ChassisTest.java

/*
 * Copyright 2016 higherfrequencytrading.com
 *
 *  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 net.openhft.chronicle.engine;

import net.openhft.chronicle.core.threads.ThreadDump;
import net.openhft.chronicle.engine.api.map.MapEvent;
import net.openhft.chronicle.engine.api.pubsub.InvalidSubscriberException;
import net.openhft.chronicle.engine.api.pubsub.Subscriber;
import net.openhft.chronicle.engine.api.pubsub.TopicPublisher;
import net.openhft.chronicle.engine.api.pubsub.TopicSubscriber;
import net.openhft.chronicle.engine.api.tree.Asset;
import net.openhft.chronicle.engine.api.tree.AssetNotFoundException;
import net.openhft.chronicle.engine.map.InsertedEvent;
import net.openhft.chronicle.engine.map.RemovedEvent;
import net.openhft.chronicle.engine.map.UpdatedEvent;
import org.jetbrains.annotations.NotNull;
import org.junit.After;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;

import java.io.IOException;
import java.util.concurrent.ConcurrentMap;
import java.util.stream.Collectors;

import static net.openhft.chronicle.engine.Chassis.*;
import static net.openhft.chronicle.engine.api.tree.RequestContext.requestContext;
import static org.easymock.EasyMock.*;
import static org.junit.Assert.*;

/**
 * Created by peter on 22/05/15.
 */
public class ChassisTest {

    private ThreadDump threadDump;

    @Before
    public void threadDump() {
        threadDump = new ThreadDump();
    }

    @After
    public void checkThreadDump() {
        threadDump.assertNoNewThreads();
    }
    @Before
    public void setUp() {
        resetChassis();
    }

    @Test
    public void simpleGetMapView() {
        @NotNull ConcurrentMap<String, String> map = acquireMap("map-name", String.class, String.class);

        registerTopicSubscriber("map-name", String.class, String.class, (t, e) -> System.out.println("{ key: " + t + ", event: " + e + " }"));

        map.put("Hello", "World");

        @NotNull ConcurrentMap<String, String> map2 = acquireMap("map-name", String.class, String.class);
        assertSame(map, map2);

        map2.put("Bye", "soon");

        map2.put("Bye", "now.");
    }

    @Test
    public void subscription() throws InvalidSubscriberException {
        @NotNull ConcurrentMap<String, String> map = acquireMap("map-name?putReturnsNull=true", String.class, String.class);

        map.put("Key-1", "Value-1");
        map.put("Key-2", "Value-2");

        assertEquals(2, map.size());

        // test the bootstrap finds old keys
        Subscriber<String> subscriber = createMock(Subscriber.class);
        subscriber.onMessage("Key-1");
        subscriber.onMessage("Key-2");
        replay(subscriber);
        registerSubscriber("map-name?bootstrap=true", String.class, subscriber);
        verify(subscriber);
        reset(subscriber);

        assertEquals(2, map.size());

        // test the topic publish triggers events
        subscriber.onMessage("Topic-1");
        replay(subscriber);

        @NotNull TopicPublisher<String, String> publisher = acquireTopicPublisher("map-name", String.class, String.class);
        publisher.publish("Topic-1", "Message-1");
        verify(subscriber);
        reset(subscriber);
        assertEquals(3, map.size());

        subscriber.onMessage("Hello");
        subscriber.onMessage("Bye");
        subscriber.onMessage("Key-1");
        replay(subscriber);

        // test plain puts trigger events
        map.put("Hello", "World");
        map.put("Bye", "soon");
        map.remove("Key-1");
        verify(subscriber);

        assertEquals(4, map.size());

        // check the contents.
        assertEquals("Topic-1=Message-1\n" +
                        "Key-2=Value-2\n" +
                        "Hello=World\n" +
                        "Bye=soon",
                map.entrySet().stream()
                        .map(Object::toString)
                        .collect(Collectors.joining("\n")));

        assertEquals("Topic-1, Key-2, Hello, Bye",
                map.keySet().stream()
                        .collect(Collectors.joining(", ")));

        assertEquals("Message-1, Value-2, World, soon",
                map.values().stream()
                        .collect(Collectors.joining(", ")));
    }

    @Test
    public void keySubscription() throws InvalidSubscriberException {
        @NotNull ConcurrentMap<String, String> map = acquireMap("map-name?putReturnsNull=true", String.class, String.class);

        map.put("Key-1", "Value-1");
        map.put("Key-2", "Value-2");

        assertEquals(2, map.size());

        // test the bootstrap finds the old value
        Subscriber<String> subscriber = createMock(Subscriber.class);
        subscriber.onMessage("Value-1");
        replay(subscriber);
        registerSubscriber("map-name/Key-1?bootstrap=true", String.class, subscriber);
        assertTrue(getAsset("map-name/Key-1").isSubAsset());
        verify(subscriber);
        reset(subscriber);

        assertEquals(2, map.size());

        // test the topic publish triggers events
        subscriber.onMessage("Message-1");
        replay(subscriber);

        @NotNull TopicPublisher<String, String> publisher = acquireTopicPublisher("map-name", String.class, String.class);
        publisher.publish("Key-1", "Message-1");
        publisher.publish("Key-2", "Message-2");
        verify(subscriber);
        reset(subscriber);

        subscriber.onMessage("Bye");
        subscriber.onMessage(null);
        replay(subscriber);

        // test plain puts trigger events
        map.put("Key-1", "Bye");
        map.put("Key-3", "Another");
        map.remove("Key-1");
        verify(subscriber);
    }

    @Test
    public void topicSubscription() throws InvalidSubscriberException {
        @NotNull ConcurrentMap<String, String> map = acquireMap("map-name?putReturnsNull=true", String.class, String.class);

        map.put("Key-1", "Value-1");
        map.put("Key-2", "Value-2");

        assertEquals(2, map.size());

