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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.messagebus;
import com.yahoo.config.subscription.ConfigSet;
import com.yahoo.config.subscription.ConfigURI;
import com.yahoo.messagebus.routing.RoutingSpec;
import org.junit.jupiter.api.Test;
import java.util.concurrent.TimeUnit;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertTrue;
/**
* @author Simon Thoresen Hult
*/
public class ConfigAgentTestCase {
@Test
void testRoutingConfig() throws InterruptedException {
LocalHandler handler = new LocalHandler();
assertFalse(testHalf(handler.spec));
assertFalse(testFull(handler.spec));
ConfigSet set = new ConfigSet();
set.addBuilder("test", writeFull());
ConfigAgent agent = new ConfigAgent(ConfigURI.createFromIdAndSource("test", set), handler);
assertFalse(testHalf(handler.spec));
assertFalse(testFull(handler.spec));
agent.subscribe();
assertFalse(testHalf(handler.spec));
assertTrue(testFull(handler.spec));
handler.reset();
set.addBuilder("test", writeHalf());
assertTrue(handler.await(120, TimeUnit.SECONDS));
assertTrue(testHalf(handler.spec));
assertFalse(testFull(handler.spec));
handler.reset();
set.addBuilder("test", writeFull());
assertTrue(handler.await(120, TimeUnit.SECONDS));
assertTrue(testFull(handler.spec));
assertFalse(testHalf(handler.spec));
}
private boolean testHalf(RoutingSpec spec) {
if (spec.getNumTables() != 1) {
return false;
}
assertTables(spec, 1);
return true;
}
private boolean testFull(RoutingSpec spec) {
if (spec.getNumTables() != 2) {
return false;
}
assertTables(spec, 2);
return true;
}
private void assertTables(RoutingSpec spec, int numTables) {
assertEquals(numTables, spec.getNumTables());
if (numTables > 0) {
assertEquals("foo", spec.getTable(0).getProtocol());
assertEquals(2, spec.getTable(0).getNumHops());
assertEquals("foo-h1", spec.getTable(0).getHop(0).getName());
assertEquals("foo-h1-sel", spec.getTable(0).getHop(0).getSelector());
assertEquals(2, spec.getTable(0).getHop(0).getNumRecipients());
assertEquals("foo-h1-r1", spec.getTable(0).getHop(0).getRecipient(0));
assertEquals("foo-h1-r2", spec.getTable(0).getHop(0).getRecipient(1));
assertEquals(true, spec.getTable(0).getHop(0).getIgnoreResult());
assertEquals("foo-h2", spec.getTable(0).getHop(1).getName());
assertEquals("foo-h2-sel", spec.getTable(0).getHop(1).getSelector());
assertEquals(2, spec.getTable(0).getHop(1).getNumRecipients());
assertEquals("foo-h2-r1", spec.getTable(0).getHop(1).getRecipient(0));
assertEquals("foo-h2-r2", spec.getTable(0).getHop(1).getRecipient(1));
assertEquals(2, spec.getTable(0).getNumRoutes());
assertEquals("foo-r1", spec.getTable(0).getRoute(0).getName());
assertEquals(2, spec.getTable(0).getRoute(0).getNumHops());
assertEquals("foo-h1", spec.getTable(0).getRoute(0).getHop(0));
assertEquals("foo-h2", spec.getTable(0).getRoute(0).getHop(1));
assertEquals("foo-r2", spec.getTable(0).getRoute(1).getName());
assertEquals(2, spec.getTable(0).getRoute(1).getNumHops());
assertEquals("foo-h2", spec.getTable(0).getRoute(1).getHop(0));
assertEquals("foo-h1", spec.getTable(0).getRoute(1).getHop(1));
}
if (numTables > 1) {
assertEquals("bar", spec.getTable(1).getProtocol());
assertEquals(2, spec.getTable(1).getNumHops());
assertEquals("bar-h1", spec.getTable(1).getHop(0).getName());
assertEquals("bar-h1-sel", spec.getTable(1).getHop(0).getSelector());
assertEquals(2, spec.getTable(1).getHop(0).getNumRecipients());
