DEACTIVATE));
}
private File testApp = new File("src/test/apps/app");
@Test
public void require_that_application_file_can_be_fetched() throws Exception {
LocalSession session = createSession(TenantName.defaultName(), 3);
ApplicationFile f1 = session.getApplicationFile(Path.fromString("services.xml"), LocalSession.Mode.READ);
ApplicationFile f2 = session.getApplicationFile(Path.fromString("services2.xml"), LocalSession.Mode.READ);
assertTrue(f1.exists());
assertFalse(f2.exists());
}
@Test
public void require_that_session_can_be_deleted() throws Exception {
LocalSession session = createSession(TenantName.defaultName(), 3);
assertTrue(configCurator.exists("/3"));
assertTrue(new File(tenantFileSystemDirs.path(), "3").exists());
long gen = superModelGenerationCounter.get();
session.delete();
assertThat(superModelGenerationCounter.get(), is(gen + 1));
assertFalse(configCurator.exists("/3"));
assertFalse(new File(tenantFileSystemDirs.path(), "3").exists());
}
@Test(expected = IllegalStateException.class)
public void require_that_no_provision_info_throws_exception() throws Exception {
createSession(TenantName.defaultName(), 3).getAllocatedHosts();
}
@Test
public void require_that_provision_info_can_be_read() throws Exception {
AllocatedHosts input = AllocatedHosts.withHosts(Collections.singleton(new HostSpec("myhost", Collections.<String>emptyList())));
LocalSession session = createSession(TenantName.defaultName(), 3, new SessionTest.MockSessionPreparer(), Optional.of(input));
ApplicationId origId = new ApplicationId.Builder()
.tenant("tenant")
.applicationName("foo").instanceName("quux").build();
doPrepare(session, new PrepareParams.Builder().applicationId(origId).build(), Instant.now());
AllocatedHosts info = session.getAllocatedHosts();
assertNotNull(info);
assertThat(info.getHosts().size(), is(1));
assertTrue(info.getHosts().contains(new HostSpec("myhost", Collections.emptyList())));
}
@Test
public void require_that_application_metadata_is_correct() throws Exception {
LocalSession session = createSession(TenantName.defaultName(), 3);
doPrepare(session, new PrepareParams.Builder().build(), Instant.now());
assertThat(session.getMetaData().toString(), is("n/a, n/a, 0, 0, , 0"));
}
private LocalSession createSession(TenantName tenant, long sessionId) throws Exception {
SessionTest.MockSessionPreparer preparer = new SessionTest.MockSessionPreparer();
return createSession(tenant, sessionId, preparer);
}
private LocalSession createSession(TenantName tenant, long sessionId, SessionTest.MockSessionPreparer preparer) throws Exception {
return createSession(tenant, sessionId, preparer, Optional.<AllocatedHosts>empty());
}
private LocalSession createSession(TenantName tenant, long sessionId, SessionTest.MockSessionPreparer preparer, Optional<AllocatedHosts> allocatedHosts) throws Exception {
Path sessionPath = Path.fromString("/" + sessionId);
SessionZooKeeperClient zkc = new MockSessionZKClient(curator, sessionPath, allocatedHosts);
zkc.createWriteStatusTransaction(Session.Status.NEW).commit();
ZooKeeperClient zkClient = new ZooKeeperClient(configCurator, new BaseDeployLogger(), false, sessionPath);
if (allocatedHosts.isPresent()) {
zkClient.write(allocatedHosts.get());
}
zkClient.write(Collections.singletonMap(Version.fromIntValues(0, 0, 0), new MockFileRegistry()));
File sessionDir = new File(tenantFileSystemDirs.path(), String.valueOf(sessionId));
sessionDir.createNewFile();
return new LocalSession(tenant, sessionId, preparer, new SessionContext(FilesApplicationPackage.fromFile(testApp), zkc, sessionDir, new MemoryTenantApplications(), new HostRegistry<>(), superModelGenerationCounter));
}
private void doPrepare(LocalSession session, Instant now) {
doPrepare(session, new PrepareParams.Builder().build(), now);
}
private void doPrepare(LocalSession session, PrepareParams params, Instant now) {
session.prepare(getLogger(false), params, Optional.empty(), tenantPath, now);
}
DeployHandlerLogger getLogger(boolean verbose) {
return new DeployHandlerLogger(new Slime().get(), verbose,
new ApplicationId.Builder().tenant("testtenant").applicationName("testapp").build());
}
}
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