        // test the bootstrap finds old keys
        TopicSubscriber<String, String> subscriber = createMock(TopicSubscriber.class);
        subscriber.onMessage("Key-1", "Value-1");
        subscriber.onMessage("Key-2", "Value-2");
        replay(subscriber);
        registerTopicSubscriber("map-name?bootstrap=true", String.class, String.class, subscriber);
        verify(subscriber);
        reset(subscriber);

        assertEquals(2, map.size());

        // test the topic publish triggers events
        subscriber.onMessage("Topic-1", "Message-1");
        replay(subscriber);

        @NotNull TopicPublisher<String, String> publisher = acquireTopicPublisher("map-name", String.class, String.class);
        publisher.publish("Topic-1", "Message-1");
        verify(subscriber);
        reset(subscriber);
        assertEquals(3, map.size());

        subscriber.onMessage("Hello", "World");
        subscriber.onMessage("Bye", "soon");
        subscriber.onMessage("Key-1", null);
        replay(subscriber);

        // test plain puts trigger events
        map.put("Hello", "World");
        map.put("Bye", "soon");
        map.remove("Key-1");
        verify(subscriber);

        assertEquals(4, map.size());

        // check the contents.
        assertEquals("Topic-1=Message-1\n" +
                        "Key-2=Value-2\n" +
                        "Hello=World\n" +
                        "Bye=soon",
                map.entrySet().stream()
                        .map(Object::toString)
                        .collect(Collectors.joining("\n")));

        assertEquals("Topic-1, Key-2, Hello, Bye",
                map.keySet().stream()
                        .collect(Collectors.joining(", ")));

        assertEquals("Message-1, Value-2, World, soon",
                map.values().stream()
                        .collect(Collectors.joining(", ")));
    }

    @Test
    public void entrySubscription() throws InvalidSubscriberException {
        @NotNull ConcurrentMap<String, String> map = acquireMap("map-name?putReturnsNull=true", String.class, String.class);

        map.put("Key-1", "Value-1");
        map.put("Key-2", "Value-2");

        assertEquals(2, map.size());

        // test the bootstrap finds old keys
        Subscriber<MapEvent<String, String>> subscriber = createMock(Subscriber.class);
        subscriber.onMessage(InsertedEvent.of("/map-name", "Key-1", "Value-1",false));
        subscriber.onMessage(InsertedEvent.of("/map-name", "Key-2", "Value-2",false));
        replay(subscriber);
        registerSubscriber("map-name?bootstrap=true", MapEvent.class, (Subscriber) subscriber);
        verify(subscriber);
        reset(subscriber);

        assertEquals(2, map.size());

        // test the topic publish triggers events
        subscriber.onMessage(UpdatedEvent.of("/map-name", "Key-1", "Value-1", "Message-1", false,
                true));
        subscriber.onMessage(InsertedEvent.of("/map-name", "Topic-1", "Message-1",false));
        replay(subscriber);

        @NotNull TopicPublisher<String, String> publisher = acquireTopicPublisher("map-name", String.class, String.class);
        publisher.publish("Key-1", "Message-1");
        publisher.publish("Topic-1", "Message-1");
        verify(subscriber);
        reset(subscriber);
        assertEquals(3, map.size());

        subscriber.onMessage(InsertedEvent.of("/map-name", "Hello", "World",false));
        subscriber.onMessage(InsertedEvent.of("/map-name", "Bye", "soon",false));
        subscriber.onMessage(RemovedEvent.of("/map-name", "Key-1", "Message-1",false));
        replay(subscriber);

        // test plain puts trigger events
        map.put("Hello", "World");
        map.put("Bye", "soon");
        map.remove("Key-1");
        verify(subscriber);

        assertEquals(4, map.size());
    }

    @Test
    public void testStringString() throws IOException, InterruptedException {
        @NotNull final ConcurrentMap<String, String> mapProxy = Chassis.acquireMap("testStringString", String.class, String.class);
        mapProxy.put("hello", "world");
        Assert.assertEquals("world", mapProxy.get("hello"));
        assertEquals(1, mapProxy.size());
    }

    @Test
    public void newNode() {
        @NotNull Asset group = acquireAsset("group");
        @NotNull Asset subgroup = acquireAsset("group/sub-group");
        assertEquals("/group/sub-group", subgroup.fullName());

        @NotNull Asset group2 = acquireAsset("/group2/sub-group");
        assertEquals("/group2/sub-group", group2.fullName());
    }

    @Test()
    public void noAsset() {
        registerTopicSubscriber("topic-name", String.class, String.class, (t, e) -> System.out.println("{ key: " + t + ", event: " + e + " }"));
        @NotNull TopicPublisher<String, String> publisher = acquireTopicPublisher("topic-name", String.class, String.class);
        publisher.publish("hi", "there");

        // TODO should send a message.
    }

    @Test(expected = AssetNotFoundException.class)
    public void noInterceptor() {
        @NotNull Asset asset = acquireAsset("");

        asset.acquireView(requestContext("").viewType(MyInterceptor.class));
    }

    @Test
    public void generateInterceptor() {
        @NotNull Asset asset = acquireAsset("");

        asset.addLeafRule(MyInterceptor.class, "test", (context, asset2) -> {
            assertEquals(MyInterceptor.class, context.viewType());
            return new MyInterceptor();
        });
        @NotNull MyInterceptor mi = asset.acquireView(requestContext("").viewType(MyInterceptor.class));
        @NotNull MyInterceptor mi2 = asset.acquireView(requestContext("").viewType(MyInterceptor.class));
        assertNotNull(mi);
        assertSame(mi, mi2);
    }

    static class MyInterceptor {
    }
}