Activator.java

/*
 * Copyright 2007 Alin Dreghiciu.
 *
 * Licensed  under the  Apache License,  Version 2.0  (the "License");
 * you may not use  this file  except in  compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed  under the  License is distributed on an "AS IS" BASIS,
 * WITHOUT  WARRANTIES OR CONDITIONS  OF ANY KIND, either  express  or
 * implied.
 *
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.ops4j.pax.url.war.internal;

import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import org.osgi.framework.BundleContext;
import org.ops4j.pax.url.commons.handler.ConnectionFactory;
import org.ops4j.pax.url.commons.handler.HandlerActivator;
import org.ops4j.pax.url.war.ServiceConstants;
import org.ops4j.util.property.PropertyResolver;

/**
 * Bundle activator for war protocol handler.
 *
 * @author Alin Dreghiciu
 * @since 0.1.0, January 13, 2007
 */
public final class Activator
    extends HandlerActivator<Configuration>
{

    /**
     * @see HandlerActivator#HandlerActivator(String[], String, ConnectionFactory)
     */
    public Activator()
    {
        super(
            new String[]{
                ServiceConstants.PROTOCOL_WAR,
                ServiceConstants.PROTOCOL_WAR_INSTRUCTIONS,
                ServiceConstants.PROTOCOL_WAR_REFERENCE,
                ServiceConstants.PROTOCOL_WEB_BUNDLE
            },
            ServiceConstants.PID,
            new ConnectionFactory<Configuration>()
            {

                /**
                 * Creates a war url connection.
                 *
                 * @see ConnectionFactory#createConnection(BundleContext , URL, Object)
                 */
                public URLConnection createConnection( final BundleContext bundleContext,
                                                       final URL url,
                                                       final Configuration config )
                    throws MalformedURLException
                {
                    final String protocol = url.getProtocol();
                    if( ServiceConstants.PROTOCOL_WAR.equals( protocol ) )
                    {
                        return new WarConnection( url, config );
                    }
                    if( ServiceConstants.PROTOCOL_WEB_BUNDLE.equals( protocol ) )
                    {
                        return new WebBundleConnection( url, config );
                    }
                    if( ServiceConstants.PROTOCOL_WAR_INSTRUCTIONS.equals( protocol )
                        || ServiceConstants.PROTOCOL_WAR_REFERENCE.equals( protocol ) )
                    {
                        return new WarReferenceConnection( url, config );
                    }
                    throw new MalformedURLException( "Unsupported protocol: " + protocol );
                }

                /**
                 * @see org.ops4j.pax.url.commons.handler.ConnectionFactory#createConfiguration(org.ops4j.util.property.PropertyResolver)
                 */
                public Configuration createConfiguration( final PropertyResolver propertyResolver )
                {
                    return new ConfigurationImpl( propertyResolver );
                }

            }
        );
    }

}