assertEquals("bar-h1-r1", spec.getTable(1).getHop(0).getRecipient(0));
assertEquals("bar-h1-r2", spec.getTable(1).getHop(0).getRecipient(1));
assertEquals("bar-h2", spec.getTable(1).getHop(1).getName());
assertEquals("bar-h2-sel", spec.getTable(1).getHop(1).getSelector());
assertEquals(2, spec.getTable(1).getHop(1).getNumRecipients());
assertEquals("bar-h2-r1", spec.getTable(1).getHop(1).getRecipient(0));
assertEquals("bar-h2-r2", spec.getTable(1).getHop(1).getRecipient(1));
assertEquals(2, spec.getTable(1).getNumRoutes());
assertEquals("bar-r1", spec.getTable(1).getRoute(0).getName());
assertEquals(2, spec.getTable(1).getRoute(0).getNumHops());
assertEquals("bar-h1", spec.getTable(1).getRoute(0).getHop(0));
assertEquals("bar-h2", spec.getTable(1).getRoute(0).getHop(1));
assertEquals("bar-r2", spec.getTable(1).getRoute(1).getName());
assertEquals(2, spec.getTable(1).getRoute(1).getNumHops());
assertEquals("bar-h2", spec.getTable(1).getRoute(1).getHop(0));
assertEquals("bar-h1", spec.getTable(1).getRoute(1).getHop(1));
}
}
private static MessagebusConfig.Builder writeHalf() {
return writeTables(1);
}
private static MessagebusConfig.Builder writeFull() {
return writeTables(2);
}
private static MessagebusConfig.Builder writeTables(int numTables) {
MessagebusConfig.Builder builder = new MessagebusConfig.Builder();
if (numTables > 0) {
MessagebusConfig.Routingtable.Builder table = new MessagebusConfig.Routingtable.Builder();
table.protocol("foo");
table.hop(getHop("foo-h1", "foo-h1-sel", "foo-h1-r1", "foo-h1-r2", true));
table.hop(getHop("foo-h2", "foo-h2-sel", "foo-h2-r1", "foo-h2-r2", false));
table.route(getRoute("foo-r1", "foo-h1", "foo-h2"));
table.route(getRoute("foo-r2", "foo-h2", "foo-h1"));
builder.routingtable(table);
}
if (numTables > 1) {
MessagebusConfig.Routingtable.Builder table = new MessagebusConfig.Routingtable.Builder();
table.protocol("bar");
table.hop(getHop("bar-h1", "bar-h1-sel", "bar-h1-r1", "bar-h1-r2", false));
table.hop(getHop("bar-h2", "bar-h2-sel", "bar-h2-r1", "bar-h2-r2", false));
table.route(getRoute("bar-r1", "bar-h1", "bar-h2"));
table.route(getRoute("bar-r2", "bar-h2", "bar-h1"));
builder.routingtable(table);
}
return builder;
}
private static MessagebusConfig.Routingtable.Route.Builder getRoute(String name, String hop1, String hop2) {
MessagebusConfig.Routingtable.Route.Builder route = new MessagebusConfig.Routingtable.Route.Builder();
route.name(name);
route.hop(hop1);
route.hop(hop2);
return route;
}
private static MessagebusConfig.Routingtable.Hop.Builder getHop(String name, String selector, String recipient1, String recipient2, boolean ignoreresult) {
MessagebusConfig.Routingtable.Hop.Builder hop = new MessagebusConfig.Routingtable.Hop.Builder();
hop.name(name);
hop.selector(selector);
hop.recipient(recipient1);
hop.recipient(recipient2);
hop.ignoreresult(ignoreresult);
return hop;
}
private static class LocalHandler implements ConfigHandler {
RoutingSpec spec = new RoutingSpec();
public synchronized void setupRouting(RoutingSpec spec) {
this.spec = spec;
notify();
}
public synchronized void reset() {
spec = null;
}
public synchronized boolean await(int timeout, TimeUnit unit) throws InterruptedException {
long remaining, doom = System.currentTimeMillis() + unit.toMillis(timeout);
while (spec == null && (remaining = doom - System.currentTimeMillis()) > 0)
wait(remaining);
return spec != null;
}
}
}
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