org.fabric3.fabric.executor.DisposeComponentCommandExecutor Maven / Gradle / Ivy

Go to download
/*
 * Fabric3
 * Copyright (c) 2009-2011 Metaform Systems
 *
 * Fabric3 is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as
 * published by the Free Software Foundation, either version 3 of
 * the License, or (at your option) any later version, with the
 * following exception:
 *
 * Linking this software statically or dynamically with other
 * modules is making a combined work based on this software.
 * Thus, the terms and conditions of the GNU General Public
 * License cover the whole combination.
 *
 * As a special exception, the copyright holders of this software
 * give you permission to link this software with independent
 * modules to produce an executable, regardless of the license
 * terms of these independent modules, and to copy and distribute
 * the resulting executable under terms of your choice, provided
 * that you also meet, for each linked independent module, the
 * terms and conditions of the license of that module. An
 * independent module is a module which is not derived from or
 * based on this software. If you modify this software, you may
 * extend this exception to your version of the software, but
 * you are not obligated to do so. If you do not wish to do so,
 * delete this exception statement from your version.
 *
 * Fabric3 is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty
 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Public License for more details.
 *
 * You should have received a copy of the
 * GNU General Public License along with Fabric3.
 * If not, see .
 *
 * ----------------------------------------------------
 *
 * Portions originally based on Apache Tuscany 2007
 * licensed under the Apache 2.0 license.
 *
 */
package org.fabric3.fabric.executor;

import java.net.URI;
import java.util.Collections;
import java.util.List;
import java.util.Map;

import org.osoa.sca.annotations.EagerInit;
import org.osoa.sca.annotations.Init;
import org.osoa.sca.annotations.Reference;

import org.fabric3.fabric.builder.BuilderNotFoundException;
import org.fabric3.fabric.command.DisposeComponentCommand;
import org.fabric3.spi.builder.BuilderException;
import org.fabric3.spi.builder.component.ComponentBuilder;
import org.fabric3.spi.builder.component.ComponentBuilderListener;
import org.fabric3.spi.cm.ComponentManager;
import org.fabric3.spi.cm.RegistrationException;
import org.fabric3.spi.component.Component;
import org.fabric3.spi.executor.CommandExecutor;
import org.fabric3.spi.executor.CommandExecutorRegistry;
import org.fabric3.spi.executor.ExecutionException;
import org.fabric3.spi.model.physical.PhysicalComponentDefinition;

/**
 * De-registers the component from the component manager.
 *
 * @version $Rev: 10112 $ $Date: 2011-03-22 19:38:51 +0000 (Tue, 22 Mar 2011) $
 */
@EagerInit
public class DisposeComponentCommandExecutor implements CommandExecutor {
    private CommandExecutorRegistry executorRegistry;
    private ComponentManager componentManager;
    private Map, ComponentBuilder> builders;
    private List listeners = Collections.emptyList();

    public DisposeComponentCommandExecutor(@Reference CommandExecutorRegistry executorRegistry, @Reference ComponentManager componentManager) {
        this.executorRegistry = executorRegistry;
        this.componentManager = componentManager;
    }

    @Reference(required = false)
    public void setBuilders(Map, ComponentBuilder> builders) {
        this.builders = builders;
    }

    @Reference(required = false)
    public void setListeners(List listeners) {
        this.listeners = listeners;
    }

    @Init
    public void init() {
        executorRegistry.register(DisposeComponentCommand.class, this);
    }

    @SuppressWarnings({"unchecked"})
    public void execute(DisposeComponentCommand command) throws ExecutionException {
        PhysicalComponentDefinition definition = command.getDefinition();
        URI uri = definition.getComponentUri();
        try {
            Component component = componentManager.unregister(uri);
            ComponentBuilder builder = builders.get(definition.getClass());
            if (builder == null) {
                throw new BuilderNotFoundException("Builder not found for " + definition.getClass().getName());
            }
            builder.dispose(definition, component);
            for (ComponentBuilderListener listener : listeners) {
                listener.onDispose(component, definition);
            }
        } catch (RegistrationException e) {
            throw new ExecutionException("Unexpected exception un-registering component: " + uri, e);
        } catch (BuilderNotFoundException e) {
            throw new ExecutionException(e);
        } catch (BuilderException e) {
            throw new ExecutionException(e);
        }

    }

}