TCCLExecutionContextServiceTest.java

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 * Wisdom-Framework
 * %%
 * Copyright (C) 2013 - 2015 Wisdom Framework
 * %%
 * 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,
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package org.wisdom.executors.context;

import com.google.common.collect.ImmutableList;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.wisdom.api.concurrent.ExecutionContextService;
import org.wisdom.api.concurrent.ManagedExecutorService;
import org.wisdom.api.http.Result;
import org.wisdom.api.http.Results;
import org.wisdom.api.http.Status;
import org.wisdom.executors.ManagedExecutorServiceImpl;
import org.wisdom.test.parents.FakeConfiguration;

import java.io.File;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.Collections;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;

import static org.assertj.core.api.Assertions.assertThat;

public class TCCLExecutionContextServiceTest {

    private ManagedExecutorService service;
    private ClassLoader origin;

    @Before
    public void setUp() {
        origin = Thread.currentThread().getContextClassLoader();
        service = new ManagedExecutorServiceImpl("test",
                new FakeConfiguration(Collections.<String, Object>emptyMap()),
                ImmutableList.<ExecutionContextService>of(new TCCLExecutionContextService()));
    }

    @After
    public void tearDown() throws InterruptedException {
        service.shutdown();
        service.awaitTermination(100, TimeUnit.MICROSECONDS);
        Thread.currentThread().setContextClassLoader(origin);
    }

    @Test
    public void testThatTheTCCLIsCorrectlyMigrated()
            throws ExecutionException, InterruptedException, MalformedURLException {
        final URLClassLoader loader = new URLClassLoader(new URL[]{
                new File("").toURI().toURL()
        });
        Callable<Result> computation = new Callable<Result>() {
            @Override
            public Result call() throws Exception {
                ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
                System.out.println(classLoader);
                if (classLoader == loader) {
                    return Results.ok();
                }
                return Results.badRequest();
            }
        };

        Thread.currentThread().setContextClassLoader(loader);
        Future<Result> future = service.submit(computation);

        assertThat(future.get().getStatusCode()).isEqualTo(Status.OK);
    }


}