FeedIdentifierFactory.java

/*
 * Copyright (c) 2004-2011 Marco Maccaferri and others.
 * 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:
 *     Marco Maccaferri - initial API and implementation
 */

package org.eclipsetrader.yahoo.internal.ui;

import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.core.runtime.IExecutableExtension;
import org.eclipse.core.runtime.IExecutableExtensionFactory;
import org.eclipsetrader.core.feed.IFeedIdentifier;
import org.eclipsetrader.core.feed.IFeedProperties;
import org.eclipsetrader.core.views.IDataProvider;
import org.eclipsetrader.core.views.IDataProviderFactory;

public class FeedIdentifierFactory implements IDataProviderFactory, IExecutableExtension, IExecutableExtensionFactory {

    private String id;
    private String name;

    public class DataProvider implements IDataProvider {

        public DataProvider() {
        }

        /* (non-Javadoc)
         * @see org.eclipsetrader.core.views.IDataProvider#init(org.eclipse.core.runtime.IAdaptable)
         */
        @Override
        public void init(IAdaptable adaptable) {
        }

        /* (non-Javadoc)
         * @see org.eclipsetrader.core.views.IDataProvider#getFactory()
         */
        @Override
        public IDataProviderFactory getFactory() {
            return FeedIdentifierFactory.this;
        }

        /* (non-Javadoc)
         * @see org.eclipsetrader.core.views.IDataProvider#getValue(org.eclipse.core.runtime.IAdaptable)
         */
        @Override
        public IAdaptable getValue(IAdaptable adaptable) {
            IFeedIdentifier identifier = (IFeedIdentifier) adaptable.getAdapter(IFeedIdentifier.class);
            if (identifier != null) {
                IFeedProperties properties = (IFeedProperties) identifier.getAdapter(IFeedProperties.class);
                if (properties != null) {
                    if (properties.getProperty("org.eclipsetrader.yahoo.symbol") != null) {
                        final String value = properties.getProperty("org.eclipsetrader.yahoo.symbol");
                        return new IAdaptable() {

                            @Override
                            @SuppressWarnings("unchecked")
                            public Object getAdapter(Class adapter) {
                                if (adapter.isAssignableFrom(String.class)) {
                                    return value;
                                }
                                return null;
                            }

                            @Override
                            public boolean equals(Object obj) {
                                if (!(obj instanceof IAdaptable)) {
                                    return false;
                                }
                                String s = (String) ((IAdaptable) obj).getAdapter(String.class);
                                return value.equals(s);
                            }
                        };
                    }
                }
            }
            return null;
        }

        /* (non-Javadoc)
         * @see org.eclipsetrader.core.views.IDataProvider#dispose()
         */
        @Override
        public void dispose() {
        }
    }

    public FeedIdentifierFactory() {
    }

    /* (non-Javadoc)
     * @see org.eclipsetrader.core.views.IDataProviderFactory#getId()
     */
    @Override
    public String getId() {
        return id;
    }

    /* (non-Javadoc)
     * @see org.eclipsetrader.core.views.IDataProviderFactory#getName()
     */
    @Override
    public String getName() {
        return name;
    }

    /* (non-Javadoc)
     * @see org.eclipse.core.runtime.IExecutableExtension#setInitializationData(org.eclipse.core.runtime.IConfigurationElement, java.lang.String, java.lang.Object)
     */
    @Override
    public void setInitializationData(IConfigurationElement config, String propertyName, Object data) throws CoreException {
        id = config.getAttribute("id");
        name = config.getAttribute("name");
    }

    /* (non-Javadoc)
     * @see org.eclipse.core.runtime.IExecutableExtensionFactory#create()
     */
    @Override
    public Object create() throws CoreException {
        return this;
    }

    /* (non-Javadoc)
     * @see org.eclipsetrader.core.views.IDataProviderFactory#createProvider()
     */
    @Override
    public IDataProvider createProvider() {
        return new DataProvider();
    }

    /* (non-Javadoc)
     * @see org.eclipsetrader.core.views.IDataProviderFactory#getType()
     */
    @Override
    @SuppressWarnings("unchecked")
    public Class[] getType() {
        return new Class[] {
            String.class,
        };
    }
}