OutputPluginManager.java

package edu.northwestern.cbits.purple_robot_manager.plugins;

import java.util.Collection;
import java.util.HashMap;
import java.util.Map;

import edu.northwestern.cbits.purple_robot_manager.logging.LogManager;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;

public class OutputPluginManager extends BroadcastReceiver
{
    public static OutputPluginManager sharedInstance = new OutputPluginManager();

    private Map<Class<OutputPlugin>, OutputPlugin> _plugins = new HashMap<>();

    public OutputPlugin pluginForClass(Context context, Class c)
    {
        OutputPlugin plugin = this._plugins.get(c);

        if (plugin != null)
            return plugin;

        this.onReceive(context, null);

        return this._plugins.get(c);
    }

    public static OutputPluginManager getSharedInstance()
    {
        return OutputPluginManager.sharedInstance;
    }

    public void onReceive(Context context, Intent intent)
    {
        for (Class<OutputPlugin> pluginClass : OutputPlugin.availablePluginClasses())
        {
            try
            {
                OutputPlugin plugin = this._plugins.get(pluginClass);

                if (plugin == null)
                {
                    plugin = pluginClass.newInstance();
                    this._plugins.put(pluginClass, plugin);
                }

                plugin.setContext(context);

                if (intent != null)
                    plugin.process(intent);
            }
            catch (InstantiationException | IllegalAccessException e)
            {
                LogManager.getInstance(context).logException(e);
            }
        }
    }

    public Collection<OutputPlugin> getPlugins()
    {
        return this._plugins.values();
    }
}