/
JdbcConnectionUrlTest.java
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/
JdbcConnectionUrlTest.java
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/*
* Copyright 2021 Google LLC
*
* 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 com.google.cloud.spanner.jdbc;
import static com.google.common.truth.Truth.assertThat;
import com.google.cloud.spanner.connection.AbstractMockServerTest;
import com.google.common.base.Predicate;
import com.google.protobuf.AbstractMessage;
import com.google.spanner.v1.BatchCreateSessionsRequest;
import java.sql.Connection;
import java.sql.SQLException;
import java.util.concurrent.Callable;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import org.junit.AfterClass;
import org.junit.Test;
import org.junit.experimental.runners.Enclosed;
import org.junit.runner.RunWith;
@RunWith(Enclosed.class)
public class JdbcConnectionUrlTest {
public static class ConnectionMinSessionsTest extends AbstractMockServerTest {
@AfterClass
public static void reset() {
mockSpanner.reset();
}
protected String getBaseUrl() {
return super.getBaseUrl() + ";minSessions=1";
}
@Test
public void testMinSessions() throws InterruptedException, TimeoutException, SQLException {
try (Connection connection = createJdbcConnection()) {
mockSpanner.waitForRequestsToContain(
new Predicate<AbstractMessage>() {
@Override
public boolean apply(AbstractMessage input) {
return input instanceof BatchCreateSessionsRequest
&& ((BatchCreateSessionsRequest) input).getSessionCount() == 1;
}
},
5000L);
}
}
}
public static class ConnectionMaxSessionsTest extends AbstractMockServerTest {
@AfterClass
public static void reset() {
mockSpanner.reset();
}
protected String getBaseUrl() {
return super.getBaseUrl() + ";maxSessions=1";
}
@Test
public void testMaxSessions()
throws InterruptedException, TimeoutException, ExecutionException, SQLException {
ExecutorService executor1 = Executors.newSingleThreadExecutor();
ExecutorService executor2 = Executors.newSingleThreadExecutor();
try (Connection connection1 = createJdbcConnection();
Connection connection2 = createJdbcConnection()) {
final CountDownLatch latch = new CountDownLatch(1);
Future<Void> fut1 =
executor1.submit(
new Callable<Void>() {
@Override
public Void call() throws SQLException, InterruptedException {
latch.await(5L, TimeUnit.SECONDS);
connection1.createStatement().executeUpdate(INSERT_STATEMENT.getSql());
connection1.commit();
return null;
}
});
Future<Void> fut2 =
executor2.submit(
new Callable<Void>() {
@Override
public Void call() throws SQLException {
latch.countDown();
connection2.createStatement().executeUpdate(INSERT_STATEMENT.getSql());
connection2.commit();
return null;
}
});
// Wait until both finishes.
fut1.get(5L, TimeUnit.SECONDS);
fut2.get(5L, TimeUnit.SECONDS);
} finally {
executor1.shutdown();
executor2.shutdown();
}
assertThat(mockSpanner.numSessionsCreated()).isEqualTo(1);
}
}
}