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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.config.subscription;
import com.yahoo.config.subscription.impl.ConfigSubscription;
import com.yahoo.foo.AppConfig;
import com.yahoo.foo.SimpletypesConfig;
import com.yahoo.foo.StringConfig;
import com.yahoo.vespa.config.ConfigKey;
import com.yahoo.vespa.config.TimingValues;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotEquals;
import static org.junit.Assert.assertTrue;
public class ConfigSetSubscriptionTest {
@Test
public void testConfigSubscription() {
ConfigSubscriber subscriber = new ConfigSubscriber();
ConfigSet configSet = new ConfigSet();
AppConfig.Builder a0builder = new AppConfig.Builder().message("A message, 0").times(88);
configSet.addBuilder("app/0", a0builder);
AppConfig.Builder a1builder = new AppConfig.Builder().message("A message, 1").times(89);
configSet.addBuilder("app/1", a1builder);
ConfigSubscription<AppConfig> c1 = ConfigSubscription.get(
new ConfigKey<>(AppConfig.class, "app/0"),
subscriber,
configSet,
new TimingValues());
ConfigSubscription<AppConfig> c2 = ConfigSubscription.get(
new ConfigKey<>(AppConfig.class, "app/1"),
subscriber,
configSet,
new TimingValues());
assertEquals(c1, c1);
assertNotEquals(c1, c2);
}
@Test(expected = IllegalArgumentException.class)
public void testUnknownKey() {
ConfigSubscriber subscriber = new ConfigSubscriber();
ConfigSet configSet = new ConfigSet();
AppConfig.Builder a0builder = new AppConfig.Builder().message("A message, 0").times(88);
configSet.addBuilder("app/0", a0builder);
ConfigSubscription.get(
new ConfigKey<>(SimpletypesConfig.class, "simpletypes/1"),
subscriber,
configSet,
new TimingValues());
}
@Test
public void testConfigSetBasic() {
ConfigSet myConfigs = new ConfigSet();
AppConfig.Builder a0builder = new AppConfig.Builder().message("A message, 0").times(88);
AppConfig.Builder a1builder = new AppConfig.Builder().message("A message, 1").times(89);
StringConfig.Builder barBuilder = new StringConfig.Builder().stringVal("StringVal");
myConfigs.addBuilder("app/0", a0builder);
myConfigs.addBuilder("app/1", a1builder);
myConfigs.addBuilder("bar", barBuilder);
ConfigSubscriber subscriber = new ConfigSubscriber(myConfigs);
ConfigHandle<AppConfig> hA0 = subscriber.subscribe(AppConfig.class, "app/0");
ConfigHandle<AppConfig> hA1 = subscriber.subscribe(AppConfig.class, "app/1");
ConfigHandle<StringConfig> hS = subscriber.subscribe(StringConfig.class, "bar");
assertTrue(subscriber.nextConfig(0, false));
assertTrue(hA0.isChanged());
assertTrue(hA1.isChanged());
assertTrue(hS.isChanged());
assertEquals(hA0.getConfig().message(), "A message, 0");
assertEquals(hA1.getConfig().message(), "A message, 1");
assertEquals(hA0.getConfig().times(), 88);
assertEquals(hA1.getConfig().times(), 89);
assertFalse(subscriber.nextConfig(10, false));
assertFalse(hA0.isChanged());
assertFalse(hA1.isChanged());
assertFalse(hS.isChanged());
assertEquals(hA0.getConfig().message(), "A message, 0");
assertEquals(hA1.getConfig().message(), "A message, 1");
assertEquals(hA0.getConfig().times(), 88);
assertEquals(hA1.getConfig().times(), 89);
assertEquals(hS.getConfig().stringVal(), "StringVal");
// Reconfigure all configs, generation should change
a0builder.message("A new message, 0").times(880);
a1builder.message("A new message, 1").times(890);
barBuilder.stringVal("new StringVal");
subscriber.reload(1);
assertTrue(subscriber.nextConfig(0, false));
assertTrue(hA0.isChanged());
assertTrue(hA1.isChanged());
assertTrue(hS.isChanged());
assertEquals(hA0.getConfig().message(), "A new message, 0");
assertEquals(hA1.getConfig().message(), "A new message, 1");
assertEquals(hA0.getConfig().times(), 880);
assertEquals(hA1.getConfig().times(), 890);
assertEquals(hS.getConfig().stringVal(), "new StringVal");
// Reconfigure only one
a0builder.message("Another new message, 0").times(8800);
subscriber.reload(2);
assertTrue(subscriber.nextConfig(0, false));
assertTrue(hA0.isChanged());
assertFalse(hA1.isChanged());
assertFalse(hS.isChanged());
assertEquals(hA0.getConfig().message(), "Another new message, 0");
assertEquals(hA1.getConfig().message(), "A new message, 1");
assertEquals(hA0.getConfig().times(), 8800);
assertEquals(hA1.getConfig().times(), 890);
assertEquals(hS.getConfig().stringVal(), "new StringVal");
//Reconfigure only one, and only one field on the builder
a1builder.message("Yet another message, 1");
subscriber.reload(3);
assertTrue(subscriber.nextConfig(0, false));
assertFalse(hA0.isChanged());
assertTrue(hA1.isChanged());
assertFalse(hS.isChanged());
assertEquals(hA0.getConfig().message(), "Another new message, 0");
assertEquals(hA1.getConfig().message(), "Yet another message, 1");
assertEquals(hA0.getConfig().times(), 8800);
assertEquals(hA1.getConfig().times(), 890);
assertEquals(hS.getConfig().stringVal(), "new StringVal");
subscriber.close();
}
@Test
public void requireThatWeGetLatestConfigWhenTwoUpdatesBeforeClientChecks() {
ConfigSet myConfigs = new ConfigSet();
AppConfig.Builder a0builder = new AppConfig.Builder().message("A message, 1");
myConfigs.addBuilder("app/0", a0builder);
ConfigSubscriber subscriber = new ConfigSubscriber(myConfigs);
ConfigHandle<AppConfig> hA0 = subscriber.subscribe(AppConfig.class, "app/0");
assertTrue(subscriber.nextConfig(0, false));
assertTrue(hA0.isChanged());
assertEquals(hA0.getConfig().message(), "A message, 1");
assertFalse(subscriber.nextConfig(10, false));
assertFalse(hA0.isChanged());
assertEquals(hA0.getConfig().message(), "A message, 1");
//Reconfigure two times in a row
a0builder.message("A new message, 2");
subscriber.reload(1);
a0builder.message("An even newer message, 3");
subscriber.reload(2);
// Should pick up the last one
assertTrue(subscriber.nextConfig(0, false));
assertTrue(hA0.isChanged());
assertEquals(hA0.getConfig().message(), "An even newer message, 3");
}
}
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