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SPIs for runtime extensions
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/*
* 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 .
*/
package org.fabric3.spi.federation;

import java.io.Serializable;
import java.util.Map;

/**
 * An active runtime in the domain.
 *
 * @version $Rev: 9960 $ $Date: 2011-02-08 13:21:22 +0000 (Tue, 08 Feb 2011) $
 */
public class RuntimeInstance {
    private String name;
    private Map metadata;

    /**
     * Constructor.
     *
     * @param name the unique runtime name.
     * @param metadata the runtime metadata
     */
    public RuntimeInstance(String name, Map metadata) {
        this.name = name;
        this.metadata = metadata;
    }

    /**
     * The unique runtime name. Runtime names are persistent across restarts.
     *
     * @return the runtime name
     */
    public String getName() {
        return name;
    }

    /**
     * Returns keyed metadata
     *
     * @param type the metadata type
     * @param key  the key
     * @return the metadata
     */
    public  T getMetadata(Class type, String key) {
        return type.cast(metadata.get(key));
    }
    
    public Map getMetadata() {
        return metadata;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;

        RuntimeInstance that = (RuntimeInstance) o;

        return !(name != null ? !name.equals(that.name) : that.name != null);

    }

    @Override
    public int hashCode() {
        return name != null ? name.hashCode() : 0;
    }
}