/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.felix.webconsole.internal.obr;


import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.felix.webconsole.Action;
import org.osgi.service.log.LogService;
import org.osgi.service.obr.RepositoryAdmin;
import org.osgi.service.obr.Resolver;
import org.osgi.service.obr.Resource;


public class InstallFromRepoAction extends AbstractObrPlugin implements Action
{

    public static final String NAME = "installFromOBR";


    public String getName()
    {
        return NAME;
    }


    public String getLabel()
    {
        return NAME;
    }


    /*
     * (non-Javadoc)
     *
     * @see org.apache.sling.manager.web.internal.Action#performAction(javax.servlet.http.HttpServletRequest,
     *      javax.servlet.http.HttpServletResponse)
     */
    public boolean performAction( HttpServletRequest request, HttpServletResponse response )
    {

        // check whether we have to do something
        String[] bundles = request.getParameterValues( "bundle" );
        if ( bundles == null || bundles.length == 0 )
        {
            getLog().log( LogService.LOG_INFO, "No resources to deploy" );
            return true;
        }

        RepositoryAdmin repoAdmin = getRepositoryAdmin();
        if ( repoAdmin != null )
        {

            Resolver resolver = repoAdmin.resolver();

            // prepare the deployment
            for ( int i = 0; i < bundles.length; i++ )
            {
                String bundle = bundles[i];
                int comma = bundle.indexOf( ',' );
                String name = ( comma > 0 ) ? bundle.substring( 0, comma ) : bundle;
                String version = ( comma < bundle.length() - 1 ) ? bundle.substring( comma + 1 ) : null;

                if ( name.length() > 0 )
                {
                    // no name, ignore this one
                    if ( version == null )
                    {
                        version = "*";
                    }

                    String filter = "(&(symbolicname=" + name + ")(version=" + version + "))";
                    Resource[] resources = repoAdmin.discoverResources( filter );
                    if ( resources != null && resources.length > 0 )
                    {
                        resolver.add( resources[0] );
                    }
                }

            }

            // check whether the "deploystart" button was clicked
            boolean start = request.getParameter( "deploystart" ) != null;

            DeployerThread dt = new DeployerThread( resolver, getLog(), start );
            dt.start();
        }

        // redirect to bundle list
        return true;
    }
}