LifecycleManagerObserver.java

/*
 * JBoss, Home of Professional Open Source
 * Copyright 2012, Red Hat Middleware LLC, and individual contributors
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * 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.jboss.arquillian.warp.impl.server.lifecycle;

import org.jboss.arquillian.core.api.Injector;
import org.jboss.arquillian.core.api.Instance;
import org.jboss.arquillian.core.api.InstanceProducer;
import org.jboss.arquillian.core.api.annotation.Inject;
import org.jboss.arquillian.core.api.annotation.Observes;
import org.jboss.arquillian.warp.impl.server.inspection.InspectionRegistry;
import org.jboss.arquillian.warp.spi.LifecycleManager;
import org.jboss.arquillian.warp.spi.WarpCommons;
import org.jboss.arquillian.warp.spi.context.RequestScoped;
import org.jboss.arquillian.warp.spi.event.AfterRequest;
import org.jboss.arquillian.warp.spi.event.BeforeRequest;
import org.jboss.arquillian.warp.spi.exception.StoreHasAssociatedObjectsException;

/**
 * Drives {@link LifecycleManagerImpl} and {@link InspectionRegistry} lifecycle.
 *
 * @author Lukas Fryc
 */
public class LifecycleManagerObserver {

    @Inject
    @RequestScoped
    private InstanceProducer<LifecycleManager> manager;

    @Inject
    @RequestScoped
    private InstanceProducer<InspectionRegistry> registry;

    @Inject
    private Instance<Injector> injector;

    private <T> T inject(T object) {
        return injector.get().inject(object);
    }

    public void initializeLifecycleManagerAndInspectionRegistry(@Observes BeforeRequest event) {
        LifecycleManager lifecycleManager = inject(new LifecycleManagerImpl());

        manager.set(inject(lifecycleManager));
        registry.set(inject(new InspectionRegistry()));

        event.getRequest().setAttribute(WarpCommons.WARP_REQUEST_LIFECYCLE_MANAGER_ATTRIBUTE, lifecycleManager);
    }

    public void finalizeManager(@Observes AfterRequest event) {
        try {
            event.getRequest().setAttribute(WarpCommons.WARP_REQUEST_LIFECYCLE_MANAGER_ATTRIBUTE, null);
            manager.get().checkUnbound();
        } catch (StoreHasAssociatedObjectsException e) {
            throw new IllegalStateException(e);
        }
    }
}