com.quantcomponents.ui.marketdata.MarketDataPlugin.java Source code

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Here is the source code for com.quantcomponents.ui.marketdata.MarketDataPlugin.java

Source

/*******************************************************************************
 * Copyright (c) 2013 Luigi Sgro. All rights reserved. This
 * program and the accompanying materials are made available under the terms of
 * the Eclipse Public License v1.0 which accompanies this distribution, and is
 * available at http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Luigi Sgro - initial API and implementation
 ******************************************************************************/
package com.quantcomponents.ui.marketdata;

import org.eclipse.core.runtime.FileLocator;
import org.eclipse.core.runtime.Path;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.resource.ImageRegistry;
import org.eclipse.ui.plugin.AbstractUIPlugin;
import org.osgi.framework.BundleContext;
import org.osgi.framework.Filter;
import org.osgi.framework.ServiceReference;
import org.osgi.util.tracker.ServiceTracker;
import org.osgi.util.tracker.ServiceTrackerCustomizer;

import com.quantcomponents.core.calendar.ITradingCalendarManager;
import com.quantcomponents.marketdata.IMarketDataManager;
import com.quantcomponents.ui.core.IMonitorableContainer;
import com.quantcomponents.ui.core.MonitorableContainer;

/**
 * The activator class controls the plug-in life cycle
 */
public class MarketDataPlugin extends AbstractUIPlugin {

    // The plug-in ID
    public static final String PLUGIN_ID = "com.quantcomponent.ui.marketdata"; //$NON-NLS-1$
    public static final String MARKET_DATA_MANAGER_IMAGE_KEY = "marketDataManager";
    public static final String MARKET_DATA_MANAGER_IMAGE_PATH = "icons/marketDataManager.png";
    public static final String STOCK_DATABASE_IMAGE_KEY = "stockDatabase";
    public static final String STOCK_DATABASE_IMAGE_PATH = "icons/stockDatabase.png";
    public static final String UNKNOWN_OBJECT_IMAGE_KEY = "unknownObject";
    public static final String UNKNOWN_OBJECT_IMAGE_PATH = "icons/unknownObject.png";
    public static final String DECORATOR_AUTOUPDATE_IMAGE_KEY = "decoratorAutoupdate";
    public static final String DECORATOR_AUTOUPDATE_IMAGE_PATH = "icons/decoratorAutoupdate.png";

    // The shared instance
    private static MarketDataPlugin plugin;

    private IMarketDataManagerContainer marketDataManagerContainer;
    private volatile ITradingCalendarManager tradingCalendarManager;

    /*
     * (non-Javadoc)
     * @see org.eclipse.ui.plugin.AbstractUIPlugin#start(org.osgi.framework.BundleContext)
     */
    public void start(final BundleContext context) throws Exception {
        super.start(context);
        Filter filter = context
                .createFilter("(&(objectClass=" + IMarketDataManager.class.getName() + ")(!(service.imported=*)))");
        marketDataManagerContainer = new MarketDataManagerContainer(new MarketDataManagerContainerWrappingDecorator(
                new MonitorableContainer<MarketDataManagerPresentationWrapper>()), filter, context);
        plugin = this;
        ServiceTracker<ITradingCalendarManager, ITradingCalendarManager> calendarManagerTracker = new ServiceTracker<ITradingCalendarManager, ITradingCalendarManager>(
                context, ITradingCalendarManager.class,
                new ServiceTrackerCustomizer<ITradingCalendarManager, ITradingCalendarManager>() {

                    @Override
                    public ITradingCalendarManager addingService(
                            ServiceReference<ITradingCalendarManager> reference) {
                        if (tradingCalendarManager == null) {
                            tradingCalendarManager = context.getService(reference);
                        }
                        return null;
                    }

                    @Override
                    public void modifiedService(ServiceReference<ITradingCalendarManager> reference,
                            ITradingCalendarManager service) {
                    }

                    @Override
                    public void removedService(ServiceReference<ITradingCalendarManager> reference,
                            ITradingCalendarManager service) {
                        if (service == tradingCalendarManager) {
                            tradingCalendarManager = null;
                        }
                    }
                });
        calendarManagerTracker.open();
    }

    /*
     * (non-Javadoc)
     * @see org.eclipse.ui.plugin.AbstractUIPlugin#stop(org.osgi.framework.BundleContext)
     */
    public void stop(BundleContext context) throws Exception {
        marketDataManagerContainer.dispose();
        plugin = null;
        super.stop(context);
    }

    /**
     * Returns the shared instance
     *
     * @return the shared instance
     */
    public static MarketDataPlugin getDefault() {
        return plugin;
    }

    public IMonitorableContainer<MarketDataManagerPresentationWrapper> getMarketDataManagerContainer() {
        return marketDataManagerContainer;
    }

    public ITradingCalendarManager getTradingCalendarManager() {
        return tradingCalendarManager;
    }

    @Override
    protected void initializeImageRegistry(ImageRegistry registry) {
        super.initializeImageRegistry(registry);
        registry.put(MARKET_DATA_MANAGER_IMAGE_KEY, ImageDescriptor
                .createFromURL(FileLocator.find(getBundle(), new Path(MARKET_DATA_MANAGER_IMAGE_PATH), null)));
        registry.put(STOCK_DATABASE_IMAGE_KEY, ImageDescriptor
                .createFromURL(FileLocator.find(getBundle(), new Path(STOCK_DATABASE_IMAGE_PATH), null)));
        registry.put(UNKNOWN_OBJECT_IMAGE_KEY, ImageDescriptor
                .createFromURL(FileLocator.find(getBundle(), new Path(UNKNOWN_OBJECT_IMAGE_PATH), null)));
        registry.put(DECORATOR_AUTOUPDATE_IMAGE_KEY, ImageDescriptor
                .createFromURL(FileLocator.find(getBundle(), new Path(DECORATOR_AUTOUPDATE_IMAGE_PATH), null)));
    }

}