ServerInstanceProviderImpl.java

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package org.netbeans.modules.ruby.railsprojects.server;

import java.util.ArrayList;
import java.util.List;
import javax.swing.event.ChangeListener;
import org.netbeans.api.server.ServerInstance;
import org.netbeans.spi.server.ServerInstanceFactory;
import org.netbeans.spi.server.ServerInstanceImplementation;
import org.netbeans.spi.server.ServerInstanceProvider;
import org.openide.util.ChangeSupport;

/**
 * A server instance provider implementation that handles registering
 * Mongrel and WEBrick instances.
 * 
 * @author Erno Mononen
 */
public class ServerInstanceProviderImpl implements ServerInstanceProvider {

    private static final ServerInstanceProviderImpl INSTANCE = new ServerInstanceProviderImpl();
    private final ChangeSupport changeSupport = new ChangeSupport(this);

    public static final ServerInstanceProviderImpl getInstance() {
        return INSTANCE;
    }

    public List<ServerInstance> getInstances() {
        List<ServerInstance> result = new ArrayList<ServerInstance>();
        for (RubyServer server : ServerRegistry.getDefault().getRubyServers()) {
            //XXX: get rid of the cast
            ServerInstance si = ServerInstanceFactory.createServerInstance((ServerInstanceImplementation) server);
            result.add(si);
        }
        return result;
    }

    public void addChangeListener(ChangeListener listener) {
        this.changeSupport.addChangeListener(listener);
    }

    public void removeChangeListener(ChangeListener listener) {
        this.changeSupport.removeChangeListener(listener);
    }
    
    void fireServersChanged() {
        this.changeSupport.fireChange();
    }
}