Examples with ComponentImpl org.apache.felix.dm.impl.ComponentImpl used on opensource projects

Example 1 with ComponentImpl

use of org.apache.felix.dm.impl.ComponentImpl in project felix by apache.

the class ComponentTest method createComponentAddTwoDependenciesMakeBothAvailableAndUnavailableWithCallbacks.

@Test
public void createComponentAddTwoDependenciesMakeBothAvailableAndUnavailableWithCallbacks() {
    final Ensure e = new Ensure();
    ComponentImpl c = new ComponentImpl();
    c.setImplementation(new Object() {

        public void add() {
            e.step();
        }

        public void remove() {
            e.step();
        }
    });
    SimpleServiceDependency d1 = new SimpleServiceDependency();
    d1.setCallbacks("add", "remove");
    d1.setRequired(true);
    SimpleServiceDependency d2 = new SimpleServiceDependency();
    d2.setCallbacks("add", "remove");
    d2.setRequired(true);
    // start the component, which should become active because there are no
    // dependencies yet
    c.start();
    // now add the dependencies, making the ComponentImpl unavailable
    c.add(d1);
    c.add(d2);
    // make the first dependency available, should have no effect on the
    // component
    d1.add(new EventImpl());
    e.step(1);
    // second dependency available, now all the add callbacks should be
    // invoked
    d2.add(new EventImpl());
    e.step(4);
    // remove the first dependency, triggering the remove callbacks
    d1.remove(new EventImpl());
    e.step(7);
    // remove the second dependency, should not trigger more callbacks
    d2.remove(new EventImpl());
    e.step(8);
    c.remove(d2);
    c.remove(d1);
    c.stop();
    // still, no more callbacks should have been invoked
    e.step(9);
    Assert.assertEquals("Component stopped, should be unavailable again", false, c.isAvailable());
}

Example 2 with ComponentImpl

use of org.apache.felix.dm.impl.ComponentImpl in project felix by apache.

the class ComponentTest method createComponentAddDependencyMakeAvailableAndUnavailableWithCallbacks.

@Test
public void createComponentAddDependencyMakeAvailableAndUnavailableWithCallbacks() {
    final Ensure e = new Ensure();
    ComponentImpl c = new ComponentImpl();
    c.setImplementation(new Object() {

        public void add() {
            e.step(1);
        }

        public void remove() {
            e.step(3);
        }
    });
    SimpleServiceDependency d1 = new SimpleServiceDependency();
    d1.setCallbacks("add", "remove");
    d1.setRequired(true);
    // add the dependency to the component
    c.add(d1);
    // start the component
    c.start();
    // make the dependency available, we expect the add callback
    // to be invoked here
    d1.add(new EventImpl());
    e.step(2);
    // remove the dependency, should trigger the remove callback
    d1.remove(new EventImpl());
    e.step(4);
    c.stop();
    c.remove(d1);
    Assert.assertEquals("Component stopped, should be unavailable again", false, c.isAvailable());
}

Example 3 with ComponentImpl

use of org.apache.felix.dm.impl.ComponentImpl in project felix by apache.

the class ComponentTest method testAddDependencyFromInitCallback.

@Test
public void testAddDependencyFromInitCallback() {
    final Ensure e = new Ensure();
    final SimpleServiceDependency d = new SimpleServiceDependency();
    d.setRequired(true);
    ComponentImpl c = new ComponentImpl();
    c.setImplementation(new Object() {

        void init(Component c) {
            e.step(2);
            c.add(d);
        }

        void start() {
            e.step(4);
        }

        void stop() {
            e.step(6);
        }

        void destroy() {
            e.step(7);
        }
    });
    e.step(1);
    c.start();
    e.step(3);
    // NPE?!
    d.add(new EventImpl());
    e.step(5);
    d.remove(new EventImpl());
    c.stop();
    e.step(8);
}

Example 4 with ComponentImpl

use of org.apache.felix.dm.impl.ComponentImpl in project felix by apache.

the class ComponentTest method createComponentAddDependencyAndStartComponent.

@Test
public void createComponentAddDependencyAndStartComponent() {
    ComponentImpl c = new ComponentImpl();
    c.setImplementation(MyComponent.class);
    SimpleServiceDependency d = new SimpleServiceDependency();
    d.setRequired(true);
    c.add(d);
    c.start();
    Assert.assertEquals("should not be available when started because of missing dependency", false, c.isAvailable());
    c.stop();
    c.remove(d);
}

Example 5 with ComponentImpl

use of org.apache.felix.dm.impl.ComponentImpl in project felix by apache.

the class ComponentTest method createComponentStartItAddDependencyAndMakeDependencyAvailable.

@Test
public void createComponentStartItAddDependencyAndMakeDependencyAvailable() {
    ComponentImpl c = new ComponentImpl();
    c.setImplementation(MyComponent.class);
    SimpleServiceDependency d = new SimpleServiceDependency();
    d.setRequired(true);
    c.start();
    c.add(d);
    Assert.assertEquals("Component should not be available: it is started but the dependency is not available", false, c.isAvailable());
    d.add(new EventImpl());
    Assert.assertEquals("dependency is available, component should be too", true, c.isAvailable());
    d.remove(new EventImpl());
    Assert.assertEquals("dependency is no longer available, component should not be either", false, c.isAvailable());
    c.remove(d);
    Assert.assertEquals("dependency is removed, component should be available again", true, c.isAvailable());
    c.stop();
    Assert.assertEquals("Component is stopped, should be unavailable now", false, c.isAvailable());
}