Package org.apache.tuscany.core.implementation.java

Source Code of org.apache.tuscany.core.implementation.java.JavaComponentBuilderTestCase

/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements.  See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership.  The ASF licenses this file
* to you 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.apache.tuscany.core.implementation.java;

import java.lang.reflect.Constructor;
import java.util.HashMap;
import java.util.Map;

import org.apache.tuscany.spi.component.AtomicComponent;
import org.apache.tuscany.spi.component.CompositeComponent;
import org.apache.tuscany.spi.component.ScopeContainer;
import org.apache.tuscany.spi.deployer.DeploymentContext;
import org.apache.tuscany.spi.idl.java.JavaServiceContract;
import org.apache.tuscany.spi.implementation.java.ConstructorDefinition;
import org.apache.tuscany.spi.implementation.java.JavaMappedProperty;
import org.apache.tuscany.spi.implementation.java.JavaMappedReference;
import org.apache.tuscany.spi.implementation.java.JavaMappedService;
import org.apache.tuscany.spi.implementation.java.PojoComponentType;
import org.apache.tuscany.spi.model.ComponentDefinition;
import org.apache.tuscany.spi.model.Scope;
import org.apache.tuscany.spi.model.ServiceContract;

import junit.framework.TestCase;
import org.apache.tuscany.core.deployer.RootDeploymentContext;
import org.apache.tuscany.core.implementation.composite.CompositeComponentImpl;
import org.apache.tuscany.core.implementation.java.mock.components.Source;
import org.apache.tuscany.core.implementation.java.mock.components.SourceImpl;
import org.apache.tuscany.core.implementation.java.mock.components.Target;
import org.apache.tuscany.core.wire.jdk.JDKWireService;
import org.easymock.EasyMock;
import org.easymock.IAnswer;

/**
* @version $$Rev: 451895 $$ $$Date: 2006-10-01 23:58:18 -0700 (Sun, 01 Oct 2006) $$
*/
public class JavaComponentBuilderTestCase extends TestCase {
    private DeploymentContext deploymentContext;

    public void testBuild() throws Exception {
        CompositeComponent parent = new CompositeComponentImpl(null, null, null, null);

        PojoComponentType<JavaMappedService, JavaMappedReference, JavaMappedProperty<?>> sourceType =
            new PojoComponentType<JavaMappedService, JavaMappedReference, JavaMappedProperty<?>>();
        sourceType.setImplementationScope(Scope.MODULE);
        JavaMappedReference reference = new JavaMappedReference();
        reference.setName("target");
        reference.setMember(SourceImpl.class.getMethod("setTarget", Target.class));
        sourceType.add(reference);

        ServiceContract<?> sourceContract = new JavaServiceContract(Source.class);
        JavaMappedService sourceServiceDefinition = new JavaMappedService();
        sourceServiceDefinition.setName("Source");
        sourceServiceDefinition.setServiceContract(sourceContract);

        sourceType.add(sourceServiceDefinition);
        Constructor<SourceImpl> constructor = SourceImpl.class.getConstructor((Class[]) null);
        sourceType.setConstructorDefinition(new ConstructorDefinition<SourceImpl>(constructor));
        JavaImplementation sourceImpl = new JavaImplementation();
        sourceImpl.setComponentType(sourceType);
        sourceImpl.setImplementationClass(SourceImpl.class);
        ComponentDefinition<JavaImplementation> sourceComponentDefinition =
            new ComponentDefinition<JavaImplementation>(sourceImpl);

        JavaComponentBuilder builder = new JavaComponentBuilder();
        builder.setWireService(new JDKWireService());
        JavaAtomicComponent component =
            (JavaAtomicComponent) builder.build(parent, sourceComponentDefinition, deploymentContext);
        deploymentContext.getModuleScope().start();
        component.start();
        Source source = (Source) component.getServiceInstance();
        assertNotNull(source);
        component.stop();
    }

    protected void setUp() throws Exception {
        super.setUp();
        deploymentContext = new RootDeploymentContext(null, null, createMock(), null);
    }

    private ScopeContainer createMock() {
        ScopeContainer scope = EasyMock.createMock(ScopeContainer.class);
        scope.start();
        scope.stop();
        scope.register(EasyMock.isA(AtomicComponent.class));
        EasyMock.expectLastCall().atLeastOnce();
        EasyMock.expect(scope.getScope()).andReturn(Scope.MODULE).atLeastOnce();
        scope.getInstance(EasyMock.isA(AtomicComponent.class));
        EasyMock.expectLastCall().andAnswer(new IAnswer<Object>() {
            private Map<AtomicComponent, Object> cache = new HashMap<AtomicComponent, Object>();

            public Object answer() throws Throwable {
                AtomicComponent component = (AtomicComponent) EasyMock.getCurrentArguments()[0];
                Object instance = cache.get(component);
                if (instance == null) {
                    instance = component.createInstance();
                    cache.put(component, instance);
                }
                return instance;
            }
        }).anyTimes();
        EasyMock.replay(scope);
        return scope;
    }

}
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