core/runtime/src/test/java/org/qi4j/runtime/service/ActivatableServiceTest.java

/*
 * Copyright (c) 2008, Rickard Öberg. All Rights Reserved.
 * Copyright (c) 2012, Paul Merlin.
 *
 * 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 org.qi4j.runtime.service;

import org.junit.Test;
import org.qi4j.api.injection.scope.Service;
import org.qi4j.api.service.ServiceComposite;
import org.qi4j.api.service.ServiceReference;
import org.qi4j.bootstrap.AssemblyException;
import org.qi4j.bootstrap.ModuleAssembly;
import org.qi4j.bootstrap.SingletonAssembler;

import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;

/**
 * Test of activatable services
 */
public class ActivatableServiceTest
{
    @Service
    ServiceReference<ActivatableComposite> service;

    public static boolean isActive;

    @Test
    public void testActivatable()
        throws Exception
    {
        SingletonAssembler assembly = new SingletonAssembler()
        {
            public void assemble( ModuleAssembly module )
                throws AssemblyException
            {
                module.objects( ActivatableServiceTest.class );
                module.services( ActivatableComposite.class ).withActivators( TestActivator.class).instantiateOnStartup();
            }
        };

        assertTrue( isActive );

        assembly.module().injectTo( this );

        assertTrue( isActive );

        service.get();

        assertTrue( isActive );

        assembly.application().passivate();

        assertFalse( isActive );
    }

    public static interface ActivatableComposite
        extends ServiceComposite
    {
    }

    public static class TestActivator
            extends org.qi4j.api.activation.ActivatorAdapter<Object>
    {

        @Override
        public void afterActivation( Object activated )
        {
            isActive = true;
        }

        @Override
        public void afterPassivation( Object passivated )
                throws Exception
        {
            if ( !isActive ) {
                throw new Exception( "Not active!" );
            }

            isActive = false;
        }

    }
}